'use client';

import { useState } from 'react';
import {
  Box,
  IconButton,
  Dialog,
  DialogTitle,
  DialogContent,
  DialogActions,
  Button,
  TextField,
  Typography,
  Tooltip,
  Snackbar,
  Alert,
} from '@mui/material';
import { ThumbUp, ThumbDown, ThumbUpOutlined, ThumbDownOutlined } from '@mui/icons-material';
import { useTranslation } from '@/hooks/useTranslation';
import apiClient from '@/lib/api/client';

interface MessageFeedbackProps {
  messageId: string;
  conversationId: string | null;
}

export function MessageFeedback({ messageId, conversationId }: MessageFeedbackProps) {
  const { t } = useTranslation('ai');
  const [feedbackType, setFeedbackType] = useState<'positive' | 'negative' | null>(null);
  const [dialogOpen, setDialogOpen] = useState(false);
  const [feedbackText, setFeedbackText] = useState('');
  const [isSubmitting, setIsSubmitting] = useState(false);
  const [snackbarOpen, setSnackbarOpen] = useState(false);

  const handleFeedback = async (type: 'positive' | 'negative') => {
    // If already submitted this type, ignore
    if (feedbackType === type) return;

    setFeedbackType(type);

    // For negative feedback, open dialog for additional comments
    if (type === 'negative') {
      setDialogOpen(true);
      return;
    }

    // For positive feedback, submit immediately
    await submitFeedback(type, '');
  };

  const submitFeedback = async (type: 'positive' | 'negative', text: string) => {
    if (!conversationId) return;

    setIsSubmitting(true);
    try {
      await apiClient.post('/api/v1/ai/feedback', {
        conversationId,
        messageId,
        feedbackType: type,
        feedbackText: text || undefined,
      });

      console.log(`✅ Feedback submitted: ${type}`);

      // Show success snackbar
      setSnackbarOpen(true);

      // Close dialog if open
      if (dialogOpen) {
        setDialogOpen(false);
        setFeedbackText('');
      }
    } catch (error) {
      console.error('Failed to submit feedback:', error);
      // Reset feedback type on error
      setFeedbackType(null);
    } finally {
      setIsSubmitting(false);
    }
  };

  const handleDialogSubmit = async () => {
    if (feedbackType) {
      await submitFeedback(feedbackType, feedbackText);
    }
  };

  const handleDialogClose = () => {
    setDialogOpen(false);
    setFeedbackText('');
    // Reset feedback type if closing without submitting
    if (!feedbackType || feedbackType === 'negative') {
      setFeedbackType(null);
    }
  };

  return (
    <>
      <Box sx={{ display: 'flex', gap: 0.5, mt: 1 }}>
        <Tooltip title={t('feedback.helpful') || 'Helpful'}>
          <IconButton
            size="small"
            onClick={() => handleFeedback('positive')}
            disabled={isSubmitting}
            sx={{
              color: feedbackType === 'positive' ? 'success.main' : 'text.secondary',
              '&:hover': { color: 'success.main' },
            }}
          >
            {feedbackType === 'positive' ? (
              <ThumbUp fontSize="small" />
            ) : (
              <ThumbUpOutlined fontSize="small" />
            )}
          </IconButton>
        </Tooltip>

        <Tooltip title={t('feedback.notHelpful') || 'Not helpful'}>
          <IconButton
            size="small"
            onClick={() => handleFeedback('negative')}
            disabled={isSubmitting}
            sx={{
              color: feedbackType === 'negative' ? 'error.main' : 'text.secondary',
              '&:hover': { color: 'error.main' },
            }}
          >
            {feedbackType === 'negative' ? (
              <ThumbDown fontSize="small" />
            ) : (
              <ThumbDownOutlined fontSize="small" />
            )}
          </IconButton>
        </Tooltip>
      </Box>

      {/* Feedback Dialog for negative feedback */}
      <Dialog
        open={dialogOpen}
        onClose={handleDialogClose}
        maxWidth="sm"
        fullWidth
      >
        <DialogTitle>
          {t('feedback.dialogTitle') || 'Help us improve'}
        </DialogTitle>
        <DialogContent>
          <Typography variant="body2" color="text.secondary" sx={{ mb: 2 }}>
            {t('feedback.dialogMessage') || 'What could have been better about this response?'}
          </Typography>
          <TextField
            autoFocus
            multiline
            rows={4}
            fullWidth
            placeholder={t('feedback.placeholder') || 'Your feedback (optional)'}
            value={feedbackText}
            onChange={(e) => setFeedbackText(e.target.value)}
            variant="outlined"
          />
        </DialogContent>
        <DialogActions>
          <Button onClick={handleDialogClose}>
            {t('feedback.cancel') || 'Cancel'}
          </Button>
          <Button
            onClick={handleDialogSubmit}
            variant="contained"
            disabled={isSubmitting}
          >
            {t('feedback.submit') || 'Submit'}
          </Button>
        </DialogActions>
      </Dialog>

      {/* Success Snackbar */}
      <Snackbar
        open={snackbarOpen}
        autoHideDuration={3000}
        onClose={() => setSnackbarOpen(false)}
        anchorOrigin={{ vertical: 'bottom', horizontal: 'center' }}
      >
        <Alert
          onClose={() => setSnackbarOpen(false)}
          severity="success"
          sx={{ width: '100%' }}
        >
          {t('feedback.thankYou') || 'Thank you for your feedback!'}
        </Alert>
      </Snackbar>
    </>
  );
}