/var/www/verywell.gr/server/delivery/node_modules/@google-cloud/firestore/build/src
Edit: /var/www/verywell.gr/server/delivery/node_modules/@google-cloud/firestore/build/src/timestamp.js (9697B)
"use strict";
/*!
* Copyright 2018 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.Timestamp = void 0;
const validate_1 = require("./validate");
/*!
* Number of nanoseconds in a millisecond.
*
* @type {number}
*/
const MS_TO_NANOS = 1000000;
/*!
* The minimum legal value for the "seconds" property of a Timestamp object.
*
* This value corresponds to 0001-01-01T00:00:00Z.
*
* @type {number}
*/
const MIN_SECONDS = -62135596800;
/*!
* The maximum legal value for the "seconds" property of a Timestamp object.
*
* This value corresponds to 9999-12-31T23:59:59.999999999Z.
*
* @type {number}
*/
const MAX_SECONDS = 253402300799;
/**
* A Timestamp represents a point in time independent of any time zone or
* calendar, represented as seconds and fractions of seconds at nanosecond
* resolution in UTC Epoch time. It is encoded using the Proleptic Gregorian
* Calendar which extends the Gregorian calendar backwards to year one. It is
* encoded assuming all minutes are 60 seconds long, i.e. leap seconds are
* "smeared" so that no leap second table is needed for interpretation. Range is
* from 0001-01-01T00:00:00Z to 9999-12-31T23:59:59.999999999Z.
*
* @see https://github.com/google/protobuf/blob/master/src/google/protobuf/timestamp.proto
*/
class Timestamp {
/**
* Creates a new timestamp.
*
* @example
* ```
* let documentRef = firestore.doc('col/doc');
*
* documentRef.set({ startTime:new Firestore.Timestamp(42, 0) });
*
* ```
* @param {number} seconds The number of seconds of UTC time since Unix epoch
* 1970-01-01T00:00:00Z. Must be from 0001-01-01T00:00:00Z to
* 9999-12-31T23:59:59Z inclusive.
* @param {number} nanoseconds The non-negative fractions of a second at
* nanosecond resolution. Negative second values with fractions must still
* have non-negative nanoseconds values that count forward in time. Must be
* from 0 to 999,999,999 inclusive.
*/
constructor(seconds, nanoseconds) {
(0, validate_1.validateInteger)('seconds', seconds, {
minValue: MIN_SECONDS,
maxValue: MAX_SECONDS,
});
(0, validate_1.validateInteger)('nanoseconds', nanoseconds, {
minValue: 0,
maxValue: 999999999,
});
this._seconds = seconds;
this._nanoseconds = nanoseconds;
}
/**
* Creates a new timestamp with the current date, with millisecond precision.
*
* @example
* ```
* let documentRef = firestore.doc('col/doc');
*
* documentRef.set({ updateTime:Firestore.Timestamp.now() });
*
* ```
* @return {Timestamp} A new `Timestamp` representing the current date.
*/
static now() {
return Timestamp.fromMillis(Date.now());
}
/**
* Creates a new timestamp from the given date.
*
* @example
* ```
* let documentRef = firestore.doc('col/doc');
*
* let date = Date.parse('01 Jan 2000 00:00:00 GMT');
* documentRef.set({ startTime:Firestore.Timestamp.fromDate(date) });
*
* ```
* @param {Date} date The date to initialize the `Timestamp` from.
* @return {Timestamp} A new `Timestamp` representing the same point in time
* as the given date.
*/
static fromDate(date) {
return Timestamp.fromMillis(date.getTime());
}
/**
* Creates a new timestamp from the given number of milliseconds.
*
* @example
* ```
* let documentRef = firestore.doc('col/doc');
*
* documentRef.set({ startTime:Firestore.Timestamp.fromMillis(42) });
*
* ```
* @param {number} milliseconds Number of milliseconds since Unix epoch
* 1970-01-01T00:00:00Z.
* @return {Timestamp} A new `Timestamp` representing the same point in time
* as the given number of milliseconds.
*/
static fromMillis(milliseconds) {
const seconds = Math.floor(milliseconds / 1000);
const nanos = Math.floor((milliseconds - seconds * 1000) * MS_TO_NANOS);
return new Timestamp(seconds, nanos);
}
/**
* Generates a `Timestamp` object from a Timestamp proto.
*
* @private
* @internal
* @param {Object} timestamp The `Timestamp` Protobuf object.
*/
static fromProto(timestamp) {
return new Timestamp(Number(timestamp.seconds || 0), timestamp.nanos || 0);
}
/**
* The number of seconds of UTC time since Unix epoch 1970-01-01T00:00:00Z.
*
* @example
* ```
* let documentRef = firestore.doc('col/doc');
*
* documentRef.get().then(snap => {
* let updated = snap.updateTime;
* console.log(`Updated at ${updated.seconds}s ${updated.nanoseconds}ns`);
* });
*
* ```
* @type {number}
*/
get seconds() {
return this._seconds;
}
/**
* The non-negative fractions of a second at nanosecond resolution.
*
* @example
* ```
* let documentRef = firestore.doc('col/doc');
*
* documentRef.get().then(snap => {
* let updated = snap.updateTime;
* console.log(`Updated at ${updated.seconds}s ${updated.nanoseconds}ns`);
* });
*
* ```
* @type {number}
*/
get nanoseconds() {
return this._nanoseconds;
}
/**
* Returns a new `Date` corresponding to this timestamp. This may lose
* precision.
*
* @example
* ```
* let documentRef = firestore.doc('col/doc');
*
* documentRef.get().then(snap => {
* console.log(`Document updated at: ${snap.updateTime.toDate()}`);
* });
*
* ```
* @return {Date} JavaScript `Date` object representing the same point in time
* as this `Timestamp`, with millisecond precision.
*/
toDate() {
return new Date(this._seconds * 1000 + Math.round(this._nanoseconds / MS_TO_NANOS));
}
/**
* Returns the number of milliseconds since Unix epoch 1970-01-01T00:00:00Z.
*
* @example
* ```
* let documentRef = firestore.doc('col/doc');
*
* documentRef.get().then(snap => {
* let startTime = snap.get('startTime');
* let endTime = snap.get('endTime');
* console.log(`Duration: ${endTime - startTime}`);
* });
*
* ```
* @return {number} The point in time corresponding to this timestamp,
* represented as the number of milliseconds since Unix epoch
* 1970-01-01T00:00:00Z.
*/
toMillis() {
return this._seconds * 1000 + Math.floor(this._nanoseconds / MS_TO_NANOS);
}
/**
* Returns 'true' if this `Timestamp` is equal to the provided one.
*
* @example
* ```
* let documentRef = firestore.doc('col/doc');
*
* documentRef.get().then(snap => {
* if (snap.createTime.isEqual(snap.updateTime)) {
* console.log('Document is in its initial state.');
* }
* });
*
* ```
* @param {any} other The `Timestamp` to compare against.
* @return {boolean} 'true' if this `Timestamp` is equal to the provided one.
*/
isEqual(other) {
return (this === other ||
(other instanceof Timestamp &&
this._seconds === other.seconds &&
this._nanoseconds === other.nanoseconds));
}
/**
* Generates the Protobuf `Timestamp` object for this timestamp.
*
* @private
* @internal
* @returns {Object} The `Timestamp` Protobuf object.
*/
toProto() {
const timestamp = {};
if (this.seconds) {
timestamp.seconds = this.seconds.toString();
}
if (this.nanoseconds) {
timestamp.nanos = this.nanoseconds;
}
return { timestampValue: timestamp };
}
/**
* Converts this object to a primitive `string`, which allows `Timestamp` objects to be compared
* using the `>`, `<=`, `>=` and `>` operators.
*
* @return {string} a string encoding of this object.
*/
valueOf() {
// This method returns a string of the form
. where is
// translated to have a non-negative value and both and are left-padded
// with zeroes to be a consistent length. Strings with this format then have a lexicographical
// ordering that matches the expected ordering. The translation is done to avoid
// having a leading negative sign (i.e. a leading '-' character) in its string representation,
// which would affect its lexicographical ordering.
const adjustedSeconds = this.seconds - MIN_SECONDS;
// Note: Up to 12 decimal digits are required to represent all valid 'seconds' values.
const formattedSeconds = String(adjustedSeconds).padStart(12, '0');
const formattedNanoseconds = String(this.nanoseconds).padStart(9, '0');
return formattedSeconds + '.' + formattedNanoseconds;
}
}
exports.Timestamp = Timestamp;
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