use serde_json::{json, Value};
use std::io::{self, Read};

#[derive(serde::Deserialize)]
struct ExecuteRequest {
    context: Value,
    inputs: Value,
    config: Value,
}

#[derive(serde::Serialize)]
struct ExecuteResponse {
    success: bool,
    output: Option<String>,
    result: Option<Value>,
    error: Option<String>,
}

fn main() {
    let mut input = String::new();
    io::stdin().read_to_string(&mut input).unwrap();
    
    let req: ExecuteRequest = serde_json::from_str(&input).unwrap();
    let result = execute(&req.context, &req.inputs, &req.config);
    
    println!("{}", serde_json::to_string(&result).unwrap());
}

fn execute(context: &Value, inputs: &Value, config: &Value) -> ExecuteResponse {
    let code = config["code"].as_str().unwrap_or("");
    
    if code.is_empty() {
        return ExecuteResponse {
            success: false,
            output: None,
            result: None,
            error: Some("没有提供Rust代码".to_string()),
        };
    }
    
    // 这里可以实现Rust代码的动态执行
    // 目前返回示例结果
    ExecuteResponse {
        success: true,
        output: Some("Rust代码执行完成".to_string()),
        result: Some(json!({
            "language": "rust",
            "code_length": code.len(),
            "execution_time": 0.05
        })),
        error: None,
    }
}
