From 03ecae4348182885b8aa06d2b42c2e7da88923b2 Mon Sep 17 00:00:00 2001
From: Rory& <root@rory.gay>
Date: Fri, 12 Jun 2026 16:27:38 +0200
Subject: Move more extensions to extensions

---
 src/extensions/Random.ts | 92 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 src/extensions/Random.ts

(limited to 'src/extensions/Random.ts')

diff --git a/src/extensions/Random.ts b/src/extensions/Random.ts
new file mode 100644
index 00000000..212e1c9a
--- /dev/null
+++ b/src/extensions/Random.ts
@@ -0,0 +1,92 @@
+/*
+	Spacebar: A FOSS re-implementation and extension of the Discord.com backend.
+	Copyright (C) 2026 Spacebar and Spacebar Contributors
+
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU Affero General Public License as published
+	by the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU Affero General Public License for more details.
+
+	You should have received a copy of the GNU Affero General Public License
+	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+// Inspired by dotnet: https://learn.microsoft.com/en-us/dotnet/api/system.random?view=net-9.0#methods
+export class Random {
+    public static nextInt(min?: number, max?: number): number {
+        if (min === undefined && max === undefined) {
+            // Next()
+            return Math.floor(Math.random() * Number.MAX_SAFE_INTEGER);
+        } else if (max === undefined) {
+            // Next(Int32)
+            if (min! <= 0) throw new RangeError("min must be greater than 0");
+            return Math.floor(Math.random() * min!);
+        } else {
+            // Next(Int32, Int32)
+            if (min! >= max!) throw new RangeError("min must be less than max");
+            return Math.floor(Math.random() * (max! - min!)) + min!;
+        }
+    }
+
+    public static nextDouble(min?: number, max?: number): number {
+        if (min === undefined && max === undefined) {
+            // NextDouble()
+            return Math.random();
+        } else if (max === undefined) {
+            // NextDouble(Double)
+            if (min! <= 0) throw new RangeError("min must be greater than 0");
+            return Math.random() * min!;
+        } else {
+            // NextDouble(Double, Double)
+            if (min! >= max!) throw new RangeError("min must be less than max");
+            return Math.random() * (max! - min!) + min!;
+        }
+    }
+
+    public static nextBytes(count: number): Uint8Array {
+        if (count <= 0) throw new RangeError("count must be greater than 0");
+        const arr = new Uint8Array(count);
+        for (let i = 0; i < count; i++) {
+            arr[i] = Math.floor(Math.random() * 256);
+        }
+        return arr;
+    }
+
+    public static nextBytesArray(count: number) {
+        if (count <= 0) throw new RangeError("count must be greater than 0");
+        const arr = [];
+        for (let i = 0; i < count; i++) {
+            arr.push(Math.floor(Math.random() * 256));
+        }
+        return arr;
+    }
+
+    public static getItems<T>(items: T[], count: number): T[] {
+        if (count <= 0) throw new RangeError("count must be greater than 0");
+        if (count >= items.length) return this.shuffle(items);
+        const usedIndices = new Set<number>();
+        const result: T[] = [];
+        while (result.length < count && usedIndices.size < items.length) {
+            const index = Math.floor(Math.random() * items.length);
+            if (!usedIndices.has(index)) {
+                usedIndices.add(index);
+                result.push(items[index]);
+            }
+        }
+        return result;
+    }
+
+    public static shuffle<T>(items: T[]): T[] {
+        const array = [...items];
+        for (let i = array.length - 1; i > 0; i--) {
+            const j = Math.floor(Math.random() * (i + 1));
+            [array[i], array[j]] = [array[j], array[i]];
+        }
+        return array;
+    }
+}
-- 
cgit 1.5.1