init

internal/config/config.go

@@ -0,0 +1,57 @@
+// Package config manages the application-level configuration file
+// (config.yml), distinct from per-profile server settings stored in
+// the database.
+package config
+
+import (
+	"os"
+
+	"lmvpn/internal/paths"
+
+	"gopkg.in/yaml.v3"
+)
+
+// AppConfig holds application-wide settings.
+type AppConfig struct {
+	AutoConnect      bool   `yaml:"auto_connect"`
+	MinimizeToTray   bool   `yaml:"minimize_to_tray"`
+	CloseToTray      bool   `yaml:"close_to_tray"`
+	DefaultProfileID int64  `yaml:"default_profile_id"`
+	LogLevel         string `yaml:"log_level"` // debug, info, warn, error
+}
+
+// Default returns the default configuration.
+func Default() AppConfig {
+	return AppConfig{
+		AutoConnect:      false,
+		MinimizeToTray:   true,
+		CloseToTray:      true,
+		DefaultProfileID: 0,
+		LogLevel:         "info",
+	}
+}
+
+// Load reads the config file, returning defaults if it does not exist.
+func Load() (AppConfig, error) {
+	cfg := Default()
+	data, err := os.ReadFile(paths.ConfigPath())
+	if err != nil {
+		if os.IsNotExist(err) {
+			return cfg, nil
+		}
+		return cfg, err
+	}
+	if err := yaml.Unmarshal(data, &cfg); err != nil {
+		return Default(), err
+	}
+	return cfg, nil
+}
+
+// Save writes the config file with 0600 permissions.
+func Save(cfg AppConfig) error {
+	data, err := yaml.Marshal(cfg)
+	if err != nil {
+		return err
+	}
+	return os.WriteFile(paths.ConfigPath(), data, 0o600)
+}