interface DeviceEntry {
  vendorId: number;
  productId: number;
  displayName: string;
  manufacturer: string;
  product: string;
  serialNumber: string;
}

interface CpuTempResult {
  main: number;
  cores: number[];
  max: number;
  error?: string;
}

interface RamResult {
  total: number;
  free: number;
  used: number;
  usedPercent: string;
  error?: string;
}

interface GpuController {
  vendor: string;
  model: string;
  temperatureGpu: number | null;
  memoryUsed: number | null;
  memoryTotal: number | null;
}

interface ElectronAPI {
  systemCpuTemp: () => Promise<CpuTempResult>;
  systemRam: () => Promise<RamResult>;
  systemGpu: () => Promise<GpuController[] | { error: string }>;
  usbListDevices: () => Promise<DeviceEntry[] | { error: string }>;
  usbConnect: (vendorId: number, productId: number) => Promise<{ success: boolean } | { error: string }>;
  prefsGet: (key?: string) => Promise<unknown>;
  prefsSet: (key: string, value: unknown) => Promise<unknown>;
  prefsDelete: (key: string) => Promise<unknown>;
  dialogOpenFile: (options?: unknown) => Promise<{ canceled: boolean; filePaths: string[] }>;
  dialogSaveFile: (options?: unknown) => Promise<{ canceled: boolean; filePath: string }>;
}

interface Window {
  electronAPI: ElectronAPI;
}