import React, { useState } from 'react';
import { Box, Button, TextField, Typography, useTheme, Snackbar, Alert } from '@mui/material';
import authService from '../../../services/authService';

const EmailInputSection = ({ emailOrPhone, setEmailOrPhone, onStepComplete }) => {
  const theme = useTheme();
  const [loading, setLoading] = useState(false);

  // حالات Snackbar
  const [snackbarOpen, setSnackbarOpen] = useState(false);
  const [snackbarMessage, setSnackbarMessage] = useState('');
  const [snackbarSeverity, setSnackbarSeverity] = useState('success');
  const [inputError, setInputError] = useState('');

  const handleCloseSnackbar = (event, reason) => {
    if (reason === 'clickaway') return;
    setSnackbarOpen(false);
  };

  const validateEmail = (email) => {
    const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
    return emailRegex.test(email);
  };

  const handleSend = async () => {
    setInputError(''); // مسح الأخطاء السابقة

    if (!emailOrPhone) {
      setInputError("Please enter your email.");
      return;
    }

    if (!validateEmail(emailOrPhone)) {
      setInputError("Please enter a valid email address.");
      return;
    }

    setLoading(true);
    const response = await authService.resetPassword(emailOrPhone);
    setLoading(false);

    if (response.success !== false) {
      setSnackbarMessage("A reset code has been sent to your email.");
      setSnackbarSeverity('success');
      setSnackbarOpen(true);

      setTimeout(() => {
        if (onStepComplete) onStepComplete();
      }, 5000);

    } else {
      setInputError('');
      let errorMessage = "";
      if (response.errors) {
        const firstError = Object.values(response.errors)[0];
        errorMessage = Array.isArray(firstError) ? firstError[0] : firstError;
      } else if (response.message) {
        errorMessage = response.message;
      } else {
        errorMessage = "Failed to send reset code.";
      }

      if (
        errorMessage.toLowerCase().includes("not found") ||
        errorMessage.toLowerCase().includes("not registered") ||
        errorMessage.toLowerCase().includes("doesn't exist") ||
        errorMessage.toLowerCase().includes("email")
      ) {
        setInputError("This email is not registered.");
      } else if (errorMessage.toLowerCase().includes("invalid credentials")) {
        setInputError("Email or password is incorrect.");
      } else {
        setSnackbarMessage(errorMessage);
        setSnackbarSeverity('error');
        setSnackbarOpen(true);
      }
    }
  };

  return (
    <Box sx={{ width: '100%' }}>
      <Box>
        <Box
          component="img"
          src="/image.png"
          alt="logo"
          sx={{
            width: { xs: '5vh', sm: '7vh' },
            maxWidth: { xs: '40px', sm: '80px' },
            height: 'auto',
            objectFit: 'contain',
            overflow: 'auto',
            scrollbarWidth: 'none',
            '&::-webkit-scrollbar': { display: 'none' },
          }}
        />
      </Box>

      <Typography
        variant="h4"
        fontWeight={700}
        sx={{ fontSize: { xs: '1.8rem', sm: '2rem', md: '2.2rem' } }}
      >
        Forget Password
      </Typography>

      <Typography variant="body1" color="text.secondary" mb={2}>
        Enter your email to reset it and regain access to your account.
      </Typography>

      <Box sx={{ width: '100%', display: 'flex', flexDirection: 'column', gap: 1, mb: 2 }}>
        <Typography variant="body2" color="black" sx={{ fontWeight: '500', fontSize: '16px' }}>
          Email
        </Typography>
        <TextField
          placeholder="Enter your email"
          type="email"
          variant="outlined"
          fullWidth
          value={emailOrPhone}
          onChange={(e) => setEmailOrPhone(e.target.value)}
          error={!!inputError}
          helperText={inputError}
          sx={{
            '& input': { fontWeight: 500, fontSize: '15px' },
            '& input::placeholder': { color: '#969BA7' },
            '& .MuiOutlinedInput-root': {
              borderRadius: '10px',
              transition: '0.3s',
              '&.Mui-focused fieldset': {
                borderColor: '#FF914D',
                boxShadow: '0 0 0 2px rgba(255, 145, 77, 0.2)',
              },
            },
            '& .MuiOutlinedInput-root.Mui-focused': {
              borderColor: '#3f51b5',
              boxShadow: '0 0 0 2px rgba(63,81,181,0.1)',
            },
          }}
        />
      </Box>

      <Button
        variant="contained"
        fullWidth
        onClick={handleSend}
        disabled={loading}
        sx={{
          color: 'white',
          backgroundColor: theme.palette.primary.main,
          borderRadius: '30px',
          textTransform: 'none',
          fontWeight: 600,
          fontSize: '16px',
          height: '48px',
          '&:hover': {
            backgroundColor: theme.palette.primary.hover,
            transition: 'all 0.4s ease',
          },
        }}
      >
        {loading ? "Sending..." : "Send"}
      </Button>
      {/* 
      <Typography
        textAlign="center"
        fontWeight={500}
        sx={{ fontSize: '16px', width: '100%', mx: 'auto', color: '#969BA7', mt: 2 }}
      >
        By log in, I agree to the&nbsp;
        <a href="#" style={{ color: '#007bff', textDecoration: 'none' }}>
          Terms of Service
        </a>{' '}
        and&nbsp;
        <a href="#" style={{ color: '#007bff', textDecoration: 'none' }}>
          Privacy Policy
        </a>
      </Typography> */}

      {/* Terms */}
      <Typography
        // variant="caption"
        textAlign="center"
        fontWeight={500}

        sx={{ fontSize: '16px', width: '100%', mx: 'auto', color: '#969BA7', mt: 2 }}

      >
        By logging in, I agree to the{' '}
        <Box
          component="span"
          sx={{ color: '#2261FF', cursor: 'pointer', textDecoration: 'none' }}
          onClick={() => window.open('/terms', 'TermsOfService')}
        >
          Terms of Service
        </Box>{' '}
        and{' '}
        <Box
          component="span"
          sx={{ color: '#2261FF', cursor: 'pointer', textDecoration: 'none' }}
          onClick={() => window.open('/privacy', 'PrivacyPolicy')}
        >
          Privacy Policy
        </Box>.
      </Typography>

      <Snackbar
        open={snackbarOpen}
        autoHideDuration={4000}
        onClose={handleCloseSnackbar}
        anchorOrigin={{ vertical: 'bottom', horizontal: 'center' }}
      >
        <Alert
          onClose={handleCloseSnackbar}
          severity={snackbarSeverity}
          sx={{ width: { xs: '40%', sm: '60%', md: '100%' }, color: 'white', fontSize: '16px', fontWeight: '500', backgroundColor: '#e57f3f', borderRadius: 6, mb: 6 }}
          variant="filled"
        >
          {snackbarMessage}
        </Alert>
      </Snackbar>
    </Box>
  );
};

export default EmailInputSection;