(function () {
  var config = Object.assign({
    apiBaseUrl: "http://localhost:9098"
  }, window.VISITOR_LOGIN_CONFIG || {});

  var state = {
    areaTree: [],
    flatAreas: [],
    selectedAreaId: null,
    modalAreaId: null,
    cascaderPath: [],
    rows: [],
    total: 0,
    pageNum: 1,
    pageSize: 10,
    mode: "add",
    currentMachineId: null
  };

  init();

  function init() {
    if (!getToken()) {
      redirectToLogin();
      return;
    }
    bindLayoutActions();
    bindPageActions();
    applyUserInfo(readLoginUser());
    loadProfileName();
    loadAreaTree();
    loadMachines();
  }

  function bindLayoutActions() {
    var userMenuButton = document.getElementById("userMenuButton");
    var userDropdown = document.getElementById("userDropdown");
    var fullscreenButton = document.querySelector(".icon-button");

    userMenuButton.addEventListener("click", function (event) {
      event.stopPropagation();
      var hidden = userDropdown.hidden;
      userDropdown.hidden = !hidden;
      userMenuButton.setAttribute("aria-expanded", String(hidden));
    });

    userDropdown.addEventListener("click", function (event) {
      var action = event.target.getAttribute("data-action");
      if (!action) {
        return;
      }
      userDropdown.hidden = true;
      userMenuButton.setAttribute("aria-expanded", "false");
      if (action === "home") {
        window.location.href = "./dashboard.html";
      } else if (action === "logout") {
        logout();
      }
    });

    document.addEventListener("click", function () {
      userDropdown.hidden = true;
      userMenuButton.setAttribute("aria-expanded", "false");
      closeMoreMenus();
      closeAreaCascader();
    });

    fullscreenButton.addEventListener("click", function () {
      if (!document.fullscreenElement && document.documentElement.requestFullscreen) {
        document.documentElement.requestFullscreen();
      } else if (document.exitFullscreen) {
        document.exitFullscreen();
      }
    });
  }

  function bindPageActions() {
    document.getElementById("areaSearchButton").addEventListener("click", loadAreaTree);
    document.getElementById("areaSearchInput").addEventListener("keydown", function (event) {
      if (event.key === "Enter") {
        loadAreaTree();
      }
    });
    document.getElementById("queryForm").addEventListener("submit", function (event) {
      event.preventDefault();
      state.pageNum = 1;
      loadMachines();
    });
    document.getElementById("resetButton").addEventListener("click", function () {
      document.getElementById("queryDeviceName").value = "";
      document.getElementById("queryDeviceId").value = "";
      document.getElementById("queryEnabled").value = "";
      document.getElementById("areaSearchInput").value = "";
      state.selectedAreaId = null;
      state.pageNum = 1;
      loadAreaTree();
      loadMachines();
    });
    document.getElementById("addMachineButton").addEventListener("click", function () {
      openMachineModal("add", {});
    });
    document.getElementById("machineForm").addEventListener("submit", function (event) {
      event.preventDefault();
      saveMachine();
    });
    document.querySelectorAll("[data-close='machine']").forEach(function (button) {
      button.addEventListener("click", closeMachineModal);
    });
    document.getElementById("machineAreaCascaderTrigger").addEventListener("click", function (event) {
      event.stopPropagation();
      toggleAreaCascader();
    });
    document.getElementById("machineAreaCascaderPanel").addEventListener("click", function (event) {
      event.stopPropagation();
    });
  }

  function loadProfileName() {
    apiRequest("/system/user/profile", { method: "GET" }).then(function (result) {
      applyUserInfo(result.data || {});
    }).catch(function () {
      applyUserInfo(readLoginUser());
    });
  }

  function loadAreaTree() {
    apiRequest("/system/visit/area/tree", {
      method: "POST",
      body: JSON.stringify({
        areaName: document.getElementById("areaSearchInput").value.trim()
      })
    }).then(function (result) {
      state.areaTree = Array.isArray(result.data) ? result.data : [];
      state.flatAreas = flattenAreas(state.areaTree);
      renderAreaTree();
      renderAreaCascaderPanel();
    }).catch(function (error) {
      state.areaTree = [];
      state.flatAreas = [];
      state.modalAreaId = null;
      state.cascaderPath = [];
      renderAreaTree();
      renderAreaCascaderPanel();
      updateCascaderText();
      AppMessage.error("操作失败：" + (error.message || "区域加载失败"));
    });
  }

  function loadMachines() {
    var enabledValue = document.getElementById("queryEnabled").value;
    var payload = {
      pageNum: state.pageNum,
      pageSize: state.pageSize,
      areaId: state.selectedAreaId,
      deviceName: document.getElementById("queryDeviceName").value.trim(),
      deviceId: document.getElementById("queryDeviceId").value.trim()
    };
    if (enabledValue) {
      payload.enabled = enabledValue === "true";
    }

    apiRequest("/system/visitor/machine/page", {
      method: "POST",
      body: JSON.stringify(payload)
    }).then(function (result) {
      var data = result.data || {};
      state.rows = data.records || data.list || [];
      state.total = Number(data.total || state.rows.length || 0);
      state.pageNum = Number(data.current || data.pageNum || state.pageNum);
      state.pageSize = Number(data.size || data.pageSize || state.pageSize);
      renderTable();
      renderPagination();
    }).catch(function (error) {
      state.rows = [];
      state.total = 0;
      renderTable();
      renderPagination();
      AppMessage.error("操作失败：" + (error.message || "访客机列表加载失败"));
    });
  }

  function renderAreaTree() {
    var root = document.getElementById("areaTree");
    root.innerHTML = state.areaTree.map(function (area) {
      return renderAreaNode(area, 1);
    }).join("");

    root.querySelectorAll(".machine-area-row").forEach(function (row) {
      row.addEventListener("click", function () {
        state.selectedAreaId = Number(row.getAttribute("data-id"));
        state.pageNum = 1;
        renderAreaTree();
        loadMachines();
      });
    });

    root.querySelectorAll(".machine-area-toggle").forEach(function (toggle) {
      toggle.addEventListener("click", function (event) {
        event.stopPropagation();
        toggle.closest(".machine-area-node").classList.toggle("collapsed");
      });
    });
  }

  function renderAreaNode(area, level) {
    var children = Array.isArray(area.children) ? area.children : [];
    var active = state.selectedAreaId === area.areaId;
    var childHtml = children.length ? '<div class="machine-area-children">' + children.map(function (child) {
      return renderAreaNode(child, level + 1);
    }).join("") + '</div>' : "";
    return [
      '<div class="machine-area-node' + (children.length ? "" : " no-children") + '">',
      '  <div class="machine-area-row level-' + level + (active ? " active" : "") + '" data-id="' + area.areaId + '">',
      '    <span class="machine-area-toggle"></span>',
      '    <span class="' + (level === 1 ? "machine-folder-icon" : "machine-file-icon") + '"></span>',
      '    <span>' + escapeHtml(area.areaName || "-") + '</span>',
      '  </div>',
      childHtml,
      '</div>'
    ].join("");
  }

  function renderTable() {
    var body = document.getElementById("machineTableBody");
    var empty = document.getElementById("machineEmpty");
    empty.hidden = state.rows.length > 0;
    body.innerHTML = state.rows.map(function (item, index) {
      var rowIndex = (state.pageNum - 1) * state.pageSize + index + 1;
      return [
        '<tr>',
        '  <td>' + rowIndex + '</td>',
        '  <td>' + escapeHtml(item.deviceName || "-") + '</td>',
        '  <td>' + escapeHtml(item.brand || "-") + '</td>',
        '  <td>' + escapeHtml(item.deviceId || "-") + '</td>',
        '  <td title="' + escapeHtml(item.fingerprint || "") + '">' + escapeHtml(item.fingerprint || "-") + '</td>',
        '  <td>' + escapeHtml(item.areaName || "-") + '</td>',
        '  <td>' + renderEnabledStatus(item.enabled) + '</td>',
        '  <td>' + renderOnlineStatus(item.onlineStatus) + '</td>',
        '  <td title="' + escapeHtml(item.remark || "") + '">' + escapeHtml(item.remark || "-") + '</td>',
        '  <td class="machine-action-cell"><div class="machine-actions">',
        '    <button type="button" data-action="edit" data-id="' + item.machineId + '">编辑</button>',
        '    <button type="button" data-action="more" data-id="' + item.machineId + '">更多</button>',
        renderMoreMenu(item),
        '  </div></td>',
        '</tr>'
      ].join("");
    }).join("");

    body.querySelectorAll("[data-action]").forEach(function (button) {
      button.addEventListener("click", function (event) {
        event.stopPropagation();
        var action = button.getAttribute("data-action");
        var machineId = Number(button.getAttribute("data-id"));
        if (action === "edit") {
          editMachine(machineId);
        } else if (action === "more") {
          toggleMoreMenu(button);
        } else if (action === "logout") {
          confirmMachineAction(machineId, "是否确认注销设备？", "注销后设备在线状态将变为未激活", logoutMachine);
        } else if (action === "disable") {
          changeEnabled(machineId, false);
        } else if (action === "enable") {
          changeEnabled(machineId, true);
        } else if (action === "delete") {
          confirmMachineAction(machineId, "是否确认删除数据？", "删除操作不可撤回，请谨慎操作", deleteMachine);
        }
      });
    });
  }

  function renderMoreMenu(item) {
    var statusAction = item.enabled
      ? '<button type="button" data-action="disable" data-id="' + item.machineId + '"><span class="more-icon disable"></span>禁用</button>'
      : '<button type="button" data-action="enable" data-id="' + item.machineId + '"><span class="more-icon disable"></span>启用</button>';
    return [
      '<div class="more-menu" hidden>',
      '  <button type="button" data-action="logout" data-id="' + item.machineId + '"><span class="more-icon logout"></span>注销</button>',
      statusAction,
      '  <button type="button" data-action="delete" data-id="' + item.machineId + '"><span class="more-icon delete"></span>删除</button>',
      '</div>'
    ].join("");
  }

  function renderEnabledStatus(enabled) {
    var className = enabled ? "enabled" : "disabled";
    var label = enabled ? "启用" : "禁用";
    return '<span class="status-pill ' + className + '">' + label + '</span>';
  }

  function renderOnlineStatus(status) {
    var className = "unactivated";
    if (status === "ONLINE") {
      className = "online";
    } else if (status === "OFFLINE") {
      className = "offline";
    }
    return '<span class="status-pill ' + className + '">' + escapeHtml(formatOnlineStatus(status)) + '</span>';
  }

  function renderPagination() {
    var root = document.getElementById("pagination");
    var totalPage = Math.max(1, Math.ceil(state.total / state.pageSize));
    var pages = [];
    for (var page = 1; page <= Math.min(totalPage, 5); page++) {
      pages.push('<button type="button" class="' + (page === state.pageNum ? "active" : "") + '" data-page="' + page + '">' + page + '</button>');
    }
    if (totalPage > 5) {
      pages.push('<span>...</span><button type="button" data-page="' + totalPage + '">' + totalPage + '</button>');
    }
    root.innerHTML = [
      '<span>共 ' + state.total + ' 条</span>',
      '<span>每页 <select id="pageSizeSelect"><option value="10">10</option><option value="20">20</option><option value="50">50</option></select> 条</span>',
      pages.join(""),
      '<span>前往 <input id="jumpPageInput" value="' + state.pageNum + '"> 页</span>'
    ].join("");
    document.getElementById("pageSizeSelect").value = String(state.pageSize);
    root.querySelectorAll("[data-page]").forEach(function (button) {
      button.addEventListener("click", function () {
        state.pageNum = Number(button.getAttribute("data-page"));
        loadMachines();
      });
    });
    document.getElementById("pageSizeSelect").addEventListener("change", function (event) {
      state.pageSize = Number(event.target.value);
      state.pageNum = 1;
      loadMachines();
    });
    document.getElementById("jumpPageInput").addEventListener("keydown", function (event) {
      if (event.key === "Enter") {
        var page = Math.min(totalPage, Math.max(1, Number(event.target.value) || 1));
        state.pageNum = page;
        loadMachines();
      }
    });
  }

  function openMachineModal(mode, data) {
    state.mode = mode;
    state.currentMachineId = mode === "edit" ? data.machineId : null;
    document.getElementById("machineModalTitle").textContent = mode === "edit" ? "编辑访客机" : "新增访客机";
    setCascaderValue(data.areaId || state.selectedAreaId || "");
    document.getElementById("machineDeviceName").value = data.deviceName || "";
    document.getElementById("machineBrand").value = data.brand || "";
    document.getElementById("machineDeviceId").value = data.deviceId || "";
    document.getElementById("machineRemark").value = data.remark || "";
    document.getElementById("machineEnabled").checked = typeof data.enabled === "boolean" ? data.enabled : true;
    document.getElementById("machineModal").hidden = false;
  }

  function closeMachineModal() {
    document.getElementById("machineModal").hidden = true;
    closeAreaCascader();
  }

  function editMachine(machineId) {
    apiRequest("/system/visitor/machine/detail", {
      method: "POST",
      body: JSON.stringify({ machineId: machineId })
    }).then(function (result) {
      openMachineModal("edit", result.data || {});
    }).catch(function (error) {
      AppMessage.error("操作失败：" + (error.message || "设备详情加载失败"));
    });
  }

  function saveMachine() {
    var saveButton = document.getElementById("saveMachineButton");
    var payload = {
      areaId: Number(state.modalAreaId || 0),
      deviceName: document.getElementById("machineDeviceName").value.trim(),
      brand: document.getElementById("machineBrand").value.trim(),
      deviceId: document.getElementById("machineDeviceId").value.trim(),
      remark: document.getElementById("machineRemark").value.trim(),
      enabled: document.getElementById("machineEnabled").checked
    };
    if (!payload.areaId) {
      AppMessage.error("操作失败：请选择区域");
      return;
    }
    if (!payload.deviceName) {
      AppMessage.error("操作失败：请输入设备名称");
      return;
    }
    if (!payload.brand) {
      AppMessage.error("操作失败：请输入品牌");
      return;
    }
    if (!payload.deviceId) {
      AppMessage.error("操作失败：请输入设备ID");
      return;
    }
    var url = "/system/visitor/machine/add";
    if (state.mode === "edit") {
      payload.machineId = state.currentMachineId;
      url = "/system/visitor/machine/edit";
    }

    saveButton.disabled = true;
    apiRequest(url, {
      method: "POST",
      body: JSON.stringify(payload)
    }).then(function () {
      closeMachineModal();
      AppMessage.success("操作成功");
      loadMachines();
    }).catch(function (error) {
      AppMessage.error("操作失败：" + (error.message || "设备保存失败"));
    }).then(function () {
      saveButton.disabled = false;
    });
  }

  function changeEnabled(machineId, enabled) {
    apiRequest("/system/visitor/machine/changeStatus", {
      method: "POST",
      body: JSON.stringify({ machineIds: [machineId], enabled: enabled })
    }).then(function () {
      AppMessage.success("操作成功");
      loadMachines();
    }).catch(function (error) {
      AppMessage.error("操作失败：" + (error.message || "状态更新失败"));
    });
  }

  function logoutMachine(machineId) {
    return apiRequest("/system/visitor/machine/logout", {
      method: "POST",
      body: JSON.stringify({ machineIds: [machineId] })
    }).then(function () {
      AppMessage.success("操作成功");
      loadMachines();
    });
  }

  function deleteMachine(machineId) {
    return apiRequest("/system/visitor/machine/delete", {
      method: "POST",
      body: JSON.stringify({ machineIds: [machineId] })
    }).then(function () {
      AppMessage.success("操作成功");
      loadMachines();
    });
  }

  function confirmMachineAction(machineId, title, message, handler) {
    AppConfirm.open({
      title: title,
      message: message,
      onConfirm: function () {
        return handler(machineId);
      }
    });
  }

  function toggleAreaCascader() {
    var panel = document.getElementById("machineAreaCascaderPanel");
    if (panel.hidden) {
      renderAreaCascaderPanel();
      panel.hidden = false;
      document.getElementById("machineAreaCascaderTrigger").setAttribute("aria-expanded", "true");
      return;
    }
    closeAreaCascader();
  }

  function closeAreaCascader() {
    var panel = document.getElementById("machineAreaCascaderPanel");
    if (!panel) {
      return;
    }
    panel.hidden = true;
    document.getElementById("machineAreaCascaderTrigger").setAttribute("aria-expanded", "false");
  }

  function setCascaderValue(areaId) {
    state.modalAreaId = areaId ? Number(areaId) : null;
    state.cascaderPath = state.modalAreaId ? findAreaPath(state.modalAreaId) : [];
    document.getElementById("machineAreaId").value = state.modalAreaId || "";
    updateCascaderText();
    renderAreaCascaderPanel();
  }

  function renderAreaCascaderPanel() {
    var panel = document.getElementById("machineAreaCascaderPanel");
    var columns = buildCascaderColumns();
    if (!columns.length) {
      panel.innerHTML = '<div class="area-cascader-empty">暂无区域</div>';
      return;
    }
    panel.innerHTML = columns.map(function (column, columnIndex) {
      return '<div class="area-cascader-column">' + column.items.map(function (area) {
        var active = column.selectedId === area.areaId;
        var hasChildren = Array.isArray(area.children) && area.children.length > 0;
        return [
          '<button class="area-cascader-option' + (active ? " active" : "") + '" type="button" role="option" data-level="' + columnIndex + '" data-id="' + area.areaId + '" aria-selected="' + active + '">',
          '<span>' + escapeHtml(area.areaName || "-") + '</span>',
          hasChildren ? '<span class="area-cascader-next">›</span>' : '<span></span>',
          '</button>'
        ].join("");
      }).join("") + '</div>';
    }).join("");

    panel.querySelectorAll(".area-cascader-option").forEach(function (button) {
      button.addEventListener("click", function () {
        var level = Number(button.getAttribute("data-level"));
        var areaId = Number(button.getAttribute("data-id"));
        var area = findArea(areaId);
        if (!area) {
          return;
        }
        state.cascaderPath = state.cascaderPath.slice(0, level);
        state.cascaderPath[level] = area;
        state.modalAreaId = area.areaId;
        document.getElementById("machineAreaId").value = state.modalAreaId || "";
        updateCascaderText();
        renderAreaCascaderPanel();
        if (!area.children || !area.children.length) {
          closeAreaCascader();
        }
      });
    });
  }

  function buildCascaderColumns() {
    if (!state.areaTree.length) {
      return [];
    }
    var columns = [{
      items: state.areaTree,
      selectedId: state.cascaderPath[0] && state.cascaderPath[0].areaId
    }];
    state.cascaderPath.forEach(function (area, index) {
      var children = Array.isArray(area.children) ? area.children : [];
      if (children.length) {
        columns.push({
          items: children,
          selectedId: state.cascaderPath[index + 1] && state.cascaderPath[index + 1].areaId
        });
      }
    });
    return columns;
  }

  function updateCascaderText() {
    var text = state.cascaderPath.length
      ? state.cascaderPath.map(function (area) { return area.areaName; }).join(" / ")
      : "下拉菜单";
    document.getElementById("machineAreaCascaderText").textContent = text;
  }

  function toggleMoreMenu(button) {
    var menu = button.parentNode.querySelector(".more-menu");
    var hidden = menu.hidden;
    closeMoreMenus();
    menu.hidden = !hidden;
  }

  function closeMoreMenus() {
    document.querySelectorAll(".more-menu").forEach(function (menu) {
      menu.hidden = true;
    });
  }

  function flattenAreas(tree) {
    var result = [];
    tree.forEach(function (area) {
      walkArea(area, 1, result);
    });
    return result;
  }

  function walkArea(area, level, result) {
    area.level = level;
    result.push(area);
    (area.children || []).forEach(function (child) {
      child.parentId = area.areaId;
      walkArea(child, level + 1, result);
    });
  }

  function findArea(areaId) {
    for (var index = 0; index < state.flatAreas.length; index++) {
      if (Number(state.flatAreas[index].areaId) === Number(areaId)) {
        return state.flatAreas[index];
      }
    }
    return null;
  }

  function findAreaPath(areaId) {
    var result = [];
    walkPath(state.areaTree, Number(areaId), result);
    return result;
  }

  function walkPath(list, areaId, path) {
    for (var index = 0; index < list.length; index++) {
      var area = list[index];
      path.push(area);
      if (Number(area.areaId) === areaId) {
        return true;
      }
      if (walkPath(area.children || [], areaId, path)) {
        return true;
      }
      path.pop();
    }
    return false;
  }

  function formatOnlineStatus(status) {
    if (status === "ONLINE") {
      return "在线";
    }
    if (status === "OFFLINE") {
      return "离线";
    }
    return "未激活";
  }

  function apiRequest(path, options) {
    options = options || {};
    var headers = options.headers || {};
    var token = getToken();
    if (token) {
      headers.Authorization = "Bearer " + token;
    }
    if (!options.skipJson) {
      headers["Content-Type"] = "application/json";
    }

    return fetch(getApiBaseUrl() + normalizePath(path), {
      method: options.method || "GET",
      headers: headers,
      body: options.body
    }).then(function (response) {
      return response.json().catch(function () {
        return { code: response.ok ? 200 : response.status, msg: response.statusText };
      });
    }).then(function (result) {
      if (result.code === 401) {
        clearLoginState();
        redirectToLogin();
        throw new Error(result.msg || "登录状态已过期");
      }
      if (result.code !== 200) {
        throw new Error(result.msg || "请求失败");
      }
      return result;
    });
  }

  function logout() {
    apiRequest("/logout", {
      method: "POST",
      skipJson: true
    }).catch(function () {
      return null;
    }).then(function () {
      clearLoginState();
      redirectToLogin();
    });
  }

  function applyUserInfo(user) {
    user = user || {};
    var displayName = user.nickName || user.userName || user.username || "用户";
    document.getElementById("userDisplayName").textContent = displayName;
    document.querySelector(".user-avatar").textContent = displayName.substring(0, 1);
  }

  function readLoginUser() {
    try {
      var loginResult = JSON.parse(localStorage.getItem("visitor_admin_login_result") || "{}");
      return (loginResult.userInfo && loginResult.userInfo.user) || loginResult.user || {};
    } catch (error) {
      return {};
    }
  }

  function getApiBaseUrl() {
    return trimRightSlash(localStorage.getItem("visitor_admin_api_base") || config.apiBaseUrl || window.location.origin);
  }

  function getToken() {
    return localStorage.getItem("visitor_admin_token") || "";
  }

  function clearLoginState() {
    localStorage.removeItem("visitor_admin_token");
    localStorage.removeItem("visitor_admin_login_result");
    localStorage.removeItem("visitor_admin_api_base");
  }

  function redirectToLogin() {
    window.location.href = "../index.html";
  }

  function normalizePath(path) {
    return "/" + String(path || "").replace(/^\/+/, "");
  }

  function trimRightSlash(value) {
    return String(value || "").replace(/\/+$/, "");
  }

  function escapeHtml(value) {
    return String(value == null ? "" : value).replace(/[&<>"']/g, function (char) {
      return {
        "&": "&amp;",
        "<": "&lt;",
        ">": "&gt;",
        '"': "&quot;",
        "'": "&#39;"
      }[char];
    });
  }
})();