// Contracts App — весь JS на VM (contracts.kube5s.ru)
// Lucee: только домен + index.cfm-скелет
var VM_API = 'https://contracts.kube5s.ru';
var UPLOAD_URL = VM_API + '/upload';
var CONVERT_URL = VM_API + '/convert-doc';
var UNZIP_URL = VM_API + '/unzip-upload';
var UNZIP_URL = 'https://contracts.kube5s.ru/unzip-upload';
var SITE_URL = ''; // same origin for api calls

var fileInput = document.getElementById('fileInput');
var fileTable = document.getElementById('fileTable');
var fileQueue = [];
var contractId = null;
var batchId = crypto.randomUUID();  // классификация: привязка всех файлов сессии

function formatSize(bytes) {
  if (!bytes || bytes === 0) return '—';
  if (bytes < 1024) return bytes + ' B';
  if (bytes < 1048576) return (bytes / 1024).toFixed(1) + ' KB';
  return (bytes / 1048576).toFixed(1) + ' MB';
}

function formatDate(ts) {
  if (!ts) return '—';
  var d = new Date(ts);
  return d.toLocaleDateString('ru-RU') + ' ' + d.toLocaleTimeString('ru-RU', {hour:'2-digit',minute:'2-digit'});
}

function renderTable() {
  if (fileQueue.length === 0) {
    fileTable.innerHTML = '<tr class="empty-row"><td colspan="7">Нет файлов — выберите .docx / .pdf</td></tr>';
  } else {
    fileTable.innerHTML = fileQueue.map(function(f, i) {
      var isFirst = (i === 0);
      var isLast = (i === fileQueue.length - 1);
      var arrows = '<button class="arrow-btn" onclick="moveUp(' + i + ')" ' + (isFirst ? 'disabled' : '') + ' title="Вверх">▲</button>' +
                   '<button class="arrow-btn" onclick="moveDown(' + i + ')" ' + (isLast ? 'disabled' : '') + ' title="Вниз">▼</button>';
      return '<tr id="row_' + i + '" class="' + (isFirst ? 'first-row' : '') + '">' +
        '<td class="name-cell">' + f.name + '</td>' +
        '<td style="font-size:12px;color:var(--muted);">' + formatDate(f.lastModified) + '</td>' +
        '<td class="num-cell" style="font-size:12px;color:var(--muted);">' + formatSize(f.size) + '</td>' +
        '<td class="status-cell">' + (f.status || '') + '</td>' +
        '<td style="text-align:center;">' + arrows + '</td>' +
        '<td><button class="info-btn' + (f.doc_id ? ' visible' : '') + '" onclick="showText(' + i + ')" title="Текст / Распарсено"><i data-lucide="file-text" style="width:16px;height:16px;"></i></button></td>' +
        '<td><button class="remove-btn" onclick="removeFile(' + i + ')" title="Удалить"><i data-lucide="trash-2" style="width:16px;height:16px;"></i></button></td>' +
        '</tr>';
    }).join('');
  }
  lucide.createIcons();
}

function removeFile(i) {
  fileQueue.splice(i, 1);
  if (fileQueue.length === 0) contractId = null;
  renderTable();
}
window.removeFile = removeFile;

function moveUp(i) {
  if (i <= 0) return;
  var tmp = fileQueue[i]; fileQueue[i] = fileQueue[i-1]; fileQueue[i-1] = tmp;
  renderTable();
}
function moveDown(i) {
  if (i >= fileQueue.length - 1) return;
  var tmp = fileQueue[i]; fileQueue[i] = fileQueue[i+1]; fileQueue[i+1] = tmp;
  renderTable();
}
window.moveUp = moveUp;
window.moveDown = moveDown;

// ── О сервисе ────────────────────────────────────────────────
function openAbout() {
  document.getElementById('aboutModalOverlay').classList.add('open');
}
function closeAbout(e) {
  if (e && e.target !== document.getElementById('aboutModalOverlay')) return;
  document.getElementById('aboutModalOverlay').classList.remove('open');
}
window.openAbout = openAbout;
window.closeAbout = closeAbout;

// ── Автозагрузка при выборе файлов ──────────────────────────
fileInput.addEventListener('change', async function() {
  var newFiles = Array.from(fileInput.files);
  if (newFiles.length === 0) return;

  fileInput.disabled = true;

  for (var i = 0; i < newFiles.length; i++) {
    var f = newFiles[i];
    var isZip = f.name.toLowerCase().endsWith('.zip');

    if (isZip) {
      // ZIP: показать временную строку, распаковать, убрать
      var zipEntry = { name: f.name, lastModified: f.lastModified, size: f.size, status: '⏳ распаковка...' };
      fileQueue.push(zipEntry);
      var zipIdx = fileQueue.length - 1;
      renderTable();

      try {
        var zipResp = await new Promise(function(resolve, reject) {
          var xhr = new XMLHttpRequest();
          xhr.open('POST', UNZIP_URL);
          xhr.responseType = 'json';
          xhr.onload = function() { resolve(xhr.response); };
          xhr.onerror = function() { reject(new Error('Сеть')); };
          xhr.ontimeout = function() { reject(new Error('Таймаут')); };
          xhr.timeout = 60000;
          xhr.send(f);
        });
        var zipData = zipResp;
        if (!zipData.ok || !zipData.files) throw new Error('unzip failed');

        // Убрать строку ZIP из таблицы
        fileQueue.splice(zipIdx, 1);
        renderTable();

        // Добавить файлы из архива, пропуская дубликаты
        for (var zi = 0; zi < zipData.files.length; zi++) {
          var zf = zipData.files[zi];
          if (zf.error) continue; // пропускаем ошибки

          // Проверить дубликат по имени
          var dup = -1;
          for (var dj = 0; dj < fileQueue.length; dj++) {
            if (fileQueue[dj].name === zf.filename) { dup = dj; break; }
          }
          if (dup >= 0) continue; // уже есть — не добавляем

          var zEntry = {
            name: zf.filename, size: zf.size,
            doc_id: zf.doc_id, uploaded: true,
            status: '⏳ парсинг...'
          };
          fileQueue.push(zEntry);
          var zIdx = fileQueue.length - 1;
          if (!contractId && zf.contract_id) contractId = zf.contract_id;
          renderTable();

          // Авто-парсинг: VM Python парсит ВСЁ
          var zpr = zf.parsed;
          if (zpr && zpr.status === 'parsed') {
            fileQueue[zIdx].parsed = true;
            fileQueue[zIdx].status = '<span class="status-ok">✓ ' + zpr.element_count + ' эл.</span>';
          } else if (zpr && zpr.status === 'error') {
            fileQueue[zIdx].status = '<span class="status-err">✗ ' + (zpr.error || 'ошибка парсинга') + '</span>';
          } else {
            fileQueue[zIdx].status = '<span class="status-err">✗ Неизвестная ошибка</span>';
          }
          renderTable();
        }
      } catch(ze) {
        fileQueue[zipIdx].status = '<span class="status-err">✗ ZIP: ' + ze.message + '</span>';
        renderTable();
      }
      continue; // ZIP обработан, переходим к следующему файлу
    }

    // Обычный файл (не ZIP)
    var entry = { name: f.name, lastModified: f.lastModified, size: f.size, file: f, status: '↑ 0%' };
    var existingIdx = -1;
    for (var j = 0; j < fileQueue.length; j++) {
      if (fileQueue[j].name === f.name) { existingIdx = j; break; }
    }
    var rowIdx;
    if (existingIdx >= 0) {
      fileQueue[existingIdx] = entry;
      rowIdx = existingIdx;
    } else {
      fileQueue.push(entry);
      rowIdx = fileQueue.length - 1;
    }
    renderTable();

    try {
      var resp = await uploadFile(f, function(pct) {
        fileQueue[rowIdx].status = '↑ ' + pct + '%';
        renderTable();
      });
      // Python API returns lowercase keys (doc_id, contract_id, parsed)
      if (resp && resp.contract_id) contractId = resp.contract_id;
      fileQueue[rowIdx].doc_id = resp.doc_id;
      fileQueue[rowIdx].status = '<span class="status-ok">✓</span>';
      fileQueue[rowIdx].uploaded = true;

      // Авто-парсинг: VM Python парсит ВСЁ (PDF + DOCX + DOC)
      var t0 = Date.now();
      var pr = resp.parsed;
      if (pr && pr.status === 'parsed') {
        var elapsed = ((Date.now() - t0) / 1000).toFixed(1);
        fileQueue[rowIdx].parsed = true;
        fileQueue[rowIdx].parseInfo = pr;
        fileQueue[rowIdx].status = '<span class="status-ok">✓ ' + pr.element_count + ' эл. (' + elapsed + 'с)</span>';
      } else if (pr && pr.status === 'error') {
        fileQueue[rowIdx].status = '<span class="status-err">✗ ' + (pr.error || 'ошибка парсинга') + '</span>';
        fileQueue[rowIdx].parseInfo = pr;
      } else {
        fileQueue[rowIdx].status = '<span class="status-err">✗ Неизвестная ошибка</span>';
      }
    } catch(err) {
      fileQueue[rowIdx].status = '<span class="status-err">✗ ' + err.message + '</span>';
    }
    renderTable();
  }

  await refreshSupps();

  fileInput.value = '';
  fileInput.disabled = false;
  // Показать кнопки после авто-парсинга
  var llmBtn = document.getElementById('llmBtn');
  llmBtn.style.display = 'flex';
  llmBtn.disabled = false;
  showClassifyBtn();
  lucide.createIcons();
});

// ── Классификация ──────────────────────────────────────────
function showClassifyBtn() {
  var btn = document.getElementById('classifyBtn');
  if (!btn) {
    btn = document.createElement('button');
    btn.id = 'classifyBtn';
    btn.className = 'btn btn-primary';
    btn.style.cssText = 'width:100%;justify-content:center;margin-top:8px;background:var(--brand-primary);border-color:var(--brand-primary);';
    btn.innerHTML = '<i data-lucide="tags" style="width:16px;height:16px;"></i> Классифицировать';
    btn.addEventListener('click', runClassify);
    document.getElementById('llmBtn').parentNode.insertBefore(btn, document.getElementById('llmBtn'));
  }
  btn.style.display = 'flex';
  btn.disabled = false;
}

async function runClassify() {
  var btn = document.getElementById('classifyBtn');
  btn.disabled = true;
  btn.innerHTML = '<span class="spinner"></span> Классификация...';

  try {
    var resp = await fetch(VM_API + '/api/classify-batch', {
      method: 'POST',
      headers: {'Content-Type': 'application/json'},
      body: JSON.stringify({batch_id: batchId})
    });
    var data = await resp.json();
    if (data.ok) {
      btn.innerHTML = '✓ ' + data.done + '/' + data.total + ' классифицировано';
      loadGroups();
    } else {
      btn.innerHTML = '✗ ' + (data.error || 'ошибка');
      btn.disabled = false;
    }
  } catch(e) {
    btn.innerHTML = '✗ ' + e.message;
    btn.disabled = false;
  }
}

async function loadGroups() {
  var resp = await fetch(VM_API + '/api/groups?batch=' + batchId);
  var data = await resp.json();
  if (!data.ok || !data.groups) return;

  var diffBody = document.getElementById('diffBody');
  var diffCard = document.getElementById('diffCard');
  diffCard.style.display = 'block';
  diffBody.innerHTML = '<div style="font-weight:600;margin-bottom:8px;">📋 Найдено групп: ' + data.groups.length + '</div>';

  data.groups.forEach(function(g, gi) {
    var isUnresolved = g.contract_number === '__unresolved__';
    var card = document.createElement('div');
    card.style.cssText = 'border:1px solid ' + (isUnresolved ? 'var(--destructive)' : 'var(--brand-gray)') + ';border-radius:6px;padding:10px;margin-bottom:8px;';
    card.innerHTML = '<div style="font-weight:600;margin-bottom:6px;">' +
      (isUnresolved ? '❓ Не распознано' : '📄 ' + (g.contract_number || 'Без номера') + ' — ' + (g.counterparty || 'контрагент не определён')) +
      '</div>' +
      '<div style="font-size:12px;">' +
      g.documents.map(function(d) {
        return '<div style="padding:2px 0;">' +
          '<span style="color:var(--muted);">[' + (d.doc_type || '?') + ']</span> ' +
          d.filename +
          (d.doc_date ? ' <span style="color:var(--muted);">' + d.doc_date + '</span>' : '') +
          '</div>';
      }).join('') +
      '</div>';
    if (!isUnresolved) {
      card.innerHTML += '<button class="btn" style="margin-top:6px;font-size:12px;height:28px;" onclick="runCompareForGroup(\'' + gi + '\')">▶ Сравнить</button>';
    }
    diffBody.appendChild(card);
  });
  lucide.createIcons();
}

window.runCompareForGroup = function(gi) {
  // TODO: run /process-v2 for the specific contract
  alert('Сравнение для группы ' + gi + ' — в разработке');
};

function uploadFile(file, onProgress) {
  return new Promise(function(resolve, reject) {
    // .doc → конвертация в docx
    var isDoc = file.name.toLowerCase().endsWith('.doc') && !file.name.toLowerCase().endsWith('.docx');
    var uploadFile = file;
    var uploadName = file.name;

    function doUpload() {
      var xhr = new XMLHttpRequest();
      var fd = new FormData();
      fd.append('files', uploadFile, uploadName);
      if (contractId) fd.append('contract_id', contractId);
      fd.append('batch_id', batchId);
      xhr.open('POST', UPLOAD_URL);
      xhr.upload.onprogress = function(e) {
        if (e.lengthComputable && onProgress) onProgress(Math.round(e.loaded / e.total * 100));
      };
      xhr.onload = function() {
        try {
          var r = JSON.parse(xhr.responseText);
          if (r.ok) resolve(r);
          else reject(new Error(r.error || 'Неизвестная ошибка'));
        } catch(e) { reject(new Error('Некорректный ответ')); }
      };
      xhr.onerror = function() { reject(new Error('Сеть')); };
      xhr.ontimeout = function() { reject(new Error('Таймаут')); };
      xhr.timeout = 180000;
      xhr.send(fd);
    }

    if (isDoc) {
      var xhr = new XMLHttpRequest();
      xhr.open('POST', CONVERT_URL);
      xhr.responseType = 'blob';
      xhr.onload = function() {
        if (xhr.status === 200 && xhr.response.size > 100) {
          uploadFile = xhr.response;
          uploadName = file.name.replace(/\.doc$/i, '.docx');
          doUpload();
        } else {
          reject(new Error('Конвертация .doc'));
        }
      };
      xhr.onerror = function() { reject(new Error('Конвертер')); };
      xhr.send(file);
    } else {
      doUpload();
    }
  });
}

// ── LLM: Сравнить (Event Sourcing) ────────────────────────
document.getElementById('llmBtn').addEventListener('click', function() {
  if (!contractId) return;
  var btn = this;
  btn.disabled = true;
  btn.innerHTML = '<span class="spinner"></span> Сравнение...';

  var diffCard = document.getElementById('diffCard');
  var diffBody = document.getElementById('diffBody');
  var diffStatus = document.getElementById('diffStatus');
  diffCard.style.display = 'block';
  diffBody.innerHTML = '';
  diffStatus.textContent = '⏳ 0.0с';

  var llmStart = Date.now();
  var timerInterval = setInterval(function() {
    diffStatus.textContent = '⏳ ' + ((Date.now() - llmStart) / 1000).toFixed(1) + 'с';
  }, 200);

  var order = fileQueue.map(function(f) { return f.supp_id; }).filter(Boolean).join(',');
  var es = new EventSource('https://contracts.kube5s.ru/process-v2?contract_id=' + contractId + (order ? '&order=' + encodeURIComponent(order) : ''));
  var sections = {}; // supplement_id → DOM element

  es.onmessage = function(e) {
    var d = JSON.parse(e.data);

    if (d.type === 'extract_start') {
      var sec = document.createElement('div');
      sec.style.cssText = 'margin-top:8px;border:1px solid var(--brand-gray);border-radius:6px;overflow:hidden;';
      sec.innerHTML = '<div class="diff-section-header" style="padding:8px 12px;background:var(--brand-grey-light);cursor:pointer;font-size:13px;font-weight:600;">⏳ ' + d.filename + '</div><div class="diff-section-body" style="display:none;padding:8px 12px;"></div>';
      sec.querySelector('.diff-section-header').addEventListener('click', function() {
        var body = sec.querySelector('.diff-section-body');
        body.style.display = body.style.display === 'none' ? 'block' : 'none';
      });
      diffBody.appendChild(sec);
      sections[d.supplement_id] = sec;
    }
    else if (d.type === 'llm_done') {
      var sec = sections[d.supplement_id];
      if (sec) {
        sec.querySelector('.diff-section-header').innerHTML = '✓ ' + d.filename + ' — ' + d.ops_count + ' оп., ' + d.mode + ' (' + d.time_s + 'с)';
        sec.querySelector('.diff-section-header').style.color = 'var(--green)';
      }
    }
    else if (d.type === 'applied') {
      var sec = sections[d.supplement_id];
      if (sec && d.ops && d.ops.length > 0) {
        var s = d.summary || {};
        var body = sec.querySelector('.diff-section-body');
        var html = '<div style="font-size:12px;margin-bottom:6px;">+' + (s.added||0) + ' ~' + (s.updated||0) + ' -' + (s.deleted||0) + ' ?' + (s.unresolved||0) + '</div>';
        html += '<div class="table-wrap"><table style="font-size:11px;"><thead><tr><th>Действие</th><th>Услуга</th><th>Цена</th><th>Кол-во</th><th>Сумма</th><th>Дата</th></tr></thead><tbody>';
        d.ops.forEach(function(op) {
          var action = op.action;
          var cls = action === 'ADD' ? 'diff-added' : action === 'DELETE' ? 'diff-deleted' : action === 'UPDATE' ? 'diff-changed' : '';
          var nr = op.new_row || {};
          var name = nr.name || '';
          var price = nr.price != null ? nr.price : '';
          var qty = nr.qty != null ? nr.qty : '';
          var sum = nr.sum != null ? nr.sum : '';
          var ds = nr.date_start || '';
          html += '<tr class="' + cls + '"><td>' + action + '</td><td>' + name + '</td><td class="num-cell">' + price + '</td><td class="num-cell">' + qty + '</td><td class="num-cell">' + sum + '</td><td>' + ds + '</td></tr>';
        });
        html += '</tbody></table></div>';
        body.innerHTML = html;
        body.style.display = 'block';
      }
    }
    else if (d.type === 'extract_error' || d.type === 'apply_error') {
      diffBody.innerHTML += '<div style="font-size:12px;color:var(--destructive);">✗ ' + d.filename + ': ' + d.error + '</div>';
    }
    else if (d.type === 'done') {
      clearInterval(timerInterval);
      es.close();
      diffStatus.textContent = '✓ ' + d.total_time_s + 'с';
      btn.innerHTML = '<i data-lucide="check" style="width:16px;height:16px;"></i> ✓ Готово';
      if (d.total_unresolved > 0) {
        diffBody.innerHTML += '<div style="margin-top:8px;color:#eab308;">⚠ ' + d.total_unresolved + ' неразрешённых строк — <a href="/resolve.cfm?contract_id=' + contractId + '">разобрать</a></div>';
      }
      document.getElementById('chatCard').style.display = 'block';
      lucide.createIcons();
    }
    else if (d.type === 'error') {
      clearInterval(timerInterval);
      es.close();
      diffBody.innerHTML += '<div style="color:var(--destructive);margin-top:8px;">✗ ' + d.message + '</div>';
      btn.innerHTML = '<i data-lucide="scale" style="width:16px;height:16px;"></i> Сравнить';
      btn.disabled = false;
    }
  };

  es.onerror = function() {
    clearInterval(timerInterval);
    es.close();
    if (diffBody.innerHTML === '') {
      diffBody.innerHTML = '<div style="color:var(--destructive);">✗ Ошибка соединения</div>';
    }
    btn.innerHTML = '<i data-lucide="scale" style="width:16px;height:16px;"></i> Сравнить';
    btn.disabled = false;
    lucide.createIcons();
  };
});

// ── Обновить supplement_id/type для radio ──────────────────
async function refreshSupps() {
  if (!contractId) { console.log('refreshSupps: no contractId'); return; }
  try {
    var resp = await fetch(VM_API + '/api/supplements?contract_id=' + contractId);
    var data = await resp.json();
    console.log('refreshSupps: data=', data);
    if (data.ok && data.supplements) {
      data.supplements.forEach(function(supp) {
        console.log('refreshSupps: supp=', supp);
        for (var i = 0; i < fileQueue.length; i++) {
          if (fileQueue[i].doc_id === supp.document_id) {
            fileQueue[i].supp_id = supp.id;
            fileQueue[i].supp_type = supp.type;
          }
        }
      });
      renderTable();
    }
  } catch(e) { console.log('refreshSupps error:', e); }
}

// ── Чат ──────────────────────────────────────────────────────
document.getElementById('chatSend').addEventListener('click', function() {
  var input = document.getElementById('chatInput');
  var q = input.value.trim();
  if (!q || !contractId) return;
  var msgs = document.getElementById('chatMessages');
  msgs.innerHTML += '<div style="color:var(--brand-primary);margin-top:4px;"><strong>Вы:</strong> ' + q + '</div>';
  input.value = '';
  input.disabled = true;
  document.getElementById('chatSend').disabled = true;
  msgs.innerHTML += '<div style="color:var(--muted);margin-top:2px;">⏳ Думаю...</div>';

  var fd = new FormData();
  fd.append('question', q);
  fetch('/chat.cfm?contract_id=' + contractId, { method: 'POST', body: fd })
    .then(function(r) { return r.json(); })
    .then(function(d) {
      msgs.lastChild.remove();
      msgs.innerHTML += '<div style="margin-top:2px;"><strong>Ответ:</strong> ' + (d.OK ? d.ANSWER : (d.ERROR || '—')) + '</div>';
      input.disabled = false;
      document.getElementById('chatSend').disabled = false;
      input.focus();
    }).catch(function() {
      msgs.lastChild.remove();
      msgs.innerHTML += '<div style="color:var(--destructive);margin-top:2px;">Ошибка сети</div>';
      input.disabled = false;
      document.getElementById('chatSend').disabled = false;
    });
});
document.getElementById('chatInput').addEventListener('keydown', function(e) {
  if (e.key === 'Enter') document.getElementById('chatSend').click();
});

function closeModal(e) {
  if (e && e.target !== document.getElementById('modalOverlay')) return;
  document.querySelector('.modal').classList.remove('wide');
  document.getElementById('modalOverlay').classList.remove('open');
}

async function showText(i) {
  var f = fileQueue[i];
  var docId = f.doc_id;
  document.getElementById('modalTitle').textContent = f.name;
  document.getElementById('modalBody').innerHTML = '<span style="color:var(--muted);">Загрузка...</span>';
  var modal = document.querySelector('.modal');
  modal.classList.add('wide');
  document.getElementById('modalOverlay').classList.add('open');

  var leftHtml = '<span style="color:var(--muted);">Загрузка...</span>';
  var rightHtml = '';

  if (docId) {
    try {
      var qResp = await fetch(VM_API + '/api/documents/' + docId);
      var qData = await qResp.json();
      var elements = [];
      if (qData.ok && qData.elements_json) {
        var ej = qData.elements_json;
        if (typeof ej === 'object' && ej.Value) ej = ej.Value;
        if (typeof ej === 'string') elements = JSON.parse(ej);
        else elements = ej;
      }

      // Общий textify для обеих панелей
      var textLines = [];
      elements.forEach(function(el) {
        var etype = el.type || el.TYPE || '?';
        if (etype === 'paragraph') {
          textLines.push(el.text || el.TEXT || '');
        } else if (etype === 'table') {
          var rows = el.rows || el.ROWS || [];
          if (rows.length > 0) {
            var ncols = (rows[0]||[]).length;
            textLines.push('--- Таблица ' + rows.length + '×' + ncols + ' ---');
            rows.forEach(function(row) {
              var cells = (row||[]).map(function(c){ return String(c||'').replace(/\n/g,' ').replace(/\|/g,'\\|'); });
              textLines.push('| ' + cells.join(' | ') + ' |');
            });
            textLines.push('');
          }
        }
      });
      var textify = textLines.join('\n').replace(/</g,'&lt;').replace(/>/g,'&gt;');

      // Левая: сырой текст (textify)
      leftHtml = '<pre>' + textify + '</pre>';

      // Правая: статистика + textify
      rightHtml += '<div class="kv"><span class="k">Размер</span><span class="v">' + formatSize(f.size) + '</span></div>';
      rightHtml += '<div class="kv"><span class="k">Изменён</span><span class="v">' + formatDate(f.lastModified) + '</span></div>';
      if (f.parseInfo) {
        var d = f.parseInfo;
        rightHtml += '<div class="kv"><span class="k">Элементов</span><span class="v">' + (d.element_count||0) + '</span></div>';
        if (d.error) rightHtml += '<div style="margin-top:8px;color:var(--destructive);">' + d.error + '</div>';
      }
      rightHtml += '<div style="margin-top:10px;font-weight:600;font-size:12px;">Все элементы:</div>';
      rightHtml += '<pre>' + textify + '</pre>';
      if (f.supp_id) {
        rightHtml += '<div class="kv"><span class="k">Тип ДС</span><span class="v">' + (f.supp_type || '—') + '</span></div>';
      }
    } catch(e) {
      leftHtml = '<span style="color:var(--destructive);">Ошибка</span>';
    }
  } else {
    leftHtml = '<span style="color:var(--muted);">(ещё не загружен)</span>';
  }

  var html = '<div class="text-panes">' +
    '<div class="text-pane"><div class="pane-title">Сырой текст</div>' + leftHtml + '</div>' +
    '<div class="text-pane"><div class="pane-title">Распарсено</div>' + rightHtml + '</div>' +
    '</div>';
  document.getElementById('modalBody').innerHTML = html;
}

window.closeModal = closeModal;
window.showText = showText;

// ── Промпт ───────────────────────────────────────────────────
var promptEditor = document.getElementById('promptEditor');
// ── Промпты (версионные) ─────────────────────────────────────
var promptRole = 'diff'; // текущая выбранная роль
var promptEditor = document.getElementById('promptEditor');
var promptStatus = document.getElementById('promptStatus');
var promptHistory = document.getElementById('promptHistory');
var promptModalOverlay = document.getElementById('promptModalOverlay');
var promptModalTitle = document.getElementById('promptModalTitle');
var promptName = document.getElementById('promptName');
var promptNotes = document.getElementById('promptNotes');
var activePromptId = {extract: '', diff: ''};

function openPromptModal(role) {
  promptRole = role;
  promptModalTitle.textContent = 'Промпт: ' + (role === 'extract' ? 'Извлечение' : 'Сравнение');
  document.getElementById('promptTabExtract').style.background = role === 'extract' ? 'var(--brand-primary)' : '';
  document.getElementById('promptTabExtract').style.color = role === 'extract' ? '#fff' : '';
  document.getElementById('promptTabDiff').style.background = role === 'diff' ? 'var(--brand-primary)' : '';
  document.getElementById('promptTabDiff').style.color = role === 'diff' ? '#fff' : '';
  promptStatus.textContent = '';
  promptName.value = '';
  promptNotes.value = '';
  loadPrompt(role);
  promptModalOverlay.classList.add('open');
}

function closePromptModal(e) {
  if (e && e.target !== promptModalOverlay) return;
  promptModalOverlay.classList.remove('open');
}

function loadPrompt(role) {
  fetch('/prompt.cfm?action=get_active&role=' + role)
    .then(function(r) { return r.json(); })
    .then(function(d) {
      if (d.OK) {
        promptEditor.value = d.BODY || '';
        activePromptId[role] = d.ID || '';
        loadHistory(role);
      }
    })
    .catch(function(e) { console.error('loadPrompt:', e); });
}

function loadHistory(role) {
  fetch('/prompt.cfm?action=list&role=' + role)
    .then(function(r) { return r.json(); })
    .then(function(d) {
      if (!d.OK || !d.VERSIONS || !d.VERSIONS.length) {
        promptHistory.innerHTML = '<div style="color:var(--muted);">нет версий</div>';
        return;
      }
      promptHistory.innerHTML = d.VERSIONS.map(function(v) {
        var isActive = v.IS_ACTIVE ? '✓ ' : '';
        var style = v.IS_ACTIVE ? 'font-weight:600;' : '';
        return '<div style="display:flex;align-items:center;padding:4px 0;border-bottom:1px solid var(--brand-gray);font-size:11px;' + style + '">'
          + '<span style="flex:1;">' + isActive + escHtml(v.NAME) + ' <span style="color:var(--muted);">' + fmtDate(v.CREATED_AT) + '</span></span>'
          + (!v.IS_ACTIVE ? '<button class="arrow-btn" onclick="activatePrompt(\'' + v.ID + '\')" title="Активировать" style="font-size:14px;">←</button>' : '')
          + (!v.IS_ACTIVE ? '<button class="arrow-btn" onclick="deletePrompt(\'' + v.ID + '\')" title="Удалить" style="font-size:14px;">✕</button>' : '')
          + '</div>';
      }).join('');
    })
    .catch(function(e) { console.error('loadHistory:', e); });
}

function escHtml(s) { var d = document.createElement('div'); d.textContent = s; return d.innerHTML; }
function fmtDate(d) { if (!d) return ''; return d.replace('T', ' ').substring(0, 16); }

function activatePrompt(id) {
  fetch('/prompt.cfm?action=activate', {
    method: 'POST',
    headers: {'Content-Type': 'application/json'},
    body: JSON.stringify({id: id})
  })
    .then(function(r) { return r.json(); })
    .then(function(d) {
      if (d.OK) { loadPrompt(promptRole); promptStatus.textContent = '✓ активирован'; }
      else { promptStatus.textContent = '✕ ' + (d.ERROR || 'ошибка'); }
    });
}

function deletePrompt(id) {
  if (!confirm('Удалить эту версию промпта?')) return;
  fetch('/prompt.cfm?action=delete', {
    method: 'POST',
    headers: {'Content-Type': 'application/json'},
    body: JSON.stringify({id: id})
  })
    .then(function(r) { return r.json(); })
    .then(function(d) {
      if (d.OK) { loadHistory(promptRole); promptStatus.textContent = '✓ удалено'; }
      else { promptStatus.textContent = '✕ ' + (d.ERROR || 'ошибка'); }
    });
}

document.getElementById('promptSave').addEventListener('click', function() {
  var body = promptEditor.value.trim();
  if (!body) { promptStatus.textContent = '✕ тело промпта пустое'; return; }
  var name = promptName.value.trim() || ('v' + new Date().toISOString().replace(/[:.]/g,'-').substring(0,16));
  fetch('/prompt.cfm?action=save', {
    method: 'POST',
    headers: {'Content-Type': 'application/json'},
    body: JSON.stringify({
      role: promptRole, name: name, body: body,
      parent_id: activePromptId[promptRole] || '',
      notes: promptNotes.value.trim(), is_active: true
    })
  })
    .then(function(r) { return r.json(); })
    .then(function(d) {
      if (d.OK) {
        promptStatus.textContent = '✓ сохранено (новая версия)';
        promptName.value = ''; promptNotes.value = '';
        loadPrompt(promptRole);
      } else {
        promptStatus.textContent = '✕ ' + (d.ERROR || 'ошибка');
      }
    });
});

document.getElementById('promptTabExtract').addEventListener('click', function() { openPromptModal('extract'); });
document.getElementById('promptTabDiff').addEventListener('click', function() { openPromptModal('diff'); });
document.getElementById('promptBtnExtract').addEventListener('click', function() { openPromptModal('extract'); });
document.getElementById('promptBtnDiff').addEventListener('click', function() { openPromptModal('diff'); });
lucide.createIcons();