function flightTime(a, b) {
  var days = Math.round(((b - a) / 86400) * 100) / 100;
  var months = Math.round(days / 30);
  var years = Math.round(months / 12);
  if (days < 30) {
    return "" + days + " " + dictionnary.jours;
  } else if (days >= 30 && days < 365) {
    if (months > 1) {
      return "" + months + " " + dictionnary.mois_pluriel;
    } else {
      return "" + months + " " + dictionnary.mois;
    }
  } else if (days >= 365) {
    if (years > 1) {
      return "" + years + " " + dictionnary.ans;
    } else {
      return "" + years + " " + dictionnary.an;
    }
  }
}

//load
var nPages;
var nPagesLoaded = 1;
$.post("getAnthology.php", function (pages) {
  pages = $.parseJSON(pages);
  nPages = Number(pages.nPages);
});

function displayAnthology() {
  // clean and display first page
  $("#anthologyItems").html("");
  nPagesLoaded = 1;
  $.post("getAnthology.php?page=1", function (result) {
    results = $.parseJSON(result);
    var momentLocale = lang;
    if (momentLocale == "zh") {
      momentLocale = "zh-cn";
    } //troubleshot for chinese
    moment.locale(momentLocale);
    for (var i in results) {
      addAnthologyLine(results[i]);
    }
  });
}

$("#anthology").scroll(function () {
  if ($("#anthology").scrollTop() + 700 > $("#anthologyItems").height()) {
    if (nPagesLoaded < nPages) {
      nPagesLoaded++;
      console.log("Loading anthology page " + nPagesLoaded + "/" + nPages);
      $.post("getAnthology.php?page=" + nPagesLoaded + "", function (result) {
        results = $.parseJSON(result);
        var momentLocale = lang;
        if (momentLocale == "zh") {
          momentLocale = "zh-cn";
        } //troubleshot for chinese
        moment.locale(momentLocale);
        for (var i in results) {
          addAnthologyLine(results[i]);
        }
      });
    }
  }
});

function addAnthologyLine(results) {
  if (lang == "ar") {
    // arabic : rtl + add <br>
    $("#anthologyItems").append(
      '<small style="float:right">' +
        dictionnary.origine +
        ": <b>" +
        results.startName +
        "</b> &bull; " +
        dictionnary.destination +
        ": <b>" +
        results.destName +
        "</b> &bull; " +
        dictionnary.date_arrivee +
        ": <b>" +
        moment(Number(results.deliveryTime) * 1000).format("LL") +
        "</b> &bull; " +
        dictionnary.temps_de_vol +
        ": <b>" +
        flightTime(Number(results.startTime), Number(results.deliveryTime)) +
        "</b></small><br><br>" +
        results.message +
        "<br><hr><br>"
    );
  } else {
    $("#anthologyItems").append(
      "<small>" +
        dictionnary.origine +
        ": <b>" +
        results.startName +
        "</b> &bull; " +
        dictionnary.destination +
        ": <b>" +
        results.destName +
        "</b> &bull; " +
        dictionnary.date_arrivee +
        ": <b>" +
        moment(Number(results.deliveryTime) * 1000).format("LL") +
        "</b> &bull; " +
        dictionnary.temps_de_vol +
        ": <b>" +
        flightTime(Number(results.startTime), Number(results.deliveryTime)) +
        "</b></small><br><br>" +
        results.message +
        "<br><hr><br>"
    );
  }
}

$.post("avionJournalier.php", function (result) {
  result = result.replace(/'/g, '"');
  result = $.parseJSON(result);
  nbPlane = Number(result.nAvion);
  console.log(result);
  $("#buttonNewPlane").val(
    "Lancer un avion-poème " + Number(result.nAvion) + "/100"
  );
  $("#buttonNewPlane").on("click", () => {
    window.location.replace("/");
  });
});

$(document).ready(function () {
  $.getJSON("lang/" + lang + "", function (s) {
    displayAnthology();
    $("#anthologyTitle").html(s.anthologie);
    $("#anthologyDisclaimer").html(s.suppr_message_public);
    $("#closeAnthologyAbout").html(s.retour_carte);
  });
});