/** Awareness panel: memorizer state, sensor readings.
 *  Node detail panel: per-node model, tokens, progress, last event.
 */

import { esc, truncate } from './util.js';

let _sensorReadings = {};

// --- Node state tracker ---
const _nodeState = {};  // { nodeName: { model, tokens, maxTokens, fillPct, lastEvent, lastDetail, status, toolCalls, startedAt } }

// Normalize node names to avoid duplicates (pa_v1→pa, expert_eras→eras, etc.)
function _normName(name) {
  return name.replace('_v1', '').replace('_v2', '').replace('expert_', '');
}

function _getNode(name) {
  const key = _normName(name);
  if (!_nodeState[key]) {
    _nodeState[key] = {
      model: '', tokens: 0, maxTokens: 0, fillPct: 0,
      lastEvent: '', lastDetail: '', status: 'idle',
      toolCalls: 0, lastTool: '',
    };
  }
  return _nodeState[key];
}

export function updateNodeFromHud(node, event, data) {
  const n = _getNode(node);

  if (event === 'context') {
    if (data.model) n.model = data.model.replace('google/', '').replace('anthropic/', '');
    if (data.tokens !== undefined) n.tokens = data.tokens;
    if (data.max_tokens !== undefined) n.maxTokens = data.max_tokens;
    if (data.fill_pct !== undefined) n.fillPct = data.fill_pct;
  }

  if (event === 'thinking') {
    n.status = 'thinking';
    n.lastEvent = 'thinking';
    n.lastDetail = data.detail || '';
  } else if (event === 'perceived') {
    n.status = 'done';
    n.lastEvent = 'perceived';
    const a = data.analysis || {};
    n.lastDetail = `${a.intent || '?'}/${a.language || '?'}/${a.tone || '?'}`;
  } else if (event === 'decided' || event === 'routed') {
    n.status = 'done';
    n.lastEvent = event;
    n.lastDetail = data.goal || data.instruction || data.job || '';
  } else if (event === 'tool_call') {
    n.status = 'tool';
    n.lastEvent = 'tool_call';
    n.lastTool = data.tool || '';
    n.lastDetail = data.tool || '';
    n.toolCalls++;
  } else if (event === 'tool_result') {
    n.lastEvent = 'tool_result';
    n.lastDetail = truncate(data.output || '', 50);
  } else if (event === 'streaming') {
    n.status = 'streaming';
    n.lastEvent = 'streaming';
  } else if (event === 'done') {
    n.status = 'done';
    n.lastEvent = 'done';
  } else if (event === 'updated') {
    n.status = 'done';
    n.lastEvent = 'updated';
  } else if (event === 'planned') {
    n.status = 'planned';
    n.lastEvent = 'planned';
    n.lastDetail = `${data.tools || 0} tools`;
  } else if (event === 'interpreted') {
    n.status = 'done';
    n.lastEvent = 'interpreted';
    n.lastDetail = truncate(data.summary || '', 50);
  }

  renderNodes();
}

// Fixed pipeline order — no re-sorting
// Fixed pipeline order using normalized names
const PIPELINE_ORDER = ['input', 'pa', 'director', 'eras', 'plankiste',
  'thinker', 'interpreter', 'output', 'memorizer', 'ui', 'sensor'];

function renderNodes() {
  const el = document.getElementById('node-metrics');
  if (!el) return;

  const entries = Object.entries(_nodeState)
    .filter(([name]) => name !== 'runtime' && name !== 'frame_engine');

  const sorted = entries.sort((a, b) => {
    const ia = PIPELINE_ORDER.indexOf(a[0]);
    const ib = PIPELINE_ORDER.indexOf(b[0]);
    return (ia === -1 ? 99 : ia) - (ib === -1 ? 99 : ib);
  });

  let html = '';
  for (const [name, n] of sorted) {
    const statusClass = n.status === 'thinking' || n.status === 'tool' ? 'nm-active'
      : n.status === 'streaming' ? 'nm-streaming' : '';
    const shortName = name.replace('_v1', '').replace('_v2', '').replace('expert_', '');
    const modelShort = n.model ? n.model.split('/').pop().replace('-001', '').replace('-4.5', '4.5') : '';
    const tokenStr = n.maxTokens ? `${n.tokens}/${n.maxTokens}t` : '';
    const fillW = n.fillPct || 0;
    const detail = n.lastDetail ? truncate(n.lastDetail, 45) : '';
    const toolStr = n.toolCalls > 0 ? ` [${n.toolCalls} calls]` : '';

    html += `<div class="node-card ${statusClass}">
      <div class="nc-header">
        <span class="nc-name">${esc(shortName)}</span>
        <span class="nc-model">${esc(modelShort)}</span>
        <span class="nc-tokens">${esc(tokenStr)}</span>
      </div>
      <div class="nc-bar"><div class="nc-fill" style="width:${fillW}%"></div></div>
      <div class="nc-status">
        <span class="nc-event">${esc(n.lastEvent)}</span>
        <span class="nc-detail">${esc(detail)}${esc(toolStr)}</span>
      </div>
    </div>`;
  }
  el.innerHTML = html;
}

export function initNodesFromGraph(graphData) {
  // Populate node cards from graph definition (before any messages)
  const nodes = graphData.nodes || {};
  const details = graphData.node_details || {};
  for (const [role, impl] of Object.entries(nodes)) {
    const n = _getNode(role);
    const d = details[role];
    if (d) {
      n.model = (d.model || '').replace('google/', '').replace('anthropic/', '');
      n.maxTokens = d.max_tokens || 0;
    }
    n.lastEvent = 'idle';
    n.status = 'idle';
  }
  renderNodes();
}

export function clearNodes() {
  for (const key of Object.keys(_nodeState)) delete _nodeState[key];
  const el = document.getElementById('node-metrics');
  if (el) el.innerHTML = '';
}

// Keep old meter function for backward compat (called from ws.js)
export function updateMeter(node, tokens, maxTokens, fillPct) {
  const n = _getNode(node);
  n.tokens = tokens;
  n.maxTokens = maxTokens;
  n.fillPct = fillPct;
  renderNodes();
}

// --- Awareness: memorizer state ---

export function updateAwarenessState(state) {
  const body = document.getElementById('aw-state-body');
  if (!body) return;
  const display = [
    ['user', state.user_name],
    ['mood', state.user_mood],
    ['topic', state.topic],
    ['lang', state.language],
    ['style', state.style_hint],
    ['situation', state.situation],
  ];
  const facts = state.facts || [];
  const history = state.topic_history || [];

  let html = display.map(([k, v]) =>
    `<div class="aw-row"><span class="aw-key">${esc(k)}</span><span class="aw-val">${esc(v || 'null')}</span></div>`
  ).join('');

  if (facts.length) {
    html += '<div class="aw-row"><span class="aw-key">facts</span><span class="aw-val">'
      + facts.map(f => esc(truncate(f, 40))).join('<br>') + '</span></div>';
  }
  if (history.length) {
    html += '<div class="aw-row"><span class="aw-key">topics</span><span class="aw-val">'
      + history.map(t => esc(truncate(t, 25))).join(', ') + '</span></div>';
  }
  body.innerHTML = html;
}

// --- Awareness: sensor readings ---

export function updateAwarenessSensors(tick, deltas) {
  const body = document.getElementById('aw-sensor-body');
  if (!body) return;

  for (const [k, v] of Object.entries(deltas)) {
    _sensorReadings[k] = v;
  }
  let html = `<div class="aw-row"><span class="aw-key">tick</span><span class="aw-val">#${tick}</span></div>`;
  for (const [k, v] of Object.entries(_sensorReadings)) {
    html += `<div class="aw-row"><span class="aw-key">${esc(k)}</span><span class="aw-val">${esc(String(v))}</span></div>`;
  }
  body.innerHTML = html;
}