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45 lines
1.2 KiB
Ruby
45 lines
1.2 KiB
Ruby
# frozen_string_literal: true
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class TranslationService::LibreTranslate < TranslationService
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def initialize(base_url, api_key)
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super()
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@base_url = base_url
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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 403
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raise QuotaExceededError
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when 200...300
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transform_response(res.body_with_limit, source_language)
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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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body = Oj.dump(q: text, source: source_language.presence || 'auto', target: target_language, format: 'html', api_key: @api_key)
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req = Request.new(:post, "#{@base_url}/translate", body: body)
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req.add_headers('Content-Type': 'application/json')
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req
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end
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def transform_response(str, source_language)
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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['translatedText'], detected_source_language: source_language)
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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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