export async function getBiliBiliVideoInfo(
	bvidORaid?: string | number,
	region: string = "hangzhou",
) {
	const bvid = typeof bvidORaid === "string" ? bvidORaid : undefined;
	const aid = typeof bvidORaid === "number" ? bvidORaid : undefined;

	const baseURL = "https://api.bilibili.com/x/web-interface/view/detail";
	const urlObject = new URL(baseURL);

	if (aid) {
		urlObject.searchParams.append("aid", aid.toString());
		const finalURL = urlObject.toString();
		return await proxyRequestWithRegion(finalURL, region);
	} else if (bvid) {
		urlObject.searchParams.append("bvid", bvid);
		const finalURL = urlObject.toString();
		return await proxyRequestWithRegion(finalURL, region);
	} else {
		return null;
	}
}

async function proxyRequestWithRegion(
	url: string,
	region: string,
): Promise<any | null> {
	const td = new TextDecoder();
	// aliyun configure set  --access-key-id $ALIYUN_AK --access-key-secret $ALIYUN_SK --region cn-shenzhen --profile CVSA-shenzhen --mode AK
	const p = await new Deno.Command("aliyun", {
		args: [
			"fc",
			"POST",
			`/2023-03-30/functions/proxy-${region}/invocations`,
			"--qualifier",
			"LATEST",
			"--header",
			"Content-Type=application/json;x-fc-invocation-type=Sync;x-fc-log-type=None;",
			"--body",
			JSON.stringify({ url: url }),
			"--profile",
			`CVSA-${region}`,
		],
	}).output();
	try {
		const out = td.decode(p.stdout);
		const rawData = JSON.parse(out);
		if (rawData.statusCode !== 200) {
			console.error(
				`Error proxying request ${url} to ${region} , statusCode: ${rawData.statusCode}`,
			);
			return null;
		} else {
			return JSON.parse(rawData.body);
		}
	} catch (e) {
		console.error(`Error proxying request ${url} to ${region}: ${e}`);
		return null;
	}
}