import {
  Box,
  Typography,
  Button,
  TextField,
  FormControl,
  Select,
  MenuItem,
  Avatar,
  Autocomplete,
  type SelectChangeEvent,
} from '@mui/material';
import { useState, type ChangeEvent } from 'react';
import { CardContainer } from '@/components/CardContainer';
import { CountryFlag, countryCodeMap } from '@/components/CountryFlag';
import { useTranslation } from 'react-i18next';
import { Camera } from 'iconsax-react';

export function PersonalInformation() {
  const { t } = useTranslation('profileSetting');
  const [isEditing, setIsEditing] = useState(false);
  const [gender, setGender] = useState('');

  const initialData = {
    firstName: 'محمد حسین',
    lastName: 'برزه‌گر',
    country: 'قطر',
    gender: 'مرد',
    nationalCode: '',
  };
  const [data, setData] = useState(initialData);
  const [uploadedImageUrl, setUploadedImageUrl] = useState<string | null>(null);

  const handleChange = (e: ChangeEvent<HTMLInputElement>) => {
    const { name, value } = e.target;
    setData((prev) => ({
      ...prev,
      [name]: value,
    }));
  };

  const toggleEdit = () => {
    setIsEditing((prev) => !prev);
    if (isEditing) {
      setData((prev) => ({
        ...prev,
        gender: gender === 'male' ? 'مرد' : gender === 'female' ? 'زن' : '',
      }));
    } else {
      setGender(
        data.gender === 'مرد' ? 'male' : data.gender === 'زن' ? 'female' : '',
      );
    }
  };

  const handleChangeGender = (e: SelectChangeEvent) => {
    setGender(e.target.value);
  };

  const displayValue = (value: string | null | undefined) => {
    return value && value.trim() !== '' ? value : 'تعیین نشده';
  };

  const handleImageChange = (e: React.ChangeEvent<HTMLInputElement>) => {
    const file = e.target.files?.[0];
    if (file) {
      const reader = new FileReader();
      reader.onload = () => {
        setUploadedImageUrl(reader.result as string);
      };
      reader.readAsDataURL(file);
    }
  };

  const initials = `${data.firstName?.trim()[0] || ''}‌${data.lastName?.trim()[0] || ''}`;

  return (
    <Box
      sx={{ display: 'flex', justifyContent: 'center', alignItems: 'center' }}
    >
      <CardContainer
        title={t('settingForm.titlePersonalInfo')}
        subtitle={t('settingForm.descriptionPersonalInfo')}
        highlighted={isEditing}
        action={
          <Box sx={{ display: 'flex', gap: 1 }}>
            {isEditing && (
              <Button
                variant="text"
                onClick={() => setIsEditing(false)}
                size="large"
                sx={{ color: '#2979FF', width: '43px' }}
              >
                {t('settingForm.rejectButton')}
              </Button>
            )}
            <Button
              onClick={toggleEdit}
              size="large"
              sx={{
                border: '1px solid',
                borderColor: '#2979FF',
                borderRadius: '4px',
                backgroundColor: isEditing ? '#2979FF' : 'white',
                color: isEditing ? 'white' : '#2979FF',
                px: '22px',
                py: '8px',
                width: isEditing ? '85px' : '93px',
              }}
            >
              {isEditing
                ? t('settingForm.saveButton')
                : t('settingForm.editButton')}
            </Button>
          </Box>
        }
      >
        <Box
          sx={{
            px: 4,
            py: 2,
            display: 'flex',
            flexDirection: 'column',
            gap: 2,
          }}
        >
          {isEditing && (
            <Box sx={{ display: 'flex', alignItems: 'center', gap: 2 }}>
              <Avatar
                sx={{
                  bgcolor: '#00C3B7',
                  width: 88,
                  height: 88,
                  fontSize: '20px',
                }}
                src={uploadedImageUrl || undefined}
              >
                {initials}
              </Avatar>
              <Box>
                <Typography variant="body1">
                  {t('settingForm.profilePicture')}
                </Typography>
                <Typography variant="body2" color="text.secondary">
                  {t('settingForm.allowedFormat')}
                </Typography>
                <Box mt={1}>
                  <Button
                    variant="contained"
                    component="label"
                    sx={{
                      borderRadius: 2,
                      textTransform: 'none',
                      height: '30px',
                      fontSize: '13px',
                    }}
                    startIcon={<Camera size={18} color="white" />}
                  >
                    {t('settingForm.uploadPicture')}
                    <input
                      hidden
                      accept="image/png, image/jpeg, image/gif"
                      type="file"
                      onChange={handleImageChange}
                    />
                  </Button>
                </Box>
              </Box>
            </Box>
          )}

          <Box sx={{ display: 'flex', flexWrap: 'wrap', gap: 2 }}>
            <Box sx={{ width: 'calc(50% - 8px)' }}>
              {isEditing ? (
                <TextField
                  fullWidth
                  name="firstName"
                  value={data.firstName}
                  onChange={handleChange}
                  label={t('settingForm.name')}
                />
              ) : (
                <Box sx={{ px: 4 }}>
                  <Typography variant="caption" color="text.secondary">
                    {`${t('settingForm.name')} و ${t('settingForm.familyName')}`}
                  </Typography>
                  <Box sx={{ display: 'flex', alignItems: 'center', gap: 1 }}>
                    <Avatar>{initials}</Avatar>
                    <Typography variant="body1" color="text.primary">
                      {displayValue(data.firstName + ' ' + data.lastName)}
                    </Typography>
                  </Box>
                </Box>
              )}
            </Box>

            <Box sx={{ width: 'calc(50% - 8px)' }}>
              {isEditing ? (
                <TextField
                  fullWidth
                  name="lastName"
                  value={data.lastName}
                  onChange={handleChange}
                  label={t('settingForm.familyName')}
                />
              ) : (
                <Box sx={{ px: 4 }}>
                  <Typography variant="caption" color="text.secondary">
                    {t('settingForm.country')}
                  </Typography>
                  <CountryFlag country={data.country} />
                </Box>
              )}
            </Box>

            <Box sx={{ width: 'calc(50% - 8px)' }}>
              {isEditing ? (
                <FormControl fullWidth>
                  <Select
                    value={gender}
                    onChange={handleChangeGender}
                    displayEmpty
                    renderValue={(selected) => {
                      if (!selected) {
                        return (
                          <span style={{ color: '#aaa' }}>
                            {t('settingForm.genderPlaceholder')}
                          </span>
                        );
                      }
                      return selected === 'male'
                        ? t('settingForm.man')
                        : t('settingForm.woman');
                    }}
                  >
                    <MenuItem value="male">{t('settingForm.man')}</MenuItem>
                    <MenuItem value="female">{t('settingForm.woman')}</MenuItem>
                  </Select>
                </FormControl>
              ) : (
                <Box sx={{ px: 4 }}>
                  <Typography variant="caption" color="text.secondary">
                    {t('settingForm.gender')}
                  </Typography>
                  <Typography variant="body1" color="text.primary">
                    {displayValue(data.gender)}
                  </Typography>
                </Box>
              )}
            </Box>

            <Box sx={{ width: 'calc(50% - 8px)' }}>
              {isEditing ? (
                <TextField
                  fullWidth
                  name="nationalCode"
                  value={data.nationalCode}
                  onChange={handleChange}
                  label={t('settingForm.nationalCode')}
                />
              ) : (
                <Box sx={{ px: 4 }}>
                  <Typography variant="caption" color="text.secondary">
                    {t('settingForm.nationalCode')}
                  </Typography>
                  <Typography variant="body1" color="text.primary">
                    {displayValue(data.nationalCode)}
                  </Typography>
                </Box>
              )}
            </Box>
            {isEditing && (
              <Autocomplete
                sx={{ width: 'calc(50% - 8px)' }}
                options={Object.keys(countryCodeMap)}
                value={data.country}
                onChange={(_, newValue) =>
                  setData((prev) => ({
                    ...prev,
                    country: newValue || '',
                  }))
                }
                renderOption={(props, option) => (
                  <Box component="li" {...props}>
                    <CountryFlag country={option} />
                  </Box>
                )}
                renderInput={(params) => (
                  <TextField {...params} label={t('settingForm.country')} />
                )}
              />
            )}
          </Box>
        </Box>
      </CardContainer>
    </Box>
  );
}