1 files changed, 78 insertions, 0 deletions
diff --git a/client/simple/tools/img.js b/client/simple/tools/img.js
new file mode 100644
index 000000000..8f815970a
--- /dev/null
+++ b/client/simple/tools/img.js
@@ -0,0 +1,78 @@
+import fs from "fs";
+import path from "path";
+import sharp from "sharp";
+import { optimize as svgo } from "svgo";
+
+/**
+ * @typedef {object} Src2Dest - Mapping of src to dest
+ * @property {string} src - Name of the source file.
+ * @property {string} dest - Name of the destination file.
+ */
+
+
+/**
+ * Convert a list of SVG files to PNG.
+ *
+ * @param {Src2Dest[]} items - Array of SVG files (src: SVG, dest:PNG) to convert.
+ */
+
+async function svg2png (items) {
+  items.forEach(
+    async (item) => {
+      try {
+        fs.mkdir(path.dirname(item.dest), { recursive: true }, (err) => {
+          if (err)
+            throw err;
+        });
+
+        const info = await sharp(item.src).png({
+          force: true,
+          compressionLevel: 9,
+          palette: true,
+        }).toFile(item.dest);
+
+        console.log(
+          `[svg2png] created ${item.dest} -- bytes: ${info.size}, w:${info.width}px,  h:${info.height}px`
+        );
+      } catch (err) {
+        console.error(`ERROR: ${item.dest} -- ${err}`);
+        throw(err);
+      }
+    }
+  );
+}
+
+
+/**
+ * Optimize SVG images for WEB.
+ *
+ * @param {import('svgo').Config} svgo_opts - Options passed to svgo.
+ * @param {Src2Dest[]} items - Array of SVG files (src:SVG, dest:SVG) to optimize.
+ */
+
+async function svg2svg(svgo_opts, items) {
+  items.forEach(
+    async (item) => {
+      try {
+        fs.mkdir(path.dirname(item.dest), { recursive: true }, (err) => {
+          if (err)
+            throw err;
+        });
+
+        const raw = fs.readFileSync(item.src, "utf8");
+        const opt = svgo(raw, svgo_opts);
+        fs.writeFileSync(item.dest, opt.data);
+        console.log(
+          `[svg2svg] optimized: ${item.dest} -- src: ${item.src}`
+        );
+
+      } catch (err) {
+        console.error(`ERROR: optimize src: ${item.src} -- ${err}`);
+        throw(err);
+      }
+    }
+  );
+}
+
+
+export { svg2png, svg2svg };