{.used.}

import
  stew/results,
  testutils/unittests
import
  ../../waku/v2/utils/time

suite "Utils - Time":

  test "Test timestamp conversion":
    ## Given
    let
      nanoseconds = 1676562429123456789.int64
      secondsPart = nanoseconds div 1_000_000_000
      nanosecondsPart = nanoseconds mod 1_000_000_000
      secondsFloat = secondsPart.float64 + (nanosecondsPart.float64 / 1_000_000_000.float64)
      lowResTimestamp = Timestamp(secondsPart.int64 * 1_000_000_000.int64) # 1676562429000000000
      highResTimestamp = Timestamp(secondsFloat * 1_000_000_000.float64) # 1676562429123456789

    require highResTimestamp > lowResTimestamp # Sanity check

    ## When
    let
      timeInSecondsInt = secondsPart.int
      timeInSecondsInt64 = secondsPart.int64
      timeInSecondsFloat = float(secondsFloat)
      timeInSecondsFloat64 = float64(secondsFloat)

    ## Then
    check:
      getNanosecondTime(timeInSecondsInt) == lowResTimestamp
      getNanosecondTime(timeInSecondsInt64) == lowResTimestamp
      getNanosecondTime(timeInSecondsFloat) == highResTimestamp
      getNanosecondTime(timeInSecondsFloat64) == highResTimestamp