Initial commit

Proof-of-concept implementation. Bugs will occur.

internal/domains/filesystem/filesystem.go

@@ -0,0 +1,66 @@
+package filesystem
+
+import (
+	"fmt"
+
+	"source.hodakov.me/hdkv/faketunes/internal/application"
+	"source.hodakov.me/hdkv/faketunes/internal/domains"
+)
+
+var (
+	_ domains.Filesystem = new(FS)
+	_ domains.Domain     = new(FS)
+)
+
+type FS struct {
+	app *application.App
+
+	cacher domains.Cacher
+
+	sourceDir      string
+	destinationDir string
+	cacheDir       string
+	metadataDir    string
+
+	inodeCounter uint64
+}
+
+func New(app *application.App) *FS {
+	return &FS{
+		app: app,
+
+		sourceDir:      app.Config().Paths.Source,
+		destinationDir: app.Config().Paths.Destination + "/Music",
+		cacheDir:       app.Config().Paths.Destination + "/.cache",
+		metadataDir:    app.Config().Paths.Destination + "/.metadata",
+
+		inodeCounter: 1000, // Start counting inodes after the reserved ones
+	}
+}
+
+func (f *FS) ConnectDependencies() error {
+	cacher, ok := f.app.RetrieveDomain(domains.CacherName).(domains.Cacher)
+	if !ok {
+		return fmt.Errorf(
+			"%w: %w (%s)", ErrFilesystem, ErrConnectDependencies,
+			"cacher domain interface conversion failed",
+		)
+	}
+
+	f.cacher = cacher
+
+	return nil
+}
+
+func (f *FS) Start() error {
+	err := f.prepareDirectories()
+	if err != nil {
+		return fmt.Errorf("%w: %w (%w)", ErrFilesystem, ErrFailedToPrepareDirectories, err)
+	}
+
+	go func() {
+		f.mount()
+	}()
+
+	return nil
+}