Implement picking game dir

app.go

@@ -2,6 +2,8 @@ package main
 
 import (
 	"context"
+	"os"
+	"path/filepath"
 
 	"github.com/wailsapp/wails/v2/pkg/runtime"
 )
@@ -90,12 +92,36 @@ func (a *App) GetGamePath() (res StringResponse) {
 
 func (a *App) SetGamePath(path string) (res StringResponse) {
 	settings.GamePath = path
-	SaveSettings(*settings)
-	res.Data = path
+	err := SaveSettings(*settings)
+	if err != nil {
+		res.Error = err.Error()
+	}
 	return res
 }
 
 func (a *App) IsGamePathValid() (res BoolResponse) {
-	res.Data = settings.GamePath != ""
+	if settings.GamePath == "" {
+		res.Data = false
+		return res
+	}
+	// Check if the path exists and contains the Interface/AddOns directory
+	addonPath := filepath.Join(settings.GamePath, "Interface", "AddOns")
+	if _, err := os.Stat(addonPath); os.IsNotExist(err) {
+		res.Data = false
+		return res
+	}
+	res.Data = true
 	return res
 }
+
+func (a *App) SelectDirectory() (res StringResponse) {
+	path, err := runtime.OpenDirectoryDialog(a.ctx, runtime.OpenDialogOptions{
+		Title: "Select World of Warcraft Directory",
+	})
+	if err != nil {
+		res.Error = err.Error()
+		return
+	}
+	res.Data = path
+	return
+}