Merge pull request #308 from th-ch/sponsorblock-plugin

Add Sponsorblock plugin

plugins/disable-autoplay/front.js

@@ -1,25 +1,10 @@
-let videoElement = null;
+const { ontimeupdate } = require("../../providers/video-element");
 
-const observer = new MutationObserver((mutations, observer) => {
-	if (!videoElement) {
-		videoElement = document.querySelector("video");
-	}
-
-	if (videoElement) {
-		videoElement.ontimeupdate = () => {
-			if (videoElement.currentTime === 0 && videoElement.duration !== NaN) {
-				// auto-confirm-when-paused plugin can interfere here if not disabled!
-				videoElement.pause();
-			}
-		};
-	}
-});
-
-function observeVideoElement() {
-	observer.observe(document, {
-		childList: true,
-		subtree: true,
+module.exports = () => {
+	ontimeupdate((videoElement) => {
+		if (videoElement.currentTime === 0 && videoElement.duration !== NaN) {
+			// auto-confirm-when-paused plugin can interfere here if not disabled!
+			videoElement.pause();
+		}
 	});
-}
-
-module.exports = observeVideoElement;
+};

plugins/sponsorblock/back.js

@@ -0,0 +1,51 @@
+const fetch = require("node-fetch");
+
+const defaultConfig = require("../../config/defaults");
+const registerCallback = require("../../providers/song-info");
+const { sortSegments } = require("./segments");
+
+let videoID;
+
+module.exports = (win, options) => {
+	const { apiURL, categories } = {
+		...defaultConfig.plugins.sponsorblock,
+		...options,
+	};
+
+	registerCallback(async (info) => {
+		const newURL = info.url || win.webContents.getURL();
+		const newVideoID = new URL(newURL).searchParams.get("v");
+
+		if (videoID !== newVideoID) {
+			videoID = newVideoID;
+			const segments = await fetchSegments(apiURL, categories);
+			win.webContents.send("sponsorblock-skip", segments);
+		}
+	});
+};
+
+const fetchSegments = async (apiURL, categories) => {
+	const sponsorBlockURL = `${apiURL}/api/skipSegments?videoID=${videoID}&categories=${JSON.stringify(
+		categories
+	)}`;
+	try {
+		const resp = await fetch(sponsorBlockURL, {
+			method: "GET",
+			headers: {
+				"Content-Type": "application/json",
+			},
+			redirect: "follow",
+		});
+		if (resp.status !== 200) {
+			return [];
+		}
+		const segments = await resp.json();
+		const sortedSegments = sortSegments(
+			segments.map((submission) => submission.segment)
+		);
+
+		return sortedSegments;
+	} catch {
+		return [];
+	}
+};

plugins/sponsorblock/front.js

@@ -0,0 +1,27 @@
+const { ipcRenderer } = require("electron");
+
+const is = require("electron-is");
+
+const { ontimeupdate } = require("../../providers/video-element");
+
+let currentSegments = [];
+
+module.exports = () => {
+	ipcRenderer.on("sponsorblock-skip", (_, segments) => {
+		currentSegments = segments;
+	});
+
+	ontimeupdate((videoElement) => {
+		currentSegments.forEach((segment) => {
+			if (
+				videoElement.currentTime >= segment[0] &&
+				videoElement.currentTime <= segment[1]
+			) {
+				videoElement.currentTime = segment[1];
+				if (is.dev()) {
+					console.log("SponsorBlock: skipping segment", segment);
+				}
+			}
+		});
+	});
+};

plugins/sponsorblock/segments.js

@@ -0,0 +1,29 @@
+// Segments are an array [ [start, end], … ]
+module.exports.sortSegments = (segments) => {
+	segments.sort((segment1, segment2) =>
+		segment1[0] === segment2[0]
+			? segment1[1] - segment2[1]
+			: segment1[0] - segment2[0]
+	);
+
+	const compiledSegments = [];
+	let currentSegment;
+
+	segments.forEach((segment) => {
+		if (!currentSegment) {
+			currentSegment = segment;
+			return;
+		}
+
+		if (currentSegment[1] < segment[0]) {
+			compiledSegments.push(currentSegment);
+			currentSegment = segment;
+			return;
+		}
+
+		currentSegment[1] = Math.max(currentSegment[1], segment[1]);
+	});
+	compiledSegments.push(currentSegment);
+
+	return compiledSegments;
+};

plugins/sponsorblock/tests/segments.test.js

@@ -0,0 +1,34 @@
+const { sortSegments } = require("../segments");
+
+test("Segment sorting", () => {
+	expect(
+		sortSegments([
+			[0, 3],
+			[7, 8],
+			[5, 6],
+		])
+	).toEqual([
+		[0, 3],
+		[5, 6],
+		[7, 8],
+	]);
+
+	expect(
+		sortSegments([
+			[0, 5],
+			[6, 8],
+			[4, 6],
+		])
+	).toEqual([[0, 8]]);
+
+	expect(
+		sortSegments([
+			[0, 6],
+			[7, 8],
+			[4, 6],
+		])
+	).toEqual([
+		[0, 6],
+		[7, 8],
+	]);
+});