{% extends 'base.html' %}
{% load static %}

{% block title %}Delete Donor - {{ donor.full_name }}{% endblock %}

{% block content %}
<!-- BEGIN breadcrumb -->
<ol class="breadcrumb float-xl-end">
    <li class="breadcrumb-item"><a href="{% url 'core:dashboard' %}">Home</a></li>
    <li class="breadcrumb-item"><a href="{% url 'blood_bank:dashboard' %}">Blood Bank</a></li>
    <li class="breadcrumb-item"><a href="{% url 'blood_bank:donor_list' %}">Donors</a></li>
    <li class="breadcrumb-item"><a href="{% url 'blood_bank:donor_detail' donor.id %}">{{ donor.donor_id }}</a></li>
    <li class="breadcrumb-item active">Delete</li>
</ol>
<!-- END breadcrumb -->

<!-- BEGIN page-header -->
<h1 class="page-header">Delete Donor <small>{{ donor.full_name }}</small></h1>
<!-- END page-header -->

<!-- BEGIN panel -->
<div class="panel panel-inverse">
    <div class="panel-heading">
        <h4 class="panel-title">
            <i class="fa fa-exclamation-triangle text-danger"></i> Confirm Donor Deletion
        </h4>
    </div>
    <div class="panel-body">
        <div class="alert alert-danger">
            <h5><i class="fa fa-exclamation-triangle"></i> Warning</h5>
            <p>You are about to permanently delete this donor record. This action cannot be undone.</p>
        </div>

        <!-- BEGIN donor info -->
        <div class="row mb-4">
            <div class="col-md-6">
                <div class="card">
                    <div class="card-header">
                        <h5 class="card-title mb-0">Donor Information</h5>
                    </div>
                    <div class="card-body">
                        <table class="table table-borderless">
                            <tr>
                                <td class="fw-bold">Donor ID:</td>
                                <td>{{ donor.donor_id }}</td>
                            </tr>
                            <tr>
                                <td class="fw-bold">Name:</td>
                                <td>{{ donor.full_name }}</td>
                            </tr>
                            <tr>
                                <td class="fw-bold">Blood Group:</td>
                                <td>
                                    <span class="badge bg-primary">{{ donor.blood_group.display_name }}</span>
                                </td>
                            </tr>
                            <tr>
                                <td class="fw-bold">Phone:</td>
                                <td>{{ donor.phone }}</td>
                            </tr>
                            <tr>
                                <td class="fw-bold">Registration Date:</td>
                                <td>{{ donor.registration_date|date:"M d, Y" }}</td>
                            </tr>
                            <tr>
                                <td class="fw-bold">Status:</td>
                                <td>
                                    <span class="badge bg-{% if donor.status == 'active' %}success{% else %}secondary{% endif %}">
                                        {{ donor.get_status_display }}
                                    </span>
                                </td>
                            </tr>
                        </table>
                    </div>
                </div>
            </div>
            <div class="col-md-6">
                <div class="card">
                    <div class="card-header">
                        <h5 class="card-title mb-0">Impact Assessment</h5>
                    </div>
                    <div class="card-body">
                        <div class="alert alert-info">
                            <h6><i class="fa fa-info-circle"></i> Related Records</h6>
                            <ul class="mb-0">
                                <li><strong>{{ donor.total_donations }}</strong> blood unit(s) collected</li>
                                <li><strong>{{ donor.blood_units.count }}</strong> blood unit record(s)</li>
                                {% if donor.blood_units.filter(status='available').exists %}
                                <li class="text-warning">
                                    <i class="fa fa-exclamation-triangle"></i> 
                                    Has active blood units in inventory
                                </li>
                                {% endif %}
                            </ul>
                        </div>

                        {% if donor.blood_units.filter(status='available').exists %}
                        <div class="alert alert-warning">
                            <h6><i class="fa fa-exclamation-triangle"></i> Active Blood Units</h6>
                            <p class="mb-0">This donor has blood units currently available in inventory. 
                            Deleting this donor will affect inventory tracking.</p>
                        </div>
                        {% endif %}

                        {% if donor.total_donations > 0 %}
                        <div class="alert alert-info">
                            <h6><i class="fa fa-history"></i> Donation History</h6>
                            <p class="mb-0">This donor has a donation history. Consider marking as 
                            "inactive" instead of deleting to preserve historical data.</p>
                        </div>
                        {% endif %}
                    </div>
                </div>
            </div>
        </div>
        <!-- END donor info -->

        <!-- BEGIN deletion options -->
        <div class="card mb-4">
            <div class="card-header">
                <h5 class="card-title mb-0">Deletion Options</h5>
            </div>
            <div class="card-body">
                <form method="post">
                    {% csrf_token %}
                    
                    <div class="mb-3">
                        <label class="form-label">Reason for Deletion <span class="text-danger">*</span></label>
                        <select class="form-select" name="deletion_reason" required>
                            <option value="">Select reason...</option>
                            <option value="duplicate_record">Duplicate Record</option>
                            <option value="data_error">Data Entry Error</option>
                            <option value="donor_request">Donor Request</option>
                            <option value="privacy_compliance">Privacy Compliance</option>
                            <option value="other">Other</option>
                        </select>
                    </div>

                    <div class="mb-3">
                        <label class="form-label">Additional Notes</label>
                        <textarea class="form-control" name="deletion_notes" rows="3" 
                                  placeholder="Provide additional details about the deletion..."></textarea>
                    </div>

                    <div class="mb-3">
                        <div class="form-check">
                            <input class="form-check-input" type="checkbox" name="archive_data" id="archiveData" checked>
                            <label class="form-check-label" for="archiveData">
                                Archive donation history before deletion
                            </label>
                            <div class="form-text">Keep anonymized donation records for statistical purposes</div>
                        </div>
                    </div>

                    <div class="mb-3">
                        <div class="form-check">
                            <input class="form-check-input" type="checkbox" name="confirm_deletion" id="confirmDeletion" required>
                            <label class="form-check-label" for="confirmDeletion">
                                <strong>I understand that this action cannot be undone</strong>
                            </label>
                        </div>
                    </div>

                    <!-- BEGIN form actions -->
                    <div class="d-flex justify-content-between">
                        <div>
                            <a href="{% url 'blood_bank:donor_detail' donor.id %}" class="btn btn-secondary">
                                <i class="fa fa-arrow-left"></i> Cancel
                            </a>
                            <a href="{% url 'blood_bank:donor_update' donor.id %}" class="btn btn-warning">
                                <i class="fa fa-pause"></i> Mark as Inactive Instead
                            </a>
                        </div>
                        <button type="submit" class="btn btn-danger" id="deleteBtn" disabled>
                            <i class="fa fa-trash"></i> Delete Donor Permanently
                        </button>
                    </div>
                    <!-- END form actions -->
                </form>
            </div>
        </div>
        <!-- END deletion options -->

        <!-- BEGIN alternative actions -->
        <div class="card">
            <div class="card-header">
                <h5 class="card-title mb-0">Alternative Actions</h5>
            </div>
            <div class="card-body">
                <p class="text-muted">Consider these alternatives to permanent deletion:</p>
                <div class="row">
                    <div class="col-md-6">
                        <div class="d-grid">
                            <a href="{% url 'blood_bank:donor_update' donor.id %}" class="btn btn-outline-warning">
                                <i class="fa fa-pause"></i> Mark as Inactive
                            </a>
                        </div>
                        <small class="text-muted">Preserves historical data while preventing new donations</small>
                    </div>
                    <div class="col-md-6">
                        <div class="d-grid">
                            <a href="{% url 'blood_bank:donor_update' donor.id %}" class="btn btn-outline-info">
                                <i class="fa fa-edit"></i> Update Information
                            </a>
                        </div>
                        <small class="text-muted">Correct any data errors without deletion</small>
                    </div>
                </div>
            </div>
        </div>
        <!-- END alternative actions -->
    </div>
</div>
<!-- END panel -->
{% endblock %}

{% block js %}
<script>
$(document).ready(function() {
    // Enable delete button only when confirmation is checked
    $('#confirmDeletion').on('change', function() {
        $('#deleteBtn').prop('disabled', !this.checked);
    });

    // Form submission confirmation
    $('form').on('submit', function(e) {
        var reason = $('select[name="deletion_reason"]').val();
        if (!reason) {
            e.preventDefault();
            Swal.fire({
                icon: 'error',
                title: 'Missing Information',
                text: 'Please select a reason for deletion.',
                confirmButtonText: 'OK'
            });
            return;
        }

        e.preventDefault();
        
        Swal.fire({
            title: 'Final Confirmation',
            html: `
                <div class="text-start">
                    <p><strong>You are about to permanently delete:</strong></p>
                    <ul>
                        <li>Donor: {{ donor.full_name }} ({{ donor.donor_id }})</li>
                        <li>Reason: ${$('select[name="deletion_reason"] option:selected').text()}</li>
                    </ul>
                    <p class="text-danger"><strong>This action cannot be undone!</strong></p>
                </div>
            `,
            icon: 'warning',
            showCancelButton: true,
            confirmButtonColor: '#d33',
            cancelButtonColor: '#3085d6',
            confirmButtonText: 'Yes, Delete Permanently',
            cancelButtonText: 'Cancel'
        }).then((result) => {
            if (result.isConfirmed) {
                // Show loading
                Swal.fire({
                    title: 'Deleting Donor...',
                    text: 'Please wait while we process the deletion.',
                    allowOutsideClick: false,
                    didOpen: () => {
                        Swal.showLoading();
                    }
                });
                
                // Submit the form
                this.submit();
            }
        });
    });
});
</script>
{% endblock %}