Add support for configs

internal/config/load.go

@@ -0,0 +1,34 @@
+package config
+
+import (
+	"fmt"
+	"os"
+
+	"gopkg.in/yaml.v3"
+)
+
+type ConfigInterface interface {
+	GetVersion() string
+	GetDirectories() []string
+	MeetsConditions(directory, fileID, fileName string) bool
+}
+
+func LoadZurgConfig(filename string) (ConfigInterface, error) {
+	content, err := os.ReadFile(filename)
+	if err != nil {
+		return nil, err
+	}
+
+	var initialConfig ZurgConfig
+	if err := yaml.Unmarshal(content, &initialConfig); err != nil {
+		return nil, err
+	}
+
+	switch initialConfig.Version {
+	case "v1":
+		return loadV1Config(content)
+
+	default:
+		return nil, fmt.Errorf("invalid config version: %s", initialConfig.Version)
+	}
+}