import ngModule from '../../module';
import Component from '../../lib/component';
import './style.scss';

/**
 * A simple tooltip.
 *
 * @property {String} position The relative position to the parent
 */
export default class Treeview extends Component {
    constructor($element, $scope) {
        super($element, $scope);
        this.data = [];
    }

    $onInit() {
        this.refresh();
    }

    refresh() {
        this.model.refresh().then(() => {
            this.data = this.model.data;
        });
    }

    /*     hasCheckedChilds(node) {
        if (!node.childs) return false;

        const childs = node.childs;
        for (let i = 0; i < childs.length; i++) {
            if (childs[i].selected || this.hasCheckedChilds(childs[i]))
                return true;
        }

        return false;
    }

    hasCheckedParents(node) {
        if (!node.parent) return false;

        const parent = node.parent;
        if (parent.selected || this.hasCheckedParents(parent))
            return true;

        return false;
    } */

    onSelection(item, value) {
        this.emit('selection', {item, value});
    }

    onToggle(item) {
        if (item.active)
            item.childs = undefined;
        else {
            this.model.applyFilter({}, {parentFk: item.id}).then(() => {
                const newData = this.model.data;

                if (item.childs) {
                    let childs = item.childs;
                    childs.forEach(child => {
                        let index = newData.findIndex(newChild => {
                            return newChild.id == child.id;
                        });
                        newData[index] = child;
                    });
                }

                item.childs = newData.sort((a, b) => {
                    let priority = (b.isIncluded - a.isIncluded) - 1;

                    if (b.name > a.name)
                        priority++;

                    return priority;
                });
            });
        }

        item.active = !item.active;
    }
}

Treeview.$inject = ['$element', '$scope'];

ngModule.component('vnTreeview', {
    template: require('./index.html'),
    controller: Treeview,
    bindings: {
        model: '<'
    }
});