removed app, reorganized logic into modules

backend/frontendbindings/frontendbindings.go

@@ -0,0 +1,38 @@
+package frontendbindings
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/wailsapp/wails/v2/pkg/runtime"
+)
+
+// FrontendBindings contain any Go functions that are specific to the frontend only and need to be bound
+type FrontendBindings struct {
+	ctx context.Context
+}
+
+func NewFrontendBindings() (*FrontendBindings, error) {
+	return &FrontendBindings{}, nil
+}
+
+func (fe *FrontendBindings) Init(ctx context.Context) error {
+	fe.ctx = ctx
+	return nil
+}
+
+// Open a directory picker
+func (fe *FrontendBindings) DirectoryPicker() (string, error) {
+	runtime.LogInfo(fe.ctx, "selecting a directory")
+	dir, err := runtime.OpenDirectoryDialog(
+		fe.ctx,
+		runtime.OpenDialogOptions{})
+	if err != nil {
+		return "", fmt.Errorf("could not open directory dialog\n%w", err)
+	}
+	if dir == "" {
+		return "No Library Directory Selected", nil
+	}
+
+	return dir, nil
+}

backend/library/library.go

@@ -3,32 +3,42 @@ package library
 import (
 	"context"
 	"fmt"
-	"yellowjacket/backend/logging"
-
-	"github.com/wailsapp/wails/v2/pkg/runtime"
 )
 
 type Config struct {
 	DirectoryPath string
 }
 
+func (c *Config) validate() error {
+	return nil
+}
+
 var DefaultConfig *Config = &Config{
 	DirectoryPath: "",
 }
 
 type Library struct {
 	ctx  context.Context
-	Conf *Config
+	conf *Config
 }
 
-func GetNewLibrary(ctx context.Context, conf *Config) (*Library, error) {
+func NewLibrary(conf *Config) (*Library, error) {
 	if conf == nil {
-		runtime.LogInfo(ctx, fmt.Sprintf("library config is nil, using default config: %s", logging.PrettyJSON(DefaultConfig)))
-		conf = DefaultConfig
+		return nil, fmt.Errorf("nil config for library")
+	}
+	if err := conf.validate(); err != nil {
+		return nil, fmt.Errorf("invalid library config %s\n%w", conf, err)
 	}
-	runtime.LogInfo(ctx, fmt.Sprintf("creating new library with config: %#v", conf))
 	return &Library{
-		ctx:  ctx,
-		Conf: conf,
+		conf: conf,
 	}, nil
 }
+
+func (l *Library) Init(ctx context.Context) error {
+	l.ctx = ctx
+	return nil
+}
+
+func (l *Library) GetDir() (string, error) {
+	return l.conf.DirectoryPath, nil
+}

backend/player/player.go

@@ -23,8 +23,8 @@ const (
 	Stopped
 )
 
-func NewPlayer() *Player {
-	return &Player{}
+func NewPlayer() (*Player, error) {
+	return &Player{}, nil
 }
 
 func (p *Player) Init(ctx context.Context) {