From 3c0d577aa6cc7033fa4a78fe05b37cc69c6ad3d6 Mon Sep 17 00:00:00 2001
From: Taken <taken@mairimashita.org>
Date: Mon, 1 Sep 2025 14:34:20 +0200
Subject: [PATCH] feat(general): add typesafe romanize utility

---
 src/lib/hypixel/general.ts | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/src/lib/hypixel/general.ts b/src/lib/hypixel/general.ts
index 2eae5b0..b4d0baf 100644
--- a/src/lib/hypixel/general.ts
+++ b/src/lib/hypixel/general.ts
@@ -32,3 +32,22 @@ export function concatStatsArray<T extends Record<string, number>>(keys: (keyof
     }
     return base as T
 }
+
+export function romanize(num: number): string {
+    if (!Number.isFinite(num)) return "NaN"
+    const digits = Math.trunc(num).toString().split("")
+    const key = [
+        "","C","CC","CCC","CD","D","DC","DCC","DCCC","CM",
+        "","X","XX","XXX","XL","L","LX","LXX","LXXX","XC",
+        "","I","II","III","IV","V","VI","VII","VIII","IX"
+    ] as const
+
+    let roman = ""
+    let i = 3
+    while (i--) {
+        const idx = Number(digits.pop()) + i * 10
+        roman = (key[idx] || "") + roman
+    }
+    const thousands = Number(digits.join(""))
+    return "M".repeat(thousands) + roman
+}