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+"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 });
+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) {
+        validate_1.validateInteger('seconds', seconds, {
+            minValue: MIN_SECONDS,
+            maxValue: MAX_SECONDS,
+        });
+        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 <seconds>.<nanoseconds> where <seconds> is
+        // translated to have a non-negative value and both <seconds> and <nanoseconds> 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 <seconds> 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;
+//# sourceMappingURL=timestamp.js.map