{% extends "base.html" %}
{% block title %}推荐好友 · AlphaX Agent{% endblock %}

{% block extra_head_css %}
<style>
main { max-width: 680px; margin: 0 auto; width: 100%; padding: 32px 20px; display: flex; flex-direction: column; gap: 28px; }

.page-header { text-align: center; }
.page-header h1 { font-size: 28px; font-weight: 700; letter-spacing: -.5px; margin-bottom: 6px; }
.page-header .sub { font-size: 14px; color: var(--stone); }

/* Invite card */
.invite-card {
  background: var(--canvas); border: 1px solid var(--hairline-soft);
  border-radius: var(--radius-xl); padding: 28px 24px;
  display: flex; flex-direction: column; gap: 16px;
}
.invite-label { font-size: 12px; color: var(--stone); font-weight: 600; text-transform: uppercase; letter-spacing: .5px; }
.invite-link-box {
  display: flex; align-items: center; gap: 8px;
  background: var(--surface); border: 1px solid var(--hairline);
  border-radius: var(--radius-lg); padding: 10px 14px;
  font-size: 14px; color: var(--ink); font-family: monospace;
  word-break: break-all; user-select: all;
}
.invite-link-box .link-text { flex: 1; min-width: 0; }
.copy-btn {
  flex-shrink: 0; padding: 7px 18px; border: 0; border-radius: var(--radius-full);
  background: var(--primary); color: var(--on-primary);
  font-size: 13px; font-weight: 600; cursor: pointer; transition: .15s;
}
.copy-btn:hover { opacity: .85; }
.copy-btn.copied { background: var(--green); }
.copy-msg { font-size: 12px; color: var(--green); min-height: 18px; text-align: center; }

/* Stats */
.stats-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.stat-box {
  background: var(--canvas); border: 1px solid var(--hairline-soft);
  border-radius: var(--radius-xl); padding: 20px;
  text-align: center; display: flex; flex-direction: column; gap: 4px;
}
.stat-box .num { font-size: 36px; font-weight: 700; letter-spacing: -1px; line-height: 1; }
.stat-box .lbl { font-size: 12px; color: var(--stone); }

/* Referred list */
.ref-list { display: flex; flex-direction: column; gap: 8px; }
.ref-card {
  background: var(--canvas); border: 1px solid var(--hairline-soft);
  border-radius: var(--radius-lg); padding: 16px 18px;
  display: flex; align-items: center; gap: 12px;
}
.ref-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--yellow); color: var(--primary);
  display: grid; place-items: center; font-weight: 700; font-size: 14px; flex-shrink: 0;
}
.ref-info { flex: 1; min-width: 0; }
.ref-email { font-weight: 600; font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ref-date { font-size: 11px; color: var(--stone); margin-top: 2px; }
.ref-badge { flex-shrink: 0; font-size: 11px; font-weight: 600; padding: 3px 10px; border-radius: var(--radius-full); }
.ref-badge.verified { background: var(--green-light); color: var(--green); }
.ref-badge.pending { background: var(--yellow-light); color: var(--yellow-dark); }

.empty-state { text-align: center; padding: 48px 20px; color: var(--stone); }
.empty-state p { font-size: 14px; margin-bottom: 8px; }
.empty-state .empty-icon { font-size: 48px; margin-bottom: 16px; opacity: .3; }

/* Share section */
.share-section { text-align: center; }
.share-section h3 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.share-section p { font-size: 13px; color: var(--stone); margin-bottom: 12px; }
.share-tips { display: flex; flex-direction: column; gap: 6px; text-align: left; font-size: 13px; color: var(--slate); line-height: 1.6; padding: 16px 20px; background: var(--surface); border-radius: var(--radius-lg); }

@media(max-width:480px){
  main { padding: 20px 14px; gap: 20px; }
  .invite-card { padding: 20px 16px; }
  .invite-link-box { flex-direction: column; }
  .copy-btn { width: 100%; }
  .stats-row { grid-template-columns: 1fr; }
}
</style>
{% endblock %}

{% block content %}
<main>
  <div class="page-header">
    <h1>🎁 推荐好友</h1>
    <p class="sub">邀请朋友加入 AlphaX Agent，一起跟踪市场信号</p>
  </div>

  <div class="invite-card">
    <div class="invite-label">你的专属邀请链接</div>
    <div class="invite-link-box">
      <span class="link-text" id="inviteLink">加载中...</span>
      <button class="copy-btn" id="copyBtn" onclick="copyLink()">复制链接</button>
    </div>
    <div class="copy-msg" id="copyMsg"></div>
  </div>

  <div class="stats-row" id="statsRow">
    <div class="stat-box"><div class="num">--</div><div class="lbl">已邀请</div></div>
    <div class="stat-box"><div class="num">--</div><div class="lbl">已注册</div></div>
  </div>

  <div id="refSection">
    <h3 style="font-size:16px;font-weight:600;margin-bottom:12px">已邀请好友</h3>
    <div class="ref-list" id="refList">
      <div class="empty-state"><p>加载中...</p></div>
    </div>
  </div>

  <div class="share-section">
    <h3>如何推荐</h3>
    <p>复制邀请链接发送给朋友，他们注册时将自动绑定你的邀请码</p>
    <div class="share-tips">
      <div>📋 复制邀请链接，通过微信 / Telegram / 邮件分享</div>
      <div>🔗 好友点击链接注册，系统自动记录邀请关系</div>
      <div>📊 你可以在本页查看邀请进度</div>
    </div>
  </div>
</main>
{% endblock %}

{% block extra_script %}
<script>
var inviteCode = '';
var baseUrl = window.location.origin;

async function init() {
  try {
    var r = await fetch('/api/auth/me');
    if (!r.ok) { window.location.href = '/auth'; return; }
    var data = await r.json();
    inviteCode = data.user.invite_code || '';
    if (!inviteCode) {
      document.getElementById('inviteLink').textContent = '暂无邀请码';
      return;
    }
    var link = baseUrl + '/auth?invite=' + inviteCode;
    document.getElementById('inviteLink').textContent = link;
    loadReferralStats();
  } catch(e) {
    document.getElementById('inviteLink').textContent = '加载失败，请刷新重试';
  }
}

async function loadReferralStats() {
  try {
    var r = await fetch('/api/referral/stats');
    if (!r.ok) return;
    var d = await r.json();
    document.getElementById('statsRow').innerHTML =
      '<div class="stat-box"><div class="num">' + (d.total_invited || 0) + '</div><div class="lbl">已邀请</div></div>' +
      '<div class="stat-box"><div class="num">' + (d.total_registered || 0) + '</div><div class="lbl">已注册</div></div>';
    renderRefList(d.invited_users || []);
  } catch(e) {}
}

function renderRefList(users) {
  var list = document.getElementById('refList');
  if (!users.length) {
    list.innerHTML = '<div class="empty-state"><div class="empty-icon">📭</div><p>还没有好友通过你的链接注册</p><p style="font-size:12px;color:var(--muted)">分享邀请链接，开始推荐吧</p></div>';
    return;
  }
  list.innerHTML = users.map(function(u) {
    var initial = (u.email || '?').charAt(0).toUpperCase();
    var badge = u.email_verified
      ? '<span class="ref-badge verified">已验证</span>'
      : '<span class="ref-badge pending">未验证</span>';
    var date = u.created_at ? u.created_at.slice(0, 10) : '--';
    return '<div class="ref-card">' +
      '<div class="ref-avatar">' + initial + '</div>' +
      '<div class="ref-info"><div class="ref-email">' + esc(u.email) + '</div><div class="ref-date">' + date + '</div></div>' +
      badge +
      '</div>';
  }).join('');
}

function copyLink() {
  var link = document.getElementById('inviteLink').textContent;
  if (!link || link === '加载中...' || link === '暂无邀请码') return;
  navigator.clipboard.writeText(link).then(function() {
    var btn = document.getElementById('copyBtn');
    var msg = document.getElementById('copyMsg');
    btn.textContent = '已复制 ✓';
    btn.classList.add('copied');
    msg.textContent = '邀请链接已复制到剪贴板';
    setTimeout(function() {
      btn.textContent = '复制链接';
      btn.classList.remove('copied');
      msg.textContent = '';
    }, 2000);
  }).catch(function() {
    var msg = document.getElementById('copyMsg');
    msg.textContent = '复制失败，请手动选择链接复制';
    msg.style.color = 'var(--red)';
  });
}

function esc(s) { return String(s||'').replace(/[&<>"]/g, function(c){ return {'&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot;'}[c] }); }

init();
</script>
{% endblock %}