// Traffic Desk client — pick size, pick approved creative, pick destination,
// launch. Balance and running campaigns come from the server.
(function () {
  'use strict';
  var $ = function (id) { return document.getElementById(id); };
  function esc(s) {
    return String(s == null ? '' : s).replace(/[&<>"']/g, function (ch) {
      return { '&': '&amp;', '<': '&lt;', '>': '&gt;', '"': '&quot;', "'": '&#39;' }[ch];
    });
  }
  var state = { size: null, creative: null, target: 'join', creatives: {}, remaining: 0, id: null,
                format: 'banner', angle: 'general', angles: [], variants: [], variant: null, hasPage: false };
  var busy = false;

  function chip(label, on, fn) {
    var b = document.createElement('button');
    b.type = 'button';
    b.className = 'tf-chip' + (on ? ' on' : '');
    b.textContent = label;
    b.addEventListener('click', fn);
    return b;
  }

  function renderSizes(sizes) {
    var host = $('tfSizes');
    host.innerHTML = '';
    sizes.forEach(function (s) {
      host.appendChild(chip(s, s === state.size, function () {
        state.size = s;
        state.creative = (state.creatives[s] || [])[0] || null;
        renderSizes(sizes); renderCreatives();
      }));
    });
  }

  function renderCreatives() {
    var host = $('tfCreatives');
    host.innerHTML = '';
    (state.creatives[state.size] || []).forEach(function (f) {
      var d = document.createElement('div');
      d.className = 'tf-cre' + (f === state.creative ? ' on' : '');
      var img = document.createElement('img');
      img.src = '/banners/' + f;
      img.alt = 'Team banner ' + state.size;
      img.loading = 'lazy';
      d.appendChild(img);
      d.addEventListener('click', function () { state.creative = f; renderCreatives(); });
      host.appendChild(d);
    });
  }

  function renderTargets() {
    var host = $('tfTargets');
    host.innerHTML = '';
    host.appendChild(chip('My invite page', state.target === 'join', function () {
      state.target = 'join'; renderTargets();
    }));
    if (state.hasPage) {
      host.appendChild(chip('My personal page', state.target === 'page', function () {
        state.target = 'page'; renderTargets();
      }));
    } else {
      // Don't let anyone point an ad at a page that doesn't exist yet.
      var d = document.createElement('span');
      d.className = 'tf-hint';
      d.style.cssText = 'margin:0;align-self:center';
      d.innerHTML = 'Want to send traffic to your own page instead? <a href="/suite/page" style="color:var(--gold);font-weight:700">Build it first →</a>';
      host.appendChild(d);
    }
  }

  function renderFormat() {
    var host = $('tfFormat');
    host.innerHTML = '';
    [['banner', 'Banner image'], ['text', 'Text ad']].forEach(function (f) {
      host.appendChild(chip(f[1], state.format === f[0], function () {
        state.format = f[0];
        renderFormat();
        goLabel();
        $('tfBannerPane').style.display = f[0] === 'banner' ? '' : 'none';
        $('tfTextPane').style.display = f[0] === 'text' ? '' : 'none';
      }));
    });
  }

  function renderAngles() {
    var host = $('tfAngles');
    host.innerHTML = '';
    state.angles.forEach(function (a) {
      host.appendChild(chip(a.label, state.angle === a.key, function () {
        state.angle = a.key; renderAngles();
      }));
    });
  }

  function renderVariants() {
    var host = $('tfVariants');
    host.innerHTML = '';
    if (!state.variants.length) return;
    var grid = document.createElement('div');
    grid.className = 'tf-ads';
    state.variants.forEach(function (v, i) {
      var card = document.createElement('div');
      card.className = 'tf-ad' + (state.variant === i ? ' on' : '');
      var s = document.createElement('div');
      s.className = 's'; s.textContent = v.subject;
      card.appendChild(s);
      v.lines.forEach(function (l) {
        if (!l) return;
        var d = document.createElement('div');
        d.className = 'l'; d.textContent = l;
        card.appendChild(d);
      });
      card.addEventListener('click', function () { state.variant = i; renderVariants(); });
      grid.appendChild(card);
    });
    host.appendChild(grid);
    var hint = document.createElement('div');
    hint.className = 'tf-hint';
    hint.textContent = 'Pick the one you want to run, then set your impressions below and launch it.';
    host.appendChild(hint);
  }

  async function writeAds(btn) {
    btn.disabled = true;
    btn.innerHTML = '<span class="spin"></span>Writing…';
    $('tfErr').style.display = 'none';
    try {
      var r = await fetch('/api/public/suite-textads', {
        method: 'POST', headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ angle: state.angle })
      });
      var d = await r.json();
      if (!r.ok) {
        $('tfErr').textContent = d.error || 'The writer could not produce ads just now.';
        $('tfErr').style.display = 'block';
      } else {
        state.variants = d.variants || [];
        state.variant = state.variants.length ? 0 : null;
        renderVariants();
        if (d.meter) showWriteMeter(d.meter);
      }
    } catch (e) {
      $('tfErr').textContent = 'Connection hiccup — try again.';
      $('tfErr').style.display = 'block';
    }
    btn.disabled = false;
    btn.innerHTML = state.variants.length ? '✍️ Write 5 more' : '✍️ Write me 5 ads';
  }

  function showWriteMeter(m) {
    if (!m) return;
    $('tfWriteMeter').textContent = m.remaining + ' of ' + m.limit + ' batches left this month';
  }

  function goLabel() {
    if ($('tfGo').disabled && state.remaining <= 0) return;
    $('tfGo').textContent = state.format === 'text' ? '🚦 Launch my text ad' : '🚦 Launch my banner';
  }

  function gate(msg) {
    $('tfGate').style.display = 'block';
    $('tfGate').innerHTML = msg;
    $('tfCard').style.opacity = '.55';
    $('tfGo').disabled = true;
  }

  function renderLive(campaigns, live) {
    if (!campaigns.length) { $('tfLiveWrap').style.display = 'none'; return; }
    var byId = {};
    (live || []).forEach(function (l) { byId[l.ad_id] = l; });
    var tb = $('tfLive');
    tb.innerHTML = '';
    campaigns.slice().reverse().forEach(function (c) {
      var l = byId[c.adId] || {};
      var tr = document.createElement('tr');
      var served = l.served != null ? l.served : 0;
      // The ad network's own counters sometimes drift ABOVE what we bought —
      // its remaining has been observed at 3,521 on a 2,500 purchase. The cause
      // is inside the ionCube-encoded ad app, so we cannot fix it at source; we
      // can stop it rendering as nonsense. Clamp to what the member actually
      // bought so the row always reconciles: served + left = bought. Any genuine
      // over-delivery is a bonus to them and needs no explanation on this table.
      // The network counts `remaining` DOWN for text ads and UP for banners —
      // measured, not documented. Reading both the same way showed every banner
      // as 0 served while it was quietly delivering thousands.
      var bought = Number(c.bought != null ? c.bought : c.impressions) || 0;
      var rawRem = l.remaining != null ? Number(l.remaining) : null;
      var servedShown, left;
      if (rawRem == null) { servedShown = Number(served) || 0; left = null; }
      else if (c.kind === 'text') { left = Math.max(0, Math.min(rawRem, bought)); servedShown = bought - left; }
      else { servedShown = Math.max(0, Math.min(rawRem, bought)); left = bought - servedShown; }
      // "running" with 0 left reads as broken. It is not: banners have no cap on
      // this network — the counter runs past the purchase and the ad keeps
      // serving until its expiry, so a fully-delivered banner is genuinely
      // still going. Say that plainly, and keep Stop available so a member can
      // actually end it rather than wonder why it never finishes.
      var delivered = servedShown >= bought && bought > 0;
      var statusCell = c.completed
        ? '<span style="color:var(--muted)">delivered in full</span>'
        : c.stopped
        ? 'stopped <span style="opacity:.7">(' + Number(c.refunded || 0).toLocaleString() + ' returned)</span>'
        : !l.live ? 'finished'
        : delivered
          ? '<span style="color:var(--teal)">delivered</span>' +
            '<br><span style="font-size:11.5px;color:var(--muted)">served in full — closing out</span>'
          : '<span style="color:var(--teal)">running</span>';
      var label = c.kind === 'text'
        ? '<b>Text</b><br><span style="font-size:12px">' + esc(c.subject || '') + '</span>'
        : '<b>' + c.size + '</b>';
      tr.innerHTML = '<td>' + label + '</td>' +
        '<td>' + (c.target.indexOf('/p/') !== -1 ? 'personal page' : 'invite page') + '</td>' +
        '<td>' + Number(c.bought != null ? c.bought : c.impressions).toLocaleString() + '</td>' +
        '<td><b>' + Number(c.stopped ? (c.served || 0) : servedShown).toLocaleString() + '</b></td>' +
        '<td>' + (c.stopped ? '—' : (left != null ? left.toLocaleString() : '—')) + '</td>' +
        '<td>' + (l.hits != null ? l.hits : '—') + '</td>' +
        '<td>' + statusCell + '</td>';
      var act = document.createElement('td');
      if (!c.stopped && l.live) {
        var btn = document.createElement('button');
        btn.className = 'btn btn-secondary btn-sm';
        btn.textContent = 'Stop';
        btn.title = 'Stop this banner and return the unserved impressions to your balance';
        btn.addEventListener('click', function () { stopCampaign(c.adId, btn); });
        act.appendChild(btn);
      }
      tr.appendChild(act);
      tb.appendChild(tr);
    });
    $('tfLiveWrap').style.display = 'block';
  }

  function applyStatus(d) {
    var st = d.status;
    state.creatives = st.creatives || {};
    state.id = d.id;
    state.remaining = st.remaining;
    if (typeof d.hasPage === 'boolean') state.hasPage = d.hasPage;
    if (!state.hasPage && state.target === 'page') state.target = 'join';
    if (!state.size) state.size = (st.sizes || [])[0] || null;
    if (!state.creative) state.creative = (state.creatives[state.size] || [])[0] || null;
    $('tfBal').style.display = 'flex';
    $('tfRemain').textContent = Number(st.remaining).toLocaleString();
    $('tfLimit').textContent = Number(st.limit).toLocaleString();
    $('tfNote').innerHTML = 'Level ' + d.level + ' includes <b style="color:var(--text)">' +
      Number(st.limit).toLocaleString() + '</b> impressions a month on the network. Each upgrade raises it — Apex is where it jumps to 50,000.';
    $('tfImp').max = st.remaining;
    $('tfImp').value = Math.min(Number($('tfImp').value) || st.remaining, st.remaining) || 100;
    state.angles = d.textAngles || state.angles;
    renderFormat(); renderAngles(); renderVariants();
    showWriteMeter(d.textMeter);
    if (d.writerReady === false) {
      $('tfWrite').disabled = true;
      $('tfWriteMeter').textContent = 'The writer is warming up.';
    }
    renderSizes(st.sizes || []); renderCreatives(); renderTargets(); goLabel();
    renderLive(st.campaigns || [], d.live || []);
    if (st.remaining <= 0) {
      $('tfGo').disabled = true;
      $('tfGo').textContent = 'Allowance used — refills on the 1st';
    }
  }

  async function stopCampaign(adId, btn) {
    if (btn) { btn.disabled = true; btn.textContent = 'Stopping…'; }
    try {
      var r = await fetch('/api/public/suite-traffic-stop', {
        method: 'POST', headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ ad_id: adId })
      });
      var d = await r.json();
      if (!r.ok) {
        $('tfErr').textContent = d.error || 'Could not stop that banner.';
        $('tfErr').style.display = 'block';
        if (btn) { btn.disabled = false; btn.textContent = 'Stop'; }
        return;
      }
      $('tfOk').innerHTML = '✅ <b>Banner stopped.</b> ' +
        Number(d.stopped.refunded).toLocaleString() + ' unserved impressions went back into your balance' +
        (d.stopped.served ? ' — it had served ' + Number(d.stopped.served).toLocaleString() + '.' : '.');
      $('tfOk').style.display = 'block';
      boot();
    } catch (e) {
      $('tfErr').textContent = 'Connection hiccup — try again.';
      $('tfErr').style.display = 'block';
      if (btn) { btn.disabled = false; btn.textContent = 'Stop'; }
    }
  }

  async function boot() {
    try {
      var r = await fetch('/api/public/suite-traffic');
      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) { gate('The Traffic Desk isn’t 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();
      if (!d.configured) { gate('The ad network bridge is being finalized — this opens shortly.'); return; }
      applyStatus(d);
    } catch (e) {}
  }

  async function run() {
    if (busy) return;
    busy = true;
    $('tfErr').style.display = 'none';
    $('tfOk').style.display = 'none';
    $('tfGo').disabled = true;
    $('tfGo').innerHTML = '<span class="spin"></span>Launching on the network…';

    var payload = { target: state.target, impressions: Number($('tfImp').value) || 0 };
    if (state.format === 'text') {
      var v = state.variants[state.variant];
      if (!v) {
        $('tfErr').textContent = 'Write some ads first, then pick the one you want to run.';
        $('tfErr').style.display = 'block';
        busy = false; $('tfGo').disabled = false; goLabel();
        return;
      }
      payload.kind = 'text';
      payload.subject = v.subject;
      payload.lines = v.lines;
    } else {
      payload.kind = 'banner';
      payload.size = state.size;
      payload.creative = state.creative;
    }

    try {
      var r = await fetch('/api/public/suite-traffic', {
        method: 'POST', headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify(payload)
      });
      var d = await r.json();
      if (!r.ok) {
        $('tfErr').textContent = d.error || 'That didn’t go through — try again.';
        $('tfErr').style.display = 'block';
      } else {
        var what = d.campaign.kind === 'text' ? 'text ad' : 'banner';
        $('tfOk').innerHTML = '✅ <b>Your ' + what + ' is live on the network.</b><br>' +
          Number(d.campaign.impressions).toLocaleString() + ' impressions of ' +
          (d.campaign.kind === 'text' ? 'your text ad' : d.campaign.size) +
          ' pointed at your ' + (d.campaign.target.indexOf('/p/') !== -1 ? 'personal page' : 'invite page') +
          '. It starts rotating immediately — check back here to watch it serve.';
        $('tfOk').style.display = 'block';
        applyStatus({ status: d.status, level: 0, id: state.id, live: [], configured: true });
        // refresh from the server so the running-banners table picks it up
        setTimeout(boot, 800);
      }
    } catch (e) {
      $('tfErr').textContent = 'Connection hiccup — try again.';
      $('tfErr').style.display = 'block';
    }
    busy = false;
    if (state.remaining > 0) { $('tfGo').disabled = false; goLabel(); }
  }

  document.addEventListener('DOMContentLoaded', function () {
    boot();
    $('tfGo').addEventListener('click', run);
    $('tfWrite').addEventListener('click', function () { writeAds(this); });
  });
})();