'use strict';
function overviewMilitary() {
  if (customization) return;
  closeDialogs('#militaryOverview, .stable');
  if (!layerIsOn('toggleStates')) toggleStates();
  if (!layerIsOn('toggleBorders')) toggleBorders();
  if (!layerIsOn('toggleMilitary')) toggleMilitary();

  const body = document.getElementById('militaryBody');
  addLines();
  $('#militaryOverview').dialog();

  if (modules.overviewMilitary) return;
  modules.overviewMilitary = true;
  updateHeaders();

  $('#militaryOverview').dialog({
    title: 'Military Overview',
    resizable: false,
    width: fitContent(),
    position: {my: 'right top', at: 'right-10 top+10', of: 'svg', collision: 'fit'}
  });

  // add listeners
  document.getElementById('militaryOverviewRefresh').addEventListener('click', addLines);
  document.getElementById('militaryPercentage').addEventListener('click', togglePercentageMode);
  document.getElementById('militaryOptionsButton').addEventListener('click', militaryCustomize);
  document.getElementById('militaryRegimentsList').addEventListener('click', () => overviewRegiments(-1));
  document.getElementById('militaryOverviewRecalculate').addEventListener('click', militaryRecalculate);
  document.getElementById('militaryExport').addEventListener('click', downloadMilitaryData);
  document.getElementById('militaryWiki').addEventListener('click', () => wiki('Military-Forces'));

  body.addEventListener('change', function (ev) {
    const el = ev.target,
      line = el.parentNode,
      state = +line.dataset.id;
    changeAlert(state, line, +el.value);
  });

  body.addEventListener('click', function (ev) {
    const el = ev.target,
      line = el.parentNode,
      state = +line.dataset.id;
    if (el.tagName === 'SPAN') overviewRegiments(state);
  });

  // update military types in header and tooltips
  function updateHeaders() {
    const header = document.getElementById('militaryHeader');
    header.querySelectorAll('.removable').forEach((el) => el.remove());
    const insert = (html) => document.getElementById('militaryTotal').insertAdjacentHTML('beforebegin', html);
    for (const u of options.military) {
      const label = capitalize(u.name.replace(/_/g, ' '));
      insert(`<div data-tip="State ${u.name} units number. Click to sort" class="sortable removable" data-sortby="${u.name}">${label}&nbsp;</div>`);
    }
    header.querySelectorAll('.removable').forEach(function (e) {
      e.addEventListener('click', function () {
        sortLines(this);
      });
    });
  }

  // add line for each state
  function addLines() {
    body.innerHTML = '';
    let lines = '';
    const states = pack.states.filter((s) => s.i && !s.removed);

    for (const s of states) {
      const population = rn((s.rural + s.urban * urbanization) * populationRate);
      const getForces = (u) => s.military.reduce((s, r) => s + (r.u[u.name] || 0), 0);
      const total = options.military.reduce((s, u) => s + getForces(u) * u.crew, 0);
      const rate = (total / population) * 100;

      const sortData = options.military.map((u) => `data-${u.name}="${getForces(u)}"`).join(' ');
      const lineData = options.military.map((u) => `<div data-type="${u.name}" data-tip="State ${u.name} units number">${getForces(u)}</div>`).join(' ');

      lines += `<div class="states" data-id=${s.i} data-state="${s.name}" ${sortData} data-total="${total}" data-population="${population}" data-rate="${rate}" data-alert="${s.alert}">
        <svg data-tip="${s.fullName}" width=".9em" height=".9em" style="margin-bottom:-1px"><rect x="0" y="0" width="100%" height="100%" fill="${s.color}" class="fillRect"></svg>
        <input data-tip="${s.fullName}" style="width:6em" value="${s.name}" readonly>
        ${lineData}
        <div data-type="total" data-tip="Total state military personnel (considering crew)" style="font-weight: bold">${si(total)}</div>
        <div data-type="population" data-tip="State population">${si(population)}</div>
        <div data-type="rate" data-tip="Military personnel rate (% of state population). Depends on war alert">${rn(rate, 2)}%</div>
        <input data-tip="War Alert. Editable modifier to military forces number, depends of political situation" style="width:4.1em" type="number" min=0 step=.01 value="${rn(s.alert, 2)}">
        <span data-tip="Show regiments list" class="icon-list-bullet pointer"></span>
      </div>`;
    }
    body.insertAdjacentHTML('beforeend', lines);
    updateFooter();

    // add listeners
    body.querySelectorAll('div.states').forEach((el) => el.addEventListener('mouseenter', (ev) => stateHighlightOn(ev)));
    body.querySelectorAll('div.states').forEach((el) => el.addEventListener('mouseleave', (ev) => stateHighlightOff(ev)));

    if (body.dataset.type === 'percentage') {
      body.dataset.type = 'absolute';
      togglePercentageMode();
    }
    applySorting(militaryHeader);
  }

  function changeAlert(state, line, alert) {
    const s = pack.states[state];
    const dif = s.alert || alert ? alert / s.alert : 0; // modifier
    s.alert = line.dataset.alert = alert;

    s.military.forEach((r) => {
      Object.keys(r.u).forEach((u) => (r.u[u] = rn(r.u[u] * dif))); // change units value
      r.a = d3.sum(Object.values(r.u)); // change total
      armies.select(`g>g#regiment${s.i}-${r.i}>text`).text(Military.getTotal(r)); // change icon text
    });

    const getForces = (u) => s.military.reduce((s, r) => s + (r.u[u.name] || 0), 0);
    options.military.forEach((u) => (line.dataset[u.name] = line.querySelector(`div[data-type='${u.name}']`).innerHTML = getForces(u)));

    const population = rn((s.rural + s.urban * urbanization) * populationRate);
    const total = (line.dataset.total = options.military.reduce((s, u) => s + getForces(u) * u.crew, 0));
    const rate = (line.dataset.rate = (total / population) * 100);
    line.querySelector("div[data-type='total']").innerHTML = si(total);
    line.querySelector("div[data-type='rate']").innerHTML = rn(rate, 2) + '%';

    updateFooter();
  }

  function updateFooter() {
    const lines = Array.from(body.querySelectorAll(':scope > div'));
    const statesNumber = (militaryFooterStates.innerHTML = pack.states.filter((s) => s.i && !s.removed).length);
    const total = d3.sum(lines.map((el) => el.dataset.total));
    militaryFooterForcesTotal.innerHTML = si(total);
    militaryFooterForces.innerHTML = si(total / statesNumber);
    militaryFooterRate.innerHTML = rn(d3.sum(lines.map((el) => el.dataset.rate)) / statesNumber, 2) + '%';
    militaryFooterAlert.innerHTML = rn(d3.sum(lines.map((el) => el.dataset.alert)) / statesNumber, 2);
  }

  function stateHighlightOn(event) {
    const state = +event.target.dataset.id;
    if (customization || !state) return;
    armies
      .select('#army' + state)
      .transition()
      .duration(2000)
      .style('fill', '#ff0000');

    if (!layerIsOn('toggleStates')) return;
    const d = regions.select('#state' + state).attr('d');

    const path = debug.append('path').attr('class', 'highlight').attr('d', d).attr('fill', 'none').attr('stroke', 'red').attr('stroke-width', 1).attr('opacity', 1).attr('filter', 'url(#blur1)');

    const l = path.node().getTotalLength(),
      dur = (l + 5000) / 2;
    const i = d3.interpolateString('0,' + l, l + ',' + l);
    path
      .transition()
      .duration(dur)
      .attrTween('stroke-dasharray', function () {
        return (t) => i(t);
      });
  }

  function stateHighlightOff(event) {
    debug.selectAll('.highlight').each(function () {
      d3.select(this).transition().duration(1000).attr('opacity', 0).remove();
    });

    const state = +event.target.dataset.id;
    armies
      .select('#army' + state)
      .transition()
      .duration(1000)
      .style('fill', null);
  }

  function togglePercentageMode() {
    if (body.dataset.type === 'absolute') {
      body.dataset.type = 'percentage';
      const lines = body.querySelectorAll(':scope > div');
      const array = Array.from(lines),
        cache = [];

      const total = function (type) {
        if (cache[type]) cache[type];
        cache[type] = d3.sum(array.map((el) => +el.dataset[type]));
        return cache[type];
      };

      lines.forEach(function (el) {
        el.querySelectorAll('div').forEach(function (div) {
          const type = div.dataset.type;
          if (type === 'rate') return;
          div.textContent = total(type) ? rn((+el.dataset[type] / total(type)) * 100) + '%' : '0%';
        });
      });
    } else {
      body.dataset.type = 'absolute';
      addLines();
    }
  }

  function militaryCustomize() {
    const types = ['melee', 'ranged', 'mounted', 'machinery', 'naval', 'armored', 'aviation', 'magical'];
    const table = document.getElementById('militaryOptions').querySelector('tbody');
    removeUnitLines();
    options.military.map((u) => addUnitLine(u));

    $('#militaryOptions').dialog({
      title: 'Edit Military Units',
      resizable: false,
      width: fitContent(),
      position: {my: 'center', at: 'center', of: 'svg'},
      buttons: {
        Apply: applyMilitaryOptions,
        Add: () => addUnitLine({icon: '🛡️', name: 'custom' + militaryOptionsTable.rows.length, rural: 0.2, urban: 0.5, crew: 1, power: 1, type: 'melee'}),
        Restore: restoreDefaultUnits,
        Cancel: function () {
          $(this).dialog('close');
        }
      },
      open: function () {
        const buttons = $(this).dialog('widget').find('.ui-dialog-buttonset > button');
        buttons[0].addEventListener('mousemove', () => tip("Apply military units settings. <span style='color:#cb5858'>All forces will be recalculated!</span>"));
        buttons[1].addEventListener('mousemove', () => tip('Add new military unit to the table'));
        buttons[2].addEventListener('mousemove', () => tip('Restore default military units and settings'));
        buttons[3].addEventListener('mousemove', () => tip('Close the window without saving the changes'));
      }
    });

    function removeUnitLines() {
      table.querySelectorAll('tr').forEach((el) => el.remove());
    }

    function addUnitLine(u) {
      const row = document.createElement('tr');
      row.innerHTML = `<td><button type="button" data-tip="Click to select unit icon">${u.icon || ' '}</button></td>
        <td><input data-tip="Type unit name. If name is changed for existing unit, old unit will be replaced" value="${u.name}"></td>
        <td><input data-tip="Enter conscription percentage for rural population" type="number" min=0 max=100 step=.01 value="${u.rural}"></td>
        <td><input data-tip="Enter conscription percentage for urban population" type="number" min=0 max=100 step=.01 value="${u.urban}"></td>
        <td><input data-tip="Enter average number of people in crew (used for total personnel calculation)" type="number" min=1 step=1 value="${u.crew}"></td>
        <td><input data-tip="Enter military power (used for battle simulation)" type="number" min=0 step=.1 value="${u.power}"></td>
        <td><select data-tip="Select unit type to apply special rules on forces recalculation">${types
          .map((t) => `<option ${u.type === t ? 'selected' : ''} value="${t}">${t}</option>`)
          .join(' ')}</select></td>
        <td data-tip="Check if unit is separate and can be stacked only with units of the same type">
          <input id="${u.name}Separate" type="checkbox" class="checkbox" ${u.separate ? 'checked' : ''}>
          <label for="${u.name}Separate" class="checkbox-label"></label></td>
        <td data-tip="Remove the unit"><span data-tip="Remove unit type" class="icon-trash-empty pointer" onclick="this.parentElement.parentElement.remove();"></span></td>`;
      row.querySelector('button').addEventListener('click', function (e) {
        selectIcon(this.innerHTML, (v) => (this.innerHTML = v));
      });
      table.appendChild(row);
    }

    function restoreDefaultUnits() {
      removeUnitLines();
      Military.getDefaultOptions().map((u) => addUnitLine(u));
    }

    function applyMilitaryOptions() {
      const unitLines = Array.from(table.querySelectorAll('tr'));
      const names = unitLines.map((r) => r.querySelector('input').value.replace(/[&\/\\#, +()$~%.'":*?<>{}]/g, '_'));
      if (new Set(names).size !== names.length) {
        tip('All units should have unique names', false, 'error');
        return;
      }

      $('#militaryOptions').dialog('close');
      options.military = unitLines.map((r, i) => {
        const [icon, name, rural, urban, crew, power, type, separate] = Array.from(r.querySelectorAll('input, select, button')).map((d) => {
          let value = d.value;
          if (d.type === 'number') value = +d.value || 0;
          if (d.type === 'checkbox') value = +d.checked || 0;
          if (d.type === 'button') value = d.innerHTML || '⠀';
          return value;
        });
        return {icon, name: names[i], rural, urban, crew, power, type, separate};
      });
      localStorage.setItem('military', JSON.stringify(options.military));
      Military.generate();
      updateHeaders();
      addLines();
    }
  }

  function militaryRecalculate() {
    alertMessage.innerHTML = 'Are you sure you want to recalculate military forces for all states?<br>Regiments for all states will be regenerated';
    $('#alert').dialog({
      resizable: false,
      title: 'Remove regiment',
      buttons: {
        Recalculate: function () {
          $(this).dialog('close');
          Military.generate();
          addLines();
        },
        Cancel: function () {
          $(this).dialog('close');
        }
      }
    });
  }

  function downloadMilitaryData() {
    const units = options.military.map((u) => u.name);
    let data = 'Id,State,' + units.map((u) => capitalize(u)).join(',') + ',Total,Population,Rate,War Alert\n'; // headers

    body.querySelectorAll(':scope > div').forEach(function (el) {
      data += el.dataset.id + ',';
      data += el.dataset.state + ',';
      data += units.map((u) => el.dataset[u]).join(',') + ',';
      data += el.dataset.total + ',';
      data += el.dataset.population + ',';
      data += rn(el.dataset.rate, 2) + '%,';
      data += el.dataset.alert + '\n';
    });

    const name = getFileName('Military') + '.csv';
    downloadFile(data, name);
  }
}