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# Pull Request Template ## Description This PR changes to translation to properly handle different content types during translation. ### Changes 1. **Email translation with HTML support** - Properly detects and preserves HTML content from emails - Sets `mime_type` to 'text/html' when HTML content is present 2. **Email translation with plain text support** - Falls back to email text content when HTML is not available - Sets `mime_type` to 'text/plain' when HTML is not available and content type includes 'text/plain' 3. **Plain message with plain text support (Non email channels)** - Sets `mime_type` to 'text/plain' for non-email channels - Fixes an issue where Markdown formatting was being lost due to incorrect `mime_type` **Note**: Translation for very long emails is not currently supported. Fixes https://linear.app/chatwoot/issue/CW-4244/translate-button-doesnt-work-in-email-channels ## Type of change - [x] Bug fix (non-breaking change which fixes an issue) - [x] New feature (non-breaking change which adds functionality) ## How Has This Been Tested? **Loom video** https://www.loom.com/share/8f8428ed2cfe415ea5cb6c547c070f00?sid=eab9fa11-05f8-4838-9181-334bee1023c4 ## Checklist: - [x] My code follows the style guidelines of this project - [x] I have performed a self-review of my code - [x] I have commented on my code, particularly in hard-to-understand areas - [ ] I have made corresponding changes to the documentation - [x] My changes generate no new warnings - [x] I have added tests that prove my fix is effective or that my feature works - [x] New and existing unit tests pass locally with my changes - [ ] Any dependent changes have been merged and published in downstream modules
73 lines
1.7 KiB
Ruby
73 lines
1.7 KiB
Ruby
require 'google/cloud/translate/v3'
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class Integrations::GoogleTranslate::ProcessorService
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pattr_initialize [:message!, :target_language!]
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def perform
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return if hook.blank?
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content = translation_content
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return if content.blank?
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response = client.translate_text(
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contents: [content],
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target_language_code: target_language,
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parent: "projects/#{hook.settings['project_id']}",
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mime_type: mime_type
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)
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return if response.translations.first.blank?
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response.translations.first.translated_text
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end
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private
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def email_channel?
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message&.inbox&.email?
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end
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def email_content
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@email_content ||= {
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html: message.content_attributes.dig('email', 'html_content', 'full'),
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text: message.content_attributes.dig('email', 'text_content', 'full'),
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content_type: message.content_attributes.dig('email', 'content_type')
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}
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end
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def html_content_available?
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email_content[:html].present?
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end
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def plain_text_content_available?
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email_content[:content_type]&.include?('text/plain') &&
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email_content[:text].present?
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end
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def translation_content
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return message.content unless email_channel?
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return email_content[:html] if html_content_available?
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return email_content[:text] if plain_text_content_available?
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message.content
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end
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def mime_type
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if email_channel? && html_content_available?
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'text/html'
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else
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'text/plain'
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end
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end
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def hook
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@hook ||= message.account.hooks.find_by(app_id: 'google_translate')
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end
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def client
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@client ||= ::Google::Cloud::Translate::V3::TranslationService::Client.new do |config|
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config.credentials = hook.settings['credentials']
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end
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end
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end
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