#!/usr/bin/env python3
"""
LQMDRetrieval 服务启动脚本
"""
import sys
import os
import socket

project_root = os.path.dirname(os.path.abspath(__file__))
sys.path.insert(0, project_root)
sys.path.insert(0, os.path.join(project_root, 'src'))

from src.app.core.config import config_handler


def check_port(host: str, port: int) -> bool:
    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
        try:
            s.bind((host, port))
            return True
        except OSError:
            return False


def find_available_port(host: str, start_port: int = 8000, max_port: int = 8010) -> int:
    for port in range(start_port, max_port + 1):
        if check_port(host, port):
            return port
    return None


def main():
    import uvicorn

    host = config_handler.get("retrieval_app", "HOST", "0.0.0.0")
    port = config_handler.get_int("retrieval_app", "PORT", 8000)
    reload = config_handler.get_bool("retrieval_app", "RELOAD", True)
    debug = config_handler.get_bool("retrieval_app", "DEBUG", True)
    print(f"host={host}, port={port}")

    if not check_port(host, port):
        print(f"⚠️  端口 {port} 已被占用，正在查找可用端口...")
        available_port = find_available_port(host, port, port + 10)
        if available_port:
            port = available_port
            print(f"✅ 找到可用端口: {port}")
        else:
            print(f"❌ 未找到可用端口 (尝试范围: {port}-{port+10})")
            sys.exit(1)

    print("=" * 70)
    print(f"🚀 正在启动 {config_handler.get('retrieval_app', 'APP_NAME', '多维度检索')} v{config_handler.get('retrieval_app', 'APP_VERSION', '1.0.0')}")
    print("=" * 70)
    print(f"📍 服务地址: http://{host}:{port}")
    print(f" API文档: http://{host}:{port}/docs")
    print(f"🔧 调试模式: {'开启' if debug else '关闭'}")
    print(f"🔄 热重载: {'开启' if reload else '关闭'}")
    print("=" * 70)

    try:
        reload_dirs = [os.path.join(project_root, "src")] if reload else None

        uvicorn.run(
            "src.app.server.app:app",
            host=host,
            port=port,
            reload=reload,
            reload_dirs=reload_dirs,
            log_level=config_handler.get("retrieval_app", "LOG_LEVEL", "INFO").lower(),
            access_log=True,
            use_colors=True
        )
    except KeyboardInterrupt:
        print("\n👋 服务已停止")
    except Exception as e:
        print(f"❌ 服务启动失败: {e}")
        import traceback
        traceback.print_exc()
        sys.exit(1)


if __name__ == "__main__":
    main()