const Model = require("flitter-orm/src/model/Model");
const { ObjectId } = require("mongodb");
const uuid = require('uuid/v4');

/*
 * Page Model
 * -------------------------------------------------------------
 * Put some description here!
 */
class Page extends Model {
	static get services() {
		return [...super.services, "models"];
	}
	static get schema() {
		// Return a flitter-orm schema here.
		return {
			UUID: {type: String, default: () => uuid()},
			Name: String,
			OrgUserId: ObjectId,
			IsPublic: {type: Boolean, default: true},
			IsVisibleInMenu: {type: Boolean, default: true},
			ParentId: String,
			NodeIds: [String],
			CreatedAt: {type: Date, default: () => new Date},
			UpdatedAt: {type: Date, default: () => new Date},
			CreatedUserId: {type: String},
			UpdateUserId: {type: String},
			ChildPageIds: [String],
		};
	}

	// Static and instance methods can go here
	get user() {
		const User = this.models.get("auth:User");
		return this.belongs_to_one(User, "OrgUserId", "_id");
	}

	get nodes() {
		const Node = this.models.get("api:Node");
		return this.has_many(Node, "NodeIds", "UUID");
	}
	get childPages() {
		const Page = this.models.get("api:Page")
		return this.has_many(Page, "ChildPageIds", "UUID")
	}

	get parent() {
		const Parent = this.models.get("api:Page")
		return this.belongs_to_one(Parent, "ParentId", "UUID")
	}

	accessible_by(user, mode = 'view') {
		return user.can(`page:${this.UUID}:${mode}`)
	}

}

module.exports = exports = Page;