update config (#32)

config/config.go

@@ -31,8 +31,15 @@ const (
 	ExpirationKey    ConfKey = "expiration"
 )
 
-func Load() (*Config, error) {
-	conf := new(Config)
+func newConfig() *Config {
+	return &Config{
+		tokenViper:  viper.New(),
+		clientViper: viper.New(),
+	}
+}
+
+func New() (*Config, error) {
+	conf := newConfig()
 
 	configPath, err := getConfigPath()
 	if err != nil {
@@ -50,13 +57,6 @@ func Load() (*Config, error) {
 		return nil, err
 	}
 
-	if err := conf.tokenViper.ReadInConfig(); err != nil {
-		return nil, fmt.Errorf("fail to read token viper: %v", err)
-	}
-	if err := conf.clientViper.ReadInConfig(); err != nil {
-		return nil, fmt.Errorf("fail to read client viper: %v", err)
-	}
-
 	return conf, nil
 }
 
@@ -97,6 +97,17 @@ func setupViper(v *viper.Viper, configPath, configName, configType string) error
 	return nil
 }
 
+func (c *Config) Load() error {
+	if err := c.tokenViper.ReadInConfig(); err != nil {
+		return fmt.Errorf("fail to read token viper: %v", err)
+	}
+	if err := c.clientViper.ReadInConfig(); err != nil {
+		return fmt.Errorf("fail to read client viper: %v", err)
+	}
+
+	return nil
+}
+
 func (c *Config) SetToken(token *oauth2.Token) error {
 	c.tokenViper.Set(string(AccessTokenKey), token.AccessToken)
 	c.tokenViper.Set(string(RefreshTokenKey), token.RefreshToken)
@@ -143,3 +154,7 @@ func (c *Config) IsClientValid() bool {
 
 	return spotifyID != "" && spotifySecret != "" && openAIApiKey != ""
 }
+
+func (c *Config) GetClientValue(key ConfKey) string {
+	return c.clientViper.GetString(string(key))
+}