import { EventEmitter } from '@angular/core';

import { NovoSimpleTableChange, NovoSimpleSortFilter } from './interfaces';

export class NovoActivityTableState {
    id: number = Math.random();
    sort: { id: string, value: string } = undefined;
    filter: { id: string, value: string } = undefined;
    page: number = 0;
    pageSize: number = undefined;
    globalSearch: string = undefined;
    selectedRows: Map<string, object> = new Map<string, object>();

    updates: EventEmitter<NovoSimpleTableChange> = new EventEmitter<NovoSimpleTableChange>();
    onReset: EventEmitter<boolean> = new EventEmitter<boolean>();

    get userFiltered(): boolean {
        return !!(this.filter || this.sort || this.globalSearch);
    }

    public reset(fireUpdate: boolean = true, persistUserFilters?: boolean): void {
        if (!persistUserFilters) {
            this.sort = undefined;
            this.globalSearch = undefined;
            this.filter = undefined;
        }
        this.page = 0;
        this.selectedRows.clear();
        this.onReset.emit(true);
        if (fireUpdate) {
            this.updates.emit({
                sort: this.sort,
                filter: this.filter,
                globalSearch: this.globalSearch
            });
        }
    }
}