import { ChangeDetectionStrategy, Component, ElementRef, EventEmitter, Input, OnInit, Output, ViewChild } from '@angular/core';
import { MatTooltip } from '@angular/material/tooltip';
import { CircleButtonType, CircleButtonTypes } from '../types/circle-button.type';
import { IqserTooltipPosition, IqserTooltipPositions } from '../../utils';

@Component({
    selector: 'iqser-circle-button [icon]',
    templateUrl: './circle-button.component.html',
    styleUrls: ['./circle-button.component.scss'],
    changeDetection: ChangeDetectionStrategy.OnPush,
})
export class CircleButtonComponent implements OnInit {
    readonly circleButtonTypes = CircleButtonTypes;

    @Input() id!: string;
    @Input() icon!: string;
    @Input() tooltip?: string;
    @Input() tooltipClass?: string;
    @Input() showDot = false;
    @Input() tooltipPosition: IqserTooltipPosition = IqserTooltipPositions.above;
    @Input() disabled = false;
    @Input() type: CircleButtonType = CircleButtonTypes.default;
    @Input() greySelected = false;
    @Input() helpModeButton = false;
    @Input() removeTooltip = false;
    @Input() isSubmit = false;
    @Input() size = 34;
    @Input() iconSize = 14;
    @Output() readonly action = new EventEmitter<MouseEvent>();

    @ViewChild(MatTooltip) private readonly _matTooltip!: MatTooltip;

    constructor(private readonly _elementRef: ElementRef) {}

    get buttonId(): string {
        return `${Math.random().toString(36).substring(2, 9)}-button`;
    }

    ngOnInit(): void {
        (this._elementRef.nativeElement as HTMLElement).style.setProperty('--size', `${this.size}px`);
        (this._elementRef.nativeElement as HTMLElement).style.setProperty('--iconSize', `${this.iconSize}px`);
    }

    performAction($event: MouseEvent): void {
        if (this.disabled) {
            return;
        }

        if (this.removeTooltip) {
            this._matTooltip.hide();
            // Timeout to allow tooltip to disappear first,
            // useful when removing an item from the list without a confirmation dialog
            setTimeout(() => this.action.emit($event));
        } else {
            this.action.emit($event);
        }
    }
}