/* EG-BIM-specific Q&A page behavior. */
(function () {
  'use strict';

  const config = window.QA_CONFIG || { product: 'egbim', apiBaseUrl: '', ssoUrl: 'https://test.baroncs.co.kr/' };
  const STORAGE_KEY = 'baron.qa.posts.egbim';
  const COMMENTS_KEY = 'baron.qa.comments.egbim';
  const CATEGORY_CODES = { '오류문의': 'ERROR_QNA', '개선문의': 'IMPROVEMENT_QNA', '일반문의': 'GENERAL_QNA' };
  let authReady;

  const seedPosts = [
    { id: 'EG-1048', category: '오류문의', company: '바론컨설턴트', department: '기술연구팀', author: '홍길동', title: '도면 내보내기 중 프로그램이 종료됩니다.', date: '2026-09-17', status: '문의접수', secret: false, content: '도면 내보내기 버튼을 누르면 프로그램이 종료되는 현상이 있습니다.\n재현 절차와 사용 중인 버전을 함께 확인 부탁드립니다.' },
    { id: 'EG-1047', category: '개선문의', company: '한맥기술', department: 'BIM팀', author: '김민지', title: '층별 도면을 한 번에 선택할 수 있으면 좋겠습니다.', date: '2026-09-16', status: '문의검토', secret: false, content: '층별 도면을 일괄 선택하여 내보낼 수 있는 기능을 제안드립니다.' },
    { id: 'EG-1046', category: '일반문의', company: '삼안', department: '설계1팀', author: '이도윤', title: 'EG-BIM 라이선스와 설치 환경을 문의드립니다.', date: '2026-09-15', status: '답변완료', secret: true, content: '설치 가능한 운영체제와 라이선스 정책을 확인하고 싶습니다.' },
    { id: 'EG-1045', category: '오류문의', company: '바론컨설턴트', department: '디지털전환팀', author: '박서준', title: '프로젝트 파일을 열 때 로딩이 오래 걸립니다.', date: '2026-09-12', status: '정밀검토', secret: false, content: '최근 프로젝트 파일을 열 때 약 2분 이상 로딩이 지속됩니다.' },
    { id: 'EG-1044', category: '공지사항', company: '관리자', department: '-', author: '관리자', title: 'EG-BIM Q&A 게시판 운영 안내', date: '2026-09-10', status: '', secret: false, content: 'EG-BIM 사용 중 궁금한 점이나 개선 의견을 남겨주세요.' },
    { id: 'EG-1043', category: '개선문의', company: '한맥기술', department: '사업관리팀', author: '최유진', title: '검색 결과에서 도면 미리보기를 제공해주세요.', date: '2026-09-09', status: '문의접수', secret: false, content: '검색 결과에 도면 미리보기 썸네일이 있으면 확인이 더 편리할 것 같습니다.' },
    { id: 'EG-1042', category: '일반문의', company: '외부 사용자', department: '-', author: '정하늘', title: '교육 자료를 어디서 확인할 수 있나요?', date: '2026-09-08', status: '답변완료', secret: false, content: 'EG-BIM 기본 교육 자료와 사용 가이드 위치를 알려주세요.' }
  ];

  function qs(selector, root) { return (root || document).querySelector(selector); }
  function qsa(selector, root) { return Array.prototype.slice.call((root || document).querySelectorAll(selector)); }
  function escapeHtml(value) {
    return String(value == null ? '' : value).replace(/[&<>'"]/g, function (char) {
      return { '&': '&amp;', '<': '&lt;', '>': '&gt;', "'": '&#039;', '"': '&quot;' }[char];
    });
  }

  function readJson(key, fallback) {
    try { return JSON.parse(localStorage.getItem(key) || 'null') || fallback; } catch (error) { return fallback; }
  }

  function getPosts() {
    const saved = readJson(STORAGE_KEY, []);
    return saved.concat(seedPosts.filter(function (seed) {
      return !saved.some(function (post) { return post.id === seed.id; });
    }));
  }

  function savePost(post) {
    const posts = readJson(STORAGE_KEY, []);
    posts.unshift(post);
    localStorage.setItem(STORAGE_KEY, JSON.stringify(posts));
  }

  function getComments() { return readJson(COMMENTS_KEY, {}); }

  function parseJson(value, fallback) {
    if (!value) return fallback;
    try { return typeof value === 'string' ? JSON.parse(value) : value; } catch (error) { return fallback; }
  }

  function decodeCookieJson(value) {
    if (!value) return null;
    try {
      const binary = window.atob(value);
      const bytes = Array.prototype.map.call(binary, function (char) { return '%' + ('00' + char.charCodeAt(0).toString(16)).slice(-2); }).join('');
      return JSON.parse(decodeURIComponent(bytes));
    } catch (error) {
      try { return JSON.parse(window.atob(value)); } catch (fallbackError) { return null; }
    }
  }

  function readCookie(name) {
    const item = document.cookie.split('; ').find(function (part) { return part.indexOf(name + '=') === 0; });
    return item ? item.slice(name.length + 1) : '';
  }

  function decodeJwtPayload(token) {
    if (!token || token.split('.').length < 2) return {};
    try {
      const encoded = token.split('.')[1].replace(/-/g, '+').replace(/_/g, '/');
      return JSON.parse(decodeURIComponent(escape(window.atob(encoded + '='.repeat((4 - encoded.length % 4) % 4)))));
    } catch (error) { return {}; }
  }

  function collectSsoClaims() {
    const storedClaims = parseJson(
      sessionStorage.getItem('ssoClaims') || sessionStorage.getItem('baronClaims') || sessionStorage.getItem('claims'),
      decodeCookieJson(readCookie('baron_claims')) || {}
    );
    return Object.assign({}, decodeJwtPayload(sessionStorage.getItem('sessionJwt') || ''), storedClaims);
  }

  function normalizeAuthUser(raw, claims) {
    raw = raw || {};
    claims = claims || {};
    const custom = raw.customAttributes || raw.custom_attributes || {};
    const claimProfile = claims.profile || {};
    const tenants = raw.tenants || raw.tenantIds || custom.tenants || claims.tenants || claims.tenantIds || [];
    const tenantList = Array.isArray(tenants) ? tenants : Object.keys(tenants).map(function (key) {
      return typeof tenants[key] === 'object' ? Object.assign({ id: key }, tenants[key]) : { id: key, name: tenants[key] };
    });
    const tenantId = raw.tenantId || raw.tenant_id || custom.tenantId || custom.tenant_id || claims.tenantId || claims.tenant_id || (tenantList[0] && (tenantList[0].id || tenantList[0].tenantId)) || '';
    const tenantIds = tenantList.map(function (tenant) { return typeof tenant === 'string' ? tenant : (tenant.id || tenant.tenantId || tenant.key || ''); }).filter(Boolean);
    if (tenantId && tenantIds.indexOf(tenantId) === -1) tenantIds.unshift(tenantId);
    const ssoSubject = raw.ssoSubject || raw.oauthSubject || raw.subject || claims.sub || claims.subject || raw.userId || sessionStorage.getItem('descopeUserId') || '';
    const userUuid = raw.userUuid || raw.userId || claims.userId || claims.user_id || sessionStorage.getItem('descopeUserId') || '';
    const loginId = raw.loginId || (raw.loginIds || [])[0] || raw.email || claims.email || claimProfile.email || sessionStorage.getItem('loginId') || readCookie('descope_login_id') || '';
    return {
      userUuid: userUuid,
      ssoSubject: ssoSubject,
      requesterId: ssoSubject,
      tenantId: tenantId,
      requesterTenantId: tenantId,
      tenantIds: tenantIds,
      scope: raw.scope || claims.scope || sessionStorage.getItem('ssoScope') || '',
      roles: raw.roles || raw.roleNames || claims.roles || claims.roleNames || [],
      loginId: loginId,
      email: raw.email || claims.email || claimProfile.email || sessionStorage.getItem('loginId') || '',
      name: raw.name || claims.name || claimProfile.name || sessionStorage.getItem('userName') || readCookie('descope_user_name') || '',
      phone: raw.phone || raw.phoneNumber || claims.phone || claims.phone_number || sessionStorage.getItem('phone') || '',
      company: custom.company || raw.company || claims.company || sessionStorage.getItem('company') || '',
      familyCompany: custom.familyCompany || custom.family_company || raw.familyCompany || sessionStorage.getItem('familyCompany') || '',
      department: custom.team || custom.department || raw.department || claims.department || sessionStorage.getItem('team') || '',
      rawClaims: claims
    };
  }

  function getAuthUser() {
    const sessionUser = normalizeAuthUser({
      loginId: sessionStorage.getItem('loginId') || '',
      userId: sessionStorage.getItem('descopeUserId') || '',
      name: sessionStorage.getItem('userName') || '',
      company: sessionStorage.getItem('company') || '',
      familyCompany: sessionStorage.getItem('familyCompany') || '',
      department: sessionStorage.getItem('team') || '',
      tenantId: sessionStorage.getItem('tenantId') || sessionStorage.getItem('tenant_id') || '',
      tenantIds: parseJson(sessionStorage.getItem('tenantIds'), [])
    }, collectSsoClaims());
    if (sessionUser.loginId || sessionUser.ssoSubject) return sessionUser;
    const baronUser = decodeCookieJson(readCookie('baron_user'));
    const descopeUser = baronUser || {
      loginId: readCookie('descope_login_id'), userId: readCookie('descope_user_id'), name: readCookie('descope_user_name'),
      email: readCookie('descope_user_email'), phone: readCookie('descope_user_phone'),
      customAttributes: decodeCookieJson(readCookie('descope_custom_attributes')) || {}
    };
    return descopeUser && (descopeUser.loginId || descopeUser.userId || descopeUser.email) ? normalizeAuthUser(descopeUser, collectSsoClaims()) : null;
  }

  async function loadAuthUser() {
    const localUser = getAuthUser();
    if (localUser && localUser.tenantId) return localUser;
    if (!config.ssoSessionEndpoint) return localUser;
    try {
      const response = await fetch(config.ssoSessionEndpoint, { credentials: 'include', headers: { Accept: 'application/json' } });
      if (!response.ok) throw new Error('SSO 세션 확인에 실패했습니다.');
      const body = await response.json();
      const remoteUser = normalizeAuthUser(body.user || body, body.claims || body.scope || {});
      if (remoteUser.loginId || remoteUser.ssoSubject) return remoteUser;
    } catch (error) {
      console.warn('[QA] SSO session bridge unavailable:', error.message);
    }
    return localUser;
  }

  function renderAuth(user) {
    user = user || getAuthUser();
    qsa('.login-link').forEach(function (element) { element.href = config.ssoUrl || element.href; });
    qsa('[data-auth-name]').forEach(function (element) { element.textContent = user ? (user.name || user.loginId) : '로그인'; });
    qsa('[data-auth-state]').forEach(function (element) {
      element.textContent = user ? (user.name || user.loginId) + '님으로 로그인됨' : '글 작성은 로그인 후 이용할 수 있습니다.';
    });
    qsa('[data-auth-required]').forEach(function (element) { element.hidden = Boolean(user); });
    qsa('[data-auth-user]').forEach(function (element) { element.hidden = !user; });
  }

  function bindGlobal() {
    renderAuth(getAuthUser());
    authReady = loadAuthUser().catch(function (error) {
      console.error('[QA] SSO session load failed:', error);
      return getAuthUser();
    }).then(function (user) { renderAuth(user); return user; });
    const menuButton = qs('.menu-button');
    const nav = qs('.global-nav');
    if (menuButton && nav) {
      menuButton.addEventListener('click', function () {
        nav.classList.toggle('mobile-open');
      });
    }
  }

  function showToast(message) {
    const toast = qs('#toast');
    if (!toast) return;
    toast.textContent = message;
    toast.classList.add('show');
    window.clearTimeout(showToast.timer);
    showToast.timer = window.setTimeout(function () { toast.classList.remove('show'); }, 2600);
  }

  async function requestJson(path, options) {
    const sameOriginProxy = !config.apiBaseUrl && path === config.createFeedbackPath;
    if (!config.apiBaseUrl && !sameOriginProxy) return { local: true };
    const target = config.apiBaseUrl ? config.apiBaseUrl.replace(/\/$/, '') + path : path;
    const response = await fetch(target, Object.assign({ credentials: 'include' }, options));
    if (!response.ok) {
      const errorBody = await response.json().catch(function () { return {}; });
      throw new Error(errorBody.message || errorBody.error || 'API 요청에 실패했습니다. (' + response.status + ')');
    }
    return response.json().catch(function () { return {}; });
  }

  async function postToApi(path, payload) {
    return requestJson(path, { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(payload) });
  }

  function makeUuid() {
    const bytes = new Uint8Array(16);
    if (window.crypto && typeof window.crypto.getRandomValues === 'function') window.crypto.getRandomValues(bytes);
    else for (let index = 0; index < bytes.length; index += 1) bytes[index] = Math.random() * 256 | 0;
    const timestamp = Date.now();
    bytes[0] = Math.floor(timestamp / 0x10000000000) & 0xff;
    bytes[1] = Math.floor(timestamp / 0x100000000) & 0xff;
    bytes[2] = Math.floor(timestamp / 0x1000000) & 0xff;
    bytes[3] = Math.floor(timestamp / 0x10000) & 0xff;
    bytes[4] = Math.floor(timestamp / 0x100) & 0xff;
    bytes[5] = timestamp & 0xff;
    bytes[6] = (bytes[6] & 0x0f) | 0x70;
    bytes[8] = (bytes[8] & 0x3f) | 0x80;
    const hex = Array.prototype.map.call(bytes, function (byte) { return ('0' + byte.toString(16)).slice(-2); }).join('');
    return hex.slice(0, 8) + '-' + hex.slice(8, 12) + '-' + hex.slice(12, 16) + '-' + hex.slice(16, 20) + '-' + hex.slice(20);
  }

  async function sha256(file) {
    if (!window.crypto || !window.crypto.subtle) return '';
    const digest = await window.crypto.subtle.digest('SHA-256', await file.arrayBuffer());
    return Array.prototype.map.call(new Uint8Array(digest), function (byte) { return ('00' + byte.toString(16)).slice(-2); }).join('');
  }

  async function uploadFiles(files, feedbackId, purpose) {
    files = Array.prototype.slice.call(files || []);
    if (!files.length) return [];
    const descriptors = await Promise.all(files.map(async function (file) {
      return { clientId: makeUuid(), originalFileName: file.name, mimeType: file.type || 'application/octet-stream', fileSize: file.size, checksumSha256: await sha256(file) };
    }));
    if (!config.apiBaseUrl) {
      return descriptors.map(function (item) { return Object.assign(item, { id: makeUuid(), storageBucket: config.storageBucket, storageKey: 'local-preview/' + feedbackId + '/' + item.clientId + '-' + item.originalFileName, purpose: purpose }); });
    }
    const presign = await postToApi(config.presignPath, { feedbackId: feedbackId, workspaceId: config.workspaceId, workspaceCode: config.workspaceCode, bucket: config.storageBucket, purpose: purpose, files: descriptors });
    const uploads = presign.uploads || presign.items || [];
    if (uploads.length !== descriptors.length) throw new Error('첨부파일 업로드 URL을 모두 받지 못했습니다.');
    return Promise.all(uploads.map(async function (upload, index) {
      const file = files[index];
      const headers = Object.assign({}, upload.headers || {});
      if (!headers['Content-Type'] && file.type) headers['Content-Type'] = file.type;
      const response = await fetch(upload.uploadUrl, { method: upload.method || 'PUT', headers: headers, body: file });
      if (!response.ok) throw new Error(file.name + ' 업로드에 실패했습니다.');
      if (!upload.storageKey) throw new Error(file.name + '의 storageKey를 받지 못했습니다.');
      return Object.assign(descriptors[index], upload.metadata || {}, {
        id: upload.id || makeUuid(), storageBucket: upload.storageBucket || config.storageBucket,
        storageKey: upload.storageKey, purpose: purpose
      });
    }));
  }

  function buildFeedbackPayload(post, user, feedbackId, attachments) {
    const categoryCode = CATEGORY_CODES[post.category];
    const imageMetadata = attachments.filter(function (item) { return item.purpose === 'FEEDBACK_ATTACHMENT'; }).map(function (item) {
      return { id: item.id, original_file_name: item.originalFileName, storage_bucket: item.storageBucket, storage_key: item.storageKey, mime_type: item.mimeType, file_size: item.fileSize, checksum_sha256: item.checksumSha256 };
    });
    const payload = { feedbackId: feedbackId, title: post.title, contents: post.content, Category: categoryCode, is_secret: post.secret ? 1 : 0 };
    if (imageMetadata.length) payload.images = imageMetadata;
    return payload;
  }

  function initList() {
    const tableBody = qs('#qaRows');
    if (!tableBody) return;
    const searchForm = qs('#searchForm');
    const empty = qs('#tableEmpty');
    const resultCount = qs('#resultCount');
    const pagination = qs('#pagination');
    let page = 1;

    function render() {
      const query = (qs('#query').value || '').trim().toLowerCase();
      const selectedCategory = qs('input[name="category"]:checked');
      const categoryFilter = selectedCategory ? selectedCategory.value : '전체';
      const onlyMine = qs('#onlyMine').checked;
      const user = getAuthUser();
      const filtered = getPosts().filter(function (post) {
        const matchesCategory = categoryFilter === '전체' || categoryFilter === post.category;
        const haystack = [post.title, post.content, post.company, post.department, post.author].join(' ').toLowerCase();
        const matchesQuery = !query || haystack.indexOf(query) > -1;
        const matchesMine = !onlyMine || (user && (post.author === user.name || post.author === user.loginId));
        return matchesCategory && matchesQuery && matchesMine;
      });
      const pageSize = config.pageSize || 10;
      const totalPages = Math.max(1, Math.ceil(filtered.length / pageSize));
      page = Math.min(page, totalPages);
      const rows = filtered.slice((page - 1) * pageSize, page * pageSize);
      if (resultCount) resultCount.textContent = '총 ' + filtered.length + '건';
      empty.style.display = rows.length ? 'none' : 'block';
      tableBody.innerHTML = rows.map(function (post, index) {
        const isNotice = post.category === '공지사항';
        const number = isNotice ? '공지' : filtered.length - ((page - 1) * pageSize + index);
        const statusClass = post.status === '답변완료' ? 'done' : (post.status === '문의검토' || post.status === '정밀검토' ? 'review' : '');
        return '<tr class="' + (isNotice ? 'notice-row' : '') + '" data-id="' + escapeHtml(post.id) + '">' +
          '<td>' + number + '</td><td class="category-cell">' + escapeHtml(post.category.replace('문의', '')) + '</td>' +
          '<td>' + escapeHtml(post.company) + '</td><td>' + escapeHtml(post.department) + '</td><td>' + escapeHtml(post.author) + '</td>' +
          '<td class="subject"><span class="subject-link">' + (post.secret ? '<span class="lock">🔒</span>' : '') + escapeHtml(post.title) + '</span>' + (!isNotice && post.date === '2026-09-17' ? '<span class="new-mark">N</span>' : '') + '</td>' +
          '<td>' + escapeHtml(post.date) + '</td><td>' + (post.status ? '<span class="status ' + statusClass + '">' + escapeHtml(post.status) + '</span>' : '-') + '</td></tr>';
      }).join('');
      qsa('#qaRows tr').forEach(function (row) { row.addEventListener('click', function () { window.location.href = 'detail.html?id=' + encodeURIComponent(row.dataset.id); }); });
      pagination.innerHTML = Array.from({ length: totalPages }, function (_, i) { return '<button type="button" class="' + (i + 1 === page ? 'active' : '') + '" data-page="' + (i + 1) + '">' + (i + 1) + '</button>'; }).join('');
      qsa('#pagination button').forEach(function (button) { button.addEventListener('click', function () { page = Number(button.dataset.page); render(); window.scrollTo({ top: 360, behavior: 'smooth' }); }); });
    }

    searchForm.addEventListener('submit', function (event) { event.preventDefault(); page = 1; render(); });
    qsa('input[name="category"], #onlyMine').forEach(function (input) { input.addEventListener('change', function () { page = 1; render(); }); });
    render();
  }

  function initWrite() {
    const form = qs('#qaForm');
    if (!form) return;
    const user = getAuthUser();
    const errorBox = qs('#formError');
    if (!user) {
      qs('#writeFields').setAttribute('aria-disabled', 'true');
    }
    form.addEventListener('submit', async function (event) {
      event.preventDefault();
      console.info('[QA] feedback submit started');
      errorBox.style.display = 'none';
      const currentUser = await (authReady || Promise.resolve(getAuthUser()));
      console.info('[QA] SSO user resolved:', Boolean(currentUser), currentUser ? { hasRequesterId: Boolean(currentUser.requesterId), hasTenantId: Boolean(currentUser.requesterTenantId), hasPhone: Boolean(currentUser.phone) } : null);
      if (!currentUser) { errorBox.textContent = '로그인 후 문의를 등록할 수 있습니다.'; errorBox.style.display = 'block'; return; }
      if (!currentUser.requesterId || !currentUser.requesterTenantId) { errorBox.textContent = 'SSO에서 작성자 UUID와 테넌트 정보를 확인하지 못했습니다. 다시 로그인한 뒤 시도해주세요.'; errorBox.style.display = 'block'; return; }
      const title = qs('#title').value.trim();
      const content = qs('#content').value.trim();
      if (!qs('#category').value || !title || !content) { errorBox.textContent = '구분, 제목, 내용을 모두 입력해주세요.'; errorBox.style.display = 'block'; return; }
      const feedbackId = makeUuid();
      const createdAt = new Date().toISOString();
      const post = { id: feedbackId, feedbackId: feedbackId, category: qs('#category').value, company: currentUser.familyCompany || currentUser.company || '외부 사용자', department: currentUser.department || '-', author: currentUser.name || currentUser.loginId, title: title, date: createdAt.slice(0, 10), createdAt: createdAt, status: '접수', secret: qs('#secret').checked, content: content };
      const submitButton = qs('#submitButton');
      submitButton.disabled = true;
      submitButton.textContent = '등록 중...';
      try {
        const attachments = await uploadFiles(qs('#attachment').files, feedbackId, 'FEEDBACK_ATTACHMENT');
        const payload = buildFeedbackPayload(post, currentUser, feedbackId, attachments);
        console.info('[QA] sending feedback to Worker:', config.createFeedbackPath);
        const result = await postToApi(config.createFeedbackPath, payload);
        console.info('[QA] Worker feedback response:', result);
        post.id = result.id || post.id;
        savePost(post);
        showToast(result.local ? '테스트 글로 저장했습니다. UUID가 생성되었습니다.' : '문의가 등록되었습니다.');
        window.setTimeout(function () { window.location.href = 'detail.html?id=' + encodeURIComponent(post.id); }, 500);
      } catch (error) {
        console.error('[QA] feedback submit failed:', error);
        errorBox.textContent = error.message || '등록 중 오류가 발생했습니다.';
        errorBox.style.display = 'block';
        submitButton.disabled = false;
        submitButton.textContent = '문의 등록';
      }
    });
  }

  function initDetail() {
    const detail = qs('#detail');
    if (!detail) return;
    const id = new URLSearchParams(window.location.search).get('id') || 'EG-1048';
    const post = getPosts().find(function (item) { return item.id === id; }) || seedPosts[0];
    qs('[data-detail-category]').textContent = post.category;
    qs('[data-detail-title]').textContent = post.title;
    qs('[data-detail-status]').textContent = post.status || '공지';
    qs('[data-detail-date]').textContent = post.date;
    qs('[data-detail-author]').textContent = post.author;
    qs('[data-detail-company]').textContent = post.company;
    qs('[data-detail-department]').textContent = post.department;
    qs('[data-detail-content]').textContent = post.content;
    qs('[data-detail-secret]').hidden = !post.secret;
    const comments = getComments()[post.id] || [];
    qs('#commentCount').textContent = comments.length;
    qs('#comments').innerHTML = comments.length ? comments.map(function (comment) { return '<div class="comment"><div class="comment-meta"><strong>' + escapeHtml(comment.author) + '</strong><span>' + escapeHtml(comment.date) + '</span></div><div class="comment-content">' + escapeHtml(comment.content) + '</div></div>'; }).join('') : '<div class="comment-empty">등록된 답변이 없습니다.</div>';
    qs('#backButton').addEventListener('click', function () { window.location.href = 'index.html'; });
  }

  document.addEventListener('DOMContentLoaded', function () { bindGlobal(); initList(); initWrite(); initDetail(); });
})();