added deno script to generate wallpapers metadata from images

utils/wallpapers.ts

@@ -0,0 +1,60 @@
+
+import exifr from "npm:exifr@^7.1.3";
+import { writeJson } from "https://deno.land/x/jsonfile@1.0.0/mod.ts";
+
+const publicPath = "/public";
+const wallpapersPath = "/wallpapers";
+const imagesPath = `${Deno.cwd()}${publicPath}${wallpapersPath}`;
+
+interface MyWallpaper {
+    file: string;
+    location: string;
+    date: string;
+}
+
+const wallpapers: MyWallpaper[] = [];
+
+// For each file in the wallpapers directory
+for await (const dirEntry of Deno.readDir(imagesPath)) {
+
+    if (!dirEntry.isFile || dirEntry.name === ".gitkeep") {
+        continue;
+    }
+
+    // Open file
+    const path = `${imagesPath}/${dirEntry.name}`;
+    const bytes = await Deno.readFile(path);
+
+    // Parse exif
+    const exif = await exifr.parse(bytes);
+
+    // Timezones are too hard
+    const timestamp = Date.parse(exif.DateTimeOriginal);
+    const dateObject = new Date(timestamp);
+    const date = dateObject.toISOString().split("T")[0];
+
+    // Http request to get location
+    const response = await fetch(
+        `https://nominatim.openstreetmap.org/reverse?format=json&lat=${exif.latitude}&lon=${exif.longitude}&zoom=5`,
+        { headers: { "User-Agent": "https://philippeloctaux.com" } }
+    );
+    const data = await response.json();
+    const location = data?.display_name;
+
+    // Final filename
+    const file = `${wallpapersPath}/${dirEntry.name}`;
+
+    console.log(`Processed ${file}`);
+
+    wallpapers.push({
+        file,
+        date,
+        location,
+    });
+
+}
+
+// write to /public/wallpapers.json
+const jsonPath = `${Deno.cwd()}${publicPath}/wallpapers.json`;
+await writeJson(jsonPath, wallpapers);
+console.log(`Wrote to ${jsonPath}`);