Full application rewrite

application/application.go

@@ -0,0 +1,64 @@
+package application
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"os"
+	"sync"
+
+	"github.com/derfenix/photocatalog/internal/organizer"
+	"github.com/derfenix/photocatalog/internal/organizer/modes"
+)
+
+type Application struct {
+	config Config
+}
+
+func NewApplication(config Config) (Application, error) {
+	if err := config.Validate(); err != nil {
+		return Application{}, fmt.Errorf("invalid config: %w", err)
+	}
+
+	return Application{config: config}, nil
+}
+
+func (a *Application) Start(ctx context.Context, wg *sync.WaitGroup) error {
+	var mode organizer.Mode
+
+	switch a.config.Mode {
+	case ModeCopy:
+		mode = modes.Copy{}
+	case ModeHardlink:
+		mode = modes.HardLink{}
+	case ModeMove:
+		mode = modes.Move{}
+	case ModeSymlink:
+		mode = modes.SymLink{}
+	default:
+		mode = modes.HardLink{}
+	}
+
+	org := organizer.NewOrganizer(mode, a.config.SourceDir, a.config.TargetDir).
+		WithDirMode(os.FileMode(a.config.DirMode)).
+		WithFileMode(os.FileMode(a.config.FileMode)).
+		WithErrLogger(func(err error) {
+			log.Println(err)
+		})
+
+	if a.config.Overwrite {
+		org = org.WithOverwrite()
+	}
+
+	if err := org.FullSync(ctx); err != nil {
+		return fmt.Errorf("full sync: %w", err)
+	}
+
+	if a.config.Watch {
+		if err := org.Watch(ctx, wg); err != nil {
+			return fmt.Errorf("initialize watch: %w", err)
+		}
+	}
+
+	return nil
+}

application/config.go

@@ -0,0 +1,41 @@
+package application
+
+import (
+	"fmt"
+	"slices"
+)
+
+type Mode string
+
+const (
+	ModeCopy     Mode = "copy"
+	ModeHardlink Mode = "hardlink"
+	ModeSymlink  Mode = "symlink"
+	ModeMove     Mode = "move"
+)
+
+type Config struct {
+	SourceDir string
+	TargetDir string
+	Mode      Mode
+	Overwrite bool
+	DirMode   uint64
+	FileMode  uint64
+	Watch     bool
+}
+
+func (c *Config) Validate() error {
+	if c.SourceDir == "" {
+		return fmt.Errorf("source dir is required")
+	}
+
+	if c.TargetDir == "" {
+		return fmt.Errorf("target dir is required")
+	}
+
+	if !slices.Contains([]Mode{ModeHardlink, ModeSymlink, ModeMove, ModeSymlink}, c.Mode) {
+		return fmt.Errorf("invalid mode %s", c.Mode)
+	}
+
+	return nil
+}