import ngModule from '../module';
import './style.scss';

class Controller {
    constructor($scope, $state) {
        this.$scope = $scope;
        this.$state = $state;

        // Static autocomplete data
        this.wayList = [
            {way: 'ASC', name: 'Ascendant'},
            {way: 'DESC', name: 'Descendant'},
        ];
        this.defaultFieldList = [
            {field: 'relevancy DESC, name', name: 'Name'},
            {field: 'price', name: 'Price'}
        ];
        this.fieldList = [];
        this.fieldList = this.fieldList.concat(this.defaultFieldList);
        this._way = this.wayList[0].way;
        this._field = this.fieldList[0].field;
    }

    /**
     * Fills order autocomplete with tags
     * obtained from last filtered
     */
    onDataChange() {
        const items = this.$scope.model.data;

        if (!items) return;

        this.fieldList = [];
        this.fieldList = this.fieldList.concat(this.defaultFieldList);

        items.forEach(item => {
            item.tags.forEach(itemTag => {
                const alreadyAdded = this.fieldList.find(order => {
                    return order.field == itemTag.tagFk;
                });

                if (!alreadyAdded) {
                    this.fieldList.push({
                        name: itemTag.name,
                        field: itemTag.tagFk,
                        isTag: true
                    });
                }
            });
        });
    }

    /**
     * Get order way ASC/DESC
     */
    get way() {
        return this._way;
    }

    set way(value) {
        this._way = value;

        if (value)
            this.applyOrder();
    }

    /**
     * Get order fields
     */
    get field() {
        return this._field;
    }

    set field(value) {
        this._field = value;

        if (value)
            this.applyOrder();
    }

    /**
     * Returns order param
     *
     * @return {Object} - Order param
     */
    getOrderBy() {
        let field = this.$scope.field;
        let args = {
            field: this.field,
            way: this.way
        };

        if (field.selection && field.selection.isTag)
            args.isTag = true;

        return args;
    }

    /**
     * Apply order to model
     */
    applyOrder() {
        this.$scope.model.addFilter(null, {orderBy: this.getOrderBy()});
    }

    preview(event, item) {
        event.preventDefault();
        this.$scope.pricesPopover.show(event, item);
    }

    onDescriptorLoad() {
        this.$scope.popover.relocate();
    }

    $onChanges() {
        if (this.order && this.order.isConfirmed)
            this.$state.go('order.card.line');
    }
}

Controller.$inject = ['$scope', '$state'];

ngModule.component('vnOrderCatalog', {
    template: require('./index.html'),
    controller: Controller,
    bindings: {
        order: '<',
    }
});