Add some sort of addon handling

main.go

@@ -2,6 +2,9 @@ package main
 
 import (
 	"embed"
+	"fmt"
+	"log"
+	"net/url"
 
 	"github.com/wailsapp/wails/v2"
 	"github.com/wailsapp/wails/v2/pkg/options"
@@ -11,7 +14,35 @@ import (
 //go:embed all:frontend/dist
 var assets embed.FS
 
+type Addon struct {
+	Name string
+	URL  *url.URL
+}
+
+func NewAddon(name, aurl string) *Addon {
+	a := &Addon{Name: name}
+	var err error
+	a.URL, err = url.Parse(aurl)
+	if err != nil {
+		fmt.Errorf("invalid url: %s", aurl)
+		return nil
+	}
+	return a
+}
+
+var addons = []*Addon{
+	NewAddon("Channeler", "https://git.site.quack-lab.dev/dave/wow_channeler"),
+}
+
+func (a *Addon) GetToc() *url.URL {
+	return a.URL.JoinPath(a.Name + ".toc")
+}
+
 func main() {
+	for _, addon := range addons {
+		log.Printf("%#v", addon.GetToc())
+	}
+	return
 	// Create an instance of the app structure
 	app := NewApp()