Class: Gemini::Response

Inherits:
Object
  • Object
show all
Defined in:
lib/gemini/response.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(response_data) ⇒ Response

Returns a new instance of Response.



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# File 'lib/gemini/response.rb', line 6

def initialize(response_data)
  @raw_data = response_data
end

Instance Attribute Details

#raw_data ⇒ Object (readonly)

Raw response data from API



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# File 'lib/gemini/response.rb', line 4

def raw_data
  @raw_data
end

Instance Method Details

#as_json_array(model_class) ⇒ Object 



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# File 'lib/gemini/response.rb', line 603

def as_json_array(model_class)
  json_data = json
  return [] unless json_data && json_data.is_a?(Array)
  
  begin
    json_data.map do |item|
      if model_class.respond_to?(:from_json)
        model_class.from_json(item)
      elsif defined?(ActiveModel::Model) && model_class.ancestors.include?(ActiveModel::Model)
        model_class.new(item)
      else
        instance = model_class.new
        
        item.each do |key, value|
          setter_method = "#{key}="
          if instance.respond_to?(setter_method)
            instance.send(setter_method, value)
          end
        end
        
        instance
      end
    end
  rescue => e
    []
  end
end

#as_json_object(model_class) ⇒ Object 



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# File 'lib/gemini/response.rb', line 577

def as_json_object(model_class)
  json_data = json
  return nil unless json_data
  
  begin
    if model_class.respond_to?(:from_json)
      model_class.from_json(json_data)
    elsif defined?(ActiveModel::Model) && model_class.ancestors.include?(ActiveModel::Model)
      model_class.new(json_data)
    else
      instance = model_class.new
      
      json_data.each do |key, value|
        setter_method = "#{key}="
        if instance.respond_to?(setter_method)
          instance.send(setter_method, value)
        end
      end
      
      instance
    end
  rescue => e
    nil
  end
end

#as_json_with_keys(*keys) ⇒ Object 



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# File 'lib/gemini/response.rb', line 631

def as_json_with_keys(*keys)
  json_data = json
  return [] unless json_data && json_data.is_a?(Array)
  
  json_data.map do |item|
    keys.each_with_object({}) do |key, result|
      result[key.to_s] = item[key.to_s] if item.key?(key.to_s)
    end
  end
end

#audio_data ⇒ Object

Base64-encoded audio data from a TTS response



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# File 'lib/gemini/response.rb', line 61

def audio_data
  part = audio_part
  return nil unless part
  data_key = part["inlineData"] || part["inline_data"]
  data_key["data"]
end

#audio_mime_type ⇒ Object

MIME type of the audio payload (e.g. “audio/L16;codec=pcm;rate=24000”)



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# File 'lib/gemini/response.rb', line 69

def audio_mime_type
  part = audio_part
  return nil unless part
  data_key = part["inlineData"] || part["inline_data"]
  data_key["mimeType"] || data_key["mime_type"]
end

#audio_part ⇒ Object

Get the first audio inlineData part (TTS responses use camelCase “inlineData”)



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# File 'lib/gemini/response.rb', line 49

def audio_part
  return nil unless valid?

  parts.find do |part|
    data_key = part["inlineData"] || part["inline_data"]
    next false unless data_key
    mt = data_key["mimeType"] || data_key["mime_type"]
    mt.is_a?(String) && mt.start_with?("audio/")
  end
end

#audio_response? ⇒ Boolean

True if the response contains audio inlineData

Returns:

  • (Boolean) 


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# File 'lib/gemini/response.rb', line 77

def audio_response?
  !audio_part.nil?
end

#build_function_call_parts_with_signature ⇒ Object

関数呼び出しにSignatureを付与してパーツを構築



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# File 'lib/gemini/response.rb', line 397

def build_function_call_parts_with_signature
  function_call_parts = parts.select { |p| p['functionCall'] }
  signature = first_thought_signature

  function_call_parts.map.with_index do |part, index|
    fc_part = { functionCall: part['functionCall'] }
    # 最初のパートにのみSignatureを付与
    fc_part[:thoughtSignature] = signature if index == 0 && signature
    fc_part
  end
end

#cached_content_token_count ⇒ Object

Cached content token count reported by countTokens



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# File 'lib/gemini/response.rb', line 323

def cached_content_token_count
  @raw_data&.dig("cachedContentTokenCount") || 0
end

#candidates ⇒ Object

Get all candidates (if multiple candidates are present)



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# File 'lib/gemini/response.rb', line 141

def candidates
  @raw_data&.dig("candidates") || []
end

#completion_tokens ⇒ Object

Get number of tokens used for completion



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# File 'lib/gemini/response.rb', line 301

def completion_tokens
  usage&.dig("candidateTokens") || 0
end

#count_tokens ⇒ Object

Total tokens reported by the countTokens API (top-level totalTokens)



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# File 'lib/gemini/response.rb', line 318

def count_tokens
  @raw_data&.dig("totalTokens")
end

#count_tokens_response? ⇒ Boolean

Check whether this response is a countTokens API result

Returns:

  • (Boolean) 


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# File 'lib/gemini/response.rb', line 311

def count_tokens_response?
  !@raw_data.nil? && @raw_data.key?("totalTokens") &&
    !@raw_data.key?("candidates") && !@raw_data.key?("predictions") &&
    !embedding_response?
end

#embedding ⇒ Object

Get the embedding values as an Array of Floats. For single embedContent responses returns the values array. For batchEmbedContents responses returns the first embedding’s values.



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# File 'lib/gemini/response.rb', line 164

def embedding
  return nil unless @raw_data
  if @raw_data["embedding"].is_a?(Hash)
    @raw_data["embedding"]["values"]
  elsif @raw_data["embeddings"].is_a?(Array) && @raw_data["embeddings"].first.is_a?(Hash)
    @raw_data["embeddings"].first["values"]
  end
end

#embedding_dimension ⇒ Object

Get the dimensionality (length) of the first embedding vector



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# File 'lib/gemini/response.rb', line 188

def embedding_dimension
  values = embedding
  values.is_a?(Array) ? values.length : 0
end

#embedding_response? ⇒ Boolean

Check if the raw response contains embedding data

Returns:

  • (Boolean) 


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# File 'lib/gemini/response.rb', line 155

def embedding_response?
  return false if @raw_data.nil?
  (@raw_data.key?("embedding") && !@raw_data["embedding"].nil?) ||
    (@raw_data.key?("embeddings") && @raw_data["embeddings"].is_a?(Array) && !@raw_data["embeddings"].empty?)
end

#embeddings ⇒ Object

Get all embedding value arrays for batch responses. Returns an Array of Arrays of Floats. For single embedContent responses, returns a single-element array.



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# File 'lib/gemini/response.rb', line 176

def embeddings
  return [] unless @raw_data
  if @raw_data["embeddings"].is_a?(Array)
    @raw_data["embeddings"].map { |e| e["values"] }.compact
  elsif @raw_data["embedding"].is_a?(Hash) && @raw_data["embedding"]["values"]
    [@raw_data["embedding"]["values"]]
  else
    []
  end
end

#error ⇒ Object

Get error message if any



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# File 'lib/gemini/response.rb', line 194

def error
  return nil if valid?
  
  # Return nil for empty responses (to display "Empty response" in to_s method)
  return nil if @raw_data.nil? || @raw_data.empty?
  
  @raw_data&.dig("error", "message") || "Unknown error"
end

#finish_reason ⇒ Object

Get finish reason (STOP, SAFETY, etc.)



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# File 'lib/gemini/response.rb', line 209

def finish_reason
  first_candidate&.dig("finishReason")
end

#first_candidate ⇒ Object

Get the first candidate



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# File 'lib/gemini/response.rb', line 136

def first_candidate
  @raw_data&.dig("candidates", 0)
end

#first_thought_signature ⇒ Object

最初のThought Signatureを取得



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# File 'lib/gemini/response.rb', line 377

def first_thought_signature
  thought_signatures.first
end

#formatted_text ⇒ Object

Get formatted text (HTML/markdown, etc.)



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# File 'lib/gemini/response.rb', line 21

def formatted_text
  return nil unless valid?
  
  text # Currently returns plain text, but could add formatting in the future
end

#full_content ⇒ Object

Get all content with string representation



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# File 'lib/gemini/response.rb', line 123

def full_content
  parts.map do |part|
    if part.key?("text")
      part["text"]
    elsif part.key?("inline_data") && part["inline_data"]["mime_type"].start_with?("image/")
      "[IMAGE: #{part["inline_data"]["mime_type"]}]"
    else
      "[UNKNOWN CONTENT]"
    end
  end.join("\n")
end

#function_calls ⇒ Object

Get function call information



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# File 'lib/gemini/response.rb', line 349

def function_calls
  parts = first_candidate.dig("content", "parts") || []
  parts.map { |part| part["functionCall"] }.compact
end

#gemini_3? ⇒ Boolean

Gemini 3系かどうか

Returns:

  • (Boolean) 


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# File 'lib/gemini/response.rb', line 392

def gemini_3?
  model_version&.start_with?('gemini-3') || false
end

#grounded? ⇒ Boolean

Check if response has grounding metadata

Returns:

  • (Boolean) 


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# File 'lib/gemini/response.rb', line 224

def grounded?
  !grounding_metadata.nil? && !grounding_metadata.empty?
end

#grounding_chunks ⇒ Object

Get grounding chunks (source references)



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# File 'lib/gemini/response.rb', line 229

def grounding_chunks
  grounding_metadata&.dig("groundingChunks") || []
end

#grounding_metadata ⇒ Object

Get grounding metadata (for Google Search grounding)



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# File 'lib/gemini/response.rb', line 219

def grounding_metadata
  first_candidate&.dig("groundingMetadata")
end

#grounding_sources ⇒ Object

Get formatted grounding sources (simplified access)



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# File 'lib/gemini/response.rb', line 239

def grounding_sources
  return [] unless grounded?

  grounding_chunks.map do |chunk|
    if chunk["web"]
      {
        url: chunk["web"]["uri"],
        title: chunk["web"]["title"],
        type: "web"
      }
    else
      # Handle other potential chunk types
      {
        type: "unknown",
        data: chunk
      }
    end
  end
end

#has_thought_signature? ⇒ Boolean

Signatureが存在するか

Returns:

  • (Boolean) 


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# File 'lib/gemini/response.rb', line 382

def has_thought_signature?
  !thought_signatures.empty?
end

#image ⇒ Object

画像生成結果から最初の画像を取得（Base64エンコード形式）



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# File 'lib/gemini/response.rb', line 410

def image
  images.first
end

#image_mime_types ⇒ Object

画像のMIMEタイプを取得



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# File 'lib/gemini/response.rb', line 471

def image_mime_types
  return [] unless valid?
  
  if first_candidate&.dig("content", "parts")
    first_candidate["content"]["parts"]
      .select { |part| part.key?("inline_data") && part["inline_data"]["mime_type"].start_with?("image/") }
      .map { |part| part["inline_data"]["mime_type"] }
  else
    # Imagen 3のデフォルトはPNG
    Array.new(images.size, "image/png")
  end
end

#image_parts ⇒ Object

Get image parts (if any)



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# File 'lib/gemini/response.rb', line 42

def image_parts
  return [] unless valid?

  parts.select { |part| part.key?("inline_data") && part["inline_data"]["mime_type"].start_with?("image/") }
end

#image_urls ⇒ Object

Get image URLs from multimodal responses (if any)



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# File 'lib/gemini/response.rb', line 340

def image_urls
  return [] unless valid?
  
  first_candidate&.dig("content", "parts")
    &.select { |part| part.key?("image_url") }
    &.map { |part| part.dig("image_url", "url") } || []
end

#images ⇒ Object

画像生成結果からすべての画像を取得（Base64エンコード形式の配列）



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# File 'lib/gemini/response.rb', line 415

def images
  image_array = []
  return image_array unless @raw_data
  
  # Gemini 2.0スタイルレスポンスを正確に解析
  # キーはcamelCase形式で使用されているので注意（inlineDataなど）
  if @raw_data.key?('candidates') && !@raw_data['candidates'].empty?
    candidate = @raw_data['candidates'][0]
    if candidate.key?('content') && candidate['content'].key?('parts')
      parts = candidate['content']['parts']
      
      parts.each do |part|
        # キャメルケースでアクセス（inlineData）
        if part.key?('inlineData')
          inline_data = part['inlineData']
          if inline_data.key?('mimeType') && 
             inline_data['mimeType'].to_s.start_with?('image/') &&
             inline_data.key?('data')
            
            # 画像データを追加
            image_array << inline_data['data']
            puts "画像データを検出しました: #{inline_data['mimeType']}" if ENV["DEBUG"]
          end
        end
      end
    end
  # Imagen 3スタイルレスポンスのチェック
  elsif @raw_data.key?('predictions')
    @raw_data['predictions'].each do |pred|
      if pred.key?('bytesBase64Encoded')
        image_array << pred['bytesBase64Encoded']
        puts "Imagen 3形式の画像データを検出しました" if ENV["DEBUG"]
      end
    end
  end
  
  # フォールバック：直接JSONから抽出
  if image_array.empty?
    puts "標準的な方法で画像データが見つかりませんでした。正規表現による抽出を試みます..." if ENV["DEBUG"]
    raw_json = @raw_data.to_json
    
    # "data"キーで長いBase64文字列を検索
    base64_matches = raw_json.scan(/"data":"([A-Za-z0-9+\/=]{100,})"/)
    if !base64_matches.empty?
      puts "検出したBase64データ: #{base64_matches.size}個" if ENV["DEBUG"]
      base64_matches.each do |match|
        image_array << match[0]
      end
    end
  end
  
  puts "検出した画像データ数: #{image_array.size}" if ENV["DEBUG"]
  image_array
end

#inspect ⇒ Object

Inspection method for debugging



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# File 'lib/gemini/response.rb', line 552

def inspect
  "#<Gemini::Response text=#{text ? text[0..30] + (text.length > 30 ? '...' : '') : 'nil'} success=#{success?}>"
end

#json ⇒ Object 



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# File 'lib/gemini/response.rb', line 556

def json
  return nil unless valid?
  
  text_content = text
  return nil unless text_content
  
  begin
    if text_content.strip.start_with?('{') || text_content.strip.start_with?('[')
      JSON.parse(text_content)
    else
      nil
    end
  rescue JSON::ParserError => e
    nil
  end
end

#json? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/gemini/response.rb', line 573

def json?
  !json.nil?
end

#model_version ⇒ Object

モデルバージョンを取得



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# File 'lib/gemini/response.rb', line 387

def model_version
  @raw_data['modelVersion']
end

#parts ⇒ Object

Get all content parts



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# File 'lib/gemini/response.rb', line 28

def parts
  return [] unless valid?
  
  first_candidate&.dig("content", "parts") || []
end

#prompt_tokens ⇒ Object

Get number of prompt tokens used



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# File 'lib/gemini/response.rb', line 296

def prompt_tokens
  usage&.dig("promptTokens") || 0
end

#prompt_tokens_details ⇒ Object

Per-modality token breakdown reported by countTokens



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# File 'lib/gemini/response.rb', line 328

def prompt_tokens_details
  @raw_data&.dig("promptTokensDetails") || []
end

#retrieved_urls ⇒ Object

Get retrieved URLs from URL context



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# File 'lib/gemini/response.rb', line 270

def retrieved_urls
  return [] unless url_context?

  url_context_metadata&.dig("urlMetadata") || []
end

#role ⇒ Object

Get response role (usually “model”)



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# File 'lib/gemini/response.rb', line 355

def role
  first_candidate&.dig("content", "role")
end

#safety_blocked? ⇒ Boolean

Check if response was blocked for safety reasons

Returns:

  • (Boolean) 


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# File 'lib/gemini/response.rb', line 214

def safety_blocked?
  finish_reason == "SAFETY"
end

#safety_ratings ⇒ Object

Get safety ratings



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# File 'lib/gemini/response.rb', line 360

def safety_ratings
  first_candidate&.dig("safetyRatings") || []
end

#save_audio(filepath) ⇒ Object

Save audio to a file. PCM (L16) payloads are wrapped in a WAV header so the result is directly playable; other audio MIME types are written as-is. Returns the written file path or nil if no audio is present.



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# File 'lib/gemini/response.rb', line 84

def save_audio(filepath)
  data_b64 = audio_data
  return nil unless data_b64

  require 'base64'
  raw = Base64.strict_decode64(data_b64)
  mime = audio_mime_type.to_s

  if mime.include?("L16") || mime.include?("pcm")
    rate = mime[/rate=(\d+)/, 1]&.to_i || 24000
    channels = 1
    bits_per_sample = 16
    byte_rate = rate * channels * bits_per_sample / 8
    block_align = channels * bits_per_sample / 8
    data_size = raw.bytesize

    header = +""
    header << "RIFF"
    header << [36 + data_size].pack("V")
    header << "WAVE"
    header << "fmt "
    header << [16].pack("V")
    header << [1].pack("v")
    header << [channels].pack("v")
    header << [rate].pack("V")
    header << [byte_rate].pack("V")
    header << [block_align].pack("v")
    header << [bits_per_sample].pack("v")
    header << "data"
    header << [data_size].pack("V")

    File.binwrite(filepath, header + raw)
  else
    File.binwrite(filepath, raw)
  end
  filepath
end

#save_image(filepath) ⇒ Object

最初の画像をファイルに保存



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# File 'lib/gemini/response.rb', line 485

def save_image(filepath)
  save_images([filepath]).first
end

#save_images(filepaths) ⇒ Object

複数の画像をファイルに保存



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# File 'lib/gemini/response.rb', line 490

def save_images(filepaths)
  require 'base64'
  
  result = []
  image_data = images
  
  puts "保存する画像データ数: #{image_data.size}" if ENV["DEBUG"]
  
  # ファイルパスと画像データの数が一致しない場合
  if filepaths.size < image_data.size
    puts "警告: ファイルパスの数(#{filepaths.size})が画像データの数(#{image_data.size})より少ないです" if ENV["DEBUG"]
    # ファイルパスの数に合わせて画像データを切り詰める
    image_data = image_data[0...filepaths.size]
  elsif filepaths.size > image_data.size
    puts "警告: ファイルパスの数(#{filepaths.size})が画像データの数(#{image_data.size})より多いです" if ENV["DEBUG"]
    # 画像データの数に合わせてファイルパスを切り詰める
    filepaths = filepaths[0...image_data.size]
  end
  
  image_data.each_with_index do |data, i|
    begin
      if !data || data.empty?
        puts "警告: インデックス #{i} の画像データが空です" if ENV["DEBUG"]
        result << nil
        next
      end
      
      # データがBase64エンコードされていることを確認
      if data.match?(/^[A-Za-z0-9+\/=]+$/)
        # 一般的なBase64データ
        decoded_data = Base64.strict_decode64(data)
      else
        # データプレフィックスがある場合など（例: data:image/png;base64,xxxxx）
        if data.include?('base64,')
          base64_part = data.split('base64,').last
          decoded_data = Base64.strict_decode64(base64_part)
        else
          puts "警告: インデックス #{i} のデータはBase64形式ではありません" if ENV["DEBUG"]
          decoded_data = data # 既にバイナリかもしれない
        end
      end
      
      File.open(filepaths[i], 'wb') do |f|
        f.write(decoded_data)
      end
      result << filepaths[i]
    rescue => e
      puts "エラー: 画像 #{i} の保存中にエラーが発生しました: #{e.message}" if ENV["DEBUG"]
      puts e.backtrace.join("\n") if ENV["DEBUG"]
      result << nil
    end
  end
  
  result
end

#search_entry_point ⇒ Object

Get search entry point URL (if available)



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# File 'lib/gemini/response.rb', line 234

def search_entry_point
  grounding_metadata&.dig("searchEntryPoint", "renderedContent")
end

#stream_chunks ⇒ Object

Process chunks for streaming responses



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# File 'lib/gemini/response.rb', line 333

def stream_chunks
  return [] unless @raw_data.is_a?(Array)
  
  @raw_data
end

#success? ⇒ Boolean

Check if response was successful

Returns:

  • (Boolean) 


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# File 'lib/gemini/response.rb', line 204

def success?
  valid? && !@raw_data.key?("error")
end

#text ⇒ Object

Get simple text response (combines multiple parts if present)



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# File 'lib/gemini/response.rb', line 11

def text
  return nil unless valid?
  
  first_candidate&.dig("content", "parts")
    &.select { |part| part.key?("text") }
    &.map { |part| part["text"] }
    &.join("\n") || ""
end

#text_parts ⇒ Object

Get all text parts as an array



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# File 'lib/gemini/response.rb', line 35

def text_parts
  return [] unless valid?
  
  parts.select { |part| part.key?("text") }.map { |part| part["text"] }
end

#thought_signatures ⇒ Object

Thought Signatureを取得（配列）



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# File 'lib/gemini/response.rb', line 372

def thought_signatures
  parts.filter_map { |p| p['thoughtSignature'] }
end

#thoughts_token_count ⇒ Object

思考トークン数を取得



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# File 'lib/gemini/response.rb', line 367

def thoughts_token_count
  @raw_data.dig('usageMetadata', 'thoughtsTokenCount')
end

#to_formatted_json(pretty: false) ⇒ Object 



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# File 'lib/gemini/response.rb', line 642

def to_formatted_json(pretty: false)
  json_data = json
  return nil unless json_data
  
  if pretty
    JSON.pretty_generate(json_data)
  else
    JSON.generate(json_data)
  end
end

#to_s ⇒ Object

Override to_s method to return text



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# File 'lib/gemini/response.rb', line 547

def to_s
  text || error || "Empty response"
end

#total_tokens ⇒ Object

Get total tokens used



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# File 'lib/gemini/response.rb', line 306

def total_tokens
  usage&.dig("totalTokens") || 0
end

#url_context? ⇒ Boolean

Check if response has URL context metadata

Returns:

  • (Boolean) 


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# File 'lib/gemini/response.rb', line 265

def url_context?
  !url_context_metadata.nil? && !url_context_metadata.empty?
end

#url_context_metadata ⇒ Object

Get URL context metadata (for URL Context tool)



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# File 'lib/gemini/response.rb', line 260

def url_context_metadata
  first_candidate&.dig("urlContextMetadata")
end

#url_retrieval_statuses ⇒ Object

Get URL retrieval statuses



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# File 'lib/gemini/response.rb', line 277

def url_retrieval_statuses
  return [] unless url_context?

  retrieved_urls.map do |url_info|
    {
      url: url_info["retrievedUrl"],
      status: url_info["urlRetrievalStatus"],
      title: url_info["title"]
    }
  end
end

#usage ⇒ Object

Get token usage information



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# File 'lib/gemini/response.rb', line 291

def usage
  @raw_data&.dig("usage") || {}
end

#valid? ⇒ Boolean

Check if response is valid

Returns:

  • (Boolean) 


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# File 'lib/gemini/response.rb', line 146

def valid?
  !@raw_data.nil? &&
  ((@raw_data.key?("candidates") && !@raw_data["candidates"].empty?) ||
   (@raw_data.key?("predictions") && !@raw_data["predictions"].empty?) ||
   embedding_response? ||
   count_tokens_response?)
end