enum WizProvisioningPermissionStatus { granted, requestable, settingsRequired }

class WizProvisioningEnvironment {
  final String platform;
  final int? androidApiLevel;
  final bool smartPairingSupported;
  final bool wifiSettingsSupported;
  final bool appSettingsSupported;
  final WizProvisioningPermissionStatus permissionStatus;
  final bool locationServicesEnabled;
  final bool connectedToWifi;
  final String? ssid;
  final String? bssid;
  final int? frequencyMhz;

  const WizProvisioningEnvironment({
    required this.platform,
    required this.androidApiLevel,
    required this.smartPairingSupported,
    required this.wifiSettingsSupported,
    required this.appSettingsSupported,
    required this.permissionStatus,
    required this.locationServicesEnabled,
    required this.connectedToWifi,
    required this.ssid,
    required this.bssid,
    required this.frequencyMhz,
  });

  factory WizProvisioningEnvironment.unsupported() =>
      const WizProvisioningEnvironment(
        platform: 'unknown',
        androidApiLevel: null,
        smartPairingSupported: false,
        wifiSettingsSupported: false,
        appSettingsSupported: false,
        permissionStatus: WizProvisioningPermissionStatus.granted,
        locationServicesEnabled: true,
        connectedToWifi: false,
        ssid: null,
        bssid: null,
        frequencyMhz: null,
      );

  factory WizProvisioningEnvironment.fromMap(Map<String, dynamic> raw) {
    return WizProvisioningEnvironment(
      platform: raw['platform'] as String? ?? 'unknown',
      androidApiLevel: (raw['androidApiLevel'] as num?)?.toInt(),
      smartPairingSupported: raw['smartPairingSupported'] == true,
      wifiSettingsSupported: raw['wifiSettingsSupported'] == true,
      appSettingsSupported: raw['appSettingsSupported'] == true,
      permissionStatus: _permissionStatusFromPlatformValue(
        raw['permissionStatus'] as String?,
      ),
      locationServicesEnabled: raw['locationServicesEnabled'] != false,
      connectedToWifi: raw['connectedToWifi'] == true,
      ssid: _normalizeText(raw['ssid']),
      bssid: _normalizeText(raw['bssid']),
      frequencyMhz: (raw['frequencyMhz'] as num?)?.toInt(),
    );
  }

  bool get permissionsGranted =>
      permissionStatus == WizProvisioningPermissionStatus.granted;

  bool get permissionRequestable =>
      permissionStatus == WizProvisioningPermissionStatus.requestable;

  bool get requiresAppSettings =>
      permissionStatus == WizProvisioningPermissionStatus.settingsRequired;

  bool get isAndroid => platform == 'android';

  bool get isOn24Ghz =>
      frequencyMhz != null && frequencyMhz! >= 2400 && frequencyMhz! < 2500;

  bool get isLikelyOn5Ghz =>
      frequencyMhz != null && frequencyMhz! >= 4900 && frequencyMhz! < 6000;

  WizProvisioningEnvironment copyWith({
    String? platform,
    int? androidApiLevel,
    bool? smartPairingSupported,
    bool? wifiSettingsSupported,
    bool? appSettingsSupported,
    WizProvisioningPermissionStatus? permissionStatus,
    bool? locationServicesEnabled,
    bool? connectedToWifi,
    String? ssid,
    String? bssid,
    int? frequencyMhz,
    bool clearWifiInfo = false,
  }) {
    return WizProvisioningEnvironment(
      platform: platform ?? this.platform,
      androidApiLevel: androidApiLevel ?? this.androidApiLevel,
      smartPairingSupported:
          smartPairingSupported ?? this.smartPairingSupported,
      wifiSettingsSupported:
          wifiSettingsSupported ?? this.wifiSettingsSupported,
      appSettingsSupported: appSettingsSupported ?? this.appSettingsSupported,
      permissionStatus: permissionStatus ?? this.permissionStatus,
      locationServicesEnabled:
          locationServicesEnabled ?? this.locationServicesEnabled,
      connectedToWifi: connectedToWifi ?? this.connectedToWifi,
      ssid: clearWifiInfo ? null : (ssid ?? this.ssid),
      bssid: clearWifiInfo ? null : (bssid ?? this.bssid),
      frequencyMhz: clearWifiInfo ? null : (frequencyMhz ?? this.frequencyMhz),
    );
  }

  static WizProvisioningPermissionStatus _permissionStatusFromPlatformValue(
    String? value,
  ) {
    switch (value) {
      case 'granted':
        return WizProvisioningPermissionStatus.granted;
      case 'settings_required':
        return WizProvisioningPermissionStatus.settingsRequired;
      case 'requestable':
      default:
        return WizProvisioningPermissionStatus.requestable;
    }
  }

  static String? _normalizeText(Object? raw) {
    final text = raw as String?;
    if (text == null) {
      return null;
    }
    final trimmed = text.trim();
    return trimmed.isEmpty ? null : trimmed;
  }
}