frontend/src/components/business/PostRefCard.tsx

import React, { useCallback } from 'react';
import { View, TouchableOpacity, StyleSheet, ActivityIndicator } from 'react-native';
import { MaterialCommunityIcons } from '@expo/vector-icons';
import { useRouter } from 'expo-router';

import Text from '../common/Text';
import { useAppColors, spacing, borderRadius } from '../../theme';
import type { PostRefSegmentData } from '../../types';
import * as hrefs from '../../navigation/hrefs';

interface PostRefCardProps {
  data: PostRefSegmentData;
  compact?: boolean;
  onPress?: (postId: string) => void;
}

const PostRefCard: React.FC<PostRefCardProps> = ({ data, compact = false, onPress }) => {
  const colors = useAppColors();
  const router = useRouter();

  const handlePress = useCallback(() => {
    if (onPress) {
      onPress(data.post_id);
    } else {
      router.push(hrefs.hrefPostDetail(data.post_id));
    }
  }, [data.post_id, onPress, router]);

  const isDeleted = data.status === 'deleted';
  const isHidden = data.status === 'hidden';
  const isUnavailable = isDeleted || isHidden || !data.accessible;
  const authorName = data.author?.nickname || '';

  if (isUnavailable) {
    return (
      <View
        style={[
          styles.container,
          { backgroundColor: colors.background.default, borderColor: colors.divider },
          compact && styles.containerCompact,
        ]}
      >
        <MaterialCommunityIcons name="link-off" size={16} color={colors.text.hint} />
        <Text style={[styles.unavailableText, { color: colors.text.hint }]} numberOfLines={1}>
          {isDeleted ? '该帖子已删除' : isHidden ? '该帖子不可见' : '请登录后查看'}
        </Text>
      </View>
    );
  }

  return (
    <TouchableOpacity
      style={[
        styles.container,
        { backgroundColor: colors.background.default, borderColor: colors.primary.light },
        compact && styles.containerCompact,
      ]}
      onPress={handlePress}
      activeOpacity={0.7}
    >
      <View style={[styles.iconWrap, { backgroundColor: colors.primary.light }]}>
        <MaterialCommunityIcons name="file-document-outline" size={14} color={colors.primary.main} />
      </View>
      <View style={styles.contentWrap}>
        <Text
          style={[styles.title, { color: colors.text.primary }]}
          numberOfLines={compact ? 1 : 2}
        >
          {data.title || '帖子'}
        </Text>
        {authorName ? (
          <Text style={[styles.author, { color: colors.text.secondary }]} numberOfLines={1}>
            @{authorName}
          </Text>
        ) : null}
      </View>
      <MaterialCommunityIcons name="chevron-right" size={16} color={colors.text.hint} />
    </TouchableOpacity>
  );
};

const styles = StyleSheet.create({
  container: {
    flexDirection: 'row',
    alignItems: 'center',
    borderWidth: 1,
    borderRadius: borderRadius.md,
    paddingVertical: spacing.sm,
    paddingHorizontal: spacing.md,
    marginTop: spacing.xs,
    marginBottom: spacing.xs,
  },
  containerCompact: {
    paddingVertical: spacing.xs,
    paddingHorizontal: spacing.sm,
  },
  iconWrap: {
    width: 24,
    height: 24,
    borderRadius: 4,
    alignItems: 'center',
    justifyContent: 'center',
    marginRight: spacing.sm,
  },
  contentWrap: {
    flex: 1,
    justifyContent: 'center',
  },
  title: {
    fontSize: 13,
    fontWeight: '500',
    lineHeight: 18,
  },
  author: {
    fontSize: 11,
    lineHeight: 14,
    marginTop: 1,
  },
  unavailableText: {
    fontSize: 13,
    marginLeft: spacing.sm,
  },
});

export default PostRefCard;