fluxtokens 1.0.0

use serde::{Deserialize, Serialize};

/// A message in the conversation
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Message {
    pub role: String,
    pub content: Option<MessageContent>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub name: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub tool_call_id: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub tool_calls: Option<Vec<ToolCall>>,
}

impl Message {
    /// Create a system message
    pub fn system(content: impl Into<String>) -> Self {
        Self {
            role: "system".to_string(),
            content: Some(MessageContent::Text(content.into())),
            name: None,
            tool_call_id: None,
            tool_calls: None,
        }
    }

    /// Create a user message
    pub fn user(content: impl Into<String>) -> Self {
        Self {
            role: "user".to_string(),
            content: Some(MessageContent::Text(content.into())),
            name: None,
            tool_call_id: None,
            tool_calls: None,
        }
    }

    /// Create an assistant message
    pub fn assistant(content: impl Into<String>) -> Self {
        Self {
            role: "assistant".to_string(),
            content: Some(MessageContent::Text(content.into())),
            name: None,
            tool_call_id: None,
            tool_calls: None,
        }
    }
}

/// Message content - either text or multimodal parts
#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(untagged)]
pub enum MessageContent {
    Text(String),
    Parts(Vec<ContentPart>),
}

/// A part of multimodal content
#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(tag = "type")]
pub enum ContentPart {
    #[serde(rename = "text")]
    Text { text: String },
    #[serde(rename = "image_url")]
    ImageUrl { image_url: ImageUrl },
    #[serde(rename = "input_audio")]
    InputAudio { input_audio: InputAudio },
    #[serde(rename = "video_url")]
    VideoUrl { video_url: VideoUrl },
}

/// Image URL details
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ImageUrl {
    pub url: String,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub detail: Option<String>,
}

/// Audio input details
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct InputAudio {
    pub data: String,
    pub format: String,
}

/// Video URL details
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct VideoUrl {
    pub url: String,
}

/// Tool call from the model
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ToolCall {
    pub id: String,
    #[serde(rename = "type")]
    pub call_type: String,
    pub function: FunctionCall,
}

/// Function call details
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct FunctionCall {
    pub name: String,
    pub arguments: String,
}

/// Chat completion request
#[derive(Debug, Clone, Serialize)]
pub struct ChatCompletionRequest {
    pub model: String,
    pub messages: Vec<Message>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub temperature: Option<f64>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub max_tokens: Option<u32>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub top_p: Option<f64>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub top_k: Option<u32>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub frequency_penalty: Option<f64>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub presence_penalty: Option<f64>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub stop: Option<Vec<String>>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub stream: Option<bool>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub user: Option<String>,
}

impl ChatCompletionRequest {
    /// Create a new chat completion request
    pub fn new(model: impl Into<String>) -> Self {
        Self {
            model: model.into(),
            messages: Vec::new(),
            temperature: None,
            max_tokens: None,
            top_p: None,
            top_k: None,
            frequency_penalty: None,
            presence_penalty: None,
            stop: None,
            stream: None,
            user: None,
        }
    }

    /// Set the messages
    pub fn messages(mut self, messages: Vec<Message>) -> Self {
        self.messages = messages;
        self
    }

    /// Set the temperature
    pub fn temperature(mut self, temperature: f64) -> Self {
        self.temperature = Some(temperature);
        self
    }

    /// Set the max tokens
    pub fn max_tokens(mut self, max_tokens: u32) -> Self {
        self.max_tokens = Some(max_tokens);
        self
    }

    /// Set top_p
    pub fn top_p(mut self, top_p: f64) -> Self {
        self.top_p = Some(top_p);
        self
    }

    /// Set streaming
    pub fn stream(mut self, stream: bool) -> Self {
        self.stream = Some(stream);
        self
    }
}

/// Chat completion response
#[derive(Debug, Clone, Deserialize)]
pub struct ChatCompletionResponse {
    pub id: String,
    pub object: String,
    pub created: i64,
    pub model: String,
    pub choices: Vec<Choice>,
    pub usage: Usage,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub system_fingerprint: Option<String>,
}

/// A completion choice
#[derive(Debug, Clone, Deserialize)]
pub struct Choice {
    pub index: u32,
    pub message: AssistantMessage,
    pub finish_reason: Option<String>,
}

/// Assistant message in response
#[derive(Debug, Clone, Deserialize)]
pub struct AssistantMessage {
    pub role: String,
    pub content: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub tool_calls: Option<Vec<ToolCall>>,
}

/// Token usage information
#[derive(Debug, Clone, Deserialize)]
pub struct Usage {
    pub prompt_tokens: u32,
    pub completion_tokens: u32,
    pub total_tokens: u32,
}

/// Streaming chunk
#[derive(Debug, Clone, Deserialize)]
pub struct ChatCompletionChunk {
    pub id: String,
    pub object: String,
    pub created: i64,
    pub model: String,
    pub choices: Vec<StreamChoice>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub usage: Option<Usage>,
}

/// Streaming choice
#[derive(Debug, Clone, Deserialize)]
pub struct StreamChoice {
    pub index: u32,
    pub delta: DeltaMessage,
    pub finish_reason: Option<String>,
}

/// Delta message in streaming
#[derive(Debug, Clone, Deserialize)]
pub struct DeltaMessage {
    #[serde(skip_serializing_if = "Option::is_none")]
    pub role: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub content: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub tool_calls: Option<Vec<ToolCall>>,
}