// Reflector Dashboard — web front-end for SvxReflector
// Copyright (C) 2026 SA7AUX (Björn)
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify it under
// the terms of the GNU Affero General Public License as published by the Free
// Software Foundation, either version 3 of the License, or (at your option) any
// later version. See the LICENSE file for details.

'use strict';
// TG List editor — canonical TG -> name/system list (served publicly by
// /tglist.php). Mirrors the Global Bans admin pattern. Add/delete are admin-only;
// an owner (matching callsign) can edit their own TG. The server enforces this;
// the UI only reflects it.
var $ = function (id) { return document.getElementById(id); };
var tglData = [], tglCanAdmin = false, tglMyCalls = [], tglEditingTg = null;

function tglEsc(s) { var d = document.createElement('div'); d.textContent = s == null ? '' : s; return d.innerHTML; }
function tglMsg(t, err) {
  var e = $('tglMsg'); if (!e) return;
  if (!t) { e.style.display = 'none'; return; }
  e.style.display = 'block'; e.textContent = t; e.style.color = err ? '#ff8080' : '#00ff80';
}

async function tapi(body) {
  var r = await fetch('/auth/tglist_api.php', {
    method: 'POST', credentials: 'same-origin',
    headers: { 'Content-Type': 'application/json', 'X-CSRF-Token': window._csrfToken || '' },
    body: JSON.stringify(body)
  });
  return r.json().catch(function () { return null; });
}

function tglCanEdit(row) {
  if (tglCanAdmin) return true;
  var o = (row.owner || '').toUpperCase();
  return o !== '' && tglMyCalls.indexOf(o) >= 0;
}

// Filter predicate from the search box: try regex, fall back to a literal
// substring if the pattern is invalid — it never throws.
function tglMatcher(q) {
  q = (q || '').trim();
  if (!q) return function () { return true; };
  var re;
  try { re = new RegExp(q, 'i'); }
  catch (e) { var lit = q.toLowerCase(); return function (s) { return s.toLowerCase().indexOf(lit) >= 0; }; }
  return function (s) { return re.test(s); };
}

function tglRender() {
  var body = $('tglBody'); if (!body) return;
  var match = tglMatcher($('tglSearch').value);
  var key = $('tglSortKey').value;
  var dir = $('tglSortDir').getAttribute('data-dir') === 'desc' ? -1 : 1;
  var rows = tglData.filter(function (r) {
    return match([r.tg, r.name, r.system, r.allstar, r.mode, r.owner].join(' '));
  });
  rows.sort(function (a, b) {
    var x = a[key], y = b[key];
    if (key === 'tg') return (x - y) * dir;
    x = (x || '').toLowerCase(); y = (y || '').toLowerCase();
    return (x < y ? -1 : x > y ? 1 : 0) * dir;
  });
  body.innerHTML = '';
  rows.forEach(function (r) {
    var tr = document.createElement('tr');
    var canEdit = tglCanEdit(r);
    tr.innerHTML =
      '<td class="mono">' + tglEsc(r.tg) + '</td>' +
      '<td>' + tglEsc(r.name) + '</td>' +
      '<td>' + tglEsc(r.system) + '</td>' +
      '<td class="mono">' + tglEsc(r.allstar) + '</td>' +
      '<td>' + tglEsc(r.mode) + '</td>' +
      '<td class="mono">' + tglEsc(r.owner) + '</td>' +
      '<td class="text-end" style="white-space:nowrap;">' +
        (canEdit ? '<button class="btn btn-outline-secondary btn-sm" data-tgl-edit="' + tglEsc(r.tg) + '" style="font-size:10px;padding:1px 6px;">edit</button>' : '') +
        (tglCanAdmin ? ' <button class="btn btn-outline-danger btn-sm" data-tgl-del="' + tglEsc(r.tg) + '" style="font-size:10px;padding:1px 6px;">del</button>' : '') +
      '</td>';
    body.appendChild(tr);
  });
  $('tglCount').textContent = rows.length + ' / ' + tglData.length + ' TG';
}

function tglOpenForm(row) {
  var isNew = !row;
  tglEditingTg = isNew ? null : row.tg;
  $('tglfTg').value      = isNew ? '' : row.tg;
  $('tglfName').value    = isNew ? '' : row.name;
  $('tglfSystem').value  = isNew ? '' : row.system;
  $('tglfAllstar').value = isNew ? '' : row.allstar;
  $('tglfMode').value    = isNew ? '' : row.mode;
  $('tglfOwner').value   = isNew ? '' : row.owner;
  $('tglfTg').disabled    = !isNew;   // TG fixed on edit, set only when adding
  $('tglfOwner').disabled = true;     // owner is display-only (set via request approval)
  $('tglForm').style.display = 'block';
  $('tglfName').focus();
}
function tglCloseForm() { $('tglForm').style.display = 'none'; tglEditingTg = null; }

async function tglSave() {
  var tg = parseInt($('tglfTg').value, 10);
  if (!tg || tg <= 0) { tglMsg('TG must be a positive number', true); return; }
  var body = {
    action: 'save', tg: tg,
    name: $('tglfName').value, system: $('tglfSystem').value,
    allstar: $('tglfAllstar').value.trim(), mode: $('tglfMode').value
  };
  var res = await tapi(body);
  if (res && res.ok) { tglMsg('Saved TG ' + tg, false); tglCloseForm(); await tglLoad(); }
  else tglMsg((res && res.error) || 'Failed', true);
}

async function tglDelete(tg) {
  if (!confirm('Delete TG ' + tg + '?')) return;
  var res = await tapi({ action: 'delete', tg: parseInt(tg, 10) });
  if (res && res.ok) { tglMsg('Deleted TG ' + tg, false); await tglLoad(); }
  else tglMsg((res && res.error) || 'Failed', true);
}

async function tglLoad() {
  var j = await tapi({ action: 'list' });
  if (!j || !j.ok) return;
  tglData = j.tgs || [];
  tglCanAdmin = !!j.can_admin;
  tglMyCalls = (j.my_calls || []).map(function (s) { return (s || '').toUpperCase(); });
  $('btnTglAdd').style.display = tglCanAdmin ? '' : 'none';
  var ro = $('tglRoBadge');
  if (ro) ro.style.display = (tglCanAdmin || tglMyCalls.length) ? 'none' : '';
  tglRender();
}

document.addEventListener('DOMContentLoaded', function () {
  fetch('/auth/me.php', { credentials: 'same-origin' })
    .then(function (r) { return r.json(); })
    .then(function (j) { if (j && j.csrf_token) window._csrfToken = j.csrf_token; })
    .catch(function () {})
    .finally(tglLoad);

  $('btnTglRefresh').addEventListener('click', tglLoad);
  $('btnTglAdd').addEventListener('click', function () { tglOpenForm(null); });
  $('tglfSave').addEventListener('click', tglSave);
  $('tglfCancel').addEventListener('click', tglCloseForm);
  $('tglSearch').addEventListener('input', tglRender);
  $('tglSortKey').addEventListener('change', tglRender);
  $('tglSortDir').addEventListener('click', function () {
    var b = $('tglSortDir');
    var d = b.getAttribute('data-dir') === 'asc' ? 'desc' : 'asc';
    b.setAttribute('data-dir', d);
    b.innerHTML = d === 'asc' ? '&#9650; asc' : '&#9660; desc';
    tglRender();
  });
  $('tglBody').addEventListener('click', function (e) {
    var ed = e.target.closest('button[data-tgl-edit]');
    if (ed) {
      var tg = parseInt(ed.getAttribute('data-tgl-edit'), 10);
      var row = tglData.filter(function (r) { return r.tg === tg; })[0];
      if (row) tglOpenForm(row);
      return;
    }
    var de = e.target.closest('button[data-tgl-del]');
    if (de) tglDelete(de.getAttribute('data-tgl-del'));
  });
});