import 'dart:convert';

import 'package:camera/camera.dart';
import 'package:collection/collection.dart';
import 'package:flutter/material.dart';
import 'package:flutter_secure_storage/flutter_secure_storage.dart';
import 'package:quid_faciam_hodie/constants/storage_keys.dart';
import 'package:quid_faciam_hodie/utils/string_to_bool.dart';

const secure = FlutterSecureStorage();

class Settings extends ChangeNotifier {
  ResolutionPreset _resolution = ResolutionPreset.max;
  bool _askForMemoryAnnotations = false;
  bool _recordOnStartup = false;

  Settings(
      {final ResolutionPreset? resolution,
      final bool? askForMemoryAnnotations,
      final bool? recordOnStartup})
      : _resolution = resolution ?? ResolutionPreset.max,
        _askForMemoryAnnotations = askForMemoryAnnotations ?? true,
        _recordOnStartup = recordOnStartup ?? false;

  ResolutionPreset get resolution => _resolution;
  bool get askForMemoryAnnotations => _askForMemoryAnnotations;
  bool get recordOnStartup => _recordOnStartup;

  Map<String, dynamic> toJSONData() => {
        'resolution': _resolution.toString(),
        'askForMemoryAnnotations': _askForMemoryAnnotations ? 'true' : 'false',
        'recordOnStartup': _recordOnStartup ? 'true' : 'false',
      };

  Future<void> save() async {
    final data = toJSONData();

    await secure.write(
      key: SETTINGS_KEY,
      value: jsonEncode(data),
    );
  }

  static Future<Settings> restore() async {
    final rawData = await secure.read(key: SETTINGS_KEY);

    if (rawData == null) {
      return Settings();
    }

    final data = jsonDecode(rawData);
    final resolution = ResolutionPreset.values.firstWhereOrNull(
      (preset) => preset.toString() == data['resolution'],
    );
    final askForMemoryAnnotations =
        stringToBool(data['askForMemoryAnnotations']);
    final recordOnStartup = stringToBool(data['recordOnStartup']);

    return Settings(
      resolution: resolution,
      askForMemoryAnnotations: askForMemoryAnnotations,
      recordOnStartup: recordOnStartup,
    );
  }

  void setResolution(final ResolutionPreset value) {
    _resolution = value;
    notifyListeners();
    save();
  }

  void setAskForMemoryAnnotations(final bool askForMemoryAnnotations) {
    _askForMemoryAnnotations = askForMemoryAnnotations;
    notifyListeners();
    save();
  }

  void setRecordOnStartup(final bool recordOnStartup) {
    _recordOnStartup = recordOnStartup;
    notifyListeners();
    save();
  }
}