initial commit

config/config.go

@@ -0,0 +1,65 @@
+package config
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/BurntSushi/toml"
+)
+
+type Config struct {
+	OpenRGB OpenRGBConfig `toml:"openrgb"`
+	Relay   RelayConfig   `toml:"relay"`
+	Monitor MonitorConfig `toml:"monitor"`
+}
+
+type OpenRGBConfig struct {
+	Host    string `toml:"host"`
+	Port    int    `toml:"port"`
+	Enabled bool   `toml:"enabled"`
+}
+
+type RelayConfig struct {
+	Device  string `toml:"device"`
+	Channel int    `toml:"channel"`
+	Baud    int    `toml:"baud"`
+	Enabled bool   `toml:"enabled"`
+}
+
+type MonitorConfig struct {
+	// Which D-Bus signals to listen on. Options: "screensaver", "logind", "all"
+	Method string `toml:"method"`
+}
+
+func Load(path string) (*Config, error) {
+	cfg := &Config{
+		OpenRGB: OpenRGBConfig{
+			Host:    "localhost",
+			Port:    6742,
+			Enabled: true,
+		},
+		Relay: RelayConfig{
+			Device:  "/dev/ttyUSB0",
+			Channel: 1,
+			Baud:    9600,
+			Enabled: true,
+		},
+		Monitor: MonitorConfig{
+			Method: "all",
+		},
+	}
+
+	data, err := os.ReadFile(path)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return cfg, nil
+		}
+		return nil, fmt.Errorf("read config: %w", err)
+	}
+
+	if err := toml.Unmarshal(data, cfg); err != nil {
+		return nil, fmt.Errorf("parse config: %w", err)
+	}
+
+	return cfg, nil
+}