import {
    shortcut,
    Widget,
    extend,
    emptyFn,
    createWidget,
    Controller,
    AbsoluteLayout
} from "@/core";
import { MultiSelectSearchLoader } from "./multiselect.search.loader";

@shortcut()
export class MultiSelectSearchPane extends Widget {
    static xtype = "bi.multi_select_search_pane";

    constants = { height: 24, lgap: 10, tgap: 5 };

    static EVENT_CHANGE = "EVENT_CHANGE";

    _defaultConfig() {
        return extend(super._defaultConfig(...arguments), {
            baseCls: "bi-multi-select-search-pane bi-card",
            itemsCreator: emptyFn,
            valueFormatter: emptyFn,
            keywordGetter: emptyFn,
            itemHeight: 24,
        });
    }

    _init() {
        super._init(...arguments);
        const self = this,
            o = this.options;

        this.loader = createWidget({
            type: MultiSelectSearchLoader.xtype,
            keywordGetter: o.keywordGetter,
            valueFormatter: o.valueFormatter,
            itemFormatter: o.itemFormatter,
            itemsCreator(op, callback) {
                o.itemsCreator.apply(self, [
                    op,
                    function (res) {
                        callback(res);
                    }
                ]);
            },
            itemHeight: o.itemHeight,
            value: o.value,
        });
        this.loader.on(Controller.EVENT_CHANGE, function () {
            self.fireEvent(Controller.EVENT_CHANGE, arguments);
        });

        this.resizer = createWidget({
            type: AbsoluteLayout.xtype,
            element: this,
            items: [
                {
                    el: this.loader,
                    left: 0,
                    right: 0,
                    bottom: 0,
                    top: 0,
                }
            ],
        });
    }

    isAllSelected() {
        return this.loader.isAllSelected();
    }

    hasMatched() {
    }

    setValue(v) {
        this.loader.setValue(v);
    }

    getValue() {
        return this.loader.getValue();
    }

    empty() {
        this.loader.empty();
    }

    populate(items) {
        this.loader.populate(...arguments);
    }
}