dependencies: [
    .package(url: "https://github.com/MacPaw/OpenAI.git", branch: "main")
]

let openAI = OpenAI(apiToken: "YOUR_TOKEN_HERE")

let configuration = OpenAI.Configuration(token: "YOUR_TOKEN_HERE", organizationIdentifier: "YOUR_ORGANIZATION_ID_HERE", timeoutInterval: 60.0)
let openAI = OpenAI(configuration: configuration)

struct CompletionsQuery: Codable {
    /// ID of the model to use.
    public let model: Model
    /// The prompt(s) to generate completions for, encoded as a string, array of strings, array of tokens, or array of token arrays.
    public let prompt: String
    /// What sampling temperature to use. Higher values means the model will take more risks. Try 0.9 for more creative applications, and 0 (argmax sampling) for ones with a well-defined answer.
    public let temperature: Double?
    /// The maximum number of tokens to generate in the completion.
    public let maxTokens: Int?
    /// An alternative to sampling with temperature, called nucleus sampling, where the model considers the results of the tokens with top_p probability mass. So 0.1 means only the tokens comprising the top 10% probability mass are considered.
    public let topP: Double?
    /// Number between -2.0 and 2.0. Positive values penalize new tokens based on their existing frequency in the text so far, decreasing the model's likelihood to repeat the same line verbatim.
    public let frequencyPenalty: Double?
    /// Number between -2.0 and 2.0. Positive values penalize new tokens based on whether they appear in the text so far, increasing the model's likelihood to talk about new topics.
    public let presencePenalty: Double?
    /// Up to 4 sequences where the API will stop generating further tokens. The returned text will not contain the stop sequence.
    public let stop: [String]?
    /// A unique identifier representing your end-user, which can help OpenAI to monitor and detect abuse.
    public let user: String?
}

struct CompletionsResult: Codable, Equatable {
    public struct Choice: Codable, Equatable {
        public let text: String
        public let index: Int
    }

    public let id: String
    public let object: String
    public let created: TimeInterval
    public let model: Model
    public let choices: [Choice]
    public let usage: Usage
}

let query = CompletionsQuery(model: .textDavinci_003, prompt: "What is 42?", temperature: 0, maxTokens: 100, topP: 1, frequencyPenalty: 0, presencePenalty: 0, stop: ["\\n"])
openAI.completions(query: query) { result in
  //Handle result here
}
//or
let result = try await openAI.completions(query: query)

openAI.completionsStream(query: query) { partialResult in
    switch partialResult {
    case .success(let result):
        print(result.choices)
    case .failure(let error):
        //Handle chunk error here
    }
} completion: { error in
    //Handle streaming error here
}

openAI
    .completionsStream(query: query)
    .sink { completion in
        //Handle completion result here
    } receiveValue: { result in
        //Handle chunk here
    }.store(in: &cancellables)

for try await result in openAI.completionsStream(query: query) {
   //Handle result here
}

 struct ChatQuery: Codable {
     /// ID of the model to use. Currently, only gpt-3.5-turbo and gpt-3.5-turbo-0301 are supported.
     public let model: Model
     /// The messages to generate chat completions for
     public let messages: [Chat]
     /// A list of functions the model may generate JSON inputs for.
     public let functions: [ChatFunctionDeclaration]?
     /// What sampling temperature to use, between 0 and 2. Higher values like 0.8 will make the output more random, while lower values like 0.2 will make it more focused and  We generally recommend altering this or top_p but not both.
     public let temperature: Double?
     /// An alternative to sampling with temperature, called nucleus sampling, where the model considers the results of the tokens with top_p probability mass. So 0.1 means only the tokens comprising the top 10% probability mass are considered.
     public let topP: Double?
     /// How many chat completion choices to generate for each input message.
     public let n: Int?
     /// Up to 4 sequences where the API will stop generating further tokens. The returned text will not contain the stop sequence.
     public let stop: [String]?
     /// The maximum number of tokens to generate in the completion.
     public let maxTokens: Int?
     /// Number between -2.0 and 2.0. Positive values penalize new tokens based on whether they appear in the text so far, increasing the model's likelihood to talk about new topics.
     public let presencePenalty: Double?
     /// Number between -2.0 and 2.0. Positive values penalize new tokens based on their existing frequency in the text so far, decreasing the model's likelihood to repeat the same line verbatim.
     public let frequencyPenalty: Double?
     ///Modify the likelihood of specified tokens appearing in the completion.
     public let logitBias: [String:Int]?
     /// A unique identifier representing your end-user, which can help OpenAI to monitor and detect abuse.
     public let user: String?
}

struct ChatResult: Codable, Equatable {
    public struct Choice: Codable, Equatable {
        public let index: Int
        public let message: Chat
        public let finishReason: String
    }
    
    public struct Usage: Codable, Equatable {
        public let promptTokens: Int
        public let completionTokens: Int
        public let totalTokens: Int
    }
    
    public let id: String
    public let object: String
    public let created: TimeInterval
    public let model: Model
    public let choices: [Choice]
    public let usage: Usage
}

let query = ChatQuery(model: .gpt3_5Turbo, messages: [.init(role: .user, content: "who are you")])
let result = try await openAI.chats(query: query)

openAI.chatsStream(query: query) { partialResult in
    switch partialResult {
    case .success(let result):
        print(result.choices)
    case .failure(let error):
        //Handle chunk error here
    }
} completion: { error in
    //Handle streaming error here
}

openAI
    .chatsStream(query: query)
    .sink { completion in
        //Handle completion result here
    } receiveValue: { result in
        //Handle chunk here
    }.store(in: &cancellables)

for try await result in openAI.chatsStream(query: query) {
   //Handle result here
}

let openAI = OpenAI(apiToken: "...")
// Declare functions which GPT-3 might decide to call.
let functions = [
  ChatFunctionDeclaration(
      name: "get_current_weather",
      description: "Get the current weather in a given location",
      parameters:
        JSONSchema(
          type: .object,
          properties: [
            "location": .init(type: .string, description: "The city and state, e.g. San Francisco, CA"),
            "unit": .init(type: .string, enumValues: ["celsius", "fahrenheit"])
          ],
          required: ["location"]
        )
  )
]
let query = ChatQuery(
  model: "gpt-3.5-turbo-0613",  // 0613 is the earliest version with function calls support.
  messages: [
      Chat(role: .user, content: "What's the weather like in Boston?")
  ],
  functions: functions
)
let result = try await openAI.chats(query: query)

struct ImagesQuery: Codable {
    /// A text description of the desired image(s). The maximum length is 1000 characters.
    public let prompt: String
    /// The number of images to generate. Must be between 1 and 10.
    public let n: Int?
    /// The size of the generated images. Must be one of 256x256, 512x512, or 1024x1024.
    public let size: String?
}

struct ImagesResult: Codable, Equatable {
    public struct URLResult: Codable, Equatable {
        public let url: String
    }
    public let created: TimeInterval
    public let data: [URLResult]
}

let query = ImagesQuery(prompt: "White cat with heterochromia sitting on the kitchen table", n: 1, size: "1024x1024")
openAI.images(query: query) { result in
  //Handle result here
}
//or
let result = try await openAI.images(query: query)

public struct ImageEditsQuery: Codable {
    /// The image to edit. Must be a valid PNG file, less than 4MB, and square. If mask is not provided, image must have transparency, which will be used as the mask.
    public let image: Data
    public let fileName: String
    /// An additional image whose fully transparent areas (e.g. where alpha is zero) indicate where image should be edited. Must be a valid PNG file, less than 4MB, and have the same dimensions as image.
    public let mask: Data?
    public let maskFileName: String?
    /// A text description of the desired image(s). The maximum length is 1000 characters.
    public let prompt: String
    /// The number of images to generate. Must be between 1 and 10.
    public let n: Int?
    /// The size of the generated images. Must be one of 256x256, 512x512, or 1024x1024.
    public let size: String?
}

let data = image.pngData()
let query = ImageEditQuery(image: data, fileName: "whitecat.png", prompt: "White cat with heterochromia sitting on the kitchen table with a bowl of food", n: 1, size: "1024x1024")
openAI.imageEdits(query: query) { result in
  //Handle result here
}
//or
let result = try await openAI.imageEdits(query: query)

public struct ImageVariationsQuery: Codable {
    /// The image to edit. Must be a valid PNG file, less than 4MB, and square. If mask is not provided, image must have transparency, which will be used as the mask.
    public let image: Data
    public let fileName: String
    /// The number of images to generate. Must be between 1 and 10.
    public let n: Int?
    /// The size of the generated images. Must be one of 256x256, 512x512, or 1024x1024.
    public let size: String?
}

let data = image.pngData()
let query = ImageVariationQuery(image: data, fileName: "whitecat.png", n: 1, size: "1024x1024")
openAI.imageVariations(query: query) { result in
  //Handle result here
}
//or
let result = try await openAI.imageVariations(query: query)

public struct AudioSpeechQuery: Codable, Equatable {
    //...
    public let model: Model // tts-1 or tts-1-hd  
    public let input: String
    public let voice: AudioSpeechVoice
    public let responseFormat: AudioSpeechResponseFormat
    public let speed: String? // Initializes with Double?
    //...
}

/// Audio data for one of the following formats :`mp3`, `opus`, `aac`, `flac`
public let audioData: Data?

let query = AudioSpeechQuery(model: .tts_1, input: "Hello, world!", voice: .alloy, responseFormat: .mp3, speed: 1.0)

openAI.audioCreateSpeech(query: query) { result in
    // Handle response here
}
//or
let result = try await openAI.audioCreateSpeech(query: query)

public struct AudioTranscriptionQuery: Codable, Equatable {
    
    public let file: Data
    public let fileName: String
    public let model: Model
    
    public let prompt: String?
    public let temperature: Double?
    public let language: String?
}

public struct AudioTranscriptionResult: Codable, Equatable {
    
    public let text: String
}

let data = Data(contentsOfURL:...)
let query = AudioTranscriptionQuery(file: data, fileName: "audio.m4a", model: .whisper_1)        

openAI.audioTranscriptions(query: query) { result in
    //Handle result here
}
//or
let result = try await openAI.audioTranscriptions(query: query)

public struct AudioTranslationQuery: Codable, Equatable {
    
    public let file: Data
    public let fileName: String
    public let model: Model
    
    public let prompt: String?
    public let temperature: Double?
}    

public struct AudioTranslationResult: Codable, Equatable {
    
    public let text: String
}

let data = Data(contentsOfURL:...)
let query = AudioTranslationQuery(file: data, fileName: "audio.m4a", model: .whisper_1)  

openAI.audioTranslations(query: query) { result in
    //Handle result here
}
//or
let result = try await openAI.audioTranslations(query: query)

struct EditsQuery: Codable {
    /// ID of the model to use.
    public let model: Model
    /// Input text to get embeddings for.
    public let input: String?
    /// The instruction that tells the model how to edit the prompt.
    public let instruction: String
    /// The number of images to generate. Must be between 1 and 10.
    public let n: Int?
    /// What sampling temperature to use. Higher values means the model will take more risks. Try 0.9 for more creative applications, and 0 (argmax sampling) for ones with a well-defined answer.
    public let temperature: Double?
    /// An alternative to sampling with temperature, called nucleus sampling, where the model considers the results of the tokens with top_p probability mass. So 0.1 means only the tokens comprising the top 10% probability mass are considered.
    public let topP: Double?
}

struct EditsResult: Codable, Equatable {
    
    public struct Choice: Codable, Equatable {
        public let text: String
        public let index: Int
    }

    public struct Usage: Codable, Equatable {
        public let promptTokens: Int
        public let completionTokens: Int
        public let totalTokens: Int
        
        enum CodingKeys: String, CodingKey {
            case promptTokens = "prompt_tokens"
            case completionTokens = "completion_tokens"
            case totalTokens = "total_tokens"
        }
    }
    
    public let object: String
    public let created: TimeInterval
    public let choices: [Choice]
    public let usage: Usage
}

let query = EditsQuery(model: .gpt4, input: "What day of the wek is it?", instruction: "Fix the spelling mistakes")
openAI.edits(query: query) { result in
  //Handle response here
}
//or
let result = try await openAI.edits(query: query)

struct EmbeddingsQuery: Codable {
    /// ID of the model to use.
    public let model: Model
    /// Input text to get embeddings for
    public let input: String
}

struct EmbeddingsResult: Codable, Equatable {

    public struct Embedding: Codable, Equatable {

        public let object: String
        public let embedding: [Double]
        public let index: Int
    }
    public let data: [Embedding]
    public let usage: Usage
}

let query = EmbeddingsQuery(model: .textSearchBabbageDoc, input: "The food was delicious and the waiter...")
openAI.embeddings(query: query) { result in
  //Handle response here
}
//or
let result = try await openAI.embeddings(query: query)

public extension Model {
    static let gpt4_turbo_preview = "gpt-4-turbo-preview"
    static let gpt4_vision_preview = "gpt-4-vision-preview"
    static let gpt4_0125_preview = "gpt-4-0125-preview"
    static let gpt4_1106_preview = "gpt-4-1106-preview"
    static let gpt4 = "gpt-4"
    static let gpt4_0613 = "gpt-4-0613"
    static let gpt4_0314 = "gpt-4-0314"
    static let gpt4_32k = "gpt-4-32k"
    static let gpt4_32k_0613 = "gpt-4-32k-0613"
    static let gpt4_32k_0314 = "gpt-4-32k-0314"
    
    static let gpt3_5Turbo = "gpt-3.5-turbo"
    static let gpt3_5Turbo_0125 = "gpt-3.5-turbo-0125"
    static let gpt3_5Turbo_1106 = "gpt-3.5-turbo-1106"
    static let gpt3_5Turbo_0613 = "gpt-3.5-turbo-0613"
    static let gpt3_5Turbo_0301 = "gpt-3.5-turbo-0301"
    static let gpt3_5Turbo_16k = "gpt-3.5-turbo-16k"
    static let gpt3_5Turbo_16k_0613 = "gpt-3.5-turbo-16k-0613"
    
    static let textDavinci_003 = "text-davinci-003"
    static let textDavinci_002 = "text-davinci-002"
    static let textCurie = "text-curie-001"
    static let textBabbage = "text-babbage-001"
    static let textAda = "text-ada-001"
    
    static let textDavinci_001 = "text-davinci-001"
    static let codeDavinciEdit_001 = "code-davinci-edit-001"
    
    static let tts_1 = "tts-1"
    static let tts_1_hd = "tts-1-hd"
    
    static let whisper_1 = "whisper-1"

    static let dall_e_2 = "dall-e-2"
    static let dall_e_3 = "dall-e-3"
    
    static let davinci = "davinci"
    static let curie = "curie"
    static let babbage = "babbage"
    static let ada = "ada"
    
    static let textEmbeddingAda = "text-embedding-ada-002"
    static let textSearchAda = "text-search-ada-doc-001"
    static let textSearchBabbageDoc = "text-search-babbage-doc-001"
    static let textSearchBabbageQuery001 = "text-search-babbage-query-001"
    static let textEmbedding3 = "text-embedding-3-small"
    static let textEmbedding3Large = "text-embedding-3-large"
    
    static let textModerationStable = "text-moderation-stable"
    static let textModerationLatest = "text-moderation-latest"
    static let moderation = "text-moderation-007"
}

let query = ChatQuery(model: .gpt4_turbo_preview, messages: [
    .init(role: .system, content: "You are Librarian-GPT. You know everything about the books."),
    .init(role: .user, content: "Who wrote Harry Potter?")
])
let result = try await openAI.chats(query: query)
XCTAssertFalse(result.choices.isEmpty)

public struct ModelsResult: Codable, Equatable {
    
    public let data: [ModelResult]
    public let object: String
}

openAI.models() { result in
  //Handle result here
}
//or
let result = try await openAI.models()

public struct ModelQuery: Codable, Equatable {
    
    public let model: Model
}    

public struct ModelResult: Codable, Equatable {

    public let id: Model
    public let object: String
    public let ownedBy: String
}

let query = ModelQuery(model: .gpt4)
openAI.model(query: query) { result in
  //Handle result here
}
//or
let result = try await openAI.model(query: query)

public struct ModerationsQuery: Codable {
    
    public let input: String
    public let model: Model?
}    

public struct ModerationsResult: Codable, Equatable {

    public let id: String
    public let model: Model
    public let results: [CategoryResult]
}

let query = ModerationsQuery(input: "I want to kill them.")
openAI.moderations(query: query) { result in
  //Handle result here
}
//or
let result = try await openAI.moderations(query: query)

public struct Vector {

    /// Returns the similarity between two vectors
    ///
    /// - Parameters:
    ///     - a: The first vector
    ///     - b: The second vector
    public static func cosineSimilarity(a: [Double], b: [Double]) -> Double {
        return dot(a, b) / (mag(a) * mag(b))
    }

    /// Returns the difference between two vectors. Cosine distance is defined as `1 - cosineSimilarity(a, b)`
    ///
    /// - Parameters:
    ///     - a: The first vector
    ///     - b: The second vector
    public func cosineDifference(a: [Double], b: [Double]) -> Double {
        return 1 - Self.cosineSimilarity(a: a, b: b)
    }
}

let vector1 = [0.213123, 0.3214124, 0.421412, 0.3214521251, 0.412412, 0.3214124, 0.1414124, 0.3214521251, 0.213123, 0.3214124, 0.1414124, 0.4214214, 0.213123, 0.3214124, 0.1414124, 0.3214521251, 0.213123, 0.3214124, 0.1414124, 0.3214521251]
let vector2 = [0.213123, 0.3214124, 0.1414124, 0.3214521251, 0.213123, 0.3214124, 0.1414124, 0.3214521251, 0.213123, 0.511515, 0.1414124, 0.3214521251, 0.213123, 0.3214124, 0.1414124, 0.3214521251, 0.213123, 0.3214124, 0.1414124, 0.3213213]
let similarity = Vector.cosineSimilarity(a: vector1, b: vector2)
print(similarity) //0.9510201910206734

func completions(query: CompletionsQuery) -> AnyPublisher<CompletionsResult, Error>
func images(query: ImagesQuery) -> AnyPublisher<ImagesResult, Error>
func embeddings(query: EmbeddingsQuery) -> AnyPublisher<EmbeddingsResult, Error>
func chats(query: ChatQuery) -> AnyPublisher<ChatResult, Error>
func edits(query: EditsQuery) -> AnyPublisher<EditsResult, Error>
func model(query: ModelQuery) -> AnyPublisher<ModelResult, Error>
func models() -> AnyPublisher<ModelsResult, Error>
func moderations(query: ModerationsQuery) -> AnyPublisher<ModerationsResult, Error>
func audioTranscriptions(query: AudioTranscriptionQuery) -> AnyPublisher<AudioTranscriptionResult, Error>
func audioTranslations(query: AudioTranslationQuery) -> AnyPublisher<AudioTranslationResult, Error>