From 93744c947cdc7a5b3d1efdf0a323f8fbd6242b50 Mon Sep 17 00:00:00 2001
From: looskie <50378828+Looskie@users.noreply.github.com>
Date: Fri, 25 Jun 2021 20:01:39 -0400
Subject: [PATCH] Refactoring: made this work the exact same in under 10 lines

---
 src/snowflake.ts | 47 ++++++-----------------------------------------
 1 file changed, 6 insertions(+), 41 deletions(-)

diff --git a/src/snowflake.ts b/src/snowflake.ts
index b3f56d4..480fe0a 100644
--- a/src/snowflake.ts
+++ b/src/snowflake.ts
@@ -1,44 +1,9 @@
-interface DeconstructedSnowflake {
-    timestamp: number;
-    date: Date;
-    workerID: number;
-    processID: number;
-    increment: number;
-    binary: string;
-}
-
 const EPOCH = 1420070400000; // Discord's EPOCH
 
-export function isSnowflake(snowflake: string): boolean {
-    const { timestamp } = deconstruct(snowflake);
-    return timestamp > EPOCH && timestamp <= 3619093655551;
+// Snowflakes will never be a string
+export function isSnowflake(snowflake: number | string): boolean {
+    snowflake = Number(snowflake);
+    return (
+        Number.isInteger(+snowflake) && snowflake > 4194304 && !isNaN(new Date(snowflake / 4194304 + EPOCH).getTime())
+    );
 }
-
-const deconstruct = (snowflake: string): DeconstructedSnowflake => {
-    const BINARY = idToBinary(snowflake).padStart(64, "0");
-    return {
-        timestamp: parseInt(BINARY.substring(0, 42), 2) + EPOCH,
-        get date() {
-            return new Date(this.timestamp);
-        },
-        workerID: parseInt(BINARY.substring(42, 47), 2),
-        processID: parseInt(BINARY.substring(47, 52), 2),
-        increment: parseInt(BINARY.substring(52, 64), 2),
-        binary: BINARY,
-    };
-};
-
-const idToBinary = (snowflake: string): string => {
-    let bin = "";
-    let high = parseInt(snowflake.slice(0, -10)) || 0;
-    let low = parseInt(snowflake.slice(-10));
-    while (low > 0 || high > 0) {
-        bin = String(low & 1) + bin;
-        low = Math.floor(low / 2);
-        if (high > 0) {
-            low += 5000000000 * (high % 2);
-            high = Math.floor(high / 2);
-        }
-    }
-    return bin;
-};