/** Dashboard: workspace controls rendering (buttons, tables, labels, displays, machines). */

import { esc } from './util.js';
import { addTrace } from './trace.js';
import { setDashboard } from './chat.js';

let _ws = null;

export function setWs(ws) { _ws = ws; }

export function dockControls(controls) {
  setDashboard(controls);  // S3*: remember what's rendered
  const body = document.getElementById('workspace-body');
  if (!body) return;
  body.innerHTML = '';
  const container = document.createElement('div');
  container.className = 'controls-container';

  for (const ctrl of controls) {
    if (ctrl.type === 'button') {
      const btn = document.createElement('button');
      btn.className = 'control-btn';
      btn.textContent = ctrl.label;
      btn.onclick = () => {
        if (_ws && _ws.readyState === 1) {
          _ws.send(JSON.stringify({ type: 'action', action: ctrl.action, data: ctrl.payload || ctrl.data || {} }));
          addTrace('runtime', 'action', ctrl.action);
        }
      };
      container.appendChild(btn);
    } else if (ctrl.type === 'table') {
      const table = document.createElement('table');
      table.className = 'control-table';
      if (ctrl.columns) {
        const thead = document.createElement('tr');
        for (const col of ctrl.columns) {
          const th = document.createElement('th');
          th.textContent = col;
          thead.appendChild(th);
        }
        table.appendChild(thead);
      }
      for (const row of (ctrl.data || [])) {
        const tr = document.createElement('tr');
        if (Array.isArray(row)) {
          for (const cell of row) {
            const td = document.createElement('td'); td.textContent = cell; tr.appendChild(td);
          }
        } else if (typeof row === 'object') {
          for (const col of (ctrl.columns || Object.keys(row))) {
            const td = document.createElement('td'); td.textContent = row[col] ?? ''; tr.appendChild(td);
          }
        }
        table.appendChild(tr);
      }
      container.appendChild(table);
    } else if (ctrl.type === 'label') {
      const lbl = document.createElement('div');
      lbl.className = 'control-label';
      lbl.innerHTML = '<span class="cl-text">' + esc(ctrl.text || '') + '</span><span class="cl-value">' + esc(String(ctrl.value ?? '')) + '</span>';
      container.appendChild(lbl);
    } else if (ctrl.type === 'display') {
      const disp = document.createElement('div');
      const dt = ctrl.display_type || 'text';
      const style = ctrl.style ? ' display-' + ctrl.style : '';
      disp.className = 'control-display display-' + dt + style;
      if (dt === 'progress') {
        const pct = Math.min(100, Math.max(0, Number(ctrl.value) || 0));
        disp.innerHTML = '<span class="cd-label">' + esc(ctrl.label) + '</span>'
          + '<div class="cd-bar"><div class="cd-fill" style="width:' + pct + '%"></div></div>'
          + '<span class="cd-pct">' + pct + '%</span>';
      } else if (dt === 'status') {
        disp.innerHTML = '<span class="cd-icon">' + (ctrl.style === 'success' ? '\u2713' : ctrl.style === 'error' ? '\u2717' : '\u2139') + '</span>'
          + '<span class="cd-label">' + esc(ctrl.label) + '</span>';
      } else {
        disp.innerHTML = '<span class="cd-label">' + esc(ctrl.label) + '</span>'
          + (ctrl.value ? '<span class="cd-value">' + esc(String(ctrl.value)) + '</span>' : '');
      }
      container.appendChild(disp);
    } else if (ctrl.type === 'card') {
      container.appendChild(renderCard(ctrl));
    } else if (ctrl.type === 'list') {
      const listEl = document.createElement('div');
      listEl.className = 'ws-list';
      if (ctrl.title) {
        const h = document.createElement('div');
        h.className = 'ws-list-title';
        h.textContent = ctrl.title;
        listEl.appendChild(h);
      }
      for (const item of (ctrl.items || [])) {
        item.type = item.type || 'card';
        listEl.appendChild(renderCard(item));
      }
      container.appendChild(listEl);
    }
  }
  body.appendChild(container);
}

function renderCard(card) {
  const el = document.createElement('div');
  el.className = 'ws-card';
  if (card.action) {
    el.classList.add('ws-card-clickable');
    el.onclick = () => {
      if (_ws && _ws.readyState === 1) {
        _ws.send(JSON.stringify({ type: 'action', action: card.action, data: card.payload || {} }));
        addTrace('runtime', 'action', card.action);
      }
    };
  }

  let html = '';
  if (card.title) html += '<div class="ws-card-title">' + esc(card.title) + '</div>';
  if (card.subtitle) html += '<div class="ws-card-subtitle">' + esc(card.subtitle) + '</div>';

  if (card.fields && card.fields.length) {
    html += '<div class="ws-card-fields">';
    for (const f of card.fields) {
      const val = f.action
        ? '<span class="ws-card-link" data-action="' + esc(f.action) + '">' + esc(String(f.value ?? '')) + '</span>'
        : '<span class="ws-card-val">' + esc(String(f.value ?? '')) + '</span>';
      html += '<div class="ws-card-field"><span class="ws-card-key">' + esc(f.label || '') + '</span>' + val + '</div>';
    }
    html += '</div>';
  }

  if (card.actions && card.actions.length) {
    html += '<div class="ws-card-actions">';
    for (const a of card.actions) {
      html += '<button class="control-btn ws-card-btn" data-action="' + esc(a.action || '') + '">' + esc(a.label || '') + '</button>';
    }
    html += '</div>';
  }

  el.innerHTML = html;

  // Wire up field links and action buttons
  el.querySelectorAll('.ws-card-link').forEach(link => {
    link.onclick = (e) => {
      e.stopPropagation();
      const action = link.dataset.action;
      if (_ws && _ws.readyState === 1) {
        _ws.send(JSON.stringify({ type: 'action', action, data: {} }));
        addTrace('runtime', 'action', action);
      }
    };
  });
  el.querySelectorAll('.ws-card-btn').forEach(btn => {
    btn.onclick = (e) => {
      e.stopPropagation();
      const action = btn.dataset.action;
      if (_ws && _ws.readyState === 1) {
        _ws.send(JSON.stringify({ type: 'action', action, data: {} }));
        addTrace('runtime', 'action', action);
      }
    };
  });

  return el;
}

export function clearDashboard() {
  const body = document.getElementById('workspace-body');
  if (body) body.innerHTML = '';
}