// Assist dialog input-field readability patch
// Targets ha-voice-command-dialog's text input and forces theme-driven colors,
// since HA's own theme variables don't reach the nested mwc-textfield shadow root.
(function () {
  if (window.__assistFixLoaded) return;
  window.__assistFixLoaded = true;

  const css = `
    :host .mdc-text-field,
    :host .mdc-text-field--filled,
    .mdc-text-field,
    .mdc-text-field--filled {
      background-color: var(--card-background-color, rgba(22, 24, 40, 0.92)) !important;
      border-radius: 8px !important;
    }
    :host .mdc-text-field__input,
    .mdc-text-field__input,
    :host input,
    input {
      color: var(--primary-text-color, #e7e9f4) !important;
      caret-color: var(--primary-text-color, #e7e9f4) !important;
    }
    :host .mdc-floating-label,
    .mdc-floating-label,
    :host .mdc-text-field__affix,
    .mdc-text-field__affix {
      color: var(--secondary-text-color, #9a9cb8) !important;
    }
    :host .mdc-line-ripple::before,
    .mdc-line-ripple::before {
      border-bottom-color: var(--divider-color, rgba(255, 255, 255, 0.18)) !important;
    }
  `;

  function walkShadow(root, depth = 0) {
    if (!root || depth > 8) return [];
    const found = [];
    try {
      root.querySelectorAll('ha-textfield, ha-textarea, mwc-textfield, mwc-textarea').forEach(el => found.push(el));
      root.querySelectorAll('*').forEach(el => {
        if (el.shadowRoot) found.push(...walkShadow(el.shadowRoot, depth + 1));
      });
    } catch (e) {}
    return found;
  }

  function injectInto(textfield) {
    if (!textfield || textfield.__assistFixDone) return;
    textfield.__assistFixDone = true;
    const sr = textfield.shadowRoot;
    if (!sr) return;
    const style = document.createElement('style');
    style.textContent = css;
    sr.appendChild(style);
    // Also patch the nested mwc-textfield if present
    walkShadow(sr).forEach(tf => {
      if (tf !== textfield && !tf.__assistFixDone && tf.shadowRoot) {
        tf.__assistFixDone = true;
        const s = document.createElement('style');
        s.textContent = css;
        tf.shadowRoot.appendChild(s);
      }
    });
  }

  function scan() {
    // Look for any Assist dialog in the DOM
    const dialogs = document.querySelectorAll(
      'ha-voice-command-dialog, dialog-voice-command-dialog, ha-conversation-dialog'
    );
    dialogs.forEach(d => {
      if (d.shadowRoot) walkShadow(d.shadowRoot).forEach(injectInto);
    });
    // Also scan root-level more-info dialogs that might host textfields
    if (document.body) {
      walkShadow(document.body).forEach(injectInto);
    }
  }

  // Run on mutations (dialog opens / closes)
  const obs = new MutationObserver(() => scan());
  obs.observe(document.body || document.documentElement, {
    childList: true,
    subtree: true,
  });

  // Initial pass + periodic sweep for first 30s (covers page-load races)
  let passes = 0;
  const interval = setInterval(() => {
    scan();
    if (++passes > 30) clearInterval(interval);
  }, 1000);
  scan();

  console.log('[assist-fix] loaded');
})();