refactor: change the way the viper config is stored and add helper functions

src/cmd/utils/config.go

@@ -40,10 +40,11 @@ func init() {
 	}
 }
 
+var v *viper.Viper
+
 func LoadConfig() (*Config, error) {
 	// TODO: create if and give param as default config location
-
-	v := viper.New()
+	v = viper.New()
 	v.SetConfigName(configName)
 	v.SetConfigType(configType)
 
@@ -92,7 +93,7 @@ func (c *Config) SetGlobalConfig() {
 	}
 }
 
-func handleMissingConfig(v *viper.Viper) error {
+func HandleMissingConfig() error {
 	fmt.Println("Config file not found. Would you like to create one? (y/n)")
 	var response string
 	if _, err := fmt.Scanln(&response); err != nil {
@@ -104,10 +105,48 @@ func handleMissingConfig(v *viper.Viper) error {
 		return fmt.Errorf("config file not found")
 	}
 
-	return createConfig(v)
+	if v == nil {
+		v = viper.New()
+
+		v.SetConfigName(configName)
+		v.SetConfigType(configType)
+	}
+
+	return CreateConfig()
 }
 
-func createConfig(v *viper.Viper) error {
+func CheckConfig() bool {
+	if v == nil {
+		return false
+	} else if v.ConfigFileUsed() == "" {
+		return false
+	} else {
+		return true
+	}
+}
+
+func GetConfigFilePath() string {
+	if v == nil || v.ConfigFileUsed() == "" {
+		return ""
+	}
+	return v.ConfigFileUsed()
+}
+
+func RemoveConfig() error {
+	if v == nil || v.ConfigFileUsed() == "" {
+		return fmt.Errorf("no config file to remove")
+	}
+
+	configPath := v.ConfigFileUsed()
+	if err := os.Remove(configPath); err != nil {
+		return fmt.Errorf("failed to remove config file: %w", err)
+	}
+
+	fmt.Printf("Config file removed: %s\n", configPath)
+	return nil
+}
+
+func CreateConfig() error {
 	fmt.Println("Where would you like to create the config file?")
 	for i, path := range defaultConfigLocations {
 		fmt.Printf("%d. %s\n", i, path)