import { Component, OnInit, OnChanges, SimpleChanges, Input, Output, EventEmitter, ViewChild } from '@angular/core';
import { Router, ActivatedRoute } from '@angular/router';
import {HotkeyModule, HotkeysService, Hotkey} from 'angular2-hotkeys';

import { Column, Menu, Button, Options, Row, Cell, DataTable } from "../models";
import { Filter } from "../models/filter";
import { Export } from "../models/export";
import { isNumber, isArray } from "util";
import { JDate } from 'sigma-ts/jdate';

@Component({
    selector: 'datatable',
    templateUrl: './datatable.component.html',
    styleUrls: ['./datatable.component.css']
})
export class DataTableComponent implements OnInit {
    @Input() datatable: DataTable = new DataTable;

    @Output() onrowClick: EventEmitter<Row> = new EventEmitter;
    @Output() onrowDoubleClick: EventEmitter<Row> = new EventEmitter;
    @Output() onsearch: EventEmitter<string> = new EventEmitter;
    @Output() onpageChange: EventEmitter<number> = new EventEmitter;
    @Output() onsortChange: EventEmitter<Column> = new EventEmitter;
    @Output() onlimitChange: EventEmitter<number> = new EventEmitter;
    @Output() onrefresh: EventEmitter<any> = new EventEmitter;

    public constructor(private router: Router, private route: ActivatedRoute,private hotkeysService: HotkeysService) { }
    ngOnInit(): void {
        this.datatable.loadOptions();
        this.route.queryParams.subscribe(params => {
            if(+params['page']) this.datatable.page = +params['page'];
            if(+params['sort']) this.datatable.sort = +params['sort'];
        });
        
        this.hotkeysService.add(new Hotkey('left', (event: KeyboardEvent): boolean => { this.datatable.nextPage(); return false; }));
        this.hotkeysService.add(new Hotkey('right', (event: KeyboardEvent): boolean => { this.datatable.prevPage(); return false; }));
    }
  
    excel() { 
        let rows = this.datatable.rowsSelected;
        if(rows.length == 0) rows = this.datatable.rowsResult;
        Export.excel(this.datatable.name + JDate.format(new Date(), 'yyyy/MM/dd hh:mm:ss') + '.xlsx', rows, this.datatable.columns); 
    }
}