From 36a60d374a1c972251af1b5a49a8241b0a53e6f6 Mon Sep 17 00:00:00 2001
From: Jonathan Johnson <jon.johnson@ucsf.edu>
Date: Wed, 1 Nov 2023 08:59:08 -0700
Subject: [PATCH] Load UUID polyfil ourselves

Pulling this from ember-data is complicating our build, let's load it
ourselves.
---
 addon/utils/load-polyfills.js | 68 +++++++++++++++++++++++++++++++++--
 index.js                      |  7 ----
 2 files changed, 66 insertions(+), 9 deletions(-)

diff --git a/addon/utils/load-polyfills.js b/addon/utils/load-polyfills.js
index 4d7afcca9..5952b8cd9 100644
--- a/addon/utils/load-polyfills.js
+++ b/addon/utils/load-polyfills.js
@@ -1,4 +1,68 @@
 export async function loadPolyfills() {
-  //Currently empty as we don't need any polyfills right now
-  //Keeping it here case we need to add new polyfills later [JJ 10/2022]
+  //we need CRYPTO.randomUUID until we drop support for Safari 15.x
+  installUUIDPolyfill();
+}
+
+function installUUIDPolyfill() {
+  const CRYPTO = window.crypto;
+
+  if (!CRYPTO.randomUUID) {
+    // we might be able to optimize this by requesting more bytes than we need at a time
+    const rng = function () {
+      // WHATWG crypto RNG - http://wiki.whatwg.org/wiki/Crypto
+      let rnds8 = new Uint8Array(16);
+
+      if (!CRYPTO.getRandomValues) {
+        throw new Error(`Unable to generate bytes for UUID`);
+      }
+
+      return CRYPTO.getRandomValues ? CRYPTO.getRandomValues(rnds8) : CRYPTO.randomFillSync(rnds8);
+    };
+
+    /*
+     * Convert array of 16 byte values to UUID string format of the form:
+     * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
+     */
+    const byteToHex = [];
+    for (let i = 0; i < 256; ++i) {
+      byteToHex[i] = (i + 0x100).toString(16).substr(1);
+    }
+
+    const bytesToUuid = function (buf) {
+      let bth = byteToHex;
+      // join used to fix memory issue caused by concatenation: https://bugs.chromium.org/p/v8/issues/detail?id=3175#c4
+      return [
+        bth[buf[0]],
+        bth[buf[1]],
+        bth[buf[2]],
+        bth[buf[3]],
+        '-',
+        bth[buf[4]],
+        bth[buf[5]],
+        '-',
+        bth[buf[6]],
+        bth[buf[7]],
+        '-',
+        bth[buf[8]],
+        bth[buf[9]],
+        '-',
+        bth[buf[10]],
+        bth[buf[11]],
+        bth[buf[12]],
+        bth[buf[13]],
+        bth[buf[14]],
+        bth[buf[15]],
+      ].join('');
+    };
+
+    CRYPTO.randomUUID = function uuidv4() {
+      let rnds = rng();
+
+      // Per 4.4, set bits for version and `clock_seq_hi_and_reserved`
+      rnds[6] = (rnds[6] & 0x0f) | 0x40;
+      rnds[8] = (rnds[8] & 0x3f) | 0x80;
+
+      return bytesToUuid(rnds);
+    };
+  }
 }
diff --git a/index.js b/index.js
index bc5a20d84..878d78605 100644
--- a/index.js
+++ b/index.js
@@ -32,13 +32,6 @@ module.exports = {
         ],
       },
     },
-    '@embroider/macros': {
-      setConfig: {
-        '@ember-data/store': {
-          polyfillUUID: true,
-        },
-      },
-    },
   },
 
   included: function () {