init

example_usage.go

@@ -0,0 +1,123 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/kevin/go-jdenticon/jdenticon"
+)
+
+func main() {
+	// Test the new public API with different input types
+	
+	// 1. Generate SVG from email address
+	fmt.Println("=== Generating SVG avatar for email ===")
+	svg, err := jdenticon.ToSVG("user@example.com", 128)
+	if err != nil {
+		panic(err)
+	}
+	fmt.Printf("SVG length: %d characters\n", len(svg))
+	fmt.Printf("SVG preview: %s...\n", svg[:100])
+	
+	// Save SVG to file
+	err = os.WriteFile("avatar_email.svg", []byte(svg), 0644)
+	if err != nil {
+		panic(err)
+	}
+	fmt.Println("✅ Saved to avatar_email.svg")
+	
+	// 2. Generate PNG from username
+	fmt.Println("\n=== Generating PNG avatar for username ===")
+	png, err := jdenticon.ToPNG("johndoe", 64)
+	if err != nil {
+		panic(err)
+	}
+	fmt.Printf("PNG size: %d bytes\n", len(png))
+	
+	// Save PNG to file
+	err = os.WriteFile("avatar_username.png", png, 0644)
+	if err != nil {
+		panic(err)
+	}
+	fmt.Println("✅ Saved to avatar_username.png")
+	
+	// 3. Generate with custom configuration
+	fmt.Println("\n=== Generating with custom config ===")
+	config, err := jdenticon.Configure(
+		jdenticon.WithHueRestrictions([]float64{120, 240}), // Blue/green hues only
+		jdenticon.WithColorSaturation(0.8),
+		jdenticon.WithBackgroundColor("#ffffff"), // White background
+		jdenticon.WithPadding(0.1),
+	)
+	if err != nil {
+		panic(err)
+	}
+	
+	customSvg, err := jdenticon.ToSVG("custom-avatar", 96, config)
+	if err != nil {
+		panic(err)
+	}
+	
+	err = os.WriteFile("avatar_custom.svg", []byte(customSvg), 0644)
+	if err != nil {
+		panic(err)
+	}
+	fmt.Println("✅ Saved custom styled avatar to avatar_custom.svg")
+	
+	// 4. Test different input types
+	fmt.Println("\n=== Testing different input types ===")
+	inputs := []interface{}{
+		"hello world",
+		42,
+		3.14159,
+		true,
+		[]byte("binary data"),
+	}
+	
+	for i, input := range inputs {
+		svg, err := jdenticon.ToSVG(input, 48)
+		if err != nil {
+			panic(err)
+		}
+		filename := fmt.Sprintf("avatar_type_%d.svg", i)
+		err = os.WriteFile(filename, []byte(svg), 0644)
+		if err != nil {
+			panic(err)
+		}
+		fmt.Printf("✅ Generated avatar for %T: %v -> %s\n", input, input, filename)
+	}
+	
+	// 5. Show hash generation
+	fmt.Println("\n=== Hash generation ===")
+	testValues := []interface{}{"test", 123, []byte("data")}
+	for _, val := range testValues {
+		hash := jdenticon.ToHash(val)
+		fmt.Printf("Hash of %v (%T): %s\n", val, val, hash)
+	}
+	
+	// 6. Generate avatars for a group of users
+	fmt.Println("\n=== Group avatars ===")
+	users := []string{
+		"alice@company.com",
+		"bob@company.com", 
+		"charlie@company.com",
+		"diana@company.com",
+	}
+	
+	for _, user := range users {
+		png, err := jdenticon.ToPNG(user, 80)
+		if err != nil {
+			panic(err)
+		}
+		
+		filename := fmt.Sprintf("user_%s.png", user[:5]) // Use first 5 chars as filename
+		err = os.WriteFile(filename, png, 0644)
+		if err != nil {
+			panic(err)
+		}
+		fmt.Printf("✅ Generated avatar for %s -> %s\n", user, filename)
+	}
+	
+	fmt.Println("\n🎉 All avatars generated successfully!")
+	fmt.Println("Check the generated SVG and PNG files in the current directory.")
+}