claude-code-api 0.1.3

OpenAI-compatible API gateway for Claude Code CLI
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use serde::{Deserialize, Serialize};
use serde_json::Value;

#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct ChatCompletionRequest {
    pub model: String,
    pub messages: Vec<ChatMessage>,
    #[serde(default)]
    pub temperature: Option<f32>,
    #[serde(default)]
    pub top_p: Option<f32>,
    #[serde(default)]
    pub n: Option<i32>,
    #[serde(default)]
    pub stream: Option<bool>,
    #[serde(default)]
    pub stop: Option<Vec<String>>,
    #[serde(default)]
    pub max_tokens: Option<i32>,
    #[serde(default)]
    pub presence_penalty: Option<f32>,
    #[serde(default)]
    pub frequency_penalty: Option<f32>,
    #[serde(default)]
    pub logit_bias: Option<Value>,
    #[serde(default)]
    pub user: Option<String>,
    #[serde(default)]
    pub conversation_id: Option<String>,
}

#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct ChatMessage {
    pub role: String,
    pub content: MessageContent,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub name: Option<String>,
}

#[derive(Debug, Serialize, Deserialize, Clone)]
#[serde(untagged)]
pub enum MessageContent {
    Text(String),
    Array(Vec<ContentPart>),
}

#[derive(Debug, Serialize, Deserialize, Clone)]
#[serde(tag = "type")]
pub enum ContentPart {
    #[serde(rename = "text")]
    Text { text: String },
    #[serde(rename = "image_url")]
    ImageUrl { image_url: ImageUrl },
}

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

#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct ChatCompletionResponse {
    pub id: String,
    pub object: String,
    pub created: i64,
    pub model: String,
    pub choices: Vec<ChatChoice>,
    pub usage: Usage,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub conversation_id: Option<String>,
}

#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct ChatChoice {
    pub index: i32,
    pub message: ChatMessage,
    pub finish_reason: Option<String>,
}

#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct Usage {
    pub prompt_tokens: i32,
    pub completion_tokens: i32,
    pub total_tokens: i32,
}

#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct ChatCompletionStreamResponse {
    pub id: String,
    pub object: String,
    pub created: i64,
    pub model: String,
    pub choices: Vec<StreamChoice>,
}

#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct StreamChoice {
    pub index: i32,
    pub delta: DeltaMessage,
    pub finish_reason: Option<String>,
}

#[derive(Debug, Serialize, Deserialize, Clone, Default)]
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>,
}

#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct Model {
    pub id: String,
    pub object: String,
    pub created: i64,
    pub owned_by: String,
}

#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct ModelList {
    pub object: String,
    pub data: Vec<Model>,
}

impl Default for ChatCompletionRequest {
    fn default() -> Self {
        Self {
            model: "claude-3-opus-20240229".to_string(),
            messages: vec![],
            temperature: None,
            top_p: None,
            n: Some(1),
            stream: Some(false),
            stop: None,
            max_tokens: None,
            presence_penalty: None,
            frequency_penalty: None,
            logit_bias: None,
            user: None,
            conversation_id: None,
        }
    }
}