update

type Checker struct {
	// contains filtered or unexported fields
}

type DownloadProgress struct {
	Current        int64
	Total          int64
	Status         string
	BytesPerSecond float64       // Current download speed in bytes per second
	ETA            time.Duration // Estimated time remaining (-1 if unknown)
}

type Downloader struct {
	// contains filtered or unexported fields
}

type ProgressCallback func(progress DownloadProgress)

type ReleaseAsset struct {
	Name               string `json:"name"`
	BrowserDownloadURL string `json:"browser_download_url"`
	Size               int64  `json:"size"`
	ContentType        string `json:"content_type"`
}

type ReleaseInfo struct {
	TagName     string         `json:"tag_name"`
	Name        string         `json:"name"`
	HTMLURL     string         `json:"html_url"`
	PublishedAt string         `json:"published_at"`
	Prerelease  bool           `json:"prerelease"`
	Body        string         `json:"body"`
	Assets      []ReleaseAsset `json:"assets"`
}

type UpdateStatus struct {
	Available      bool
	CurrentVersion string
	LatestVersion  string
	ReleaseURL     string
	ReleaseNotes   string
	DownloadURL    string
	DownloadSize   int64
	Checksum       string // SHA256 checksum (empty if not available)
	ChecksumURL    string // URL to checksums file (for fetching)
	CheckedAt      time.Time
	Error          error
}