import React, { useEffect, useMemo, useState } from 'react';
import { FlatList, StyleSheet, Text, View } from 'react-native';
import { useTranslation } from 'react-i18next';

import SheetModal from '@/components/ui/SheetModal';
import { MOCK_CONTENT } from '@/src/constants/mockContent';
import { getFavorites } from '@/src/storage/appStorage';

type Props = {
  visible: boolean;
  onClose: () => void;
};

export default function FavoritesModal({ visible, onClose }: Props) {
  const { t } = useTranslation();
  const [ids, setIds] = useState<string[]>([]);

  // 每次打开时刷新一次，确保展示最新“喜欢”
  useEffect(() => {
    if (!visible) return;
    let cancelled = false;
    (async () => {
      const list = await getFavorites();
      if (!cancelled) setIds(list);
    })();
    return () => {
      cancelled = true;
    };
  }, [visible]);

  const items = useMemo(() => {
    const map = new Map(MOCK_CONTENT.map((c) => [c.id, c]));
    return ids.map((id) => map.get(id)).filter(Boolean) as { id: string; text: string }[];
  }, [ids]);

  return (
    <SheetModal visible={visible} title={t('profile.favorites')} onClose={onClose}>
      <View style={styles.container}>
        {items.length === 0 ? (
          <Text style={styles.empty}>{t('favorites.empty')}</Text>
        ) : (
          <FlatList
            data={items}
            keyExtractor={(it) => it.id}
            contentContainerStyle={styles.list}
            renderItem={({ item }) => (
              <View style={styles.row}>
                <Text style={styles.text}>{item.text}</Text>
              </View>
            )}
          />
        )}
      </View>
    </SheetModal>
  );
}

const styles = StyleSheet.create({
  container: {
    borderRadius: 16,
    backgroundColor: 'rgba(255,255,255,0.75)',
    overflow: 'hidden',
    marginBottom: 8,
  },
  empty: {
    color: 'rgba(94,42,40,0.55)',
    fontSize: 15,
    textAlign: 'center',
    paddingVertical: 26,
    paddingHorizontal: 14,
  },
  list: {
    paddingBottom: 10,
  },
  row: {
    paddingHorizontal: 14,
    paddingVertical: 14,
    borderBottomWidth: StyleSheet.hairlineWidth,
    borderBottomColor: 'rgba(94,42,40,0.10)',
    backgroundColor: 'rgba(255,255,255,0.15)',
  },
  text: {
    color: '#5E2A28',
    fontSize: 15,
    lineHeight: 22,
    fontWeight: '600',
  },
});