UX: Show extra details in failure popup when translation fails

app/services/discourse_translator/amazon.rb

@@ -135,6 +135,8 @@ def self.translate!(translatable, target_locale_sym = I18n.locale)
       rescue Aws::Translate::Errors::UnsupportedLanguagePairException
         raise I18n.t(
                 "translator.failed",
+                content_type:
+                  I18n.t("translator.type_of_content.#{translatable.class.name.downcase}"),
                 source_locale: detected_lang,
                 target_locale: target_locale_sym,
               )

app/services/discourse_translator/base.rb

@@ -43,6 +43,8 @@ def self.translate(translatable, target_locale_sym = I18n.locale)
         raise TranslatorError.new(
                 I18n.t(
                   "translator.failed",
+                  content_type:
+                    I18n.t("translator.type_of_content.#{translatable.class.name.downcase}"),
                   source_locale: detected_lang,
                   target_locale: target_locale_sym,
                 ),

config/locales/server.en.yml

@@ -24,11 +24,15 @@ en:
     experimental_inline_translation: "Enable experimental inline translation feature. This replaces existing parallel translation, allowing site visitors with a non-default locale to view content in their language."
     automatic_translation_target_languages: "The languages to automatically translate user content (posts, topics) to. If empty, no languages will be automatically translated."
   translator:
-    failed: "The translator is unable to translate this content (%{source_locale}) to the default language of this site (%{target_locale})."
+    failed: "The translator is unable to translate this %{content_type} (%{source_locale}) to your language (%{target_locale})."
     not_supported: "This language is not supported by the translator."
     too_long: "This post is too long to be translated by the translator."
     not_available: "The translator service is currently not available."
     api_timeout: "The translator service took too long to respond. Please try again later."
+    type_of_content:
+      topic: "topic's title"
+      post: "post's content"
+
     amazon:
       invalid_credentials: "The provided credentials for AWS translate are invalid."
 

spec/services/amazon_spec.rb

@@ -67,7 +67,12 @@
 
     it "raises an error when trying to translate an unsupported language" do
       expect { described_class.translate(post) }.to raise_error(
-        I18n.t("translator.failed", source_locale: "en", target_locale: "es"),
+        I18n.t(
+          "translator.failed",
+          content_type: I18n.t("translator.type_of_content.post"),
+          source_locale: "en",
+          target_locale: "es",
+        ),
       )
     end
   end

spec/services/google_spec.rb

@@ -143,7 +143,12 @@
       )
 
       expect { described_class.translate(post) }.to raise_error(
-        I18n.t("translator.failed", source_locale: "cat", target_locale: "dog"),
+        I18n.t(
+          "translator.failed",
+          content_type: I18n.t("translator.type_of_content.post"),
+          source_locale: "cat",
+          target_locale: "dog",
+        ),
       )
     end
 

spec/services/microsoft_spec.rb

@@ -169,7 +169,12 @@ def translate_endpoint
 
         expect { described_class.translate(post) }.to raise_error(
           DiscourseTranslator::TranslatorError,
-          I18n.t("translator.failed", source_locale: "donkey", target_locale: I18n.locale),
+          I18n.t(
+            "translator.failed",
+            content_type: I18n.t("translator.type_of_content.post"),
+            source_locale: "donkey",
+            target_locale: I18n.locale,
+          ),
         )
       end