Add video support (experimental!)

src/lib/structures/TimelineBaseMethods.js

@@ -1,5 +1,5 @@
 const constants = require("../constants")
-const {proxyImage, proxyExtendedOwner} = require("../utils/proxyurl")
+const {proxyImage, proxyVideo} = require("../utils/proxyurl")
 
 class TimelineBaseMethods {
 	constructor() {
@@ -21,10 +21,18 @@ class TimelineBaseMethods {
 		}
 	}
 
+	isVideo() {
+		return this.data.__typename === "GraphVideo"
+	}
+
 	getDisplayUrlP() {
 		return proxyImage(this.data.display_url)
 	}
 
+	getVideoUrlP() {
+		return proxyVideo(this.data.video_url)
+	}
+
 	getAlt() {
 		return this.data.accessibility_caption || "No image description available."
 	}

src/lib/structures/TimelineEntry.js

@@ -203,6 +203,12 @@ class TimelineEntry extends TimelineBaseMethods {
 		}
 	}
 
+	fetchVideoURL() {
+		if (!this.isVideo()) return Promise.resolve(null)
+		else if (this.data.video_url) return Promise.resolve(this.getVideoUrlP())
+		else return this.update().then(() => this.getVideoUrlP())
+	}
+
 	async fetchFeedData() {
 		const children = await this.fetchChildren()
 		return {