feat(sidebar): menu separated from sidebar, menu merged with routes

src/app/theme/components/baMenu/baMenu.service.ts

@@ -0,0 +1,101 @@
+import {Injectable} from '@angular/core';
+import {Router, UrlTree, RouterConfig} from '@angular/router';
+
+@Injectable()
+export class BaMenuService {
+
+  constructor(private _router:Router) {
+  }
+
+  public convertRoutesToMenus(routes:RouterConfig):any[] {
+    let items = this._convertArrayToItems(routes);
+    return this._skipEmpty(items);
+  }
+
+  public selectMenuItem(menuItems:any[]):any[] {
+    let items = [];
+    menuItems.forEach((item) => {
+      this._selectItem(item);
+
+      if (item.children && item.children.length > 0) {
+        item.children = this.selectMenuItem(item.children);
+      }
+      items.push(item);
+    });
+    return items;
+  }
+
+  protected _skipEmpty(items:any[]):any[] {
+    let menu = [];
+    items.forEach((item) => {
+      let menuItem;
+      if (item.skip) {
+        if (item.children && item.children.length > 0) {
+          menuItem = item.children;
+        }
+      } else {
+        menuItem = item;
+      }
+
+      if (menuItem) {
+        menu.push(menuItem);
+      }
+    });
+
+    return [].concat.apply([], menu);
+  }
+
+  protected _convertArrayToItems(routes:any[], parent?:any):any[] {
+    let items = [];
+    routes.forEach((route) => {
+      items.push(this._convertObjectToItem(route, parent));
+    });
+    return items;
+  }
+
+  protected _convertObjectToItem(object, parent?:any):any {
+    let item:any = {};
+    if (object.data && object.data.menu) {
+      // this is a menu object
+      item = object.data.menu;
+      item.route = object;
+      delete item.route.data.menu;
+    } else {
+      item.route = object;
+      item.skip = true;
+    }
+
+    // we have to collect all pathes to correctly build the url then
+    item.route.paths = parent && parent.route && parent.route.paths ? parent.route.paths.slice(0) : [];
+    item.route.paths.push(item.route.path);
+
+    if (object.children && object.children.length > 0) {
+      item.children = this._convertArrayToItems(object.children, item);
+    }
+
+    let prepared = this._prepareItem(item);
+
+    // if current item is selected or expanded - then parent is expanded too
+    if ((prepared.selected || prepared.expanded) && parent) {
+      parent.expanded = true;
+    }
+
+    return prepared;
+  }
+
+  protected _prepareItem(object:any):any {
+    if (!object.disabled && !object.skip) {
+
+      let itemUrl = this._router.serializeUrl(this._router.createUrlTree(object.route.paths));
+      object.url = object.url ? object.url : '/#' + itemUrl;
+      return this._selectItem(object);
+    }
+
+    return object;
+  }
+
+  protected _selectItem(object:any):any {
+    object.selected = object.url == ('/#' + this._router.url);
+    return object;
+  }
+}