const Controller = require('libflitter/controller/Controller')

/*
 * Menu Controller
 * -------------------------------------------------------------
 * Put some description here!
 */
class Menu extends Controller {
    static get services() {
        return [...super.services, 'models']
    }

    async get_items(req, res) {
        const root_page = await req.user.get_root_page()
        const nodes = await this._build_menu_object(root_page)
        return res.api(nodes)
    }

    async _build_menu_object(parent_node, arr= []) {
        const children = await this.models.get('api:Page').find({UUID: {$in: parent_node.ChildPageIds}})
        if ( children ) {
            for ( const child of children ) {
                arr.push({
                    id: child.UUID,
                    name: child.Name,
                    children: await this._build_menu_object(child),
                })
            }
        }

        return arr
    }

}

module.exports = exports = Menu