import 'package:freezed_annotation/freezed_annotation.dart';

part 'system_stats_model.freezed.dart';
part 'system_stats_model.g.dart';

/// System statistics response from Core API.
@freezed
sealed class SystemStats with _$SystemStats {
  const factory SystemStats({
    required CpuStats cpu,
    required MemoryStats memory,
    required List<DiskStats> disks,
    required NetworkStats network,
    required GpuStats gpu,
    required String hostname,
    @JsonKey(name: 'queried_at') required DateTime queriedAt,
  }) = _SystemStats;

  factory SystemStats.fromJson(Map<String, dynamic> json) =>
      _$SystemStatsFromJson(json);
}

@freezed
sealed class CpuStats with _$CpuStats {
  const factory CpuStats({
    @JsonKey(name: 'usage_percent') required double usagePercent,
    required int cores,
    @JsonKey(name: 'load_1m') double? load1m,
    @JsonKey(name: 'load_5m') double? load5m,
    @JsonKey(name: 'load_15m') double? load15m,
  }) = _CpuStats;

  factory CpuStats.fromJson(Map<String, dynamic> json) =>
      _$CpuStatsFromJson(json);
}

@freezed
sealed class MemoryStats with _$MemoryStats {
  const factory MemoryStats({
    @JsonKey(name: 'usage_percent') required double usagePercent,
    @JsonKey(name: 'total_bytes') required int totalBytes,
    @JsonKey(name: 'used_bytes') required int usedBytes,
    @JsonKey(name: 'available_bytes') required int availableBytes,
  }) = _MemoryStats;

  factory MemoryStats.fromJson(Map<String, dynamic> json) =>
      _$MemoryStatsFromJson(json);
}

@freezed
sealed class DiskStats with _$DiskStats {
  const factory DiskStats({
    @JsonKey(name: 'mount_point') required String mountPoint,
    required String device,
    required String fstype,
    @JsonKey(name: 'usage_percent') required double usagePercent,
    @JsonKey(name: 'total_bytes') required int totalBytes,
    @JsonKey(name: 'used_bytes') required int usedBytes,
    @JsonKey(name: 'free_bytes') required int freeBytes,
  }) = _DiskStats;

  factory DiskStats.fromJson(Map<String, dynamic> json) =>
      _$DiskStatsFromJson(json);
}

@freezed
sealed class NetworkStats with _$NetworkStats {
  const factory NetworkStats({
    @JsonKey(name: 'bytes_sent') required int bytesSent,
    @JsonKey(name: 'bytes_recv') required int bytesRecv,
    @JsonKey(name: 'bytes_total') required int bytesTotal,
  }) = _NetworkStats;

  factory NetworkStats.fromJson(Map<String, dynamic> json) =>
      _$NetworkStatsFromJson(json);
}

@freezed
sealed class GpuStats with _$GpuStats {
  const factory GpuStats({
    required bool available,
    String? name,
    @JsonKey(name: 'usage_percent') double? usagePercent,
    @JsonKey(name: 'total_bytes') int? totalBytes,
    @JsonKey(name: 'used_bytes') int? usedBytes,
    @JsonKey(name: 'free_bytes') int? freeBytes,
  }) = _GpuStats;

  factory GpuStats.fromJson(Map<String, dynamic> json) =>
      _$GpuStatsFromJson(json);
}