From d4f0eae4dc54f356f296ff26aba006e69d21ec0b Mon Sep 17 00:00:00 2001
From: Jake Mannens <jake@asger.xyz>
Date: Tue, 29 Aug 2023 13:53:23 +1000
Subject: Added file size to ViewMedia page

---
 Util.cs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'Util.cs')

diff --git a/Util.cs b/Util.cs
index 9cbccdf..31a2e84 100644
--- a/Util.cs
+++ b/Util.cs
@@ -1,8 +1,21 @@
 namespace HyperBooru.Util;
 
 public static class Extensions {
+    public static readonly string[] MagnitudeOrders = new[] {
+        "K", "M", "G", "T", "P", "E", "Z", "Y", "R", "Q"
+    };
+
     public static DateTime? TryParseDateTimeUtc(this string s) {
         bool success = DateTime.TryParse(s, out var dateTime);
         return success ? DateTime.SpecifyKind(dateTime, DateTimeKind.Utc) : null;
     }
+
+    public static string ToBytesSI(this long x) {
+        var exp = (int) Math.Log10(x);
+        var suffix = MagnitudeOrders.ElementAtOrDefault(exp / 3 - 1);
+        if(suffix is null)
+            return x.ToString();
+        double n = x / Math.Pow(10, exp / 3 * 3);
+        return $"{Math.Round(n, 2 - (exp % 3))} {suffix}B";
+    }
 }
-- 
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