// Author: fruit.com.cn

import 'dart:async';

import 'package:flutter/material.dart';

import '../../core/legal/legal_opener.dart';
import '../../core/legal/legal_page.dart';
import '../../core/theme/app_colors.dart';
import '../../core/theme/app_dimens.dart';
import '../../l10n/app_localizations.dart';

/// 设置页里的服务条款和隐私协议。点一行就打开当前语言的公开页。
class LegalLinksCard extends StatelessWidget {
  const LegalLinksCard({super.key, this.open});

  final Future<void> Function(String url)? open;

  @override
  Widget build(BuildContext context) {
    final l10n = AppLocalizations.of(context)!;
    final rows = <_LegalRow>[
      _LegalRow(
        key: const Key('settings-terms'),
        title: l10n.legalTerms,
        path: legalTermsPath,
      ),
      _LegalRow(
        key: const Key('settings-privacy'),
        title: l10n.legalPrivacy,
        path: legalPrivacyPath,
      ),
    ];
    return Material(
      color: AppColors.card,
      borderRadius: BorderRadius.circular(AppDimens.cardRadius),
      clipBehavior: Clip.antiAlias,
      child: Column(
        children: [
          for (var index = 0; index < rows.length; index++) ...[
            if (index > 0)
              const Divider(
                height: AppDimens.mineGridDividerWidth,
                thickness: AppDimens.mineGridDividerWidth,
                color: AppColors.outlineVariantDark,
              ),
            _tile(context, rows[index]),
          ],
        ],
      ),
    );
  }

  Widget _tile(BuildContext context, _LegalRow row) {
    return InkWell(
      key: row.key,
      onTap: () => _open(context, row.path),
      child: SizedBox(
        height: AppDimens.mineMoreRowHeight,
        child: Padding(
          padding: const EdgeInsets.symmetric(horizontal: AppDimens.spaceLg),
          child: Row(
            children: [
              Expanded(
                child: Text(
                  row.title,
                  maxLines: 1,
                  overflow: TextOverflow.ellipsis,
                  style: const TextStyle(
                    color: AppColors.textPrimary,
                    fontSize: AppDimens.listTitle,
                  ),
                ),
              ),
              const Icon(
                Icons.chevron_right_rounded,
                color: AppColors.textSecondary,
                size: AppDimens.accountIcon,
              ),
            ],
          ),
        ),
      ),
    );
  }

  void _open(BuildContext context, String path) {
    final url = legalPageUrl(path, Localizations.localeOf(context));
    final custom = open;
    if (custom != null) {
      unawaited(custom(url));
      return;
    }
    unawaited(openLegalUrlOrNotify(context, url));
  }
}

class _LegalRow {
  const _LegalRow({required this.key, required this.title, required this.path});

  final Key key;
  final String title;
  final String path;
}