import { Component, EventEmitter, Input, OnChanges, Output, ViewContainerRef, HostBinding } from '@angular/core';

import { Color } from './../../../directives/base-chart.directive';

@Component({
    selector: 'uni-chart',
    templateUrl: 'chart.component.html',
    styleUrls: ['chart.component.scss'],
})
export class UniChartComponent implements OnChanges {

    @HostBinding('class.uni-chart') componentClass = true;
    @Input() chartTitle: string;
    @Input() size: 'tiny' | 'small' | 'medium' | 'large' = 'medium';
    @Input() type: 'line' | 'bar' | 'pie' | 'radar' | 'doughnut' | 'polarArea' | 'horizontalBar';

    @Input() series: Array<{ label: string, data: [number], color: Color }> = [];
    @Input() labels: string[] = [];
    @Input() options = {};

    @Output() chartHover = new EventEmitter();
    @Output() chartClick = new EventEmitter();

    tooltip: any = {};

    defaultOptions = {
        responsive: false,
        maintainAspectRatio: false,
        tooltips: { enabled: false, custom: tooltip => this.tooltip = tooltip }
    };

    ngOnChanges(changes) {
        if (changes.type || changes.options) {
            this.options = Object.assign(this.options, this.defaultOptions);
        }
    }

    constructor(private view: ViewContainerRef) {

    }
}