From 21be7883c43519a81fd15d7c73948ea81cf3a492 Mon Sep 17 00:00:00 2001
From: alikia2x <alikia2x@outlook.com>
Date: Sun, 27 Jul 2025 15:28:02 +0800
Subject: [PATCH] update: metadata archive script

---
 packages/crawler/net/getVideoDetails.ts |   4 +-
 src/metadataArchive.ts                  | 116 +++++++++++++++++++++++-
 2 files changed, 116 insertions(+), 4 deletions(-)

diff --git a/packages/crawler/net/getVideoDetails.ts b/packages/crawler/net/getVideoDetails.ts
index 13c942e..432cbf2 100644
--- a/packages/crawler/net/getVideoDetails.ts
+++ b/packages/crawler/net/getVideoDetails.ts
@@ -2,9 +2,9 @@ import networkDelegate from "@core/net/delegate.ts";
 import type { VideoDetailsData, VideoDetailsResponse } from "@core/net/bilibili.d.ts";
 import logger from "@core/log/logger.ts";
 
-export async function getVideoDetails(aid: number): Promise<VideoDetailsData | null> {
+export async function getVideoDetails(aid: number, archive: boolean = false): Promise<VideoDetailsData | null> {
 	const url = `https://api.bilibili.com/x/web-interface/view/detail?aid=${aid}`;
-	const data = await networkDelegate.request<VideoDetailsResponse>(url, "getVideoInfo");
+	const data = await networkDelegate.request<VideoDetailsResponse>(url, archive ? "" : "getVideoInfo");
 	const errMessage = `Error fetching metadata for ${aid}:`;
 	if (data.code !== 0) {
 		logger.error(errMessage + data.code + "-" + data.message, "net", "fn:getVideoInfo");
diff --git a/src/metadataArchive.ts b/src/metadataArchive.ts
index 1f6ad77..bb2bffb 100644
--- a/src/metadataArchive.ts
+++ b/src/metadataArchive.ts
@@ -1,24 +1,78 @@
 import arg from "arg";
-//import { getVideoDetails } from "@crawler/net/getVideoDetails";
+import { Database } from "bun:sqlite";
+import { getVideoDetails } from "@crawler/net/getVideoDetails";
 import logger from "@core/log/logger";
 
+const SECOND = 1000;
+const SECONDS = SECOND;
+const MINUTE = 60 * SECONDS;
+const MINUTES = MINUTE;
+const IPs = 6;
+
+const rateLimits = [
+	{ window: 5 * MINUTES, maxRequests: 160 * IPs },
+	{ window: 30 * SECONDS, maxRequests: 20 * IPs },
+	{ window: 1.2 * SECOND, maxRequests: 1 * IPs }
+];
+
+const requestQueue: number[] = [];
+
+function isRateLimited(): boolean {
+	const now = Date.now();
+	return rateLimits.some(({ window, maxRequests }) => {
+		const windowStart = now - window;
+		const requestsInWindow = requestQueue.filter((timestamp) => timestamp >= windowStart).length;
+		return requestsInWindow >= maxRequests;
+	});
+}
+
+function logProgress(aid: number, processedAids: number, totalAids: number, startTime: number) {
+	const elapsedTime = Date.now() - startTime;
+	const elapsedSeconds = Math.floor(elapsedTime / 1000);
+	const elapsedMinutes = Math.floor(elapsedSeconds / 60);
+	const elapsedHours = Math.floor(elapsedMinutes / 60);
+
+	const remainingAids = totalAids - processedAids;
+	const averageTimePerAid = elapsedTime / processedAids;
+	const eta = remainingAids * averageTimePerAid;
+	const etaSeconds = Math.floor(eta / 1000);
+	const etaMinutes = Math.floor(etaSeconds / 60);
+	const etaHours = Math.floor(etaMinutes / 60);
+
+	const progress = `${processedAids}/${totalAids}, ${((processedAids / totalAids) * 100).toFixed(
+		2
+	)}%, elapsed ${elapsedHours.toString().padStart(2, "0")}:${(elapsedMinutes % 60).toString().padStart(2, "0")}:${(
+		elapsedSeconds % 60
+	)
+		.toString()
+		.padStart(2, "0")}, ETA ${etaHours}h${(etaMinutes % 60).toString().padStart(2, "0")}m`;
+	console.log(`Updated aid ${aid}, ${progress}`);
+}
+
 const quit = (reason: string) => {
 	logger.error(reason);
 	process.exit();
 };
 
 const args = arg({
-	"--aids": String // --port <number> or --port=<number>
+	"--aids": String,
+	"--db": String
 });
 
 const aidsFileName = args["--aids"];
+const dbPath = args["--db"];
 
 if (!aidsFileName) {
 	quit("Missing --aids <file_path>");
 }
 
+if (!dbPath) {
+	quit("Missing --db <path>");
+}
+
 const aidsFile = Bun.file(aidsFileName!);
 const fileExists = await aidsFile.exists();
+
 if (!fileExists) {
 	quit(`${aidsFile} does not exist.`);
 }
@@ -30,3 +84,61 @@ const aids = aidsText
 	.filter((num) => !Number.isNaN(num));
 
 logger.log(`Read ${aids.length} aids.`);
+
+const db = new Database(dbPath);
+const existingAids = db.query<{ aid: number }, []>(`SELECT aid from bili_info_crawl`).all();
+logger.log(`Existing Aids: ${existingAids.length}`);
+const existingAidsSet = new Set(existingAids.map((a) => a.aid));
+const newAids = aids.filter((aid) => !existingAidsSet.has(aid));
+logger.log(`New Aids: ${newAids.length}`);
+
+const totalAids = newAids.length;
+let processedAids = 0;
+const startTime = Date.now();
+
+const processAid = async (aid: number) => {
+	try {
+		const data = await getVideoDetails(aid);
+		if (data === null) {
+			updateAidStatus(aid, "failed");
+		} else {
+			updateAidStatus(aid, "success", data.View.bvid, JSON.stringify(data));
+		}
+	} catch (error) {
+		console.error(`Error updating aid ${aid}: ${error}`);
+		updateAidStatus(aid, "failed");
+	} finally {
+		processedAids++;
+		logProgress(aid, processedAids, totalAids, startTime);
+	}
+};
+
+const interval = setInterval(async () => {
+	if (newAids.length === 0) {
+		clearInterval(interval);
+		console.log("All aids processed.");
+		return;
+	}
+	if (!isRateLimited()) {
+		const aid = newAids.shift();
+		if (aid !== undefined) {
+			requestQueue.push(Date.now());
+			await processAid(aid);
+		}
+	}
+}, 50);
+
+function updateAidStatus(aid: number, status: string, bvid?: string, data?: string) {
+	const query = db.query(`
+        INSERT INTO bili_info_crawl
+		(aid, bvid, status, bvid, data, timestamp)
+		VALUES ($aid, $bvid, $status, $bvid, $data, $timestamp)
+    `);
+	query.run({
+		$aid: aid,
+		$bvid: bvid || null,
+		$status: status || null,
+		$data: data || null,
+		$timestamp: Date.now() / 1000
+	});
+}