Source code for the custom Mastodon (Glitchsoc) instance on berserker.town.
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53 lines
1.4 KiB
53 lines
1.4 KiB
# frozen_string_literal: true
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class TranslationService::DeepL < TranslationService
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include JsonLdHelper
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def initialize(plan, api_key)
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super()
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@plan = plan
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@api_key = api_key
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end
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def translate(text, source_language, target_language)
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request(text, source_language, target_language).perform do |res|
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case res.code
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when 429
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raise TooManyRequestsError
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when 456
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raise QuotaExceededError
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when 200...300
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transform_response(res.body_with_limit)
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else
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raise UnexpectedResponseError
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end
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end
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end
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private
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def request(text, source_language, target_language)
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req = Request.new(:post, endpoint_url, form: { text: text, source_lang: source_language&.upcase, target_lang: target_language, tag_handling: 'html' })
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req.add_headers(Authorization: "DeepL-Auth-Key #{@api_key}")
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req
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end
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def endpoint_url
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if @plan == 'free'
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'https://api-free.deepl.com/v2/translate'
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else
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'https://api.deepl.com/v2/translate'
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end
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end
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def transform_response(str)
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json = Oj.load(str, mode: :strict)
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raise UnexpectedResponseError unless json.is_a?(Hash)
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Translation.new(text: json.dig('translations', 0, 'text'), detected_source_language: json.dig('translations', 0, 'detected_source_language')&.downcase, provider: 'DeepL.com')
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rescue Oj::ParseError
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raise UnexpectedResponseError
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end
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end
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