add: add encoder, mover, watcher, and logger packages

internal/mover/mover.go

@@ -0,0 +1,42 @@
+package mover
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+)
+
+func MoveToOutput(input, outputDir string) error {
+	if err := os.MkdirAll(outputDir, 0755); err != nil {
+		return fmt.Errorf("creating output dir: %w", err)
+	}
+	filename := filepath.Base(input)
+	dest := filepath.Join(outputDir, filename)
+	return os.Rename(input, dest)
+}
+
+func MoveToFailed(input, failedDir string) error {
+	if err := os.MkdirAll(failedDir, 0755); err != nil {
+		return fmt.Errorf("creating failed dir: %w", err)
+	}
+	filename := filepath.Base(input)
+	dest := filepath.Join(failedDir, filename)
+	return os.Rename(input, dest)
+}
+
+func MoveToOriginals(input, originalsDir string) error {
+	if err := os.MkdirAll(originalsDir, 0755); err != nil {
+		return fmt.Errorf("creating originals dir: %w", err)
+	}
+	filename := filepath.Base(input)
+	dest := filepath.Join(originalsDir, filename)
+	return os.Rename(input, dest)
+}
+
+func Delete(path string) error {
+	return os.Remove(path)
+}
+
+func Rename(source, dest string) error {
+	return os.Rename(source, dest)
+}