Merge pull request #141 from bsushmith/add/hsl_hsla

feat: add hsl and hsla functions

styles/README.md

@@ -188,6 +188,23 @@ This function returns a string representation of the given RGBA color.
 rgbaColor := styles.RGBA(255, 0, 0, 0.5) // Returns "rgba(255, 0, 0, 0.5)"
 ```
 
+##### `HSL(h, s, l int) string`
+
+This function returns a string representation of the given HSL color.
+
+```go
+hslColor := styles.HSL(120, 100, 50) // Returns "hsl(120, 100%, 50%)"
+```
+
+##### `HSLA(h, s, l int, a float64) string`
+
+This function returns a string representation of the given HSLA color.
+
+```go
+hslaColor := styles.HSLA(120, 100, 50, 0.5) // Returns "hsla(120, 100%, 50%, 0.5)"
+```
+
+
 #### Other Functions
 
 ##### `Int(value int) string`

styles/utils.go

@@ -128,3 +128,30 @@ func Seconds(value float64) string {
 func Milliseconds(value int) string {
 	return strconv.Itoa(value) + "ms"
 }
+
+func HSL(hue, saturation, lightness int) string {
+	var builder strings.Builder
+	builder.WriteString("hsl(")
+	builder.WriteString(strconv.FormatInt(int64(hue), 10))
+	builder.WriteString(",")
+	builder.WriteString(strconv.FormatInt(int64(saturation), 10))
+	builder.WriteString("%,")
+	builder.WriteString(strconv.FormatInt(int64(lightness), 10))
+	builder.WriteString("%")
+	builder.WriteString(")")
+	return builder.String()
+}
+
+func HSLA(hue, saturation, lightness int, alpha float64) string {
+	var builder strings.Builder
+	builder.WriteString("hsla(")
+	builder.WriteString(strconv.FormatInt(int64(hue), 10))
+	builder.WriteString(",")
+	builder.WriteString(strconv.FormatInt(int64(saturation), 10))
+	builder.WriteString("%,")
+	builder.WriteString(strconv.FormatInt(int64(lightness), 10))
+	builder.WriteString("%,")
+	builder.WriteString(strconv.FormatFloat(alpha, 'f', 2, 64))
+	builder.WriteString(")")
+	return builder.String()
+}

styles/utils_test.go

@@ -166,3 +166,18 @@ func TestMilliseconds(t *testing.T) {
 	assert.Equal(t, "0ms", Milliseconds(0))
 	assert.Equal(t, "110ms", Milliseconds(110))
 }
+
+func TestHSL(t *testing.T) {
+	assert.Equal(t, "hsl(100,50%,25%)", HSL(100, 50, 25))
+	assert.Equal(t, "hsl(0,0%,0%)", HSL(0, 0, 0))
+	assert.Equal(t, "hsl(50,70%,80%)", HSL(50, 70, 80))
+	assert.Equal(t, "hsl(20,40%,60%)", HSL(20, 40, 60))
+}
+
+func TestHSLA(t *testing.T) {
+	assert.Equal(t, "hsla(90,50%,30%,1.00)", HSLA(90, 50, 30, 1))
+	assert.Equal(t, "hsla(0,0%,0%,0.10)", HSLA(0, 0, 0, 0.1))
+	assert.Equal(t, "hsla(50,60%,70%,0.50)", HSLA(50, 60, 70, 0.5000))
+	assert.Equal(t, "hsla(25,35%,45%,0.25)", HSLA(25, 35, 45, 0.2500))
+	assert.Equal(t, "hsla(20,50%,80%,0.00)", HSLA(20, 50, 80, 0))
+}