import 'dart:convert';

import 'package:enter_farma_plus_mobile/src/core/storage/tenant_session_store.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';

final recentSelectionsStoreProvider = Provider(
  (ref) => RecentSelectionsStore(ref.watch(secureStorageProvider)),
);

class RecentSelectionsStore {
  const RecentSelectionsStore(this._storage);

  final dynamic _storage;

  Future<List<Map<String, dynamic>>> read(String scope) async {
    final raw = await _storage.read(key: _key(scope));
    if (raw == null || raw.isEmpty) {
      return const [];
    }

    final decoded = jsonDecode(raw);
    if (decoded is! List) {
      return const [];
    }

    return decoded
        .whereType<Map>()
        .map((item) => Map<String, dynamic>.from(item))
        .toList();
  }

  Future<void> push(String scope, Map<String, dynamic> record) async {
    final current = await read(scope);
    final normalized = <String, dynamic>{
      'id': record['id'],
      'label': record['label'] ?? record['name'] ?? record['description'] ?? '',
      'subtitle': record['subtitle'] ?? record['number'] ?? '',
    };

    final items = <Map<String, dynamic>>[
      normalized,
      ...current.where((item) => '${item['id']}' != '${normalized['id']}'),
    ];

    await _storage.write(
      key: _key(scope),
      value: jsonEncode(items.take(8).toList()),
    );
  }

  String _key(String scope) => 'recent.$scope';
}