From 7fae7f74c5315877e0d341ec60ceef2e87c0c1cc Mon Sep 17 00:00:00 2001
From: Hubert Hirtz <hubert@hirtz.pm>
Date: Wed, 21 Oct 2020 16:22:28 +0200
Subject: Vertical channel list

---
 ui/style.go | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'ui/style.go')

diff --git a/ui/style.go b/ui/style.go
index 77dc515..acc1a41 100644
--- a/ui/style.go
+++ b/ui/style.go
@@ -1,6 +1,8 @@
 package ui
 
 import (
+	"hash/fnv"
+
 	"github.com/gdamore/tcell/v2"
 	"github.com/mattn/go-runewidth"
 )
@@ -223,3 +225,20 @@ func colorFromCode(code int) (color tcell.Color) {
 	}
 	return
 }
+
+// see <https://modern.ircdocs.horse/formatting.html>
+var identColorBlacklist = []int{1, 8, 16, 27, 28, 88, 89, 90, 91}
+
+func IdentColor(s string) (code int) {
+	h := fnv.New32()
+	_, _ = h.Write([]byte(s))
+
+	code = int(h.Sum32()) % (99 - len(identColorBlacklist))
+	for _, c := range identColorBlacklist {
+		if c <= code {
+			code++
+		}
+	}
+
+	return
+}
-- 
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