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

  var state = {
    rows: [],
    total: 0,
    pageNum: 1,
    pageSize: 10
  };

  init();

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

  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;
      loadRoles();
    });
    document.getElementById("resetButton").addEventListener("click", function () {
      document.getElementById("queryForm").reset();
      state.pageNum = 1;
      loadRoles();
    });
    document.getElementById("addRoleButton").addEventListener("click", function () {
      window.location.href = "./role-form.html?mode=add";
    });
  }

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

  function loadRoles() {
    apiRequest("/system/role/manage/page", {
      method: "POST",
      body: JSON.stringify({
        pageNum: state.pageNum,
        pageSize: state.pageSize,
        roleName: document.getElementById("queryRoleName").value.trim()
      })
    }).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 || "角色加载失败"));
    });
  }

  function renderTable() {
    var body = document.getElementById("roleTableBody");
    var empty = document.getElementById("roleEmpty");
    empty.hidden = state.rows.length > 0;
    body.innerHTML = state.rows.map(function (item, index) {
      var rowNumber = (state.pageNum - 1) * state.pageSize + index + 1;
      var userCount = Number(item.userCount || 0);
      var deleteDisabled = Number(item.roleId) === 1;
      return [
        "<tr>",
        "<td>" + rowNumber + "</td>",
        "<td title=\"" + escapeHtml(item.roleName || "") + "\">" + escapeHtml(item.roleName || "-") + "</td>",
        "<td>" + userCount + "</td>",
        "<td>" + escapeHtml(formatDateTime(item.createTime)) + "</td>",
        "<td title=\"" + escapeHtml(item.remark || "") + "\">" + escapeHtml(item.remark || "-") + "</td>",
        "<td><div class=\"role-actions\">",
        "<button type=\"button\" data-action=\"detail\" data-id=\"" + item.roleId + "\">详情</button>",
        "<button type=\"button\" data-action=\"edit\" data-id=\"" + item.roleId + "\">编辑</button>",
        "<button type=\"button\" data-action=\"delete\" data-count=\"" + userCount + "\" data-id=\"" + item.roleId + "\"" + (deleteDisabled ? " disabled" : "") + ">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 === "detail") {
          window.location.href = "./role-form.html?mode=detail&roleId=" + id;
        } else if (action === "edit") {
          window.location.href = "./role-form.html?mode=edit&roleId=" + id;
        } else if (action === "delete") {
          deleteRole(id);
        }
      });
    });
  }

  function deleteRole(roleId) {
    AppConfirm.open({
      title: "是否确认删除数据？",
      message: "仅未绑定账号情况下可删除权限组。",
      onConfirm: function () {
        return apiRequest("/system/role/manage/delete", {
          method: "POST",
          body: JSON.stringify({ roleIds: [roleId] })
        }).then(function () {
          AppMessage.success("操作成功");
          loadRoles();
        });
      }
    });
  }

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

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

  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];
    });
  }
})();