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

  var state = {
    rows: [],
    roles: [],
    total: 0,
    pageNum: 1,
    pageSize: 10,
    mode: "add",
    currentUserId: null,
    passwordUserId: null
  };

  init();

  function init() {
    if (!getToken()) {
      redirectToLogin();
      return;
    }
    bindLayoutActions();
    bindPageActions();
    applyUserInfo(readLoginUser());
    loadProfileName();
    loadRoles().then(loadAdmins);
  }

  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");
    });

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

  function bindPageActions() {
    document.getElementById("queryForm").addEventListener("submit", function (event) {
      event.preventDefault();
      state.pageNum = 1;
      loadAdmins();
    });
    document.getElementById("resetButton").addEventListener("click", resetQuery);
    document.getElementById("addAdminButton").addEventListener("click", function () {
      openAdminModal("add", {});
    });
    document.getElementById("adminForm").addEventListener("submit", function (event) {
      event.preventDefault();
      saveAdmin();
    });
    document.getElementById("passwordForm").addEventListener("submit", function (event) {
      event.preventDefault();
      savePassword();
    });
    document.querySelectorAll("[data-close='admin']").forEach(function (button) {
      button.addEventListener("click", closeAdminModal);
    });
    document.querySelectorAll("[data-close='password']").forEach(function (button) {
      button.addEventListener("click", closePasswordModal);
    });
  }

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

  function loadRoles() {
    return apiRequest("/system/platform/admin/roleOptions", {
      method: "POST",
      body: JSON.stringify({})
    }).then(function (result) {
      state.roles = Array.isArray(result.data) ? result.data : [];
      renderRoleOptions();
    }).catch(function () {
      state.roles = [];
      renderRoleOptions();
    });
  }

  function loadAdmins() {
    apiRequest("/system/platform/admin/page", {
      method: "POST",
      body: JSON.stringify(buildQueryPayload())
    }).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 || "平台管理员加载失败"));
    });
  }

  function buildQueryPayload() {
    return {
      pageNum: state.pageNum,
      pageSize: state.pageSize,
      nickName: document.getElementById("queryNickName").value.trim(),
      phonenumber: document.getElementById("queryPhone").value.trim(),
      roleId: numberOrNull(document.getElementById("queryRole").value),
      status: document.getElementById("queryStatus").value
    };
  }

  function renderRoleOptions() {
    var queryRole = document.getElementById("queryRole");
    var adminRole = document.getElementById("adminRole");
    var queryOptions = ['<option value="">请选择</option>'];
    var formOptions = ['<option value="">请选择</option>'];
    state.roles.forEach(function (role) {
      var option = '<option value="' + role.roleId + '">' + escapeHtml(role.roleName || "-") + '</option>';
      queryOptions.push(option);
      formOptions.push(option);
    });
    queryRole.innerHTML = queryOptions.join("");
    adminRole.innerHTML = formOptions.join("");
  }

  function renderTable() {
    var body = document.getElementById("adminTableBody");
    var empty = document.getElementById("adminEmpty");
    empty.hidden = state.rows.length > 0;
    body.innerHTML = state.rows.map(function (item, index) {
      var enabled = String(item.status) !== "1";
      var rowNumber = (state.pageNum - 1) * state.pageSize + index + 1;
      return [
        "<tr>",
        "<td>" + rowNumber + "</td>",
        "<td title=\"" + escapeHtml(item.nickName || "") + "\">" + escapeHtml(item.nickName || "-") + "</td>",
        "<td title=\"" + escapeHtml(item.userName || "") + "\">" + escapeHtml(item.userName || "-") + "</td>",
        "<td>" + escapeHtml(item.phonenumber || "-") + "</td>",
        "<td title=\"" + escapeHtml(item.roleName || "") + "\">" + escapeHtml(item.roleName || "-") + "</td>",
        "<td><span class=\"admin-status " + (enabled ? "enabled" : "disabled") + "\">" + (enabled ? "启用" : "禁用") + "</span></td>",
        "<td>" + escapeHtml(formatDateTime(item.createTime)) + "</td>",
        "<td><div class=\"admin-actions\">",
        "<button type=\"button\" data-action=\"edit\" data-id=\"" + item.userId + "\">编辑</button>",
        "<button type=\"button\" data-action=\"status\" data-status=\"" + (enabled ? "1" : "0") + "\" data-id=\"" + item.userId + "\">" + (enabled ? "禁用" : "启用") + "</button>",
        "<button type=\"button\" data-action=\"password\" data-id=\"" + item.userId + "\">重置密码</button>",
        "<button class=\"danger\" type=\"button\" data-action=\"delete\" data-id=\"" + item.userId + "\">删除</button>",
        "</div></td>",
        "</tr>"
      ].join("");
    }).join("");

    body.querySelectorAll("[data-action]").forEach(function (button) {
      button.addEventListener("click", function () {
        var id = Number(button.getAttribute("data-id"));
        var action = button.getAttribute("data-action");
        if (action === "edit") {
          editAdmin(id);
        } else if (action === "status") {
          changeStatus(id, button.getAttribute("data-status"));
        } else if (action === "password") {
          openPasswordModal(id);
        } else if (action === "delete") {
          deleteAdmin(id);
        }
      });
    });
  }

  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"));
        loadAdmins();
      });
    });
    document.getElementById("pageSizeSelect").addEventListener("change", function (event) {
      state.pageSize = Number(event.target.value);
      state.pageNum = 1;
      loadAdmins();
    });
    document.getElementById("jumpPageInput").addEventListener("keydown", function (event) {
      if (event.key === "Enter") {
        state.pageNum = Math.min(totalPage, Math.max(1, Number(event.target.value) || 1));
        loadAdmins();
      }
    });
  }

  function resetQuery() {
    document.getElementById("queryForm").reset();
    state.pageNum = 1;
    loadAdmins();
  }

  function openAdminModal(mode, data) {
    state.mode = mode;
    state.currentUserId = mode === "edit" ? data.userId : null;
    document.getElementById("adminModalTitle").textContent = mode === "edit" ? "编辑管理员" : "新增管理员";
    document.getElementById("adminNickName").value = data.nickName || "";
    document.getElementById("adminUserName").value = data.userName || "";
    document.getElementById("adminPhone").value = data.phonenumber || "";
    document.getElementById("adminRole").value = data.roleId ? String(data.roleId) : "";
    document.getElementById("adminStatus").value = data.status == null ? "0" : String(data.status);
    document.getElementById("adminPassword").value = "";
    document.getElementById("adminPasswordRow").hidden = mode === "edit";
    document.getElementById("adminModal").hidden = false;
  }

  function closeAdminModal() {
    document.getElementById("adminModal").hidden = true;
  }

  function editAdmin(userId) {
    apiRequest("/system/platform/admin/detail", {
      method: "POST",
      body: JSON.stringify({ userId: userId })
    }).then(function (result) {
      openAdminModal("edit", result.data || {});
    }).catch(function (error) {
      AppMessage.error("操作失败：" + (error.message || "平台管理员详情加载失败"));
    });
  }

  function saveAdmin() {
    var payload = {
      nickName: document.getElementById("adminNickName").value.trim(),
      userName: document.getElementById("adminUserName").value.trim(),
      phonenumber: document.getElementById("adminPhone").value.trim(),
      roleId: numberOrNull(document.getElementById("adminRole").value),
      status: document.getElementById("adminStatus").value
    };
    if (!payload.nickName || !payload.userName || !payload.roleId) {
      AppMessage.error("操作失败：请完善必填项");
      return;
    }
    if (!/^1\d{10}$/.test(payload.phonenumber)) {
      AppMessage.error("操作失败：请输入11位手机号");
      return;
    }
    var path = "/system/platform/admin/add";
    if (state.mode === "add") {
      payload.password = document.getElementById("adminPassword").value.trim();
      if (!isStrongPassword(payload.password)) {
        AppMessage.error("操作失败：密码至少12位，且包含大小写字母和特殊字符");
        return;
      }
    } else {
      payload.userId = state.currentUserId;
      path = "/system/platform/admin/edit";
    }

    var saveButton = document.getElementById("saveAdminButton");
    saveButton.disabled = true;
    apiRequest(path, {
      method: "POST",
      body: JSON.stringify(payload)
    }).then(function () {
      closeAdminModal();
      AppMessage.success("操作成功");
      loadAdmins();
    }).catch(function (error) {
      AppMessage.error("操作失败：" + (error.message || "平台管理员保存失败"));
    }).then(function () {
      saveButton.disabled = false;
    });
  }

  function changeStatus(userId, status) {
    var disabled = status === "1";
    var run = function () {
      return apiRequest("/system/platform/admin/changeStatus", {
        method: "POST",
        body: JSON.stringify({ userId: userId, status: status })
      }).then(function () {
        AppMessage.success("操作成功");
        loadAdmins();
      });
    };
    if (!disabled) {
      run().catch(function (error) {
        AppMessage.error("操作失败：" + (error.message || "状态更新失败"));
      });
      return;
    }
    AppConfirm.open({
      title: "是否确认禁用账号？",
      message: "禁用后该账号将无法登录后台。",
      onConfirm: run
    });
  }

  function openPasswordModal(userId) {
    state.passwordUserId = userId;
    document.getElementById("newPassword").value = "";
    document.getElementById("confirmPassword").value = "";
    document.getElementById("passwordModal").hidden = false;
  }

  function closePasswordModal() {
    document.getElementById("passwordModal").hidden = true;
  }

  function savePassword() {
    var password = document.getElementById("newPassword").value.trim();
    var confirmPassword = document.getElementById("confirmPassword").value.trim();
    if (password !== confirmPassword) {
      AppMessage.error("操作失败：两次输入的密码不一致");
      return;
    }
    if (!isStrongPassword(password)) {
      AppMessage.error("操作失败：密码至少12位，且包含大小写字母和特殊字符");
      return;
    }
    var button = document.getElementById("savePasswordButton");
    button.disabled = true;
    apiRequest("/system/platform/admin/resetPassword", {
      method: "POST",
      body: JSON.stringify({ userId: state.passwordUserId, password: password })
    }).then(function () {
      closePasswordModal();
      AppMessage.success("操作成功");
    }).catch(function (error) {
      AppMessage.error("操作失败：" + (error.message || "重置密码失败"));
    }).then(function () {
      button.disabled = false;
    });
  }

  function deleteAdmin(userId) {
    AppConfirm.open({
      title: "是否确认删除数据？",
      message: "删除后该账号将无法登录后台。",
      onConfirm: function () {
        return apiRequest("/system/platform/admin/delete", {
          method: "POST",
          body: JSON.stringify({ userIds: [userId] })
        }).then(function () {
          AppMessage.success("操作成功");
          loadAdmins();
        });
      }
    });
  }

  function isStrongPassword(value) {
    return value.length >= 12 && /[A-Z]/.test(value) && /[a-z]/.test(value) && /[^A-Za-z0-9]/.test(value);
  }

  function numberOrNull(value) {
    if (value === "" || value == null) {
      return null;
    }
    var number = Number(value);
    return Number.isNaN(number) ? null : number;
  }

  function formatDateTime(value) {
    return value ? String(value).slice(0, 19).replace("T", " ") : "-";
  }

  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];
    });
  }
})();