(function () {
  const API_BASE = "https://jvapi.haiyihy.com";
  const BACK_ICON =
    "data:image/png;base64,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";
  const DEFAULT_AVATAR = "../assets/defaultAvatar-CdxWBK1k.png";
  const ENDPOINTS = {
    invitedList: "/team/bd/invite-bdleader-message-own",
    invite: "/team/bd/invite-bdleader",
    cancelPrefix: "/team/bd/invite-bdleader-cancel/",
  };

  const TEXT = {
    pageTitle: "Invite User To Become BD Leader",
    language: "English",
    placeholder: "Enter User ID",
    search: "Search",
    invite: "Invite",
    idlePrompt: "please input user id",
    noUsersFound: "No users found",
    information: "Information:",
    userIdPrefix: "User ID:",
    pending: "Pending",
    success: "Success",
    cancel: "Cancel",
    invitationSubmitted: "Invitation submitted",
    applicationCancelled: "Application cancelled",
    somethingWentWrong: "Something went wrong",
    cancellationFailed: "Cancellation failed, try again",
    informationTitle: "Information",
    successTitle: "Success",
    errorTitle: "Error",
    ok: "OK",
  };

  const state = {
    query: "",
    invitedList: [],
    searchResults: [],
    showSearchResults: false,
    searching: false,
    hasSearched: false,
  };

  const dom = {
    statusBarPlaceholder: document.getElementById("statusBarPlaceholder"),
    backButton: document.getElementById("backButton"),
    backButtonIcon: document.getElementById("backButtonIcon"),
    pageTitle: document.getElementById("pageTitle"),
    languageEntry: document.getElementById("languageEntry"),
    languageName: document.getElementById("languageName"),
    searchInput: document.getElementById("searchInput"),
    clearButton: document.getElementById("clearButton"),
    searchButton: document.getElementById("searchButton"),
    resultList: document.getElementById("resultList"),
    noData: document.getElementById("noData"),
    userCardTemplate: document.getElementById("userCardTemplate"),
  };

  init();

  function init() {
    document.title = TEXT.pageTitle;
    document.documentElement.lang = "en";
    document.documentElement.dir = resolveDocumentDirection();

    dom.backButtonIcon.src = BACK_ICON;
    dom.pageTitle.textContent = TEXT.pageTitle;
    dom.languageName.textContent = TEXT.language;
    dom.searchInput.placeholder = TEXT.placeholder;
    dom.searchButton.textContent = TEXT.search;
    dom.noData.textContent = TEXT.idlePrompt;

    syncStatusBarPlaceholder();
    bindEvents();
    render();
    loadInvitedList();
  }

  function bindEvents() {
    dom.backButton.addEventListener("click", handleBack);
    dom.languageEntry.addEventListener("click", handleLanguageClick);
    dom.searchInput.addEventListener("input", handleSearchInput);
    dom.clearButton.addEventListener("click", clearSearch);
    dom.searchButton.addEventListener("click", triggerSearchNow);
  }

  function resolveDocumentDirection() {
    const lang = (new URLSearchParams(window.location.search).get("lang") || "").toLowerCase();
    return lang.startsWith("ar") ? "rtl" : "ltr";
  }

  function syncStatusBarPlaceholder() {
    const hasAppBridge =
      Boolean(window.app) ||
      Boolean(window.FlutterPageControl) ||
      Boolean(window.webkit && window.webkit.messageHandlers);
    const isIOS = /iphone|ipad|ipod/i.test(window.navigator.userAgent || "");
    dom.statusBarPlaceholder.classList.toggle("is-visible", hasAppBridge && isIOS);
  }

  function handleBack() {
    if (window.history.length > 1) {
      window.history.back();
      return;
    }

    window.location.href = "/";
  }

  function handleLanguageClick() {
    window.location.href = "/language";
  }

  function handleSearchInput(event) {
    state.query = event.target.value;
    dom.clearButton.hidden = !state.query;
    state.showSearchResults = false;
    state.hasSearched = false;
    render();
  }

  function clearSearch() {
    state.query = "";
    state.searchResults = [];
    state.showSearchResults = false;
    state.hasSearched = false;
    dom.searchInput.value = "";
    dom.clearButton.hidden = true;
    render();
  }

  async function triggerSearchNow() {
    if (state.searching) {
      return;
    }

    const query = state.query.trim();

    if (!query) {
      state.showSearchResults = false;
      state.hasSearched = false;
      render();
      return;
    }

    state.searching = true;
    state.showSearchResults = true;
    state.hasSearched = true;
    state.searchResults = [];
    render();

    try {
      const payload = await searchUser(query);
      state.searchResults = payload ? [mergeWithInvitationStatus(payload.userProfile)] : [];
    } catch (error) {
      state.searchResults = [];
      showToast(extractErrorMessage(error), {
        title: TEXT.errorTitle,
        type: "error",
      });
    } finally {
      state.searching = false;
      render();
    }
  }

  async function loadInvitedList() {
    try {
      const response = await request("GET", ENDPOINTS.invitedList);
      state.invitedList = response && response.status && Array.isArray(response.body) ? response.body : [];
      state.searchResults = state.searchResults.map(function (item) {
        return mergeWithInvitationStatus(item.userProfile || {});
      });
      render();
    } catch (error) {
      state.invitedList = [];
      render();
    }
  }

  async function searchUser(query) {
    try {
      const response = await request(
        "GET",
        "/user/user-profile/open-search?account=" + encodeURIComponent(query)
      );

      if (response && response.status && response.body) {
        return { userProfile: response.body };
      }
    } catch (error) {
      if (!/^\d+$/.test(query)) {
        throw error;
      }
    }

    if (!/^\d+$/.test(query)) {
      return null;
    }

    const fallbackResponse = await request(
      "GET",
      "/user/user-profile?userId=" + encodeURIComponent(query)
    );

    if (fallbackResponse && fallbackResponse.status && fallbackResponse.body) {
      return { userProfile: fallbackResponse.body };
    }

    return null;
  }

  function mergeWithInvitationStatus(userProfile) {
    const matchedInvitation = state.invitedList.find(function (item) {
      return (
        item &&
        item.userProfile &&
        userProfile &&
        item.userProfile.id === userProfile.id
      );
    });

    return Object.assign({}, matchedInvitation || {}, {
      userProfile: userProfile || {},
    });
  }

  async function inviteUser(item) {
    if (!item || !item.userProfile || !item.userProfile.id) {
      return;
    }

    try {
      const response = await request("POST", ENDPOINTS.invite, {
        body: {
          inviteUserId: item.userProfile.id,
        },
      });

      if (response && response.status) {
        showToast(TEXT.invitationSubmitted, {
          title: TEXT.successTitle,
          type: "success",
        });
        await loadInvitedList();
      }
    } catch (error) {
      showToast(extractErrorMessage(error, TEXT.somethingWentWrong), {
        title: TEXT.errorTitle,
        type: "error",
      });
    }
  }

  async function cancelInvitation(invitationId) {
    try {
      const response = await request("POST", ENDPOINTS.cancelPrefix + invitationId);

      if (response && response.status) {
        showToast(TEXT.applicationCancelled, {
          title: TEXT.informationTitle,
          type: "info",
        });
        await loadInvitedList();
      }
    } catch (error) {
      showToast(extractErrorMessage(error, TEXT.cancellationFailed), {
        title: TEXT.errorTitle,
        type: "error",
      });
    }
  }

  function render() {
    renderSearchButton();
    renderList();
  }

  function renderSearchButton() {
    dom.searchButton.disabled = !state.query.trim() || state.searching;
  }

  function renderList() {
    const currentList = state.showSearchResults ? state.searchResults : state.invitedList;
    dom.resultList.innerHTML = "";

    currentList.forEach(function (item) {
      dom.resultList.appendChild(createUserCard(item, state.showSearchResults ? "search" : "invited"));
    });

    if (currentList.length > 0 || (state.searching && state.showSearchResults)) {
      dom.noData.hidden = true;
      return;
    }

    dom.noData.hidden = false;
    dom.noData.textContent =
      state.showSearchResults && state.hasSearched ? TEXT.noUsersFound : TEXT.idlePrompt;
  }

  function createUserCard(item, mode) {
    const fragment = dom.userCardTemplate.content.cloneNode(true);
    const statusBadge = fragment.querySelector(".status-badge");
    const avatarImage = fragment.querySelector(".avatar-image");
    const nickname = fragment.querySelector(".nickname");
    const account = fragment.querySelector(".account");
    const pendingActions = fragment.querySelector(".pending-actions");
    const userProfile = item.userProfile || {};

    avatarImage.src = userProfile.userAvatar || DEFAULT_AVATAR;
    avatarImage.alt = userProfile.userNickname || "";
    avatarImage.onerror = handleAvatarError;
    nickname.textContent = userProfile.userNickname || "";
    account.textContent = TEXT.userIdPrefix + " " + (userProfile.account || userProfile.id || "");

    if (item.status === 0) {
      statusBadge.innerHTML =
        '<div style="background: #eef7fb; border: 1px solid #c0e1f1; padding: 4px 8px; border-radius: 0 12px; color: #28627c; font-weight: 700">' +
        TEXT.pending +
        "</div>";
    } else if (item.status === 1) {
      statusBadge.innerHTML =
        '<div style="background: #dff5e7; border: 1px solid #b7e0c6; padding: 4px 8px; border-radius: 0 12px; color: #1f6f46; font-weight: 700">' +
        TEXT.success +
        "</div>";
    }

    if (mode === "search") {
      const inviteButton = document.createElement("button");
      inviteButton.type = "button";
      inviteButton.className = "result-action-btn";
      inviteButton.textContent = TEXT.invite;
      inviteButton.disabled = item.status === 0 || item.status === 1;
      inviteButton.addEventListener("click", function (event) {
        event.stopPropagation();
        inviteUser(item);
      });
      pendingActions.appendChild(inviteButton);
    } else if (item.status === 0) {
      const cancelButton = document.createElement("div");
      cancelButton.textContent = TEXT.cancel;
      cancelButton.style.padding = "4px 8px";
      cancelButton.style.borderRadius = "32px";
      cancelButton.style.backgroundColor = "red";
      cancelButton.style.color = "white";
      cancelButton.style.fontWeight = "600";
      cancelButton.style.zIndex = "5";
      cancelButton.addEventListener("click", function (event) {
        event.stopPropagation();
        cancelInvitation(item.id);
      });
      pendingActions.appendChild(cancelButton);
    }

    return fragment;
  }

  function handleAvatarError(event) {
    event.target.onerror = null;
    event.target.src = DEFAULT_AVATAR;
  }

  function extractErrorMessage(error, fallback) {
    return (
      (error &&
        error.response &&
        (error.response.errorMsg || error.response.message || error.response.error)) ||
      (error && error.message) ||
      fallback ||
      TEXT.somethingWentWrong
    );
  }

  function showToast(message, options) {
    const config = Object.assign(
      {
        title: TEXT.informationTitle,
        type: "info",
        confirmText: TEXT.ok,
      },
      options || {}
    );

    const iconMap = {
      error: "✕",
      warning: "⚠",
      success: "✓",
      info: "i",
      simple: "",
    };

    const overlay = document.createElement("div");
    overlay.className = "modal-overlay";
    overlay.innerHTML =
      '<div class="modal modal-enter modal-' +
      config.type +
      '">' +
      (config.type === "simple"
        ? ""
        : '<div class="modal-icon"><div class="icon-circle icon-circle-' +
          config.type +
          '"><span class="icon-symbol icon-symbol-' +
          config.type +
          '">' +
          iconMap[config.type] +
          "</span></div></div>") +
      (config.type === "simple" || !config.title
        ? ""
        : '<div class="modal-title">' + escapeHtml(config.title) + "</div>") +
      '<div class="modal-message">' +
      escapeHtml(message) +
      "</div>" +
      '<div class="modal-actions"><button class="modal-btn modal-btn-' +
      config.type +
      '">' +
      escapeHtml(config.confirmText) +
      "</button></div>" +
      "</div>";

    const modal = overlay.querySelector(".modal");
    const closeButton = overlay.querySelector(".modal-btn");
    const close = function () {
      modal.classList.remove("modal-enter");
      modal.classList.add("modal-leave");
      window.setTimeout(function () {
        overlay.remove();
      }, 200);
    };

    closeButton.addEventListener("click", close);
    overlay.addEventListener("click", function (event) {
      if (event.target === overlay) {
        close();
      }
    });

    document.body.appendChild(overlay);
  }

  function escapeHtml(value) {
    return String(value)
      .replace(/&/g, "&amp;")
      .replace(/</g, "&lt;")
      .replace(/>/g, "&gt;")
      .replace(/"/g, "&quot;")
      .replace(/'/g, "&#39;");
  }

  async function request(method, path, options) {
    const config = options || {};
    const headers = buildRequestHeaders(Boolean(config.body), config.headers || {});
    const response = await fetch(API_BASE + path, {
      method: method,
      credentials: "include",
      headers: headers,
      body: config.body ? JSON.stringify(config.body) : undefined,
    });
    const text = await response.text();
    let payload = {};

    if (text) {
      try {
        payload = JSON.parse(text);
      } catch (error) {
        payload = {
          status: response.ok,
          body: text,
        };
      }
    }

    if (!response.ok || payload.status === false) {
      const requestError = new Error(
        payload.errorMsg || payload.message || response.statusText || TEXT.somethingWentWrong
      );
      requestError.response = payload;
      throw requestError;
    }

    return payload;
  }

  function buildRequestHeaders(hasBody, overrideHeaders) {
    const discovered = discoverAppHeaders();
    const headers = Object.assign({}, overrideHeaders || {});

    if (hasBody) {
      headers["Content-Type"] = headers["Content-Type"] || "application/json";
    }

    headers.Accept = headers.Accept || "application/json, text/plain, */*";

    if (discovered.authorization) {
      headers.Authorization = headers.Authorization || discovered.authorization;
    }

    if (discovered.reqLang) {
      headers["Req-Lang"] = headers["Req-Lang"] || discovered.reqLang;
    }

    if (discovered.appVersion) {
      headers["App-Version"] = headers["App-Version"] || discovered.appVersion;
    }

    if (discovered.buildVersion) {
      headers["Build-Version"] = headers["Build-Version"] || discovered.buildVersion;
    }

    if (discovered.appChannel) {
      headers["App-Channel"] = headers["App-Channel"] || discovered.appChannel;
    }

    if (discovered.reqImei) {
      headers["Req-Imei"] = headers["Req-Imei"] || discovered.reqImei;
    }

    if (discovered.sysOrigin) {
      headers["Sys-Origin"] = headers["Sys-Origin"] || discovered.sysOrigin;
    }

    if (discovered.sysOriginChild) {
      headers["Sys-Origin-Child"] =
        headers["Sys-Origin-Child"] || discovered.sysOriginChild;
    }

    return headers;
  }

  function discoverAppHeaders() {
    const query = new URLSearchParams(window.location.search);
    const collected = [];

    collectCandidate(collected, window.__APP_HEADERS__);
    collectCandidate(collected, window.__HEADER_INFO__);
    collectCandidate(collected, window.headerInfo);
    collectCandidate(collected, parseHeaderObjectFromQuery(query));

    collectFromStorage(collected, window.localStorage);
    collectFromStorage(collected, window.sessionStorage);

    return collected.reduce(function (result, candidate) {
      return Object.assign(result, candidate);
    }, {
      reqLang: query.get("lang") || document.documentElement.lang || "en",
    });
  }

  function parseHeaderObjectFromQuery(query) {
    const candidate = {};
    mapHeaderValue(candidate, "authorization", query.get("authorization"));
    mapHeaderValue(candidate, "authorization", query.get("token"));
    mapHeaderValue(candidate, "reqLang", query.get("lang"));
    mapHeaderValue(candidate, "appVersion", query.get("appVersion"));
    mapHeaderValue(candidate, "buildVersion", query.get("buildVersion"));
    mapHeaderValue(candidate, "appChannel", query.get("appChannel"));
    mapHeaderValue(candidate, "reqImei", query.get("reqImei"));
    mapHeaderValue(candidate, "sysOrigin", query.get("sysOrigin"));
    mapHeaderValue(candidate, "sysOriginChild", query.get("sysOriginChild"));
    return candidate;
  }

  function collectFromStorage(collected, storage) {
    if (!storage) {
      return;
    }

    const preferredKeys = [
      "authorization",
      "Authorization",
      "token",
      "accessToken",
      "headerInfo",
      "headersFromApp",
      "appHeaders",
      "persist:root",
      "user",
      "userInfo",
    ];

    preferredKeys.forEach(function (key) {
      try {
        collectCandidate(collected, storage.getItem(key));
      } catch (error) {
        return;
      }
    });

    for (let index = 0; index < storage.length; index += 1) {
      try {
        const key = storage.key(index);
        collectCandidate(collected, storage.getItem(key));
      } catch (error) {
        return;
      }
    }
  }

  function collectCandidate(collected, value) {
    const normalized = normalizeHeaderCandidate(value, 0);
    if (normalized && Object.keys(normalized).length > 0) {
      collected.push(normalized);
    }
  }

  function normalizeHeaderCandidate(value, depth) {
    if (depth > 4 || value == null) {
      return null;
    }

    if (typeof value === "string") {
      const trimmed = value.trim();

      if (!trimmed) {
        return null;
      }

      if (trimmed[0] === "{" || trimmed[0] === "[") {
        try {
          return normalizeHeaderCandidate(JSON.parse(trimmed), depth + 1);
        } catch (error) {
          return null;
        }
      }

      if (/bearer\\s+/i.test(trimmed)) {
        return {
          authorization: trimmed,
        };
      }

      return null;
    }

    if (Array.isArray(value)) {
      return value.reduce(function (result, entry) {
        const normalized = normalizeHeaderCandidate(entry, depth + 1);
        return normalized ? Object.assign(result, normalized) : result;
      }, {});
    }

    if (typeof value !== "object") {
      return null;
    }

    const normalized = {};
    const aliasMap = {
      authorization: ["authorization", "Authorization", "token", "accessToken"],
      reqLang: ["reqLang", "Req-Lang", "lang", "language"],
      appVersion: ["appVersion", "App-Version"],
      buildVersion: ["buildVersion", "Build-Version"],
      appChannel: ["appChannel", "App-Channel"],
      reqImei: ["reqImei", "Req-Imei"],
      sysOrigin: ["sysOrigin", "Sys-Origin"],
      sysOriginChild: ["sysOriginChild", "Sys-Origin-Child"],
    };

    Object.keys(aliasMap).forEach(function (targetKey) {
      aliasMap[targetKey].forEach(function (sourceKey) {
        mapHeaderValue(normalized, targetKey, value[sourceKey]);
      });
    });

    ["headerInfo", "headers", "auth", "data", "state"].forEach(function (nestedKey) {
      const nestedValue = normalizeHeaderCandidate(value[nestedKey], depth + 1);
      if (nestedValue) {
        Object.assign(normalized, nestedValue);
      }
    });

    Object.keys(value).forEach(function (key) {
      if (
        key === "headerInfo" ||
        key === "headers" ||
        key === "auth" ||
        key === "data" ||
        key === "state"
      ) {
        return;
      }

      if (typeof value[key] === "object") {
        const nestedValue = normalizeHeaderCandidate(value[key], depth + 1);
        if (nestedValue) {
          Object.assign(normalized, nestedValue);
        }
      }
    });

    return normalized;
  }

  function mapHeaderValue(target, key, value) {
    if (value == null || value === "" || target[key]) {
      return;
    }

    target[key] = String(value);
  }
})();