Learn_System/frontend/js/admin/sections/access.js

'use strict';
/* admin → access section — открыть/закрыть доступ к учебникам и экзаменам
 * для классов и отдельных учеников. Модель allowlist: по умолчанию закрыто,
 * правило ученика важнее правила класса. */
(function () {
  'use strict';
  let inited = false;
  let _catalog = null;   // { textbooks:[], exams:[] }
  let _targets = null;   // { classes:[{id,name,students:[]}], looseStudents:[] }
  let _sel = null;       // { type:'textbook'|'exam', ref, title }
  let _rules = { classRules: {}, studentRules: {} };
  const _open = new Set(); // class ids развёрнутых строк

  const esc = (s) => (window.LS && LS.esc ? LS.esc(s) : String(s == null ? '' : s));

  async function load() {
    try {
      [_catalog, _targets] = await Promise.all([LS.accessCatalog(), LS.accessTargets()]);
      renderList();
    } catch (e) {
      document.getElementById('acc-textbooks').innerHTML =
        `<p style="color:var(--danger);font-size:13px">Ошибка загрузки: ${esc(e.message)}</p>`;
    }
  }

  function itemBtn(type, ref, title, sub) {
    const active = _sel && _sel.type === type && _sel.ref === ref;
    return `<button class="acc-item${active ? ' active' : ''}" data-type="${type}" data-ref="${esc(ref)}"
              onclick="accSelect('${type}','${esc(ref)}')"
              style="display:block;width:100%;text-align:left;border:none;background:${active ? 'var(--accent-soft,#eef2ff)' : 'transparent'};
                     padding:8px 10px;border-radius:8px;cursor:pointer;font-family:inherit;font-size:13.5px;color:var(--text-1);margin-bottom:2px">
              <span style="font-weight:${active ? 600 : 500}">${esc(title)}</span>
              ${sub ? `<span style="color:var(--muted);font-size:12px"> · ${esc(sub)}</span>` : ''}
            </button>`;
  }

  function renderList() {
    const tb = document.getElementById('acc-textbooks');
    const ex = document.getElementById('acc-exams');
    tb.innerHTML = (_catalog.textbooks || [])
      .map(t => itemBtn('textbook', t.slug, t.title, t.grade ? t.grade + ' кл.' : '')).join('')
      || '<p style="color:var(--muted);font-size:12px;padding:6px 10px">Нет учебников</p>';
    ex.innerHTML = (_catalog.exams || [])
      .map(e => itemBtn('exam', e.exam_key, e.title, e.grade ? e.grade + ' кл.' : '')).join('')
      || '<p style="color:var(--muted);font-size:12px;padding:6px 10px">Нет экзаменов</p>';
  }

  async function select(type, ref) {
    const src = type === 'textbook' ? _catalog.textbooks : _catalog.exams;
    const keyName = type === 'textbook' ? 'slug' : 'exam_key';
    const item = (src || []).find(x => x[keyName] === ref);
    _sel = { type, ref, title: item ? item.title : ref };
    renderList();
    document.getElementById('acc-detail-empty').style.display = 'none';
    const det = document.getElementById('acc-detail');
    det.style.display = '';
    det.innerHTML = '<p style="color:var(--muted);font-size:13px">Загрузка…</p>';
    try {
      _rules = await LS.accessRules(type, ref);
      renderDetail();
    } catch (e) {
      det.innerHTML = `<p style="color:var(--danger);font-size:13px">Ошибка: ${esc(e.message)}</p>`;
    }
  }

  /* tri-state кнопки для ученика внутри класса */
  function studentTri(uid) {
    const v = _rules.studentRules[uid];               // 1 | 0 | undefined
    const state = v === 1 ? 'open' : v === 0 ? 'closed' : 'inherit';
    const btn = (val, label, on) =>
      `<button onclick="accSetStudent(${uid},${val})"
         style="border:1px solid var(--border);background:${on ? 'var(--accent,#4f46e5)' : 'transparent'};
                color:${on ? '#fff' : 'var(--text-3)'};font-size:11.5px;padding:3px 9px;cursor:pointer;font-family:inherit;
                ${val === "null" ? 'border-radius:7px 0 0 7px' : val === 0 ? 'border-radius:0 7px 7px 0;border-left:none' : 'border-left:none'}">${label}</button>`;
    return `<span class="acc-tri" style="display:inline-flex">
        ${btn('null', 'Наследовать', state === 'inherit')}
        ${btn(1, 'Открыт', state === 'open')}
        ${btn(0, 'Закрыт', state === 'closed')}
      </span>`;
  }

  function classRow(c) {
    const openToClass = _rules.classRules[c.id] === 1;
    const expanded = _open.has(c.id);
    const students = c.students || [];
    const studentsHtml = expanded ? `
      <div style="padding:6px 0 10px 26px">
        ${students.length ? students.map(s => `
          <div style="display:flex;align-items:center;justify-content:space-between;gap:10px;padding:5px 0;border-top:1px solid var(--border-soft,#f0f0f0)">
            <span style="font-size:13px;color:var(--text-1)">${esc(s.name || s.email)}</span>
            ${studentTri(s.id)}
          </div>`).join('')
          : '<p style="color:var(--muted);font-size:12px;margin:4px 0">В классе нет учеников</p>'}
      </div>` : '';
    return `
      <div class="acc-class" style="border:1px solid var(--border);border-radius:10px;margin-bottom:10px;padding:10px 12px">
        <div style="display:flex;align-items:center;justify-content:space-between;gap:12px">
          <button onclick="accToggleExpand(${c.id})"
            style="border:none;background:transparent;cursor:pointer;font-family:inherit;font-size:14px;font-weight:600;color:var(--text-1);display:flex;align-items:center;gap:6px">
            <span style="display:inline-block;transition:transform .15s;transform:rotate(${expanded ? 90 : 0}deg)">▸</span>
            ${esc(c.name)}${c.teacher_name ? `<span style="font-weight:400;color:var(--muted);font-size:12px">· ${esc(c.teacher_name)}</span>` : ''}
          </button>
          <label class="acc-switch" style="display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--text-3);cursor:pointer">
            <span>${openToClass ? 'Открыт' : 'Закрыт'}</span>
            <input type="checkbox" ${openToClass ? 'checked' : ''} onchange="accSetClass(${c.id}, this.checked)">
          </label>
        </div>
        ${studentsHtml}
      </div>`;
  }

  function looseRow(s) {
    const open = _rules.studentRules[s.id] === 1;
    return `
      <div style="display:flex;align-items:center;justify-content:space-between;gap:10px;padding:7px 12px;border:1px solid var(--border);border-radius:9px;margin-bottom:6px">
        <span style="font-size:13px;color:var(--text-1)">${esc(s.name || s.email)} <span style="color:var(--muted);font-size:11.5px">${esc(s.email)}</span></span>
        <label style="display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--text-3);cursor:pointer">
          <span>${open ? 'Открыт' : 'Закрыт'}</span>
          <input type="checkbox" ${open ? 'checked' : ''} onchange="accSetStudent(${s.id}, this.checked ? 1 : null)">
        </label>
      </div>`;
  }

  function renderDetail() {
    const det = document.getElementById('acc-detail');
    const classes = _targets.classes || [];
    const loose = _targets.looseStudents || [];
    det.innerHTML = `
      <div style="display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px">
        <div style="font-size:16px;font-weight:700;color:var(--text-1)">${esc(_sel.title)}</div>
        <span class="badge ${_sel.type === 'exam' ? 'badge-warn' : 'badge-info'}" style="font-size:12px">${_sel.type === 'exam' ? 'Экзамен' : 'Учебник'}</span>
      </div>
      <div class="acc-classes">
        ${classes.length ? classes.map(classRow).join('')
          : '<p style="color:var(--muted);font-size:13px">Нет классов.</p>'}
      </div>
      ${loose.length ? `
        <div style="margin-top:18px">
          <div style="font-weight:600;font-size:13px;color:var(--text-3);margin-bottom:8px">Отдельные ученики (без класса)</div>
          ${loose.map(looseRow).join('')}
        </div>` : ''}
    `;
  }

  /* ── handlers (optimistic update) ── */
  async function setClass(classId, checked) {
    const allow = checked ? 1 : null;
    try {
      await LS.accessSetRule(_sel.type, _sel.ref, 'class', classId, allow);
      if (allow === 1) _rules.classRules[classId] = 1;
      else delete _rules.classRules[classId];
      renderDetail();
      LS.toast(checked ? 'Открыт классу' : 'Закрыт для класса', 'success');
    } catch (e) { LS.toast('Ошибка: ' + e.message, 'error'); renderDetail(); }
  }

  async function setStudent(uid, allow) {
    // allow: 1 | 0 | null  (строка 'null' приходит из tri-кнопок)
    if (allow === 'null') allow = null;
    try {
      await LS.accessSetRule(_sel.type, _sel.ref, 'student', uid, allow);
      if (allow === 1) _rules.studentRules[uid] = 1;
      else if (allow === 0) _rules.studentRules[uid] = 0;
      else delete _rules.studentRules[uid];
      renderDetail();
    } catch (e) { LS.toast('Ошибка: ' + e.message, 'error'); renderDetail(); }
  }

  function toggleExpand(classId) {
    if (_open.has(classId)) _open.delete(classId); else _open.add(classId);
    renderDetail();
  }

  window.accSelect       = select;
  window.accSetClass     = setClass;
  window.accSetStudent   = setStudent;
  window.accToggleExpand = toggleExpand;

  window.AdminSections = window.AdminSections || {};
  window.AdminSections.access = {
    init: async () => { if (inited) return; inited = true; await load(); },
    reload: load,
  };
})();