Merge branch 'main' into fork-master

The new lockfile version appears to still be readable by old versions
of npm that only support version 1.

api/channels.js

@@ -1,18 +1,28 @@
 const {render} = require("pinski/plugins")
-const constants = require("../utils/constants")
 const {fetchChannel} = require("../utils/youtube")
 const {getUser} = require("../utils/getuser")
 const converters = require("../utils/converters")
 
 module.exports = [
 	{
-		route: `/channel/(${constants.regex.ucid})`, methods: ["GET"], code: async ({req, fill, url}) => {
-			const id = fill[0]
+		route: `/(c|channel|user)/(.+)`, methods: ["GET"], code: async ({req, fill, url}) => {
+			const path = fill[0]
+			const id = fill[1]
 			const user = getUser(req)
 			const settings = user.getSettingsOrDefaults()
-			const data = await fetchChannel(id, settings.instance)
-			const subscribed = user.isSubscribed(id)
+			const data = await fetchChannel(path, id, settings.instance)
 			const instanceOrigin = settings.instance
+
+			// problem with the channel? fetchChannel has collected the necessary information for us.
+			// we can render a skeleton page, display the message, and provide the option to unsubscribe.
+			if (data.error) {
+				const statusCode = data.missing ? 410 : 500
+				const subscribed = user.isSubscribed(id)
+				return render(statusCode, "pug/channel-error.pug", {req, settings, data, subscribed, instanceOrigin})
+			}
+
+			// everything is fine
+
 			// normalise info, apply watched status
 			if (!data.second__subCountText && data.subCount) {
 				data.second__subCountText = converters.subscriberCountToText(data.subCount)
@@ -24,7 +34,8 @@ module.exports = [
 					video.watched = watchedVideos.includes(video.videoId)
 				})
 			}
-			return render(200, "pug/channel.pug", {url, data, subscribed, instanceOrigin})
+			const subscribed = user.isSubscribed(data.authorId)
+			return render(200, "pug/channel.pug", {req, settings, data, subscribed, instanceOrigin})
 		}
 	}
 ]

api/filters.js

@@ -9,8 +9,7 @@ const {Matcher, PatternCompileError} = require("../utils/matcher")
 const filterMaxLength = 160
 const regexpEnabledText = constants.server_setup.allow_regexp_filters ? "" : "not"
 
-function getCategories(req) {
-	const user = getUser(req)
+function getCategories(user) {
 	const filters = user.getFilters()
 
 	// Sort filters into categories for display. Titles are already sorted.
@@ -39,7 +38,9 @@ function getCategories(req) {
 module.exports = [
 	{
 		route: "/filters", methods: ["GET"], code: async ({req, url}) => {
-			const categories = getCategories(req)
+			const user = getUser(req)
+			const categories = getCategories(user)
+			const settings = user.getSettingsOrDefaults()
 			let referrer = url.searchParams.get("referrer") || null
 
 			let type = null
@@ -54,7 +55,7 @@ module.exports = [
 				label = url.searchParams.get("label")
 			}
 
-			return render(200, "pug/filters.pug", {categories, type, contents, label, referrer, filterMaxLength, regexpEnabledText})
+			return render(200, "pug/filters.pug", {req, settings, categories, type, contents, label, referrer, filterMaxLength, regexpEnabledText})
 		}
 	},
 	{
@@ -100,8 +101,10 @@ module.exports = [
 					return true
 				}, state => {
 					const {type, contents, label, compileError} = state
-					const categories = getCategories(req)
-					return render(400, "pug/filters.pug", {categories, type, contents, label, compileError, filterMaxLength, regexpEnabledText})
+					const user = getUser(req)
+					const categories = getCategories(user)
+					const settings = user.getSettingsOrDefaults()
+					return render(400, "pug/filters.pug", {req, settings, categories, type, contents, label, compileError, filterMaxLength, regexpEnabledText})
 				})
 				.last(state => {
 					const {type, contents, label} = state

api/formapi.js

@@ -23,10 +23,9 @@ module.exports = [
 					const token = user.token
 
 					if (add) {
-						await fetchChannel(ucid, settings.instance)
+						await fetchChannel("channel", ucid, settings.instance)
 						db.prepare(
 							"INSERT INTO Subscriptions (token, ucid) VALUES (?, ?)"
-								+ " ON CONFLICT (token, ucid) DO UPDATE SET channel_missing = 0"
 						).run(token, ucid)
 					} else {
 						db.prepare("DELETE FROM Subscriptions WHERE token = ? AND ucid = ?").run(token, ucid)
@@ -41,7 +40,6 @@ module.exports = [
 							}),
 							content: "Success, redirecting..."
 						}
-						return redirect(params.get("referrer"), 303)
 					} else {
 						return {
 							statusCode: 200,

api/pages.js

@@ -1,16 +1,35 @@
 const {render} = require("pinski/plugins")
+const {getUser} = require("../utils/getuser")
 
 module.exports = [
 	{
 		route: "/", methods: ["GET"], code: async ({req}) => {
 			const userAgent = req.headers["user-agent"] || ""
 			const mobile = userAgent.toLowerCase().includes("mobile")
-			return render(200, "pug/home.pug", {mobile})
+			const user = getUser(req)
+			const settings = user.getSettingsOrDefaults()
+			return render(200, "pug/home.pug", {req, settings, mobile})
 		}
 	},
 	{
-		route: "/js-licenses", methods: ["GET"], code: async () => {
-			return render(200, "pug/js-licenses.pug")
+		route: "/(?:js-)?licenses", methods: ["GET"], code: async ({req}) => {
+			const user = getUser(req)
+			const settings = user.getSettingsOrDefaults()
+			return render(200, "pug/licenses.pug", {req, settings})
+		}
+	},
+	{
+		route: "/cant-think", methods: ["GET"], code: async ({req}) => {
+			const user = getUser(req)
+			const settings = user.getSettingsOrDefaults()
+			return render(200, "pug/cant-think.pug", {req, settings})
+		}
+	},
+	{
+		route: "/privacy", methods: ["GET"], code: async ({req}) => {
+			const user = getUser(req)
+			const settings = user.getSettingsOrDefaults()
+			return render(200, "pug/privacy.pug", {req, settings})
 		}
 	}
 ]

api/search.js

@@ -26,7 +26,7 @@ module.exports = [
 			const filters = user.getFilters()
 			results = converters.applyVideoFilters(results, filters).videos
 
-			return render(200, "pug/search.pug", {url, query, results, instanceOrigin})
+			return render(200, "pug/search.pug", {req, settings, url, query, results, instanceOrigin})
 		}
 	}
 ]

api/settings.js

@@ -7,12 +7,23 @@ const validate = require("../utils/validate")
 const V = validate.V
 
 module.exports = [
+	{
+		route: "/api/settings", methods: ["GET"], code: async ({req}) => {
+			const user = getUser(req)
+			const settings = user.getSettingsOrDefaults()
+			return {
+				statusCode: 200,
+				contentType: "application/json",
+				content: settings
+			}
+		}
+	},
 	{
 		route: "/settings", methods: ["GET"], code: async ({req}) => {
 			const user = getUser(req)
 			const settings = user.getSettings()
 			const instances = instancesList.get()
-			return render(200, "pug/settings.pug", {constants, user, settings, instances})
+			return render(200, "pug/settings.pug", {req, constants, user, settings, instances})
 		}
 	},
 	{

api/subscriptions.js

@@ -11,12 +11,14 @@ module.exports = [
 			let hasSubscriptions = false
 			let videos = []
 			let channels = []
+			let missingChannelCount = 0
 			let refreshed = null
 			if (user.token) {
 				// trigger a background refresh, needed if they came back from being inactive
 				refresher.skipWaiting()
 				// get channels
 				channels = db.prepare(`SELECT Channels.* FROM Channels INNER JOIN Subscriptions ON Channels.ucid = Subscriptions.ucid WHERE token = ? ORDER BY name`).all(user.token)
+				missingChannelCount = channels.reduce((a, c) => a + c.missing, 0)
 				// get refreshed status
 				refreshed = db.prepare(`SELECT min(refreshed) as min, max(refreshed) as max, count(refreshed) as count FROM Channels INNER JOIN Subscriptions ON Channels.ucid = Subscriptions.ucid WHERE token = ?`).get(user.token)
 				// get watched videos
@@ -37,7 +39,7 @@ module.exports = [
 			}
 			const settings = user.getSettingsOrDefaults()
 			const instanceOrigin = settings.instance
-			return render(200, "pug/subscriptions.pug", {url, settings, hasSubscriptions, videos, channels, refreshed, timeToPastText, instanceOrigin})
+			return render(200, "pug/subscriptions.pug", {req, url, settings, hasSubscriptions, videos, channels, missingChannelCount, refreshed, timeToPastText, instanceOrigin})
 		}
 	}
 ]

api/takedown.js

@@ -3,8 +3,8 @@ const {render} = require("pinski/plugins")
 
 module.exports = [
 	{
-		route: "/takedown", methods: ["GET"], code: async () => {
-			return render(200, "pug/takedown.pug", {constants})
+		route: "/takedown", methods: ["GET"], code: async ({req}) => {
+			return render(200, "pug/takedown.pug", {req, constants})
 		}
 	}
 ]

api/video.js

@@ -111,7 +111,7 @@ module.exports = [
 			// Check if playback is allowed
 			const videoTakedownInfo = db.prepare("SELECT id, org, url FROM TakedownVideos WHERE id = ?").get(id)
 			if (videoTakedownInfo) {
-				return render(451, "pug/takedown-video.pug", videoTakedownInfo)
+				return render(451, "pug/takedown-video.pug", Object.assign({req, settings}, videoTakedownInfo))
 			}
 
 			// Media fragment
@@ -129,7 +129,7 @@ module.exports = [
 			// Work out how to fetch the video
 			if (req.method === "GET") {
 				if (settings.local) { // skip to the local fetching page, which will then POST video data in a moment
-					return render(200, "pug/local-video.pug", {id})
+					return render(200, "pug/local-video.pug", {req, settings, id})
 				}
 				var instanceOrigin = settings.instance
 				var outURL = `${instanceOrigin}/api/v1/videos/${id}`
@@ -153,7 +153,7 @@ module.exports = [
 					// automatically add the entry to the videos list, so it won't be fetched again
 					const args = {id, ...channelTakedownInfo}
 					db.prepare("INSERT INTO TakedownVideos (id, org, url) VALUES (@id, @org, @url)").run(args)
-					return render(451, "pug/takedown-video.pug", channelTakedownInfo)
+					return render(451, "pug/takedown-video.pug", Object.assign({req, settings}, channelTakedownInfo))
 				}
 
 				// process stream list ordering
@@ -199,7 +199,7 @@ module.exports = [
 				}
 
 				return render(200, "pug/video.pug", {
-					url, video, formats, subscribed, instanceOrigin, mediaFragment, autoplay, continuous,
+					req, url, video, formats, subscribed, instanceOrigin, mediaFragment, autoplay, continuous,
 					sessionWatched, sessionWatchedNext, settings
 				})
 
@@ -225,7 +225,7 @@ module.exports = [
 				// Create appropriate formatted message
 				const message = render(0, `pug/errors/${errorType}.pug`, locals).content
 
-				return render(500, "pug/video.pug", {video: {videoId: id}, error: true, message})
+				return render(500, "pug/video.pug", {video: {videoId: id}, error: true, message, req, settings})
 			}
 		}
 	}

api/video_embed.js

@@ -0,0 +1,232 @@
+const {request} = require("../utils/request")
+/** @type {import("node-fetch").default} */
+// @ts-ignore
+const fetch = require("node-fetch")
+const {render} = require("pinski/plugins")
+const db = require("../utils/db")
+const {getToken, getUser} = require("../utils/getuser")
+const pug = require("pug")
+const converters = require("../utils/converters")
+const constants = require("../utils/constants")
+
+class InstanceError extends Error {
+	constructor(error, identifier) {
+		super(error)
+		this.identifier = identifier
+	}
+}
+
+class MessageError extends Error {
+}
+
+function formatOrder(format) {
+	// most significant to least significant
+	// key, max, order, transform
+	// asc: lower number comes first, desc: higher number comes first
+	const spec = [
+		{key: "second__height", max: 8000, order: "desc", transform: x => x ? Math.floor(x/96) : 0},
+		{key: "fps", max: 100, order: "desc", transform: x => x ? Math.floor(x/10) : 0},
+		{key: "type", max: " ".repeat(60), order: "asc", transform: x => x.length}
+	]
+	let total = 0
+	for (let i = 0; i < spec.length; i++) {
+		const s = spec[i]
+		let diff = s.transform(format[s.key])
+		if (s.order === "asc") diff = s.transform(s.max) - diff
+		total += diff
+		if (i+1 < spec.length) { // not the last spec item?
+			const s2 = spec[i+1]
+			total *= s2.transform(s2.max)
+		}
+	}
+	return -total
+}
+
+function sortFormats(video, preference) {
+	// Add second__ extensions to format objects, required if Invidious was the extractor
+	let formats = video.formatStreams.concat(video.adaptiveFormats)
+	for (const format of formats) {
+		if (!format.second__height && format.resolution) format.second__height = +format.resolution.slice(0, -1)
+		if (!format.second__order) format.second__order = formatOrder(format)
+		format.cloudtube__label = `${format.qualityLabel} ${format.container}`
+	}
+
+	// Properly build and order format list
+	const standard = video.formatStreams.slice().sort((a, b) => b.second__height - a.second__height)
+	const adaptive = video.adaptiveFormats.filter(f => f.type.startsWith("video") && f.qualityLabel).sort((a, b) => a.second__order - b.second__order)
+	for (const format of adaptive) {
+		if (!format.cloudtube__label.endsWith("*")) format.cloudtube__label += " *"
+	}
+	formats = standard.concat(adaptive)
+
+	// Reorder fomats based on user preference
+	if (preference === 1) { // best dash
+		formats.sort((a, b) => {
+			const a1 = a.second__height + a.fps / 100
+			const b1 = b.second__height + b.fps / 100
+			return b1 - a1
+		})
+	} else if (preference === 2) { // best <=1080p
+		formats.sort((a, b) => {
+			const a1 = a.second__height + a.fps / 100
+			const b1 = b.second__height + b.fps / 100
+			if (b1 > 1081) {
+				if (a1 > 1081) return b1 - a1
+				return -1
+			}
+			if (a1 > 1081) return 1
+			return b1 - a1
+		})
+	} else if (preference === 3) { // best low-fps
+		formats.sort((a, b) => {
+			if (b.fps > 30) {
+				if (a.fps < 30) return b.second__height - a.second__height
+				return -1
+			}
+			if (a.fps > 30) return 1
+			return b.second__height - a.second__height
+		})
+	} else if (preference === 4) { // 360p only
+		formats.sort((a, b) => {
+			if (a.itag == 18) return -1
+			if (b.itag == 18) return 1
+			return 0
+		})
+	} else { // preference === 0, best combined
+		// should already be correct
+	}
+
+	return formats
+}
+
+module.exports = [
+	{
+		route: `/embed/(${constants.regex.video_id})`, methods: ["GET"], upload: false, code: async ({req, url, body, fill}) => {
+			// Prepare data needed to render video page
+
+			const user = getUser(req)
+			const settings = user.getSettingsOrDefaults()
+			const id = fill[0];
+
+			// Check if playback is allowed
+			const videoTakedownInfo = db.prepare("SELECT id, org, url FROM TakedownVideos WHERE id = ?").get(id)
+			if (videoTakedownInfo) {
+				return render(451, "pug/takedown-video.pug", videoTakedownInfo)
+			}
+
+			// Media fragment
+			const t = url.searchParams.get("t")
+			let mediaFragment = converters.tToMediaFragment(t)
+
+			// Continuous mode
+			const continuous = url.searchParams.get("continuous") === "1"
+			const autoplay = url.searchParams.get("autoplay") === "1"
+			const swp = url.searchParams.get("session-watched")
+			const sessionWatched = swp ? swp.split(" ") : []
+			const sessionWatchedNext = sessionWatched.concat([id]).join("+")
+			if (continuous) settings.quality = 0 // autoplay with synced streams does not work
+
+			// Work out how to fetch the video
+			if (req.method === "GET") {
+				if (settings.local) { // skip to the local fetching page, which will then POST video data in a moment
+					return render(200, "pug/local-video.pug", {id})
+				}
+				var instanceOrigin = settings.instance
+				var outURL = `${instanceOrigin}/api/v1/videos/${id}`
+				var videoFuture = request(outURL).then(res => res.json())
+			} else { // req.method === "POST"
+				var instanceOrigin = "http://localhost:3000"
+				var videoFuture = JSON.parse(new URLSearchParams(body.toString()).get("video"))
+			}
+
+			try {
+				// Fetch the video
+				const video = await videoFuture
+
+				// Error handling
+				if (!video) throw new MessageError("The instance returned null.")
+				if (video.error) throw new InstanceError(video.error, video.identifier)
+
+				// Check if channel playback is allowed
+				const channelTakedownInfo = db.prepare("SELECT ucid, org, url FROM TakedownChannels WHERE ucid = ?").get(video.authorId)
+				if (channelTakedownInfo) {
+					// automatically add the entry to the videos list, so it won't be fetched again
+					const args = {id, ...channelTakedownInfo}
+					db.prepare("INSERT INTO TakedownVideos (id, org, url) VALUES (@id, @org, @url)").run(args)
+					return render(451, "pug/takedown-video.pug", channelTakedownInfo)
+				}
+
+				// process stream list ordering
+				const formats = sortFormats(video, settings.quality)
+
+				// process length text and view count
+				for (const rec of video.recommendedVideos) {
+					converters.normaliseVideoInfo(rec)
+				}
+
+				// filter list
+				const {videos, filteredCount} = converters.applyVideoFilters(video.recommendedVideos, user.getFilters())
+				video.recommendedVideos = videos
+
+				// get subscription data
+				const subscribed = user.isSubscribed(video.authorId)
+
+				// process watched videos
+				user.addWatchedVideoMaybe(video.videoId)
+				const watchedVideos = user.getWatchedVideos()
+				if (watchedVideos.length) {
+					for (const rec of video.recommendedVideos) {
+						rec.watched = watchedVideos.includes(rec.videoId)
+					}
+				}
+
+				// normalise view count
+				if (!video.second__viewCountText && video.viewCount) {
+					video.second__viewCountText = converters.viewCountToText(video.viewCount)
+				}
+
+				// apply media fragment to all sources
+				for (const format of formats) {
+					format.url += mediaFragment
+				}
+
+				// rewrite description
+				video.descriptionHtml = converters.rewriteVideoDescription(video.descriptionHtml, id)
+
+				// rewrite captions urls so they are served on the same domain via the /proxy route
+				for (const caption of video.captions) {
+					caption.url = `/proxy?${new URLSearchParams({"url": caption.url})}`
+				}
+
+				return render(200, "pug/video_embed.pug", {
+					url, video, formats, subscribed, instanceOrigin, mediaFragment, autoplay, continuous,
+					sessionWatched, sessionWatchedNext, settings
+				})
+
+			} catch (error) {
+				// Something went wrong, somewhere! Find out where.
+
+				let errorType = "unrecognised-error"
+				const locals = {instanceOrigin, error}
+
+				// Sort error category
+				if (error instanceof fetch.FetchError) {
+					errorType = "fetch-error"
+				} else if (error instanceof MessageError) {
+					errorType = "message-error"
+				} else if (error instanceof InstanceError) {
+					if (error.identifier === "RATE_LIMITED_BY_YOUTUBE" || error.message === "Could not extract video info. Instance is likely blocked.") {
+						errorType = "rate-limited"
+					} else {
+						errorType = "instance-error"
+					}
+				}
+
+				// Create appropriate formatted message
+				const message = render(0, `pug/errors/${errorType}.pug`, locals).content
+
+				return render(500, "pug/video_embed.pug", {video: {videoId: id}, error: true, message})
+			}
+		}
+	}
+]

background/feed-update.js

@@ -15,8 +15,8 @@ const prepared = {
 	channel_refreshed_update: db.prepare(
 		"UPDATE Channels SET refreshed = ? WHERE ucid = ?"
 	),
-	unsubscribe_all_from_channel: db.prepare(
-		"UPDATE Subscriptions SET channel_missing = 1 WHERE ucid = ?"
+	channel_mark_as_missing: db.prepare(
+		"UPDATE Channels SET missing = 1, missing_reason = ? WHERE ucid = ?"
 	)
 }
 
@@ -35,7 +35,7 @@ class RefreshQueue {
 		// get the next set of scheduled channels to refresh
 		const afterTime = Date.now() - constants.caching.seen_token_subscriptions_eligible
 		const channels = db.prepare(
-			"SELECT DISTINCT Subscriptions.ucid FROM SeenTokens INNER JOIN Subscriptions ON SeenTokens.token = Subscriptions.token AND SeenTokens.seen > ? WHERE Subscriptions.channel_missing = 0 ORDER BY SeenTokens.seen DESC"
+			"SELECT DISTINCT Subscriptions.ucid FROM SeenTokens INNER JOIN Subscriptions ON SeenTokens.token = Subscriptions.token INNER JOIN Channels ON Channels.ucid = Subscriptions.ucid WHERE Channels.missing = 0 AND SeenTokens.seen > ? ORDER BY SeenTokens.seen DESC"
 		).pluck().all(afterTime)
 		this.addLast(channels)
 		this.lastLoadTime = Date.now()
@@ -72,11 +72,12 @@ class Refresher {
 		this.refreshQueue = new RefreshQueue()
 		this.state = this.sym.ACTIVE
 		this.waitingTimeout = null
+		this.lastFakeNotFoundTime = 0
 		this.next()
 	}
 
 	refreshChannel(ucid) {
-		return fetch(`${constants.server_setup.local_instance_origin}/api/v1/channels/${ucid}/latest`).then(res => res.json()).then(root => {
+		return fetch(`${constants.server_setup.local_instance_origin}/api/v1/channels/${ucid}/latest`).then(res => res.json()).then(/** @param {any} root */ root => {
 			if (Array.isArray(root)) {
 				root.forEach(video => {
 					// organise
@@ -89,11 +90,24 @@ class Refresher {
 				prepared.channel_refreshed_update.run(Date.now(), ucid)
 				// console.log(`updated ${root.length} videos for channel ${ucid}`)
 			} else if (root.identifier === "PUBLISHED_DATES_NOT_PROVIDED") {
-				return [] // nothing we can do. skip this iteration.
+				// nothing we can do. skip this iteration.
 			} else if (root.identifier === "NOT_FOUND") {
-				// the channel does not exist. we should unsubscribe all users so we don't try again.
-				// console.log(`channel ${ucid} does not exist, unsubscribing all users`)
-				prepared.unsubscribe_all_from_channel.run(ucid)
+				// YouTube sometimes returns not found for absolutely no reason.
+				// There is no way to distinguish between a fake missing channel and a real missing channel without requesting the real endpoint.
+				// These fake missing channels often happen in bursts, which is why there is a cooldown.
+				const timeSinceLastFakeNotFound = Date.now() - this.lastFakeNotFoundTime
+				if (timeSinceLastFakeNotFound >= constants.caching.subscriptions_refesh_fake_not_found_cooldown) {
+					// We'll request the real endpoint to verify.
+					fetch(`${constants.server_setup.local_instance_origin}/api/v1/channels/${ucid}`).then(res => res.json()).then(/** @param {any} root */ root => {
+						if (root.error && (root.identifier === "NOT_FOUND" || root.identifier === "ACCOUNT_TERMINATED")) {
+							// The channel is really gone, and we should mark it as missing for everyone.
+							prepared.channel_mark_as_missing.run(root.error, ucid)
+						} else {
+							// The channel is not actually gone and YouTube is trolling us.
+							this.lastFakeNotFoundTime = Date.now()
+						}
+					})
+				} // else youtube is currently trolling us, skip this until later.
 			} else {
 				throw new Error(root.error)
 			}

html/browserconfig.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<browserconfig>
+    <msapplication>
+        <tile>
+            <square150x150logo src="/static/images/mstile-150x150.png"/>
+            <TileColor>#2b5797</TileColor>
+        </tile>
+    </msapplication>
+</browserconfig>

html/site.webmanifest

@@ -0,0 +1,34 @@
+{
+    "name": "CloudTube",
+    "short_name": "CloudTube",
+    "icons": [
+        {
+            "src": "/static/images/android-chrome-192x192.png",
+            "sizes": "192x192",
+            "type": "image/png",
+            "purpose": "any"
+        },
+        {
+            "src": "/static/images/android-chrome-512x512.png",
+            "sizes": "512x512",
+            "type": "image/png",
+            "purpose": "any"
+        },
+        {
+            "src": "/static/images/maskable-icon-192x192.png",
+            "sizes": "192x192",
+            "type": "image/png",
+            "purpose": "maskable"
+        },
+        {
+            "src": "/static/images/maskable-icon-512x512.png",
+            "sizes": "512x512",
+            "type": "image/png",
+            "purpose": "maskable"
+        }
+    ],
+    "theme_color": "#36393f",
+    "background_color": "#36393f",
+    "start_url": "/",
+    "display": "standalone"
+}

html/static/images/arrow-down-wide-light.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="22" height="8" viewBox="0 0 5.821 2.117"><path d="M1.269.53l.767.793h.161L2.964.53h.211v.265L2.117 1.852 1.058.794V.529z" fill="#202020" paint-order="markers stroke fill"/></svg>

html/static/images/safari-pinned-tab.svg

@@ -0,0 +1,33 @@
+<?xml version="1.0" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 20010904//EN"
+ "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">
+<svg version="1.0" xmlns="http://www.w3.org/2000/svg"
+ width="512.000000pt" height="512.000000pt" viewBox="0 0 512.000000 512.000000"
+ preserveAspectRatio="xMidYMid meet">
+<metadata>
+Created by potrace 1.14, written by Peter Selinger 2001-2017
+</metadata>
+<g transform="translate(0.000000,512.000000) scale(0.100000,-0.100000)"
+fill="#000000" stroke="none">
+<path d="M2667 4020 c-115 -29 -296 -105 -387 -162 -54 -34 -182 -133 -207
+-159 -12 -14 -33 -49 -47 -79 -13 -30 -48 -80 -78 -110 -46 -47 -170 -221
+-180 -252 -3 -7 -39 1 -96 21 -50 17 -147 43 -214 57 -111 23 -137 24 -258 18
+-87 -4 -154 -13 -190 -24 -30 -10 -82 -24 -115 -31 -90 -17 -163 -59 -231
+-131 -184 -197 -233 -305 -250 -554 -6 -90 -3 -115 31 -279 31 -152 44 -193
+81 -265 24 -47 59 -120 78 -162 19 -43 56 -106 82 -140 66 -88 173 -196 214
+-217 126 -65 482 -83 711 -35 68 14 156 36 194 49 95 32 317 43 420 22 39 -8
+104 -18 145 -22 41 -3 109 -12 150 -20 166 -31 322 -37 825 -33 420 4 509 7
+555 21 30 9 89 24 131 35 156 39 312 154 413 306 20 30 41 58 46 61 5 3 34 52
+64 108 43 82 58 123 75 206 26 126 27 278 5 387 -18 86 -32 121 -74 174 -15
+19 -34 49 -43 66 -34 67 -174 199 -262 248 -16 9 -52 32 -78 51 -27 19 -67 39
+-90 45 -23 6 -71 24 -107 39 -64 28 -340 91 -397 91 -28 0 -30 4 -56 88 -15
+48 -40 108 -55 134 -38 64 -224 269 -288 318 -63 48 -182 104 -250 118 -75 16
+-224 22 -267 12z m-428 -984 c7 -8 33 -16 59 -19 183 -20 276 -46 447 -127 61
+-29 128 -58 149 -66 22 -8 67 -32 100 -53 34 -21 84 -50 113 -65 29 -14 68
+-40 88 -57 31 -27 35 -37 35 -78 0 -40 -5 -51 -32 -77 -53 -49 -130 -100 -171
+-114 -21 -6 -57 -26 -80 -44 -49 -37 -70 -49 -192 -106 -49 -23 -99 -51 -111
+-61 -11 -10 -45 -32 -75 -48 -30 -16 -88 -47 -129 -70 -95 -52 -134 -54 -177
+-8 -74 76 -121 287 -133 592 -4 121 -13 236 -19 255 -19 60 -14 101 16 132 30
+31 91 39 112 14z"/>
+</g>
+</svg>

html/static/images/settings.svg

@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="25" height="25" viewBox="0 0 6.615 6.615"><path d="M2.64 0s-.03.94-.424 1.215C1.823 1.49.885.894.885.894L.112 2.232.109 2.23l.003.002c.01.006.797.499.838.974.042.478-.944.992-.944.992l.77 1.34s.83-.442 1.265-.24c.435.204.387 1.314.387 1.314l1.546.003s.032-.94.425-1.215c.393-.275 1.331.321 1.331.321l.775-1.338s-.798-.496-.84-.974c-.041-.478.944-.993.944-.993l-.77-1.34s-.83.443-1.265.24C4.14 1.113 4.187.002 4.187.002zm.688 2.25a1.106 1.106 0 110 2.211 1.106 1.106 0 010-2.21z" fill="#c4c4c4" paint-order="fill markers stroke"/></svg>
+<svg fill="currentColor" xmlns="http://www.w3.org/2000/svg" width="25" height="25" viewBox="0 0 6.615 6.615"><title>Settings</title><path d="M2.64 0s-.03.94-.424 1.215C1.823 1.49.885.894.885.894L.112 2.232.109 2.23l.003.002c.01.006.797.499.838.974.042.478-.944.992-.944.992l.77 1.34s.83-.442 1.265-.24c.435.204.387 1.314.387 1.314l1.546.003s.032-.94.425-1.215c.393-.275 1.331.321 1.331.321l.775-1.338s-.798-.496-.84-.974c-.041-.478.944-.993.944-.993l-.77-1.34s-.83.443-1.265.24C4.14 1.113 4.187.002 4.187.002zm.688 2.25a1.106 1.106 0 110 2.211 1.106 1.106 0 010-2.21z" paint-order="fill markers stroke"/></svg>

html/static/images/subscriptions.svg

@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="30" height="25" viewBox="0 0 7.937 6.615"><path d="M2.373 0h3.191a.52.52 0 01.521.521H1.852A.52.52 0 012.373 0zm-.91.794h5.011c.371 0 .67.298.67.67v.123l-6.35-.016v-.108c0-.37.298-.67.67-.67zm-.405 1.058C.472 1.852 0 2.184 0 2.77v2.868c0 .586.472.977 1.058.977H6.88c.586 0 1.059-.39 1.059-.977V2.77c0-.586-.473-.918-1.059-.918zM5.3 4.017c.167.099.19.276.012.366l-2.098.985c-.131.077-.304-.002-.302-.19V3.29c0-.203.18-.333.34-.245z" fill="#c4c4c4" paint-order="fill markers stroke"/></svg>
+<svg fill="currentColor" xmlns="http://www.w3.org/2000/svg" width="30" height="25" viewBox="0 0 7.937 6.615"><title>Subscriptions</title><path d="M2.373 0h3.191a.52.52 0 01.521.521H1.852A.52.52 0 012.373 0zm-.91.794h5.011c.371 0 .67.298.67.67v.123l-6.35-.016v-.108c0-.37.298-.67.67-.67zm-.405 1.058C.472 1.852 0 2.184 0 2.77v2.868c0 .586.472.977 1.058.977H6.88c.586 0 1.059-.39 1.059-.977V2.77c0-.586-.473-.918-1.059-.918zM5.3 4.017c.167.099.19.276.012.366l-2.098.985c-.131.077-.304-.002-.302-.19V3.29c0-.203.18-.333.34-.245z" paint-order="fill markers stroke"/></svg>

package.json

@@ -10,11 +10,11 @@
   "author": "",
   "license": "AGPL-3.0",
   "dependencies": {
-    "better-sqlite3": "^7.1.0",
+    "better-sqlite3": "^7.4.5",
     "cookie": "^0.4.1",
-    "denque": "^1.4.1",
+    "denque": "^1.5.1",
     "mixin-deep": "^2.0.1",
-    "node-fetch": "^2.6.0",
-    "pinski": "git+https://git.sr.ht/~cadence/nodejs-pinski#210be3cfacbd93d44e104698a29abd39494a6271"
+    "node-fetch": "^2.6.6",
+    "pinski": "git+https://git.sr.ht/~cadence/nodejs-pinski#9653807f309aee34c8c63ce4e6ee760cccbfdf0d"
   }
 }

pug/cant-think.pug

@@ -18,6 +18,7 @@ mixin leave(index, prefix="No more?", final)
         a(href="/search?q=cats+being+cute") [BLISS]
 
 block content
+  include includes/video-list-item
   main.cant-think-page
     - let src = constants.server_setup.cant_think_narration_url
     if src
@@ -71,3 +72,8 @@ block content
       p You know what you must do.
       p.ultimatum: a(href="#i-understand").border-look I know what I must do.
       a#i-understand
+      
+      p.the-end Well, looks like you reached the end of the content.#[br]You know what happens now.
+      h3 Recommended videos
+      +video_list_item("related-video", {videoId: "jKKCF_Bqtw4", title: "dopamine review", author: "Jreg", authorId: "UCGSGPehp0RWfca-kENgBJ9Q", viewCountText: "84,651 views", second__lengthText: "3:10"})
+      +video_list_item("related-video", {videoId: "gLYWLobR248", title: "I Watch My YouTube Videos At 2x Speed", author: "Jreg", authorId: "UCGSGPehp0RWfca-kENgBJ9Q", viewCountText: "125,625 views", second__lengthText: "2:24"})

pug/channel-error.pug

@@ -0,0 +1,27 @@
+extends includes/layout
+
+include includes/video-list-item
+include includes/subscribe-button
+
+block head
+  title= `${data.row ? data.row.name : "Deleted channel"} - CloudTube`
+  script(type="module" src=getStaticURL("html", "/static/js/channel.js"))
+
+block content
+  main.channel-page
+    if data.row
+      .channel-data
+        .info
+          - const iconURL = data.row.icon_url
+          if iconURL
+            .logo
+              img(src=iconURL alt="").thumbnail-image
+          .about
+            h1.name= data.row.name
+          +subscribe_button(data.ucid, subscribed, `/channel/${data.ucid}`).subscribe-button.base-border-look
+
+    .channel-error
+      div= data.message
+
+      if data.missing && subscribed
+        .you-should-unsubscribe To remove this channel from your subscriptions list, click Unsubscribe.

pug/includes/layout.pug

@@ -3,8 +3,21 @@ html
   head
     meta(charset="utf-8")
     meta(name="viewport" content="width=device-width, initial-scale=1")
-    link(rel="stylesheet" type="text/css" href=getStaticURL("sass", "/main.sass"))
+    - const theme = settings && ["dark", "light", "edgeless-light"][settings.theme] || "dark"
+    link(rel="stylesheet" type="text/css" href=getStaticURL("sass", `/${theme}.sass`))
     script(type="module" src=getStaticURL("html", "/static/js/focus.js"))
+    link(rel="apple-touch-icon" sizes="180x180" href="/static/images/apple-touch-icon.png")
+    link(rel="icon" type="image/png" sizes="32x32" href="/static/images/favicon-32x32.png")
+    link(rel="icon" type="image/png" sizes="16x16" href="/static/images/favicon-16x16.png")
+    link(rel="manifest" href="/site.webmanifest")
+    link(rel="mask-icon" href="/static/images/safari-pinned-tab.svg" color="#5bbad5")
+    link(rel="shortcut icon" href="/static/images/favicon.ico")
+    meta(name="apple-mobile-web-app-title" content="CloudTube")
+    meta(name="application-name" content="CloudTube")
+    meta(name="msapplication-TileColor" content="#2b5797")
+    meta(name="msapplication-config" content="/browserconfig.xml")
+    meta(name="theme-color" content="#36393f")
+  
     block head
 
   body.show-focus
@@ -13,15 +26,14 @@ html
     if showNav
       nav.main-nav
         .links
-          a(href="/").link.home CloudTube
+          if req && req.headers && "x-insecure" in req.headers
+            a(href="/").link.home CloudTube - Insecure
+          else
+            a(href="/").link.home CloudTube
           a(href="/subscriptions" title="Subscriptions").link.icon-link
-            svg(width=30 height=25)
-              image(href=getStaticURL("html", "/static/images/subscriptions.svg") alt="Subscriptions.").icon
-              title Subscriptions
+            != icons.get("subscriptions")
           a(href="/settings" title="Settings").link.icon-link
-            svg(width=25 height=25)
-              image(href=getStaticURL("html", "/static/images/settings.svg") alt="Settings.").icon
-              title Settings
+            != icons.get("settings")
         form(method="get" action="/search").search-form
           input(type="text" placeholder="Search" aria-label="Search a video" name="q" autocomplete="off" value=query).search
 

pug/includes/layout_embed.pug

@@ -0,0 +1,12 @@
+doctype html
+html
+  head
+    meta(charset="utf-8")
+    meta(name="viewport" content="width=device-width, initial-scale=1")
+    link(rel="stylesheet" type="text/css" href=getStaticURL("sass", "/main.sass"))
+    script(type="module" src=getStaticURL("html", "/static/js/focus.js"))
+    block head
+
+  body.show-focus
+    div
+      block content

pug/settings.pug

@@ -36,6 +36,16 @@ block content
     form(method="post" action="/settings")
       +fieldset("Settings")
 
+        +select({
+          id: "theme",
+          label: "Theme",
+          options: [
+            {value: "0", text: "Standard dark"},
+            {value: "1", text: "Standard light"},
+            {value: "2", text: "Edgeless light"}
+          ]
+        })
+
         +input({
           id: "instance",
           label: "Instance",

pug/subscriptions.pug

@@ -11,12 +11,24 @@ block content
     if hasSubscriptions
       section
         details.channels-details
-          summary #{channels.length} subscriptions
+          summary
+            | #{channels.length} subscriptions
+            if missingChannelCount === 1
+              = ` - ${missingChannelCount} channel is gone`
+            else if missingChannelCount > 1
+              = ` - ${missingChannelCount} channels are gone`
           .channels-list
             for channel in channels
               a(href=`/channel/${channel.ucid}`).channel-item
                 img(src=channel.icon_url width=512 height=512 alt="").thumbnail
-                span.name= channel.name
+                div
+                  div.name= channel.name
+                  if channel.missing
+                    div.missing-reason
+                      if channel.missing_reason
+                        = channel.missing_reason
+                      else
+                        | This channel appears to be deleted or terminated. Click to check it.
 
       if refreshed
         section
@@ -31,8 +43,8 @@ block content
 
       if settings.save_history
         input(type="checkbox" id="watched-videos-display")
-        .watched-videos-display-container
-          label(for="watched-videos-display").watched-videos-display-label Hide watched videos
+        .checkbox-hider__container
+          label(for="watched-videos-display").checkbox-hider__label Hide watched videos
 
       each video in videos
         +video_list_item("subscriptions-video", video, instanceOrigin, {showMarkWatched: settings.save_history && !video.watched})

pug/video.pug

@@ -21,6 +21,7 @@ block content
         noscript
           meta(http-equiv="refresh" content=`${video.lengthSeconds+5};url=/watch?v=${first.videoId}&continuous=1&session-watched=${sessionWatchedNext}`)
     .video-page(class={
+      "video-page--recommended-side": settings.recommended_mode === 0,
       "video-page--recommended-below": settings.recommended_mode === 1,
       "video-page--recommended-hidden": settings.recommended_mode === 2
     })
@@ -76,7 +77,7 @@ block content
               img(src="/static/images/search.svg" width=17 height=17 alt="").button-icon
               | Search
           //- button.border-look#share Share
-          a(href=`https://www.youtube.com/watch?v=${video.videoId}#cloudtube`).border-look YouTube
+          a(href=`https://yewtu.be/watch?v=${video.videoId}`).border-look YewTube
           a(href=`https://redirect.invidious.io/watch?v=${video.videoId}`).border-look Invidious
 
         .description#description!= video.descriptionHtml

pug/video_embed.pug

@@ -0,0 +1,58 @@
+extends includes/layout_embed
+
+include includes/video-list-item
+include includes/subscribe-button
+
+block head
+  unless error
+    title= `${video.title} (embedded) - CloudTube`
+  else
+    title Error - CloudTube
+  script(type="module" src=getStaticURL("html", "/static/js/player.js"))
+  script const data = !{JSON.stringify({...video, continuous})}
+
+block content
+  unless error
+    .video-embed-page(class={
+      "video-page--recommended-below": settings.recommended_mode === 1,
+      "video-page--recommended-hidden": settings.recommended_mode === 2
+    })
+      main.embed-video-section
+        - const format = formats[0]
+        if format
+          video(controls preload="auto" width=format.second__width height=format.second__height data-itag=format.itag autoplay=continuous||autoplay)#video.video
+            source(src=format.url type=format.type)
+            each t in video.captions
+              track(label=t.label kind="subtitles" srclang=t.languageCode src=t.url)
+            // fallback: flash player
+            - let flashvars = new URLSearchParams({skin: "/static/flash/skin.swf", video: format.url})
+            embed(type="application/x-shockwave-flash" src="/static/flash/player.swf" id="f4Player" width=1280 height=720 flashvars=flashvars.toString() allowscriptaccess="always" allowfullscreen="true" bgcolor="#000000")
+        else
+          video(src="")#video.video
+          .stream-notice The server provided no playback streams.
+
+        #current-time-container
+        #end-cards-container
+
+        audio(preload="auto")#audio
+        #live-event-notice
+        #audio-loading-display
+
+        .button-container
+          select(aria-label="Quality" autocomplete="off").border-look#quality-select
+            each f in formats
+              option(value=f.itag)= f.cloudtube__label
+          //-
+            a(href="/subscriptions").border-look
+              img(src="/static/images/search.svg" width=17 height=17 alt="").button-icon
+              | Search
+          //- button.border-look#share Share
+          a(target="_blank", href=`/watch?v=${video.videoId}`).border-look CloudTube (not embedded)
+          a(target="_blank", href=`https://yewtu.be/watch?v=${video.videoId}`).border-look YewTube
+          a(target="_blank", href=`https://redirect.invidious.io/watch?v=${video.videoId}`).border-look Invidious
+  else
+    //- error
+    main.video-error-page
+      h2 Error
+      != message
+      p: a(href=`https://www.youtube.com/watch?v=${video.videoId}#cloudtube`) Watch on YouTube →

sass/dark.sass

@@ -0,0 +1,9 @@
+@use "themes/dark" as *
+@use "includes/main" with ($_theme: $theme)
+
+@use "theme-modules/edgeless" with ($_theme: $theme)
+
+// navigation shadow
+.main-nav
+  position: relative // needed for box shadow to overlap related videos section
+  box-shadow: 0px 0px 20px 5px rgba(0, 0, 0, 0.1)

sass/edgeless-light.sass

@@ -0,0 +1,4 @@
+@use "themes/edgeless-light" as *
+@use "includes/main" with ($_theme: $theme)
+
+@use "theme-modules/edgeless" with ($_theme: $theme)

sass/includes/_base.sass

@@ -1,8 +1,10 @@
-@use "colors.sass" as c
+$_theme: () !default
+
+@use "sass:map"
 
 body
-  background-color: c.$bg-dark
-  color: c.$fg-main
+  background-color: map.get($_theme, "bg-2")
+  color: map.get($_theme, "fg-main")
   font-family: "Bariol", sans-serif
   font-size: 18px
   margin: 0
@@ -13,13 +15,13 @@ body
   flex-direction: column
 
 a
-  color: c.$link
+  color: map.get($_theme, "link")
 
 pre, code
   font-size: 0.88em
 
 code
-  background: c.$bg-darker
+  background: map.get($_theme, "bg-1")
   padding: 3px 5px
   border-radius: 4px
 
@@ -32,7 +34,7 @@ button
   cursor: pointer
 
 ::placeholder
-  color: #c4c4c4
+  color: map.get($_theme, "placeholder")
   opacity: 1
 
 // focus section
@@ -48,19 +50,20 @@ button
 
 select:-moz-focusring
   color: transparent
-  text-shadow: 0 0 0 c.$fg-bright
+  text-shadow: 0 0 0 map.get($_theme, "fg-bright")
 
 body.show-focus
   a, select, button, input, video, summary
     &:focus
-      outline: 2px dotted #ddd
+      outline: 2px dotted map.get($_theme, "fg-main")
 
 video
   background-color: black
 
 details
-  background-color: c.$bg-accent-x
+  background-color: map.get($_theme, "bg-3")
   padding: 12px
+  border: 1px solid map.get($_theme, "edge-grey")
   border-radius: 8px
 
   summary
@@ -68,20 +71,22 @@ details
     line-height: 1
     margin-bottom: 0
     user-select: none
-    color: c.$fg-main
+    color: map.get($_theme, "fg-main")
 
   &[open] summary
-    margin-bottom: 16px
+    padding-bottom: 12px
+    border-bottom: 1px solid map.get($_theme, "edge-grey")
+    margin-bottom: 8px
 
 table
-  background-color: c.$bg-darker
+  background-color: map.get($_theme, "bg-1")
 
 table, td, th
-  border: 1px solid c.$edge-grey
+  border: 1px solid map.get($_theme, "edge-grey")
   border-collapse: collapse
 
 td, th
   padding: 4px 8px
 
 thead, tr:nth-child(even)
- background-color: c.$bg-darkest
+ background-color: map.get($_theme, "bg-0")

sass/includes/_buttons.sass

@@ -1,10 +1,12 @@
+$_theme: () !default
+
 @use "sass:selector"
-@use "colors.sass" as c
+@use "sass:map"
 
 @mixin button-base
   -webkit-appearance: none
   -moz-appearance: none
-  color: c.$fg-bright
+  color: map.get($_theme, "fg-bright")
   border: none
   border-radius: 4px
   padding: 8px
@@ -14,7 +16,7 @@
 
   @at-root #{selector.unify(&, "select")}
     padding: 8px 27px 8px 8px
-    background: url(/static/images/arrow-down-wide.svg) right 53% no-repeat c.$bg-accent-x
+    background: map.get($_theme, "image-dropdown") right 53% no-repeat map.get($_theme, "bg-4")
 
   @at-root #{selector.unify(&, "a")}
     padding: 7px 8px
@@ -31,12 +33,12 @@
 @mixin button-bg
   @include button-base
 
-  background-color: c.$bg-accent-x
+  background-color: map.get($_theme, "bg-4")
 
 @mixin border-button
   @include button-bg
 
-  border: 1px solid c.$edge-grey
+  border: 1px solid map.get($_theme, "edge-grey")
 
 @mixin button-size
   margin: 4px
@@ -44,10 +46,10 @@
 
 @mixin button-hover
   &:hover
-    background-color: c.$bg-accent
+    background-color: map.get($_theme, "bg-3")
 
   &:active
-    background-color: c.$bg-dark
+    background-color: map.get($_theme, "bg-2")
 
 .base-border-look
   @include border-button
@@ -62,13 +64,13 @@
   @include button-size
   -webkit-appearance: none
   -moz-appearance: none
-  color: c.$fg-bright
+  color: map.get($_theme, "fg-bright")
   text-decoration: none
   line-height: 1.25
   margin: 0
   padding: 8px 20px
-  background: c.$bg-accent
-  border: solid c.$bg-darker
+  background: map.get($_theme, "bg-3")
+  border: solid map.get($_theme, "edge-grey")
   border-width: 1px 0px 0px
   text-align: left
 
@@ -76,7 +78,7 @@
     border-width: 1px 0px 1px
 
   &:hover
-    background: c.$bg-accent-x
+    background: map.get($_theme, "bg-4")
 
   &:active
-    background: c.$bg-darker
+    background: map.get($_theme, "bg-1")

sass/includes/_cant-think-page.sass

@@ -1,5 +1,7 @@
+$_theme: () !default
+
 @use "sass:list"
-@use "colors.sass" as c
+@use "sass:map"
 
 .cant-think-page
   .main-nav
@@ -9,13 +11,14 @@
     text-align: left
     max-width: 572px
     padding-top: 40px
+    margin-bottom: 12vh
     border-radius: 0px 0px 16px 16px
     box-sizing: border-box
 
   .page-narration
-    background-color: c.$bg-accent
-    border: 1px solid #aaa
-    color: #fff
+    background-color: map.get($_theme, "bg-3")
+    border: 1px solid map.get($_theme, "edge-grey")
+    color: map.get($_theme, "fg-bright")
     border-radius: 0
     padding: 16px
     margin: 40px auto 60px
@@ -28,7 +31,7 @@
 
   .leave
     margin: 26px 32px !important
-    color: #aaa
+    color: map.get($_theme, "fg-dim")
 
     $sizes: 14px 16px 21px 30px 72px
     @each $size in $sizes
@@ -37,7 +40,7 @@
 
     &.leave__final
       font-weight: bold
-      color: #f2f2f2
+      color: map.get($_theme, "fg-bright")
       text-align: center
 
       .leave__actions
@@ -54,6 +57,12 @@
   .ultimatum
     margin-top: 32px !important
 
+  .the-end
+    margin: 120px 0px 1em !important
+
+  .thumbnail__more
+    display: none
+
   #i-understand
     display: flex
     height: 20px
@@ -65,6 +74,7 @@
 
     &:target
       position: fixed
+      z-index: 1
       top: 0
       bottom: 0
       left: 0

sass/includes/_channel-page.sass

@@ -1,6 +1,8 @@
-@use "colors.sass" as c
-@use "video-list-item.sass" as *
-@use "_dimensions.sass" as dimensions
+$_theme: () !default
+
+@use "sass:map"
+@use "_dimensions" as dimensions
+@use "video-list-item" as *
 
 .channel-page
   padding: 40px 20px 20px
@@ -17,7 +19,7 @@
   align-self: flex-start
 
 .channel-data
-  background-color: c.$bg-darker
+  background-color: map.get($_theme, "bg-1")
   padding: 24px
   margin: 12px 0px 24px
   border-radius: 8px
@@ -44,11 +46,11 @@
       .name
         font-size: 30px
         font-weight: normal
-        color: c.$fg-bright
+        color: map.get($_theme, "fg-bright")
         margin: 0
 
       .subscribers
-        color: c.$fg-main
+        color: map.get($_theme, "fg-main")
         font-size: 18px
 
     .subscribe-form
@@ -61,7 +63,8 @@
         line-height: 1
         border-radius: 8px
         font-size: 22px
-        background-color: c.$power-deep
+        background-color: map.get($_theme, "power-deep")
+        color: map.get($_theme, "power-fg")
         border: none
 
   .description
@@ -71,6 +74,19 @@
 .channel-video
   @include channel-video
 
+.channel-error
+  background-color: map.get($_theme, "bg-1")
+  padding: 24px
+  margin: 12px 0px 24px
+  border-radius: 8px
+  border: 1px solid map.get($_theme, "edge-grey")
+  font-size: 20px
+  color: map.get($_theme, "fg-warning")
+
+.you-should-unsubscribe
+  margin-top: 20px
+  color: map.get($_theme, "fg-main")
+
 .about-description // class provided by youtube
   pre
     font-size: inherit

sass/includes/_filters-page.sass

@@ -1,10 +1,12 @@
-@use "colors.sass" as c
+$_theme: () !default
+
+@use "sass:map"
 
 @mixin filter-notice
   margin-top: 24px
   padding: 12px
   border-radius: 8px
-  background-color: c.$bg-darker
+  background-color: map.get($_theme, "bg-1")
   white-space: pre-line
 
 .filters-page
@@ -20,23 +22,23 @@
 
   .filter-confirmation-notice
     @include filter-notice
-    color: c.$fg-warning
+    color: map.get($_theme, "fg-warning")
 
   .filter-compile-error
     @include filter-notice
 
     &__header
-      color: c.$fg-warning
+      color: map.get($_theme, "fg-warning")
 
     &__trace
-      background-color: c.$bg-darkest
+      background-color: map.get($_theme, "bg-0")
       padding: 6px
 
   .save-filter
     margin-top: 12px
 
     .border-look
-      background-color: c.$bg-darker
+      background-color: map.get($_theme, "bg-1")
       font-size: 22px
       padding: 7px 16px 8px
       font-size: 24px
@@ -48,17 +50,17 @@
   .filter
     display: flex
     padding: 5px 0
-    border-top: 1px solid c.$edge-grey
+    border-top: 1px solid map.get($_theme, "edge-grey")
 
     &:last-child
-      border-bottom: 1px solid c.$edge-grey
+      border-bottom: 1px solid map.get($_theme, "edge-grey")
 
     &__details
       flex: 1
 
     &__type
       font-size: 15px
-      color: c.$fg-dim
+      color: map.get($_theme, "fg-dim")
 
     &__remove
       flex-shrink: 0

sass/includes/_footer.sass

@@ -1,4 +1,6 @@
-@use "./colors.sass" as c
+$_theme: () !default
+
+@use "sass:map"
 
 .footer__container
   flex: 1
@@ -10,9 +12,10 @@
   display: flex
   flex-direction: column
   align-items: center
-  background-color: c.$bg-darkest
+  background-color: map.get($_theme, "bg-dim")
   margin: 40px 0 0
   padding: 10px 10px 30px
+  border-top: 1px solid map.get($_theme, "edge-grey")
 
 .footer__cols
   display: flex

sass/includes/_forms.sass

@@ -1,7 +1,9 @@
-@use "colors.sass" as c
+$_theme: () !default
+
+@use "sass:map"
 
 @mixin disabled
-  background-color: c.$bg-dark
+  background-color: map.get($_theme, "bg-2")
   color: #808080
 
 fieldset
@@ -20,7 +22,7 @@ fieldset
     font-size: 28px
     font-weight: bold
     padding: 0
-    border-bottom: 1px solid #333
+    border-bottom: 1px solid map.get($_theme, "edge-grey") // TODO: originally contrasted more
     line-height: 1.56
 
     @media screen and (max-width: 400px)
@@ -36,7 +38,7 @@ fieldset
   position: relative
   padding-bottom: 5px
   margin-bottom: 5px
-  border-bottom: 1px solid #999
+  border-bottom: 1px solid map.get($_theme, "edge-grey")
 
   @media screen and (max-width: 400px)
     flex-direction: column
@@ -52,7 +54,7 @@ fieldset
   &__label
     grid-area: label
     padding: 8px 8px 8px 0px
-    color: #fff
+    color: map.get($_theme, "fg-main")
 
   &__input
     grid-area: input
@@ -63,7 +65,7 @@ fieldset
     white-space: pre-line
     margin: 12px 0px 18px
     font-size: 16px
-    color: #ccc
+    color: map.get($_theme, "fg-dim")
     line-height: 1.2
 
 //
@@ -79,7 +81,7 @@ fieldset
       width: 16px
       height: 16px
       padding: 0px
-      border: 1px solid #666
+      border: 1px solid map.get($_theme, "edge-grey")
       border-radius: 3px
       margin-left: 8px
       position: relative
@@ -101,6 +103,20 @@ fieldset
         @include acts-like-button
         cursor: pointer
 
+.checkbox-hider__container
+  position: relative
+  display: grid // why does the default not work???
+  top: -42px
+  background: map.get($_theme, "bg-3")
+  line-height: 1
+  border: 1px solid map.get($_theme, "edge-grey")
+  border-radius: 8px
+  margin-bottom: -18px
+
+.checkbox-hider__label
+  padding: 12px 0px 12px 32px
+  cursor: pointer
+
 @mixin checkbox-hider($base)
   ##{$base}
     position: relative
@@ -110,18 +126,17 @@ fieldset
     height: 42px
     margin: 0
 
-  .#{$base}-container
-    position: relative
-    display: grid // why does the default not work???
-    top: -42px
-    background: c.$bg-accent-x
-    line-height: 1
-    border-radius: 8px
-    margin-bottom: -18px
+  /*
+    automatically add these styles too
+    this means that components based off this can either add the .checkbox-hider__container class, or they can add the .base-name-container class,
+    depending on which one is more reasonable in the moment
+    for example, .delete-confirm-container takes advantage of the @extend here.
 
-    .#{$base}-label
-      padding: 12px 0px 12px 32px
-      cursor: pointer
+  .#{$base}-container
+    @extend .checkbox-hider__container
+
+  .#{$base}-label
+    @extend .checkbox-hider__label
 
 @mixin single-button-form
   display: inline-block

sass/includes/_home-page.sass

@@ -1,4 +1,6 @@
-@use "colors.sass" as c
+$_theme: () !default
+
+@use "sass:map"
 
 .home-page
   padding: 40px
@@ -18,8 +20,8 @@
   padding: 16px
   border-radius: 4px
   font-size: 20px
-  background-color: c.$bg-darker
-  color: c.$fg-main
+  background-color: map.get($_theme, "bg-1")
+  color: map.get($_theme, "fg-main")
 
   p
     margin: 0 32px

sass/includes/_licenses-page.sass

@@ -1,3 +1,5 @@
+$_theme: () !default
+
 .js-licenses-page
   max-width: 800px
   margin: 0 auto

sass/includes/_main.sass

@@ -0,0 +1,33 @@
+$_theme: () !default
+
+@use "sass:selector"
+
+// preload second-level includes with the theme (there will be conflicts due to reconfiguration they are loaded individually)
+// this isn't _exactly_ what @forward is supposed to be used for, but it's the best option here
+@forward "video-list-item" show _ with ($_theme: $_theme)
+@forward "forms" show _ with ($_theme: $_theme)
+@forward "buttons" show _ with ($_theme: $_theme)
+
+@use "base" with ($_theme: $_theme)
+@use "video-page" with ($_theme: $_theme)
+@use "video-embed" with ($_theme: $_theme)
+@use "search-page" with ($_theme: $_theme)
+@use "home-page" with ($_theme: $_theme)
+@use "channel-page" with ($_theme: $_theme)
+@use "subscriptions-page" with ($_theme: $_theme)
+@use "settings-page" with ($_theme: $_theme)
+@use "cant-think-page" with ($_theme: $_theme)
+@use "privacy-page" with ($_theme: $_theme)
+@use "licenses-page" with ($_theme: $_theme)
+@use "filters-page" with ($_theme: $_theme)
+@use "takedown-page" with ($_theme: $_theme)
+@use "nav" with ($_theme: $_theme)
+@use "footer" with ($_theme: $_theme)
+
+@font-face
+  font-family: "Bariol"
+  src: url(/static/fonts/bariol.woff?statichash=1)
+
+.button-container
+  display: flex
+  flex-wrap: wrap

sass/includes/_nav.sass

@@ -1,12 +1,14 @@
-@use "colors.sass" as c
-@use "buttons.sass" as *
-@use "_dimensions.sass" as dimensions
+$_theme: () !default
+
+@use "sass:map"
+@use "buttons" as *
+@use "_dimensions" as dimensions
 
 .main-nav
-  background-color: c.$bg-accent
+  background-color: map.get($_theme, "bg-nav")
   display: flex
   padding: 8px
-  box-shadow: 0px 0px 20px 5px rgba(0, 0, 0, 0.1)
+  border-bottom: 1px solid map.get($_theme, "edge-grey")
 
   +dimensions.thin
     display: block
@@ -30,10 +32,16 @@
       font-weight: bold
 
     &, &:visited
-      color: #fff
+      color: map.get($_theme, "fg-bright")
 
     &:focus, &:hover
-      background-color: c.$bg-accent-x
+      background-color: map.get($_theme, "bg-4")
+
+    &.icon-link
+      color: map.get($_theme, "fg-dim")
+
+      &:hover, &:focus
+        color: map.get($_theme, "fg-bright")
 
   .search-form
     display: flex
@@ -44,8 +52,7 @@
       @include button-bg
       padding: 10px
       flex: 1
-      margin: 1px
+      border: 1px solid map.get($_theme, "bg-nav")
 
       &:hover, &:focus
-        border: 1px solid c.$edge-grey
-        margin: 0px
+        border-color: map.get($_theme, "edge-grey")

sass/includes/_privacy-page.sass

@@ -1,3 +1,5 @@
+$_theme: () !default
+
 .privacy-page
   max-width: 600px
   margin: 0 auto

sass/includes/_search-page.sass

@@ -1,5 +1,7 @@
-@use "video-list-item.sass" as *
-@use "colors.sass" as c
+$_theme: () !default
+
+@use "sass:map"
+@use "video-list-item" as *
 
 .search-page
   padding: 40px 20px 20px

sass/includes/_settings-page.sass

@@ -1,5 +1,7 @@
-@use "forms.sass" as forms
-@use "colors.sass" as c
+$_theme: () !default
+
+@use "sass:map"
+@use "forms" as forms
 
 .settings-page
   padding: 40px 20px 20px
@@ -19,8 +21,9 @@
 .more-settings
   margin-top: 24px
   padding: 12px
+  border: 1px solid map.get($_theme, "edge-grey")
   border-radius: 8px
-  background-color: c.$bg-accent-x
+  background-color: map.get($_theme, "bg-3")
 
   &__list
     margin: 0
@@ -34,7 +37,7 @@
   margin-top: 24px
 
   .delete-confirm-container
-    background: c.$bg-darker
+    background: map.get($_theme, "bg-1")
     margin-bottom: -36px
 
 @include forms.checkbox-hider("delete-confirm")

sass/includes/_subscriptions-page.sass

@@ -1,6 +1,8 @@
-@use "colors.sass" as c
-@use "video-list-item.sass" as *
-@use "forms.sass" as forms
+$_theme: () !default
+
+@use "sass:map"
+@use "forms" as forms
+@use "video-list-item" as *
 
 .subscriptions-page
   padding: 40px 20px 20px
@@ -33,7 +35,11 @@
 
   .name
     font-size: 22px
-    color: c.$fg-main
+    color: map.get($_theme, "fg-main")
+
+  .missing-reason
+    font-size: 16px
+    color: map.get($_theme, "fg-warning")
 
 @include forms.checkbox-hider("watched-videos-display")
 

sass/includes/_takedown-page.sass

@@ -0,0 +1,16 @@
+$_theme: () !default
+
+@use "sass:map"
+
+.takedown-page
+  max-width: 700px
+  margin: 0 auto
+
+  .new-section
+    margin-top: 200px
+
+  .important-section
+    padding: 4px 20px
+    border: 1px solid map.get($_theme, "edge-grey")
+    color: map.get($_theme, "fg-bright")
+    background-color: map.get($_theme, "bg-1")

sass/includes/_video-embed.sass

@@ -0,0 +1,22 @@
+$_theme: () !default
+
+@use "sass:map"
+@use "video-list-item" as *
+
+.video-embed-page
+  display: block
+
+.embed-video-section
+  width: 100%
+  height: 100vh
+  display: flex
+  flex-direction: column
+
+  .video
+    flex-grow: 1
+    display: block
+    width: 100%
+
+  .stream-notice
+    background: map.get($_theme, "bg-0")
+    padding: 4px

sass/includes/_video-list-item.sass

@@ -1,5 +1,7 @@
-@use "colors.sass" as c
-@use "_dimensions.sass" as dimensions
+$_theme: () !default
+
+@use "sass:map"
+@use "_dimensions" as dimensions
 
 // navigator hacks
 .thumbnail > .thumbnail__options-container
@@ -30,6 +32,7 @@
   &__show-more
     display: block
     height: $more-size
+    color: #fff
     line-height: 16px
     font-size: 25px
     text-align: center
@@ -52,7 +55,7 @@
   &__options-list
     pointer-events: auto
     display: grid
-    background-color: c.$bg-accent
+    background-color: map.get($_theme, "bg-3")
     padding: 8px 0px
     border-radius: 8px
     box-shadow: 0 2px 6px 2px #000
@@ -67,7 +70,7 @@
       right: 0
       transform: translate(-6px, -1px) rotate(-45deg)
       clip-path: polygon(-5% -20%, 120% -20%, 120% 125%)
-      background-color: c.$bg-accent
+      background-color: map.get($_theme, "bg-3")
       box-shadow: 0px 0px 4px 0px #000
       pointer-events: none
 
@@ -80,7 +83,7 @@
   margin-bottom: 12px
 
   @at-root .video-list-item--watched#{&}
-    background: c.$bg-darker
+    background: map.get($_theme, "bg-dim")
     padding: 4px 4px 0px
     margin: -4px -4px 8px
 
@@ -93,7 +96,7 @@
   .thumbnail
     position: relative
     display: flex
-    background: c.$bg-darkest
+    background: map.get($_theme, "bg-0")
 
     &__link
       font-size: 0 // remove whitespace around the image
@@ -106,7 +109,7 @@
     position: absolute
     bottom: 3px
     right: 3px
-    color: c.$fg-bright
+    color: #fff
     font-size: 14px
     background: rgba(20, 20, 20, 0.85)
     line-height: 1
@@ -119,20 +122,20 @@
     line-height: 1.2
 
   .title-link
-    color: c.$fg-main
+    color: map.get($_theme, "fg-main")
     text-decoration: none
 
   .author-line
     margin-top: 4px
     font-size: 15px
-    color: c.$fg-dim
+    color: map.get($_theme, "fg-dim")
 
   .author
-    color: c.$fg-dim
+    color: map.get($_theme, "fg-dim")
     text-decoration: none
 
     &:hover, &:active
-      color: c.$fg-bright
+      color: map.get($_theme, "fg-bright")
       text-decoration: underline
 
 @mixin recommendation-item
@@ -176,15 +179,15 @@
 
     .author-line
       font-size: 15px
-      color: c.$fg-main
+      color: map.get($_theme, "fg-main")
 
     .author
-      color: c.$fg-main
+      color: map.get($_theme, "fg-main")
 
     .description
       margin-top: 16px
       font-size: 15px
-      color: c.$fg-dim
+      color: map.get($_theme, "fg-dim")
 
   +dimensions.thin
     .description
@@ -195,7 +198,7 @@
 
   .description b
     font-weight: normal
-    color: c.$fg-main
+    color: map.get($_theme, "fg-main")
 
 @mixin channel-video
   @include large-item

sass/includes/_video-page.sass

@@ -1,11 +1,11 @@
-@use "colors.sass" as c
-@use "video-list-item.sass" as *
+$_theme: () !default
+
+@use "sass:map"
+@use "video-list-item" as *
 
 .video-page
   display: grid
   grid-auto-flow: row
-  padding: 20px
-  grid-gap: 16px
 
   @media screen and (min-width: 1000px)
     grid-template-columns: 1fr 400px
@@ -13,10 +13,25 @@
   &--recommended-below, &--recommended-hidden
     grid-template-columns: none
 
-  &--recommended-hidden .related-videos
-    display: none
+  &--recommended-side
+    .related-videos
+      border-left: 1px solid map.get($_theme, "edge-grey")
+      padding-left: 12px
+      padding-right: 20px
+      background-color: map.get($_theme, "bg-4")
+      padding-top: 12px
+
+  &--recommended-below
+    .related-videos
+      padding: 20px
+
+  &--recommended-hidden
+    .related-videos
+      display: none
 
 .main-video-section
+  padding: 20px
+
   .video-container
     text-align: center
 
@@ -27,7 +42,7 @@
       max-height: 80vh
 
   .stream-notice
-    background: c.$bg-darkest
+    background: map.get($_theme, "bg-0")
     padding: 4px
 
   .info
@@ -45,15 +60,15 @@
         margin: 0px 0px 4px
         font-size: 30px
         font-weight: normal
-        color: c.$fg-bright
+        color: map.get($_theme, "fg-bright")
         word-break: break-word
 
       .author-link
-        color: c.$fg-main
+        color: map.get($_theme, "fg-main")
         text-decoration: none
 
         &:hover, &:active
-          color: c.$fg-bright
+          color: map.get($_theme, "fg-bright")
           text-decoration: underline
 
     .info-secondary
@@ -75,7 +90,7 @@
     margin: 16px 4px
     padding: 12px
     border-radius: 4px
-    background-color: c.$bg-darkest
+    background-color: map.get($_theme, "bg-0")
 
     &__description
       margin-left: 12px
@@ -85,7 +100,7 @@
 
     &__script-warning
       font-size: 15px
-      color: c.$fg-warning
+      color: map.get($_theme, "fg-warning")
 
     &__buttons
       display: flex
@@ -97,12 +112,12 @@
     line-height: 1.4
     word-break: break-word
     margin: 16px 4px 4px 4px
-    background-color: c.$bg-accent-area
+    background-color: map.get($_theme, "bg-5")
     padding: 12px
     border-radius: 4px
 
-    --regular-background: #{c.$bg-accent-area}
-    --highlight-background: #{c.$bg-darker}
+    --regular-background: #{map.get($_theme, "bg-5")}
+    --highlight-background: #{map.get($_theme, "bg-1")}
 
 .subscribe-form
   display: inline-block

sass/includes/colors.sass

@@ -1,17 +0,0 @@
-$bg-darkest: #202123
-$bg-darker: #303336
-$bg-dark: #36393f
-$bg-accent: #4f5359
-$bg-accent-x: #3f4247
-$bg-accent-area: #44474b
-
-$fg-bright: #fff
-$fg-main: #ddd
-$fg-dim: #bbb
-$fg-warning: #fdca6d
-
-$edge-grey: #a0a0a0
-
-$link: #8ac2f9
-
-$power-deep: #c62727

sass/includes/takedown-page.sass

@@ -1,14 +0,0 @@
-@use "colors.sass" as c
-
-.takedown-page
-  max-width: 700px
-  margin: 0 auto
-
-  .new-section
-    margin-top: 200px
-
-  .important-section
-    padding: 4px 20px
-    border: 1px solid c.$edge-grey
-    color: c.$fg-bright
-    background-color: c.$bg-darker

sass/light.sass

@@ -0,0 +1,2 @@
+@use "themes/light" as *
+@use "includes/main" with ($_theme: $theme)

sass/main.sass

@@ -1,30 +0,0 @@
-@use "includes/colors.sass" as c
-
-@use "includes/base.sass"
-@use "sass:selector"
-@use "includes/video-page.sass"
-@use "includes/search-page.sass"
-@use "includes/home-page.sass"
-@use "includes/channel-page.sass"
-@use "includes/subscriptions-page.sass"
-@use "includes/settings-page.sass"
-@use "includes/cant-think-page.sass"
-@use "includes/privacy-page.sass"
-@use "includes/licenses-page.sass"
-@use "includes/filters-page.sass"
-@use "includes/takedown-page.sass"
-@use "includes/forms.sass"
-@use "includes/nav.sass"
-@use "includes/footer.sass"
-
-@font-face
-  font-family: "Bariol"
-  src: url(/static/fonts/bariol.woff?statichash=1)
-
-.icon-link:hover, .icon-link:focus
-  .icon
-    filter: brightness(2)
-
-.button-container
-  display: flex
-  flex-wrap: wrap

sass/theme-modules/_edgeless.sass

@@ -0,0 +1,27 @@
+$_theme: () !default
+
+@use "sass:map"
+
+// remove separating edges
+.main-nav, .footer__center, .video-page--recommended-side .related-videos
+  border: none
+
+// no background change to recommended videos sidebar
+.video-page--recommended-side .related-videos
+  background-color: map.get($_theme, "bg-2")
+
+// navigation shadow
+.main-nav
+  position: relative // needed for box shadow to overlap related videos section
+  box-shadow: 0px 0px 20px 5px rgba(0, 0, 0, 0.1)
+
+// thumbnail dropdown menu dividers
+.menu-look
+  border-color: map.get($_theme, "bg-0")
+
+// details areas
+details, .checkbox-hider__container, .more-settings
+  border: none
+details[open] summary
+  border: none
+  margin-bottom: 4px

sass/themes/_dark.scss

@@ -0,0 +1,38 @@
+// Defined in scss file instead of sass because indented syntax does not have multiline maps
+// https://github.com/sass/sass/issues/216
+
+@use "sass:map";
+
+// This section is for colour shades
+$theme: (
+  // darker
+  "bg-0": #252628,
+  "bg-1": #303336,
+  // regular
+  "bg-2": #36393f,
+  // lighter
+  "bg-3": #3f4247, // slightly
+  "bg-4": #44474b, // noticably
+  "bg-5": #4f5359, // brightly
+
+  "fg-bright": #fff,
+  "fg-main": #ddd,
+  "fg-dim": #bbb,
+  "fg-warning": #fdca6d,
+
+  "edge-grey": #a0a0a0,
+  "placeholder": #c4c4c4,
+
+  "link": #8ac2f9,
+
+  "power-deep": #c62727,
+  "power-fg": "#fff",
+
+  "image-dropdown": url(/static/images/arrow-down-wide-dark.svg)
+);
+
+// This section is for colour meanings
+$theme: map.merge($theme, (
+  "bg-dim": map.get($theme, "bg-0"),
+  "bg-nav": map.get($theme, "bg-5"),
+));

sass/themes/_edgeless-light.scss

@@ -0,0 +1,8 @@
+// extend regular light theme to change a couple of shades
+@use "light";
+@use "sass:map";
+
+// this section is for colour meanings
+$theme: map.merge(light.$theme, (
+  "edge-grey": #c0c0c0,
+));

sass/themes/_light.scss

@@ -0,0 +1,38 @@
+// Defined in scss file instead of sass because indented syntax does not have multiline maps
+// https://github.com/sass/sass/issues/216
+
+@use "sass:map";
+
+// this section is for colour shades
+$theme: (
+  // lighter
+  "bg-0": #fff,
+  "bg-1": #fff,
+  // regular
+  "bg-2": #f2f2f2,
+  // darker
+  "bg-3": #e8e8e8, // slightly
+  "bg-4": #dadada, // noticably
+  "bg-5": #d0d0d0, // brightly
+
+  "fg-bright": #000,
+  "fg-main": #202020,
+  "fg-dim": #454545,
+  "fg-warning": #ce8600,
+
+  "edge-grey": #909090,
+  "placeholder": #636363,
+
+  "link": #0b51d4,
+
+  "power-deep": #c62727,
+  "power-fg": #fff,
+
+  "image-dropdown": url(/static/images/arrow-down-wide-light.svg)
+);
+
+// this section is for colour meanings
+$theme: map.merge($theme, (
+  "bg-dim": map.get($theme, "bg-4"),
+  "bg-nav": map.get($theme, "bg-0")
+));

server.js

@@ -1,9 +1,11 @@
 const {Pinski} = require("pinski")
 const {setInstance} = require("pinski/plugins")
 const constants = require("./utils/constants")
+const iconLoader = require("./utils/icon-loader").icons
 
 ;(async () => {
 	await require("./utils/upgradedb")()
+	const icons = await iconLoader
 
 	const server = new Pinski({
 		port: 10412,
@@ -13,19 +15,19 @@ const constants = require("./utils/constants")
 
 	setInstance(server)
 	server.pugDefaultLocals.constants = constants
+	server.pugDefaultLocals.icons = icons
 
 	server.muteLogsStartingWith("/vi/")
 	server.muteLogsStartingWith("/favicon")
 	server.muteLogsStartingWith("/static")
 
-	server.addSassDir("sass", ["sass/includes"])
-	server.addRoute("/static/css/main.css", "sass/main.sass", "sass")
+	server.addSassDir("sass", ["sass/includes", "sass/themes", "sass/theme-modules"])
+	server.addRoute("/static/css/dark.css", "sass/dark.sass", "sass")
+	server.addRoute("/static/css/light.css", "sass/light.sass", "sass")
+	server.addRoute("/static/css/edgeless-light.css", "sass/edgeless-light.sass", "sass")
 
 	server.addPugDir("pug", ["pug/includes"])
 	server.addPugDir("pug/errors")
-	server.addRoute("/cant-think", "pug/cant-think.pug", "pug")
-	server.addRoute("/privacy", "pug/privacy.pug", "pug")
-	server.addRoute("/licenses", "pug/licenses.pug", "pug")
 
 	server.addStaticHashTableDir("html/static/js")
 	server.addStaticHashTableDir("html/static/js/elemjs")

utils/constants.js

@@ -9,6 +9,10 @@ let constants = {
 			type: "string",
 			default: "http://localhost:3000"
 		},
+		theme: {
+			type: "integer",
+			default: 0
+		},
 		save_history: {
 			type: "boolean",
 			default: false
@@ -46,6 +50,7 @@ let constants = {
 		csrf_time: 4*60*60*1000,
 		seen_token_subscriptions_eligible: 40*60*60*1000,
 		subscriptions_refresh_loop_min: 5*60*1000,
+		subscriptions_refesh_fake_not_found_cooldown: 10*60*1000,
 	},
 
 	// Pattern matching.

utils/getuser.js

@@ -54,7 +54,7 @@ class User {
 
 	getSubscriptions() {
 		if (this.token) {
-			return db.prepare("SELECT ucid FROM Subscriptions WHERE token = ? AND channel_missing = 0").pluck().all(this.token)
+			return db.prepare("SELECT ucid FROM Subscriptions WHERE token = ?").pluck().all(this.token)
 		} else {
 			return []
 		}
@@ -62,7 +62,7 @@ class User {
 
 	isSubscribed(ucid) {
 		if (this.token) {
-			return !!db.prepare("SELECT * FROM Subscriptions WHERE token = ? AND ucid = ? AND channel_missing = 0").get([this.token, ucid])
+			return !!db.prepare("SELECT * FROM Subscriptions WHERE token = ? AND ucid = ?").get([this.token, ucid])
 		} else {
 			return false
 		}

utils/icon-loader.js

@@ -0,0 +1,8 @@
+const fs = require("fs").promises
+
+const names = ["subscriptions", "settings"]
+const icons = names.map(name => fs.readFile(`html/static/images/${name}.svg`, "utf8"))
+
+module.exports.icons = Promise.all(icons).then(resolvedIcons => {
+	return new Map(names.map((name, index) => [name, resolvedIcons[index]]))
+})

utils/upgradedb.js

@@ -70,6 +70,31 @@ const deltas = [
 			.run()
 		db.prepare("CREATE TABLE TakedownChannels (ucid TEXT NOT NULL, org TEXT, url TEXT, PRIMARY KEY (ucid))")
 			.run()
+	},
+	// 11: Settings +theme
+	function() {
+		db.prepare("ALTER TABLE Settings ADD COLUMN theme INTEGER DEFAULT 0")
+			.run()
+	},
+	// 12: Channels +missing +missing_reason, Subscriptions -
+	// Better management for missing channels
+	// We totally discard the existing Subscriptions.channel_missing since it is unreliable.
+	function() {
+		db.prepare("ALTER TABLE Channels ADD COLUMN missing INTEGER NOT NULL DEFAULT 0")
+			.run()
+		db.prepare("ALTER TABLE Channels ADD COLUMN missing_reason TEXT")
+			.run()
+		// https://www.sqlite.org/lang_altertable.html#making_other_kinds_of_table_schema_changes
+		db.transaction(() => {
+			db.prepare("CREATE TABLE NEW_Subscriptions (token TEXT NOT NULL, ucid TEXT NOT NULL, PRIMARY KEY (token, ucid))")
+				.run()
+			db.prepare("INSERT INTO NEW_Subscriptions (token, ucid) SELECT token, ucid FROM Subscriptions")
+				.run()
+			db.prepare("DROP TABLE Subscriptions")
+				.run()
+			db.prepare("ALTER TABLE NEW_Subscriptions RENAME TO Subscriptions")
+				.run()
+		})()
 	}
 ]
 
@@ -82,7 +107,7 @@ async function createBackup(entry) {
 
 /**
  * @param {number} entry
- * @param {boolean} log
+ * @param {boolean} [log]
  */
 function runDelta(entry, log) {
 	process.stdout.write(`Upgrading database to version ${entry}... `)

utils/youtube.js

@@ -1,15 +1,59 @@
 const {request} = require("./request")
 const db = require("./db")
 
-async function fetchChannel(ucid, instance) {
+async function fetchChannel(path, ucid, instance) {
+	function updateGoodData(channel) {
+		const bestIcon = channel.authorThumbnails.slice(-1)[0]
+		const iconURL = bestIcon ? bestIcon.url : null
+		db.prepare("REPLACE INTO Channels (ucid, name, icon_url, missing, missing_reason) VALUES (?, ?, ?, 0, NULL)").run(channel.authorId, channel.author, iconURL)
+	}
+
+	function updateBadData(channel) {
+		if (channel.identifier === "NOT_FOUND" || channel.identifier === "ACCOUNT_TERMINATED") {
+			db.prepare("UPDATE Channels SET missing = 1, missing_reason = ? WHERE ucid = ?").run(channel.error, channel.authorId)
+			return {
+				missing: true,
+				message: channel.error
+			}
+		} else {
+			return {
+				missing: false,
+				message: channel.error
+			}
+		}
+	}
+
 	if (!instance) throw new Error("No instance parameter provided")
-	// fetch
-	const channel = await request(`${instance}/api/v1/channels/${ucid}`).then(res => res.json())
-	// update database
-	const bestIcon = channel.authorThumbnails.slice(-1)[0]
-	const iconURL = bestIcon ? bestIcon.url : null
-	db.prepare("REPLACE INTO Channels (ucid, name, icon_url) VALUES (?, ?, ?)").run([channel.authorId, channel.author, iconURL])
-	// return
+
+	const row = db.prepare("SELECT * FROM Channels WHERE ucid = ?").get(ucid)
+
+	// handle the case where the channel has a known error
+	if (row && row.missing_reason) {
+		return {
+			error: true,
+			ucid,
+			row,
+			missing: true,
+			message: row.missing_reason
+		}
+	}
+
+	/** @type {any} */
+	const channel = await request(`${instance}/api/v1/channels/${ucid}?second__path=${path}`).then(res => res.json())
+
+	// handle the case where the channel has a newly discovered error
+	if (channel.error) {
+		const missingData = updateBadData(channel)
+		return {
+			error: true,
+			ucid,
+			row,
+			...missingData
+		}
+	}
+
+	// handle the case where the channel returns good data (this is the only remaining scenario)
+	updateGoodData(channel)
 	return channel
 }