export const prettyDurationFromMinutes = (runtime) => {
  const hours = Math.floor(runtime / 60);
  const minutes = (runtime % 60);

  let duration = "";
  if (hours > 0) { duration += hours + "h" }
  if (minutes > 0) { duration += ("0" + minutes).slice(-2) }
  if (hours === 0) { duration += " min" }

  return duration;
}

const pad = (d) => (d < 10) ? "0" + d.toString() : d.toString();

export const prettyEpisodeName = (showName, season, episode) =>
  `${showName} S${pad(season)}E${pad(episode)}`;

export const inLibrary = (element) =>
  element.get("polochon_url", "") !== "";

export const isWishlisted = (element) => {
  const wishlisted = element.get("wishlisted", undefined)
  if (wishlisted !== undefined) {
    return wishlisted;
  }

  const trackedSeason = element.get("tracked_season", null);
  const trackedEpisode = element.get("tracked_episode", null);
  if ((trackedSeason !== null) && (trackedEpisode !== null)) {
    return true;
  }

  return false
}

export const isEpisodeWishlisted = (element, trackedSeason, trackedEpisode) => {
  if ((trackedSeason === null) && (trackedEpisode === null)) {
    return false;
  }

  if ((trackedSeason === 0) && (trackedEpisode === 0)) {
    return true
  }

  const season = element.get("season", 0);
  const episode = element.get("episode", 0);
  if (season < trackedSeason) {
    return false
  } else if (season > trackedSeason) {
    return true
  } else {
    return (episode >= trackedEpisode)
  }
}

export const prettySize = (fileSizeInBytes) => {
    var i = -1;
    var byteUnits = [" kB", " MB", " GB", " TB", "PB", "EB", "ZB", "YB"];
    do {
        fileSizeInBytes = fileSizeInBytes / 1024;
        i++;
    } while (fileSizeInBytes > 1024);

    return Math.max(fileSizeInBytes, 0.1).toFixed(1) + byteUnits[i];
}