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<!DOCTYPE html>
<html lang="my">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Coins ဝယ်ယူပါ — Recap Studio</title>
<style>
  *{box-sizing:border-box;margin:0;padding:0}
  body{font-family:'Segoe UI',sans-serif;background:#0f0f1a;color:#e0e0ff;min-height:100vh;padding:20px}
  .container{max-width:520px;margin:0 auto}
  h1{text-align:center;font-size:1.5rem;margin-bottom:6px;color:#a78bfa}
  .subtitle{text-align:center;color:#888;font-size:.85rem;margin-bottom:24px}
  .back-btn{display:inline-flex;align-items:center;gap:6px;color:#a78bfa;text-decoration:none;font-size:.85rem;margin-bottom:18px}
  .back-btn:hover{color:#c4b5fd}

  /* Packages */
  .packages{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:24px}
  .pkg{border:2px solid #2a2a4a;border-radius:12px;padding:16px;cursor:pointer;transition:.2s;background:#16162a;text-align:center;position:relative}
  .pkg:hover{border-color:#7c3aed;transform:translateY(-2px)}
  .pkg.selected{border-color:#a78bfa;background:#1e1440}
  .pkg.popular::before{content:'🔥 Popular';position:absolute;top:-10px;left:50%;transform:translateX(-50%);background:#7c3aed;color:#fff;font-size:.7rem;padding:2px 10px;border-radius:20px;white-space:nowrap}
  .pkg-coins{font-size:1.6rem;font-weight:700;color:#a78bfa}
  .pkg-unit{font-size:.8rem;color:#888;margin-bottom:4px}
  .pkg-price{font-size:.95rem;color:#fbbf24;font-weight:600}

  /* KBZ Pay info */
  .kbz-card{background:#1a1a2e;border:1px solid #2a2a4a;border-radius:12px;padding:18px;margin-bottom:20px}
  .kbz-title{font-size:.85rem;color:#888;margin-bottom:10px}
  .kbz-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
  .kbz-label{font-size:.8rem;color:#888}
  .kbz-val{font-size:1rem;font-weight:700;color:#e0e0ff;letter-spacing:.5px}
  .copy-btn{background:#2a2a4a;border:none;color:#a78bfa;font-size:.75rem;padding:4px 10px;border-radius:6px;cursor:pointer;transition:.2s}
  .copy-btn:hover{background:#3a3a6a}
  .selected-pkg-info{text-align:center;font-size:.9rem;color:#fbbf24;margin-bottom:12px;min-height:22px}

  /* Slip upload */
  .slip-section{margin-bottom:20px}
  .slip-label{font-size:.85rem;color:#888;margin-bottom:8px;display:block}
  .slip-drop{border:2px dashed #3a3a6a;border-radius:12px;padding:30px;text-align:center;cursor:pointer;transition:.2s;position:relative;overflow:hidden}
  .slip-drop:hover,.slip-drop.drag{border-color:#a78bfa;background:#1a1440}
  .slip-drop input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}
  .slip-preview{width:100%;max-height:200px;object-fit:contain;border-radius:8px;display:none;margin-top:10px}
  .slip-icon{font-size:2rem;margin-bottom:8px}
  .slip-text{font-size:.85rem;color:#888}

  /* Submit */
  .submit-btn{width:100%;padding:14px;border:none;border-radius:12px;background:linear-gradient(135deg,#7c3aed,#a855f7);color:#fff;font-size:1rem;font-weight:700;cursor:pointer;transition:.2s}
  .submit-btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 20px rgba(124,58,237,.5)}
  .submit-btn:disabled{opacity:.5;cursor:not-allowed}

  /* Toast */
  .toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#1e1440;border:1px solid #7c3aed;color:#e0e0ff;padding:12px 24px;border-radius:12px;font-size:.9rem;opacity:0;transition:.3s;pointer-events:none;z-index:999;white-space:nowrap}
  .toast.show{opacity:1}
  .toast.error{border-color:#ef4444;background:#2a0a0a}
  .toast.success{border-color:#22c55e;background:#0a2a0a}

  .history-link{display:block;text-align:center;color:#a78bfa;font-size:.85rem;margin-top:16px;text-decoration:none}
  .history-link:hover{text-decoration:underline}
</style>
</head>
<body>
<div class="container">
  <a href="/app" class="back-btn">← App သို့ပြန်သွားရန်</a>
  <h1>🪙 Coins ဝယ်ယူပါ</h1>
  <p class="subtitle">KBZ Pay ဖြင့် ငွေပေးချေပြီး Slip တင်ပေးပါ</p>

  <!-- Packages -->
  <div class="packages" id="packages"></div>
  <div class="selected-pkg-info" id="selectedInfo">Package တစ်ခု ရွေးချယ်ပါ</div>

  <!-- KBZ Pay Info -->
  <div class="kbz-card">
    <div class="kbz-title">💳 KBZ Pay ငွေလွှဲရမည့် အချက်အလက်</div>
    <div class="kbz-row">
      <span class="kbz-label">Name</span>
      <div style="display:flex;align-items:center;gap:8px">
        <span class="kbz-val" id="kbzName"></span>
        <button class="copy-btn" onclick="copyText('kbzName')">Copy</button>
      </div>
    </div>
    <div class="kbz-row">
      <span class="kbz-label">Phone</span>
      <div style="display:flex;align-items:center;gap:8px">
        <span class="kbz-val" id="kbzNum"></span>
        <button class="copy-btn" onclick="copyText('kbzNum')">Copy</button>
      </div>
    </div>
  </div>

  <!-- Slip Upload -->
  <div class="slip-section">
    <span class="slip-label">📸 ငွေလွှဲ Slip ပုံ တင်ပေးပါ</span>
    <div class="slip-drop" id="slipDrop">
      <input type="file" accept="image/*" id="slipInput" onchange="handleSlip(this)">
      <div class="slip-icon">📎</div>
      <div class="slip-text">Slip ပုံကို ထိုနေရာတွင် ထည့်ပါ သို့မဟုတ် နှိပ်ပါ</div>
      <img id="slipPreview" class="slip-preview" alt="Slip Preview">
    </div>
  </div>

  <button class="submit-btn" id="submitBtn" onclick="submitPayment()" disabled>
    💰 Payment တင်ပေးပါ
  </button>
  <a href="/payment-history" class="history-link">📋 ငွေပေးချေမှု မှတ်တမ်း ကြည့်ရန်</a>
</div>
<div class="toast" id="toast"></div>

<script>
let username = '';
let selectedPkg = null;
let slipBase64 = null;
const packages = [];

async function init() {
  // Read from same sessionStorage key used by index.html
  try {
    const saved = sessionStorage.getItem('recap_user');
    if (!saved) { window.location.href = '/login'; return; }
    const sess = JSON.parse(saved);
    username = sess.u || '';
  } catch(e) { window.location.href = '/login'; return; }
  if (!username) { window.location.href = '/login'; return; }
  const r = await fetch('/api/payment/packages').then(r => r.json());
  r.packages.forEach((p, i) => packages.push(p));
  document.getElementById('kbzName').textContent = r.kbz_name;
  document.getElementById('kbzNum').textContent = r.kbz_number;
  renderPackages();
}

function renderPackages() {
  const el = document.getElementById('packages');
  el.innerHTML = packages.map((p, i) => `
    <div class="pkg ${i===1?'popular':''}" id="pkg${i}" onclick="selectPkg(${i})">
      <div class="pkg-coins">${p.coins}</div>
      <div class="pkg-unit">Coins</div>
      <div class="pkg-price">${p.price}</div>
    </div>
  `).join('');
}

function selectPkg(i) {
  document.querySelectorAll('.pkg').forEach(el => el.classList.remove('selected'));
  document.getElementById('pkg'+i).classList.add('selected');
  selectedPkg = packages[i];
  document.getElementById('selectedInfo').textContent =
    `✅ ${selectedPkg.coins} Coins — ${selectedPkg.price} ရွေးချယ်ထားသည်`;
  checkReady();
}

function handleSlip(input) {
  const file = input.files[0];
  if (!file) return;
  if (file.size > 5 * 1024 * 1024) { showToast('❌ ပုံဆိုဒ် 5MB ထက် မကြီးပါနှင့်', 'error'); return; }
  const reader = new FileReader();
  reader.onload = e => {
    slipBase64 = e.target.result;
    const img = document.getElementById('slipPreview');
    img.src = slipBase64;
    img.style.display = 'block';
    document.querySelector('.slip-icon').style.display = 'none';
    document.querySelector('.slip-text').style.display = 'none';
    checkReady();
  };
  reader.readAsDataURL(file);
}

function checkReady() {
  document.getElementById('submitBtn').disabled = !(selectedPkg && slipBase64);
}

async function submitPayment() {
  if (!selectedPkg || !slipBase64) return;
  const btn = document.getElementById('submitBtn');
  btn.disabled = true;
  btn.textContent = '⏳ တင်နေသည်…';
  try {
    const r = await fetch('/api/payment/submit', {
      method: 'POST',
      headers: {'Content-Type':'application/json'},
      body: JSON.stringify({
        username, coins: selectedPkg.coins,
        price: selectedPkg.price, slip_image: slipBase64
      })
    }).then(r => r.json());
    if (r.ok) {
      showToast(r.msg, 'success');
      setTimeout(() => window.location.href = '/payment-history', 2000);
    } else {
      showToast(r.msg, 'error');
      btn.disabled = false;
      btn.textContent = '💰 Payment တင်ပေးပါ';
    }
  } catch(e) {
    showToast('❌ Error: ' + e.message, 'error');
    btn.disabled = false;
    btn.textContent = '💰 Payment တင်ပေးပါ';
  }
}

function copyText(id) {
  const t = document.getElementById(id).textContent;
  navigator.clipboard.writeText(t).then(() => showToast('✅ Copied!', 'success'));
}

function showToast(msg, type='') {
  const t = document.getElementById('toast');
  t.textContent = msg;
  t.className = 'toast show ' + type;
  setTimeout(() => t.className = 'toast', 3000);
}

// Drag over
const drop = document.getElementById('slipDrop');
drop.addEventListener('dragover', e => { e.preventDefault(); drop.classList.add('drag'); });
drop.addEventListener('dragleave', () => drop.classList.remove('drag'));
drop.addEventListener('drop', e => {
  e.preventDefault(); drop.classList.remove('drag');
  const f = e.dataTransfer.files[0];
  if (f) { document.getElementById('slipInput').files = e.dataTransfer.files; handleSlip({files:[f]}); }
});

init();
</script>
</body>
</html>