import {sortByNumberAscending, sortByStringAscending} from './sorting.service';

export abstract class TableComponentBase<T> {
    public sortBy: string;
    public sortDescending = false;
    public items: T[] = [];

    protected doNumericSort(by: string, key: (ScrumTask) => number) {
        if (this.sortBy === by) {
            this.sortDescending = !this.sortDescending;
        } else {
            this.sortBy = by;
        }

        this.items = sortByNumberAscending(this.items, key);
        if (this.sortDescending) {
            this.items = this.items.reverse();
        }
    }

    protected doStringSort(by: string, key: (ScrumTask) => string) {
        if (this.sortBy === by) {
            this.sortDescending = !this.sortDescending;
        } else {
            this.sortBy = by;
        }

        this.items = sortByStringAscending(this.items, key);
        if (this.sortDescending) {
            this.items = this.items.reverse();
        }
    }
}