import { Component, EventEmitter, Input, OnInit } from '@angular/core';
import {
  FormBuilder,
  FormControl,
  FormGroup,
  Validators
} from '@angular/forms';

@Component({
  selector: 'ics-time-picker',
  templateUrl: './time-picker.component.html',
  styleUrls: ['./time-picker.component.scss']
})
export class TimePickerComponent implements OnInit {
  @Input() public hourControl: FormControl;
  @Input() public minuteControl: FormControl;


  constructor(private formBuilder: FormBuilder) {
  }

  ngOnInit() {

  }

  dirtyCheckForHour() {
    try {
      let value = this.hourControl.value;
      value = parseInt(value, 0);
      if (value < 0) {
        value = 23;
      } else {
        value %= 24;
      }
      this.hourControl.patchValue(this.makeSureTwoUnits(value));
    } catch (e) {
    }
  }

  dirtyCheckForMinute() {
    try {
      let value = this.minuteControl.value;
      value = parseInt(value, 0);
      if (value < 0) {
        value = 59;
        this.decrementHour();
      } else {
        value %= 60;
        if (value === 0) {
          this.incrementHour();
        }
      }
      this.minuteControl.patchValue(this.makeSureTwoUnits(value));
    } catch (e) {
    }
  }

  incrementHour() {
    this.adjustHourBy(1);
  }

  decrementHour() {
    this.adjustHourBy(-1);
  }

  adjustHourBy(val: number) {
    const currentValue = this.hourControl.value;
    const newValue = parseInt(currentValue, 0) + val;

    this.hourControl.patchValue(newValue);
    this.dirtyCheckForHour();
  }

  adjustMinuteBy(val: number) {
    const currentValue = this.minuteControl.value;
    const newValue = parseInt(currentValue, 0) + val;
    this.minuteControl.patchValue(newValue);
    this.dirtyCheckForMinute();
  }

  makeSureTwoUnits(val) {
    return val > 9 ? val + '' : '0' + val;
  }
}