{% extends "portal/base.html" %}
{% load static %}

{% block title %}充值 - cmhub{% endblock %}

{% block content %}
<div class="d-flex flex-column gap-4">
  <div class="d-flex justify-content-between align-items-start gap-3 flex-wrap">
    <div>
      <h1 class="h3 mb-1">充值</h1>
      <div class="text-secondary">{{ user.email }}</div>
    </div>
    <a class="btn btn-outline-secondary" href="{% url 'portal-recharge-records' %}">充值记录</a>
  </div>

  <div class="row g-3">
    <div class="col-md-4">
      <div class="metric">
        <div class="text-secondary small">当前点数</div>
        <div class="display-6 fw-semibold">{{ balance.points_balance }}</div>
      </div>
    </div>
    <div class="col-md-4">
      <div class="metric">
        <div class="text-secondary small">充值总额</div>
        <div class="display-6 fw-semibold">{{ recharge_total_amount|floatformat:2 }}</div>
      </div>
    </div>
    <div class="col-md-4">
      <div class="metric">
        <div class="text-secondary small">入账点数</div>
        <div class="display-6 fw-semibold">{{ recharge_points_total }}</div>
      </div>
    </div>
  </div>

  <section class="cmhub-surface">
    <h2 class="h5 mb-3">发起充值</h2>
    <form method="post" class="row g-3 align-items-end" novalidate>
      {% csrf_token %}
      {% if form.non_field_errors %}
        <div class="col-12">
          <div class="alert alert-danger mb-0">{{ form.non_field_errors|striptags }}</div>
        </div>
      {% endif %}
      <div class="col-md-5">
        <label class="form-label" for="{{ form.amount.id_for_label }}">{{ form.amount.label }}</label>
        {{ form.amount }}
        {% if form.amount.errors %}
          <div class="text-danger small mt-1">{{ form.amount.errors|striptags }}</div>
        {% endif %}
      </div>
      <div class="col-md-4">
        <div class="form-label">{{ form.pay_method.label }}</div>
        <div class="d-flex gap-3 flex-wrap">
          {% for radio in form.pay_method %}
            <div class="form-check">
              {{ radio.tag }}
              <label class="form-check-label" for="{{ radio.id_for_label }}">{{ radio.choice_label }}</label>
            </div>
          {% endfor %}
        </div>
        {% if form.pay_method.errors %}
          <div class="text-danger small mt-1">{{ form.pay_method.errors|striptags }}</div>
        {% endif %}
      </div>
      <div class="col-md-3">
        <button class="btn btn-primary w-100" type="submit">创建订单</button>
      </div>
    </form>
  </section>

  {% if current_order %}
    <section
      class="cmhub-surface"
      data-recharge-order
      data-order-no="{{ current_order.order_no }}"
      data-status="{{ current_order.status }}"
      data-code-url="{{ current_order.code_url }}"
      data-status-url="{% url 'api-recharge-status' %}"
    >
      <div class="d-flex justify-content-between align-items-start gap-3 flex-wrap mb-3">
        <div>
          <h2 class="h5 mb-1">待支付订单</h2>
          <div class="text-secondary small">订单号：<code>{{ current_order.order_no }}</code></div>
        </div>
        <span class="badge text-bg-secondary" id="recharge-status-badge">{{ current_order.status }}</span>
      </div>

      {% if is_mock_payment_mode %}
        <div class="alert alert-warning" role="alert">
          当前为支付测试模式。下方二维码只用于联调订单创建、页面渲染和状态轮询，不能使用微信或支付宝真实付款。
        </div>
      {% endif %}

      <div class="row g-4 align-items-start">
        <div class="col-md-5">
          <canvas id="recharge-qr" class="border rounded bg-white p-2" width="240" height="240"></canvas>
          <div id="recharge-qr-fallback" class="d-none mt-3">
            <label class="form-label" for="recharge-code-url">支付票据</label>
            <textarea id="recharge-code-url" class="form-control font-monospace key-value" rows="4" readonly>{{ current_order.code_url }}</textarea>
          </div>
        </div>
        <div class="col-md-7">
          <dl class="row mb-0">
            <dt class="col-sm-4">金额</dt>
            <dd class="col-sm-8">{{ current_order.amount_money|floatformat:2 }} {{ current_order.currency }}</dd>
            <dt class="col-sm-4">预计到账</dt>
            <dd class="col-sm-8">{{ current_order.points_granted }} 点</dd>
            <dt class="col-sm-4">支付方式</dt>
            <dd class="col-sm-8">{{ current_order.pay_method }}</dd>
            <dt class="col-sm-4">创建时间</dt>
            <dd class="col-sm-8">{{ current_order.created_at|date:"Y-m-d H:i" }}</dd>
            <dt class="col-sm-4">二维码有效期</dt>
            <dd class="col-sm-8">{{ current_order.expires_at|date:"Y-m-d H:i"|default:"-" }}</dd>
            <dt class="col-sm-4">到账时间</dt>
            <dd class="col-sm-8" id="recharge-paid-at">{{ current_order.paid_at|date:"Y-m-d H:i"|default:"-" }}</dd>
          </dl>
          <div class="alert alert-info mt-3 mb-0" id="recharge-poll-hint" aria-live="polite">
            {% if current_order.status == "pending" %}
              正在等待支付结果，页面会自动轮询订单状态。
            {% elif current_order.status == "paid" %}
              订单已到账，余额已刷新。
            {% else %}
              订单当前状态为 {{ current_order.status }}。
            {% endif %}
          </div>
        </div>
      </div>
    </section>
  {% endif %}

  <section class="cmhub-surface">
    <div class="d-flex justify-content-between align-items-center mb-3">
      <h2 class="h5 mb-0">最近充值</h2>
      <a class="btn btn-sm btn-outline-secondary" href="{% url 'portal-recharge-records' %}">全部</a>
    </div>
    {% if recent_recharge_orders %}
      <div class="table-responsive">
        <table class="table align-middle mb-0">
          <thead>
            <tr>
              <th scope="col">订单号</th>
              <th scope="col">金额</th>
              <th scope="col">点数</th>
              <th scope="col">状态</th>
              <th scope="col">创建时间</th>
            </tr>
          </thead>
          <tbody>
            {% for order in recent_recharge_orders %}
              <tr>
                <td><code>{{ order.order_no }}</code></td>
                <td>{{ order.amount_money|floatformat:2 }} {{ order.currency }}</td>
                <td>{{ order.points_granted }}</td>
                <td>{{ order.status }}</td>
                <td>{{ order.created_at|date:"Y-m-d H:i" }}</td>
              </tr>
            {% endfor %}
          </tbody>
        </table>
      </div>
    {% else %}
      <div class="text-secondary">暂无充值记录</div>
    {% endif %}
  </section>
</div>

<script src="{% static 'portal/vendor/qrcode/qrcode.js' %}"></script>
<script>
  (function () {
    const panel = document.querySelector("[data-recharge-order]");
    if (!panel) {
      return;
    }

    const orderNo = panel.dataset.orderNo;
    const codeUrl = panel.dataset.codeUrl;
    const statusUrl = panel.dataset.statusUrl;
    const statusBadge = document.getElementById("recharge-status-badge");
    const paidAt = document.getElementById("recharge-paid-at");
    const pollHint = document.getElementById("recharge-poll-hint");
    const fallback = document.getElementById("recharge-qr-fallback");
    const canvas = document.getElementById("recharge-qr");
    const labels = {
      pending: "pending",
      paid: "paid",
      failed: "failed",
      expired: "expired"
    };

    function showQrFallback() {
      if (fallback) {
        fallback.classList.remove("d-none");
      }
    }

    if (codeUrl && window.QRCode && typeof window.QRCode.toCanvas === "function") {
      window.QRCode.toCanvas(canvas, codeUrl, { width: 240, margin: 1 }, function (error) {
        if (error) {
          showQrFallback();
        }
      });
    } else {
      showQrFallback();
    }

    function setStatus(data) {
      const status = data.status || "pending";
      statusBadge.textContent = labels[status] || status;
      statusBadge.className = status === "paid" ? "badge text-bg-success" : "badge text-bg-secondary";
      paidAt.textContent = data.paid_at ? new Date(data.paid_at).toLocaleString() : "-";
      if (status === "paid") {
        pollHint.textContent = "订单已到账，正在刷新余额。";
      } else if (status === "pending" && data.is_expired) {
        pollHint.textContent = "二维码已过期，可重新发起一笔充值；若已支付，到账仍以回调为准。";
      } else if (status === "pending") {
        pollHint.textContent = "正在等待支付结果，页面会自动轮询订单状态。";
      } else {
        pollHint.textContent = "订单当前状态为 " + status + "。";
      }
    }

    function pollStatus() {
      fetch(statusUrl + "?order_no=" + encodeURIComponent(orderNo), {
        method: "GET",
        credentials: "same-origin",
        headers: { Accept: "application/json" }
      })
        .then(function (response) {
          return response.json().then(function (data) {
            if (!response.ok) {
              throw new Error((data.error && data.error.message) || "status request failed");
            }
            return data;
          });
        })
        .then(function (data) {
          setStatus(data);
          if (data.status === "paid") {
            window.setTimeout(function () {
              window.location.reload();
            }, 1200);
            return;
          }
          if (data.status === "pending") {
            window.setTimeout(pollStatus, 1000);
          }
        })
        .catch(function () {
          pollHint.textContent = "状态查询失败，稍后自动重试。";
          window.setTimeout(pollStatus, 3000);
        });
    }

    if (panel.dataset.status === "pending") {
      window.setTimeout(pollStatus, 1000);
    }
  }());
</script>
{% endblock %}