import 'package:flutter/material.dart';

import '../data/models/models.dart';
import '../theme/yanting_text.dart';
import '../theme/yanting_tokens.dart';
import 'app_card.dart';
import 'badges.dart';

class InstitutionCard extends StatelessWidget {
  const InstitutionCard({
    required this.institution,
    required this.onTap,
    super.key,
  });

  final Institution institution;
  final VoidCallback onTap;

  @override
  Widget build(BuildContext context) {
    final initials = institution.nameCn.isEmpty
        ? '研'
        : institution.nameCn.characters.take(2).toString();
    return AppCard(
      onTap: onTap,
      padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 14),
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.center,
        children: [
          InstitutionLogo(
            logoUrl: institution.logoUrl,
            initials: initials,
            size: 48,
          ),
          const SizedBox(width: 14),
          Expanded(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Text(
                  institution.nameCn,
                  maxLines: 1,
                  overflow: TextOverflow.ellipsis,
                  style: YantingText.listTitle.copyWith(
                    fontWeight: FontWeight.w700,
                  ),
                ),
                if (institution.nameEn.isNotEmpty) ...[
                  const SizedBox(height: 3),
                  Text(
                    institution.nameEn,
                    maxLines: 1,
                    overflow: TextOverflow.ellipsis,
                    style: YantingText.meta,
                  ),
                ],
                const SizedBox(height: 8),
                Wrap(
                  spacing: 7,
                  runSpacing: 7,
                  children: [
                    if (institution.institutionType.isNotEmpty)
                      AppBadge(
                        text: institution.institutionType,
                        kind: BadgeKind.tier,
                      ),
                    for (final topic in institution.coveredTopics.take(3))
                      AppBadge(text: topic),
                  ],
                ),
              ],
            ),
          ),
          const SizedBox(width: 10),
          Column(
            crossAxisAlignment: CrossAxisAlignment.end,
            children: [
              Text(
                '${institution.reportCount}',
                style: YantingText.sectionTitle.copyWith(
                  fontSize: 20,
                  fontFeatures: YantingTypographyFeatures.tabularNums,
                ),
              ),
              Text('份研报', style: YantingText.meta.copyWith(fontSize: 11)),
            ],
          ),
        ],
      ),
    );
  }
}

class InstitutionLogo extends StatelessWidget {
  const InstitutionLogo({
    required this.logoUrl,
    required this.initials,
    required this.size,
    super.key,
  });

  final String logoUrl;
  final String initials;
  final double size;

  @override
  Widget build(BuildContext context) {
    final fallback = DecoratedBox(
      decoration: BoxDecoration(
        color: YantingColors.secondary,
        border: Border.all(color: YantingColors.border),
        borderRadius: BorderRadius.circular(size * 0.25),
      ),
      child: Center(
        child: Text(
          initials,
          style: YantingText.meta.copyWith(
            color: YantingColors.secondaryForeground,
            fontSize: 14,
            fontWeight: FontWeight.w700,
            fontFeatures: null,
          ),
        ),
      ),
    );
    if (logoUrl.isEmpty) {
      return SizedBox(width: size, height: size, child: fallback);
    }
    return ClipRRect(
      borderRadius: BorderRadius.circular(size * 0.25),
      child: Image.network(
        logoUrl,
        width: size,
        height: size,
        fit: BoxFit.cover,
        errorBuilder: (context, error, stackTrace) => fallback,
      ),
    );
  }
}