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August 15, 2020 16:33
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| namespace S { | |
| let formats: any = {} | |
| let systemLocation = Intl.DateTimeFormat().resolvedOptions().timeZone | |
| export class Date { | |
| private _date: globalThis.Date | |
| private _location: string | |
| private _locationOffset: number | |
| constructor(d?: number, location?: string) { | |
| this._date = d ? new globalThis.Date(d) : new globalThis.Date() | |
| if (location) { | |
| this._location = location | |
| this._locationOffset = this.getTimezoneOffset(this, location) | |
| } else { | |
| this._location = systemLocation | |
| this._locationOffset = this._date.getTimezoneOffset() | |
| } | |
| } | |
| get location() { | |
| return this._location | |
| } | |
| get locationOffset() { | |
| return this._locationOffset | |
| } | |
| getTime() { | |
| return this._date.getTime() | |
| } | |
| getHours() { | |
| return this._date.getHours() | |
| } | |
| getMinutes() { | |
| return this._date.getMinutes() | |
| } | |
| getSeconds() { | |
| return this._date.getSeconds() | |
| } | |
| getMilliseconds() { | |
| return this._date.getMilliseconds() | |
| } | |
| getDate() { | |
| return this._date.getDate() | |
| } | |
| getDay() { | |
| return this._date.getDay() | |
| } | |
| getMonth() { | |
| return this._date.getMonth() | |
| } | |
| getFullYear() { | |
| return this._date.getFullYear() | |
| } | |
| isSameDay(d: Date) { | |
| return this.getFullYear() === d.getFullYear() | |
| && this.getMonth() === d.getMonth() | |
| && this.getDate() === d.getDate() | |
| } | |
| addMilliseconds(millis: number) { | |
| return new Date(this.getTime() + millis, this._location) | |
| } | |
| addMinutes(minutes: number) { | |
| return new Date(this.getTime() + minutes * 60000, this._location) | |
| } | |
| addHours(hours: number) { | |
| return new Date(this.getTime() + hours * 60 * 60000, this._location) | |
| } | |
| addDays(days: number) { | |
| var d = new Date(this.getTime(), this._location) | |
| d._date.setDate(d._date.getDate() + days) | |
| return d; | |
| } | |
| setDay(day: number) { | |
| var d = new Date(this.getTime(), this._location) | |
| d._date.setDate(day) | |
| return d | |
| } | |
| in(location: string) { | |
| let utc = this.toUTC() | |
| let offset = this.getTimezoneOffset(this, location) | |
| let dl = new Date(utc - offset * 60 * 1000, location) | |
| return dl | |
| } | |
| static newDate(year?: number, month?: number, day?: number, hour?: number, min?: number, secs?: number, millis?: number, location?: string) { | |
| let d = new globalThis.Date(year || 1, month || 1, day || 1, hour || 0, min || 0, secs || 0, millis || 0) | |
| return new Date(d.getTime(), location) | |
| } | |
| startOfDay() { | |
| return Date.newDate(this.getFullYear(), this.getMonth(), this.getDate(), null, null, null, null, this._location) | |
| } | |
| endOfDay() { | |
| let d = Date.newDate(this.getFullYear(), this.getMonth(), this.getDate(), null, null, null, null, this._location) | |
| d._date.setDate(d._date.getDate() + 1) | |
| return new Date(d.getTime() - 1, this.location) | |
| } | |
| copy() { | |
| return new Date(this.getTime(), this.location) | |
| } | |
| toUTC() { | |
| return this._date.getTime() + this._locationOffset * 60 * 1000 | |
| } | |
| private getTimezoneOffset(d: Date, location: string) { | |
| const utcStr = this.formatTimezone("UTC", d) | |
| const localStr = this.formatTimezone(location, d) | |
| let localISO = this.parseISOLocal(localStr) | |
| let utcISO = this.parseISOLocal(utcStr) | |
| let offset = utcISO.getTime() - localISO.getTime() | |
| return offset / 60 / 1000 | |
| } | |
| private formatTimezone(timeZone: string, d: Date) { | |
| let f = this.getFormat(timeZone) | |
| let s = f.format(d._date) | |
| // handle Chrome80 bug: goes from 23:59:59 to 24:00:00 | |
| var parts = s.splitEx(/\D/) | |
| let hour = parseInt(parts[3], 10) | |
| if (hour >= 24) { | |
| hour -= 24 | |
| s = parts[0] + "/" + parts[1] + "/" + parts[2] + ", " + hour + ":" + parts[4] + ":" + parts[5] | |
| } | |
| return s | |
| } | |
| toString() { | |
| return this.format("yyyy/MM/dd HH:mm") + " (" + this._location + ")" | |
| } | |
| format(pattern: string) { | |
| let parts: any[] = [] | |
| for (let i = 0, l = pattern.length - 1; i <= l; i++) { | |
| let c = pattern[i] | |
| switch (c) { | |
| case "d": | |
| if (i < l && pattern[i + 1] == "d") { | |
| if (i < l - 1 && pattern[i + 2] == "d") { | |
| parts.push({ token: "ddd" }) | |
| i += 2 | |
| continue | |
| } | |
| parts.push({ token: "dd" }) | |
| i++ | |
| continue | |
| } | |
| parts.push({ token: "d" }) | |
| continue | |
| case "M": | |
| if (i < l && pattern[i + 1] == "M") { | |
| parts.push({ token: "MM" }) | |
| i++ | |
| continue | |
| } | |
| parts.push({ token: "M" }) | |
| continue | |
| case "y": | |
| if (i < l && pattern[i + 1] == "y") { | |
| if (i < l - 2 && pattern[i + 2] == "y" && pattern[i + 3] == "y") { | |
| parts.push({ token: "yyyy" }) | |
| i += 3 | |
| continue | |
| } | |
| parts.push({ token: "yy" }) | |
| i++ | |
| continue | |
| } | |
| parts.push(c) | |
| break | |
| case "h": | |
| if (i < l && pattern[i + 1] == "h") { | |
| parts.push({ token: "hh" }) | |
| i++ | |
| continue | |
| } | |
| parts.push({ token: "h" }) | |
| continue | |
| case "H": | |
| if (i < l && pattern[i + 1] == "H") { | |
| parts.push({ token: "HH" }) | |
| i++ | |
| continue | |
| } | |
| parts.push({ token: "H" }) | |
| continue | |
| case "m": | |
| if (i < l && pattern[i + 1] == "m") { | |
| if (i < l - 1 && pattern[i + 2] == "m") { | |
| parts.push({ token: "mmm" }) | |
| i += 2 | |
| continue | |
| } | |
| parts.push({ token: "mm" }) | |
| i++ | |
| continue | |
| } | |
| parts.push({ token: "m" }) | |
| continue | |
| case "s": | |
| if (i < l && pattern[i + 1] == "s") { | |
| parts.push({ token: "ss" }) | |
| i++ | |
| continue | |
| } | |
| parts.push({ token: "s" }) | |
| continue | |
| case "z": | |
| if (i < l && pattern[i + 1] == "z") { | |
| parts.push({ token: "zz" }) | |
| i++ | |
| continue | |
| } | |
| parts.push(c) | |
| continue | |
| case "\\": | |
| if (i < l) { | |
| parts.push(pattern[i + 1]) | |
| i++ | |
| continue | |
| } | |
| break | |
| default: | |
| parts.push(c) | |
| break | |
| } | |
| } | |
| let result = [] | |
| for (let part of parts) { | |
| switch (part.token) { | |
| case "d": | |
| result.push(this.getDate()) | |
| break | |
| case "dd": | |
| result.push(padLeft(String(this.getDate()), "0", 2)) | |
| break | |
| case "ddd": | |
| let day = weekDays[this.getDay()] | |
| result.push(day) | |
| break | |
| case "M": | |
| result.push(this.getMonth()) | |
| break | |
| case "MM": | |
| result.push(padLeft(String(this.getMonth()), "0", 2)) | |
| break | |
| case "mmm": | |
| let month = monthNames[this.getMonth()] | |
| result.push(month) | |
| break | |
| case "yy": | |
| result.push(padLeft(String(this.getFullYear() - 2000), "0", 2)) | |
| break | |
| case "yyyy": | |
| result.push(this.getFullYear()) | |
| break | |
| case "h": | |
| result.push(this.getHours()) | |
| break | |
| case "hh": | |
| let hours = this.getHours() | |
| if (hours > 12) { | |
| hours -= 12 | |
| } | |
| result.push(padLeft(String(hours), "0", 2)) | |
| break | |
| case "HH": | |
| result.push(padLeft(String(this.getHours()), "0", 2)) | |
| break | |
| case "m": | |
| result.push(this.getMinutes()) | |
| break | |
| case "mm": | |
| result.push(padLeft(String(this.getMinutes()), "0", 2)) | |
| break | |
| case "s": | |
| result.push(this.getSeconds()) | |
| break | |
| case "ss": | |
| result.push(padLeft(String(this.getSeconds()), "0", 2)) | |
| break | |
| case "zz": | |
| result.push(this._location) | |
| break | |
| case undefined: | |
| result.push(part) | |
| break | |
| default: | |
| result.push(part.token) | |
| break | |
| } | |
| } | |
| return result.join("") | |
| } | |
| private getFormat(timeZone: string) { | |
| let f = formats[timeZone] | |
| if (!f) { | |
| // 09/18/2019, 13:49:27 | |
| f = new Intl.DateTimeFormat('en-US', { | |
| year: 'numeric', | |
| month: '2-digit', | |
| day: '2-digit', | |
| hour: '2-digit', | |
| minute: '2-digit', | |
| second: '2-digit', | |
| hour12: false, | |
| timeZone | |
| }) | |
| formats[timeZone] = f | |
| } | |
| return f | |
| } | |
| private parseISOLocal(s: string) { | |
| var parts = s.splitEx(/\D/) | |
| if (parts.length != 6) { | |
| throw "Invalid ISO date" | |
| } | |
| let month = Number(parts[0]) - 1 | |
| let day = Number(parts[1]) | |
| let year = Number(parts[2]) | |
| let hour = Number(parts[3]) | |
| let min = Number(parts[4]) | |
| let sec = Number(parts[5]) | |
| return new globalThis.Date(year, month, day, hour, min, sec, 0) | |
| } | |
| } | |
| export var weekDays = ["@@Sunday", "@@Monday", "@@Tuesday", "@@Wednesday", "@@Thursday", "@@Friday", "@@Saturday"] | |
| export function getWeekdayName(dayOfWeek: number) { | |
| return weekDays[dayOfWeek] | |
| } | |
| let monthNames = [ | |
| "@@January", | |
| "@@February", | |
| "@@March", | |
| "@@April", | |
| "@@May", | |
| "@@Jun", | |
| "@@Julay", | |
| "@@August", | |
| "@@Sepember", | |
| "@@October", | |
| "@@November", | |
| "@@December", | |
| ] | |
| } |
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