feat(plugins): major improvement in plugins golang code

pkg/plugins/frontend_plugin.go

@@ -0,0 +1,47 @@
+package plugins
+
+import (
+	"net/url"
+	"path"
+)
+
+type FrontendPluginBase struct {
+	PluginBase
+	Module     string `json:"module"`
+	StaticRoot string `json:"staticRoot"`
+}
+
+func (fp *FrontendPluginBase) initFrontendPlugin() {
+	if fp.StaticRoot != "" {
+		StaticRoutes = append(StaticRoutes, &PluginStaticRoute{
+			Directory: fp.StaticRoot,
+			PluginId:  fp.Id,
+		})
+	}
+
+	fp.Info.Logos.Small = evalRelativePluginUrlPath(fp.Info.Logos.Small, fp.Id)
+	fp.Info.Logos.Large = evalRelativePluginUrlPath(fp.Info.Logos.Large, fp.Id)
+
+	fp.handleModuleDefaults()
+}
+
+func (fp *FrontendPluginBase) handleModuleDefaults() {
+	if fp.Module != "" {
+		return
+	}
+
+	if fp.StaticRoot != "" {
+		fp.Module = path.Join("plugins", fp.Type, fp.Id, "module")
+		return
+	}
+
+	fp.Module = path.Join("app/plugins", fp.Type, fp.Id, "module")
+}
+
+func evalRelativePluginUrlPath(pathStr string, pluginId string) string {
+	u, _ := url.Parse(pathStr)
+	if u.IsAbs() {
+		return pathStr
+	}
+	return path.Join("public/plugins", pluginId, pathStr)
+}