// #/little-blue — the caretaker page: Little Blue's chat (reuses agent_chat) +
// a manual Actions panel. Actions are grouped into cards (Start/Stop of the same
// guest pair together); risky ones queue for owner approval.
import { el, mount, clear } from '../dom.js';
import { api } from '../api.js';
import { wireAgentChat } from '../components/agent_chat.js';

const BLUE_LABELS = {
  search: '🔍 looking', list_actions: '📋 checking what she can do', propose_action: '🔧 taking action'
};
const VERB = { start: 'Start', stop: 'Stop', shutdown: 'Shutdown', reboot: 'Reboot' };
const stripVerb = (l) => ((l || '').replace(/^(Start|Stop|Restart|Reboot|Shutdown)\s+/i, '').trim() || l);

function toast(host, msg, kind) {
  const t = el('div', { class: 'lb-toast' + (kind === 'err' ? ' err' : '') }, msg);
  host.appendChild(t);
  setTimeout(() => t.remove(), 4000);
}

function actionButton(a, panel, toastHost) {
  const verb = a.kind === 'guest_power' ? (VERB[a.op] || a.op) : 'Restart';
  const btn = el('button', {
    class: 'lb-act ' + (a.tier === 'risky' ? 'risky' : 'safe'),
    title: a.tier === 'risky' ? 'Needs your approval' : 'Runs immediately',
    onclick: async () => {
      btn.disabled = true;
      try {
        const r = await api.post(`/api/actions/${a.id}/run`);
        toast(toastHost, r.executed ? `Ran: ${a.label}` : `Queued for approval: ${a.label}`);
        renderActions(panel, toastHost);
      } catch (e) { toast(toastHost, 'Failed: ' + e.message, 'err'); btn.disabled = false; }
    }
  }, verb);
  return btn;
}

async function renderActions(panel, toastHost) {
  clear(panel);
  let actions = [], pending = [];
  try { ({ actions } = await api.get('/api/actions')); } catch { /* */ }
  try { ({ pending } = await api.get('/api/actions/pending')); } catch { /* */ }

  panel.appendChild(el('div', { class: 'lb-sec' }, 'Actions'));
  if (!actions.length) panel.appendChild(el('p', { class: 'muted' }, 'No actions configured yet.'));

  // Group guest power by guest (pairs Start/Stop); service restarts stand alone.
  const groups = new Map();
  for (const a of actions) {
    const key = a.kind === 'guest_power' ? `g:${a.node}:${a.vmid}` : `s:${a.id}`;
    if (!groups.has(key)) groups.set(key, { name: stripVerb(a.label), acts: [] });
    groups.get(key).acts.push(a);
  }
  if (actions.length) {
    const cards = el('div', { class: 'lb-cards' });
    for (const { name, acts } of groups.values()) {
      acts.sort((x, y) => (x.op === 'start' ? -1 : y.op === 'start' ? 1 : 0));
      cards.appendChild(el('div', { class: 'card lb-card' },
        el('div', { class: 'lb-card-title' }, name),
        el('div', { class: 'lb-btn-row' }, acts.map(a => actionButton(a, panel, toastHost)))));
    }
    panel.appendChild(cards);
  }

  if (pending.length) {
    panel.appendChild(el('div', { class: 'lb-sec' }, 'Awaiting approval'));
    const resolve = async (id, verb) => {
      try { await api.post(`/api/actions/pending/${id}/${verb}`); toast(toastHost, verb === 'approve' ? 'Approved' : 'Rejected'); renderActions(panel, toastHost); }
      catch (e) { toast(toastHost, 'Failed: ' + e.message, 'err'); }
    };
    const pcards = el('div', { class: 'lb-cards' });
    for (const p of pending) {
      pcards.appendChild(el('div', { class: 'card lb-pending-card' },
        el('div', { class: 'lb-card-title' }, p.action_id),
        el('div', { class: 'lb-btn-row' },
          el('button', { class: 'lb-act safe', onclick: () => resolve(p.id, 'approve') }, 'Approve'),
          el('button', { class: 'lb-act risky', onclick: () => resolve(p.id, 'reject') }, 'Reject'))));
    }
    panel.appendChild(pcards);
  }
}

export async function render(main) {
  const log = el('div', { class: 'rail-log lb-log' });
  const input = el('textarea', { class: 'rail-input', rows: 1, placeholder: 'Tell Little Blue what’s wrong…' });
  const sendBtn = el('button', { class: 'rail-send', type: 'button', title: 'Send', 'aria-label': 'Send' }, '➤');
  const actionsPanel = el('div', { class: 'lb-actions' });
  const toastHost = el('div', { class: 'lb-toasts' });
  mount(main,
    el('h1', { class: 'view-h1' }, '◆ Little Blue — Caretaker'),
    el('p', { class: 'view-sub' }, 'She keeps the lab alive. Safe fixes run on her word; risky ones wait for yours.'),
    toastHost,
    el('div', { class: 'lb-grid' },
      el('div', { class: 'lb-chat' }, log, el('div', { class: 'rail-inputwrap' }, input, sendBtn)),
      actionsPanel));
  const chat = wireAgentChat({
    logEl: log, inputEl: input, sendBtnEl: sendBtn,
    historyUrl: '/api/little-blue', turnUrl: '/api/little-blue/turn',
    agentName: 'Little Blue', showDrafts: false, toolLabels: BLUE_LABELS
  });
  await chat.load();
  await renderActions(actionsPanel, toastHost);
}