// Co-Branded Pages client. Everything previews live, because the whole value of
// this tool is seeing what your pages will look like before you commit.
(function () {
  'use strict';
  var $ = function (id) { return document.getElementById(id); };
  var state = { accents: [], accent: 'gold' };

  function gate(msg) {
    $('bGate').style.display = 'block';
    $('bGate').innerHTML = msg;
  }

  function hexFor(key) {
    var a = state.accents.filter(function (x) { return x.key === key; })[0];
    return a ? a.hex : '#f3be43';
  }

  // Same rule the server uses, so the preview cannot disagree with what gets
  // saved: initials of the first two words, or the first two characters.
  function monogram(name) {
    var clean = String(name || '').replace(/[^A-Za-z0-9 ]+/g, ' ').trim();
    if (!clean) return '';
    var w = clean.split(/\s+/).filter(Boolean);
    if (w.length >= 2) return (w[0][0] + w[1][0]).toUpperCase();
    return w[0].slice(0, 2).toUpperCase();
  }

  function renderSwatches() {
    var host = $('bSwatches');
    host.innerHTML = '';
    state.accents.forEach(function (a) {
      var b = document.createElement('button');
      b.type = 'button';
      b.className = 'b-sw' + (a.key === state.accent ? ' on' : '');
      b.style.background = a.hex;
      b.title = a.label;
      b.setAttribute('aria-label', a.label);
      b.addEventListener('click', function () { state.accent = a.key; renderSwatches(); preview(); });
      host.appendChild(b);
    });
  }

  function preview() {
    var name = $('bName').value.trim();
    var tag = $('bTag').value.trim();
    var hex = hexFor(state.accent);
    var mono = monogram(name);

    $('bMono').textContent = mono || '—';
    $('bMono').style.color = hex;
    $('bMono').style.border = '2px solid ' + hex;
    $('bMono').style.background = hex + '22';
    $('bPrevName').textContent = name || 'Your brand';
    $('bPrevTag').textContent = tag || 'A personal invitation';
    $('bPrevGold').style.color = hex;
    var btn = $('bPrevBtn');
    btn.style.background = hex;
    btn.style.borderColor = hex;
    btn.style.color = '#071421';
  }

  async function save() {
    $('bErr').style.display = 'none';
    $('bOk').style.display = 'none';
    var name = $('bName').value.trim();
    if (name.length < 2) {
      $('bErr').textContent = 'Give your brand a name — two characters or more.';
      $('bErr').style.display = 'block';
      return;
    }
    $('bSave').disabled = true;
    try {
      var r = await fetch('/api/public/suite-brand', {
        method: 'POST', headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ brandName: name, tagline: $('bTag').value.trim(), accent: state.accent })
      });
      var d = await r.json();
      if (!r.ok) {
        $('bErr').textContent = d.error || 'That did not save.';
        $('bErr').style.display = 'block';
      } else {
        $('bOk').innerHTML = '✅ <b>Saved.</b> Every page you have built now carries your branding — ' +
          '<a href="/suite/page" style="color:var(--gold);font-weight:700">go and look at one</a>.';
        $('bOk').style.display = 'block';
      }
    } catch (e) {
      $('bErr').textContent = 'Connection hiccup — try again.';
      $('bErr').style.display = 'block';
    }
    $('bSave').disabled = false;
  }

  async function clearBrand() {
    if (!window.confirm('Go back to team branding on all your pages?')) return;
    try {
      var r = await fetch('/api/public/suite-brand', {
        method: 'POST', headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ clear: true })
      });
      var d = await r.json();
      if (r.ok) {
        $('bName').value = ''; $('bTag').value = '';
        state.accent = 'gold';
        renderSwatches(); preview();
        $('bOk').innerHTML = 'Back to team branding on all your pages.';
        $('bOk').style.display = 'block';
      }
    } catch (e) {}
  }

  async function boot() {
    try {
      var r = await fetch('/api/public/suite-brand');
      if (r.status === 401) { gate('You’re not signed in yet. <a href="/suite" style="color:var(--gold);font-weight:700">Open the Suite</a> and connect the wallet that holds your position, then come back.'); return; }
      if (r.status === 403) {
        var g = await r.json();
        gate((g.error || 'Not open for this position yet.') + ' <a href="/suite" style="color:var(--gold);font-weight:700">See your Suite</a>.');
        return;
      }
      if (!r.ok) return;
      var d = await r.json();
      state.accents = d.accents || [];
      var b = d.brand || {};
      state.accent = b.accent || 'gold';
      $('bName').value = b.brandName || '';
      $('bTag').value = b.tagline || '';
      $('bBody').style.display = 'block';
      renderSwatches();
      preview();
      if (!(d.pages || []).length) {
        $('bOk').innerHTML = 'You have no pages yet — <a href="/suite/page" style="color:var(--gold);font-weight:700">build one</a> and your branding will be on it.';
        $('bOk').style.display = 'block';
      }
    } catch (e) {}
  }

  document.addEventListener('DOMContentLoaded', function () {
    boot();
    $('bName').addEventListener('input', preview);
    $('bTag').addEventListener('input', preview);
    $('bSave').addEventListener('click', save);
    $('bClear').addEventListener('click', clearBrand);
  });
})();