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!7

cmodule EstimateDiskDoom > DynPrintLogAndEnabled {
  switchable long timeHorizon = daysToMS(3); // don't report of longer than that away
  transient new DoomEstimator estimator;

  start {
    estimator.minValue = 3.0; // 3 percent free space
    doEveryAndNow(60.0, r measure);
  }
  
  void measure enter {
    double value = 100-diskSpacePercentage_oshi();
    printWithTime("Free space: " + formatDouble(value, 3) + " %");
    if (!estimator.consumeValue(value)) ret;
    long ms = or0(estimator.doomDate)-sysNow();
    if (estimator.doomDate == null || ms >= timeHorizon) ret with setStatus("Hard disk is doom-free!");
    double days = toDays(ms), hours = toHours(ms);
    S doomText = days >= 2
        ? iround(days) + " days from now"
      : hours >= 2 ?
        iround(hours) + " hours from now"
      : n2(iround(toMinutes(ms)), "minute") + "from now";
    // formatDouble(100-estimator.minValue, 0)
    setStatus("DOOM IN " + doomText + " (hard disk " +
      formatDouble(100-estimator.value1, 1) + "% full)");
  }
  
  void setStatus(S s) {
    setModuleName(print(s));
  }
}