"""
企微IT智能服务台 — 在 8001 端口启动后端 + 测试
绕过 8000 端口的僵尸 socket 问题
"""
import subprocess
import sys
import time
import urllib.request
import urllib.error
import json

PYTHON = r"C:\Users\simon\AppData\Local\Programs\Python\Python312\python.exe"
BACKEND_DIR = r"C:\Users\simon\wecom_it_smart_desk\backend"
PORT = 8001  # 换端口！8000 有僵尸 socket


def wait_backend_ready(max_wait=20):
    """等待后端 /health 返回 200"""
    start = time.time()
    while time.time() - start < max_wait:
        try:
            req = urllib.request.Request(f"http://localhost:{PORT}/health")
            with urllib.request.urlopen(req, timeout=3) as resp:
                if resp.status == 200:
                    print(f"  后端已就绪（耗时 {time.time() - start:.1f} 秒）")
                    return True
        except Exception:
            pass
        time.sleep(1)
    print(f"  ⚠️ 后端就绪等待超时（{max_wait} 秒）")
    return False


def test_endpoint(method, path, data=None):
    """测试单个 HTTP 端点"""
    url = f"http://localhost:{PORT}{path}"
    body = json.dumps(data).encode() if data else None
    headers = {"Content-Type": "application/json"} if data else {}
    req = urllib.request.Request(url, data=body, headers=headers, method=method)
    try:
        with urllib.request.urlopen(req, timeout=5) as resp:
            return resp.status, resp.read().decode("utf-8", errors="replace")[:500]
    except urllib.error.HTTPError as e:
        return e.code, e.read().decode("utf-8", errors="replace")[:500]
    except Exception as e:
        return 0, str(e)


if __name__ == "__main__":
    # Step 1: 先试着杀掉 8001 端口的进程（以防之前用过）
    print("=" * 60)
    print("Step 1: 清理端口 8001")
    print("=" * 60)
    r = subprocess.run(["netstat", "-ano"], capture_output=True, text=True)
    for line in r.stdout.splitlines():
        if ":8001" in line and "LISTENING" in line:
            pid = line.strip().split()[-1]
            if pid.isdigit():
                print(f"  杀掉 PID={pid}")
                subprocess.run(["taskkill", "/F", "/PID", pid], capture_output=True)
    print("  OK")

    # Step 2: 启动后端
    print()
    print("=" * 60)
    print("Step 2: 在端口 8001 启动后端")
    print("=" * 60)
    log_file = open(
        r"C:\Users\simon\wecom_it_smart_desk\backend_log_8001.txt",
        "w", encoding="utf-8"
    )
    backend_proc = subprocess.Popen(
        [PYTHON, "-m", "uvicorn", "app.main:app",
         "--host", "0.0.0.0", "--port", str(PORT)],
        cwd=BACKEND_DIR,
        stdout=log_file,
        stderr=subprocess.STDOUT,
    )
    print(f"  后端进程已启动 (PID={backend_proc.pid})")

    # Step 3: 等待就绪
    print()
    print("=" * 60)
    print("Step 3: 等待后端就绪")
    print("=" * 60)
    if not wait_backend_ready():
        # 读取日志看看什么情况
        log_file.close()
        time.sleep(1)
        try:
            with open(r"C:\Users\simon\wecom_it_smart_desk\backend_log_8001.txt",
                       "r", encoding="utf-8", errors="replace") as f:
                print(f.read()[-2000:])
        except:
            pass
        sys.exit(1)

    # Step 4: 测试端点
    print()
    print("=" * 60)
    print("Step 4: 测试所有端点")
    print("=" * 60)
    tests = [
        ("GET", "/health", None, "健康检查"),
        ("GET", "/api/test-ping", None, "诊断 Ping"),
        ("GET", "/api/test-error", None, "诊断 Error（测试异常捕获）"),
        ("POST", "/api/agents/login",
         {"user_id": "test_diag", "name": "诊断用户"}, "坐席登录"),
        ("GET", "/api/agents", None, "坐席列表"),
    ]
    for method, path, data, desc in tests:
        status, body = test_endpoint(method, path, data)
        icon = "✅" if (200 <= status < 300) else "❌"
        print(f"  {icon} {method} {path} => {status}")
        for line in body.strip().splitlines():
            print(f"     {line}")

    # Step 5: 读取后端日志
    print()
    print("=" * 60)
    print("Step 5: 后端日志（含错误堆栈）")
    print("=" * 60)
    time.sleep(1)
    log_file.close()
    try:
        with open(r"C:\Users\simon\wecom_it_smart_desk\backend_log_8001.txt",
                   "r", encoding="utf-8", errors="replace") as f:
            lines = f.read().strip().splitlines()
        if len(lines) > 60:
            print(f"  （日志共 {len(lines)} 行，显示最后 60 行）")
            lines = lines[-60:]
        for line in lines:
            print(f"  {line}")
    except Exception as e:
        print(f"  读取日志失败: {e}")

    print()
    print("=" * 60)
    print("🎉 测试完成！")
    print(f"   后端地址: http://localhost:{PORT}")
    print(f"   后端 PID: {backend_proc.pid}")
    print(f"   停止命令: taskkill /F /PID {backend_proc.pid}")
    print("")
    print("   ⚠️ 前端需要更新代理端口到 8001")
    print("   请在 PowerShell 执行以下命令更新前端：")
    print(f"   (见下方提示)")
    print("=" * 60)