mod api_response;
mod app;
mod config;
mod error_middleware;
mod health;
mod http_error;
mod logging;
mod request_context;
mod response_headers;
mod state;

use tokio::net::TcpListener;
use tracing::info;

use crate::{app::build_router, config::AppConfig, logging::init_tracing, state::AppState};

#[tokio::main]
async fn main() -> Result<(), std::io::Error> {
    // 统一先从配置对象读取监听地址，避免后续把环境变量读取散落到入口和路由层。
    let config = AppConfig::from_env();
    init_tracing(&config)?;

    let bind_address = config.bind_socket_addr();
    let listener = TcpListener::bind(bind_address).await?;

    let state = AppState::new(config);
    let router = build_router(state);

    info!(%bind_address, "api-server 已完成 tracing 初始化并开始监听");

    axum::serve(listener, router).await
}