import React, { useState } from 'react';
import {
  Dialog,
  DialogTitle,
  DialogContent,
  DialogActions,
  Button,
  Typography,
  Box,
  IconButton,
} from '@mui/material';
import {
  Close as CloseIcon,
  Info as InfoIcon,
  CheckCircle as SuccessIcon,
  Warning as WarningIcon,
  Error as ErrorIcon,
  Help as ConfirmIcon,
} from '@mui/icons-material';
import { useTranslation } from 'react-i18next';
import { type IDialogInstance } from '../../interfaces/common';

interface DialogComponentProps {
  dialog: IDialogInstance;
  onClose: (result: boolean) => void;
}

const DialogComponent: React.FC<DialogComponentProps> = ({ dialog, onClose }) => {
  const [loading, setLoading] = useState(false);
  const { t } = useTranslation();
  const { config } = dialog;

  // 获取对话框图标
  const getDialogIcon = () => {
    const iconProps = { sx: { fontSize: 24, mr: 1 } };
    
    switch (config.type) {
      case 'info':
        return <InfoIcon {...iconProps} color="info" />;
      case 'success':
        return <SuccessIcon {...iconProps} color="success" />;
      case 'warning':
        return <WarningIcon {...iconProps} color="warning" />;
      case 'error':
        return <ErrorIcon {...iconProps} color="error" />;
      case 'confirm':
        return <ConfirmIcon {...iconProps} color="warning" />;
      default:
        return null;
    }
  };

  // 获取确认按钮颜色
  const getConfirmButtonColor = () => {
    switch (config.type) {
      case 'error':
      case 'warning':
        return 'error';
      case 'success':
        return 'success';
      case 'info':
        return 'info';
      default:
        return 'primary';
    }
  };

  // 处理确认操作
  const handleConfirm = async () => {
    try {
      setLoading(true);
      
      if (config.onConfirm) {
        await config.onConfirm();
      }
      
      onClose(true);
    } catch (error) {
      console.error('Dialog confirm error:', error);
      // 即使出错也关闭对话框，但返回false
      onClose(false);
    } finally {
      setLoading(false);
    }
  };

  // 处理取消操作
  const handleCancel = () => {
    if (config.onCancel) {
      config.onCancel();
    }
    onClose(false);
  };

  // 处理遮罩点击
  const handleBackdropClick = () => {
    if (config.maskClosable !== false) {
      handleCancel();
    }
  };

  return (
    <Dialog
      open={true}
      onClose={handleBackdropClick}
      maxWidth="sm"
      fullWidth
      slotProps={{
        paper: {
          sx: {
            width: config.width || 'auto',
            minWidth: config.width || '300px',
            maxWidth: config.width || '500px',
          }
        }
      }}
    >
      {/* 标题栏 */}
      <DialogTitle sx={{ display: 'flex', alignItems: 'center', pr: 1 }}>
        <Box sx={{ display: 'flex', alignItems: 'center', flex: 1 }}>
          {getDialogIcon()}
          <Typography variant="h6" component="span">
            {config.title || t('dialog.confirm')}
          </Typography>
        </Box>
        <IconButton
          onClick={handleCancel}
          size="small"
          sx={{ ml: 1 }}
        >
          <CloseIcon />
        </IconButton>
      </DialogTitle>

      {/* 内容区域 */}
      <DialogContent>
        <Typography variant="body1" sx={{ py: 1 }}>
          {config.content}
        </Typography>
      </DialogContent>

      {/* 操作按钮 */}
      <DialogActions sx={{ px: 3, pb: 2 }}>
        {config.showCancel !== false && (
          <Button
            onClick={handleCancel}
            variant="outlined"
            disabled={loading}
          >
            {config.cancelText || t('common.cancel')}
          </Button>
        )}
        <Button
          onClick={handleConfirm}
          variant="contained"
          color={getConfirmButtonColor() as any}
          disabled={loading}
          sx={{ ml: 1 }}
        >
          {loading ? t('dialog.processing') : (config.confirmText || t('common.confirm'))}
        </Button>
      </DialogActions>
    </Dialog>
  );
};

export default DialogComponent;