from fastapi import APIRouter, HTTPException, Query
from fastapi.responses import JSONResponse
from pydantic import BaseModel

from services.auth_service import (
    send_verification_email,
    verify_email_login,
    get_github_auth_url,
    handle_github_callback,
    get_current_user,
    guest_login,
)

router = APIRouter(prefix="/api/auth", tags=["auth"])


class EmailSendCodeRequest(BaseModel):
    email: str


class EmailVerifyRequest(BaseModel):
    email: str
    code: str


class GuestLoginRequest(BaseModel):
    nickname: str = ""


@router.post("/email/send-code")
async def api_send_code(req: EmailSendCodeRequest):
    try:
        result = await send_verification_email(req.email)
        return result
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"发送验证码失败: {str(e)}")


@router.post("/email/verify")
async def api_verify_email(req: EmailVerifyRequest):
    try:
        result = await verify_email_login(req.email, req.code)
        return result
    except ValueError as e:
        raise HTTPException(status_code=400, detail=str(e))


@router.post("/guest")
async def api_guest_login(req: GuestLoginRequest):
    try:
        result = await guest_login(req.nickname)
        return result
    except Exception as e:
        raise HTTPException(status_code=500, detail=str(e))


@router.get("/github/url")
async def api_github_url():
    url = await get_github_auth_url()
    return {"url": url}


@router.get("/github/callback")
async def api_github_callback(code: str = Query(...)):
    try:
        result = await handle_github_callback(code)
        return result
    except ValueError as e:
        raise HTTPException(status_code=400, detail=str(e))


@router.get("/me")
async def api_get_me(token: str = Query(None)):
    if not token:
        raise HTTPException(status_code=401, detail="缺少认证 token")
    try:
        user = await get_current_user(token)
        return {
            "user_id": user["user_id"],
            "email": user.get("email"),
            "nickname": user.get("nickname"),
            "avatar_url": user.get("avatar_url"),
        }
    except ValueError as e:
        raise HTTPException(status_code=401, detail=str(e))


@router.post("/logout")
async def api_logout():
    return {"success": True, "message": "已退出登录"}