import * as _m0 from "protobufjs/minimal";
import { Long, isSet, DeepPartial } from "@osmonauts/helpers";

/**
 * A Timestamp represents a point in time independent of any time zone or local
 * calendar, encoded as a count of seconds and fractions of seconds at
 * nanosecond resolution. The count is relative to an epoch at UTC midnight on
 * January 1, 1970, in the proleptic Gregorian calendar which extends the
 * Gregorian calendar backwards to year one.
 * 
 * All minutes are 60 seconds long. Leap seconds are "smeared" so that no leap
 * second table is needed for interpretation, using a [24-hour linear
 * smear](https://developers.google.com/time/smear).
 * 
 * The range is from 0001-01-01T00:00:00Z to 9999-12-31T23:59:59.999999999Z. By
 * restricting to that range, we ensure that we can convert to and from [RFC
 * 3339](https://www.ietf.org/rfc/rfc3339.txt) date strings.
 * 
 * # Examples
 * 
 * Example 1: Compute Timestamp from POSIX `time()`.
 * 
 * Timestamp timestamp;
 * timestamp.set_seconds(time(NULL));
 * timestamp.set_nanos(0);
 * 
 * Example 2: Compute Timestamp from POSIX `gettimeofday()`.
 * 
 * struct timeval tv;
 * gettimeofday(&tv, NULL);
 * 
 * Timestamp timestamp;
 * timestamp.set_seconds(tv.tv_sec);
 * timestamp.set_nanos(tv.tv_usec * 1000);
 * 
 * Example 3: Compute Timestamp from Win32 `GetSystemTimeAsFileTime()`.
 * 
 * FILETIME ft;
 * GetSystemTimeAsFileTime(&ft);
 * UINT64 ticks = (((UINT64)ft.dwHighDateTime) << 32) | ft.dwLowDateTime;
 * 
 * // A Windows tick is 100 nanoseconds. Windows epoch 1601-01-01T00:00:00Z
 * // is 11644473600 seconds before Unix epoch 1970-01-01T00:00:00Z.
 * Timestamp timestamp;
 * timestamp.set_seconds((INT64) ((ticks / 10000000) - 11644473600LL));
 * timestamp.set_nanos((INT32) ((ticks % 10000000) * 100));
 * 
 * Example 4: Compute Timestamp from Java `System.currentTimeMillis()`.
 * 
 * long millis = System.currentTimeMillis();
 * 
 * Timestamp timestamp = Timestamp.newBuilder().setSeconds(millis / 1000)
 * .setNanos((int) ((millis % 1000) * 1000000)).build();
 * 
 * 
 * Example 5: Compute Timestamp from current time in Python.
 * 
 * timestamp = Timestamp()
 * timestamp.GetCurrentTime()
 * 
 * # JSON Mapping
 * 
 * In JSON format, the Timestamp type is encoded as a string in the
 * [RFC 3339](https://www.ietf.org/rfc/rfc3339.txt) format. That is, the
 * format is "{year}-{month}-{day}T{hour}:{min}:{sec}[.{frac_sec}]Z"
 * where {year} is always expressed using four digits while {month}, {day},
 * {hour}, {min}, and {sec} are zero-padded to two digits each. The fractional
 * seconds, which can go up to 9 digits (i.e. up to 1 nanosecond resolution),
 * are optional. The "Z" suffix indicates the timezone ("UTC"); the timezone
 * is required. A proto3 JSON serializer should always use UTC (as indicated by
 * "Z") when printing the Timestamp type and a proto3 JSON parser should be
 * able to accept both UTC and other timezones (as indicated by an offset).
 * 
 * For example, "2017-01-15T01:30:15.01Z" encodes 15.01 seconds past
 * 01:30 UTC on January 15, 2017.
 * 
 * In JavaScript, one can convert a Date object to this format using the
 * standard
 * [toISOString()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString)
 * method. In Python, a standard `datetime.datetime` object can be converted
 * to this format using
 * [`strftime`](https://docs.python.org/2/library/time.html#time.strftime) with
 * the time format spec '%Y-%m-%dT%H:%M:%S.%fZ'. Likewise, in Java, one can use
 * the Joda Time's [`ISODateTimeFormat.dateTime()`](
 * http://www.joda.org/joda-time/apidocs/org/joda/time/format/ISODateTimeFormat.html#dateTime%2D%2D
 * ) to obtain a formatter capable of generating timestamps in this format.
 */
export interface Timestamp {
  /**
   * Represents 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.
   */
  seconds: Long;

  /**
   * Non-negative fractions of a second at nanosecond resolution. Negative
   * second values with fractions must still have non-negative nanos values
   * that count forward in time. Must be from 0 to 999,999,999
   * inclusive.
   */
  nanos: number;
}

function createBaseTimestamp(): Timestamp {
  return {
    seconds: Long.ZERO,
    nanos: 0
  };
}

export const Timestamp = {
  encode(message: Timestamp, writer: _m0.Writer = _m0.Writer.create()): _m0.Writer {
    if (!message.seconds.isZero()) {
      writer.uint32(8).int64(message.seconds);
    }

    if (message.nanos !== 0) {
      writer.uint32(16).int32(message.nanos);
    }

    return writer;
  },

  decode(input: _m0.Reader | Uint8Array, length?: number): Timestamp {
    const reader = input instanceof _m0.Reader ? input : new _m0.Reader(input);
    let end = length === undefined ? reader.len : reader.pos + length;
    const message = createBaseTimestamp();

    while (reader.pos < end) {
      const tag = reader.uint32();

      switch (tag >>> 3) {
        case 1:
          message.seconds = (reader.int64() as Long);
          break;

        case 2:
          message.nanos = reader.int32();
          break;

        default:
          reader.skipType(tag & 7);
          break;
      }
    }

    return message;
  },

  fromJSON(object: any): Timestamp {
    return {
      seconds: isSet(object.seconds) ? Long.fromString(object.seconds) : Long.ZERO,
      nanos: isSet(object.nanos) ? Number(object.nanos) : 0
    };
  },

  toJSON(message: Timestamp): unknown {
    const obj: any = {};
    message.seconds !== undefined && (obj.seconds = (message.seconds || Long.ZERO).toString());
    message.nanos !== undefined && (obj.nanos = Math.round(message.nanos));
    return obj;
  },

  fromPartial(object: DeepPartial<Timestamp>): Timestamp {
    const message = createBaseTimestamp();
    message.seconds = object.seconds !== undefined && object.seconds !== null ? Long.fromValue(object.seconds) : Long.ZERO;
    message.nanos = object.nanos ?? 0;
    return message;
  }

};