First release

src/lib/structures/Timeline.js

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+const constants = require("../constants")
+const TimelineImage = require("./TimelineImage")
+const collectors = require("../collectors")
+require("../testimports")(constants, TimelineImage)
+
+function transformEdges(edges) {
+	return edges.map(e => new TimelineImage(e.node))
+}
+
+class Timeline {
+	/**
+	 * @param {import("./User")} user
+	 */
+	constructor(user) {
+		this.user = user
+		this.pages = []
+		this.addPage(this.user.data.edge_owner_to_timeline_media)
+		this.page_info = this.user.data.edge_owner_to_timeline_media.page_info
+	}
+
+	hasNextPage() {
+		return this.page_info.has_next_page
+	}
+
+	fetchNextPage() {
+		if (!this.hasNextPage()) return constants.symbols.NO_MORE_PAGES
+		return collectors.fetchTimelinePage(this.user.data.id, this.page_info.end_cursor).then(page => {
+			this.addPage(page)
+			return this.pages.slice(-1)[0]
+		})
+	}
+
+	async fetchUpToPage(index) {
+		while (this.pages[index] === undefined && this.hasNextPage()) {
+			await this.fetchNextPage()
+		}
+	}
+
+	addPage(page) {
+		this.pages.push(transformEdges(page.edges))
+		this.page_info = page.page_info
+	}
+}
+
+module.exports = Timeline

src/lib/structures/TimelineImage.js

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+class GraphImage {
+	/**
+	 * @param {import("../types").GraphImage} data
+	 */
+	constructor(data) {
+		this.data = data
+	}
+
+	/**
+	 * @param {number} size
+	 */
+	getSuggestedThumbnail(size) {
+		let found = null
+		for (const tr of this.data.thumbnail_resources) {
+			found = tr
+			if (tr.config_width >= size) break
+		}
+		return found
+	}
+
+	getSrcset() {
+		return this.data.thumbnail_resources.map(tr => {
+			const p = new URLSearchParams()
+			p.set("width", String(tr.config_width))
+			p.set("url", tr.src)
+			return `/imageproxy?${p.toString()} ${tr.config_width}w`
+		}).join(", ")
+	}
+
+	getCaption() {
+		if (this.data.edge_media_to_caption.edges[0]) return this.data.edge_media_to_caption.edges[0].node.text
+		else return null
+	}
+
+	getAlt() {
+		// For some reason, pages 2+ don't contain a11y data. Instagram web client falls back to image caption.
+		return this.data.accessibility_caption || this.getCaption() || "No image description available."
+	}
+}
+
+module.exports = GraphImage

src/lib/structures/User.js

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+const Timeline = require("./Timeline")
+require("../testimports")(Timeline)
+
+class User {
+	/**
+	 * @param {import("../types").GraphUser} data
+	 */
+	constructor(data) {
+		this.data = data
+		this.following = data.edge_follow.count
+		this.followedBy = data.edge_followed_by.count
+		this.posts = data.edge_owner_to_timeline_media.count
+		this.timeline = new Timeline(this)
+	}
+
+	export() {
+		return this.data
+	}
+}
+
+module.exports = User

src/lib/structures/index.js

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+module.exports = {
+	User: require("./User")
+}