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

{% block title %}Reference Range - {{ reference_range.test_type.name }}{% endblock %}

{% block extra_css %}
<style>
.range-info-card {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 0.375rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.range-visual {
    background: #fff;
    border: 2px solid #dee2e6;
    border-radius: 0.375rem;
    padding: 2rem;
    margin: 1rem 0;
    text-align: center;
}

.range-bar {
    height: 40px;
    border-radius: 20px;
    position: relative;
    margin: 2rem 0;
    background: linear-gradient(to right, 
        #dc3545 0%, #dc3545 10%,
        #ffc107 10%, #ffc107 20%,
        #28a745 20%, #28a745 80%,
        #ffc107 80%, #ffc107 90%,
        #dc3545 90%, #dc3545 100%);
}

.range-marker {
    position: absolute;
    top: -10px;
    width: 2px;
    height: 60px;
    background: #000;
}

.range-marker::after {
    content: attr(data-value);
    position: absolute;
    top: 65px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.75rem;
    font-weight: bold;
    white-space: nowrap;
}

.range-legend {
    display: flex;
    justify-content: space-between;
    margin-top: 1rem;
    font-size: 0.875rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.legend-color {
    width: 20px;
    height: 20px;
    border-radius: 4px;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.stat-item {
    background: #fff;
    border: 1px solid #dee2e6;
    border-radius: 0.375rem;
    padding: 1rem;
    text-align: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: bold;
    color: #495057;
}

.stat-label {
    font-size: 0.875rem;
    color: #6c757d;
    margin-top: 0.25rem;
}

.history-timeline {
    position: relative;
    padding-left: 2rem;
}

.history-timeline::before {
    content: '';
    position: absolute;
    left: 0.75rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #dee2e6;
}

.timeline-item {
    position: relative;
    margin-bottom: 1.5rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2.25rem;
    top: 0.5rem;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #007bff;
    border: 2px solid #fff;
    box-shadow: 0 0 0 2px #dee2e6;
}

.timeline-content {
    background: #fff;
    border: 1px solid #dee2e6;
    border-radius: 0.375rem;
    padding: 1rem;
}

.badge-custom {
    padding: 0.375rem 0.75rem;
    border-radius: 0.375rem;
    font-weight: 500;
}

.badge-adult { background: #d4edda; color: #155724; }
.badge-pediatric { background: #d1ecf1; color: #0c5460; }
.badge-geriatric { background: #fff3cd; color: #856404; }
.badge-male { background: #cce5ff; color: #004085; }
.badge-female { background: #f8d7da; color: #721c24; }
.badge-both { background: #e2e3e5; color: #383d41; }

@media (max-width: 768px) {
    .range-visual {
        padding: 1rem;
    }
    
    .stat-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
    
    .range-bar {
        height: 30px;
        margin: 1rem 0;
    }
    
    .range-marker {
        height: 50px;
    }
}
</style>
{% endblock %}

{% block content %}
<div id="content" class="app-content">
    <!-- Page Header -->
    <div class="d-flex align-items-center mb-3">
        <div>
            <ol class="breadcrumb">
                <li class="breadcrumb-item"><a href="{% url 'core:dashboard' %}">Dashboard</a></li>
                <li class="breadcrumb-item"><a href="{% url 'laboratory:dashboard' %}">Laboratory</a></li>
                <li class="breadcrumb-item"><a href="{% url 'laboratory:reference_range_list' %}">Reference Ranges</a></li>
                <li class="breadcrumb-item active">{{ reference_range.test_type.name }}</li>
            </ol>
            <h1 class="page-header mb-0">
                <i class="fas fa-ruler me-2"></i>{{ reference_range.test_type.name }}
            </h1>
        </div>
        <div class="ms-auto">
            <div class="btn-group">
                <a href="{% url 'laboratory:reference_range_list' %}" class="btn btn-outline-secondary">
                    <i class="fas fa-arrow-left me-1"></i>Back to List
                </a>
                <a href="{% url 'laboratory:reference_range_update' reference_range.pk %}" class="btn btn-outline-primary">
                    <i class="fas fa-edit me-1"></i>Edit
                </a>
                <button type="button" class="btn btn-outline-info" onclick="duplicateRange()">
                    <i class="fas fa-copy me-1"></i>Duplicate
                </button>
                <button type="button" class="btn btn-outline-success" onclick="printRange()">
                    <i class="fas fa-print me-1"></i>Print
                </button>
            </div>
        </div>
    </div>

    <div class="row">
        <div class="col-lg-8">
            <!-- Range Information -->
            <div class="range-info-card">
                <div class="row">
                    <div class="col-md-6">
                        <h5 class="mb-3">
                            <i class="fas fa-flask me-2"></i>Test Information
                        </h5>
                        <div class="mb-2">
                            <strong>Test Name:</strong> {{ reference_range.test_type.name }}
                        </div>
                        <div class="mb-2">
                            <strong>Test Code:</strong> {{ reference_range.test_type.code }}
                        </div>
                        <div class="mb-2">
                            <strong>Category:</strong> {{ reference_range.test_type.category.name }}
                        </div>
                        <div class="mb-2">
                            <strong>Method:</strong> {{ reference_range.test_type.method|default:"Not specified" }}
                        </div>
                    </div>
                    <div class="col-md-6">
                        <h5 class="mb-3">
                            <i class="fas fa-users me-2"></i>Demographics
                        </h5>
                        <div class="mb-2">
                            <strong>Age Group:</strong> 
                            <span class="badge-custom badge-{{ reference_range.age_group }}">
                                {{ reference_range.get_age_group_display }}
                            </span>
                        </div>
                        {% if reference_range.age_min or reference_range.age_max %}
                        <div class="mb-2">
                            <strong>Age Range:</strong>
                            {% if reference_range.age_min %}{{ reference_range.age_min }}{% endif %}
                            {% if reference_range.age_min and reference_range.age_max %} - {% endif %}
                            {% if reference_range.age_max %}{{ reference_range.age_max }}{% endif %}
                            {{ reference_range.age_unit }}
                        </div>
                        {% endif %}
                        <div class="mb-2">
                            <strong>Gender:</strong>
                            <span class="badge-custom badge-{{ reference_range.gender }}">
                                {{ reference_range.get_gender_display }}
                            </span>
                        </div>
                        <div class="mb-2">
                            <strong>Status:</strong>
                            {% if reference_range.is_active %}
                                <span class="badge bg-success">Active</span>
                            {% else %}
                                <span class="badge bg-danger">Inactive</span>
                            {% endif %}
                        </div>
                    </div>
                </div>
            </div>

            <!-- Range Visualization -->
            <div class="card mb-4">
                <div class="card-header">
                    <h5 class="card-title mb-0">
                        <i class="fas fa-chart-bar me-2"></i>Reference Range Visualization
                    </h5>
                </div>
                <div class="card-body">
                    <div class="range-visual">
                        <h6 class="mb-3">{{ reference_range.test_type.name }} Reference Range</h6>
                        
                        <div class="stat-grid">
                            {% if reference_range.critical_low %}
                            <div class="stat-item">
                                <div class="stat-value text-danger">{{ reference_range.critical_low }}</div>
                                <div class="stat-label">Critical Low</div>
                            </div>
                            {% endif %}
                            
                            {% if reference_range.min_value %}
                            <div class="stat-item">
                                <div class="stat-value text-warning">{{ reference_range.min_value }}</div>
                                <div class="stat-label">Normal Low</div>
                            </div>
                            {% endif %}
                            
                            {% if reference_range.max_value %}
                            <div class="stat-item">
                                <div class="stat-value text-warning">{{ reference_range.max_value }}</div>
                                <div class="stat-label">Normal High</div>
                            </div>
                            {% endif %}
                            
                            {% if reference_range.critical_high %}
                            <div class="stat-item">
                                <div class="stat-value text-danger">{{ reference_range.critical_high }}</div>
                                <div class="stat-label">Critical High</div>
                            </div>
                            {% endif %}
                        </div>
                        
                        {% if reference_range.min_value and reference_range.max_value %}
                        <div class="range-bar" id="rangeBar">
                            <!-- Range markers will be added by JavaScript -->
                        </div>
                        
                        <div class="range-legend">
                            <div class="legend-item">
                                <div class="legend-color" style="background: #dc3545;"></div>
                                <span>Critical</span>
                            </div>
                            <div class="legend-item">
                                <div class="legend-color" style="background: #ffc107;"></div>
                                <span>Abnormal</span>
                            </div>
                            <div class="legend-item">
                                <div class="legend-color" style="background: #28a745;"></div>
                                <span>Normal</span>
                            </div>
                        </div>
                        {% endif %}
                        
                        <div class="mt-3">
                            <strong>Unit:</strong> {{ reference_range.unit|default:"Not specified" }}
                        </div>
                    </div>
                </div>
            </div>

            <!-- Additional Information -->
            <div class="card mb-4">
                <div class="card-header">
                    <h5 class="card-title mb-0">
                        <i class="fas fa-info-circle me-2"></i>Additional Information
                    </h5>
                </div>
                <div class="card-body">
                    <div class="row">
                        <div class="col-md-6">
                            <h6>Clinical Information</h6>
                            {% if reference_range.clinical_significance %}
                            <div class="mb-3">
                                <strong>Clinical Significance:</strong>
                                <p class="mt-1">{{ reference_range.clinical_significance }}</p>
                            </div>
                            {% endif %}
                            
                            {% if reference_range.interpretation_notes %}
                            <div class="mb-3">
                                <strong>Interpretation Notes:</strong>
                                <p class="mt-1">{{ reference_range.interpretation_notes }}</p>
                            </div>
                            {% endif %}
                        </div>
                        <div class="col-md-6">
                            <h6>Technical Information</h6>
                            {% if reference_range.methodology %}
                            <div class="mb-3">
                                <strong>Methodology:</strong>
                                <p class="mt-1">{{ reference_range.methodology }}</p>
                            </div>
                            {% endif %}
                            
                            {% if reference_range.reference_source %}
                            <div class="mb-3">
                                <strong>Reference Source:</strong>
                                <p class="mt-1">{{ reference_range.reference_source }}</p>
                            </div>
                            {% endif %}
                        </div>
                    </div>
                    
                    {% if reference_range.conditions %}
                    <div class="mt-3">
                        <h6>Special Conditions</h6>
                        <p>{{ reference_range.conditions }}</p>
                    </div>
                    {% endif %}
                </div>
            </div>
        </div>

        <!-- Sidebar -->
        <div class="col-lg-4">
            <!-- Quick Stats -->
            <div class="card mb-4">
                <div class="card-header">
                    <h5 class="card-title mb-0">
                        <i class="fas fa-chart-pie me-2"></i>Usage Statistics
                    </h5>
                </div>
                <div class="card-body">
                    <div class="stat-item mb-3">
                        <div class="stat-value">{{ usage_stats.total_tests }}</div>
                        <div class="stat-label">Total Tests (Last 30 days)</div>
                    </div>
                    <div class="stat-item mb-3">
                        <div class="stat-value">{{ usage_stats.normal_results }}%</div>
                        <div class="stat-label">Normal Results</div>
                    </div>
                    <div class="stat-item mb-3">
                        <div class="stat-value">{{ usage_stats.abnormal_results }}%</div>
                        <div class="stat-label">Abnormal Results</div>
                    </div>
                    <div class="stat-item">
                        <div class="stat-value">{{ usage_stats.critical_results }}%</div>
                        <div class="stat-label">Critical Results</div>
                    </div>
                </div>
            </div>

            <!-- Related Ranges -->
            <div class="card mb-4">
                <div class="card-header">
                    <h5 class="card-title mb-0">
                        <i class="fas fa-link me-2"></i>Related Ranges
                    </h5>
                </div>
                <div class="card-body">
                    {% for related_range in related_ranges %}
                    <div class="d-flex align-items-center mb-2">
                        <div class="flex-grow-1">
                            <div class="fw-bold">{{ related_range.test_type.name }}</div>
                            <small class="text-muted">
                                {{ related_range.get_age_group_display }} - {{ related_range.get_gender_display }}
                            </small>
                        </div>
                        <div class="text-end">
                            <a href="{% url 'laboratory:reference_range_detail' related_range.pk %}" 
                               class="btn btn-outline-primary btn-sm">
                                <i class="fas fa-eye"></i>
                            </a>
                        </div>
                    </div>
                    {% empty %}
                    <div class="text-muted text-center py-3">
                        <i class="fas fa-link fa-2x mb-2"></i>
                        <p>No related ranges</p>
                    </div>
                    {% endfor %}
                </div>
            </div>

            <!-- Change History -->
            <div class="card">
                <div class="card-header">
                    <h5 class="card-title mb-0">
                        <i class="fas fa-history me-2"></i>Change History
                    </h5>
                </div>
                <div class="card-body">
                    <div class="history-timeline">
                        {% for change in change_history %}
                        <div class="timeline-item">
                            <div class="timeline-content">
                                <div class="d-flex justify-content-between align-items-start mb-2">
                                    <strong>{{ change.action }}</strong>
                                    <small class="text-muted">{{ change.created_at|date:"M d, Y H:i" }}</small>
                                </div>
                                <div class="mb-2">
                                    <strong>By:</strong> {{ change.user.get_full_name|default:change.user.username }}
                                </div>
                                {% if change.changes %}
                                <div class="small">
                                    <strong>Changes:</strong>
                                    <ul class="mb-0">
                                        {% for field, values in change.changes.items %}
                                        <li>{{ field }}: {{ values.old }} → {{ values.new }}</li>
                                        {% endfor %}
                                    </ul>
                                </div>
                                {% endif %}
                                {% if change.notes %}
                                <div class="small mt-2">
                                    <strong>Notes:</strong> {{ change.notes }}
                                </div>
                                {% endif %}
                            </div>
                        </div>
                        {% empty %}
                        <div class="text-muted text-center py-3">
                            <i class="fas fa-history fa-2x mb-2"></i>
                            <p>No change history</p>
                        </div>
                        {% endfor %}
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block extra_js %}
<script>
$(document).ready(function() {
    // Initialize range visualization
    initializeRangeVisualization();
});

function initializeRangeVisualization() {
    const rangeBar = document.getElementById('rangeBar');
    if (!rangeBar) return;
    
    const criticalLow = {{ reference_range.critical_low|default:"null" }};
    const minValue = {{ reference_range.min_value|default:"null" }};
    const maxValue = {{ reference_range.max_value|default:"null" }};
    const criticalHigh = {{ reference_range.critical_high|default:"null" }};
    
    // Calculate the full range for positioning
    const values = [criticalLow, minValue, maxValue, criticalHigh].filter(v => v !== null);
    if (values.length < 2) return;
    
    const minRange = Math.min(...values);
    const maxRange = Math.max(...values);
    const rangeSpan = maxRange - minRange;
    
    // Add markers for each value
    if (criticalLow !== null) {
        addRangeMarker(rangeBar, criticalLow, minRange, rangeSpan, 'Critical Low');
    }
    
    if (minValue !== null) {
        addRangeMarker(rangeBar, minValue, minRange, rangeSpan, 'Normal Low');
    }
    
    if (maxValue !== null) {
        addRangeMarker(rangeBar, maxValue, minRange, rangeSpan, 'Normal High');
    }
    
    if (criticalHigh !== null) {
        addRangeMarker(rangeBar, criticalHigh, minRange, rangeSpan, 'Critical High');
    }
}

function addRangeMarker(container, value, minRange, rangeSpan, label) {
    const position = ((value - minRange) / rangeSpan) * 100;
    
    const marker = document.createElement('div');
    marker.className = 'range-marker';
    marker.style.left = position + '%';
    marker.setAttribute('data-value', value + ' ' + '{{ reference_range.unit|default:"" }}');
    marker.title = label + ': ' + value;
    
    container.appendChild(marker);
}

function duplicateRange() {
    if (confirm('Create a duplicate of this reference range?')) {
        $.ajax({
            url: '{% url "laboratory:duplicate_reference_range" %}',
            method: 'POST',
            data: {
                'range_id': '{{ reference_range.pk }}',
                'csrfmiddlewaretoken': '{{ csrf_token }}'
            },
            success: function(response) {
                if (response.success) {
                    window.location.href = '{% url "laboratory:reference_range_detail" %}' + response.new_range_id + '/';
                } else {
                    alert('Error duplicating range: ' + response.error);
                }
            },
            error: function() {
                alert('Error duplicating range');
            }
        });
    }
}

function printRange() {
    window.print();
}
</script>

<style>
@media print {
    .btn-group, .breadcrumb {
        display: none !important;
    }
    
    .page-header {
        margin-bottom: 1rem !important;
    }
    
    .card {
        border: 1px solid #000 !important;
        break-inside: avoid;
    }
    
    .range-visual {
        border: 2px solid #000 !important;
    }
}
</style>
{% endblock %}