From 6eb4b41e343a5eaba5aa02d521b88e28b203b099 Mon Sep 17 00:00:00 2001
From: Marcel Meyer <mm.marcelmeyer@gmail.com>
Date: Fri, 19 Dec 2025 23:23:37 +0100
Subject: [PATCH] Add generic utils constraint function

---
 src/core.go           |  2 +-
 src/terminal.go       |  4 ++--
 src/util/util.go      | 22 ++--------------------
 src/util/util_test.go | 29 -----------------------------
 4 files changed, 5 insertions(+), 52 deletions(-)

diff --git a/src/core.go b/src/core.go
index 024c6378..debcc3f1 100644
--- a/src/core.go
+++ b/src/core.go
@@ -530,7 +530,7 @@ func Run(opts *Options) (int, error) {
 			break
 		}
 		if delay && reading {
-			dur := util.DurWithin(
+			dur := util.Constrain(
 				time.Duration(ticks-startTick)*coordinatorDelayStep,
 				0, coordinatorDelayMax)
 			time.Sleep(dur)
diff --git a/src/terminal.go b/src/terminal.go
index 6b8d3715..be97a686 100644
--- a/src/terminal.go
+++ b/src/terminal.go
@@ -3859,8 +3859,8 @@ func (t *Terminal) printColoredString(window tui.Window, text []rune, offsets []
 	maxOffset := int32(len(text))
 	var url *url
 	for _, offset := range offsets {
-		b := util.Constrain32(offset.offset[0], index, maxOffset)
-		e := util.Constrain32(offset.offset[1], index, maxOffset)
+		b := util.Constrain(offset.offset[0], index, maxOffset)
+		e := util.Constrain(offset.offset[1], index, maxOffset)
 		if url != nil && offset.url != url {
 			url = nil
 			window.LinkEnd()
diff --git a/src/util/util.go b/src/util/util.go
index 99506387..cf892398 100644
--- a/src/util/util.go
+++ b/src/util/util.go
@@ -1,11 +1,11 @@
 package util
 
 import (
+	"cmp"
 	"math"
 	"os"
 	"strconv"
 	"strings"
-	"time"
 
 	"github.com/mattn/go-isatty"
 	"github.com/rivo/uniseg"
@@ -55,13 +55,7 @@ func Truncate(input string, limit int) ([]rune, int) {
 	return runes, width
 }
 
-// Constrain32 limits the given 32-bit integer with the upper and lower bounds
-func Constrain32(val int32, minimum int32, maximum int32) int32 {
-	return max(min(val, maximum), minimum)
-}
-
-// Constrain limits the given integer with the upper and lower bounds
-func Constrain(val int, minimum int, maximum int) int {
+func Constrain[T cmp.Ordered](val, minimum, maximum T) T {
 	return max(min(val, maximum), minimum)
 }
 
@@ -74,18 +68,6 @@ func AsUint16(val int) uint16 {
 	return uint16(val)
 }
 
-// DurWithin limits the given time.Duration with the upper and lower bounds
-func DurWithin(
-	val time.Duration, min time.Duration, max time.Duration) time.Duration {
-	if val < min {
-		return min
-	}
-	if val > max {
-		return max
-	}
-	return val
-}
-
 // IsTty returns true if the file is a terminal
 func IsTty(file *os.File) bool {
 	fd := file.Fd()
diff --git a/src/util/util_test.go b/src/util/util_test.go
index e989dce8..5a609587 100644
--- a/src/util/util_test.go
+++ b/src/util/util_test.go
@@ -4,7 +4,6 @@ import (
 	"math"
 	"strings"
 	"testing"
-	"time"
 )
 
 func TestConstrain(t *testing.T) {
@@ -20,22 +19,6 @@ func TestConstrain(t *testing.T) {
 	}
 }
 
-func TestConstrain32(t *testing.T) {
-	if Constrain32(-3, -1, 3) != -1 {
-		t.Error("Expected", -1)
-	}
-	if Constrain32(2, -1, 3) != 2 {
-		t.Error("Expected", 2)
-	}
-
-	if Constrain32(5, -1, 3) != 3 {
-		t.Error("Expected", 3)
-	}
-	if Constrain32(0, math.MinInt32, math.MaxInt32) != 0 {
-		t.Error("Expected", 0)
-	}
-}
-
 func TestAsUint16(t *testing.T) {
 	if AsUint16(5) != 5 {
 		t.Error("Expected", 5)
@@ -57,18 +40,6 @@ func TestAsUint16(t *testing.T) {
 	}
 }
 
-func TestDurWithIn(t *testing.T) {
-	if DurWithin(time.Duration(5), time.Duration(1), time.Duration(8)) != time.Duration(5) {
-		t.Error("Expected", time.Duration(0))
-	}
-	if DurWithin(time.Duration(0)*time.Second, time.Second, time.Duration(3)*time.Second) != time.Second {
-		t.Error("Expected", time.Second)
-	}
-	if DurWithin(time.Duration(10)*time.Second, time.Duration(0), time.Second) != time.Second {
-		t.Error("Expected", time.Second)
-	}
-}
-
 func TestOnce(t *testing.T) {
 	o := Once(false)
 	if o() {