// src/components/JoinedGroupCard.tsx

import React, { FC } from 'react';
import { View, Text, StyleSheet } from 'react-native';

// Update the type to match the full data structure
interface JoinedGroup {
  id: string;
  groupName: string;
  description: string;
  visibility: 'PUBLIC' | 'PRIVATE';
  createdByUserId: number;
  createdByName: string; // Renamed from createdBy for clarity
  startDate: [number, number, number] | null;
  endDate: [number, number, number] | null;
  minParticipants: number;
  maxParticipants: number;
  currentParticipants: number;
  contributionAmount: number;
  cycleType: 'MONTHLY' | 'WEEKLY' | 'QUARTERLY' | 'CUSTOM';
  status: 'ACTIVE' | 'PENDING' | 'COMPLETED';
}

interface JoinedGroupCardProps {
  item: JoinedGroup | any;
}

// Helper function to format dates
const formatDate = (dateArray: [number, number, number] | null): string => {
  if (!dateArray) return 'N/A';
  const date = new Date(dateArray[0], dateArray[1] - 1, dateArray[2]);
  return date.toLocaleDateString('en-US', { month: 'short', day: 'numeric', year: 'numeric' });
};

// Helper to determine status color
const getStatusStyle = (status: JoinedGroup['status']) => {
    switch (status) {
        case 'ACTIVE':
            return {
                backgroundColor: '#D1FAE5', // Green tint
                textColor: '#065F46',       // Dark Green
            };
        case 'PENDING':
            return {
                backgroundColor: '#FEF3C7', // Yellow tint
                textColor: '#92400E',       // Dark Yellow/Brown
            };
        case 'COMPLETED':
            return {
                backgroundColor: '#E5E7EB', // Gray tint
                textColor: '#4B5563',       // Dark Gray
            };
        default:
            return {
                backgroundColor: '#E5E7EB',
                textColor: '#4B5563',
            };
    }
};

export const JoinedGroupCard: FC<JoinedGroupCardProps> = ({ item }) => {
  const progress = (item.currentParticipants / item.maxParticipants) * 100;
  const statusStyle = getStatusStyle(item.status);

  return (
    <View style={styles.card}>
      {/* Header */}
      <View style={styles.header}>
        <Text style={styles.groupName}>{item.groupName}</Text>
        <View style={[styles.statusBadge, { backgroundColor: statusStyle.backgroundColor }]}>
          <Text style={[styles.statusText, { color: statusStyle.textColor }]}>{item.status}</Text>
        </View>
      </View>
      <Text style={styles.createdBy}>Created by {item.createdByName}</Text>
      
      {/* Financial Info */}
      <View style={styles.infoRow}>
        <View style={styles.infoItem}>
          <Text style={styles.infoLabel}>Contribution</Text>
          <Text style={styles.infoValue}>₹{item.contributionAmount.toLocaleString('en-IN')}</Text>
        </View>
        <View style={styles.infoItem}>
          <Text style={styles.infoLabel}>Cycle</Text>
          <Text style={styles.infoValue}>{item.cycleType}</Text>
        </View>
      </View>

      {/* Participants Progress */}
      <View style={styles.progressContainer}>
        <View style={styles.progressLabels}>
          <Text style={styles.participantText}>Participants</Text>
          <Text style={styles.participantCount}>{item.currentParticipants} / {item.maxParticipants}</Text>
        </View>
        <View style={styles.progressBarBackground}>
          <View style={[styles.progressBarFill, { width: `${progress}%` }]} />
        </View>
      </View>

      {/* Dates */}
      <View style={styles.footer}>
        <Text style={styles.dateText}>
            {formatDate(item.startDate)} - {formatDate(item.endDate)}
        </Text>
      </View>
    </View>
  );
};

const styles = StyleSheet.create({
  card: {
    backgroundColor: '#FFFFFF',
    borderRadius: 16,
    padding: 20,
    marginBottom: 16,
    shadowColor: '#374151',
    shadowOpacity: 0.08,
    shadowRadius: 10,
    shadowOffset: { width: 0, height: 4 },
    elevation: 3,
  },
  header: {
    flexDirection: 'row',
    justifyContent: 'space-between',
    alignItems: 'flex-start',
    marginBottom: 4,
  },
  groupName: {
    fontSize: 20,
    fontWeight: 'bold',
    color: '#1F2937',
    flexShrink: 1,
  },
  createdBy: {
    fontSize: 14,
    color: '#6B7280',
    marginBottom: 16,
  },
  statusBadge: {
    paddingHorizontal: 10,
    paddingVertical: 5,
    borderRadius: 12,
  },
  statusText: {
    fontSize: 12,
    fontWeight: '600',
    textTransform: 'uppercase',
  },
  infoRow: {
    flexDirection: 'row',
    justifyContent: 'space-between',
    paddingVertical: 16,
    borderTopWidth: 1,
    borderBottomWidth: 1,
    borderColor: '#F3F4F6',
    marginBottom: 16,
  },
  infoItem: {
    alignItems: 'flex-start',
  },
  infoLabel: {
    fontSize: 14,
    color: '#6B7280',
    marginBottom: 4,
  },
  infoValue: {
    fontSize: 16,
    fontWeight: '600',
    color: '#111827',
    textTransform: 'capitalize',
  },
  progressContainer: {
    marginBottom: 16,
  },
  progressLabels: {
    flexDirection: 'row',
    justifyContent: 'space-between',
    marginBottom: 8,
  },
  participantText: {
    fontSize: 14,
    color: '#6B7280',
  },
  participantCount: {
    fontSize: 14,
    fontWeight: '600',
    color: '#111827',
  },
  progressBarBackground: {
    height: 8,
    backgroundColor: '#E5E7EB',
    borderRadius: 4,
    overflow: 'hidden',
  },
  progressBarFill: {
    height: '100%',
    backgroundColor: '#4F46E5',
    borderRadius: 4,
  },
  footer: {
    alignItems: 'center',
    marginTop: 8,
  },
  dateText: {
    fontSize: 14,
    color: '#4B5563',
    fontWeight: '500',
  },
});