<%- include('../shared/_head', { title: title, portalCss: '/platform/payer/css/portal.css', bodyClass: 'payer-portal scan-page' }) %>

<style>
.scan-shell {
  display: flex;
  flex-direction: column;
  height: 100dvh;
  background: #000;
  color: #fff;
}
.scan-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: rgba(0,0,0,0.7);
  position: relative;
  z-index: 10;
}
.scan-topbar-title {
  font-weight: 700;
  font-size: 1.1rem;
}
.scan-back {
  color: #fff;
  text-decoration: none;
  font-size: 0.9rem;
  opacity: 0.85;
}
.scan-viewport {
  flex: 1;
  position: relative;
  overflow: hidden;
}
#scan-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
#scan-canvas {
  display: none;
}
.scan-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.scan-frame {
  width: min(72vw, 280px);
  height: min(72vw, 280px);
  position: relative;
}
.scan-frame::before,
.scan-frame::after,
.scan-frame > span::before,
.scan-frame > span::after {
  content: '';
  position: absolute;
  width: 32px;
  height: 32px;
  border-color: #fff;
  border-style: solid;
  opacity: 0.9;
}
.scan-frame::before  { top: 0;    left: 0;   border-width: 4px 0 0 4px; border-radius: 4px 0 0 0; }
.scan-frame::after   { top: 0;    right: 0;  border-width: 4px 4px 0 0; border-radius: 0 4px 0 0; }
.scan-frame > span::before { bottom: 0; left: 0;  border-width: 0 0 4px 4px; border-radius: 0 0 0 4px; }
.scan-frame > span::after  { bottom: 0; right: 0; border-width: 0 4px 4px 0; border-radius: 0 0 4px 0; }
.scan-overlay--found  .scan-frame::before,
.scan-overlay--found  .scan-frame::after,
.scan-overlay--found  .scan-frame > span::before,
.scan-overlay--found  .scan-frame > span::after { border-color: #22c55e; }
.scan-overlay--error  .scan-frame::before,
.scan-overlay--error  .scan-frame::after,
.scan-overlay--error  .scan-frame > span::before,
.scan-overlay--error  .scan-frame > span::after { border-color: #ef4444; }
.scan-bottom {
  padding: 20px;
  background: rgba(0,0,0,0.75);
  text-align: center;
}
.scan-status {
  font-size: 0.95rem;
  opacity: 0.9;
}
.scan-status--success { color: #86efac; }
.scan-status--error   { color: #fca5a5; }
</style>

<div class="scan-shell">
  <div class="scan-topbar">
    <a href="/payer/dashboard" class="scan-back">← Back</a>
    <span class="scan-topbar-title">Scan to Pay</span>
    <span style="width:60px"></span>
  </div>

  <div class="scan-viewport">
    <video id="scan-video" autoplay muted playsinline style="display:none"></video>
    <canvas id="scan-canvas" style="display:none"></canvas>
    <div id="scan-overlay" class="scan-overlay">
      <div class="scan-frame"><span></span></div>
    </div>
  </div>

  <div class="scan-bottom">
    <p id="scan-status" class="scan-status">Starting…</p>

    <!-- Shown on HTTP (no getUserMedia). Hidden by default; JS reveals it. -->
    <div id="scan-tap-btn" style="display:none;margin-top:16px">
      <button type="button"
              style="background:#fff;color:#000;border:none;border-radius:12px;padding:16px 40px;font-size:1.1rem;font-weight:700;cursor:pointer;width:100%;max-width:320px">
        Open Camera
      </button>
      <p style="margin-top:8px;font-size:0.75rem;opacity:0.5">
        Your camera will open — point it at the QR code and take a photo
      </p>
    </div>

    <input id="scan-file-input" type="file" accept="image/*" capture="environment"
           style="display:none" aria-hidden="true">

    <p style="margin-top:12px;font-size:0.8rem;opacity:0.5">
      Point at the QR code shown on the merchant's device
    </p>
  </div>
</div>

<script src="/platform/payer/js/jsqr.js"></script>
<script src="/platform/payer/js/scan.js"></script>

<%- include('../shared/_foot') %>
