Initial commit

internal/output.go

@@ -0,0 +1,104 @@
+package internal
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/fatih/color"
+)
+
+// ColoredOutput provides methods for colored terminal output.
+type ColoredOutput struct {
+	NoColor bool
+	Quiet   bool
+}
+
+// NewColoredOutput creates a new colored output instance.
+func NewColoredOutput(quiet bool) *ColoredOutput {
+	return &ColoredOutput{
+		NoColor: color.NoColor || os.Getenv("NO_COLOR") != "",
+		Quiet:   quiet,
+	}
+}
+
+// Success prints a success message in green.
+func (co *ColoredOutput) Success(format string, args ...any) {
+	if co.Quiet {
+		return
+	}
+	if co.NoColor {
+		fmt.Printf("✅ "+format+"\n", args...)
+	} else {
+		color.Green("✅ "+format, args...)
+	}
+}
+
+// Error prints an error message in red to stderr.
+func (co *ColoredOutput) Error(format string, args ...any) {
+	if co.NoColor {
+		fmt.Fprintf(os.Stderr, "❌ "+format+"\n", args...)
+	} else {
+		_, _ = color.New(color.FgRed).Fprintf(os.Stderr, "❌ "+format+"\n", args...)
+	}
+}
+
+// Warning prints a warning message in yellow.
+func (co *ColoredOutput) Warning(format string, args ...any) {
+	if co.Quiet {
+		return
+	}
+	if co.NoColor {
+		fmt.Printf("⚠️  "+format+"\n", args...)
+	} else {
+		color.Yellow("⚠️  "+format, args...)
+	}
+}
+
+// Info prints an info message in blue.
+func (co *ColoredOutput) Info(format string, args ...any) {
+	if co.Quiet {
+		return
+	}
+	if co.NoColor {
+		fmt.Printf("ℹ️  "+format+"\n", args...)
+	} else {
+		color.Blue("ℹ️  "+format, args...)
+	}
+}
+
+// Progress prints a progress message in cyan.
+func (co *ColoredOutput) Progress(format string, args ...any) {
+	if co.Quiet {
+		return
+	}
+	if co.NoColor {
+		fmt.Printf("🔄 "+format+"\n", args...)
+	} else {
+		color.Cyan("🔄 "+format, args...)
+	}
+}
+
+// Bold prints text in bold.
+func (co *ColoredOutput) Bold(format string, args ...any) {
+	if co.Quiet {
+		return
+	}
+	if co.NoColor {
+		fmt.Printf(format+"\n", args...)
+	} else {
+		_, _ = color.New(color.Bold).Printf(format+"\n", args...)
+	}
+}
+
+// Printf prints without color formatting (respects quiet mode).
+func (co *ColoredOutput) Printf(format string, args ...any) {
+	if co.Quiet {
+		return
+	}
+	fmt.Printf(format, args...)
+}
+
+// Fprintf prints to specified writer without color formatting.
+func (co *ColoredOutput) Fprintf(w *os.File, format string, args ...any) {
+	_, _ = fmt.Fprintf(w, format, args...)
+}