feat: Add website (#1157)

Co-authored-by: Bjorn Lammers <bjorn@lammers.media>

web/src/app/sitemap.ts

@@ -0,0 +1,36 @@
+import { BASE_URL, WEB_URL } from "@/constants"
+import { getAllIcons } from "@/lib/api"
+import type { MetadataRoute } from "next"
+
+export const dynamic = "force-static"
+
+export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
+	const iconsData = await getAllIcons()
+	return [
+		{
+			url: WEB_URL,
+			lastModified: new Date(),
+			changeFrequency: "yearly",
+			priority: 1,
+		},
+		{
+			url: `${WEB_URL}/icons`,
+			lastModified: new Date(),
+			changeFrequency: "daily",
+			priority: 1,
+			images: [`${WEB_URL}/icons/icon.png`],
+		},
+		...Object.keys(iconsData).map((iconName) => ({
+			url: `${WEB_URL}/icons/${iconName}`,
+			lastModified: iconsData[iconName].update.timestamp,
+			changeFrequency: "yearly" as const,
+			priority: 0.8,
+			images: [
+				`${BASE_URL}/png/${iconName}.png`,
+				// SVG is conditional if it exists
+				iconsData[iconName].base === "svg" ? `${BASE_URL}/svg/${iconName}.svg` : null,
+				`${BASE_URL}/webp/${iconName}.webp`,
+			].filter(Boolean) as string[],
+		})),
+	]
+}