UPDATE "automations"
SET "code" = $CODE$
const RENTAL_FORM_ID = 15;
const MACHINE_FIELD_CODE = 'field_3';
const RENTAL_STATUS_NAME = 'В аренде';

const task = ctx.triggerData?.task;
if (!task || task.formId !== RENTAL_FORM_ID) {
  ctx.result = { allow: true };
  return;
}

const statuses = await ctx.forms.getStatuses(RENTAL_FORM_ID);
const rentalStatus = statuses.find(s => s.name.trim().toLowerCase() === RENTAL_STATUS_NAME.toLowerCase());
if (!rentalStatus) {
  ctx.log('Статус "В аренде" не найден');
  ctx.result = { allow: true };
  return;
}

const formFields = await ctx.forms.getFields(RENTAL_FORM_ID);
const machineField = formFields.find(f => f.code === MACHINE_FIELD_CODE);
if (!machineField) {
  ctx.log('Поле Машина не найдено');
  ctx.result = { allow: true };
  return;
}

const machineValue = task.customFields?.[`customField_${machineField.id}`] ?? task.customFields?.[MACHINE_FIELD_CODE];
if (!machineValue) {
  ctx.result = { allow: true };
  return;
}

const machineTaskId = parseInt(machineValue, 10);
if (!machineTaskId) {
  ctx.result = { allow: true };
  return;
}

const machineTask = await ctx.tasks.get(machineTaskId);
const machineName = machineTask?.title || `Машина #${machineTaskId}`;

const existingTasks = await ctx.tasks.list(RENTAL_FORM_ID);
for (const t of existingTasks) {
  if (t.currentStatusId !== rentalStatus.id) continue;
  const values = await ctx.tasks.getFieldValues(t.id);
  const existingMachine = values.find(v => v.fieldId === machineField.id)?.value;
  if (String(existingMachine) === String(machineValue)) {
    const [assignees, author] = await Promise.all([
      ctx.tasks.getAssignees(t.id),
      t.createdBy ? ctx.users.get(t.createdBy) : null,
    ]);
    const assigneeNames = assignees.map(a =>
      `${a.user.firstName || ''} ${a.user.middleName || ''} ${a.user.lastName || ''}`.trim() || a.user.email
    ).join(', ') || 'не назначен';
    const authorName = author
      ? `${author.firstName || ''} ${author.middleName || ''} ${author.lastName || ''}`.trim() || author.email
      : 'неизвестен';

    ctx.result = {
      allow: false,
      error: `${machineName} уже в аренде. Арендатор: ${assigneeNames}. Автор аренды: ${authorName}. Активная аренда: #${t.id}`,
      activeRentalTaskId: t.id,
      assignedToName: assigneeNames,
    };
    return;
  }
}

ctx.result = { allow: true };
$CODE$,
    "updated_at" = now()
WHERE "organization_id" = 1 AND "name" = 'Контроль дублирования аренды машин';