85 lines
3.4 KiB
TypeScript
85 lines
3.4 KiB
TypeScript
import { Injectable } from '@angular/core';
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import { DatePipe } from '@angular/common';
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import { Observable , Observer } from 'rxjs';
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import { ITypeaheadItem } from '../models/typeahead.item';
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@Injectable({
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providedIn: 'root',
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})
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export class TimespanService {
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constructor(private datePipe: DatePipe) {
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}
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unitScales: number[] = [1, 1000, 1000 * 60, 1000 * 60 * 60, 1000 * 60 * 60 * 24, 1000 * 60 * 60 * 24 * 7, 1000 * 60 * 60 * 24 * 31, 1000 * 60 * 60 * 24 * 31 * 3, 1000 * 60 * 60 * 24 * 365.25];
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units: string[] = ['millisecond', 'second', 'minute', 'hour', 'day', 'week', 'month', 'quarter', 'year'];
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quarters: string[] = ['KW1', 'KW2', 'KW3', 'KW4'];
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getStartEndCaption(date: Date, otherDate: Date, unitScale: number, suffix = false, extended = true): string {
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const showSuffix = false;
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otherDate = new Date(otherDate.getTime() - 1); // fix year edge case
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if (unitScale == 3) {
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let format = "HH:00";
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if (extended) {
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if (suffix || date.getFullYear() != otherDate.getFullYear())
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format = "d MMM yyyy:HH:00";
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else if (date.getMonth() !== otherDate.getMonth())
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format = "d MMM HH:00";
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}
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return this.datePipe.transform(date, format);
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}
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if (unitScale == 4) {
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let format = "d";
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if (extended) {
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if (suffix || date.getFullYear() != otherDate.getFullYear())
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format = "d MMM yyyy";
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else if (date.getMonth() !== otherDate.getMonth())
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format = "d MMM"
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}
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return this.datePipe.transform(date, format);
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}
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if (unitScale == 6) {
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let format = "MMM";
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if (extended) {
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if (suffix || date.getFullYear() != otherDate.getFullYear())
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format = "MMM yyyy";
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}
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return this.datePipe.transform(date, format);
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}
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if (unitScale == 7) {
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const q = Math.trunc(date.getMonth() / 3);
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return this.quarters[q];
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}
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if (unitScale == 8) {
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return this.datePipe.transform(date, "yyyy");
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}
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return "";
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}
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getStartCaption(startDate: Date, endDate: Date, unitScale: number, suffix = false, extended = true): string {
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return this.getStartEndCaption(new Date(startDate.getTime() + (this.unitScales[unitScale] / 2)), endDate, unitScale, suffix, extended);
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}
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getEndCaption(startDate: Date,endDate: Date, unitScale: number, suffix = true): string {
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return this.getStartEndCaption(new Date(endDate.getTime() - (this.unitScales[unitScale] / 2)), startDate, unitScale, suffix);
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}
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getCaption(startDate: Date, endDate: Date, unitScale?: number): string {
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let scale = unitScale;
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if(unitScale==null) {
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scale=4;
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if(startDate.getUTCMonth() == 0 && startDate.getUTCDate() == 1 && startDate.getUTCHours() == 0 && startDate.getUTCMinutes() ==0 && startDate.getUTCSeconds() ==0 &&
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endDate.getUTCMonth() == 0 && endDate.getUTCDate() == 1 && endDate.getUTCHours() == 0 && endDate.getUTCMinutes() ==0 && endDate.getUTCSeconds() ==0) {
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scale=8;
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} else if (startDate.getUTCHours() > 0 && startDate.getUTCMinutes() >0) {
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scale =3
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}
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}
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const startCaption = this.getStartCaption(startDate, endDate, scale);
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const endCaption = this.getEndCaption(startDate,endDate, scale);
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if ((endDate.getTime() - startDate.getTime()) < (1.5 * this.unitScales[scale]))
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return endCaption;
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return `${startCaption}-${endCaption}`;
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}
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}
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