# frozen_string_literal: true

RSpec.describe User do
  subject(:user) { Fabricate(:user, last_seen_at: 1.day.ago) }

  fab!(:group)

  it_behaves_like "it has custom fields"

  def user_error_message(*keys)
    I18n.t(:"activerecord.errors.models.user.attributes.#{keys.join(".")}")
  end

  it do
    is_expected.to have_many(:pending_posts).class_name("ReviewableQueuedPost").with_foreign_key(
      :target_created_by_id,
    )
  end

  describe ".in_any_groups?" do
    fab!(:group)

    it "returns true if any of the group IDs are the 'everyone' auto group" do
      expect(user.in_any_groups?([group.id, Group::AUTO_GROUPS[:everyone]])).to eq(true)
    end

    it "returns true if the user is in the group" do
      expect(user.in_any_groups?([group.id])).to eq(false)
      group.add(user)
      user.reload
      expect(user.in_any_groups?([group.id])).to eq(true)
    end

    it "always returns true for system user for automated groups" do
      GroupUser.where(user_id: Discourse::SYSTEM_USER_ID).delete_all
      Discourse.system_user.reload
      expect(Discourse.system_user.in_any_groups?([group.id])).to eq(false)
      expect(Discourse.system_user.in_any_groups?([Group::AUTO_GROUPS[:trust_level_4]])).to eq(true)
      expect(Discourse.system_user.in_any_groups?([Group::AUTO_GROUPS[:admins]])).to eq(true)
    end
  end

  describe "Associations" do
    it "should delete sidebar_section_links when a user is destroyed" do
      Fabricate(:category_sidebar_section_link, user: user)
      Fabricate(:tag_sidebar_section_link, user: user)

      expect { user.destroy! }.to change { SidebarSectionLink.where(user: user).count }.from(2).to(
        0,
      )
    end
  end

  describe "Callbacks" do
    describe "default sidebar section links" do
      fab!(:category)

      fab!(:secured_category) do
        category = Fabricate(:category)
        category.permissions = { "staff" => :full }
        category.save!
        category
      end

      fab!(:tag)
      fab!(:hidden_tag) { Fabricate(:tag) }
      fab!(:staff_tag_group) do
        Fabricate(:tag_group, permissions: { "staff" => 1 }, tag_names: [hidden_tag.name])
      end

      before do
        SiteSetting.navigation_menu = "sidebar"
        SiteSetting.tagging_enabled = true
        SiteSetting.default_navigation_menu_categories = "#{category.id}|#{secured_category.id}"
        SiteSetting.default_navigation_menu_tags = "#{tag.name}|#{hidden_tag.name}"
      end

      it "creates sidebar section link records for categories and tags that have been configured as defaults" do
        user = Fabricate(:user)

        expect(
          SidebarSectionLink.where(linkable_type: "Category", user_id: user.id).pluck(:linkable_id),
        ).to contain_exactly(category.id, secured_category.id)

        expect(
          SidebarSectionLink.where(linkable_type: "Tag", user_id: user.id).pluck(:linkable_id),
        ).to contain_exactly(tag.id, hidden_tag.id)
      end

      it "should not create any sidebar section link records for staged users" do
        user = Fabricate(:user, staged: true)

        expect(SidebarSectionLink.exists?(user: user)).to eq(false)
      end

      it "should create sidebar section link records when user has been unstaged" do
        user = Fabricate(:user, staged: true)
        user.unstage!

        expect(SidebarSectionLink.exists?(user: user)).to eq(true)
      end

      it "should not create any sidebar section link records for non human users" do
        id = -Time.now.to_i
        user = Fabricate(:user, id: id)

        expect(SidebarSectionLink.exists?(user: user)).to eq(false)
      end

      it "should not create any tag sidebar section link records when tagging is disabled" do
        SiteSetting.tagging_enabled = false

        user = Fabricate(:user)

        expect(SidebarSectionLink.exists?(linkable_type: "Category", user_id: user.id)).to eq(true)
        expect(SidebarSectionLink.exists?(linkable_type: "Tag", user_id: user.id)).to eq(false)
      end
    end

    describe "#change_display_name" do
      it "enqueues a job to retroactively update display name in quotes, etc." do
        expect_enqueued_with(
          job: :change_display_name,
          args: {
            user_id: user.id,
            old_name: "Bruce Wayne",
            new_name: "Batman",
          },
        ) { user.update(name: "Batman") }
      end
    end
  end

  describe "Validations" do
    describe "#username" do
      it { is_expected.to validate_presence_of :username }

      describe "when username already exists" do
        it "should not be valid" do
          new_user = Fabricate.build(:user, username: user.username.upcase)

          expect(new_user).to_not be_valid

          expect(new_user.errors.full_messages.first).to include(I18n.t(:"user.username.unique"))
        end
      end

      describe "when group with a same name already exists" do
        it "should not be valid" do
          new_user = Fabricate.build(:user, username: group.name.upcase)

          expect(new_user).to_not be_valid

          expect(new_user.errors.full_messages.first).to include(I18n.t(:"user.username.unique"))
        end
      end

      it "is not valid if username changes to be same as password" do
        user.username = "myawesomepassword"
        expect(user).to_not be_valid
        expect(user.errors.full_messages.first).to include(
          user_error_message(:username, :same_as_password),
        )
      end

      it "is not valid if username lowercase changes to be same as password" do
        user.username = "MyAwesomePassword"
        expect(user).to_not be_valid
        expect(user.errors.full_messages.first).to include(
          user_error_message(:username, :same_as_password),
        )
      end

      describe "when a username is an integer" do
        it "is converted to a string on normalization" do
          expect(User.normalize_username(123)).to eq("123") # This is possible via the API
        end
      end
    end

    describe "name" do
      it "is not valid if it changes to be the same as the password" do
        user.name = "myawesomepassword"
        expect(user).to_not be_valid
        expect(user.errors.full_messages.first).to include(
          user_error_message(:name, :same_as_password),
        )
      end

      it "is not valid if name lowercase changes to be the same as the password" do
        user.name = "MyAwesomePassword"
        expect(user).to_not be_valid
        expect(user.errors.full_messages.first).to include(
          user_error_message(:name, :same_as_password),
        )
      end

      it "doesn't raise an error if the name is longer than the max password length" do
        user.name = "x" * (User.max_password_length + 1)
        expect(user).to be_valid
      end
    end

    describe "emails" do
      it { is_expected.to validate_presence_of :primary_email }

      let(:user) { Fabricate.build(:user) }

      describe "when record has a valid email" do
        it "should be valid" do
          user.email = "test@gmail.com"

          expect(user).to be_valid
        end
      end

      describe "when record has an invalid email" do
        it "should not be valid" do
          user.email = "test@gmailcom"

          expect(user).to_not be_valid
          expect(user.errors.messages.keys).to contain_exactly(:primary_email)
        end
      end

      describe "when record has an email that as already been taken" do
        it "should not be valid" do
          user2 = Fabricate(:user)
          user.email = user2.email.upcase

          expect(user).to_not be_valid

          expect(user.errors.messages[:primary_email]).to include(
            I18n.t("activerecord.errors.messages.taken"),
          )
        end
      end

      describe "when user is staged" do
        it "should still validate presence of primary_email" do
          user.staged = true
          user.email = nil

          expect(user).to_not be_valid
          expect(user.errors.messages).to include(:primary_email)
        end
      end

      describe "when primary_email is being reassigned to another user" do
        it "should not be valid" do
          user2 = Fabricate.build(:user, email: nil)
          user.save!
          user2.primary_email = user.primary_email

          expect(user2).to_not be_valid
          expect(user2.errors.messages).to include(:primary_email)
          expect(user2.primary_email.errors.messages).to include(:user_id)
        end
      end
    end

    describe "#user_fields" do
      fab!(:user_field) { Fabricate(:user_field, show_on_profile: true) }
      let(:user_field_value) { user.reload.user_fields[user_field.id.to_s] }
      fab!(:watched_word) { Fabricate(:watched_word, word: "bad") }

      before { user.set_user_field(user_field.id, value) }

      context "when user fields contain watched words" do
        context "when watched words are of type 'Block'" do
          let(:value) { "bad user field value" }

          context "when user field is public" do
            it "is not valid" do
              user.valid?
              expect(user.errors[:base].size).to eq(1)
              expect(user.errors.messages[:base]).to include(/you can't post the word/)
            end
          end

          context "when user field is private" do
            before { user_field.update(show_on_profile: false) }

            it { is_expected.to be_valid }
          end
          context "when SiteSetting.disable_watched_word_checking_in_user_fields is true" do
            before { SiteSetting.disable_watched_word_checking_in_user_fields = true }

            it { is_expected.to be_valid }
          end
        end

        context "when watched words are of type 'Censor'" do
          let!(:censored_word) do
            Fabricate(:watched_word, word: "censored", action: WatchedWord.actions[:censor])
          end
          let(:value) { "censored word" }

          context "when user field is public" do
            it "censors the words upon saving" do
              user.save!
              expect(user_field_value).to eq "■■■■■■■■ word"
            end

            context "when SiteSetting.disable_watched_word_checking_in_user_fields is true" do
              before { SiteSetting.disable_watched_word_checking_in_user_fields = true }

              it "does not censor the words upon saving" do
                user.save!
                expect(user_field_value).to eq "censored word"
              end
            end
          end

          context "when user field is private" do
            before { user_field.update(show_on_profile: false) }

            it "does not censor anything" do
              user.save!
              expect(user_field_value).to eq "censored word"
            end
          end
        end

        context "when watched words are of type 'Replace'" do
          let(:value) { "word to replace" }
          let!(:replace_word) do
            Fabricate(
              :watched_word,
              word: "to replace",
              replacement: "replaced",
              action: WatchedWord.actions[:replace],
            )
          end

          context "when user field is public" do
            it "replaces the words upon saving" do
              user.save!
              expect(user_field_value).to eq "word replaced"
            end
            context "when SiteSetting.disable_watched_word_checking_in_user_fields is true" do
              before { SiteSetting.disable_watched_word_checking_in_user_fields = true }

              it "does not replace anything" do
                user.save!
                expect(user_field_value).to eq "word to replace"
              end
            end
          end

          context "when user field is private" do
            before { user_field.update(show_on_profile: false) }

            it "does not replace anything" do
              user.save!
              expect(user_field_value).to eq "word to replace"
            end
          end
        end

        context "when watched words are of type 'link'" do
          let(:value) { "don't replace me" }
          let!(:replace_word) do
            Fabricate(
              :watched_word,
              word: "replace",
              replacement: "touch",
              action: WatchedWord.actions[:link],
            )
          end

          it "does not replace anything" do
            user.save!
            expect(user_field_value).to eq value
          end
        end
      end

      context "when user fields do not contain watched words" do
        let(:value) { "good user field value" }

        it { is_expected.to be_valid }
      end

      context "when user fields contain URL" do
        let(:value) { "https://discourse.org" }

        it "is not cooked" do
          user.save!
          expect(user_field_value).to eq "https://discourse.org"
        end
      end

      context "with a multiselect user field" do
        fab!(:user_field) do
          Fabricate(:user_field, field_type: "multiselect", show_on_profile: true) do
            user_field_options do
              [
                Fabricate(:user_field_option, value: "Axe"),
                Fabricate(:user_field_option, value: "Sword"),
              ]
            end
          end
        end

        let(:user_field_value) { user.reload.user_fields[user_field.id.to_s] }

        context "with a blocked word" do
          let(:value) { %w[Axe bad Sword] }

          it "does not block the word since it is not user generated-content" do
            user.save!
            expect(user_field_value).to eq %w[Axe bad Sword]
          end
        end

        context "with a censored word" do
          let(:value) { %w[Axe bad Sword] }
          before { watched_word.action = WatchedWord.actions[:censor] }

          it "does not censor the word since it is not user generated-content" do
            user.save!
            expect(user_field_value).to eq %w[Axe bad Sword]
          end
        end
      end

      context "when reseting user fields" do
        let!(:censored_word) do
          Fabricate(:watched_word, word: "censored", action: WatchedWord.actions[:censor])
        end
        let(:value) { nil }

        it "works" do
          user.save!
          expect(user_field_value).to eq nil
        end
      end
    end
  end

  describe "#count_by_signup_date" do
    before(:each) do
      User.destroy_all
      freeze_time_safe
      Fabricate(:user)
      Fabricate(:user, created_at: 1.day.ago)
      Fabricate(:user, created_at: 1.day.ago)
      Fabricate(:user, created_at: 2.days.ago)
      Fabricate(:user, created_at: 4.days.ago)
    end
    let(:signups_by_day) do
      { 1.day.ago.to_date => 2, 2.days.ago.to_date => 1, Time.now.utc.to_date => 1 }
    end

    it "collect closed interval signups" do
      expect(User.count_by_signup_date(2.days.ago, Time.now)).to include(signups_by_day)
      expect(User.count_by_signup_date(2.days.ago, Time.now)).not_to include(
        4.days.ago.to_date => 1,
      )
    end
  end

  describe ".enqueue_welcome_message" do
    fab!(:user)

    it "enqueues the system message" do
      SiteSetting.send_welcome_message = true

      expect_enqueued_with(
        job: :send_system_message,
        args: {
          user_id: user.id,
          message_type: "welcome_user",
        },
      ) { user.enqueue_welcome_message("welcome_user") }
    end

    it "doesn't enqueue the system message when the site settings disable it" do
      SiteSetting.send_welcome_message = false

      expect_not_enqueued_with(
        job: :send_system_message,
        args: {
          user_id: user.id,
          message_type: "welcome_user",
        },
      ) { user.enqueue_welcome_message("welcome_user") }
    end
  end

  describe "enqueue_staff_welcome_message" do
    fab!(:first_admin) { Fabricate(:admin) }
    fab!(:user)

    it "enqueues message for admin" do
      expect { user.grant_admin! }.to change { Jobs::SendSystemMessage.jobs.count }.by 1
    end

    it "enqueues message for moderator" do
      expect { user.grant_moderation! }.to change { Jobs::SendSystemMessage.jobs.count }.by 1
    end

    it "skips the message if already an admin" do
      user.update(admin: true)
      expect { user.grant_admin! }.not_to change { Jobs::SendSystemMessage.jobs.count }
    end
  end

  describe ".set_default_tags_preferences" do
    let(:tag) { Fabricate(:tag) }

    it "should set default tag preferences when new user created" do
      SiteSetting.default_tags_watching = tag.name
      user = Fabricate(:user)
      expect(
        TagUser.exists?(
          tag_id: tag.id,
          user_id: user.id,
          notification_level: TagUser.notification_levels[:watching],
        ),
      ).to be_truthy
    end
  end

  describe "reviewable" do
    let(:user) { Fabricate(:user, active: false) }
    fab!(:admin)

    before { Jobs.run_immediately! }

    it "creates a reviewable for the user if must_approve_users is true and activate is called" do
      SiteSetting.must_approve_users = true
      user

      # Inactive users don't have reviewables
      reviewable = ReviewableUser.find_by(target: user)
      expect(reviewable).to be_blank

      user.activate
      reviewable = ReviewableUser.find_by(target: user)
      expect(reviewable).to be_present
      expect(reviewable.score > 0).to eq(true)
      expect(reviewable.reviewable_scores).to be_present
    end

    it "creates a reviewable for the user if must_approve_users is true and their token is confirmed" do
      SiteSetting.must_approve_users = true
      user

      # Inactive users don't have reviewables
      reviewable = ReviewableUser.find_by(target: user)
      expect(reviewable).to be_blank

      EmailToken.confirm(Fabricate(:email_token, user: user).token)
      expect(user.reload.active).to eq(true)
      reviewable = ReviewableUser.find_by(target: user)
      expect(reviewable).to be_present
    end

    it "doesn't create a reviewable if must_approve_users is false" do
      user
      expect(ReviewableUser.find_by(target: user)).to be_blank
    end

    it "will reject a reviewable if the user is deactivated" do
      SiteSetting.must_approve_users = true
      user

      user.activate
      reviewable = ReviewableUser.find_by(target: user)
      expect(reviewable.pending?).to eq(true)

      user.deactivate(admin)
      expect(reviewable.reload.rejected?).to eq(true)
    end
  end

  describe "delete posts in batches" do
    fab!(:post1) { Fabricate(:post) }
    fab!(:user) { post1.user }
    fab!(:post2) { Fabricate(:post, topic: post1.topic, user: user) }
    fab!(:post3) { Fabricate(:post, user: user) }
    fab!(:posts) { [post1, post2, post3] }
    fab!(:post_ids) { [post1.id, post2.id, post3.id] }
    let(:guardian) { Guardian.new(Fabricate(:admin)) }
    fab!(:reviewable_queued_post) { Fabricate(:reviewable_queued_post, target_created_by: user) }

    it "deletes only one batch of posts" do
      post2
      deleted_posts = user.delete_posts_in_batches(guardian, 1)
      expect(Post.where(id: post_ids).count).to eq(2)
      expect(deleted_posts.length).to eq(1)
      expect(deleted_posts[0]).to eq(post2)
    end

    it "correctly deletes posts and topics" do
      posts
      user.delete_posts_in_batches(guardian, 20)

      expect(Post.where(id: post_ids)).to be_empty
      expect(Reviewable.where(created_by: user).count).to eq(0)

      posts.each { |p| expect(Topic.find_by(id: p.topic_id)).to be_nil if p.is_first_post? }
    end

    it "does not allow non moderators to delete all posts" do
      invalid_guardian = Guardian.new(Fabricate(:user))

      expect do
        user.delete_posts_in_batches(invalid_guardian)
      end.to raise_error Discourse::InvalidAccess

      posts.each do |p|
        p.reload
        expect(p).to be_present
        expect(p.topic).to be_present
      end
    end
  end

  describe "new" do
    subject(:user) { Fabricate.build(:user) }

    it { is_expected.to be_valid }
    it { is_expected.not_to be_admin }
    it { is_expected.not_to be_approved }

    it "is properly initialized" do
      expect(user.approved_at).to be_blank
      expect(user.approved_by_id).to be_blank
    end

    it "triggers an extensibility event" do
      event = DiscourseEvent.track_events { user.save! }.first

      expect(event[:event_name]).to eq(:user_created)
      expect(event[:params].first).to eq(user)
    end

    context "with after_save" do
      before { user.save! }

      it "has correct settings" do
        expect(user.email_tokens).to be_present
        expect(user.user_stat).to be_present
        expect(user.user_profile).to be_present
        expect(user.user_option.email_messages_level).to eq(UserOption.email_level_types[:always])
        expect(user.user_option.email_level).to eq(UserOption.email_level_types[:only_when_away])
      end

      context "with avatar" do
        let(:user) { build(:user, uploaded_avatar_id: 99, username: "Sam") }

        it "mark all the user's quoted posts as 'needing a rebake' when the avatar changes" do
          topic = Fabricate(:topic, user: user)
          quoted_post = create_post(user: user, topic: topic, post_number: 1, raw: "quoted post")
          post = create_post(raw: <<~RAW)
            Lorem ipsum

            [quote="#{user.username}, post:1, topic:#{quoted_post.topic.id}"]
            quoted post
            [/quote]
          RAW

          expect(post.baked_version).not_to be_nil

          user.update!(name: "Sam")
          expect(post.reload.baked_version).not_to be_nil

          user.update!(uploaded_avatar_id: 100)
          expect(post.reload.baked_version).to be_nil
        end
      end
    end

    it "downcases email addresses" do
      user = Fabricate.build(:user, email: "Fancy.Caps.4.U@gmail.com")
      user.valid?
      expect(user.email).to eq("fancy.caps.4.u@gmail.com")
    end

    it "strips whitespace from email addresses" do
      user = Fabricate.build(:user, email: " example@gmail.com ")
      user.valid?
      expect(user.email).to eq("example@gmail.com")
    end
  end

  describe "ip address validation" do
    it "validates ip_address for new users" do
      u = Fabricate.build(:user)
      AllowedIpAddressValidator
        .any_instance
        .expects(:validate_each)
        .with(u, :ip_address, u.ip_address)
      u.valid?
    end

    it "does not validate ip_address when updating an existing user" do
      u = Fabricate(:user)
      u.ip_address = "87.123.23.11"
      AllowedIpAddressValidator.any_instance.expects(:validate_each).never
      u.valid?
    end
  end

  describe "trust levels" do
    # NOTE be sure to use build to avoid db calls
    let(:user) { Fabricate.build(:user, trust_level: TrustLevel[0]) }

    it "sets to the default trust level setting" do
      SiteSetting.default_trust_level = TrustLevel[4]
      expect(User.new.trust_level).to eq(TrustLevel[4])
    end

    describe "has_trust_level?" do
      it "raises an error with an invalid level" do
        expect { user.has_trust_level?(:wat) }.to raise_error(InvalidTrustLevel)
      end

      it "is true for your basic level" do
        expect(user.has_trust_level?(TrustLevel[0])).to eq(true)
      end

      it "is false for a higher level" do
        expect(user.has_trust_level?(TrustLevel[2])).to eq(false)
      end

      it "is true if you exceed the level" do
        user.trust_level = TrustLevel[4]
        expect(user.has_trust_level?(TrustLevel[1])).to eq(true)
      end

      it "is true for an admin even with a low trust level" do
        user.trust_level = TrustLevel[0]
        user.admin = true
        expect(user.has_trust_level?(TrustLevel[1])).to eq(true)
      end
    end

    describe "moderator" do
      it "isn't a moderator by default" do
        expect(user.moderator?).to eq(false)
      end

      it "is a moderator if the user level is moderator" do
        user.moderator = true
        expect(user.has_trust_level?(TrustLevel[4])).to eq(true)
      end

      it "is staff if the user is an admin" do
        user.admin = true
        expect(user.staff?).to eq(true)
      end
    end
  end

  describe "staff and regular users" do
    subject(:user) { Fabricate.build(:user) }

    describe "#staff?" do
      it { is_expected.not_to be_staff }

      context "for a moderator user" do
        before { user.moderator = true }

        it { is_expected.to be_staff }
      end

      context "for an admin user" do
        before { user.admin = true }

        it { is_expected.to be_staff }
      end
    end

    describe "#regular?" do
      it { is_expected.to be_regular }

      context "for a moderator user" do
        before { user.moderator = true }

        it { is_expected.not_to be_regular }
      end

      context "for an admin user" do
        before { user.admin = true }

        it { is_expected.not_to be_regular }
      end
    end
  end

  describe "email_hash" do
    before_all { @user = Fabricate(:user) }

    it "should have a sane email hash" do
      expect(@user.email_hash).to match(/^[0-9a-f]{32}$/)
    end

    it "should use downcase email" do
      @user.email = "example@example.com"
      @user2 = Fabricate(:user)
      @user2.email = "ExAmPlE@eXaMpLe.com"

      expect(@user.email_hash).to eq(@user2.email_hash)
    end

    it "should trim whitespace before hashing" do
      @user.email = "example@example.com"
      @user2 = Fabricate(:user)
      @user2.email = " example@example.com "

      expect(@user.email_hash).to eq(@user2.email_hash)
    end
  end

  describe "associated_accounts" do
    it "should correctly find social associations" do
      user = Fabricate(:user)
      expect(user.associated_accounts).to eq([])

      UserAssociatedAccount.create(
        user_id: user.id,
        provider_name: "twitter",
        provider_uid: "1",
        info: {
          nickname: "sam",
        },
      )
      UserAssociatedAccount.create(
        user_id: user.id,
        provider_name: "facebook",
        provider_uid: "1234",
        info: {
          email: "test@example.com",
        },
      )
      UserAssociatedAccount.create(
        user_id: user.id,
        provider_name: "discord",
        provider_uid: "examplel123123",
        info: {
          nickname: "sam",
        },
      )
      UserAssociatedAccount.create(
        user_id: user.id,
        provider_name: "google_oauth2",
        provider_uid: "1",
        info: {
          email: "sam@sam.com",
        },
      )
      UserAssociatedAccount.create(
        user_id: user.id,
        provider_name: "github",
        provider_uid: "1",
        info: {
          nickname: "sam",
        },
      )

      user.reload
      expect(user.associated_accounts.map { |a| a[:name] }).to contain_exactly(
        "twitter",
        "facebook",
        "google_oauth2",
        "github",
        "discord",
      )
    end
  end

  describe ".is_singular_admin?" do
    it "returns true if user is singular admin" do
      admin = Fabricate(:admin)
      expect(admin.is_singular_admin?).to eq(true)
    end

    it "returns false if user is not the only admin" do
      admin = Fabricate(:admin)
      Fabricate(:admin)

      expect(admin.is_singular_admin?).to eq(false)
    end
  end

  describe "name heuristics" do
    it "is able to guess a decent name from an email" do
      expect(User.suggest_name("sam.saffron@gmail.com")).to eq("Sam Saffron")
    end

    it "is able to guess a decent name from username" do
      expect(User.suggest_name("@sam.saffron")).to eq("Sam Saffron")
    end

    it "is able to guess a decent name from name" do
      expect(User.suggest_name("sam saffron")).to eq("Sam Saffron")
    end
  end

  describe "username format" do
    fab!(:user)

    def assert_bad(username)
      user.username = username
      expect(user.valid?).to eq(false)
    end

    def assert_good(username)
      user.username = username
      expect(user.valid?).to eq(true)
    end

    it "should be SiteSetting.min_username_length chars or longer" do
      SiteSetting.min_username_length = 5
      assert_bad("abcd")
      assert_good("abcde")
    end

    context "when Unicode usernames are disabled" do
      before { SiteSetting.unicode_usernames = false }

      %w[
        first.last
        first
        first-last
        _name
        first_last
        mc.hammer_nose
        UPPERCASE
        sgif
      ].each do |username|
        it "allows #{username}" do
          assert_good(username)
        end
      end

      %w[
        traildot.
        has\ space
        double__underscore
        with%symbol
        Exclamation!
        @twitter
        my@email.com
        .tester
        sa$sy
        sam.json
        sam.xml
        sam.html
        sam.htm
        sam.js
        sam.woff
        sam.Png
        sam.gif
      ].each do |username|
        it "disallows #{username}" do
          assert_bad(username)
        end
      end
    end

    context "when Unicode usernames are enabled" do
      before { SiteSetting.unicode_usernames = true }

      %w[Джофрэй Джо.фрэй Джофр-эй Д.жофрэй 乔夫雷 乔夫_雷 _乔夫雷].each do |username|
        it "allows #{username}" do
          assert_good(username)
        end
      end

      %w[.Джофрэй Джофрэй. Джо\ фрэй Джоф__рэй 乔夫雷.js 乔夫雷. 乔夫%雷].each do |username|
        it "disallows #{username}" do
          assert_bad(username)
        end
      end
    end
  end

  describe "username uniqueness" do
    before_all do
      @user = Fabricate.build(:user)
      @user.save!
      @codinghorror = Fabricate.build(:coding_horror)
    end

    it "should not allow saving if username is reused" do
      @codinghorror.username = @user.username
      expect(@codinghorror.save).to eq(false)
    end

    it "should not allow saving if username is reused in different casing" do
      @codinghorror.username = @user.username.upcase
      expect(@codinghorror.save).to eq(false)
    end
  end

  describe ".username_available?" do
    it "returns true for a username that is available" do
      expect(User.username_available?("BruceWayne")).to eq(true)
    end

    it "returns false when a username is taken" do
      expect(User.username_available?(Fabricate(:user).username)).to eq(false)
    end

    it "returns false when a username is reserved" do
      SiteSetting.reserved_usernames = "test|donkey"
      expect(User.username_available?("tESt")).to eq(false)
    end

    it "returns true when reserved username is explicitly allowed" do
      SiteSetting.reserved_usernames = "test|donkey"

      expect(User.username_available?("tESt", nil, allow_reserved_username: true)).to eq(true)
    end

    it "returns true when username is associated to a staged user of the same email" do
      staged = Fabricate(:user, staged: true, email: "foo@bar.com")
      expect(User.username_available?(staged.username, staged.primary_email.email)).to eq(true)

      user = Fabricate(:user, email: "bar@foo.com")
      expect(User.username_available?(user.username, user.primary_email.email)).to eq(false)
    end

    it "returns false when a username equals an existing group name" do
      Fabricate(:group, name: "foo")
      expect(User.username_available?("Foo")).to eq(false)
    end

    context "with Unicode usernames enabled" do
      before { SiteSetting.unicode_usernames = true }

      it "returns false when the username is taken, but the Unicode normalization form is different" do
        Fabricate(:user, username: "L\u00F6we") # NFC
        requested_username = "Lo\u0308we" # NFD
        expect(User.username_available?(requested_username)).to eq(false)
      end

      it "returns false when the username is taken and the case differs" do
        Fabricate(:user, username: "LÖWE")
        expect(User.username_available?("löwe")).to eq(false)
      end
    end
  end

  describe ".reserved_username?" do
    it "returns true when a username is reserved" do
      SiteSetting.reserved_usernames = "test|donkey"

      expect(User.reserved_username?("donkey")).to eq(true)
      expect(User.reserved_username?("DonKey")).to eq(true)
      expect(User.reserved_username?("test")).to eq(true)
    end

    it "should not allow usernames matched against an expression" do
      SiteSetting.reserved_usernames = "test)|*admin*|foo*|*bar|abc.def|löwe|ka\u0308fer"

      expect(User.reserved_username?("test")).to eq(false)
      expect(User.reserved_username?("abc9def")).to eq(false)

      expect(User.reserved_username?("admin")).to eq(true)
      expect(User.reserved_username?("foo")).to eq(true)
      expect(User.reserved_username?("bar")).to eq(true)

      expect(User.reserved_username?("admi")).to eq(false)
      expect(User.reserved_username?("bar.foo")).to eq(false)
      expect(User.reserved_username?("foo.bar")).to eq(true)
      expect(User.reserved_username?("baz.bar")).to eq(true)

      expect(User.reserved_username?("LÖwe")).to eq(true)
      expect(User.reserved_username?("Lo\u0308we")).to eq(true) # NFD
      expect(User.reserved_username?("löwe")).to eq(true) # NFC
      expect(User.reserved_username?("käfer")).to eq(true) # NFC
    end
  end

  describe "email_validator" do
    it "should allow good emails" do
      user = Fabricate.build(:user, email: "good@gmail.com")
      expect(user).to be_valid
    end

    it "should reject some emails based on the blocked_email_domains site setting" do
      SiteSetting.blocked_email_domains = "mailinator.com"
      expect(Fabricate.build(:user, email: "notgood@mailinator.com")).not_to be_valid
      expect(Fabricate.build(:user, email: "mailinator@gmail.com")).to be_valid
    end

    it "should reject some emails based on the blocked_email_domains site setting" do
      SiteSetting.blocked_email_domains = "mailinator.com|trashmail.net"
      expect(Fabricate.build(:user, email: "notgood@mailinator.com")).not_to be_valid
      expect(Fabricate.build(:user, email: "notgood@trashmail.net")).not_to be_valid
      expect(Fabricate.build(:user, email: "mailinator.com@gmail.com")).to be_valid
    end

    it "should not reject partial matches" do
      SiteSetting.blocked_email_domains = "mail.com"
      expect(Fabricate.build(:user, email: "mailinator@gmail.com")).to be_valid
    end

    it "should reject some emails based on the blocked_email_domains site setting ignoring case" do
      SiteSetting.blocked_email_domains = "trashmail.net"
      expect(Fabricate.build(:user, email: "notgood@TRASHMAIL.NET")).not_to be_valid
    end

    it "should reject emails based on the blocked_email_domains site setting matching subdomain" do
      SiteSetting.blocked_email_domains = "domain.com"
      expect(Fabricate.build(:user, email: "notgood@sub.domain.com")).not_to be_valid
    end

    it "skips the blocklist if skip_email_validation is set" do
      SiteSetting.blocked_email_domains = "domain.com"
      user = Fabricate.build(:user, email: "notgood@sub.domain.com")
      user.skip_email_validation = true
      expect(user).to be_valid
    end

    it "blocklist should not reject developer emails" do
      Rails.configuration.stubs(:developer_emails).returns("developer@discourse.org")
      SiteSetting.blocked_email_domains = "discourse.org"
      expect(Fabricate.build(:user, email: "developer@discourse.org")).to be_valid
    end

    it "should not interpret a period as a wildcard" do
      SiteSetting.blocked_email_domains = "trashmail.net"
      expect(Fabricate.build(:user, email: "good@trashmailinet.com")).to be_valid
    end

    it "should not be used to validate existing records" do
      u = Fabricate(:user, email: "in_before_blocklisted@fakemail.com")
      SiteSetting.blocked_email_domains = "fakemail.com"
      expect(u).to be_valid
    end

    it "should be used when email is being changed" do
      SiteSetting.blocked_email_domains = "mailinator.com"
      u = Fabricate(:user, email: "good@gmail.com")
      u.email = "nope@mailinator.com"
      expect(u).not_to be_valid
    end

    it "allowlist should reject some emails based on the allowed_email_domains site setting" do
      SiteSetting.allowed_email_domains = "vaynermedia.com"
      user = Fabricate.build(:user, email: "notgood@mailinator.com")
      expect(user).not_to be_valid
      expect(user.errors.messages[:primary_email]).to include(I18n.t("user.email.not_allowed"))
      expect(Fabricate.build(:user, email: "sbauch@vaynermedia.com")).to be_valid
    end

    it "should reject some emails based on the allowed_email_domains site setting when allowlisting multiple domains" do
      SiteSetting.allowed_email_domains = "vaynermedia.com|gmail.com"
      expect(Fabricate.build(:user, email: "notgood@mailinator.com")).not_to be_valid
      expect(Fabricate.build(:user, email: "notgood@trashmail.net")).not_to be_valid
      expect(Fabricate.build(:user, email: "mailinator.com@gmail.com")).to be_valid
      expect(Fabricate.build(:user, email: "mailinator.com@vaynermedia.com")).to be_valid
    end

    it "should accept some emails based on the allowed_email_domains site setting ignoring case" do
      SiteSetting.allowed_email_domains = "vaynermedia.com"
      expect(Fabricate.build(:user, email: "good@VAYNERMEDIA.COM")).to be_valid
    end

    it "allowlist should accept developer emails" do
      Rails.configuration.stubs(:developer_emails).returns("developer@discourse.org")
      SiteSetting.allowed_email_domains = "awesome.org"
      expect(Fabricate.build(:user, email: "developer@discourse.org")).to be_valid
    end

    it "email allowlist should not be used to validate existing records" do
      u = Fabricate(:user, email: "in_before_allowlisted@fakemail.com")
      SiteSetting.blocked_email_domains = "vaynermedia.com"
      expect(u).to be_valid
    end

    it "email allowlist should be used when email is being changed" do
      SiteSetting.allowed_email_domains = "vaynermedia.com"
      u = Fabricate(:user, email: "good@vaynermedia.com")
      u.email = "nope@mailinator.com"
      expect(u).not_to be_valid
    end

    it "doesn't validate email address for staged users" do
      SiteSetting.allowed_email_domains = "foo.com"
      SiteSetting.blocked_email_domains = "bar.com"

      user = Fabricate.build(:user, staged: true, email: "foo@bar.com")

      expect(user.save).to eq(true)
    end
  end

  describe "passwords" do
    it "should not have an active account with a good password" do
      @user = Fabricate.build(:user, active: false)
      @user.password = "ilovepasta"
      @user.save!

      expect(@user.active).to eq(false)
      expect(@user.confirm_password?("ilovepasta")).to eq(true)

      email_token = Fabricate(:email_token, user: @user, email: "pasta@delicious.com")

      UserAuthToken.generate!(user_id: @user.id)

      @user.password = "passwordT0"
      @user.save!

      # must expire old token on password change
      expect(@user.user_auth_tokens.count).to eq(0)

      email_token.reload
      expect(email_token.expired).to eq(true)
    end
  end

  describe "previous_visit_at" do
    fab!(:user)
    let!(:first_visit_date) { Time.zone.now }
    let!(:second_visit_date) { 2.hours.from_now }
    let!(:third_visit_date) { 5.hours.from_now }

    before do
      SiteSetting.active_user_rate_limit_secs = 0
      SiteSetting.previous_visit_timeout_hours = 1
    end

    after { reset_last_seen_cache!(user) }

    it "should act correctly" do
      expect(user.previous_visit_at).to eq(nil)

      # first visit
      user.update_last_seen!(first_visit_date)
      expect(user.previous_visit_at).to eq(nil)

      # updated same time
      user.update_last_seen!(first_visit_date)
      user.reload
      expect(user.previous_visit_at).to eq(nil)

      # second visit
      user.update_last_seen!(second_visit_date)
      user.reload
      expect(user.previous_visit_at).to eq_time(first_visit_date)

      # third visit
      user.update_last_seen!(third_visit_date)
      user.reload
      expect(user.previous_visit_at).to eq_time(second_visit_date)
    end
  end

  describe "update_last_seen!" do
    fab!(:user)
    let!(:first_visit_date) { Time.zone.now }
    let!(:second_visit_date) { 2.hours.from_now }

    after { reset_last_seen_cache!(user) }

    it "should update the last seen value" do
      expect(user.last_seen_at).to eq nil
      user.update_last_seen!(first_visit_date)
      expect(user.reload.last_seen_at).to eq_time(first_visit_date)
    end

    it "should update the first seen value if it doesn't exist" do
      user.update_last_seen!(first_visit_date)
      expect(user.reload.first_seen_at).to eq_time(first_visit_date)
    end

    it "should not update the first seen value if it doesn't exist" do
      user.update_last_seen!(first_visit_date)
      user.update_last_seen!(second_visit_date)
      expect(user.reload.first_seen_at).to eq_time(first_visit_date)
    end
  end

  describe "update_timezone_if_missing" do
    let(:timezone) { nil }

    it "does nothing if timezone is nil" do
      user.update_timezone_if_missing(timezone)
      expect(user.reload.user_option.timezone).to eq(nil)
    end

    context "if timezone is provided" do
      context "if the timezone is valid" do
        let(:timezone) { "Australia/Melbourne" }
        context "if no timezone exists on user option" do
          it "sets the timezone for the user" do
            user.update_timezone_if_missing(timezone)
            expect(user.reload.user_option.timezone).to eq(timezone)
          end
        end
      end

      context "if the timezone is not valid" do
        let(:timezone) { "Jupiter" }
        context "if no timezone exists on user option" do
          it "does not set the timezone for the user" do
            user.update_timezone_if_missing(timezone)
            expect(user.reload.user_option.timezone).to eq(nil)
          end
        end
      end

      context "if a timezone already exists on user option" do
        before { user.user_option.update_attribute(:timezone, "America/Denver") }

        it "does not update the timezone" do
          user.update_timezone_if_missing(timezone)
          expect(user.reload.user_option.timezone).to eq("America/Denver")
        end
      end
    end
  end

  describe "last_seen_at" do
    fab!(:user)

    it "should have a blank last seen on creation" do
      expect(user.last_seen_at).to eq(nil)
    end

    it "should have 0 for days_visited" do
      expect(user.user_stat.days_visited).to eq(0)
    end

    describe "with no previous values" do
      after do
        reset_last_seen_cache!(user)
        unfreeze_time
        reset_last_seen_cache!(user)
      end

      it "updates last_seen_at" do
        date = freeze_time
        user.update_last_seen!

        expect(user.last_seen_at).to eq_time(date)
      end

      it "should have 0 for days_visited" do
        user.update_last_seen!
        user.reload

        expect(user.user_stat.days_visited).to eq(1)
      end

      it "should log a user_visit with the date" do
        date = freeze_time
        user.update_last_seen!

        expect(user.user_visits.first.visited_at).to eq_time(date.to_date)
      end

      context "when called twice" do
        it "doesn't increase days_visited twice" do
          freeze_time
          user.update_last_seen!
          user.update_last_seen!
          user.reload

          expect(user.user_stat.days_visited).to eq(1)
        end
      end

      describe "after 3 days" do
        it "should log a second visited_at record when we log an update later" do
          user.update_last_seen!
          freeze_time(3.days.from_now)
          user.update_last_seen!

          expect(user.user_visits.count).to eq(2)
        end
      end
    end
  end

  describe "email_confirmed?" do
    fab!(:user)

    context "when email has not been confirmed yet" do
      it "should return false" do
        expect(user.email_confirmed?).to eq(false)
      end
    end

    context "when email has been confirmed" do
      it "should return true" do
        token = Fabricate(:email_token, user: user)
        EmailToken.confirm(token.token)
        expect(user.email_confirmed?).to eq(true)
      end
    end

    context "when user has no email tokens for some reason" do
      it "should return false" do
        user.email_tokens.each { |t| t.destroy }
        user.reload
        expect(user.email_confirmed?).to eq(true)
      end
    end
  end

  describe "flag_linked_posts_as_spam" do
    fab!(:user) { Fabricate(:user, refresh_auto_groups: true) }
    fab!(:admin)
    fab!(:post) do
      PostCreator.new(
        user,
        title: "this topic contains spam",
        raw: "this post has a link: http://discourse.org",
      ).create
    end
    fab!(:another_post) do
      PostCreator.new(
        user,
        title: "this topic also contains spam",
        raw: "this post has a link: http://discourse.org/asdfa",
      ).create
    end
    fab!(:post_without_link) do
      PostCreator.new(
        user,
        title: "this topic shouldn't be spam",
        raw: "this post has no links in it.",
      ).create
    end

    it "has flagged all the user's posts as spam" do
      user.flag_linked_posts_as_spam

      post.reload
      expect(post.spam_count).to eq(1)

      another_post.reload
      expect(another_post.spam_count).to eq(1)

      post_without_link.reload
      expect(post_without_link.spam_count).to eq(0)

      # It doesn't raise an exception if called again
      user.flag_linked_posts_as_spam
    end

    it "does not flags post as spam if the previous flag for that post was disagreed" do
      results = user.flag_linked_posts_as_spam

      expect(post.reload.spam_count).to eq(1)

      results.each { |result| result.reviewable.perform(admin, :disagree) }

      user.flag_linked_posts_as_spam

      expect(post.reload.spam_count).to eq(0)
    end
  end

  describe "#readable_name" do
    context "when name is missing" do
      it "returns just the username" do
        expect(Fabricate(:user, username: "foo", name: nil).readable_name).to eq("foo")
      end
    end
    context "when name and username are identical" do
      it "returns just the username" do
        expect(Fabricate(:user, username: "foo", name: "foo").readable_name).to eq("foo")
      end
    end
    context "when name and username are not identical" do
      it "returns the name and username" do
        expect(Fabricate(:user, username: "foo", name: "Bar Baz").readable_name).to eq(
          "Bar Baz (foo)",
        )
      end
    end
  end

  describe ".find_by_username_or_email" do
    it "finds users" do
      bob = Fabricate(:user, username: "bob", email: "bob@example.com")
      found_user = User.find_by_username_or_email("Bob")
      expect(found_user).to eq bob

      found_user = User.find_by_username_or_email("bob@Example.com")
      expect(found_user).to eq bob

      found_user = User.find_by_username_or_email("Bob@Example.com")
      expect(found_user).to eq bob

      found_user = User.find_by_username_or_email("bob1")
      expect(found_user).to be_nil

      found_user = User.find_by_email("bob@Example.com")
      expect(found_user).to eq bob

      found_user = User.find_by_email("BOB@Example.com")
      expect(found_user).to eq bob

      found_user = User.find_by_email("bob")
      expect(found_user).to be_nil

      found_user = User.find_by_username("bOb")
      expect(found_user).to eq bob
    end

    it "finds users with Unicode username" do
      SiteSetting.unicode_usernames = true
      user = Fabricate(:user, username: "löwe")

      expect(User.find_by_username("LÖWE")).to eq(user) # NFC
      expect(User.find_by_username("LO\u0308WE")).to eq(user) # NFD
      expect(User.find_by_username("lo\u0308we")).to eq(user) # NFD
    end
  end

  describe "#new_user_posting_on_first_day?" do
    def test_user?(opts = {})
      Fabricate.build(
        :user,
        { created_at: Time.zone.now }.merge(opts),
      ).new_user_posting_on_first_day?
    end

    it "handles when user has never posted" do
      expect(test_user?).to eq(true)
      expect(test_user?(moderator: true)).to eq(false)
      expect(test_user?(trust_level: TrustLevel[2])).to eq(false)
      expect(test_user?(created_at: 2.days.ago)).to eq(true)
    end

    it "is true for a user who posted less than 24 hours ago but was created over 1 day ago" do
      u = Fabricate(:user, created_at: 28.hours.ago)
      u.user_stat.first_post_created_at = 1.hour.ago
      expect(u.new_user_posting_on_first_day?).to eq(true)
    end

    it "is false if first post was more than 24 hours ago" do
      u = Fabricate(:user, created_at: 28.hours.ago)
      u.user_stat.first_post_created_at = 25.hours.ago
      expect(u.new_user_posting_on_first_day?).to eq(false)
    end

    it "considers trust level 0 users as new users unconditionally" do
      u = Fabricate(:user, created_at: 28.hours.ago, trust_level: TrustLevel[0])
      u.user_stat.first_post_created_at = 25.hours.ago
      expect(u.new_user_posting_on_first_day?).to eq(true)
    end
  end

  describe "posted too much in topic" do
    let!(:user) { Fabricate(:user, trust_level: TrustLevel[0]) }
    let!(:topic) { Fabricate(:post).topic }

    before do
      # To make testing easier, say 1 reply is too much
      SiteSetting.newuser_max_replies_per_topic = 1
      UserActionManager.enable
    end

    context "for a user who didn't create the topic" do
      let!(:post) { Fabricate(:post, topic: topic, user: user) }

      it "does not return true for staff" do
        user.stubs(:staff?).returns(true)
        expect(user.posted_too_much_in_topic?(topic.id)).to eq(false)
      end

      it "returns true when the user has posted too much" do
        expect(user.posted_too_much_in_topic?(topic.id)).to eq(true)
      end

      context "with a reply" do
        before do
          Jobs.run_immediately!
          PostCreator.new(
            Fabricate(:user),
            raw: "whatever this is a raw post",
            topic_id: topic.id,
            reply_to_post_number: post.post_number,
          ).create
        end

        it "resets the `posted_too_much` threshold" do
          expect(user.posted_too_much_in_topic?(topic.id)).to eq(false)
        end
      end
    end

    it "returns false for a user who created the topic" do
      topic_user = topic.user
      topic_user.trust_level = TrustLevel[0]
      expect(topic.user.posted_too_much_in_topic?(topic.id)).to eq(false)
    end
  end

  describe "#find_email" do
    fab!(:user) { Fabricate(:user, email: "bob@example.com") }

    context "when email is exists in the email logs" do
      before { user.stubs(:last_sent_email_address).returns("bob@lastemail.com") }

      it "returns email from the logs" do
        expect(user.find_email).to eq("bob@lastemail.com")
      end
    end

    context "when email does not exist in the email logs" do
      before { user.stubs(:last_sent_email_address).returns(nil) }

      it "fetches the user's email" do
        expect(user.find_email).to eq(user.email)
      end
    end
  end

  describe "#gravatar_template" do
    it "returns a gravatar based template" do
      expect(User.gravatar_template("em@il.com")).to eq(
        "//www.gravatar.com/avatar/6dc2fde946483a1d8a84b89345a1b638.png?s={size}&r=pg&d=identicon",
      )
    end
  end

  describe "#custom_gravatar" do
    before { SiteSetting.gravatar_base_url = "seccdn.libravatar.org" }

    it "returns a gravatar url as set in the settings" do
      expect(User.gravatar_template("em@il.com")).to eq(
        "//seccdn.libravatar.org/avatar/6dc2fde946483a1d8a84b89345a1b638.png?s={size}&r=pg&d=identicon",
      )
    end
  end

  describe "#letter_avatar_color" do
    before { SiteSetting.restrict_letter_avatar_colors = "2F70AC|ED207B|AAAAAA|77FF33" }

    it "returns custom color if restrict_letter_avatar_colors site setting is set" do
      expect(User.letter_avatar_color("username_one")).to eq("2F70AC")
      expect(User.letter_avatar_color("username_two")).to eq("ED207B")
      expect(User.letter_avatar_color("username_three")).to eq("AAAAAA")
      expect(User.letter_avatar_color("username_four")).to eq("77FF33")
    end
  end

  describe ".small_avatar_url" do
    let(:user) { build(:user, username: "Sam") }

    it "returns a 45-pixel-wide avatar" do
      SiteSetting.external_system_avatars_enabled = false
      expect(user.small_avatar_url).to eq(
        "//test.localhost/letter_avatar/sam/45/#{LetterAvatar.version}.png",
      )

      SiteSetting.external_system_avatars_enabled = true
      expect(user.small_avatar_url).to eq(
        "//test.localhost/letter_avatar_proxy/v4/letter/s/5f9b8f/45.png",
      )
    end
  end

  describe ".avatar_template_url" do
    let(:user) { build(:user, uploaded_avatar_id: 99, username: "Sam") }

    it "returns a schemaless avatar template with correct id" do
      expect(user.avatar_template_url).to eq(
        "//test.localhost/user_avatar/test.localhost/sam/{size}/99_#{OptimizedImage::VERSION}.png",
      )
    end

    it "returns a schemaless cdn-based avatar template" do
      Rails.configuration.action_controller.stubs(:asset_host).returns("http://my.cdn.com")
      expect(user.avatar_template_url).to eq(
        "//my.cdn.com/user_avatar/test.localhost/sam/{size}/99_#{OptimizedImage::VERSION}.png",
      )
    end
  end

  describe "#avatar_template" do
    it "uses the small logo if the user is the system user" do
      logo_small_url = Discourse.store.cdn_url(SiteSetting.logo_small.url)

      expect(Discourse.system_user.avatar_template).to eq(logo_small_url)
    end

    it "uses the system user avatar if the logo is nil" do
      SiteSetting.logo_small = nil
      system_user = Discourse.system_user
      expected = User.avatar_template(system_user.username, system_user.uploaded_avatar_id)

      expect(Discourse.system_user.avatar_template).to eq(expected)
    end

    it "uses the regular avatar for other users" do
      user = Fabricate(:user)
      expected = User.avatar_template(user.username, user.uploaded_avatar_id)

      expect(user.avatar_template).to eq(expected)
    end
  end

  describe "update_posts_read!" do
    context "with a UserVisit record" do
      fab!(:user)
      let!(:now) { Time.zone.now }
      before { user.update_last_seen!(now) }
      after { reset_last_seen_cache!(user) }

      it "with existing UserVisit record, increments the posts_read value" do
        expect {
          user_visit = user.update_posts_read!(2)
          expect(user_visit.posts_read).to eq(2)
        }.to_not change { UserVisit.count }
      end

      it "with no existing UserVisit record, creates a new UserVisit record and increments the posts_read count" do
        expect {
          user_visit = user.update_posts_read!(3, at: 5.days.ago)
          expect(user_visit.posts_read).to eq(3)
        }.to change { UserVisit.count }.by(1)
      end
    end
  end

  describe "primary_group_id" do
    fab!(:user)

    it "has no primary_group_id by default" do
      expect(user.primary_group_id).to eq(nil)
    end

    context "when the user has a group" do
      before do
        group.usernames = user.username
        group.save
        user.primary_group_id = group.id
        user.save
        user.reload
      end

      it "should allow us to use it as a primary group" do
        expect(user.primary_group_id).to eq(group.id)

        # If we remove the user from the group
        group.usernames = ""
        group.save

        # It should unset it from the primary_group_id
        user.reload
        expect(user.primary_group_id).to eq(nil)
      end
    end
  end

  describe "automatic avatar creation" do
    it "sets a system avatar for new users" do
      SiteSetting.external_system_avatars_enabled = false

      u = User.create!(username: "bob", email: "bob@bob.com")
      u.reload
      expect(u.uploaded_avatar_id).to eq(nil)
      expect(u.avatar_template).to eq("/letter_avatar/bob/{size}/#{LetterAvatar.version}.png")
    end
  end

  describe "custom fields" do
    it "allows modification of custom fields" do
      user = Fabricate(:user)

      expect(user.custom_fields["a"]).to eq(nil)

      user.custom_fields["bob"] = "marley"
      user.custom_fields["jack"] = "black"
      user.save

      user = User.find(user.id)

      expect(user.custom_fields["bob"]).to eq("marley")
      expect(user.custom_fields["jack"]).to eq("black")

      user.custom_fields.delete("bob")
      user.custom_fields["jack"] = "jill"

      user.save
      user = User.find(user.id)

      expect(user.custom_fields).to eq("jack" => "jill")
    end
  end

  describe "refresh_avatar" do
    it "enqueues the update_gravatar job when automatically downloading gravatars" do
      SiteSetting.automatically_download_gravatars = true

      user = Fabricate(:user)

      expect_enqueued_with(job: :update_gravatar, args: { user_id: user.id }) do
        user.refresh_avatar
      end
    end
  end

  describe "real users" do
    it "should find system user if you allow it" do
      ids =
        User
          .real(allowed_bot_user_ids: [Discourse.system_user.id])
          .where(id: Discourse.system_user.id)
          .pluck(:id)
      expect(ids).to eq([Discourse.system_user.id])
    end
  end

  describe "#purge_unactivated" do
    fab!(:user) { Fabricate(:user, refresh_auto_groups: true) }
    fab!(:admin) { Fabricate(:user) }
    fab!(:unactivated) { Fabricate(:user, active: false) }
    fab!(:unactivated_old) { Fabricate(:user, active: false, created_at: 1.month.ago) }
    fab!(:unactivated_old_with_system_pm) do
      Fabricate(:user, active: false, created_at: 2.months.ago)
    end
    fab!(:unactivated_old_with_human_pm) do
      Fabricate(:user, active: false, created_at: 2.months.ago)
    end
    fab!(:unactivated_old_with_post) do
      Fabricate(:user, active: false, created_at: 1.month.ago, refresh_auto_groups: true)
    end
    fab!(:unactivated_by_admin) do
      Fabricate(:user, active: false, created_at: 1.month.ago, refresh_auto_groups: true)
    end
    fab!(:unactivated_by_system) do
      Fabricate(:user, active: false, created_at: 1.month.ago, refresh_auto_groups: true)
    end

    before do
      PostCreator.new(
        Discourse.system_user,
        title: "Welcome to our Discourse",
        raw: "This is a welcome message",
        archetype: Archetype.private_message,
        target_usernames: [unactivated_old_with_system_pm.username],
      ).create

      PostCreator.new(
        user,
        title: "Welcome to our Discourse",
        raw: "This is a welcome message",
        archetype: Archetype.private_message,
        target_usernames: [unactivated_old_with_human_pm.username],
      ).create

      PostCreator.new(
        unactivated_old_with_post,
        title: "Test topic from a user",
        raw: "This is a sample message",
      ).create

      UserHistory.create!(
        action: UserHistory.actions[:deactivate_user],
        acting_user: admin,
        target_user: unactivated_by_admin,
      )
      UserHistory.create!(
        action: UserHistory.actions[:deactivate_user],
        acting_user: Discourse.system_user,
        target_user: unactivated_by_system,
      )
    end

    it "should only remove old, unactivated users that haven't been manually deactivated" do
      User.purge_unactivated
      expect(User.real.all).to match_array(
        [
          user,
          unactivated,
          unactivated_old_with_human_pm,
          unactivated_old_with_post,
          unactivated_by_admin,
          unactivated_by_system,
          admin,
        ],
      )
    end

    it "does nothing if purge_unactivated_users_grace_period_days is 0" do
      SiteSetting.purge_unactivated_users_grace_period_days = 0
      User.purge_unactivated
      expect(User.real.all).to match_array(
        [
          user,
          unactivated,
          unactivated_old,
          unactivated_old_with_system_pm,
          unactivated_old_with_human_pm,
          unactivated_old_with_post,
          unactivated_by_admin,
          unactivated_by_system,
          admin,
        ],
      )
    end
  end

  describe "hash_passwords" do
    let(:too_long) { "x" * (User.max_password_length + 1) }

    def hash(password, salt, algorithm = User::TARGET_PASSWORD_ALGORITHM)
      User.new.send(:hash_password, password, salt, algorithm)
    end

    it "returns the same hash for the same password and salt" do
      expect(hash("poutine", "gravy")).to eq(hash("poutine", "gravy"))
    end

    it "returns a different hash for the same salt and different password" do
      expect(hash("poutine", "gravy")).not_to eq(hash("fries", "gravy"))
    end

    it "returns a different hash for the same password and different salt" do
      expect(hash("poutine", "gravy")).not_to eq(hash("poutine", "cheese"))
    end

    it "raises an error when passwords are too long" do
      expect { hash(too_long, "gravy") }.to raise_error(StandardError)
    end

    it "uses the target algorithm for new users" do
      expect(user.password_algorithm).to eq(User::TARGET_PASSWORD_ALGORITHM)
    end

    it "can use an older algorithm to verify existing passwords, then upgrade" do
      old_algorithm = "$pbkdf2-sha256$i=5,l=32$"
      expect(old_algorithm).not_to eq(User::TARGET_PASSWORD_ALGORITHM)

      password = "poutine"
      old_hash = hash(password, user.salt, old_algorithm)

      user.update!(password_algorithm: old_algorithm, password_hash: old_hash)

      expect(user.password_algorithm).to eq(old_algorithm)
      expect(user.password_hash).to eq(old_hash)

      # With an incorrect attempt, should return false with no side effects
      expect(user.confirm_password?("notthepassword")).to eq(false)
      expect(user.password_algorithm).to eq(old_algorithm)
      expect(user.password_hash).to eq(old_hash)

      # Should correctly verify against old algorithm
      expect(user.confirm_password?(password)).to eq(true)

      # Auto-upgrades to new algorithm
      expected_new_hash = hash(password, user.salt, User::TARGET_PASSWORD_ALGORITHM)
      expect(user.password_algorithm).to eq(User::TARGET_PASSWORD_ALGORITHM)
      expect(user.password_hash).to eq(expected_new_hash)

      # And persists to the db
      user.reload
      expect(user.password_algorithm).to eq(User::TARGET_PASSWORD_ALGORITHM)
      expect(user.password_hash).to eq(expected_new_hash)

      # And can still log in
      expect(user.confirm_password?(password)).to eq(true)
    end
  end

  describe "automatic group membership" do
    fab!(:group) do
      Fabricate(
        :group,
        automatic_membership_email_domains: "bar.com|wat.com",
        grant_trust_level: 1,
        title: "bars and wats",
        primary_group: true,
      )
    end

    it "doesn't automatically add staged users" do
      staged_user = Fabricate(:user, active: true, staged: true, email: "wat@wat.com")
      EmailToken.confirm(Fabricate(:email_token, user: staged_user).token)
      group.reload
      expect(group.users.include?(staged_user)).to eq(false)
    end

    it "is automatically added to a group when the email matches" do
      user = Fabricate(:user, active: true, email: "foo@bar.com")
      EmailToken.confirm(Fabricate(:email_token, user: user).token)
      group.reload
      expect(group.users.include?(user)).to eq(true)

      group_history = GroupHistory.last

      expect(group_history.action).to eq(GroupHistory.actions[:add_user_to_group])
      expect(group_history.acting_user).to eq(Discourse.system_user)
      expect(group_history.target_user).to eq(user)
    end

    it "is automatically added to a group when the email matches the SSO record" do
      user = Fabricate(:user, active: true, email: "sso@bar.com")
      user.create_single_sign_on_record(
        external_id: 123,
        external_email: "sso@bar.com",
        last_payload: "",
      )
      user.set_automatic_groups
      group.reload
      expect(group.users.include?(user)).to eq(true)
    end

    it "get attributes from the group" do
      user =
        Fabricate.build(
          :user,
          active: true,
          trust_level: 0,
          email: "foo@bar.com",
          password: "strongpassword4Uguys",
        )

      user.password_required!
      user.save!
      EmailToken.confirm(Fabricate(:email_token, user: user).token)
      user.reload

      expect(user.title).to eq("bars and wats")
      expect(user.trust_level).to eq(1)
      expect(user.manual_locked_trust_level).to be_nil
      expect(user.group_granted_trust_level).to eq(1)
    end
  end

  describe "staff info" do
    fab!(:user) { Fabricate(:user, refresh_auto_groups: true) }
    fab!(:moderator)

    describe "#number_of_flags_given" do
      it "doesn't count disagreed flags" do
        post_agreed = Fabricate(:post)
        PostActionCreator
          .inappropriate(user, post_agreed)
          .reviewable
          .perform(moderator, :agree_and_keep)

        post_deferred = Fabricate(:post)
        PostActionCreator
          .inappropriate(user, post_deferred)
          .reviewable
          .perform(moderator, :ignore_and_do_nothing)

        post_disagreed = Fabricate(:post)
        PostActionCreator
          .inappropriate(user, post_disagreed)
          .reviewable
          .perform(moderator, :disagree)

        expect(user.number_of_flags_given).to eq(2)
      end
    end

    describe "number_of_deleted_posts" do
      it "counts all the posts" do
        # at least 1 "unchanged" post
        Fabricate(:post, user: user)

        post_deleted_by_moderator = Fabricate(:post, user: user)
        PostDestroyer.new(moderator, post_deleted_by_moderator).destroy

        post_deleted_by_user = Fabricate(:post, user: user, post_number: 2)
        PostDestroyer.new(user, post_deleted_by_user).destroy

        # fake stub deletion
        post_deleted_by_user.update_columns(updated_at: 2.days.ago)
        PostDestroyer.destroy_stubs

        expect(user.number_of_deleted_posts).to eq(2)
      end
    end

    describe "#number_of_rejected_posts" do
      it "counts rejected posts" do
        Fabricate(
          :reviewable_queued_post,
          target_created_by: user,
          status: Reviewable.statuses[:rejected],
        )

        expect(user.number_of_rejected_posts).to eq(1)
      end

      it "ignore non-rejected posts" do
        Fabricate(
          :reviewable_queued_post,
          target_created_by: user,
          status: Reviewable.statuses[:approved],
        )

        expect(user.number_of_rejected_posts).to eq(0)
      end
    end

    describe "#number_of_flagged_posts" do
      it "counts flagged posts from the user" do
        Fabricate(:reviewable_flagged_post, target_created_by: user)

        expect(user.number_of_flagged_posts).to eq(1)
      end

      it "ignores flagged posts from another user" do
        Fabricate(:reviewable_flagged_post, target_created_by: Fabricate(:user))

        expect(user.number_of_flagged_posts).to eq(0)
      end
    end
  end

  describe "new_user?" do
    it "correctly detects new user" do
      user = User.new(created_at: Time.now, trust_level: TrustLevel[0])

      expect(user.new_user?).to eq(true)

      user.trust_level = TrustLevel[1]

      expect(user.new_user?).to eq(true)

      user.trust_level = TrustLevel[2]

      expect(user.new_user?).to eq(false)

      user.trust_level = TrustLevel[0]
      user.moderator = true

      expect(user.new_user?).to eq(false)
    end
  end

  context "when user preferences are overridden" do
    fab!(:category0) { Fabricate(:category) }
    fab!(:category1) { Fabricate(:category) }
    fab!(:category2) { Fabricate(:category) }
    fab!(:category3) { Fabricate(:category) }
    fab!(:category4) { Fabricate(:category) }

    before do
      SiteSetting.default_email_digest_frequency = 1440 # daily
      SiteSetting.default_email_level = UserOption.email_level_types[:never]
      SiteSetting.default_email_messages_level = UserOption.email_level_types[:never]
      SiteSetting.disable_mailing_list_mode = false
      SiteSetting.default_email_mailing_list_mode = true

      SiteSetting.default_other_new_topic_duration_minutes = -1 # not viewed
      SiteSetting.default_other_auto_track_topics_after_msecs = 0 # immediately
      SiteSetting.default_other_notification_level_when_replying = 3 # immediately
      SiteSetting.default_other_external_links_in_new_tab = true
      SiteSetting.default_other_enable_quoting = false
      SiteSetting.default_other_dynamic_favicon = true
      SiteSetting.default_other_skip_new_user_tips = true

      SiteSetting.default_hide_profile_and_presence = true
      SiteSetting.default_topics_automatic_unpin = false

      SiteSetting.default_categories_watching = category0.id.to_s
      SiteSetting.default_categories_tracking = category1.id.to_s
      SiteSetting.default_categories_muted = category2.id.to_s
      SiteSetting.default_categories_watching_first_post = category3.id.to_s
      SiteSetting.default_categories_normal = category4.id.to_s
    end

    it "has overridden preferences" do
      user = Fabricate(:user)
      options = user.user_option
      expect(options.mailing_list_mode).to eq(true)
      expect(options.digest_after_minutes).to eq(1440)
      expect(options.email_level).to eq(UserOption.email_level_types[:never])
      expect(options.email_messages_level).to eq(UserOption.email_level_types[:never])
      expect(options.external_links_in_new_tab).to eq(true)
      expect(options.enable_quoting).to eq(false)
      expect(options.dynamic_favicon).to eq(true)
      expect(options.skip_new_user_tips).to eq(true)
      expect(options.hide_profile_and_presence).to eq(true)
      expect(options.automatically_unpin_topics).to eq(false)
      expect(options.new_topic_duration_minutes).to eq(-1)
      expect(options.auto_track_topics_after_msecs).to eq(0)
      expect(options.notification_level_when_replying).to eq(3)

      expect(CategoryUser.lookup(user, :watching).pluck(:category_id)).to eq([category0.id])
      expect(CategoryUser.lookup(user, :tracking).pluck(:category_id)).to eq([category1.id])
      expect(CategoryUser.lookup(user, :muted).pluck(:category_id)).to eq([category2.id])
      expect(CategoryUser.lookup(user, :watching_first_post).pluck(:category_id)).to eq(
        [category3.id],
      )
      expect(CategoryUser.lookup(user, :regular).pluck(:category_id)).to eq([category4.id])
    end

    it "does not error on duplicate categories for set_default_categories_preferences" do
      SiteSetting.default_categories_normal = category4.id.to_s + "|" + category4.id.to_s
      user = nil
      expect { user = Fabricate(:user, trust_level: 1) }.not_to raise_error
      expect(CategoryUser.lookup(user, :normal).pluck(:category_id)).to include(category4.id)
    end

    it "does not set category preferences for staged users" do
      user = Fabricate(:user, staged: true)
      expect(CategoryUser.lookup(user, :watching).pluck(:category_id)).to eq([])
      expect(CategoryUser.lookup(user, :tracking).pluck(:category_id)).to eq([])
      expect(CategoryUser.lookup(user, :muted).pluck(:category_id)).to eq([])
      expect(CategoryUser.lookup(user, :watching_first_post).pluck(:category_id)).to eq([])
      expect(CategoryUser.lookup(user, :regular).pluck(:category_id)).to eq([])
    end
  end

  context UserOption do
    it "Creates a UserOption row when a user record is created and destroys once done" do
      user = Fabricate(:user)
      expect(user.user_option.email_level).to eq(UserOption.email_level_types[:only_when_away])

      user_id = user.id
      user.destroy!
      expect(UserOption.find_by(user_id: user_id)).to eq(nil)
    end
  end

  describe "#logged_out" do
    fab!(:user)

    it "should publish the right message" do
      message = MessageBus.track_publish("/logout/#{user.id}") { user.logged_out }.first

      expect(message.data).to eq(user.id)
    end
  end

  describe "#read_first_notification?" do
    fab!(:user) { Fabricate(:user, trust_level: TrustLevel[0]) }
    fab!(:notification) { Fabricate(:private_message_notification) }

    describe "when first notification has not been seen" do
      it "should return the right value" do
        expect(user.read_first_notification?).to eq(false)
      end
    end

    describe "when first notification has been seen" do
      it "should return the right value" do
        user.update!(seen_notification_id: notification.id)
        expect(user.reload.read_first_notification?).to eq(true)
      end
    end

    describe "when user is trust level 1" do
      it "should return the right value" do
        user.update!(trust_level: TrustLevel[1])

        expect(user.read_first_notification?).to eq(false)
      end
    end

    describe "when user skipped new user tips" do
      it "should return the right value" do
        user.user_option.update!(skip_new_user_tips: true)

        expect(user.read_first_notification?).to eq(true)
      end
    end
  end

  describe "#featured_user_badges" do
    fab!(:user)
    let!(:user_badge_tl1) do
      UserBadge.create(
        badge_id: Badge::BasicUser,
        user: user,
        granted_by: Discourse.system_user,
        granted_at: Time.now,
      )
    end
    let!(:user_badge_tl2) do
      UserBadge.create(
        badge_id: Badge::Member,
        user: user,
        granted_by: Discourse.system_user,
        granted_at: Time.now,
      )
    end
    let!(:user_badge_like) do
      UserBadge.create(
        badge_id: Badge::FirstLike,
        user: user,
        granted_by: Discourse.system_user,
        granted_at: Time.now,
      )
    end

    it "should display badges in the correct order" do
      expect(user.featured_user_badges.map(&:badge_id)).to eq(
        [Badge::Member, Badge::FirstLike, Badge::BasicUser],
      )
    end
  end

  describe ".clear_global_notice_if_needed" do
    fab!(:user)
    fab!(:admin)

    before do
      SiteSetting.has_login_hint = true
      SiteSetting.global_notice = "some notice"
    end

    it "doesn't clear the login hint when a regular user is saved" do
      user.save
      expect(SiteSetting.has_login_hint).to eq(true)
      expect(SiteSetting.global_notice).to eq("some notice")
    end

    it "doesn't clear the notice when a system user is saved" do
      Discourse.system_user.save
      expect(SiteSetting.has_login_hint).to eq(true)
      expect(SiteSetting.global_notice).to eq("some notice")
    end

    it "clears the notice when the admin is saved" do
      admin.save
      expect(SiteSetting.has_login_hint).to eq(false)
      expect(SiteSetting.global_notice).to eq("")
    end
  end

  describe ".human_users" do
    it "should only return users with a positive primary key" do
      Fabricate(:bot)
      user = Fabricate(:user)

      expect(User.human_users).to eq([user])
    end
  end

  describe ".not_staged" do
    let!(:user0) { Fabricate(:user, staged: true) }
    let!(:user1) { Fabricate(:user) }

    it "doesn't return staged users" do
      expect(User.not_staged).to_not include(user0)
      expect(User.not_staged).to include(user1)
    end
  end

  describe "#publish_notifications_state" do
    it "should publish the right message sorted by ID desc" do
      notification = Fabricate(:notification, user: user)
      notification2 = Fabricate(:notification, user: user, read: true)

      message =
        MessageBus
          .track_publish("/notification/#{user.id}") { user.publish_notifications_state }
          .first

      expect(message.data[:recent]).to eq([[notification2.id, true], [notification.id, false]])
    end

    it "floats the unread high priority notifications to the top" do
      notification = Fabricate(:notification, user: user)
      notification2 = Fabricate(:notification, user: user, read: true)
      notification3 =
        Fabricate(
          :notification,
          user: user,
          notification_type: Notification.types[:private_message],
        )
      notification4 =
        Fabricate(
          :notification,
          user: user,
          notification_type: Notification.types[:bookmark_reminder],
        )

      message =
        MessageBus
          .track_publish("/notification/#{user.id}") { user.publish_notifications_state }
          .first

      expect(message.data[:recent]).to eq(
        [
          [notification4.id, false],
          [notification3.id, false],
          [notification2.id, true],
          [notification.id, false],
        ],
      )
    end

    it "has the correct counts" do
      _notification = Fabricate(:notification, user: user)
      _notification2 = Fabricate(:notification, user: user, read: true)
      _notification3 =
        Fabricate(
          :notification,
          user: user,
          notification_type: Notification.types[:private_message],
        )
      _notification4 =
        Fabricate(
          :notification,
          user: user,
          notification_type: Notification.types[:bookmark_reminder],
        )

      message =
        MessageBus
          .track_publish("/notification/#{user.id}") { user.publish_notifications_state }
          .first

      expect(message.data[:unread_notifications]).to eq(1)
      expect(message.data[:unread_high_priority_notifications]).to eq(2)
    end

    it "does not publish to the /notification channel for users who have not been seen in > 30 days" do
      _notification = Fabricate(:notification, user: user)
      _notification2 = Fabricate(:notification, user: user, read: true)
      user.update(last_seen_at: 31.days.ago)

      message =
        MessageBus
          .track_publish("/notification/#{user.id}") { user.publish_notifications_state }
          .first

      expect(message).to eq(nil)
    end

    context "with sidebar based navigation menu" do
      before { SiteSetting.navigation_menu = "sidebar" }

      it "adds all_unread_notifications and grouped_unread_notifications to the payload" do
        user.update!(admin: true)
        Fabricate(:notification, user: user, notification_type: 1)
        Fabricate(
          :notification,
          notification_type: 15,
          high_priority: true,
          read: false,
          user: user,
        )
        Fabricate(
          :notification,
          user: user,
          notification_type: Notification.types[:private_message],
          read: false,
        )

        messages =
          MessageBus.track_publish("/notification/#{user.id}") { user.publish_notifications_state }

        expect(messages.size).to eq(1)

        message = messages.first

        expect(message.data[:all_unread_notifications_count]).to eq(3)
        expect(message.data[:grouped_unread_notifications]).to eq(
          { 1 => 1, 15 => 1, Notification.types[:private_message] => 1 },
        )
        expect(message.data[:new_personal_messages_notifications_count]).to eq(1)
      end
    end
  end

  describe "silenced?" do
    it "is not silenced by default" do
      expect(Fabricate(:user)).not_to be_silenced
    end

    it "is not silenced with a date in the past" do
      expect(Fabricate(:user, silenced_till: 1.month.ago)).not_to be_silenced
    end

    it "is is silenced with a date in the future" do
      expect(Fabricate(:user, silenced_till: 1.month.from_now)).to be_silenced
    end

    context "with finders" do
      let!(:user0) { Fabricate(:user, silenced_till: 1.month.ago) }
      let!(:user1) { Fabricate(:user, silenced_till: 1.month.from_now) }

      it "doesn't return old silenced records" do
        expect(User.silenced).to_not include(user0)
        expect(User.silenced).to include(user1)
        expect(User.not_silenced).to include(user0)
        expect(User.not_silenced).to_not include(user1)
      end
    end
  end

  describe "#unread_notifications" do
    fab!(:user)
    before { User.max_unread_notifications = 3 }

    after { User.max_unread_notifications = nil }

    it "limits to MAX_UNREAD_NOTIFICATIONS" do
      4.times do
        Notification.create!(user_id: user.id, notification_type: 1, read: false, data: "{}")
      end

      expect(user.unread_notifications).to eq(3)
    end

    it "does not include high priority notifications" do
      Notification.create!(user_id: user.id, notification_type: 1, read: false, data: "{}")
      Notification.create!(
        user_id: user.id,
        notification_type: Notification.types[:private_message],
        read: false,
        data: "{}",
      )
      Notification.create!(
        user_id: user.id,
        notification_type: Notification.types[:bookmark_reminder],
        read: false,
        data: "{}",
      )

      expect(user.unread_notifications).to eq(1)
    end
  end

  describe "#unread_high_priority_notifications" do
    fab!(:user)

    it "only returns an unread count of PM and bookmark reminder notifications" do
      Notification.create!(user_id: user.id, notification_type: 1, read: false, data: "{}")
      Notification.create!(
        user_id: user.id,
        notification_type: Notification.types[:private_message],
        read: false,
        data: "{}",
      )
      Notification.create!(
        user_id: user.id,
        notification_type: Notification.types[:bookmark_reminder],
        read: false,
        data: "{}",
      )

      expect(user.unread_high_priority_notifications).to eq(2)
    end
  end

  describe "#unstage!" do
    let!(:user) do
      Fabricate(
        :staged,
        email: "staged@account.com",
        active: true,
        username: "staged1",
        name: "Stage Name",
      )
    end

    it "correctly unstages a user" do
      user.unstage!
      expect(user.staged).to eq(false)
    end

    it "removes all previous notifications during unstaging" do
      Fabricate(:notification, user: user)
      Fabricate(:private_message_notification, user: user)
      expect(user.total_unread_notifications).to eq(2)

      user.unstage!
      user.reload
      expect(user.total_unread_notifications).to eq(0)
      expect(user.staged).to eq(false)
    end

    it "triggers an event" do
      event = DiscourseEvent.track(:user_unstaged) { user.unstage! }
      expect(event).to be_present
      expect(event[:params].first).to eq(user)
    end
  end

  describe "#activate" do
    let!(:inactive) { Fabricate(:user, active: false) }

    it "confirms email token and activates user" do
      inactive.activate
      inactive.reload
      expect(inactive.email_confirmed?).to eq(true)
      expect(inactive.active).to eq(true)
    end

    it "works without needing to reload the model" do
      inactive.activate
      expect(inactive.email_confirmed?).to eq(true)
      expect(inactive.active).to eq(true)
    end

    it "activates user even if email token is already confirmed" do
      token = inactive.email_tokens.find_by(email: inactive.email)
      token.update_column(:confirmed, true)
      inactive.activate
      expect(inactive.active).to eq(true)
    end
  end

  def filter_by(method)
    username = "someuniqueusername"
    user.update!(username: username)

    username2 = "awesomeusername"
    user2 = Fabricate(:user, username: username2)

    expect(User.public_send(method, username)).to eq([user])

    expect(User.public_send(method, "UNiQuE")).to eq([user])

    expect(User.public_send(method, [username, username2])).to contain_exactly(user, user2)

    expect(User.public_send(method, %w[UNiQuE sOME])).to contain_exactly(user, user2)
  end

  describe "#filter_by_username" do
    it "should be able to filter by username" do
      filter_by(:filter_by_username)
    end
  end

  describe "#filter_by_username_or_email" do
    it "should be able to filter by email" do
      email = "veryspecialtest@discourse.org"
      user.update!(email: email)

      expect(User.filter_by_username_or_email(email)).to eq([user])

      expect(User.filter_by_username_or_email("veryspeCiaLtest")).to eq([user])
    end

    it "should be able to filter by username" do
      filter_by(:filter_by_username_or_email)
    end
  end

  describe "#secondary_emails" do
    fab!(:user)

    it "only contains secondary emails" do
      expect(user.user_emails.secondary).to eq([])

      secondary_email = Fabricate(:secondary_email, user: user)

      expect(user.user_emails.secondary).to contain_exactly(secondary_email)
    end
  end

  describe "#email=" do
    let(:new_email) { "newprimary@example.com" }
    it "sets the primary email" do
      user.update!(email: new_email)
      expect(User.find(user.id).email).to eq(new_email)
    end

    it "only saves when save called" do
      old_email = user.email
      user.email = new_email
      expect(User.find(user.id).email).to eq(old_email)
      user.save!
      expect(User.find(user.id).email).to eq(new_email)
    end

    it "will automatically remove matching secondary emails" do
      secondary_email_record = Fabricate(:secondary_email, user: user)
      user.reload
      expect(user.secondary_emails.count).to eq(1)
      user.email = secondary_email_record.email
      user.save!

      expect(User.find(user.id).email).to eq(secondary_email_record.email)
      expect(user.secondary_emails.count).to eq(0)
    end

    it "returns error if email is nil" do
      user.email = nil
      expect { user.save! }.to raise_error(ActiveRecord::RecordInvalid)
    end
  end

  describe "set_random_avatar" do
    it "sets a random avatar when selectable avatars is enabled" do
      avatar1 = Fabricate(:upload)
      avatar2 = Fabricate(:upload)
      SiteSetting.selectable_avatars = [avatar1, avatar2]
      SiteSetting.selectable_avatars_mode = "no_one"

      user = Fabricate(:user)
      expect(user.uploaded_avatar_id).not_to be(nil)
      expect([avatar1.id, avatar2.id]).to include(user.uploaded_avatar_id)
      expect(user.user_avatar.custom_upload_id).to eq(user.uploaded_avatar_id)
    end
  end

  describe "ensure_consistency!" do
    it "will clean up dangling avatars" do
      upload = Fabricate(:upload)
      user = Fabricate(:user, uploaded_avatar_id: upload.id)

      upload.destroy!
      user.reload
      expect(user.uploaded_avatar_id).to eq(nil)

      user.update_columns(uploaded_avatar_id: upload.id)

      User.ensure_consistency!

      user.reload
      expect(user.uploaded_avatar_id).to eq(nil)
    end
  end

  describe "#match_primary_group_changes" do
    let(:group_a) { Fabricate(:group, title: "A", users: [user]) }
    let(:group_b) { Fabricate(:group, title: "B", users: [user]) }

    it "updates user's title only when it is blank or matches the previous primary group" do
      expect { user.update(primary_group: group_a) }.to change { user.reload.title }.from(nil).to(
        "A",
      )
      expect { user.update(primary_group: group_b) }.to change { user.reload.title }.from("A").to(
        "B",
      )

      user.update(title: "Different")
      expect { user.update(primary_group: group_a) }.to_not change { user.reload.title }
    end

    it "updates user's title only when it is blank or matches the previous primary group" do
      expect { user.update(primary_group: group_a) }.to change { user.reload.flair_group }.from(
        nil,
      ).to(group_a)
      expect { user.update(primary_group: group_b) }.to change { user.reload.flair_group }.from(
        group_a,
      ).to(group_b)

      user.update(flair_group: group_a)
      expect { user.update(primary_group: group_a) }.to_not change { user.reload.flair_group }
    end
  end

  describe "#title=" do
    fab!(:badge) { Badge.find_by(name: "Welcome") }

    it "sets granted_title_badge_id correctly" do
      BadgeGranter.grant(badge, user)

      user.update!(title: badge.name)
      expect(user.user_profile.reload.granted_title_badge_id).to be_nil

      user.update!(title: "Custom")
      expect(user.user_profile.reload.granted_title_badge_id).to be_nil

      badge.update!(allow_title: true)
      user.badges.reload
      user.update!(title: badge.name)
      expect(user.user_profile.reload.granted_title_badge_id).to eq(badge.id)

      user.update!(title: nil)
      expect(user.user_profile.granted_title_badge_id).to be_nil
    end

    context "when a custom badge name has been set and it matches the title" do
      let(:customized_badge_name) { "Merit Badge" }

      before do
        TranslationOverride.upsert!(I18n.locale, Badge.i18n_key(badge.name), customized_badge_name)
      end

      it "sets granted_title_badge_id correctly" do
        BadgeGranter.grant(badge, user)

        badge.update!(allow_title: true)
        user.update!(title: customized_badge_name)
        expect(user.user_profile.reload.granted_title_badge_id).to eq(badge.id)
      end

      after { TranslationOverride.revert!(I18n.locale, Badge.i18n_key(badge.name)) }
    end
  end

  describe "#next_best_title" do
    fab!(:group_a) { Fabricate(:group, title: "Group A") }
    fab!(:group_b) { Fabricate(:group, title: "Group B") }
    fab!(:group_c) { Fabricate(:group, title: "Group C") }
    fab!(:badge) { Fabricate(:badge, name: "Badge", allow_title: true) }

    it "only includes groups with title" do
      group_a.add(user)
      expect(user.next_best_title).to eq("Group A")

      group_a.update!(title: nil)
      expect(user.next_best_title).to eq(nil)
    end

    it "only includes badges that allow to be set as title" do
      BadgeGranter.grant(badge, user)
      expect(user.next_best_title).to eq("Badge")

      badge.update!(allow_title: false)
      expect(user.next_best_title).to eq(nil)
    end

    it "picks the next best title in the order: user's primary group, primary group, groups, and badges" do
      group_a.add(user)
      group_b.add(user)
      group_c.add(user)
      BadgeGranter.grant(badge, user)

      group_a.update!(primary_group: true)
      group_b.update!(primary_group: true)
      user.update!(primary_group_id: group_a.id)
      expect(user.next_best_title).to eq("Group A")

      user.update!(primary_group_id: group_b.id)
      expect(user.next_best_title).to eq("Group B")

      group_b.remove(user)
      expect(user.next_best_title).to eq("Group A")

      group_a.remove(user)
      expect(user.next_best_title).to eq("Group C")

      group_c.remove(user)
      expect(user.next_best_title).to eq("Badge")

      BadgeGranter.revoke(UserBadge.find_by(user_id: user.id, badge_id: badge.id))
      expect(user.next_best_title).to eq(nil)
    end
  end

  describe "check_site_contact_username" do
    before { SiteSetting.site_contact_username = contact_user.username }

    context "when admin" do
      let(:contact_user) { Fabricate(:admin) }

      it "clears site_contact_username site setting when admin privilege is revoked" do
        contact_user.revoke_admin!
        expect(SiteSetting.site_contact_username).to eq(
          SiteSetting.defaults[:site_contact_username],
        )
      end
    end

    context "when moderator" do
      let(:contact_user) { Fabricate(:moderator) }

      it "clears site_contact_username site setting when moderator privilege is revoked" do
        contact_user.revoke_moderation!
        expect(SiteSetting.site_contact_username).to eq(
          SiteSetting.defaults[:site_contact_username],
        )
      end
    end

    context "when admin and moderator" do
      let(:contact_user) { Fabricate(:moderator, admin: true) }

      it "does not change site_contact_username site setting when admin privilege is revoked" do
        contact_user.revoke_admin!
        expect(SiteSetting.site_contact_username).to eq(contact_user.username)
      end

      it "does not change site_contact_username site setting when moderator privilege is revoked" do
        contact_user.revoke_moderation!
        expect(SiteSetting.site_contact_username).to eq(contact_user.username)
      end

      it "clears site_contact_username site setting when staff privileges are revoked" do
        contact_user.revoke_admin!
        contact_user.revoke_moderation!
        expect(SiteSetting.site_contact_username).to eq(
          SiteSetting.defaults[:site_contact_username],
        )
      end
    end
  end

  describe "#destroy!" do
    it "clears up associated data on destroy!" do
      user = Fabricate(:user)
      post = Fabricate(:post)

      PostActionCreator.like(user, post)
      PostActionDestroyer.destroy(user, post, :like)

      UserAction.create!(user_id: user.id, action_type: UserAction::LIKE)
      UserAction.create!(user_id: -1, action_type: UserAction::LIKE, target_user_id: user.id)
      UserAction.create!(user_id: -1, action_type: UserAction::LIKE, acting_user_id: user.id)
      Developer.create!(user_id: user.id)

      user.reload

      user.destroy!

      expect(UserAction.where(user_id: user.id).length).to eq(0)
      expect(UserAction.where(target_user_id: user.id).length).to eq(0)
      expect(UserAction.where(acting_user_id: user.id).length).to eq(0)
      expect(PostAction.with_deleted.where(user_id: user.id).length).to eq(0)
      expect(Developer.where(user_id: user.id).length).to eq(0)
    end
  end

  describe "#human?" do
    it "returns true for a regular user" do
      expect(Fabricate(:user)).to be_human
    end

    it "returns false for the system user" do
      expect(Discourse.system_user).not_to be_human
    end
  end

  describe "Unicode username" do
    before { SiteSetting.unicode_usernames = true }

    let(:user) { Fabricate(:user, username: "Lo\u0308we") } # NFD

    it "normalizes usernames" do
      expect(user.username).to eq("L\u00F6we") # NFC
      expect(user.username_lower).to eq("l\u00F6we") # NFC
    end

    describe ".username_exists?" do
      it "normalizes username before executing query" do
        expect(User.username_exists?(user.username)).to eq(true)
        expect(User.username_exists?("Lo\u0308we")).to eq(true) # NFD
        expect(User.username_exists?("L\u00F6we")).to eq(true) # NFC
        expect(User.username_exists?("LO\u0308WE")).to eq(true) # NFD
        expect(User.username_exists?("l\u00D6wE")).to eq(true) # NFC
        expect(User.username_exists?("foo")).to eq(false)
      end
    end

    describe ".system_avatar_template" do
      context "with external system avatars enabled" do
        before { SiteSetting.external_system_avatars_enabled = true }

        it "uses the normalized username" do
          expect(User.system_avatar_template("Lo\u0308we")).to match(
            %r|/letter_avatar_proxy/v\d/letter/l/71e660/{size}.png|,
          )
          expect(User.system_avatar_template("L\u00F6wE")).to match(
            %r|/letter_avatar_proxy/v\d/letter/l/71e660/{size}.png|,
          )
        end

        it "uses the first grapheme cluster and URL encodes it" do
          expect(User.system_avatar_template("बहुत")).to match(
            %r|/letter_avatar_proxy/v\d/letter/%E0%A4%AC/ea5d25/{size}.png|,
          )
        end

        it "substitutes {username} with the URL encoded username" do
          SiteSetting.external_system_avatars_url = "https://{hostname}/{username}.png"
          expect(User.system_avatar_template("बहुत")).to eq(
            "https://#{Discourse.current_hostname}/%E0%A4%AC%E0%A4%B9%E0%A5%81%E0%A4%A4.png",
          )
        end
      end
    end
  end

  describe "Second-factor authenticators" do
    describe "#totps" do
      it "only includes enabled totp 2FA" do
        enabled_totp_2fa =
          Fabricate(:user_second_factor_totp, user: user, name: "Enabled TOTP", enabled: true)
        _disabled_totp_2fa =
          Fabricate(:user_second_factor_totp, user: user, name: "Disabled TOTP", enabled: false)

        expect(user.totps.map(&:id)).to eq([enabled_totp_2fa.id])
      end
    end

    describe "#security_keys" do
      it "only includes enabled security_key 2FA" do
        enabled_security_key_2fa =
          Fabricate(
            :user_security_key_with_random_credential,
            user: user,
            name: "Enabled YubiKey",
            enabled: true,
          )
        _disabled_security_key_2fa =
          Fabricate(
            :user_security_key_with_random_credential,
            user: user,
            name: "Disabled YubiKey",
            enabled: false,
          )

        expect(user.security_keys.map(&:id)).to eq([enabled_security_key_2fa.id])
      end
    end
  end

  describe "Secure identifier for a user which is a string other than the ID used to identify the user in some cases e.g. security keys" do
    describe "#create_or_fetch_secure_identifier" do
      context "if the user already has a secure identifier" do
        let(:sec_ident) { SecureRandom.hex(20) }
        before { user.update(secure_identifier: sec_ident) }

        it "returns the identifier" do
          expect(user.create_or_fetch_secure_identifier).to eq(sec_ident)
        end
      end

      context "if the user already does not have a secure identifier" do
        it "creates one" do
          expect(user.secure_identifier).to eq(nil)
          user.create_or_fetch_secure_identifier
          expect(user.reload.secure_identifier).not_to eq(nil)
        end
      end
    end
  end

  describe "Granting admin or moderator status" do
    context "when granting admin status" do
      context "when there is a reviewable" do
        fab!(:user) { Fabricate(:reviewable_user) }

        context "when the user isn’t approved yet" do
          it "approves the associated reviewable" do
            expect { user.target.grant_admin! }.to change { user.reload.dup }.to be_approved
          end
        end

        context "when the user is already approved" do
          before { user.perform(Discourse.system_user, :approve_user) }

          it "does nothing" do
            expect { user.target.grant_admin! }.not_to change { user.reload.approved? }
          end
        end
      end

      context "when there is no reviewable" do
        let(:user) { Fabricate(:user, approved: false) }

        it "approves the user" do
          expect { user.grant_admin! }.to change { user.reload.approved }.to true
        end
      end
    end

    context "when granting moderator status" do
      context "when there is a reviewable" do
        let(:user) { Fabricate(:reviewable_user) }

        it "approves the associated reviewable" do
          expect { user.target.grant_moderation! }.to change { user.reload.dup }.to be_approved
        end
      end
    end
  end

  describe "#recent_time_read" do
    fab!(:user)
    fab!(:user2) { Fabricate(:user) }

    before_all do
      UserVisit.create(
        user_id: user.id,
        visited_at: 1.minute.ago,
        posts_read: 1,
        mobile: false,
        time_read: 10,
      )
      UserVisit.create(
        user_id: user.id,
        visited_at: 2.days.ago,
        posts_read: 1,
        mobile: false,
        time_read: 20,
      )
      UserVisit.create(
        user_id: user.id,
        visited_at: 1.week.ago,
        posts_read: 1,
        mobile: false,
        time_read: 30,
      )
      UserVisit.create(
        user_id: user.id,
        visited_at: 1.year.ago,
        posts_read: 1,
        mobile: false,
        time_read: 40,
      ) # Old, should be ignored
      UserVisit.create(
        user_id: user2.id,
        visited_at: 1.minute.ago,
        posts_read: 1,
        mobile: false,
        time_read: 50,
      )
    end

    it "calculates correctly" do
      expect(user.recent_time_read).to eq(60)
      expect(user2.recent_time_read).to eq(50)
    end

    it "preloads correctly" do
      User.preload_recent_time_read([user, user2])

      expect(user.instance_variable_get(:@recent_time_read)).to eq(60)
      expect(user2.instance_variable_get(:@recent_time_read)).to eq(50)

      expect(user.recent_time_read).to eq(60)
      expect(user2.recent_time_read).to eq(50)
    end
  end

  def reset_last_seen_cache!(user)
    Discourse.redis.del("user:#{user.id}:#{Time.zone.now.to_date}")
  end

  describe ".encoded_username" do
    it "doesn't encoded ASCII usernames" do
      user = Fabricate(:user, username: "John")
      expect(user.encoded_username).to eq("John")
      expect(user.encoded_username(lower: true)).to eq("john")
    end

    it "encodes Unicode characters" do
      SiteSetting.unicode_usernames = true
      user = Fabricate(:user, username: "Löwe")
      expect(user.encoded_username).to eq("L%C3%B6we")
      expect(user.encoded_username(lower: true)).to eq("l%C3%B6we")
    end
  end

  describe "#update_ip_address!" do
    let!(:plugin) { Plugin::Instance.new }
    let!(:modifier) { :user_can_update_ip_address }
    let!(:deny_block) { Proc.new { false } }
    let!(:allow_block) { Proc.new { true } }

    it "updates ip_address correctly" do
      expect do user.update_ip_address!("127.0.0.1") end.to change {
        user.reload.ip_address.to_s
      }.to("127.0.0.1")

      expect do user.update_ip_address!("127.0.0.1") end.to_not change { user.reload.ip_address }
    end

    it "allows plugins to control updating ip_address" do
      DiscoursePluginRegistry.register_modifier(plugin, modifier, &deny_block)
      expect do user.update_ip_address!("127.0.0.1") end.to_not change { user.reload.ip_address }

      DiscoursePluginRegistry.register_modifier(plugin, modifier, &allow_block)
      expect do user.update_ip_address!("127.0.0.1") end.to change {
        user.reload.ip_address.to_s
      }.to("127.0.0.1")
    ensure
      DiscoursePluginRegistry.unregister_modifier(plugin, modifier, &deny_block)
      DiscoursePluginRegistry.unregister_modifier(plugin, modifier, &allow_block)
    end

    describe "keeping old ip address" do
      before { SiteSetting.keep_old_ip_address_count = 2 }

      it "tracks old user record correctly" do
        expect do user.update_ip_address!("127.0.0.1") end.to change {
          UserIpAddressHistory.where(user_id: user.id).count
        }.by(1)

        freeze_time 10.minutes.from_now

        expect do user.update_ip_address!("0.0.0.0") end.to change {
          UserIpAddressHistory.where(user_id: user.id).count
        }.by(1)

        freeze_time 11.minutes.from_now

        expect do user.update_ip_address!("127.0.0.1") end.to_not change {
          UserIpAddressHistory.where(user_id: user.id).count
        }

        expect(
          UserIpAddressHistory.find_by(user_id: user.id, ip_address: "127.0.0.1").updated_at,
        ).to eq_time(Time.zone.now)

        freeze_time 12.minutes.from_now

        expect do user.update_ip_address!("0.0.0.1") end.not_to change {
          UserIpAddressHistory.where(user_id: user.id).count
        }

        expect(UserIpAddressHistory.where(user_id: user.id).pluck(:ip_address).map(&:to_s)).to eq(
          %w[127.0.0.1 0.0.0.1],
        )
      end
    end
  end

  describe "#do_not_disturb?" do
    it "is true when a dnd timing is present for the current time" do
      Fabricate(
        :do_not_disturb_timing,
        user: user,
        starts_at: Time.zone.now,
        ends_at: 1.day.from_now,
      )
      expect(user.do_not_disturb?).to eq(true)
    end

    it "is false when no dnd timing is present for the current time" do
      Fabricate(
        :do_not_disturb_timing,
        user: user,
        starts_at: Time.zone.now - 2.day,
        ends_at: 1.minute.ago,
      )
      expect(user.do_not_disturb?).to eq(false)
    end
  end

  describe "#invited_by" do
    it "returns even if invites was trashed" do
      invite = Fabricate(:invite, invited_by: Fabricate(:user))
      Fabricate(:invited_user, invite: invite, user: user, redeemed_at: Time.now)
      invite.trash!

      expect(user.invited_by).to eq(invite.invited_by)
    end

    it "does not return invites that are not redeemed yet" do
      invite = Fabricate(:invite, invited_by: Fabricate(:user))
      Fabricate(:invited_user, invite: invite, user: user, redeemed_at: nil)
      invite.trash!

      expect(user.invited_by).to eq(nil)
    end

    it "excludes invites redeemed after user creation" do
      invite = Fabricate(:invite, invited_by: Fabricate(:user))
      Fabricate(:invited_user, invite: invite, user: user, redeemed_at: user.created_at + 6.second)

      expect(user.invited_by).to eq(nil)
    end
  end

  describe "#username_equals_to?" do
    [
      ["returns true for equal usernames", "john", "john", true],
      ["returns false for different usernames", "john", "bill", false],
      ["considers usernames that are different only in case as equal", "john", "JoHN", true],
    ].each do |testcase_name, current_username, another_username, is_equal|
      it "#{testcase_name}" do
        user = Fabricate(:user, username: current_username)
        result = user.username_equals_to?(another_username)

        expect(result).to be(is_equal)
      end
    end

    it "considers usernames that are equal after unicode normalization as equal" do
      SiteSetting.unicode_usernames = true

      raw = "Lo\u0308we" # Löwe, u0308 stands for ¨, so o\u0308 adds up to ö
      normalized = "l\u00F6we" # Löwe normilized, \u00F6 stands for ö
      user = Fabricate(:user, username: normalized)
      result = user.username_equals_to?(raw)

      expect(result).to be(true)
    end
  end

  describe "#whisperer?" do
    fab!(:group)

    it "returns true for an admin user" do
      SiteSetting.whispers_allowed_groups = "#{group.id}"

      admin = Fabricate.create(:admin)
      expect(admin.whisperer?).to eq(true)
    end

    it "returns false for an admin user when whispers are not enabled" do
      admin = Fabricate.create(:admin)
      expect(admin.whisperer?).to eq(false)
    end

    it "returns true for user belonging to whisperers groups" do
      whisperer = Fabricate(:user)
      user = Fabricate(:user)
      SiteSetting.whispers_allowed_groups = "#{group.id}"

      expect(whisperer.whisperer?).to eq(false)
      expect(user.whisperer?).to eq(false)

      group.add(whisperer)

      expect(whisperer.whisperer?).to eq(true)
      expect(user.whisperer?).to eq(false)
    end

    it "returns false if no whispers groups exist" do
      expect(user.whisperer?).to eq(false)
    end
  end

  describe "#grouped_unread_notifications" do
    it "returns a map of types to their unread count" do
      Fabricate(:notification, user: user, notification_type: 1, high_priority: true, read: true)
      Fabricate(:notification, user: user, notification_type: 1, high_priority: true, read: false)
      Fabricate(:notification, user: user, notification_type: 1, high_priority: false, read: true)
      Fabricate(:notification, user: user, notification_type: 1, high_priority: false, read: false)

      Fabricate(
        :notification,
        user: user,
        notification_type: 2,
        high_priority: true,
        read: false,
        topic: nil,
      )

      Fabricate(
        :notification,
        user: user,
        notification_type: 3,
        high_priority: true,
        read: false,
      ).tap { |n| n.topic.trash!(Fabricate(:admin)) }

      Fabricate(:notification, user: user, notification_type: 3, high_priority: false, read: true)

      # notification for another user. it shouldn't be included
      Fabricate(:notification, notification_type: 4, high_priority: true, read: false)

      expect(user.grouped_unread_notifications).to eq({ 1 => 2, 2 => 1 })
    end
  end

  describe "#all_unread_notifications_count" do
    it "returns count of unseen and unread high priority and normal priority notifications" do
      Fabricate(:notification, user: user, high_priority: true, read: false)
      n2 = Fabricate(:notification, user: user, high_priority: false, read: false)
      expect(user.all_unread_notifications_count).to eq(2)

      n2.update!(read: true)
      user.reload

      expect(user.all_unread_notifications_count).to eq(1)

      user.update!(seen_notification_id: n2.id)
      user.reload

      expect(user.all_unread_notifications_count).to eq(0)

      n3 = Fabricate(:notification, user: user)
      user.reload

      expect(user.all_unread_notifications_count).to eq(1)

      n3.topic.trash!(Fabricate(:admin))
      user.reload

      expect(user.all_unread_notifications_count).to eq(0)
    end
  end

  describe "#bump_last_seen_reviewable!" do
    it "doesn't error if there are no reviewables" do
      Reviewable.destroy_all
      user.bump_last_seen_reviewable!
      expect(user.last_seen_reviewable_id).to eq(nil)
    end

    it "picks the reviewable of the largest id" do
      user.update!(admin: true)
      Fabricate(:reviewable, created_at: 3.minutes.ago, updated_at: 3.minutes.ago, score: 100)
      reviewable2 =
        Fabricate(:reviewable, created_at: 30.minutes.ago, updated_at: 30.minutes.ago, score: 10)
      user.bump_last_seen_reviewable!
      expect(user.last_seen_reviewable_id).to eq(reviewable2.id)
    end

    it "stays at the maximum reviewable if there are no new reviewables" do
      user.update!(admin: true)
      reviewable = Fabricate(:reviewable)
      user.bump_last_seen_reviewable!
      expect(user.last_seen_reviewable_id).to eq(reviewable.id)
      user.bump_last_seen_reviewable!
      expect(user.last_seen_reviewable_id).to eq(reviewable.id)
    end

    it "respects reviewables security" do
      admin = Fabricate(:admin)
      moderator = Fabricate(:moderator)
      group = Fabricate(:group)
      user.update!(groups: [group])
      SiteSetting.enable_category_group_moderation = true

      category = Fabricate(:category)
      Fabricate(:category_moderation_group, category:, group:)
      group_reviewable = Fabricate(:reviewable, reviewable_by_moderator: false, category:)
      mod_reviewable = Fabricate(:reviewable, reviewable_by_moderator: true)
      admin_reviewable = Fabricate(:reviewable, reviewable_by_moderator: false)

      [admin, moderator, user].each(&:bump_last_seen_reviewable!)

      expect(admin.last_seen_reviewable_id).to eq(admin_reviewable.id)
      expect(moderator.last_seen_reviewable_id).to eq(mod_reviewable.id)
      expect(user.last_seen_reviewable_id).to eq(group_reviewable.id)
    end

    it "publishes a message to the user's /reviewable_counts message bus channel" do
      user.update!(admin: true)
      Fabricate(:reviewable)
      messages = MessageBus.track_publish { user.bump_last_seen_reviewable! }
      expect(messages.size).to eq(1)
      expect(messages.first).to have_attributes(
        channel: "/reviewable_counts/#{user.id}",
        user_ids: [user.id],
        data: {
          unseen_reviewable_count: 0,
          reviewable_count: 1,
        },
      )
    end
  end

  describe "#bump_last_seen_notification!" do
    it "doesn't error if there are no notifications" do
      Notification.destroy_all
      expect(user.bump_last_seen_notification!).to eq(false)
      expect(user.reload.seen_notification_id).to eq(0)
    end

    it "updates seen_notification_id to the last notification that the user can see" do
      last_notification = Fabricate(:notification, user: user)
      deleted_notification = Fabricate(:notification, user: user)
      deleted_notification.topic.trash!
      _someone_else_notification = Fabricate(:notification, user: Fabricate(:user))

      expect(user.bump_last_seen_notification!).to eq(true)
      expect(user.reload.seen_notification_id).to eq(last_notification.id)
    end
  end

  describe "#secured_sidebar_category_ids" do
    fab!(:user)
    fab!(:category)
    fab!(:group)
    fab!(:secured_category) { Fabricate(:private_category, group: group) }

    fab!(:category_sidebar_section_link) do
      Fabricate(:category_sidebar_section_link, user: user, linkable: category)
    end

    fab!(:secured_category_sidebar_section_link) do
      Fabricate(:category_sidebar_section_link, user: user, linkable: secured_category)
    end

    it "should only return the category ids of category sidebar section link records that the user is allowed to see" do
      expect(user.secured_sidebar_category_ids).to contain_exactly(category.id)

      user.update!(admin: true)

      expect(user.secured_sidebar_category_ids).to contain_exactly(category.id, secured_category.id)
    end
  end

  describe "#visible_sidebar_tags" do
    fab!(:user)
    fab!(:tag)
    fab!(:hidden_tag) { Fabricate(:tag, name: "secret") }
    fab!(:staff_tag_group) do
      Fabricate(:tag_group, permissions: { "staff" => 1 }, tag_names: ["secret"])
    end
    fab!(:tag_sidebar_section_link) do
      Fabricate(:tag_sidebar_section_link, user: user, linkable: tag)
    end
    fab!(:tag_sidebar_section_link_2) do
      Fabricate(:tag_sidebar_section_link, user: user, linkable: hidden_tag)
    end

    it "should only return tag sidebar section link records of tags that the user is allowed to see" do
      expect(user.visible_sidebar_tags).to contain_exactly(tag)

      user.update!(admin: true)

      expect(user.visible_sidebar_tags).to contain_exactly(tag, hidden_tag)
    end
  end

  describe "#secure_category_ids" do
    fab!(:admin)
    fab!(:group)
    fab!(:private_category) { Fabricate(:private_category, group: group) }

    it "allows admin to see all secure categories" do
      expect(admin.secure_category_ids).to include(private_category.id)
    end

    context "when SiteSetting.suppress_secured_categories_from_admin is true" do
      it "hides secure categories from admins" do
        SiteSetting.suppress_secured_categories_from_admin = true
        expect(admin.secure_category_ids).not_to include(private_category.id)
      end
    end
  end

  describe "#new_personal_messages_notifications_count" do
    it "returns count of new and unread private_message notifications of the user" do
      another_user = Fabricate(:user)

      Fabricate(:notification, user: user, read: false)

      last_seen_id =
        Fabricate(
          :notification,
          user: user,
          read: false,
          notification_type: Notification.types[:private_message],
        ).id

      expect(user.new_personal_messages_notifications_count).to eq(1)

      Fabricate(
        :notification,
        user: user,
        read: false,
        notification_type: Notification.types[:private_message],
      )

      Fabricate(
        :notification,
        user: another_user,
        read: false,
        notification_type: Notification.types[:private_message],
      )

      Fabricate(
        :notification,
        user: user,
        read: true,
        notification_type: Notification.types[:private_message],
      )

      Fabricate(
        :notification,
        user: user,
        read: false,
        notification_type: Notification.types[:replied],
      )

      user.update!(seen_notification_id: last_seen_id)
      expect(user.new_personal_messages_notifications_count).to eq(1)
    end
  end

  describe "#populated_required_fields?" do
    let!(:required_field) do
      Fabricate(:user_field, name: "hairstyle", requirement: "for_all_users")
    end
    let!(:signup_field) { Fabricate(:user_field, name: "haircolor", requirement: "on_signup") }
    let!(:optional_field) { Fabricate(:user_field, name: "haircolor", requirement: "optional") }

    context "when all required fields are populated" do
      before { user.set_user_field(required_field.id, "bald") }

      it { expect(user.populated_required_custom_fields?).to eq(true) }
    end

    context "when some required fields are missing values" do
      it { expect(user.populated_required_custom_fields?).to eq(false) }
    end
  end

  describe "#needs_required_fields_check?" do
    let!(:version) { UserRequiredFieldsVersion.create! }

    context "when version number is up to date" do
      before { user.update(required_fields_version: version.id) }

      it { expect(user.needs_required_fields_check?).to eq(false) }
    end

    context "when version number is out of date" do
      before { user.update(required_fields_version: version.id - 1) }

      it { expect(user.needs_required_fields_check?).to eq(true) }
    end
  end

  describe "#bump_required_fields_version" do
    let!(:version) { UserRequiredFieldsVersion.create! }

    it do
      expect { user.bump_required_fields_version }.to change { user.required_fields_version }.to(
        version.id,
      )
    end
  end
end