"use client";

import { CustomButton } from "@/core/components/base/button";
import {
  Card,
  CardContent,
  CardHeader,
  CardTitle,
} from "@/core/components/base/card";
import {
  Dialog,
  DialogFooter,
  DialogHeader,
  DialogTitle,
} from "@/core/components/base/dialog";
import { CustomInput } from "@/core/components/base/input";
import { OTPDialog } from "@modules/auth/components/otp/opt-dialog";
import { toast } from "react-toastify";

import { userInfoService } from "@/core/service/user-info.service";
import { DASHBOARD_ROUTE } from "@/modules/dashboard/routes/route.constant";
import { fetchUserProfile } from "@/modules/dashboard/service/user.service";
import { sendOtpService, verifyOtpService } from "@modules/auth/service/auth.service";
import { useMutation } from "@tanstack/react-query";
import { useState } from "react";
import { useNavigate } from "react-router-dom";

export function LoginPage() {
  const navigate = useNavigate();
  const [isDialogOpen, setIsDialogOpen] = useState(false);
  const [otpDialog, setOtpDialog] = useState(false);
  const [phoneNumber, setPhoneNumber] = useState<string>("");
  const [otp, setOtp] = useState<string>("");
  const [error, setError] = useState("");
  const [submitLoading, setSubmitLoading] = useState<boolean>(false);

  const validatePhoneNumber = (value: string) => {
    const phoneRegex = /^[0-9]{10,11}$/;
    if (!value) {
      setError("شماره تلفن الزامی است");
      return false;
    } else if (!phoneRegex.test(value)) {
      setError("شماره تلفن باید 10 یا 11 رقم باشد");
      return false;
    }
    setError("");
    return true;
  };

  const sendOtpMutation = useMutation({
    mutationFn: sendOtpService,

    onSuccess: (data) => {
      setSubmitLoading(false);
      if (data.resultType !== 0) {
        toast.error(data.message);
        return;
      }

      toast.success("کد یکبار مصرف ارسال شد");
      setIsDialogOpen(false);
      setOtpDialog(true);
      // setPhoneNumber("");
    },

    onError: (error: any) => {
      setSubmitLoading(false);
      toast.error("مشکلی رخ داد");
      console.log(error);
    },
  });

  const verifyOtpMutation = useMutation({
    mutationFn: verifyOtpService,

    onSuccess: async(data) => {
      setSubmitLoading(false);
      if (data.resultType !== 0) {
        toast.error(data.message);
        return;
      }
      toast.success("ورود با موفقیت انجام شد");
      const person = JSON.parse(data.data).Person;
      const token = JSON.parse(data.data).Token;
      localStorage.setItem("token", JSON.stringify(token));
      userInfoService.updateUserInfo(person)
      await fetchUserProfile()
      const userInfo = userInfoService.getUserInfo()
      setOtpDialog(false);
      if (userInfo?.username) {
        navigate(`${DASHBOARD_ROUTE.sub}/${DASHBOARD_ROUTE.campaigns}`, {
          replace: true,
        });
      } else {
        navigate(`${DASHBOARD_ROUTE.sub}/${DASHBOARD_ROUTE.profile}`, {
          replace: true,
        });
      }
    },

    onError: () => {
      setSubmitLoading(false);
      toast.error("خطا در تایید کد");
    },
  });

  const handleSubmit = () => {
    if (!validatePhoneNumber(phoneNumber)) return;
    setSubmitLoading(true);
    sendOtpMutation.mutate(phoneNumber);
  };

  const handleCancel = () => {
    setPhoneNumber("");
    setError("");
    setIsDialogOpen(false);
  };

  const handleOtpSubmit = () => {
    setSubmitLoading(true);
    verifyOtpMutation.mutate({
      mobile: phoneNumber,
      code: otp,
    });
  };

  return (
    <div className="flex min-h-screen items-center justify-center bg-gray-50 p-4">
      {/* Card */}
      <Card className="w-full max-w-md rounded-lg border border-gray-200 bg-white shadow-md sm:p-6">
        <CardHeader>
          <CardTitle className="text-center sm:text-left text-xl font-bold">
            ورود به سامانه
          </CardTitle>
        </CardHeader>
        <CardContent>
          <p className="mb-4 text-center text-sm text-gray-600 sm:text-left">
            برای ورود به سامانه بر روی دکمه ورود کلیک نمایید.{" "}
          </p>
          <div className="flex justify-center sm:justify-start">
            <CustomButton
              variant="primary"
              className="w-full sm:w-auto"
              onClick={() => setIsDialogOpen(true)}
            >
              ورود
            </CustomButton>
          </div>
        </CardContent>
      </Card>

      <Dialog
        isOpen={isDialogOpen}
        onClose={() => {
          handleCancel();
        }}
      >
        <div className="w-full rounded-lg bg-white  ">
          <DialogHeader>
            <DialogTitle className="text-lg font-semibold text-center sm:text-left">
              شماره تلفن خود را وارد کنید
            </DialogTitle>
          </DialogHeader>

          <div className="my-4">
            <CustomInput
              label="شماره تلفن"
              type="tel"
              placeholder="09123456789"
              value={phoneNumber}
              onChange={(e) => {
                setPhoneNumber(e.target.value);
                if (error) validatePhoneNumber(e.target.value);
              }}
              error={error}
              variant={error ? "error" : "primary"}
              className="w-full"
            />
          </div>

          <DialogFooter className="flex flex-col gap-2 sm:flex-row sm:justify-end">
            <CustomButton
              variant="primary"
              className="w-full sm:w-auto"
              disabled={submitLoading}
              onClick={handleSubmit}
            >
              تایید
            </CustomButton>
          </DialogFooter>
        </div>
      </Dialog>

      <OTPDialog
        isOpen={otpDialog}
        otpValue={otp}
        onChange={setOtp}
        onClose={() => {
          setIsDialogOpen(false);
        }}
        onSubmit={handleOtpSubmit}
        submitLoading={submitLoading}
      />
    </div>
  );
}

export default LoginPage;