From 281f0984bb525bf727adae5e5d9c082a57a27205 Mon Sep 17 00:00:00 2001
From: Philippe Loctaux <p@philippeloctaux.com>
Date: Wed, 17 May 2023 22:25:08 +0200
Subject: [PATCH] added deno script to generate wallpapers metadata from images

---
 .gitignore                 |  4 ++-
 .vscode/settings.json      |  7 +++++
 package.json               | 11 +++----
 public/wallpapers/.gitkeep |  0
 utils/wallpapers.ts        | 60 ++++++++++++++++++++++++++++++++++++++
 5 files changed, 76 insertions(+), 6 deletions(-)
 create mode 100644 .vscode/settings.json
 create mode 100644 public/wallpapers/.gitkeep
 create mode 100644 utils/wallpapers.ts

diff --git a/.gitignore b/.gitignore
index 95dbc0e..b20b3b2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,6 @@
+# wallpapers
+/public/wallpapers.json
+
 # build output
 dist/
 # generated types
@@ -21,5 +24,4 @@ pnpm-debug.log*
 .DS_Store
 
 # ide
-.vscode/
 .idea/
\ No newline at end of file
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..5785dd5
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,7 @@
+{
+    "deno.enable": true,
+    "deno.unstable": true,
+    "deno.enablePaths":[
+        "./utils/"
+    ]
+}
\ No newline at end of file
diff --git a/package.json b/package.json
index 9e20c21..8da3a00 100644
--- a/package.json
+++ b/package.json
@@ -3,11 +3,12 @@
   "type": "module",
   "version": "0.0.1",
   "scripts": {
-    "dev": "astro dev",
-    "start": "astro dev",
-    "build": "astro build",
-    "preview": "astro preview",
-    "astro": "astro"
+    "dev": "npm run wallpapers && astro dev",
+    "start": "npm run wallpapers && astro dev",
+    "build": "npm run wallpapers && astro build",
+    "preview": "npm run wallpapers && astro preview",
+    "astro": "astro",
+    "wallpapers": "deno run --allow-read --allow-net --allow-write utils/wallpapers.ts"
   },
   "dependencies": {
     "@astrojs/tailwind": "^3.1.2",
diff --git a/public/wallpapers/.gitkeep b/public/wallpapers/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/utils/wallpapers.ts b/utils/wallpapers.ts
new file mode 100644
index 0000000..f6cf748
--- /dev/null
+++ b/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}`);