{%
local function isKindExpandable(kind)
  return kind ~= "Manual"
end

local function isSectionEmpty(mod, sections)
  if type(sections) == "table" then
    for _, v in pairs(mod.items) do
      for _, section in pairs(sections) do
        if v.section_id == section then
          return false
        end
      end
    end
  else
    local section = sections
    for _, v in pairs(mod.items) do
      if v.section_id == section then
        return false
      end
    end
  end
  return true
end

local function kinds()
  local kinds = {"Manual", "Code", "Enum"}

  local kindIndices = {}
  for i, v in pairs(kinds) do
    kindIndices[v] = i
  end

  local t = {}
  for kind, mods, type in ldoc.kinds() do
    local entry = {kind, mods, type}
    local idx = kindIndices[kind]

    if idx then
      t[idx] = entry
    else
      t[#t + 1] = entry
    end
  end

  local idx
  return function(t, i)
    i = i + 1
    local v = t[i]
    if v then
      return i, table.unpack(v)
    end
  end, t, 0
end
%}

<nav>
  <header>
    {% if (not ldoc.root) then %}
      <h1><a href="{* ldoc.url('') *}">Lua For Barotrauma Documentation</a></h1>
    {% end %}
    <input id="search" type="search" autocomplete="off" placeholder="Search..." />
  </header>

  <section>
    {% for _, kind, mods, type in kinds() do %}
      {% if (ldoc.allowed_in_contents(type, mod)) then %}
        <details class="category" open>
          <summary>
            <h2>{{kind}}</h2>
          </summary>

          <ul>
            {% for currentMod in mods() do %}
              {% local name = ldoc.display_name(currentMod) %}
              <li>
                {% if (isKindExpandable(kind)) then %}
                  <details {{currentMod.name == (mod or {}).name and "open" or ""}}>
                  <summary><a href="{* ldoc.ref_to_module(currentMod) *}">{{name}}</a></summary>

                  <ul>
                {% else %}
                  <a href="{* ldoc.ref_to_module(currentMod) *}">{{name}}</a>
                {% end %}

                {% if (isKindExpandable(kind)) then
                  currentMod.items:sort(function(a, b)
                    return a.name < b.name
                  end)
                end %}

                {% if not isSectionEmpty(currentMod, "function") then %}
                <li>
                  <label class="colorful-label">FUNCTIONS</label>
                </li>
                {% end %}

                {% for k, v in pairs(currentMod.items) do %}
                  {% if (v.section_id == "function") then %}
                    <li>
                      {* ldoc.sidebar_item(v, currentMod) *}
                    </li>
                  {% end %}
                {% end %}

                {% if not isSectionEmpty(currentMod, "table") then %}
                <li>
                  <label class="colorful-label">TABLES</label>
                </li>
                {% end %}

                {% for k, v in pairs(currentMod.items) do %}
                  {% if (v.section_id == "table") then %}
                    <li>
                      {* ldoc.sidebar_item(v, currentMod) *}
                    </li>
                  {% end %}
                {% end %}

                {% if not isSectionEmpty(currentMod, "field") then %}
                <li>
                  <label class="colorful-label">FIELDS</label>
                </li>
                {% end %}

                {% for k, v in pairs(currentMod.items) do %}
                  {% if (v.section_id == "field") then %}
                    <li>
                      {* ldoc.sidebar_item(v, currentMod) *}
                    </li>
                  {% end %}
                {% end %}

                {% if not isSectionEmpty(currentMod, "hook") then %}
                <li>
                  <label class="colorful-label">HOOKS</label>
                </li>
                {% end %}

                {% for k, v in pairs(currentMod.items) do %}
                  {% if (v.section_id == "hook") then %}
                    <li>
                      {* ldoc.sidebar_item(v, currentMod) *}
                    </li>
                  {% end %}
                {% end %}

                {% if (isKindExpandable(kind)) then %}
                  </ul>
                  </details>
                {% end %}
              </li>
            {% end %}
          </ul>
        </details>
      {% end %}
    {% end %}
  </section>
</nav>