mtg_python_deckbuilder/code/web/templates/diagnostics/index.html

{% extends "base.html" %}
{% block content %}
<section>
  <h2>Diagnostics</h2>
  <p class="muted">Use these tools to verify error handling surfaces.</p>
  <div class="card" style="background: var(--panel); border:1px solid var(--border); border-radius:10px; padding:.75rem; margin-bottom:.75rem">
    <h3 style="margin-top:0">System summary</h3>
    <div id="sysSummary" class="muted">Loading…</div>
    <div id="themeSummary" style="margin-top:.5rem"></div>
    <div style="margin-top:.35rem">
      <button class="btn" id="diag-theme-reset">Reset theme preference</button>
    </div>
  </div>
  <div class="card" style="background: var(--panel); border:1px solid var(--border); border-radius:10px; padding:.75rem; margin-bottom:.75rem">
    <h3 style="margin-top:0">Performance (local)</h3>
    <div class="muted" style="margin-bottom:.35rem">Scroll the Step 5 list; this panel shows a rough FPS estimate and virtualization renders.</div>
    <div style="display:flex; gap:1rem; flex-wrap:wrap">
      <div><strong>Scroll FPS:</strong> <span id="perf-fps">–</span></div>
      <div><strong>Visible tiles:</strong> <span id="perf-visible">–</span></div>
      <div><strong>Render count:</strong> <span id="perf-renders">0</span></div>
    </div>
  </div>
  <div class="card" style="background: var(--panel); border:1px solid var(--border); border-radius:10px; padding:.75rem; margin-bottom:.75rem">
    <h3 style="margin-top:0">Combos & Synergies (ad-hoc)</h3>
    <div class="muted" style="margin-bottom:.35rem">Paste card names (one per line) and detect two-card combos and synergies using current lists.</div>
    <textarea id="diag-combos-input" rows="6" style="width:100%; resize:vertical; font-family: var(--mono);"></textarea>
    <div style="margin-top:.5rem; display:flex; gap:.5rem; align-items:center">
      <button class="btn" id="diag-combos-run">Detect</button>
      <small class="muted">Runs in diagnostics mode only.</small>
    </div>
    <pre id="diag-combos-out" style="margin-top:.5rem; white-space:pre-wrap"></pre>
  </div>
  {% if enable_pwa %}
  <div class="card" style="background:#0f1115; border:1px solid var(--border); border-radius:10px; padding:.75rem; margin-bottom:.75rem">
    <h3 style="margin-top:0">PWA status</h3>
    <div id="pwaStatus" class="muted">Checking…</div>
  </div>
  {% endif %}
  <div class="card" style="background: var(--panel); border:1px solid var(--border); border-radius:10px; padding:.75rem;">
  <h3 style="margin-top:0">Error triggers</h3>
    <div class="row" style="display:flex; gap:.5rem; align-items:center">
  <button class="btn" hx-get="/diagnostics/trigger-error" hx-trigger="click" hx-target="this" hx-swap="none">Trigger HTTP error (418)</button>
  <button class="btn" hx-get="/diagnostics/trigger-error?kind=unhandled" hx-trigger="click" hx-target="this" hx-swap="none">Trigger unhandled error (500)</button>
      <small class="muted">You should see a toast and an inline banner with Request-ID.</small>
    </div>
  </div>
  {% if show_logs %}
  <p style="margin-top:.75rem"><a class="btn" href="/logs">Open Logs</a></p>
  {% endif %}
</section>
<script>
(function(){
  var el = document.getElementById('sysSummary');
  function render(data){
    if (!el) return;
    try {
      var v = (data && data.version) || 'dev';
      var up = (data && data.uptime_seconds) || 0;
      var st = (data && data.server_time_utc) || '';
      var flags = (data && data.flags) || {};
      el.innerHTML = '<div><strong>Version:</strong> '+String(v)+'</div>'+
        (st ? '<div><strong>Server time (UTC):</strong> '+String(st)+'</div>' : '')+
        '<div><strong>Uptime:</strong> '+String(up)+'s</div>'+
        '<div><strong>Flags:</strong> SHOW_LOGS='+ (flags.SHOW_LOGS? '1':'0') +', SHOW_DIAGNOSTICS='+ (flags.SHOW_DIAGNOSTICS? '1':'0') +', SHOW_SETUP='+ (flags.SHOW_SETUP? '1':'0') +'</div>';
    } catch(_){ el.textContent = 'Unavailable'; }
  }
  function load(){
    try { fetch('/status/sys', { cache: 'no-store' }).then(function(r){ return r.json(); }).then(render).catch(function(){ el.textContent='Unavailable'; }); } catch(_){ el.textContent='Unavailable'; }
  }
  load();
  // Theme status and reset
  try{
    var tEl = document.getElementById('themeSummary');
    var resetBtn = document.getElementById('diag-theme-reset');
    function renderTheme(){
      if (!tEl) return;
      var key = 'mtg:theme';
      var stored = localStorage.getItem(key);
      var html = '';
      var resolved = document.documentElement.getAttribute('data-theme') || '';
      html += '<div><strong>Resolved theme:</strong> ' + resolved + '</div>';
      html += '<div><strong>Preference:</strong> ' + (stored ? stored : '(none)') + '</div>';
      tEl.innerHTML = html;
    }
    renderTheme();
    if (resetBtn){
      resetBtn.addEventListener('click', function(){
        try{ localStorage.removeItem('mtg:theme'); }catch(_){ }
        // Re-apply from server default via base script by simulating system apply
        try{
          var prefersDark = window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches;
          var v = prefersDark ? 'dark' : 'light-blend';
          document.documentElement.setAttribute('data-theme', v);
        }catch(_){ }
        renderTheme();
      });
    }
  }catch(_){ }
  // Combos & synergies ad-hoc tester
  try{
    var runBtn = document.getElementById('diag-combos-run');
    var ta = document.getElementById('diag-combos-input');
    var out = document.getElementById('diag-combos-out');
    function parseLines(){
      var v = (ta && ta.value) || '';
      return v.split(/\r?\n/).map(function(s){ return s.trim(); }).filter(Boolean);
    }
    async function run(){
      if (!ta || !out) return;
      out.textContent = 'Running…';
      try{
        var resp = await fetch('/diagnostics/combos', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ names: parseLines() })});
        if (!resp.ok){ out.textContent = 'Error '+resp.status; return; }
        var data = await resp.json();
        var lines = [];
        // Versions
        try{
          if (data.versions){
            var vLine = 'List versions: ';
            if (data.versions.combos) vLine += 'combos v'+ String(data.versions.combos);
            if (data.versions.synergies) vLine += (data.versions.combos? ', ' : '') + 'synergies v'+ String(data.versions.synergies);
            lines.push(vLine);
          }
        }catch(_){ }
        lines.push('Combos: '+ data.counts.combos);
        (data.combos||[]).forEach(function(c){
          var badges = [];
          if (c.cheap_early) badges.push('cheap/early');
          if (c.setup_dependent) badges.push('setup-dependent');
          var tagStr = (c.tags && c.tags.length? ' ['+c.tags.join(', ')+']' : '');
          var badgeStr = badges.length ? ' {'+badges.join(', ')+'}' : '';
          lines.push(' - '+c.a+' + '+c.b+ tagStr + badgeStr);
        });
        lines.push('Synergies: '+ data.counts.synergies);
        (data.synergies||[]).forEach(function(s){ lines.push(' - '+s.a+' + '+s.b+(s.tags && s.tags.length? ' ['+s.tags.join(', ')+']':'')); });
        out.textContent = lines.join('\n');
      }catch(e){ out.textContent = 'Failed: '+ (e && e.message? e.message : 'Unknown error'); }
    }
    if (runBtn){ runBtn.addEventListener('click', run); }
  }catch(_){ }
  try{
    var p = document.getElementById('pwaStatus');
    if (p){
      function renderPwa(){
        try{
          var st = window.__pwaStatus || {};
          p.innerHTML = '<div><strong>Registered:</strong> '+ (st.registered? 'Yes':'No') +'</div>' + (st.scope? '<div><strong>Scope:</strong> '+ st.scope +'</div>' : '');
        }catch(_){ p.textContent = 'Unavailable'; }
      }
      setTimeout(renderPwa, 500);
    }
  }catch(_){ }
  // Perf probe: listen to scroll on a card grid if present
  try{
    var fpsEl = document.getElementById('perf-fps');
    var visEl = document.getElementById('perf-visible');
    var rcEl = document.getElementById('perf-renders');
    var grid = document.querySelector('.card-grid');
    var last = performance.now();
    var frames = 0; var renders = 0;
    function tick(){
      frames++;
      var now = performance.now();
      if (now - last >= 500){
        var fps = Math.round((frames * 1000) / (now - last));
        if (fpsEl) fpsEl.textContent = String(fps);
        frames = 0; last = now;
      }
      requestAnimationFrame(tick);
    }
    requestAnimationFrame(tick);
    function updateVisible(){
      try{
        if (!grid) return;
        var tiles = grid.querySelectorAll('.card-tile');
        var c = 0; tiles.forEach(function(t){ if (t.style.display !== 'none') c++; });
        if (visEl) visEl.textContent = String(c);
      }catch(_){ }
    }
    if (grid){
      grid.addEventListener('scroll', updateVisible);
      var mo = new MutationObserver(function(){ renders++; if (rcEl) rcEl.textContent = String(renders); updateVisible(); });
      mo.observe(grid, { childList: true, subtree: true, attributes: false });
      updateVisible();
    }
  }catch(_){ }
})();
</script>
{% endblock %}