{% extends "pos/base.html" %}
{% block title %}Delete Deal #{{ deal.installment_no }}{% endblock %}

{% block content %}
<div class="container-fluid py-3">

  <div class="row justify-content-center">
    <div class="col-lg-6">

      <!-- Header -->
      <div class="d-flex align-items-center mb-3">
        <a href="{% url 'installments:deal_detail' deal.id %}"
           class="btn btn-sm btn-outline-secondary mr-2">
          <i class="fa fa-arrow-left"></i>
        </a>
        <h4 class="mb-0 font-weight-bold text-danger">
          <i class="fa fa-exclamation-triangle mr-2"></i>
          Confirm Delete
        </h4>
      </div>

      {% if messages %}
        {% for msg in messages %}
          <div class="alert alert-{{ msg.tags }} alert-dismissible fade show py-2">
            {{ msg }}<button type="button" class="close" data-dismiss="alert"><span>&times;</span></button>
          </div>
        {% endfor %}
      {% endif %}

      <!-- Warning card -->
      {% if payment_count %}
      <!-- Blocked -->
      <div class="card border-danger shadow-sm">
        <div class="card-header bg-danger text-white font-weight-bold">
          <i class="fa fa-ban mr-2"></i> Cannot Delete — Payments Exist
        </div>
        <div class="card-body">
          <p class="mb-2">
            Deal <strong>#{{ deal.installment_no }}</strong> has
            <strong>{{ payment_count }} received payment(s)</strong>.
          </p>
          <p class="text-muted small mb-3">
            You must reverse all installment payments (Phase C feature)
            before this deal can be deleted.
          </p>
          <a href="{% url 'installments:deal_detail' deal.id %}"
             class="btn btn-secondary">
            <i class="fa fa-arrow-left mr-1"></i> Go Back
          </a>
        </div>
      </div>

      {% else %}
      <!-- Confirm delete -->
      <div class="card border-warning shadow-sm">
        <div class="card-header bg-warning font-weight-bold">
          <i class="fa fa-trash mr-2"></i> Delete Installment Deal #{{ deal.installment_no }}
        </div>
        <div class="card-body">

          <p class="mb-3">
            You are about to permanently delete this deal. The following will be
            <strong>irreversibly reversed</strong>:
          </p>

          <ul class="list-group list-group-flush mb-3">
            <li class="list-group-item d-flex align-items-start py-2">
              <i class="fa fa-times-circle text-danger mr-2 mt-1"></i>
              <span>
                <strong>Stock restored</strong> —
                {{ products_count }} product line(s) will be returned to inventory.
              </span>
            </li>
            <li class="list-group-item d-flex align-items-start py-2">
              <i class="fa fa-times-circle text-danger mr-2 mt-1"></i>
              <span>
                <strong>Customer balance reversed</strong> —
                <em>{{ customer.name|default:"Customer" }}</em>'s ledger entry removed.
              </span>
            </li>
            <li class="list-group-item d-flex align-items-start py-2">
              <i class="fa fa-times-circle text-danger mr-2 mt-1"></i>
              <span>
                <strong>Bank entry reversed</strong> —
                Down payment of
                <strong>{{ deal.down_payment|floatformat:0 }}</strong>
                removed from bank account.
              </span>
            </li>
            <li class="list-group-item d-flex align-items-start py-2">
              <i class="fa fa-times-circle text-danger mr-2 mt-1"></i>
              <span>
                <strong>All deal records deleted</strong> —
                Schedule, witnesses, products, and deal header.
              </span>
            </li>
          </ul>

          <!-- Deal summary for context -->
          <div class="alert alert-light border small mb-3">
            <div class="row">
              <div class="col-6"><strong>Customer:</strong> {{ customer.name|default:"—" }}</div>
              <div class="col-6"><strong>Plan:</strong> {{ deal.plan.plan_name|default:"Custom" }}</div>
              <div class="col-6"><strong>Total Price:</strong> {{ deal.total_price|floatformat:0 }}</div>
              <div class="col-6"><strong>Down Payment:</strong> {{ deal.down_payment|floatformat:0 }}</div>
              <div class="col-6"><strong>Sale Date:</strong> {{ deal.sale_date }}</div>
              <div class="col-6"><strong>Duration:</strong> {{ deal.duration_months }} months</div>
            </div>
          </div>

          <p class="text-danger font-weight-bold mb-3">
            <i class="fa fa-warning mr-1"></i>
            This action cannot be undone.
          </p>

          <div class="d-flex">
            <a href="{% url 'installments:deal_detail' deal.id %}"
               class="btn btn-secondary mr-2">
              <i class="fa fa-arrow-left mr-1"></i> Cancel
            </a>
            <form method="post" style="display:inline;">
              {% csrf_token %}
              <button type="submit" class="btn btn-danger">
                <i class="fa fa-trash mr-1"></i>
                Yes, Delete Deal #{{ deal.installment_no }}
              </button>
            </form>
          </div>

        </div>
      </div>
      {% endif %}

    </div>
  </div>

</div>
{% endblock %}