discourse/spec/requests/extra_locales_controller_spec.rb

# frozen_string_literal: true

require 'rails_helper'

describe ExtraLocalesController do
  context 'show' do

    it "won't work with a weird parameter" do
      get "/extra-locales/-invalid..character!!"
      expect(response.status).to eq(404)
    end

    it "needs a valid bundle" do
      get "/extra-locales/made-up-bundle"
      expect(response.status).to eq(403)
    end

    it "requires staff access" do
      get "/extra-locales/admin"
      expect(response.status).to eq(403)

      get "/extra-locales/wizard"
      expect(response.status).to eq(403)
    end

    it "requires a valid version" do
      get "/extra-locales/overrides", params: { v: 'a' }
      expect(response.status).to eq(400)

      get "/extra-locales/overrides?v[foo]=1"
      expect(response.status).to eq(400)
    end

    context "logged in as a moderator" do

      let(:moderator) { Fabricate(:moderator) }
      before { sign_in(moderator) }

      it "caches for 1 year if version is provided and it matches current hash" do
        get "/extra-locales/admin", params: { v: ExtraLocalesController.bundle_js_hash('admin') }
        expect(response.status).to eq(200)
        expect(response.headers["Cache-Control"]).to eq("max-age=31556952, public, immutable")
      end

      it "does not cache at all if version is invalid" do
        get "/extra-locales/admin", params: { v: 'a' * 32 }
        expect(response.status).to eq(200)
        expect(response.headers["Cache-Control"]).not_to include("max-age", "public", "immutable")
      end

      context "with plugin" do
        before do
          JsLocaleHelper.clear_cache!
          JsLocaleHelper.expects(:plugin_translations)
            .with(any_of("en", "en_GB"))
            .returns("admin_js" => {
              "admin" => {
                "site_settings" => {
                  "categories" => {
                    "github_badges" => "GitHub Badges"
                  }
                }
              }
            }).at_least_once
        end

        after do
          JsLocaleHelper.clear_cache!
        end

        it "includes plugin translations" do
          get "/extra-locales/admin"
          expect(response.status).to eq(200)
          expect(response.body.include?("github_badges")).to eq(true)
        end
      end
    end

    context "overridden translations" do
      after { I18n.reload! }

      it "works for anonymous users" do
        TranslationOverride.upsert!(I18n.locale, 'js.some_key', 'client-side translation')

        get "/extra-locales/overrides", params: { v: ExtraLocalesController.bundle_js_hash('overrides') }
        expect(response.status).to eq(200)
        expect(response.headers["Cache-Control"]).to eq("max-age=31556952, public, immutable")
      end

      it "returns nothing when there are not overridden translations" do
        get "/extra-locales/overrides"
        expect(response.status).to eq(200)
        expect(response.body).to be_empty
      end

      context "with translations" do
        it "returns the correct translations" do
          TranslationOverride.upsert!(I18n.locale, 'js.some_key', 'client-side translation')
          TranslationOverride.upsert!(I18n.locale, 'js.client_MF', '{NUM_RESULTS, plural, one {1 result} other {many} }')
          TranslationOverride.upsert!(I18n.locale, 'admin_js.another_key', 'admin client js')
          TranslationOverride.upsert!(I18n.locale, 'server.some_key', 'server-side translation')
          TranslationOverride.upsert!(I18n.locale, 'server.some_MF', '{NUM_RESULTS, plural, one {1 result} other {many} }')

          get "/extra-locales/overrides"
          expect(response.status).to eq(200)
          expect(response.body).to_not include("server.some_key", "server.some_MF")

          ctx = MiniRacer::Context.new
          ctx.eval("I18n = {};")
          ctx.eval(response.body)

          expect(ctx.eval("typeof I18n._mfOverrides['js.client_MF']")).to eq("function")
          expect(ctx.eval("I18n._overrides['#{I18n.locale}']['js.some_key']")).to eq("client-side translation")
          expect(ctx.eval("I18n._overrides['#{I18n.locale}']['js.client_MF'] === undefined")).to eq(true)
          expect(ctx.eval("I18n._overrides['#{I18n.locale}']['admin_js.another_key']")).to eq("admin client js")
        end

        it "returns overrides from fallback locale" do
          TranslationOverride.upsert!(:en, 'js.some_key', 'some key (en)')
          TranslationOverride.upsert!(:fr, 'js.some_key', 'some key (fr)')
          TranslationOverride.upsert!(:en, 'js.only_en', 'only English')
          TranslationOverride.upsert!(:fr, 'js.only_fr', 'only French')
          TranslationOverride.upsert!(:en, 'js.some_client_MF', '{NUM_RESULTS, plural, one {1 result} other {many} }')
          TranslationOverride.upsert!(:fr, 'js.some_client_MF', '{NUM_RESULTS, plural, one {1 result} other {many} }')
          TranslationOverride.upsert!(:en, 'js.only_en_MF', '{NUM_RESULTS, plural, one {1 result} other {many} }')
          TranslationOverride.upsert!(:fr, 'js.only_fr_MF', '{NUM_RESULTS, plural, one {1 result} other {many} }')

          SiteSetting.allow_user_locale = true
          user = Fabricate(:user, locale: :fr)
          sign_in(user)

          get "/extra-locales/overrides"
          expect(response.status).to eq(200)

          ctx = MiniRacer::Context.new
          ctx.eval("I18n = {};")
          ctx.eval(response.body)

          overrides = ctx.eval("I18n._overrides")
          expect(overrides.keys).to contain_exactly("en", "fr")
          expect(overrides["en"]).to eq({ 'js.only_en' => 'only English' })
          expect(overrides["fr"]).to eq({ 'js.some_key' => 'some key (fr)', 'js.only_fr' => 'only French' })

          expect(ctx.eval("Object.keys(I18n._mfOverrides)")).to contain_exactly("js.some_client_MF", "js.only_en_MF", "js.only_fr_MF")
        end
      end
    end
  end

  describe ".bundle_js_hash" do
    it "doesn't call bundle_js more than once for the same locale and bundle" do
      I18n.locale = :de
      ExtraLocalesController.expects(:bundle_js).with("admin").returns("admin_js DE").once
      expected_hash_de = Digest::MD5.hexdigest("admin_js DE")

      expect(ExtraLocalesController.bundle_js_hash("admin")).to eq(expected_hash_de)
      expect(ExtraLocalesController.bundle_js_hash("admin")).to eq(expected_hash_de)

      I18n.locale = :fr
      ExtraLocalesController.expects(:bundle_js).with("admin").returns("admin_js FR").once
      expected_hash_fr = Digest::MD5.hexdigest("admin_js FR")

      expect(ExtraLocalesController.bundle_js_hash("admin")).to eq(expected_hash_fr)
      expect(ExtraLocalesController.bundle_js_hash("admin")).to eq(expected_hash_fr)

      I18n.locale = :de
      expect(ExtraLocalesController.bundle_js_hash("admin")).to eq(expected_hash_de)

      ExtraLocalesController.expects(:bundle_js).with("wizard").returns("wizard_js DE").once
      expected_hash_de = Digest::MD5.hexdigest("wizard_js DE")

      expect(ExtraLocalesController.bundle_js_hash("wizard")).to eq(expected_hash_de)
      expect(ExtraLocalesController.bundle_js_hash("wizard")).to eq(expected_hash_de)
    end
  end

  describe ".client_overrides_exist?" do
    after do
      I18n.reload!
      ExtraLocalesController.clear_cache!
    end

    it "returns false if there are no client-side translation overrides" do
      expect(ExtraLocalesController.client_overrides_exist?).to eq(false)

      TranslationOverride.upsert!(I18n.locale, 'server.some_key', 'server-side translation')
      expect(ExtraLocalesController.client_overrides_exist?).to eq(false)
    end

    it "returns true if there are client-side translation overrides" do
      expect(ExtraLocalesController.client_overrides_exist?).to eq(false)

      TranslationOverride.upsert!(I18n.locale, 'js.some_key', 'client-side translation')
      expect(ExtraLocalesController.client_overrides_exist?).to eq(true)
    end
  end
end