First release

src/lib/structures/TimelineImage.js

@@ -0,0 +1,41 @@
+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