mempool/frontend/src/app/components/timezone-selector/timezone-selector.component.ts
2024-11-14 17:10:30 +01:00

59 lines
2.0 KiB
TypeScript

import { ChangeDetectionStrategy, Component, OnInit } from '@angular/core';
import { UntypedFormBuilder, UntypedFormGroup } from '@angular/forms';
import { StorageService } from '@app/services/storage.service';
import { StateService } from '@app/services/state.service';
import { timezones } from '@app/app.constants';
@Component({
selector: 'app-timezone-selector',
templateUrl: './timezone-selector.component.html',
styleUrls: ['./timezone-selector.component.scss'],
changeDetection: ChangeDetectionStrategy.OnPush
})
export class TimezoneSelectorComponent implements OnInit {
timezoneForm: UntypedFormGroup;
timezones = timezones;
localTimezoneOffset: string = '';
localTimezoneName: string;
constructor(
private formBuilder: UntypedFormBuilder,
private stateService: StateService,
private storageService: StorageService,
) { }
ngOnInit() {
this.setLocalTimezone();
this.timezoneForm = this.formBuilder.group({
mode: ['local'],
});
this.stateService.timezone$.subscribe((mode) => {
this.timezoneForm.get('mode')?.setValue(mode);
});
}
changeMode() {
const newMode = this.timezoneForm.get('mode')?.value;
this.storageService.setValue('timezone-preference', newMode);
this.stateService.timezone$.next(newMode);
}
setLocalTimezone() {
const offset = new Date().getTimezoneOffset();
const sign = offset <= 0 ? "+" : "-";
const absOffset = Math.abs(offset);
const hours = String(Math.floor(absOffset / 60));
const minutes = String(absOffset % 60).padStart(2, '0');
if (minutes === '00') {
this.localTimezoneOffset = `${sign}${hours}`;
} else {
this.localTimezoneOffset = `${sign}${hours.padStart(2, '0')}:${minutes}`;
}
const timezone = this.timezones.find(tz => tz.offset === this.localTimezoneOffset);
this.timezones = this.timezones.filter(tz => tz.offset !== this.localTimezoneOffset && tz.offset !== '+0');
this.localTimezoneName = timezone ? timezone.name : '';
}
}