# frozen_string_literal: true

require "site_settings/yaml_loader"

RSpec.describe SiteSettings::YamlLoader do
  class Receiver
    attr_reader :settings, :client_settings, :categories

    def load_yaml(file_arg)
      SiteSettings::YamlLoader
        .new(file_arg)
        .load { |category, name, default, opts| setting(category, name, default, opts) }
    end

    def setting(category, name, default = nil, opts = {})
      @settings ||= []
      @client_settings ||= []
      @settings << name
      @categories ||= []
      @categories << category
      @categories.uniq!
      @client_settings << name if opts.has_key?(:client)
    end
  end

  let!(:receiver) { Receiver.new }
  let(:simple) { "#{Rails.root}/spec/fixtures/site_settings/simple.yml" }
  let(:client) { "#{Rails.root}/spec/fixtures/site_settings/client.yml" }
  let(:enum) { "#{Rails.root}/spec/fixtures/site_settings/enum.yml" }
  let(:enum_client) { "#{Rails.root}/spec/fixtures/site_settings/enum_client.yml" }
  let(:deprecated_env) { "#{Rails.root}/spec/fixtures/site_settings/deprecated_env.yml" }
  let(:deprecated_hidden) { "#{Rails.root}/spec/fixtures/site_settings/deprecated_hidden.yml" }
  let(:locale_default) { "#{Rails.root}/spec/fixtures/site_settings/locale_default.yml" }
  let(:nil_default) { "#{Rails.root}/spec/fixtures/site_settings/nil_default.yml" }

  it "loads simple settings" do
    receiver.expects(:setting).with("category1", "title", "My Site", {}).once
    receiver.expects(:setting).with("category1", "contact_email", "webmaster@example.com", {}).once
    receiver.expects(:setting).with("category2", "editing_grace_period", true, {}).once
    receiver.expects(:setting).with("category3", "reply_by_email_address", "", {}).once
    receiver.load_yaml(simple)
  end

  it "can take a File argument" do
    receiver.expects(:setting).at_least_once
    receiver.load_yaml(File.new(simple))
  end

  it "maintains order of categories" do
    receiver.load_yaml(simple)
    expect(receiver.categories).to eq(%w[category1 category2 category3])
  end

  it "can load client settings" do
    receiver.expects(:setting).with("category1", "title", "Discourse", { client: true })
    receiver.expects(:setting).with("category2", "tos_url", "", { client: true })
    receiver.expects(:setting).with("category2", "must_approve_users", false, { client: true })
    receiver.load_yaml(client)
  end

  it "can load enum settings" do
    receiver.expects(:setting).with(
      "email",
      "default_email_digest_frequency",
      7,
      { enum: "DigestEmailSiteSetting" },
    )
    receiver.load_yaml(enum)
  end

  it "can load enum client settings" do
    receiver
      .expects(:setting)
      .with do |category, name, default, opts|
        category == ("basics") && name == ("default_locale") && default == ("en") &&
          opts[:enum] == ("LocaleSiteSetting") && opts[:client] == true
      end
    receiver.load_yaml(enum_client)
  end

  it "raises invalid parameter when default value is not present" do
    expect { receiver.load_yaml(nil_default) }.to raise_error(StandardError)
  end

  it "can load settings with locale default" do
    receiver.expects(:setting).with(
      "search",
      "min_search_term_length",
      3,
      { min: 2, client: true, locale_default: { zh_CN: 2, zh_TW: 2 } },
    )
    receiver.load_yaml(locale_default)
  end
end