"""直接访问页面并捕获服务端错误"""
import re
import urllib.request
import urllib.error
import http.cookiejar

BASE_URL = "http://localhost:3000"

# 创建 cookie jar
cookie_jar = http.cookiejar.CookieJar()
opener = urllib.request.build_opener(urllib.request.HTTPCookieProcessor(cookie_jar))

# 1. 获取 CSRF token
print(">>> 获取 CSRF token...")
try:
    resp = opener.open(f"{BASE_URL}/api/auth/csrf", timeout=10)
    csrf_data = resp.read().decode()
    print(f"CSRF 响应: {csrf_data[:200]}")
    import json
    csrf_json = json.loads(csrf_data)
    csrf_token = csrf_json.get("csrfToken", "")
    print(f"CSRF token: {csrf_token[:20]}...")
except Exception as e:
    print(f"获取 CSRF 失败: {e}")
    exit(1)

# 2. 登录
print("\n>>> 登录...")
login_data = urllib.parse.urlencode({
    "email": "t_chinese_1@xiaoxue.edu.cn",
    "password": "123456",
    "csrfToken": csrf_token,
    "callbackUrl": "/teacher/dashboard",
    "json": "true",
}).encode()

try:
    req = urllib.request.Request(
        f"{BASE_URL}/api/auth/callback/credentials",
        data=login_data,
        method="POST",
    )
    resp = opener.open(req, timeout=15)
    print(f"登录响应状态: {resp.status}")
    print(f"登录响应 URL: {resp.url}")
except urllib.error.HTTPError as e:
    print(f"登录 HTTP 错误: {e.code} {e.reason}")
    body = e.read().decode()
    print(f"响应: {body[:500]}")
except Exception as e:
    print(f"登录失败: {e}")

# 3. 访问备课列表页
print("\n>>> 访问 /teacher/lesson-plans...")
try:
    req = urllib.request.Request(f"{BASE_URL}/teacher/lesson-plans")
    resp = opener.open(req, timeout=30)
    body = resp.read().decode()
    print(f"HTTP 状态: {resp.status}")
    print(f"响应长度: {len(body)}")

    # 找到错误消息
    error_messages = re.findall(r'data-next-error-message="([^"]+)"', body)
    if error_messages:
        print(f"\n=== 错误消息 ({len(error_messages)} 条) ===")
        for msg in error_messages:
            msg = msg.replace("&lt;", "<").replace("&gt;", ">").replace("&quot;", '"').replace("&#x27;", "'").replace("&amp;", "&")
            print(f"\n{msg[:2000]}")

    # 找到错误堆栈
    error_stacks = re.findall(r'data-next-error-stack="([^"]+)"', body)
    if error_stacks:
        print(f"\n=== 错误堆栈 ===")
        for stack in error_stacks[:1]:
            stack = stack.replace("&lt;", "<").replace("&gt;", ">").replace("&quot;", '"').replace("&#x27;", "'").replace("&amp;", "&")
            print(stack[:5000])
    else:
        # 输出前 2000 字符
        print(f"\n响应前 2000 字符:\n{body[:2000]}")

except urllib.error.HTTPError as e:
    print(f"HTTP 错误: {e.code} {e.reason}")
    body = e.read().decode()
    print(f"响应长度: {len(body)}")

    # 找到错误消息
    error_messages = re.findall(r'data-next-error-message="([^"]+)"', body)
    if error_messages:
        print(f"\n=== 错误消息 ({len(error_messages)} 条) ===")
        for msg in error_messages:
            msg = msg.replace("&lt;", "<").replace("&gt;", ">").replace("&quot;", '"').replace("&#x27;", "'").replace("&amp;", "&")
            print(f"\n{msg[:2000]}")

    # 找到错误堆栈
    error_stacks = re.findall(r'data-next-error-stack="([^"]+)"', body)
    if error_stacks:
        print(f"\n=== 错误堆栈 ===")
        for stack in error_stacks[:1]:
            stack = stack.replace("&lt;", "<").replace("&gt;", ">").replace("&quot;", '"').replace("&#x27;", "'").replace("&amp;", "&")
            print(stack[:5000])
    else:
        print(f"\n响应前 2000 字符:\n{body[:2000]}")
except Exception as e:
    print(f"访问失败: {e}")