'use strict';
function editBurg(id) {
  if (customization) return;
  closeDialogs('.stable');
  if (!layerIsOn('toggleIcons')) toggleIcons();
  if (!layerIsOn('toggleLabels')) toggleLabels();

  const burg = id || d3.event.target.dataset.id;
  elSelected = burgLabels.select("[data-id='" + burg + "']");
  burgLabels.selectAll('text').call(d3.drag().on('start', dragBurgLabel)).classed('draggable', true);
  updateBurgValues();

  const my = id || d3.event.target.tagName === 'text' ? 'center bottom-20' : 'center top+20';
  const at = id ? 'center' : d3.event.target.tagName === 'text' ? 'top' : 'bottom';
  const of = id ? 'svg' : d3.event.target;

  $('#burgEditor').dialog({
    title: 'Edit Burg',
    resizable: false,
    close: closeBurgEditor,
    position: {my, at, of, collision: 'fit'}
  });

  if (modules.editBurg) return;
  modules.editBurg = true;

  // add listeners
  document.getElementById('burgGroupShow').addEventListener('click', showGroupSection);
  document.getElementById('burgGroupHide').addEventListener('click', hideGroupSection);
  document.getElementById('burgSelectGroup').addEventListener('change', changeGroup);
  document.getElementById('burgInputGroup').addEventListener('change', createNewGroup);
  document.getElementById('burgAddGroup').addEventListener('click', toggleNewGroupInput);
  document.getElementById('burgRemoveGroup').addEventListener('click', removeBurgsGroup);

  document.getElementById('burgName').addEventListener('input', changeName);
  document.getElementById('burgNameReRandom').addEventListener('click', generateNameRandom);
  document.getElementById('burgType').addEventListener('input', changeType);
  document.getElementById('burgCulture').addEventListener('input', changeCulture);
  document.getElementById('burgNameReCulture').addEventListener('click', generateNameCulture);
  document.getElementById('burgPopulation').addEventListener('change', changePopulation);
  burgBody.querySelectorAll('.burgFeature').forEach((el) => el.addEventListener('click', toggleFeature));

  document.getElementById('burgStyleShow').addEventListener('click', showStyleSection);
  document.getElementById('burgStyleHide').addEventListener('click', hideStyleSection);
  document.getElementById('burgEditLabelStyle').addEventListener('click', editGroupLabelStyle);
  document.getElementById('burgEditIconStyle').addEventListener('click', editGroupIconStyle);
  document.getElementById('burgEditAnchorStyle').addEventListener('click', editGroupAnchorStyle);

  document.getElementById('burgSeeInMFCG').addEventListener('click', openInMFCG);
  document.getElementById('burgEditEmblem').addEventListener('click', openEmblemEdit);
  document.getElementById('burgRelocate').addEventListener('click', toggleRelocateBurg);
  document.getElementById('burglLegend').addEventListener('click', editBurgLegend);
  document.getElementById('burgLock').addEventListener('click', toggleBurgLockButton);
  document.getElementById('burgLock').addEventListener('mouseover', showBurgELockTip);
  document.getElementById('burgRemove').addEventListener('click', removeSelectedBurg);

  function updateBurgValues() {
    const id = +elSelected.attr('data-id');
    const b = pack.burgs[id];
    const province = pack.cells.province[b.cell];
    const provinceName = province ? pack.provinces[province].fullName + ', ' : '';
    const stateName = pack.states[b.state].fullName || pack.states[b.state].name;
    document.getElementById('burgProvinceAndState').innerHTML = provinceName + stateName;

    document.getElementById('burgName').value = b.name;
    document.getElementById('burgType').value = b.type || 'Generic';
    document.getElementById('burgPopulation').value = rn(b.population * populationRate.value * urbanization.value);
    document.getElementById('burgEditAnchorStyle').style.display = +b.port ? 'inline-block' : 'none';

    // update list and select culture
    const cultureSelect = document.getElementById('burgCulture');
    cultureSelect.options.length = 0;
    const cultures = pack.cultures.filter((c) => !c.removed);
    cultures.forEach((c) => cultureSelect.options.add(new Option(c.name, c.i, false, c.i === b.culture)));

    const temperature = grid.cells.temp[pack.cells.g[b.cell]];
    document.getElementById('burgTemperature').innerHTML = convertTemperature(temperature);
    document.getElementById('burgTemperatureLikeIn').innerHTML = getTemperatureLikeness(temperature);
    document.getElementById('burgElevation').innerHTML = getHeight(pack.cells.h[b.cell]);

    // toggle features
    if (b.capital) document.getElementById('burgCapital').classList.remove('inactive');
    else document.getElementById('burgCapital').classList.add('inactive');
    if (b.port) document.getElementById('burgPort').classList.remove('inactive');
    else document.getElementById('burgPort').classList.add('inactive');
    if (b.citadel) document.getElementById('burgCitadel').classList.remove('inactive');
    else document.getElementById('burgCitadel').classList.add('inactive');
    if (b.walls) document.getElementById('burgWalls').classList.remove('inactive');
    else document.getElementById('burgWalls').classList.add('inactive');
    if (b.plaza) document.getElementById('burgPlaza').classList.remove('inactive');
    else document.getElementById('burgPlaza').classList.add('inactive');
    if (b.temple) document.getElementById('burgTemple').classList.remove('inactive');
    else document.getElementById('burgTemple').classList.add('inactive');
    if (b.shanty) document.getElementById('burgShanty').classList.remove('inactive');
    else document.getElementById('burgShanty').classList.add('inactive');

    //toggle lock
    updateBurgLockIcon();

    // select group
    const group = elSelected.node().parentNode.id;
    const select = document.getElementById('burgSelectGroup');
    select.options.length = 0; // remove all options

    burgLabels.selectAll('g').each(function () {
      select.options.add(new Option(this.id, this.id, false, this.id === group));
    });

    // set emlem image
    const coaID = 'burgCOA' + id;
    COArenderer.trigger(coaID, b.coa);
    document.getElementById('burgEmblem').setAttribute('href', '#' + coaID);
  }

  // in °C, array from -1 °C; source: https://en.wikipedia.org/wiki/List_of_cities_by_average_temperature
  function getTemperatureLikeness(temperature) {
    if (temperature < -5) return 'Yakutsk';
    const cities = [
      'Snag (Yukon)',
      'Yellowknife (Canada)',
      'Okhotsk (Russia)',
      'Fairbanks (Alaska)',
      'Nuuk (Greenland)',
      'Murmansk', // -5 - 0
      'Arkhangelsk',
      'Anchorage',
      'Tromsø',
      'Reykjavik',
      'Riga',
      'Stockholm',
      'Halifax',
      'Prague',
      'Copenhagen',
      'London', // 1 - 10
      'Antwerp',
      'Paris',
      'Milan',
      'Batumi',
      'Rome',
      'Dubrovnik',
      'Lisbon',
      'Barcelona',
      'Marrakesh',
      'Alexandria', // 11 - 20
      'Tegucigalpa',
      'Guangzhou',
      'Rio de Janeiro',
      'Dakar',
      'Miami',
      'Jakarta',
      'Mogadishu',
      'Bangkok',
      'Aden',
      'Khartoum'
    ]; // 21 - 30
    if (temperature > 30) return 'Mecca';
    return cities[temperature + 5] || null;
  }

  function dragBurgLabel() {
    const tr = parseTransform(this.getAttribute('transform'));
    const dx = +tr[0] - d3.event.x,
      dy = +tr[1] - d3.event.y;

    d3.event.on('drag', function () {
      const x = d3.event.x,
        y = d3.event.y;
      this.setAttribute('transform', `translate(${dx + x},${dy + y})`);
      tip('Use dragging for fine-tuning only, to actually move burg use "Relocate" button', false, 'warning');
    });
  }

  function showGroupSection() {
    document.querySelectorAll('#burgBottom > button').forEach((el) => (el.style.display = 'none'));
    document.getElementById('burgGroupSection').style.display = 'inline-block';
  }

  function hideGroupSection() {
    document.querySelectorAll('#burgBottom > button').forEach((el) => (el.style.display = 'inline-block'));
    document.getElementById('burgGroupSection').style.display = 'none';
    document.getElementById('burgInputGroup').style.display = 'none';
    document.getElementById('burgInputGroup').value = '';
    document.getElementById('burgSelectGroup').style.display = 'inline-block';
  }

  function changeGroup() {
    const id = +elSelected.attr('data-id');
    moveBurgToGroup(id, this.value);
  }

  function toggleNewGroupInput() {
    if (burgInputGroup.style.display === 'none') {
      burgInputGroup.style.display = 'inline-block';
      burgInputGroup.focus();
      burgSelectGroup.style.display = 'none';
    } else {
      burgInputGroup.style.display = 'none';
      burgSelectGroup.style.display = 'inline-block';
    }
  }

  function createNewGroup() {
    if (!this.value) {
      tip('Please provide a valid group name', false, 'error');
      return;
    }
    const group = this.value
      .toLowerCase()
      .replace(/ /g, '_')
      .replace(/[^\w\s]/gi, '');

    if (document.getElementById(group)) {
      tip('Element with this id already exists. Please provide a unique name', false, 'error');
      return;
    }

    if (Number.isFinite(+group.charAt(0))) {
      tip('Group name should start with a letter', false, 'error');
      return;
    }

    const id = +elSelected.attr('data-id');
    const oldGroup = elSelected.node().parentNode.id;

    const label = document.querySelector("#burgLabels [data-id='" + id + "']");
    const icon = document.querySelector("#burgIcons [data-id='" + id + "']");
    const anchor = document.querySelector("#anchors [data-id='" + id + "']");
    if (!label || !icon) {
      ERROR && console.error('Cannot find label or icon elements');
      return;
    }

    const labelG = document.querySelector('#burgLabels > #' + oldGroup);
    const iconG = document.querySelector('#burgIcons > #' + oldGroup);
    const anchorG = document.querySelector('#anchors > #' + oldGroup);

    // just rename if only 1 element left
    const count = elSelected.node().parentNode.childElementCount;
    if (oldGroup !== 'cities' && oldGroup !== 'towns' && count === 1) {
      document.getElementById('burgSelectGroup').selectedOptions[0].remove();
      document.getElementById('burgSelectGroup').options.add(new Option(group, group, false, true));
      toggleNewGroupInput();
      document.getElementById('burgInputGroup').value = '';
      labelG.id = group;
      iconG.id = group;
      if (anchor) anchorG.id = group;
      return;
    }

    // create new groups
    document.getElementById('burgSelectGroup').options.add(new Option(group, group, false, true));
    toggleNewGroupInput();
    document.getElementById('burgInputGroup').value = '';

    const newLabelG = document.querySelector('#burgLabels').appendChild(labelG.cloneNode(false));
    newLabelG.id = group;
    const newIconG = document.querySelector('#burgIcons').appendChild(iconG.cloneNode(false));
    newIconG.id = group;
    if (anchor) {
      const newAnchorG = document.querySelector('#anchors').appendChild(anchorG.cloneNode(false));
      newAnchorG.id = group;
    }
    moveBurgToGroup(id, group);
  }

  function removeBurgsGroup() {
    const group = elSelected.node().parentNode;
    const basic = group.id === 'cities' || group.id === 'towns';

    const burgsInGroup = [];
    for (let i = 0; i < group.children.length; i++) {
      burgsInGroup.push(+group.children[i].dataset.id);
    }
    const burgsToRemove = burgsInGroup.filter((b) => !(pack.burgs[b].capital || pack.burgs[b].lock));
    const capital = burgsToRemove.length < burgsInGroup.length;

    const message = `Are you sure you want to remove
    ${basic || capital ? 'all unlocked elements in the group' : 'the entire burg group'}?
    <br>Please note that capital or locked burgs will not be deleted.
    <br><br>Burgs to be removed: ${burgsToRemove.length}`;
    confirmationDialog({title: 'Remove burg group', message, confirm: 'Remove', onConfirm: removeGroup});

    function removeGroup() {
      $(this).dialog('close');
      $('#burgEditor').dialog('close');
      hideGroupSection();
      burgsToRemove.forEach((b) => removeBurg(b));

      if (!basic && !capital) {
        // entirely remove group
        const labelG = document.querySelector('#burgLabels > #' + group.id);
        const iconG = document.querySelector('#burgIcons > #' + group.id);
        const anchorG = document.querySelector('#anchors > #' + group.id);
        if (labelG) labelG.remove();
        if (iconG) iconG.remove();
        if (anchorG) anchorG.remove();
      }
    }
  }

  function changeName() {
    const id = +elSelected.attr('data-id');
    pack.burgs[id].name = burgName.value;
    elSelected.text(burgName.value);
  }

  function generateNameRandom() {
    const base = rand(nameBases.length - 1);
    burgName.value = Names.getBase(base);
    changeName();
  }

  function changeType() {
    const id = +elSelected.attr('data-id');
    pack.burgs[id].type = this.value;
  }

  function changeCulture() {
    const id = +elSelected.attr('data-id');
    pack.burgs[id].culture = +this.value;
  }

  function generateNameCulture() {
    const id = +elSelected.attr('data-id');
    const culture = pack.burgs[id].culture;
    burgName.value = Names.getCulture(culture);
    changeName();
  }

  function changePopulation() {
    const id = +elSelected.attr('data-id');
    pack.burgs[id].population = rn(burgPopulation.value / populationRate.value / urbanization.value, 4);
  }

  function toggleFeature() {
    const id = +elSelected.attr('data-id');
    const b = pack.burgs[id];
    const feature = this.dataset.feature;
    const turnOn = this.classList.contains('inactive');
    if (feature === 'port') togglePort(id);
    else if (feature === 'capital') toggleCapital(id);
    else b[feature] = +turnOn;
    if (b[feature]) this.classList.remove('inactive');
    else if (!b[feature]) this.classList.add('inactive');

    if (b.port) document.getElementById('burgEditAnchorStyle').style.display = 'inline-block';
    else document.getElementById('burgEditAnchorStyle').style.display = 'none';
  }

  function toggleBurgLockButton() {
    const id = +elSelected.attr('data-id');
    toggleBurgLock(id);
    updateBurgLockIcon();
  }

  function updateBurgLockIcon() {
    const id = +elSelected.attr('data-id');
    const b = pack.burgs[id];
    if (b.lock) {
      document.getElementById('burgLock').classList.remove('icon-lock-open');
      document.getElementById('burgLock').classList.add('icon-lock');
    } else {
      document.getElementById('burgLock').classList.remove('icon-lock');
      document.getElementById('burgLock').classList.add('icon-lock-open');
    }
  }

  function showBurgELockTip() {
    const id = +elSelected.attr('data-id');
    showBurgLockTip(id);
  }

  function showStyleSection() {
    document.querySelectorAll('#burgBottom > button').forEach((el) => (el.style.display = 'none'));
    document.getElementById('burgStyleSection').style.display = 'inline-block';
  }

  function hideStyleSection() {
    document.querySelectorAll('#burgBottom > button').forEach((el) => (el.style.display = 'inline-block'));
    document.getElementById('burgStyleSection').style.display = 'none';
  }

  function editGroupLabelStyle() {
    const g = elSelected.node().parentNode.id;
    editStyle('labels', g);
  }

  function editGroupIconStyle() {
    const g = elSelected.node().parentNode.id;
    editStyle('burgIcons', g);
  }

  function editGroupAnchorStyle() {
    const g = elSelected.node().parentNode.id;
    editStyle('anchors', g);
  }

  function openInMFCG(event) {
    const id = elSelected.attr('data-id');
    const burg = pack.burgs[id];
    const defSeed = +(seed + id.padStart(4, 0));
    if (isCtrlClick(event)) {
      prompt(
        `Please provide a Medieval Fantasy City Generator seed. 
        Seed should be a number. Default seed is FMG map seed + burg id padded to 4 chars with zeros (${defSeed}). 
        Please note that if seed is custom, "Overworld" button from MFCG will open a different map`,
        {default: burg.MFCG || defSeed, step: 1, min: 1, max: 1e13 - 1},
        (v) => {
          burg.MFCG = v;
          openMFCG(v);
        }
      );
    } else openMFCG();

    function openMFCG(seed) {
      if (!seed && burg.MFCGlink) {
        openURL(burg.MFCGlink);
        return;
      }
      const cells = pack.cells;
      const name = elSelected.text();
      const size = Math.max(Math.min(rn(burg.population), 100), 6); // to be removed once change on MFDC is done
      const population = rn(burg.population * populationRate.value * urbanization.value);

      const s = burg.MFCG || defSeed;
      const cell = burg.cell;
      const hub = +cells.road[cell] > 50;
      const river = cells.r[cell] ? 1 : 0;

      const coast = +burg.port;
      const citadel = +burg.citadel;
      const walls = +burg.walls;
      const plaza = +burg.plaza;
      const temple = +burg.temple;
      const shanty = +burg.shanty;

      const sea = coast && cells.haven[burg.cell] ? getSeaDirections(burg.cell) : '';
      function getSeaDirections(i) {
        const p1 = cells.p[i];
        const p2 = cells.p[cells.haven[i]];
        let deg = (Math.atan2(p2[1] - p1[1], p2[0] - p1[0]) * 180) / Math.PI - 90;
        if (deg < 0) deg += 360;
        const norm = rn(normalize(deg, 0, 360) * 2, 2); // 0 = south, 0.5 = west, 1 = north, 1.5 = east
        return '&sea=' + norm;
      }

      const site = 'http://fantasycities.watabou.ru/?random=0&continuous=0';
      const url = `${site}&name=${name}&population=${population}&size=${size}&seed=${s}&hub=${hub}&river=${river}&coast=${coast}&citadel=${citadel}&plaza=${plaza}&temple=${temple}&walls=${walls}&shantytown=${shanty}${sea}`;
      openURL(url);
    }
  }

  function openEmblemEdit() {
    const id = +elSelected.attr('data-id'),
      burg = pack.burgs[id];
    editEmblem('burg', 'burgCOA' + id, burg);
  }

  function toggleRelocateBurg() {
    const toggler = document.getElementById('toggleCells');
    document.getElementById('burgRelocate').classList.toggle('pressed');
    if (document.getElementById('burgRelocate').classList.contains('pressed')) {
      viewbox.style('cursor', 'crosshair').on('click', relocateBurgOnClick);
      tip('Click on map to relocate burg. Hold Shift for continuous move', true);
      if (!layerIsOn('toggleCells')) {
        toggleCells();
        toggler.dataset.forced = true;
      }
    } else {
      clearMainTip();
      viewbox.on('click', clicked).style('cursor', 'default');
      if (layerIsOn('toggleCells') && toggler.dataset.forced) {
        toggleCells();
        toggler.dataset.forced = false;
      }
    }
  }

  function relocateBurgOnClick() {
    const cells = pack.cells;
    const point = d3.mouse(this);
    const cell = findCell(point[0], point[1]);
    const id = +elSelected.attr('data-id');
    const burg = pack.burgs[id];

    if (cells.h[cell] < 20) {
      tip('Cannot place burg into the water! Select a land cell', false, 'error');
      return;
    }

    if (cells.burg[cell] && cells.burg[cell] !== id) {
      tip('There is already a burg in this cell. Please select a free cell', false, 'error');
      return;
    }

    const newState = cells.state[cell];
    const oldState = burg.state;

    if (newState !== oldState && burg.capital) {
      tip('Capital cannot be relocated into another state!', false, 'error');
      return;
    }

    // change UI
    const x = rn(point[0], 2),
      y = rn(point[1], 2);
    burgIcons
      .select("[data-id='" + id + "']")
      .attr('transform', null)
      .attr('cx', x)
      .attr('cy', y);
    burgLabels
      .select("text[data-id='" + id + "']")
      .attr('transform', null)
      .attr('x', x)
      .attr('y', y);
    const anchor = anchors.select("use[data-id='" + id + "']");
    if (anchor.size()) {
      const size = anchor.attr('width');
      const xa = rn(x - size * 0.47, 2);
      const ya = rn(y - size * 0.47, 2);
      anchor.attr('transform', null).attr('x', xa).attr('y', ya);
    }

    // change data
    cells.burg[burg.cell] = 0;
    cells.burg[cell] = id;
    burg.cell = cell;
    burg.state = newState;
    burg.x = x;
    burg.y = y;
    if (burg.capital) pack.states[newState].center = burg.cell;

    if (d3.event.shiftKey === false) toggleRelocateBurg();
  }

  function editBurgLegend() {
    const id = elSelected.attr('data-id');
    const name = elSelected.text();
    editNotes('burg' + id, name);
  }

  function removeSelectedBurg() {
    const id = +elSelected.attr('data-id');
    if (pack.burgs[id].capital) {
      alertMessage.innerHTML = `You cannot remove the burg as it is a state capital.<br><br>
        Please change state capital first. You can do it using Burgs Editor (shift + T)`;
      $('#alert').dialog({
        resizable: false,
        title: 'Remove burg',
        buttons: {
          Ok: function () {
            $(this).dialog('close');
          }
        }
      });
    } else {
      const message = 'Are you sure you want to remove the burg? <br>This action cannot be reverted';
      const onConfirm = () => {
        removeBurg(id);
        $('#burgEditor').dialog('close');
      };
      confirmationDialog({title: 'Remove burg', message, confirm: 'Remove', onConfirm});
    }
  }

  function closeBurgEditor() {
    document.getElementById('burgRelocate').classList.remove('pressed');
    burgLabels.selectAll('text').call(d3.drag().on('drag', null)).classed('draggable', false);
    unselect();
  }
}