feat: implement initial configuration and gstreamer pipeline setup

internal/config/confgi.go

@@ -0,0 +1,32 @@
+package config
+
+import "github.com/ilyakaznacheev/cleanenv"
+
+type Config struct {
+	Debug    bool     `toml:"debug" env:"DEBUG" env-default:"false"`
+	Pipeline Pipeline `toml:"pipeline"`
+	Outputs  []Output `toml:"outputs"`
+}
+
+type Output struct {
+	Type   string `toml:"type" env:"OUTPUT_TYPE"`
+	Target string `toml:"target" env:"OUTPUT_TARGET"`
+}
+
+type Pipeline struct {
+	Width  int `toml:"width" env:"PIPELINE_WIDTH" env-default:"50"`
+	Height int `toml:"height" env:"PIPELINE_HEIGHT" env-default:"50"`
+}
+
+func LoadConfig(path string) (*Config, error) {
+	var cfg Config
+	err := cleanenv.ReadConfig(path, &cfg)
+	if err != nil {
+		// It's often useful to ignore "file not found" errors if you want
+		// to allow configuration purely via environment variables.
+		// However, the specific behavior depends on the application's needs.
+		// For now, we'll return the error.
+		return nil, err
+	}
+	return &cfg, nil
+}