zai-rs 0.1.15

use serde::{Deserialize, Serialize};

/// Tokenizer-capable models
#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(rename_all = "kebab-case")]
#[derive(Default)]
pub enum TokenizerModel {
    #[serde(rename = "glm-4-plus")]
    #[default]
    Glm4Plus,
    #[serde(rename = "glm-4-0520")]
    Glm40520,
    #[serde(rename = "glm-4-long")]
    Glm4Long,
    #[serde(rename = "glm-4-air")]
    Glm4Air,
    #[serde(rename = "glm-4-flash")]
    Glm4Flash,
}

/// One message item for tokenizer input
#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(tag = "role", rename_all = "lowercase")]
pub enum TokenizerMessage {
    /// 用户消息
    User { content: String },
    /// 系统消息
    System { content: String },
    /// 助手消息（content 可选）
    Assistant {
        #[serde(skip_serializing_if = "Option::is_none")]
        content: Option<String>,
    },
    /// 工具消息
    Tool { content: String },
}

/// Request body for tokenizer
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct TokenizerBody {
    /// 调用的模型代码（默认 glm-4-plus）
    pub model: TokenizerModel,
    /// 对话消息列表（至少 1 条）
    pub messages: Vec<TokenizerMessage>,
    /// 客户端请求 ID
    #[serde(skip_serializing_if = "Option::is_none")]
    pub request_id: Option<String>,
    /// 终端用户 ID
    #[serde(skip_serializing_if = "Option::is_none")]
    pub user_id: Option<String>,
}

impl TokenizerBody {
    pub fn new(model: TokenizerModel, messages: Vec<TokenizerMessage>) -> Self {
        Self {
            model,
            messages,
            request_id: None,
            user_id: None,
        }
    }
    pub fn with_request_id(mut self, v: impl Into<String>) -> Self {
        self.request_id = Some(v.into());
        self
    }
    pub fn with_user_id(mut self, v: impl Into<String>) -> Self {
        self.user_id = Some(v.into());
        self
    }
}