media

type Content struct {
	Body          io.ReadCloser
	ContentLength int64
}

type Loader interface {
	// DirectURL reports a URL that any HTTP client can fetch without special
	// headers — suitable to hand to Telegram inline results or API clients.
	// ok is false when the item can only be obtained by downloading it via Open
	// (e.g. TikTok, whose CDN requires cookies + referer).
	DirectURL(item *models.MediaItem) (url string, ok bool)

	// Open streams the item's content, applying any required download headers.
	// The caller must close Content.Body.
	Open(ctx context.Context, item *models.MediaItem) (*Content, error)

	// ContentLength reports the item's size in bytes via a HEAD request, applying
	// any required download headers. Returns -1 when the source does not report a
	// size. Lets callers decide on the size without downloading the body (e.g.
	// inline queries that must offer a download link for files over Telegram's
	// upload limit).
	ContentLength(ctx context.Context, item *models.MediaItem) (int64, error)
}