First working version

internal/prompt/prompt.go

@@ -0,0 +1,186 @@
+package prompt
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+
+	"github.com/fatih/color"
+)
+
+var (
+	cyan   = color.New(color.FgCyan).SprintFunc()
+	green  = color.New(color.FgGreen).SprintFunc()
+	yellow = color.New(color.FgYellow).SprintFunc()
+	red    = color.New(color.FgRed).SprintFunc()
+)
+
+// Reader interface for testing
+type Reader interface {
+	ReadString(delim byte) (string, error)
+}
+
+// PromptString prompts for a string value
+func PromptString(label string, defaultValue string, required bool) (string, error) {
+	reader := bufio.NewReader(os.Stdin)
+	return promptStringWithReader(reader, label, defaultValue, required)
+}
+
+func promptStringWithReader(reader Reader, label string, defaultValue string, required bool) (string, error) {
+	for {
+		prompt := fmt.Sprintf("%s", cyan(label))
+		if defaultValue != "" {
+			prompt += fmt.Sprintf(" [%s]", green(defaultValue))
+		}
+		prompt += ": "
+
+		fmt.Print(prompt)
+
+		input, err := reader.ReadString('\n')
+		if err != nil {
+			return "", err
+		}
+
+		input = strings.TrimSpace(input)
+
+		// If input is empty, use default value
+		if input == "" {
+			if defaultValue != "" {
+				// Echo the selected default value
+				fullPrompt := fmt.Sprintf("%s [%s]: %s", cyan(label), green(defaultValue), defaultValue)
+				fmt.Printf("\033[1A\r%s\n", fullPrompt)
+				return defaultValue, nil
+			}
+			if required {
+				fmt.Println(red("✗ This field is required"))
+				continue
+			}
+			return "", nil
+		}
+
+		return input, nil
+	}
+}
+
+// PromptInt prompts for an integer value
+func PromptInt(label string, defaultValue int, required bool) (int, error) {
+	reader := bufio.NewReader(os.Stdin)
+	return promptIntWithReader(reader, label, defaultValue, required)
+}
+
+func promptIntWithReader(reader Reader, label string, defaultValue int, required bool) (int, error) {
+	for {
+		defaultStr := ""
+		if defaultValue != 0 {
+			defaultStr = strconv.Itoa(defaultValue)
+		}
+
+		prompt := fmt.Sprintf("%s", cyan(label))
+		if defaultStr != "" {
+			prompt += fmt.Sprintf(" [%s]", green(defaultStr))
+		}
+		prompt += ": "
+
+		fmt.Print(prompt)
+
+		input, err := reader.ReadString('\n')
+		if err != nil {
+			return 0, err
+		}
+
+		input = strings.TrimSpace(input)
+
+		// If input is empty, use default value
+		if input == "" {
+			if defaultValue != 0 {
+				// Echo the selected default value
+				fullPrompt := fmt.Sprintf("%s [%s]: %s", cyan(label), green(defaultStr), defaultStr)
+				fmt.Printf("\033[1A\r%s\n", fullPrompt)
+				return defaultValue, nil
+			}
+			if required {
+				fmt.Println(red("✗ This field is required"))
+				continue
+			}
+			return 0, nil
+		}
+
+		// Parse integer
+		value, err := strconv.Atoi(input)
+		if err != nil {
+			fmt.Println(red("✗ Please enter a valid number"))
+			continue
+		}
+
+		return value, nil
+	}
+}
+
+// ValidateDirectory checks if a directory exists or can be created
+func ValidateDirectory(path string) error {
+	// Check if path exists
+	info, err := os.Stat(path)
+	if err == nil {
+		// Path exists, check if it's a directory
+		if !info.IsDir() {
+			return fmt.Errorf("path exists but is not a directory")
+		}
+		return nil
+	}
+
+	// Path doesn't exist, try to create it
+	if os.IsNotExist(err) {
+		if err := os.MkdirAll(path, 0755); err != nil {
+			return fmt.Errorf("cannot create directory: %w", err)
+		}
+		return nil
+	}
+
+	return err
+}
+
+// PromptDirectory prompts for a directory path and validates it
+func PromptDirectory(label string, defaultValue string, required bool) (string, error) {
+	for {
+		path, err := PromptString(label, defaultValue, required)
+		if err != nil {
+			return "", err
+		}
+
+		if path == "" && !required {
+			return "", nil
+		}
+
+		// Validate directory
+		if err := ValidateDirectory(path); err != nil {
+			fmt.Printf("%s %s\n", red("✗"), err.Error())
+			continue
+		}
+
+		return path, nil
+	}
+}
+
+// PrintHeader prints a colored header
+func PrintHeader(text string) {
+	header := color.New(color.FgCyan, color.Bold)
+	header.Println("\n" + text)
+	header.Println(strings.Repeat("=", len(text)))
+}
+
+// PrintSuccess prints a success message
+func PrintSuccess(text string) {
+	fmt.Printf("%s %s\n", green("✓"), text)
+}
+
+// PrintError prints an error message
+func PrintError(text string) {
+	fmt.Printf("%s %s\n", red("✗"), text)
+}
+
+// PrintInfo prints an info message
+func PrintInfo(text string) {
+	fmt.Printf("%s %s\n", yellow("ℹ"), text)
+}