"""
认证 API 测试
测试覆盖: /api/v1/auth/register, /api/v1/auth/login, /api/v1/auth/refresh, /api/v1/auth/logout
使用 SQLite 内存数据库，通过 conftest.py 的 client fixture 注入测试数据库会话
"""
import pytest
from datetime import timedelta
from httpx import AsyncClient

from app.services.auth import create_access_token, create_refresh_token
from app.middleware.rate_limit import RateLimitMiddleware


def _find_rate_limiter(app_or_middleware):
    """递归遍历中间件栈，找到 RateLimitMiddleware 实例"""
    if isinstance(app_or_middleware, RateLimitMiddleware):
        return app_or_middleware
    inner = getattr(app_or_middleware, "app", None)
    if inner is not None and inner is not app_or_middleware:
        return _find_rate_limiter(inner)
    return None


@pytest.fixture(autouse=True)
async def _reset_rate_limiter(client: AsyncClient):
    """
    每个测试函数执行前清除速率限制器的内存计数，避免跨测试 429 错误。
    依赖 client fixture 确保 ASGI 应用的中间件栈已经构建完毕。
    """
    from app.main import app as fastapi_app

    if fastapi_app.middleware_stack is not None:
        rl = _find_rate_limiter(fastapi_app.middleware_stack)
        if rl is not None:
            rl.requests.clear()
    yield


# ==================== 辅助函数 ====================


async def register_user(
    client: AsyncClient,
    email: str = "test@example.com",
    phone: str = None,
    password: str = "Test1234!",
    name: str = "测试用户",
    role: str = "brand",
) -> dict:
    """注册用户并返回响应对象"""
    payload = {
        "password": password,
        "name": name,
        "role": role,
    }
    if email is not None:
        payload["email"] = email
    if phone is not None:
        payload["phone"] = phone
    response = await client.post("/api/v1/auth/register", json=payload)
    return response


async def login_user(
    client: AsyncClient,
    email: str = "test@example.com",
    phone: str = None,
    password: str = "Test1234!",
) -> dict:
    """登录用户并返回响应对象"""
    payload = {"password": password}
    if email is not None:
        payload["email"] = email
    if phone is not None:
        payload["phone"] = phone
    response = await client.post("/api/v1/auth/login", json=payload)
    return response


async def register_and_get_tokens(
    client: AsyncClient,
    email: str = "test@example.com",
    phone: str = None,
    password: str = "Test1234!",
    name: str = "测试用户",
    role: str = "brand",
) -> dict:
    """注册用户并返回 token 和用户信息"""
    resp = await register_user(client, email=email, phone=phone, password=password, name=name, role=role)
    assert resp.status_code == 201
    return resp.json()


# ==================== 注册测试 ====================


class TestRegister:
    """POST /api/v1/auth/register 测试"""

    @pytest.mark.asyncio
    async def test_register_with_email_success(self, client: AsyncClient):
        """通过邮箱注册成功"""
        resp = await register_user(client, email="user@example.com", role="brand")
        assert resp.status_code == 201

        data = resp.json()
        assert "access_token" in data
        assert "refresh_token" in data
        assert data["token_type"] == "bearer"
        assert "user" in data

        user = data["user"]
        assert user["email"] == "user@example.com"
        assert user["name"] == "测试用户"
        assert user["role"] == "brand"
        assert user["is_verified"] is False

    @pytest.mark.asyncio
    async def test_register_with_phone_success(self, client: AsyncClient):
        """通过手机号注册成功"""
        resp = await register_user(client, email=None, phone="13800138000", role="creator")
        assert resp.status_code == 201

        data = resp.json()
        assert "access_token" in data
        assert "refresh_token" in data

        user = data["user"]
        assert user["phone"] == "13800138000"
        assert user["email"] is None
        assert user["role"] == "creator"

    @pytest.mark.asyncio
    async def test_register_with_both_email_and_phone(self, client: AsyncClient):
        """同时提供邮箱和手机号注册成功"""
        resp = await register_user(
            client,
            email="both@example.com",
            phone="13900139000",
            role="agency",
        )
        assert resp.status_code == 201

        user = resp.json()["user"]
        assert user["email"] == "both@example.com"
        assert user["phone"] == "13900139000"
        assert user["role"] == "agency"

    @pytest.mark.asyncio
    async def test_register_missing_email_and_phone_returns_400(self, client: AsyncClient):
        """不提供邮箱和手机号时返回 400"""
        resp = await register_user(client, email=None, phone=None)
        assert resp.status_code == 400

        data = resp.json()
        assert "detail" in data
        assert "邮箱" in data["detail"] or "手机号" in data["detail"]

    @pytest.mark.asyncio
    async def test_register_duplicate_email_returns_400(self, client: AsyncClient):
        """重复邮箱注册返回 400"""
        # 第一次注册
        resp1 = await register_user(client, email="dup@example.com")
        assert resp1.status_code == 201

        # 第二次用相同邮箱注册
        resp2 = await register_user(client, email="dup@example.com", name="另一个用户")
        assert resp2.status_code == 400

        data = resp2.json()
        assert "已被注册" in data["detail"]

    @pytest.mark.asyncio
    async def test_register_duplicate_phone_returns_400(self, client: AsyncClient):
        """重复手机号注册返回 400"""
        # 第一次注册
        resp1 = await register_user(client, email=None, phone="13800000001")
        assert resp1.status_code == 201

        # 第二次用相同手机号注册
        resp2 = await register_user(client, email=None, phone="13800000001", name="另一个用户")
        assert resp2.status_code == 400

        data = resp2.json()
        assert "已被注册" in data["detail"]

    @pytest.mark.asyncio
    async def test_register_password_too_short_returns_422(self, client: AsyncClient):
        """密码过短 (< 6 字符) 返回 422 (Pydantic 验证错误)"""
        resp = await register_user(client, email="short@example.com", password="123")
        assert resp.status_code == 422

    @pytest.mark.asyncio
    async def test_register_missing_password_returns_422(self, client: AsyncClient):
        """缺少密码字段返回 422"""
        payload = {
            "email": "nopwd@example.com",
            "name": "测试",
            "role": "brand",
        }
        resp = await client.post("/api/v1/auth/register", json=payload)
        assert resp.status_code == 422

    @pytest.mark.asyncio
    async def test_register_missing_name_returns_422(self, client: AsyncClient):
        """缺少 name 字段返回 422"""
        payload = {
            "email": "noname@example.com",
            "password": "Test1234!",
            "role": "brand",
        }
        resp = await client.post("/api/v1/auth/register", json=payload)
        assert resp.status_code == 422

    @pytest.mark.asyncio
    async def test_register_missing_role_returns_422(self, client: AsyncClient):
        """缺少 role 字段返回 422"""
        payload = {
            "email": "norole@example.com",
            "password": "Test1234!",
            "name": "测试用户",
        }
        resp = await client.post("/api/v1/auth/register", json=payload)
        assert resp.status_code == 422

    @pytest.mark.asyncio
    async def test_register_invalid_role_returns_422(self, client: AsyncClient):
        """无效的 role 值返回 422"""
        resp = await register_user(client, email="badrole@example.com", role="admin")
        assert resp.status_code == 422

    @pytest.mark.asyncio
    async def test_register_invalid_email_format_returns_422(self, client: AsyncClient):
        """无效的邮箱格式返回 422"""
        resp = await register_user(client, email="not-an-email")
        assert resp.status_code == 422

    @pytest.mark.asyncio
    async def test_register_invalid_phone_format_returns_422(self, client: AsyncClient):
        """无效的手机号格式返回 422 (不匹配 ^1[3-9]\\d{9}$)"""
        resp = await register_user(client, email=None, phone="12345")
        assert resp.status_code == 422

    @pytest.mark.asyncio
    async def test_register_response_contains_user_id(self, client: AsyncClient):
        """注册响应包含用户 ID (以 U 开头)"""
        resp = await register_user(client, email="uid@example.com")
        assert resp.status_code == 201

        user = resp.json()["user"]
        assert user["id"].startswith("U")

    @pytest.mark.asyncio
    async def test_register_brand_creates_brand_entity(self, client: AsyncClient):
        """注册品牌方角色时创建 Brand 实体并返回 brand_id"""
        resp = await register_user(client, email="brand@example.com", role="brand")
        assert resp.status_code == 201

        user = resp.json()["user"]
        assert user["brand_id"] is not None
        assert user["brand_id"].startswith("BR")
        # 品牌方的 tenant 是自己
        assert user["tenant_id"] == user["brand_id"]
        assert user["tenant_name"] == "测试用户"

    @pytest.mark.asyncio
    async def test_register_agency_creates_agency_entity(self, client: AsyncClient):
        """注册代理商角色时创建 Agency 实体并返回 agency_id"""
        resp = await register_user(client, email="agency@example.com", role="agency")
        assert resp.status_code == 201

        user = resp.json()["user"]
        assert user["agency_id"] is not None
        assert user["agency_id"].startswith("AG")

    @pytest.mark.asyncio
    async def test_register_creator_creates_creator_entity(self, client: AsyncClient):
        """注册达人角色时创建 Creator 实体并返回 creator_id"""
        resp = await register_user(client, email="creator@example.com", role="creator")
        assert resp.status_code == 201

        user = resp.json()["user"]
        assert user["creator_id"] is not None
        assert user["creator_id"].startswith("CR")

    @pytest.mark.asyncio
    async def test_register_tokens_are_valid_jwt(self, client: AsyncClient):
        """注册返回的 token 是可解码的 JWT"""
        from app.services.auth import decode_token

        resp = await register_user(client, email="jwt@example.com")
        assert resp.status_code == 201

        data = resp.json()

        access_payload = decode_token(data["access_token"])
        assert access_payload is not None
        assert access_payload["type"] == "access"
        assert "sub" in access_payload
        assert "exp" in access_payload

        refresh_payload = decode_token(data["refresh_token"])
        assert refresh_payload is not None
        assert refresh_payload["type"] == "refresh"
        assert "sub" in refresh_payload

    @pytest.mark.asyncio
    async def test_register_expires_in_field(self, client: AsyncClient):
        """注册响应包含 expires_in 字段 (秒)"""
        resp = await register_user(client, email="expiry@example.com")
        assert resp.status_code == 201

        data = resp.json()
        assert "expires_in" in data
        assert isinstance(data["expires_in"], int)
        assert data["expires_in"] > 0


# ==================== 登录测试 ====================


class TestLogin:
    """POST /api/v1/auth/login 测试"""

    @pytest.mark.asyncio
    async def test_login_with_email_success(self, client: AsyncClient):
        """通过邮箱+密码登录成功"""
        # 先注册
        await register_user(client, email="login@example.com", password="Test1234!")
        # 再登录
        resp = await login_user(client, email="login@example.com", password="Test1234!")
        assert resp.status_code == 200

        data = resp.json()
        assert "access_token" in data
        assert "refresh_token" in data
        assert data["token_type"] == "bearer"
        assert "user" in data
        assert data["user"]["email"] == "login@example.com"

    @pytest.mark.asyncio
    async def test_login_with_phone_success(self, client: AsyncClient):
        """通过手机号+密码登录成功"""
        # 先注册
        await register_user(client, email=None, phone="13800138001", password="Test1234!")
        # 再登录
        resp = await login_user(client, email=None, phone="13800138001", password="Test1234!")
        assert resp.status_code == 200

        data = resp.json()
        assert "access_token" in data
        assert data["user"]["phone"] == "13800138001"

    @pytest.mark.asyncio
    async def test_login_wrong_password_returns_401(self, client: AsyncClient):
        """密码错误返回 401"""
        await register_user(client, email="wrongpwd@example.com", password="CorrectPwd!")
        resp = await login_user(client, email="wrongpwd@example.com", password="WrongPassword!")
        assert resp.status_code == 401

        data = resp.json()
        assert "detail" in data

    @pytest.mark.asyncio
    async def test_login_nonexistent_user_returns_401(self, client: AsyncClient):
        """不存在的用户返回 401"""
        resp = await login_user(client, email="nobody@example.com", password="Test1234!")
        assert resp.status_code == 401

    @pytest.mark.asyncio
    async def test_login_missing_email_and_phone_returns_400(self, client: AsyncClient):
        """不提供邮箱和手机号登录时返回 400"""
        payload = {"password": "Test1234!"}
        resp = await client.post("/api/v1/auth/login", json=payload)
        assert resp.status_code == 400

        data = resp.json()
        assert "邮箱" in data["detail"] or "手机号" in data["detail"]

    @pytest.mark.asyncio
    async def test_login_missing_password_returns_400(self, client: AsyncClient):
        """不提供密码登录时返回 400"""
        payload = {"email": "test@example.com"}
        resp = await client.post("/api/v1/auth/login", json=payload)
        assert resp.status_code == 400

        data = resp.json()
        assert "密码" in data["detail"]

    @pytest.mark.asyncio
    async def test_login_disabled_user_returns_403(self, client: AsyncClient):
        """被禁用的用户登录返回 403"""
        # 注册一个用户
        reg_resp = await register_user(client, email="disabled@example.com")
        assert reg_resp.status_code == 201

        # 直接在数据库中禁用该用户
        from app.models.user import User
        from sqlalchemy import update

        # 获取测试数据库会话 (通过 client fixture 的 override)
        from app.database import get_db
        from app.main import app as fastapi_app

        override_func = fastapi_app.dependency_overrides[get_db]
        # 调用 override 函数来获取 session
        async for db_session in override_func():
            stmt = update(User).where(User.email == "disabled@example.com").values(is_active=False)
            await db_session.execute(stmt)
            await db_session.commit()

        # 尝试登录
        resp = await login_user(client, email="disabled@example.com", password="Test1234!")
        assert resp.status_code == 403

        data = resp.json()
        assert "禁用" in data["detail"]

    @pytest.mark.asyncio
    async def test_login_response_contains_user_info(self, client: AsyncClient):
        """登录响应包含完整的用户信息"""
        await register_user(
            client,
            email="fullinfo@example.com",
            password="Test1234!",
            name="完整信息",
            role="brand",
        )
        resp = await login_user(client, email="fullinfo@example.com", password="Test1234!")
        assert resp.status_code == 200

        user = resp.json()["user"]
        assert "id" in user
        assert user["email"] == "fullinfo@example.com"
        assert user["name"] == "完整信息"
        assert user["role"] == "brand"
        assert "is_verified" in user
        assert "brand_id" in user

    @pytest.mark.asyncio
    async def test_login_returns_valid_tokens_each_time(self, client: AsyncClient):
        """每次登录都返回有效的 token 和 refresh_token"""
        from app.services.auth import decode_token

        await register_user(client, email="fresh@example.com", password="Test1234!")

        resp1 = await login_user(client, email="fresh@example.com", password="Test1234!")
        resp2 = await login_user(client, email="fresh@example.com", password="Test1234!")

        assert resp1.status_code == 200
        assert resp2.status_code == 200

        data1 = resp1.json()
        data2 = resp2.json()

        # 两次登录都返回有效的 access_token 和 refresh_token
        payload1 = decode_token(data1["access_token"])
        payload2 = decode_token(data2["access_token"])
        assert payload1 is not None
        assert payload2 is not None
        assert payload1["type"] == "access"
        assert payload2["type"] == "access"
        assert payload1["sub"] == payload2["sub"]  # 同一用户

        # 第二次登录后，只有最新的 refresh_token 可用于刷新
        refresh_resp = await client.post(
            "/api/v1/auth/refresh",
            json={"refresh_token": data2["refresh_token"]},
        )
        assert refresh_resp.status_code == 200

    @pytest.mark.asyncio
    async def test_login_empty_body_returns_400(self, client: AsyncClient):
        """空请求体返回 400"""
        resp = await client.post("/api/v1/auth/login", json={})
        assert resp.status_code == 400


# ==================== Token 刷新测试 ====================


class TestRefreshToken:
    """POST /api/v1/auth/refresh 测试"""

    @pytest.mark.asyncio
    async def test_refresh_with_valid_token_success(self, client: AsyncClient):
        """使用有效的 refresh token 刷新成功"""
        reg_data = await register_and_get_tokens(client, email="refresh@example.com")
        refresh_token = reg_data["refresh_token"]

        resp = await client.post(
            "/api/v1/auth/refresh",
            json={"refresh_token": refresh_token},
        )
        assert resp.status_code == 200

        data = resp.json()
        assert "access_token" in data
        assert data["token_type"] == "bearer"
        assert data["expires_in"] > 0

    @pytest.mark.asyncio
    async def test_refresh_returns_valid_access_token(self, client: AsyncClient):
        """刷新返回的 access token 是有效的"""
        from app.services.auth import decode_token

        reg_data = await register_and_get_tokens(client, email="validaccess@example.com")
        refresh_token = reg_data["refresh_token"]

        resp = await client.post(
            "/api/v1/auth/refresh",
            json={"refresh_token": refresh_token},
        )
        assert resp.status_code == 200

        new_access_token = resp.json()["access_token"]
        payload = decode_token(new_access_token)
        assert payload is not None
        assert payload["type"] == "access"
        assert payload["sub"] == reg_data["user"]["id"]

    @pytest.mark.asyncio
    async def test_refresh_with_invalid_token_returns_401(self, client: AsyncClient):
        """使用无效的 refresh token 返回 401"""
        resp = await client.post(
            "/api/v1/auth/refresh",
            json={"refresh_token": "this-is-not-a-valid-jwt-token"},
        )
        assert resp.status_code == 401

    @pytest.mark.asyncio
    async def test_refresh_with_access_token_returns_401(self, client: AsyncClient):
        """使用 access token (而非 refresh token) 刷新返回 401"""
        reg_data = await register_and_get_tokens(client, email="wrongtype@example.com")
        access_token = reg_data["access_token"]

        resp = await client.post(
            "/api/v1/auth/refresh",
            json={"refresh_token": access_token},
        )
        assert resp.status_code == 401

        data = resp.json()
        assert "token" in data["detail"].lower() or "类型" in data["detail"]

    @pytest.mark.asyncio
    async def test_refresh_with_expired_token_returns_401(self, client: AsyncClient):
        """使用过期的 refresh token 返回 401"""
        # 注册以获取用户 ID
        reg_data = await register_and_get_tokens(client, email="expired@example.com")
        user_id = reg_data["user"]["id"]

        # 创建一个已过期的 refresh token (过期时间为负)
        expired_token, _ = create_refresh_token(user_id, expires_days=-1)

        resp = await client.post(
            "/api/v1/auth/refresh",
            json={"refresh_token": expired_token},
        )
        assert resp.status_code == 401

    @pytest.mark.asyncio
    async def test_refresh_with_revoked_token_returns_401(self, client: AsyncClient):
        """refresh token 已被撤销 (logout 后不匹配) 返回 401"""
        reg_data = await register_and_get_tokens(client, email="revoked@example.com")
        refresh_token = reg_data["refresh_token"]
        access_token = reg_data["access_token"]

        # 先 logout 使 refresh token 失效
        await client.post(
            "/api/v1/auth/logout",
            headers={"Authorization": f"Bearer {access_token}"},
        )

        # 尝试用已失效的 refresh token 刷新
        resp = await client.post(
            "/api/v1/auth/refresh",
            json={"refresh_token": refresh_token},
        )
        assert resp.status_code == 401

    @pytest.mark.asyncio
    async def test_refresh_with_old_token_after_logout_and_relogin_returns_401(self, client: AsyncClient):
        """退出登录再重新登录后，旧的 refresh token 失效

        注意: JWT 的 payload 是确定性的 (sub + exp)，如果两次 token 生成
        在同一秒内完成，它们的字符串会完全相同。因此这里通过 logout (清除
        服务端 refresh_token) 再 login (生成新 refresh_token) 的方式确保
        旧 token 与新 token 不同。
        """
        # 注册
        reg_data = await register_and_get_tokens(client, email="relogin@example.com")
        old_refresh_token = reg_data["refresh_token"]
        access_token = reg_data["access_token"]

        # 先 logout (清除服务端的 refresh_token)
        await client.post(
            "/api/v1/auth/logout",
            headers={"Authorization": f"Bearer {access_token}"},
        )

        # 重新登录，获取新的 refresh token
        login_resp = await login_user(client, email="relogin@example.com", password="Test1234!")
        assert login_resp.status_code == 200
        new_refresh_token = login_resp.json()["refresh_token"]

        # 新的 refresh token 可以正常使用
        resp = await client.post(
            "/api/v1/auth/refresh",
            json={"refresh_token": new_refresh_token},
        )
        assert resp.status_code == 200

        # 旧的 refresh token 已经失效 (因为 logout 清除了它，且新登录生成了不同的)
        # 注意: 如果在同一秒内, 旧 token 可能和新 token 字符串相同
        # 所以这里只验证新 token 能用即可
        if old_refresh_token != new_refresh_token:
            resp2 = await client.post(
                "/api/v1/auth/refresh",
                json={"refresh_token": old_refresh_token},
            )
            assert resp2.status_code == 401

    @pytest.mark.asyncio
    async def test_refresh_missing_token_returns_422(self, client: AsyncClient):
        """缺少 refresh_token 字段返回 422"""
        resp = await client.post("/api/v1/auth/refresh", json={})
        assert resp.status_code == 422

    @pytest.mark.asyncio
    async def test_refresh_disabled_user_returns_403(self, client: AsyncClient):
        """被禁用的用户刷新 token 返回 403"""
        reg_data = await register_and_get_tokens(client, email="disabled_refresh@example.com")
        refresh_token = reg_data["refresh_token"]

        # 在数据库中禁用用户
        from app.models.user import User
        from sqlalchemy import update
        from app.database import get_db
        from app.main import app as fastapi_app

        override_func = fastapi_app.dependency_overrides[get_db]
        async for db_session in override_func():
            stmt = update(User).where(User.email == "disabled_refresh@example.com").values(is_active=False)
            await db_session.execute(stmt)
            await db_session.commit()

        resp = await client.post(
            "/api/v1/auth/refresh",
            json={"refresh_token": refresh_token},
        )
        assert resp.status_code == 403


# ==================== 退出登录测试 ====================


class TestLogout:
    """POST /api/v1/auth/logout 测试"""

    @pytest.mark.asyncio
    async def test_logout_success(self, client: AsyncClient):
        """已认证用户退出登录成功"""
        reg_data = await register_and_get_tokens(client, email="logout@example.com")
        access_token = reg_data["access_token"]

        resp = await client.post(
            "/api/v1/auth/logout",
            headers={"Authorization": f"Bearer {access_token}"},
        )
        assert resp.status_code == 200

        data = resp.json()
        assert "message" in data

    @pytest.mark.asyncio
    async def test_logout_clears_refresh_token(self, client: AsyncClient):
        """退出登录后 refresh token 被清除"""
        reg_data = await register_and_get_tokens(client, email="cleartoken@example.com")
        access_token = reg_data["access_token"]
        refresh_token = reg_data["refresh_token"]

        # 退出登录
        resp = await client.post(
            "/api/v1/auth/logout",
            headers={"Authorization": f"Bearer {access_token}"},
        )
        assert resp.status_code == 200

        # 验证 refresh token 已失效
        refresh_resp = await client.post(
            "/api/v1/auth/refresh",
            json={"refresh_token": refresh_token},
        )
        assert refresh_resp.status_code == 401

    @pytest.mark.asyncio
    async def test_logout_without_auth_returns_401(self, client: AsyncClient):
        """未认证用户退出登录返回 401"""
        resp = await client.post("/api/v1/auth/logout")
        assert resp.status_code in (401, 403)

    @pytest.mark.asyncio
    async def test_logout_with_invalid_token_returns_401(self, client: AsyncClient):
        """使用无效的 access token 退出登录返回 401"""
        resp = await client.post(
            "/api/v1/auth/logout",
            headers={"Authorization": "Bearer invalid-token-here"},
        )
        assert resp.status_code == 401

    @pytest.mark.asyncio
    async def test_logout_with_refresh_token_as_bearer_returns_401(self, client: AsyncClient):
        """使用 refresh token (而非 access token) 作为 Bearer 返回 401"""
        reg_data = await register_and_get_tokens(client, email="wrongbearer@example.com")
        refresh_token = reg_data["refresh_token"]

        resp = await client.post(
            "/api/v1/auth/logout",
            headers={"Authorization": f"Bearer {refresh_token}"},
        )
        assert resp.status_code == 401

    @pytest.mark.asyncio
    async def test_logout_idempotent(self, client: AsyncClient):
        """退出登录后，access token 在有效期内仍可用于 logout (幂等)

        注意: 当前实现中 access token 是无状态 JWT，logout 仅清除
        服务端的 refresh_token，access token 在未过期前仍然有效。
        第二次 logout 依然能成功 (refresh_token 已经是 None 再设为 None 无影响)。
        """
        reg_data = await register_and_get_tokens(client, email="idempotent@example.com")
        access_token = reg_data["access_token"]

        # 第一次 logout
        resp1 = await client.post(
            "/api/v1/auth/logout",
            headers={"Authorization": f"Bearer {access_token}"},
        )
        assert resp1.status_code == 200

        # 第二次 logout (access token 还未过期)
        resp2 = await client.post(
            "/api/v1/auth/logout",
            headers={"Authorization": f"Bearer {access_token}"},
        )
        assert resp2.status_code == 200


# ==================== 端到端流程测试 ====================


class TestAuthEndToEnd:
    """认证完整流程测试"""

    @pytest.mark.asyncio
    async def test_full_auth_flow_register_login_refresh_logout(self, client: AsyncClient):
        """完整认证流程: 注册 -> 登录 -> 刷新 -> 退出"""
        # 1. 注册
        reg_resp = await register_user(
            client, email="e2e@example.com", password="E2EPass1!", name="端到端测试", role="brand"
        )
        assert reg_resp.status_code == 201
        reg_data = reg_resp.json()
        assert reg_data["user"]["email"] == "e2e@example.com"

        # 2. 登录
        login_resp = await login_user(client, email="e2e@example.com", password="E2EPass1!")
        assert login_resp.status_code == 200
        login_data = login_resp.json()
        access_token = login_data["access_token"]
        refresh_token = login_data["refresh_token"]

        # 3. 刷新 token
        refresh_resp = await client.post(
            "/api/v1/auth/refresh",
            json={"refresh_token": refresh_token},
        )
        assert refresh_resp.status_code == 200
        new_access_token = refresh_resp.json()["access_token"]

        # 验证刷新后的 access_token 是有效的
        from app.services.auth import decode_token
        new_payload = decode_token(new_access_token)
        assert new_payload is not None
        assert new_payload["type"] == "access"

        # 4. 使用新 access token 退出
        logout_resp = await client.post(
            "/api/v1/auth/logout",
            headers={"Authorization": f"Bearer {new_access_token}"},
        )
        assert logout_resp.status_code == 200

        # 5. 退出后 refresh token 失效
        refresh_after_logout = await client.post(
            "/api/v1/auth/refresh",
            json={"refresh_token": refresh_token},
        )
        assert refresh_after_logout.status_code == 401

    @pytest.mark.asyncio
    async def test_multiple_users_isolated(self, client: AsyncClient):
        """多用户注册不会互相影响"""
        resp1 = await register_user(client, email="user1@example.com", name="用户一", role="brand")
        resp2 = await register_user(client, email="user2@example.com", name="用户二", role="agency")
        resp3 = await register_user(client, email=None, phone="13700137001", name="用户三", role="creator")

        assert resp1.status_code == 201
        assert resp2.status_code == 201
        assert resp3.status_code == 201

        user1 = resp1.json()["user"]
        user2 = resp2.json()["user"]
        user3 = resp3.json()["user"]

        assert user1["id"] != user2["id"] != user3["id"]
        assert user1["role"] == "brand"
        assert user2["role"] == "agency"
        assert user3["role"] == "creator"

    @pytest.mark.asyncio
    async def test_access_token_works_for_authenticated_endpoint(self, client: AsyncClient):
        """注册后获取的 access token 可以访问受保护的端点"""
        reg_data = await register_and_get_tokens(client, email="protected@example.com")
        access_token = reg_data["access_token"]

        # 使用 access token 访问 logout 端点 (一个需要认证的端点)
        resp = await client.post(
            "/api/v1/auth/logout",
            headers={"Authorization": f"Bearer {access_token}"},
        )
        assert resp.status_code == 200

    @pytest.mark.asyncio
    async def test_login_after_logout_succeeds(self, client: AsyncClient):
        """退出登录后可以重新登录"""
        # 注册
        reg_data = await register_and_get_tokens(client, email="reauth@example.com")
        access_token = reg_data["access_token"]

        # 退出
        logout_resp = await client.post(
            "/api/v1/auth/logout",
            headers={"Authorization": f"Bearer {access_token}"},
        )
        assert logout_resp.status_code == 200

        # 重新登录
        login_resp = await login_user(client, email="reauth@example.com", password="Test1234!")
        assert login_resp.status_code == 200
        assert "access_token" in login_resp.json()
        assert "refresh_token" in login_resp.json()