import { createItem, getAllItems, getItem, updateItem } from "../../api/client";
import moment from "moment";

const PATH = "news";
const DATE_DB = "DD.MM.YYYY";
const DATE_UI = "YYYY-MM-DD";

export default class FormModel {
    constructor() {
        this.element = {};
        this.tegs = [];
    }

    async getTegs() {
        this.tegs = [];
        this.tegs = await getAllItems("tegs");
    }

    async get(id) {
        if (!id) {
            throw new Error("Element id is not defined!");
        }
        this.element = await getItem(PATH, id);
    }

    async create() {
        if (!this.element || Object.keys(this.element).length === 0) {
            throw new Error("Item is null or empty!");
        }
        this.element = await createItem(PATH, this.element);
    }

    async update() {
        if (!this.element) {
            throw new Error("Item is null or empty!");
        }
        this.element = await updateItem(PATH, this.element.id, this.element);
    }

    getValue(attribute) {
        if (attribute !== "bdate") {
            return this.element[attribute] || "";
        }
        return moment(this.element[attribute], DATE_DB).format(DATE_UI);
    }

    setValue(attribute, value) {
        if (attribute !== "bdate") {
            this.element[attribute] = value;
        }
        else {
            this.element[attribute] = moment(value, DATE_UI).format(DATE_DB);
        }
    }
}