from rest_framework import status
from rest_framework.permissions import AllowAny, IsAuthenticated
from rest_framework.response import Response
from rest_framework.views import APIView
from rest_framework_simplejwt.tokens import RefreshToken

from apps.account.models import TermsAndConditions

from .selectors import UserSelector
from .serializers import (
    ConfirmWithOTPSerializer,
    LogoutSerializer,
    ProfileUpdateSerializer,
    RequestOTPSerializer,
    VerifyOTPSerializer,
)
from .services import UserService
from .throttles import OTPVerifyThrottle, PhoneRateThrottle


class RequestOTPView(APIView):
    """ارسال کد تایید به شماره موبایل (کاربر جدید هم همینجا خودکار ساخته می‌شود)"""

    permission_classes = [AllowAny]
    throttle_classes = [PhoneRateThrottle]

    def post(self, request):
        serializer = RequestOTPSerializer(data=request.data)
        serializer.is_valid(raise_exception=True)
        result = UserService.send_login_code(
            serializer.validated_data["phone"], referral_code=serializer.validated_data.get("referral_code")
        )
        return Response(result, status=status.HTTP_200_OK)


class TermsView(APIView):
    """متن قوانین و مقررات — قبل از لاگین هم باید قابل‌خواندن باشد."""

    permission_classes = [AllowAny]

    def get(self, request):
        return Response({"content": TermsAndConditions.get_solo().content})


class VerifyOTPView(APIView):
    """تایید کد و دریافت توکن‌های JWT"""

    permission_classes = [AllowAny]
    throttle_classes = [OTPVerifyThrottle]

    def post(self, request):
        serializer = VerifyOTPSerializer(data=request.data)
        serializer.is_valid(raise_exception=True)
        user = serializer.validated_data["user"]
        return Response(UserSelector.get_token_response(user), status=status.HTTP_200_OK)


class LogoutView(APIView):
    permission_classes = [IsAuthenticated]

    def post(self, request):
        serializer = LogoutSerializer(data=request.data)
        serializer.is_valid(raise_exception=True)
        try:
            RefreshToken(serializer.validated_data["refresh"]).blacklist()
        except Exception:
            pass
        return Response({"message": "خروج با موفقیت انجام شد."})


class ProfileView(APIView):
    permission_classes = [IsAuthenticated]

    def get(self, request):
        return Response({"success": True, "data": UserSelector.get_user_profile(request.user)})

    def patch(self, request):
        serializer = ProfileUpdateSerializer(data=request.data, partial=True)
        serializer.is_valid(raise_exception=True)
        user = UserService.update_user_profile(request.user, serializer.validated_data)
        return Response(
            {
                "success": True,
                "message": "پروفایل با موفقیت بروزرسانی شد.",
                "data": UserSelector.get_user_profile(user),
            }
        )


class ProfileDeleteView(APIView):
    """حذف حساب کاربری — نیاز به تایید OTP دارد (اول /auth/request-otp/ بزن)"""

    permission_classes = [IsAuthenticated]

    def delete(self, request):
        serializer = ConfirmWithOTPSerializer(data=request.data)
        serializer.is_valid(raise_exception=True)
        UserService.verify_otp_for_action(request.user, serializer.validated_data["otp"])
        request.user.delete()
        return Response({"message": "حساب کاربری با موفقیت حذف شد."})