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];
};