From 873e2b9381a12ad0b2e6303f6a308d5d47e1f14f Mon Sep 17 00:00:00 2001
From: Tyler Schicke <tyler_schicke@brown.edu>
Date: Mon, 20 May 2019 04:31:11 -0400
Subject: Added downsizing images

---
 src/server/downsize.ts | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 src/server/downsize.ts

(limited to 'src/server/downsize.ts')

diff --git a/src/server/downsize.ts b/src/server/downsize.ts
new file mode 100644
index 000000000..ed68fbecc
--- /dev/null
+++ b/src/server/downsize.ts
@@ -0,0 +1,40 @@
+import * as sharp from 'sharp';
+import * as fs from 'fs';
+
+const folder = "./src/server/public/files/";
+const pngTypes = ["png", "PNG"];
+const jpgTypes = ["jpg", "JPG", "jpeg", "JPEG"];
+const smallResizer = sharp().resize(100);
+fs.readdir(folder, async (err, files) => {
+    if (err) {
+        console.log(err);
+        return;
+    }
+    // files.forEach(file => {
+    //     if (file.includes("_s") || file.includes("_m") || file.includes("_l")) {
+    //         fs.unlink(folder + file, () => { });
+    //     }
+    // });
+    for (const file of files) {
+        const filesplit = file.split(".");
+        let resizers = [
+            { resizer: sharp().resize(100, undefined, { withoutEnlargement: true }), suffix: "_s" },
+            { resizer: sharp().resize(400, undefined, { withoutEnlargement: true }), suffix: "_m" },
+            { resizer: sharp().resize(900, undefined, { withoutEnlargement: true }), suffix: "_l" },
+        ];
+        if (pngTypes.some(type => file.endsWith(type))) {
+            resizers.forEach(element => {
+                element.resizer = element.resizer.png();
+            });
+        } else if (jpgTypes.some(type => file.endsWith(type))) {
+            resizers.forEach(element => {
+                element.resizer = element.resizer.jpeg();
+            });
+        } else {
+            continue;
+        }
+        resizers.forEach(resizer => {
+            fs.createReadStream(folder + file).pipe(resizer.resizer).pipe(fs.createWriteStream(folder + filesplit[0] + resizer.suffix + "." + filesplit[1]));
+        });
+    }
+});
\ No newline at end of file
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