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

{% block title %}Delete Specimen{% endblock %}

{% block content %}
<div class="d-flex align-items-center mb-3">
    <div>
        <ol class="breadcrumb">
            <li class="breadcrumb-item"><a href="{% url 'laboratory:dashboard' %}">Laboratory</a></li>
            <li class="breadcrumb-item"><a href="{% url 'laboratory:specimen_list' %}">Specimens</a></li>
            <li class="breadcrumb-item"><a href="{% url 'laboratory:specimen_detail' object.pk %}">{{ object.specimen_id }}</a></li>
            <li class="breadcrumb-item active">Delete</li>
        </ol>
        <h1 class="page-header mb-0">Delete Specimen</h1>
    </div>
    <div class="ms-auto">
        <a href="{% url 'laboratory:specimen_detail' object.pk %}" class="btn btn-secondary">
            <i class="fas fa-arrow-left me-2"></i>Back to Specimen
        </a>
    </div>
</div>

<div class="row justify-content-center">
    <div class="col-xl-8">
        <div class="card">
            <div class="card-header bg-danger text-white">
                <h4 class="card-title mb-0">
                    <i class="fas fa-exclamation-triangle me-2"></i>
                    Confirm Specimen Deletion
                </h4>
            </div>
            <div class="card-body">
                <div class="alert alert-warning">
                    <h5 class="alert-heading">
                        <i class="fas fa-exclamation-triangle me-2"></i>
                        Are you sure you want to delete this specimen?
                    </h5>
                    <p class="mb-0">
                        This action cannot be undone. The specimen and all associated data will be permanently removed from the system.
                    </p>
                </div>

                <!-- Specimen Details -->
                <div class="row mb-4">
                    <div class="col-md-6">
                        <div class="card bg-light">
                            <div class="card-body">
                                <h6 class="card-title">
                                    <i class="fas fa-user-injured me-2"></i>Patient Information
                                </h6>
                                <div class="mb-2">
                                    <strong>Patient:</strong> {{ object.patient.get_full_name }}
                                </div>
                                <div class="mb-2">
                                    <strong>MRN:</strong> {{ object.patient.medical_record_number }}
                                </div>
                                <div class="mb-2">
                                    <strong>DOB:</strong> {{ object.patient.date_of_birth|date:"M d, Y" }}
                                </div>
                                <div>
                                    <strong>Age:</strong> {{ object.patient.age }} years
                                </div>
                            </div>
                        </div>
                    </div>
                    <div class="col-md-6">
                        <div class="card bg-light">
                            <div class="card-body">
                                <h6 class="card-title">
                                    <i class="fas fa-vial me-2"></i>Specimen Information
                                </h6>
                                <div class="mb-2">
                                    <strong>Specimen ID:</strong> {{ object.specimen_id }}
                                </div>
                                <div class="mb-2">
                                    <strong>Type:</strong> {{ object.get_specimen_type_display }}
                                </div>
                                <div class="mb-2">
                                    <strong>Collection Date:</strong> {{ object.collection_date|date:"M d, Y g:i A" }}
                                </div>
                                <div>
                                    <strong>Status:</strong> 
                                    <span class="badge bg-{% if object.status == 'collected' %}success{% elif object.status == 'processing' %}warning{% elif object.status == 'completed' %}info{% elif object.status == 'rejected' %}danger{% else %}secondary{% endif %}">
                                        {{ object.get_status_display }}
                                    </span>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Collection Information -->
                <div class="row mb-4">
                    <div class="col-12">
                        <div class="card bg-light">
                            <div class="card-body">
                                <h6 class="card-title">
                                    <i class="fas fa-clipboard-check me-2"></i>Collection Information
                                </h6>
                                <div class="row">
                                    <div class="col-md-6">
                                        <div class="mb-2">
                                            <strong>Collected By:</strong> {{ object.collected_by.get_full_name }}
                                        </div>
                                        <div class="mb-2">
                                            <strong>Collection Site:</strong> {{ object.collection_site|default:"Not specified" }}
                                        </div>
                                        <div>
                                            <strong>Volume:</strong> {{ object.volume|default:"Not specified" }}
                                        </div>
                                    </div>
                                    <div class="col-md-6">
                                        <div class="mb-2">
                                            <strong>Container:</strong> {{ object.container_type|default:"Standard" }}
                                        </div>
                                        <div class="mb-2">
                                            <strong>Priority:</strong> {{ object.get_priority_display }}
                                        </div>
                                        <div>
                                            <strong>Condition:</strong> {{ object.condition|default:"Good" }}
                                        </div>
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Associated Tests Warning -->
                {% if associated_tests %}
                <div class="row mb-4">
                    <div class="col-12">
                        <div class="card border-warning">
                            <div class="card-header bg-warning text-dark">
                                <h6 class="card-title mb-0">
                                    <i class="fas fa-exclamation-triangle me-2"></i>
                                    Associated Tests Warning
                                </h6>
                            </div>
                            <div class="card-body">
                                <div class="alert alert-warning">
                                    <strong>Warning:</strong> This specimen has {{ associated_tests|length }} associated test(s). 
                                    Deleting this specimen will affect these tests and may impact patient care.
                                </div>
                                
                                <div class="table-responsive">
                                    <table class="table table-sm">
                                        <thead>
                                            <tr>
                                                <th>Test Name</th>
                                                <th>Status</th>
                                                <th>Ordered Date</th>
                                                <th>Result Status</th>
                                            </tr>
                                        </thead>
                                        <tbody>
                                            {% for test in associated_tests %}
                                            <tr>
                                                <td>{{ test.test.name }}</td>
                                                <td>
                                                    <span class="badge bg-{% if test.status == 'completed' %}success{% elif test.status == 'in_progress' %}warning{% else %}info{% endif %}">
                                                        {{ test.get_status_display }}
                                                    </span>
                                                </td>
                                                <td>{{ test.ordered_date|date:"M d, Y" }}</td>
                                                <td>
                                                    {% if test.result %}
                                                        <span class="badge bg-success">Result Available</span>
                                                    {% else %}
                                                        <span class="badge bg-secondary">Pending</span>
                                                    {% endif %}
                                                </td>
                                            </tr>
                                            {% endfor %}
                                        </tbody>
                                    </table>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
                {% endif %}

                <!-- Collection Notes -->
                {% if object.collection_notes %}
                <div class="row mb-4">
                    <div class="col-12">
                        <div class="card bg-light">
                            <div class="card-body">
                                <h6 class="card-title">
                                    <i class="fas fa-comment me-2"></i>Collection Notes
                                </h6>
                                <div class="alert alert-info mb-0">
                                    {{ object.collection_notes }}
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
                {% endif %}

                <!-- Deletion Form -->
                <form method="post">
                    {% csrf_token %}
                    
                    <div class="mb-3">
                        <label for="deletion_reason" class="form-label">
                            <strong>Reason for Deletion *</strong>
                        </label>
                        <select class="form-select" id="deletion_reason" name="deletion_reason" required>
                            <option value="">Select a reason</option>
                            <option value="collection_error">Collection Error</option>
                            <option value="insufficient_volume">Insufficient Volume</option>
                            <option value="contaminated">Contaminated Sample</option>
                            <option value="hemolyzed">Hemolyzed Sample</option>
                            <option value="clotted">Clotted Sample</option>
                            <option value="expired">Expired Sample</option>
                            <option value="patient_request">Patient Request</option>
                            <option value="physician_request">Physician Request</option>
                            <option value="duplicate_collection">Duplicate Collection</option>
                            <option value="wrong_patient">Wrong Patient</option>
                            <option value="quality_control">Quality Control Issue</option>
                            <option value="regulatory_compliance">Regulatory Compliance</option>
                            <option value="other">Other</option>
                        </select>
                    </div>

                    <div class="mb-3">
                        <label for="deletion_notes" class="form-label">
                            <strong>Additional Notes</strong>
                        </label>
                        <textarea class="form-control" 
                                  id="deletion_notes" 
                                  name="deletion_notes" 
                                  rows="3" 
                                  placeholder="Provide additional details about why this specimen is being deleted..."></textarea>
                        <div class="form-text">
                            These notes will be recorded for audit purposes and quality assurance.
                        </div>
                    </div>

                    {% if associated_tests %}
                    <div class="mb-3">
                        <label for="test_action" class="form-label">
                            <strong>Action for Associated Tests *</strong>
                        </label>
                        <select class="form-select" id="test_action" name="test_action" required>
                            <option value="">Select action</option>
                            <option value="cancel_tests">Cancel all associated tests</option>
                            <option value="request_recollection">Request specimen recollection</option>
                            <option value="transfer_to_existing">Transfer tests to existing specimen</option>
                            <option value="manual_review">Require manual review</option>
                        </select>
                        <div class="form-text">
                            Choose what should happen to the {{ associated_tests|length }} associated test(s).
                        </div>
                    </div>
                    {% endif %}

                    <div class="form-check mb-3">
                        <input class="form-check-input" 
                               type="checkbox" 
                               id="confirm_deletion" 
                               name="confirm_deletion" 
                               required>
                        <label class="form-check-label" for="confirm_deletion">
                            I understand that this action cannot be undone and confirm the deletion of this specimen.
                        </label>
                    </div>

                    <div class="form-check mb-3">
                        <input class="form-check-input" 
                               type="checkbox" 
                               id="notify_staff" 
                               name="notify_staff">
                        <label class="form-check-label" for="notify_staff">
                            Notify relevant laboratory staff about this specimen deletion.
                        </label>
                    </div>

                    <div class="form-check mb-3">
                        <input class="form-check-input" 
                               type="checkbox" 
                               id="notify_physician" 
                               name="notify_physician">
                        <label class="form-check-label" for="notify_physician">
                            Notify the ordering physician about this specimen deletion.
                        </label>
                    </div>

                    {% if object.status in 'processing,completed' %}
                    <div class="form-check mb-3">
                        <input class="form-check-input" 
                               type="checkbox" 
                               id="quality_review" 
                               name="quality_review">
                        <label class="form-check-label" for="quality_review">
                            Trigger quality assurance review for this deletion.
                        </label>
                    </div>
                    {% endif %}

                    <div class="alert alert-info">
                        <h6 class="alert-heading">
                            <i class="fas fa-info-circle me-2"></i>What happens when you delete this specimen?
                        </h6>
                        <ul class="mb-0">
                            <li>The specimen record will be permanently removed from the system</li>
                            <li>All tracking history and collection data will be lost</li>
                            {% if associated_tests %}
                            <li>Associated tests will be affected based on your selection above</li>
                            <li>Test results may need to be invalidated or transferred</li>
                            {% endif %}
                            <li>Quality metrics and laboratory statistics will be updated</li>
                            <li>This action will be logged in the audit trail</li>
                            <li>Inventory tracking may be affected if containers are tracked</li>
                            <li>Billing records may need manual adjustment</li>
                            <li>Patient reports and medical records may be impacted</li>
                        </ul>
                    </div>

                    <div class="d-flex justify-content-between">
                        <a href="{% url 'laboratory:specimen_detail' object.pk %}" class="btn btn-secondary">
                            <i class="fas fa-times me-2"></i>Cancel
                        </a>
                        <button type="submit" class="btn btn-danger" onclick="return confirmDeletion()">
                            <i class="fas fa-trash me-2"></i>Delete Specimen
                        </button>
                    </div>
                </form>
            </div>
        </div>

        <!-- Quality Control Warning -->
        {% if object.condition in 'hemolyzed,clotted,contaminated,rejected' %}
        <div class="card mt-4">
            <div class="card-header bg-warning text-dark">
                <h5 class="card-title mb-0">
                    <i class="fas fa-exclamation-triangle me-2"></i>
                    Quality Control Notice
                </h5>
            </div>
            <div class="card-body">
                <div class="alert alert-warning">
                    <strong>Quality Issue:</strong> This specimen has been flagged with condition: {{ object.condition }}. 
                    Deleting specimens with quality issues may require additional documentation for compliance.
                </div>
                
                <div class="alert alert-info">
                    <strong>Recommendation:</strong> Consider documenting the quality issue in the laboratory quality 
                    management system before deletion to maintain proper quality records.
                </div>
            </div>
        </div>
        {% endif %}

        <!-- Processing Status Warning -->
        {% if object.status in 'processing,completed' %}
        <div class="card mt-4">
            <div class="card-header bg-info text-white">
                <h5 class="card-title mb-0">
                    <i class="fas fa-cog me-2"></i>
                    Processing Status Notice
                </h5>
            </div>
            <div class="card-body">
                <div class="alert alert-info">
                    <strong>Processing Status:</strong> This specimen has status "{{ object.get_status_display }}" 
                    and may have been processed or analyzed. Deleting processed specimens may require supervisor approval.
                </div>
                
                {% if object.status == 'completed' %}
                <div class="alert alert-warning">
                    <strong>Completed Specimen:</strong> This specimen has been marked as completed and may have 
                    results associated with it. Consider the impact on patient care before deletion.
                </div>
                {% endif %}
            </div>
        </div>
        {% endif %}

        <!-- Related Information -->
        <div class="card mt-4">
            <div class="card-header">
                <h5 class="card-title">
                    <i class="fas fa-link me-2"></i>
                    Related Information
                </h5>
            </div>
            <div class="card-body">
                <div class="row">
                    <div class="col-md-6">
                        <h6>Specimen Details</h6>
                        <ul class="list-unstyled">
                            <li><strong>Specimen ID:</strong> {{ object.specimen_id }}</li>
                            <li><strong>Internal ID:</strong> {{ object.pk }}</li>
                            <li><strong>Barcode:</strong> {{ object.barcode|default:"Not assigned" }}</li>
                            <li><strong>Created:</strong> {{ object.created_at|date:"M d, Y g:i A" }}</li>
                        </ul>
                    </div>
                    <div class="col-md-6">
                        <h6>System Information</h6>
                        <ul class="list-unstyled">
                            <li><strong>Patient ID:</strong> {{ object.patient.pk }}</li>
                            <li><strong>Collector ID:</strong> {{ object.collected_by.pk }}</li>
                            <li><strong>Current Location:</strong> {{ object.current_location|default:"Lab" }}</li>
                            <li><strong>Last Updated:</strong> {{ object.updated_at|date:"M d, Y g:i A" }}</li>
                        </ul>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<script>
function confirmDeletion() {
    const reason = document.getElementById('deletion_reason').value;
    const confirmed = document.getElementById('confirm_deletion').checked;
    
    if (!reason) {
        alert('Please select a reason for deletion.');
        return false;
    }
    
    if (!confirmed) {
        alert('Please confirm that you understand this action cannot be undone.');
        return false;
    }
    
    {% if associated_tests %}
    const testAction = document.getElementById('test_action').value;
    if (!testAction) {
        alert('Please select an action for the associated tests.');
        return false;
    }
    {% endif %}
    
    const specimenId = "{{ object.specimen_id }}";
    const patientName = "{{ object.patient.get_full_name }}";
    const specimenType = "{{ object.get_specimen_type_display }}";
    const collectionDate = "{{ object.collection_date|date:'M d, Y g:i A' }}";
    
    const message = `Are you absolutely sure you want to delete this specimen?\n\nPatient: ${patientName}\nSpecimen: ${specimenType}\nID: ${specimenId}\nCollected: ${collectionDate}\n\n{% if associated_tests %}This will affect {{ associated_tests|length }} associated test(s).\n\n{% endif %}This action cannot be undone and may affect patient care and reporting.`;
    
    return confirm(message);
}

document.addEventListener('DOMContentLoaded', function() {
    // Auto-focus on deletion reason
    document.getElementById('deletion_reason').focus();
    
    // Show/hide additional notes based on reason
    const reasonSelect = document.getElementById('deletion_reason');
    const notesTextarea = document.getElementById('deletion_notes');
    
    reasonSelect.addEventListener('change', function() {
        if (this.value === 'other') {
            notesTextarea.required = true;
            notesTextarea.placeholder = 'Please specify the reason for deletion...';
        } else {
            notesTextarea.required = false;
            notesTextarea.placeholder = 'Provide additional details about why this specimen is being deleted...';
        }
    });
});
</script>
{% endblock %}