(function () {
  'use strict';

  var FILE_PREFIX = 'soondesign_file:';

  function soonIsWebPortal() {
    return typeof window !== 'undefined' && window.platformBridge && !window.fs;
  }

  function soonGetAccessToken() {
    if (typeof window.soonGetAccessToken === 'function') {
      return window.soonGetAccessToken();
    }
    try { return localStorage.getItem('soon_access') || ''; } catch (e) { return ''; }
  }

  function soonParseFileKey(key) {
    if (!key || typeof key !== 'string') return null;
    var m = key.match(/^soondesign_file:(\d+)(?::v(\d+))?$/);
    if (!m) return null;
    return { id: parseInt(m[1], 10), version: m[2] ? parseInt(m[2], 10) : null };
  }

  function soonMakeFileKey(id, version) {
    return FILE_PREFIX + id + ':v' + version;
  }

  function soonNormalizeSoonName(pathOrName) {
    var n = String(pathOrName || 'design.soon');
    if (n.indexOf(FILE_PREFIX) === 0) {
      var meta = window._soonFileMeta;
      return (meta && meta.name) ? meta.name : 'design.soon';
    }
    if (n.indexOf('soondesign_session:') === 0) {
      n = n.replace(/^soondesign_session:/, '');
    }
    n = n.split(/[/\\]/).pop();
    if (!/\.soon$/i.test(n)) n = (n.replace(/\.soon$/i, '') || 'design') + '.soon';
    return n;
  }

  function soonApplyCloudMeta(data) {
    if (!data || !data.id) return null;
    window._soonFileMeta = { id: data.id, version: data.version, name: data.name };
    return soonMakeFileKey(data.id, data.version);
  }

  function soonBindFileMeta(fileKey, opts) {
    if (!fileKey || fileKey.indexOf(FILE_PREFIX) !== 0) return;
    var parsed = soonParseFileKey(fileKey);
    if (!parsed) return;
    var prev = window._soonFileMeta || {};
    window._soonFileMeta = {
      id: parsed.id,
      version: parsed.version != null ? parsed.version : prev.version,
      name: (opts && opts.name) || (prev.id === parsed.id ? prev.name : '') || ''
    };
  }

  function soonFormatOpenTitle(name) {
    if (!name) return '';
    if (typeof window.soonDisplayFileName === 'function') return window.soonDisplayFileName(name);
    return String(name).split(/[/\\]/).pop();
  }

  var _membership = {
    loaded: false,
    isMember: false,
    name: '免费版',
    tier: 'free',
    expiresAt: null,
    loading: null,
  };

  function soonApiBase() {
    var cfg = (typeof window !== 'undefined' && window.SOON_DEPLOY_CONFIG && window.SOON_DEPLOY_CONFIG.api_v1_base);
    if (cfg) return String(cfg).replace(/\/+$/, '');
    if (typeof window !== 'undefined' && window.location) {
      return window.location.origin + '/api/v1';
    }
    return '/api/v1';
  }

  function formatExpireDate(iso) {
    if (!iso) return '';
    var d = new Date(String(iso).replace(' ', 'T'));
    if (isNaN(d.getTime())) return '';
    var y = d.getFullYear();
    var mo = String(d.getMonth() + 1);
    var day = String(d.getDate());
    if (mo.length < 2) mo = '0' + mo;
    if (day.length < 2) day = '0' + day;
    return y + '-' + mo + '-' + day;
  }

  function soonApplyMembership(data) {
    var m = data || {};
    var sub = m.subscription || {};
    var isMember = m.is_member === true
      || m.tier === 'member'
      || m.tier === 'pro'
      || (sub.status && sub.status !== 'free' && sub.status !== 'expired');
    _membership = {
      loaded: true,
      isMember: !!isMember,
      name: m.name || (isMember ? '订阅版' : '免费版'),
      tier: m.tier || (isMember ? 'member' : 'free'),
      expiresAt: sub.expires_at || null,
      loading: null,
    };
    if (typeof window.soonRefreshPortalIdentity === 'function') {
      window.soonRefreshPortalIdentity();
    }
    return _membership;
  }

  function soonRefreshPortalIdentity() {
    var el = document.getElementById('auth_identity');
    if (!el) return;
    if (!soonGetAccessToken()) {
      el.style.display = 'none';
      el.textContent = '';
      return;
    }
    if (!_membership.loaded) {
      soonLoadMembership(false).then(function () {
        soonRefreshPortalIdentity();
      });
      return;
    }
    var text;
    var cls = 'soon-portal-identity';
    if (_membership.isMember) {
      cls += ' soon-portal-identity--member';
      text = _membership.name || '订阅版';
      if (_membership.expiresAt) {
        text += ' · 至 ' + formatExpireDate(_membership.expiresAt);
      }
    } else {
      cls += ' soon-portal-identity--free';
      text = _membership.name || '免费版';
    }
    el.className = cls;
    el.textContent = text;
    el.style.display = 'inline-flex';
    var account = document.getElementById('auth_account');
    if (account) account.style.display = 'inline-flex';
  }

  function soonLoadMembership(force) {
    if (_membership.loaded && !force) return Promise.resolve(_membership);
    if (_membership.loading && !force) return _membership.loading;
    if (!soonGetAccessToken()) {
      soonApplyMembership(null);
      return Promise.resolve(_membership);
    }
    var url = soonApiBase() + '/plans/me';
    var fetchFn = typeof window.soonAuthedFetch === 'function'
      ? window.soonAuthedFetch(url, { headers: { Accept: 'application/json' } })
      : fetch(url, { headers: { Authorization: 'Bearer ' + soonGetAccessToken(), Accept: 'application/json' } });
    _membership.loading = fetchFn
      .then(function (r) { return r.json(); })
      .then(function (j) {
        if (j && j.ok && j.data) {
          soonApplyMembership(j.data.membership || j.data);
        } else {
          soonApplyMembership(null);
        }
        return _membership;
      })
      .catch(function () {
        soonApplyMembership(null);
        return _membership;
      })
      .finally(function () {
        _membership.loading = null;
      });
    return _membership.loading;
  }

  function soonIsMember() {
    return !!_membership.isMember;
  }

  function soonMemberPageUrl() {
    return 'member.web.html';
  }

  function soonRequireMember(actionLabel) {
    if (!soonGetAccessToken()) return soonRequireLogin(actionLabel);
    if (soonIsMember()) return true;
    if (typeof window.soonShowSubscribeGate === 'function') {
      window.soonShowSubscribeGate({ action: actionLabel || '使用' });
    } else {
      soonToast('订阅后可' + (actionLabel || '使用'), 'warn');
    }
    return false;
  }

  function soonGuardCloudSave() {
    if (!soonIsWebPortal()) return true;
    return soonRequireMember('保存');
  }

  function soonGuardMemberPreview() {
    if (!soonIsWebPortal()) return true;
    return soonRequireMember('预览效果');
  }

  function soonGuardMemberExport() {
    if (!soonIsWebPortal()) return true;
    return soonRequireMember('导出');
  }

  function soonToast(message, type) {
    if (typeof window.soonToast === 'function') window.soonToast(message, type);
  }

  function soonRequireLogin(actionLabel) {
    if (soonGetAccessToken()) return true;
    var label = actionLabel || '继续';
    soonToast('请先登录后再' + label, 'warn');
    if (typeof window.soonRedirectToLogin === 'function') {
      setTimeout(function () { window.soonRedirectToLogin(); }, 600);
    } else if (typeof window.redirectToLogin === 'function') {
      setTimeout(function () { window.redirectToLogin(); }, 600);
    } else {
      window.location.href = 'login.web.html';
    }
    return false;
  }

  function soonParseApiError(response, bodyText) {
    var msg = '操作失败，请稍后重试';
    var code = '';
    try {
      var j = bodyText ? JSON.parse(bodyText) : null;
      if (j && j.message) msg = j.message;
      if (j && j.error) code = j.error;
    } catch (e) { /* ignore */ }
    if (response && response.status === 401) {
      return { status: 401, message: '请先登录', code: code || 'unauthorized' };
    }
    if (response && response.status === 409) {
      return { status: 409, message: '文件已被其他端修改，请刷新后重试', code: code || 'conflict' };
    }
    if (response && response.status === 403 && (code === 'membership_required' || msg.indexOf('订阅') >= 0 || msg.indexOf('会员') >= 0)) {
      return { status: 403, message: msg || '此功能需要订阅后使用', code: code || 'membership_required' };
    }
    if (response && response.status === 413) {
      if (code === 'file_limit_exceeded') {
        return { status: 413, message: msg || '文件数量已达上限，请清理文件或续订', code: code };
      }
      return { status: 413, message: msg || '存储空间不足，请清理文件或续订', code: code || 'quota_exceeded' };
    }
    if (response && response.status === 404) {
      return { status: 404, message: '文件不存在', code: code || 'not_found' };
    }
    return { status: response ? response.status : 0, message: msg, code: code };
  }

  function soonShowApiError(info) {
    if (!info) return;
    var kind = 'error';
    if (info.status === 401) kind = 'warn';
    else if (info.status === 409) kind = 'warn';
    else if (info.status === 413) kind = 'warn';
    else if (info.status === 403 && info.code === 'membership_required') kind = 'warn';
    soonToast(info.message, kind);
    if (info.status === 401) {
      soonRequireLogin('操作');
    } else if (info.status === 403 && info.code === 'membership_required') {
      if (typeof window.soonShowSubscribeGate === 'function') {
        window.soonShowSubscribeGate({ action: '使用' });
      }
    }
  }

  function soonDisplayFileName(pathOrKey) {
    if (!pathOrKey) return '';
    if (pathOrKey.indexOf(FILE_PREFIX) === 0) {
      var meta = window._soonFileMeta;
      if (meta && meta.name) return meta.name;
      var parsed = soonParseFileKey(pathOrKey);
      return parsed ? ('文件 #' + parsed.id) : pathOrKey;
    }
    if (pathOrKey.indexOf('soondesign_session:') === 0) {
      return pathOrKey.replace(/^soondesign_session:/, '');
    }
    return String(pathOrKey).split(/[/\\]/).pop();
  }

  window.soonIsWebPortal = soonIsWebPortal;
  window.soonParseFileKey = soonParseFileKey;
  window.soonMakeFileKey = soonMakeFileKey;
  window.soonNormalizeSoonName = soonNormalizeSoonName;
  window.soonApplyCloudMeta = soonApplyCloudMeta;
  window.soonBindFileMeta = soonBindFileMeta;
  window.soonFormatOpenTitle = soonFormatOpenTitle;
  window.soonGuardCloudSave = soonGuardCloudSave;
  window.soonGuardMemberPreview = soonGuardMemberPreview;
  window.soonGuardMemberExport = soonGuardMemberExport;
  window.soonLoadMembership = soonLoadMembership;
  window.soonApplyMembership = soonApplyMembership;
  window.soonRefreshPortalIdentity = soonRefreshPortalIdentity;
  window.soonIsMember = soonIsMember;
  window.soonRequireMember = soonRequireMember;
  window.soonRequireLogin = soonRequireLogin;
  window.soonParseApiError = soonParseApiError;
  window.soonShowApiError = soonShowApiError;
  window.soonDisplayFileName = soonDisplayFileName;
})();