initial file store

internal/file_store.go

@@ -0,0 +1,29 @@
+package internal
+
+import (
+	"fmt"
+	"os"
+)
+
+// FileStore loads and saves the state into a file
+type FileStore struct {
+	file *os.File
+}
+
+func NewFileStore(filename string) (*FileStore, error) {
+	f, err := os.Open(filename)
+	if err != nil {
+		return nil, err
+	}
+	return &FileStore{
+		file: f,
+	}, nil
+}
+
+func (fs *FileStore) Load() (map[string]*FillerQueue, error) {
+	return nil, fmt.Errorf("not implemented")
+}
+
+func (fs *FileStore) Save(map[string]*FillerQueue) error {
+	return fmt.Errorf("not implemented")
+}