feat: improve config file handling

- add default config file
- read passed config file or use default if none provided
- ensure cli parameters always supersede config file settings
- add function to check if a file exists

🤖

cmd/client/main.go

@@ -15,6 +15,8 @@ import (
 var (
 	config ChronoTomato.Config
 
+	defaultConfigFile = "~/.config/ChronoTomato.yml"
+
 	parameter_url      = flag.String("url", "", "GoTomato Server URL (eg ws://localhost:8080/ws)")
 	parameter_password = flag.String("password", "", "Control password for pomodoro session")
 	configfile         = flag.String("config", "", "Path to config file")
@@ -26,13 +28,21 @@ func Start() {
 	cursor.Hide()
 	defer cursor.Show()
 
-	// read cli parameters if no config file passed
-	if *configfile == "" {
-		config.URL = *parameter_url
-		config.Password = *parameter_password
-	} else {
-		// otherwise read config
+	// read passed config file or try to use default config
+	if *configfile != "" {
 		config = helper.ParseConfig(*configfile)
+	} else {
+		if helper.FileExists(defaultConfigFile) {
+			config = helper.ParseConfig(defaultConfigFile)
+		}
+	}
+
+	// cli parameters always supersede config file
+	if *parameter_url != "" {
+		config.URL = *parameter_url
+	}
+	if *parameter_password != "" {
+		config.Password = *parameter_password
 	}
 
 	client := websocket.Connect(config.URL)