# frozen_string_literal: true

RSpec.describe UploadValidator do
  subject(:validator) { described_class.new }

  describe "validate" do
    fab!(:user) { Fabricate(:user) }
    let(:filename) { "discourse.csv" }
    let(:csv_file) { file_from_fixtures(filename, "csv") }

    it "should create an invalid upload when the filename is blank" do
      SiteSetting.authorized_extensions = "*"
      created_upload = UploadCreator.new(csv_file, nil).create_for(user.id)
      validator.validate(created_upload)
      expect(created_upload).to_not be_valid
      expect(created_upload.errors.full_messages.first).to include(
        I18n.t("activerecord.errors.messages.blank"),
      )
    end

    it "allows 'gz' as extension when uploading export file" do
      SiteSetting.authorized_extensions = ""

      expect(
        UploadCreator.new(csv_file, "#{filename}.zip", for_export: true).create_for(user.id),
      ).to be_valid
    end

    it "allows uses max_export_file_size_kb when uploading export file" do
      SiteSetting.max_attachment_size_kb = "0"
      SiteSetting.authorized_extensions = "zip"

      expect(
        UploadCreator.new(csv_file, "#{filename}.zip", for_export: true).create_for(user.id),
      ).to be_valid
    end

    describe "size validation" do
      it "does not allow images that are too large" do
        SiteSetting.max_image_size_kb = 1536
        upload =
          Fabricate.build(
            :upload,
            user: Fabricate(:admin),
            original_filename: "test.png",
            filesize: 2_097_152,
          )
        subject.validate(upload)
        expect(upload.errors.full_messages.first).to eq(
          "Filesize #{I18n.t("upload.images.too_large_humanized", max_size: "1.5 MB")}",
        )
      end
    end

    describe "when allow_staff_to_upload_any_file_in_pm is true" do
      it "should allow uploads for pm" do
        upload =
          Fabricate.build(
            :upload,
            user: Fabricate(:admin),
            original_filename: "test.ico",
            for_private_message: true,
          )

        expect(subject.validate(upload)).to eq(true)
      end

      describe "for a normal user" do
        it "should not allow uploads for pm" do
          upload =
            Fabricate.build(
              :upload,
              user: Fabricate(:user),
              original_filename: "test.ico",
              for_private_message: true,
            )

          expect(subject.validate(upload)).to eq(nil)
        end
      end
    end

    describe "upload for site settings" do
      fab!(:user) { Fabricate(:admin) }

      let(:upload) do
        Fabricate.build(:upload, user: user, original_filename: "test.ico", for_site_setting: true)
      end

      before { SiteSetting.authorized_extensions = "png" }

      describe "for admin user" do
        it "should allow the upload" do
          expect(subject.validate(upload)).to eq(true)
        end

        describe "when filename is invalid" do
          it "should not allow the upload" do
            upload.original_filename = "test.txt"
            expect(subject.validate(upload)).to eq(nil)
          end
        end
      end

      describe "for normal user" do
        fab!(:user) { Fabricate(:user) }

        it "should not allow the upload" do
          expect(subject.validate(upload)).to eq(nil)
        end
      end
    end
  end
end