From e79ebc242993c1ee5083efc0e9b0bc9ebbe5c999 Mon Sep 17 00:00:00 2001
From: Kavin <20838718+FireMasterK@users.noreply.github.com>
Date: Fri, 3 Feb 2023 16:45:13 +0000
Subject: [PATCH] Add helper utility to compress data.

---
 package.json                  |  1 +
 pnpm-lock.yaml                |  7 +++++++
 src/utils/compressionUtils.js | 18 ++++++++++++++++++
 3 files changed, 26 insertions(+)
 create mode 100644 src/utils/compressionUtils.js

diff --git a/package.json b/package.json
index 8519e11d..504d6b1b 100644
--- a/package.json
+++ b/package.json
@@ -21,6 +21,7 @@
         "linkify-html": "4.1.1",
         "linkifyjs": "4.1.1",
         "mux.js": "6.3.0",
+        "pako": "2.1.0",
         "qrcode": "^1.5.3",
         "shaka-player": "4.4.1",
         "stream-browserify": "3.0.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 5375c102..4ecea5c9 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -38,6 +38,9 @@ dependencies:
   mux.js:
     specifier: 6.3.0
     version: 6.3.0
+  pako:
+    specifier: 2.1.0
+    version: 2.1.0
   qrcode:
     specifier: ^1.5.3
     version: 1.5.3
@@ -4177,6 +4180,10 @@ packages:
     engines: {node: '>=6'}
     dev: false
 
+  /pako@2.1.0:
+    resolution: {integrity: sha512-w+eufiZ1WuJYgPXbV/PO3NCMEc3xqylkKHzp8bxp1uW4qaSNQUkwmLLEc3kKsfz8lpV1F8Ht3U1Cm+9Srog2ug==}
+    dev: false
+
   /parent-module@1.0.1:
     resolution: {integrity: sha512-GQ2EWRpQV8/o+Aw8YqtfZZPfNRWZYkbidE9k5rpl/hC3vtHHBfGm2Ifi6qWV+coDGkrUKZAxE3Lot5kcsRlh+g==}
     engines: {node: '>=6'}
diff --git a/src/utils/compressionUtils.js b/src/utils/compressionUtils.js
new file mode 100644
index 00000000..5f482c2e
--- /dev/null
+++ b/src/utils/compressionUtils.js
@@ -0,0 +1,18 @@
+export const compressGzip = async data => {
+    // Firefox does not support CompressionStream yet
+    if (typeof CompressionStream !== "undefined") {
+        let bytes = new TextEncoder().encode(data);
+        // eslint-disable-next-line no-undef
+        const cs = new CompressionStream("gzip");
+        const writer = cs.writable.getWriter();
+        writer.write(bytes);
+        writer.close();
+        const compAb = await new Response(cs.readable).arrayBuffer();
+        bytes = new Uint8Array(compAb);
+
+        return bytes;
+    } else {
+        const pako = require("pako");
+        return pako.gzip(data);
+    }
+};