Class: OpenAI::Chat

Inherits:
Object
  • Object
show all
Defined in:
lib/openai/chat.rb,
lib/openai/chat/version.rb

Defined Under Namespace

Classes: InputClassificationError

Constant Summary collapse

VERSION = 
"0.0.6"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(api_token: nil) ⇒ Chat

Returns a new instance of Chat.



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# File 'lib/openai/chat.rb', line 9

def initialize(api_token: nil)
  @api_token = api_token || ENV.fetch("OPENAI_TOKEN")
  @messages = []
  @model = "gpt-4.1-nano"
end

Instance Attribute Details

#messages ⇒ Object

Returns the value of attribute messages.



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# File 'lib/openai/chat.rb', line 7

def messages
  @messages
end

#model ⇒ Object

Returns the value of attribute model.



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# File 'lib/openai/chat.rb', line 7

def model
  @model
end

#schema ⇒ Object

Returns the value of attribute schema.



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# File 'lib/openai/chat.rb', line 7

def schema
  @schema
end

Instance Method Details

#assistant(content) ⇒ Object 



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# File 'lib/openai/chat.rb', line 93

def assistant(content)
  messages.push({role: "assistant", content: content})
end

#assistant! ⇒ Object 



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# File 'lib/openai/chat.rb', line 97

def assistant!
  request_headers_hash = {
    "Authorization" => "Bearer #{@api_token}",
    "content-type" => "application/json"
  }

  response_format = if schema.nil?
    {
      "type" => "text"
    }
  else
    {
      "type" => "json_schema",
      "json_schema" => JSON.parse(schema)
    }
  end

  request_body_hash = {
    "model" => model,
    "response_format" => response_format,
    "messages" => messages
  }

  request_body_json = JSON.generate(request_body_hash)

  uri = URI("https://api.openai.com/v1/chat/completions")
  raw_response = Net::HTTP.start(uri.host, uri.port, use_ssl: true) do |http|
    request = Net::HTTP::Post.new(uri, request_headers_hash)
    request.body = request_body_json
    http.request(request)
  end

  parsed_response = JSON.parse(raw_response.body)

  content = parsed_response.fetch("choices").at(0).fetch("message").fetch("content")

  messages.push({role: "assistant", content: content})

  schema.nil? ? content : JSON.parse(content)
end

#inspect ⇒ Object 



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# File 'lib/openai/chat.rb', line 138

def inspect
  "#<#{self.class.name} @messages=#{messages.inspect} @model=#{@model.inspect} @schema=#{@schema.inspect}>"
end

#system(content) ⇒ Object 



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# File 'lib/openai/chat.rb', line 15

def system(content)
  messages.push({role: "system", content: content})
end

#user(content, image: nil, images: nil) ⇒ Object 



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# File 'lib/openai/chat.rb', line 19

def user(content, image: nil, images: nil)
  if content.is_a?(Array)
    processed_content = content.map do |item|
      if item.key?("image") || item.key?(:image)
        image_value = item.fetch("image") { item.fetch(:image) }
        {
          type: "image_url",
          image_url: {
            url: process_image(image_value)
          }
        }
      elsif item.key?("text") || item.key?(:text)
        text_value = item.fetch("text") { item.fetch(:text) }
        {
          type: "text",
          text: text_value
        }
      else
        item
      end
    end

    messages.push(
      {
        role: "user",
        content: processed_content
      }
    )
  elsif image.nil? && images.nil?
    messages.push(
      {
        role: "user",
        content: content
      }
    )
  else
    text_and_images_array = [
      {
        type: "text",
        text: content
      }
    ]

    if images && !images.empty?
      images_array = images.map do |image|
        {
          type: "image_url",
          image_url: {
            url: process_image(image)
          }
        }
      end

      text_and_images_array += images_array
    else
      text_and_images_array.push(
        {
          type: "image_url",
          image_url: {
            url: process_image(image)
          }
        }
      )
    end

    messages.push(
      {
        role: "user",
        content: text_and_images_array
      }
    )
  end
end