import '../../internal/application/Severity.dart';

/// The single error shape every failure is normalised into before it reaches
/// the user. SSH, build and archive failures are all mapped onto this by
/// `ParentViewModel.handleError`, so the error overlay only ever renders one
/// kind of object.
class PeachError {
  final double code;
  final String message;
  final String helper;
  final String title;
  final String severity;

  PeachError({
    required this.code,
    required this.message,
    required this.helper,
    required this.title,
    required this.severity,
  });

  factory PeachError.fromJsonMap(Map<String, dynamic> json) => PeachError(
    code: (json['code'] as num?)?.toDouble() ?? 0,
    message: json['message'] as String? ?? '',
    helper: json['helper'] as String? ?? '',
    title: json['title'] as String? ?? 'Peach Error',
    severity: json['severity'] as String? ?? Severity.message.name,
  );

  Map<String, dynamic> toJson() => {
    'code': code,
    'message': message,
    'helper': helper,
    'title': title,
    'severity': severity,
  };
}

/// Best-effort decode of an error payload into a [PeachError]. Anything that
/// isn't a recognisable map is surfaced as a generic error rather than thrown,
/// so the overlay always has something to show.
PeachError getPeachError(dynamic data) {
  if (data is Map<String, dynamic>) return PeachError.fromJsonMap(data);
  return PeachError(
    code: 9000.01,
    message: data?.toString() ?? 'An unknown error occurred.',
    helper:
        'Retry the operation, and if the problem persists check the '
        'server and your connection details.',
    title: 'Peach Error',
    severity: Severity.message.name,
  );
}