import * as Hex from "../../common/hex"
import { type Track, decodeTrack } from "./track"

export interface Video {
	track: Track
	codec: string
	description?: Uint8Array
	bitrate?: number
	frame_rate?: number
	resolution: Dimensions
}

export interface Dimensions {
	width: number
	height: number
}

export function decodeVideo(o: unknown): o is Video {
	if (typeof o !== "object" || o === null) return false

	const obj = o as Partial<Video>
	if (!decodeTrack(obj.track)) return false
	if (typeof obj.codec !== "string") return false
	if (typeof obj.description !== "string") return false

	obj.description = Hex.decode(obj.description)

	return true
}