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

{% block title %}Specimens{% 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 active">Specimens</li>
        </ol>
        <h1 class="page-header mb-0">Specimens</h1>
    </div>
    <div class="ms-auto">
        <div class="btn-group">
            <a href="{% url 'laboratory:specimen_form' %}" class="btn btn-primary">
                <i class="fas fa-plus me-2"></i>New Specimen
            </a>
            <button type="button" class="btn btn-outline-secondary dropdown-toggle dropdown-toggle-split" data-bs-toggle="dropdown">
                <span class="visually-hidden">Toggle Dropdown</span>
            </button>
            <ul class="dropdown-menu">
                <li><a class="dropdown-item" href="#" onclick="exportSpecimens()">
                    <i class="fas fa-download me-2"></i>Export Specimens
                </a></li>
                <li><a class="dropdown-item" href="#" onclick="printLabels()">
                    <i class="fas fa-print me-2"></i>Print Labels
                </a></li>
                <li><hr class="dropdown-divider"></li>
                <li><a class="dropdown-item" href="#" onclick="bulkUpdate()">
                    <i class="fas fa-edit me-2"></i>Bulk Update
                </a></li>
                <li><a class="dropdown-item" href="#" onclick="generateReport()">
                    <i class="fas fa-chart-bar me-2"></i>Generate Report
                </a></li>
            </ul>
        </div>
    </div>
</div>

<!-- Statistics Cards -->
<div class="row mb-4">
    <div class="col-xl-3 col-md-6">
        <div class="card bg-primary text-white">
            <div class="card-body">
                <div class="d-flex align-items-center">
                    <div class="flex-grow-1">
                        <div class="fs-4 fw-bold">{{ total_specimens|default:0 }}</div>
                        <div>Total Specimens</div>
                    </div>
                    <div class="flex-shrink-0">
                        <i class="fas fa-vial fa-2x opacity-75"></i>
                    </div>
                </div>
            </div>
        </div>
    </div>
    <div class="col-xl-3 col-md-6">
        <div class="card bg-success text-white">
            <div class="card-body">
                <div class="d-flex align-items-center">
                    <div class="flex-grow-1">
                        <div class="fs-4 fw-bold">{{ collected_today|default:0 }}</div>
                        <div>Collected Today</div>
                    </div>
                    <div class="flex-shrink-0">
                        <i class="fas fa-calendar-day fa-2x opacity-75"></i>
                    </div>
                </div>
            </div>
        </div>
    </div>
    <div class="col-xl-3 col-md-6">
        <div class="card bg-warning text-white">
            <div class="card-body">
                <div class="d-flex align-items-center">
                    <div class="flex-grow-1">
                        <div class="fs-4 fw-bold">{{ processing|default:0 }}</div>
                        <div>Processing</div>
                    </div>
                    <div class="flex-shrink-0">
                        <i class="fas fa-cog fa-2x opacity-75"></i>
                    </div>
                </div>
            </div>
        </div>
    </div>
    <div class="col-xl-3 col-md-6">
        <div class="card bg-danger text-white">
            <div class="card-body">
                <div class="d-flex align-items-center">
                    <div class="flex-grow-1">
                        <div class="fs-4 fw-bold">{{ rejected|default:0 }}</div>
                        <div>Rejected</div>
                    </div>
                    <div class="flex-shrink-0">
                        <i class="fas fa-times-circle fa-2x opacity-75"></i>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- Filters and Search -->
<div class="card mb-4">
    <div class="card-body">
        <form method="get" class="row g-3">
            <div class="col-md-3">
                <label for="search" class="form-label">Search</label>
                <input type="text" 
                       class="form-control" 
                       id="search" 
                       name="search" 
                       value="{{ request.GET.search }}" 
                       placeholder="Search specimens...">
            </div>
            <div class="col-md-2">
                <label for="specimen_type" class="form-label">Type</label>
                <select class="form-select" id="specimen_type" name="specimen_type">
                    <option value="">All Types</option>
                    <option value="blood" {% if request.GET.specimen_type == 'blood' %}selected{% endif %}>Blood</option>
                    <option value="urine" {% if request.GET.specimen_type == 'urine' %}selected{% endif %}>Urine</option>
                    <option value="sputum" {% if request.GET.specimen_type == 'sputum' %}selected{% endif %}>Sputum</option>
                    <option value="swab" {% if request.GET.specimen_type == 'swab' %}selected{% endif %}>Swab</option>
                    <option value="tissue" {% if request.GET.specimen_type == 'tissue' %}selected{% endif %}>Tissue</option>
                </select>
            </div>
            <div class="col-md-2">
                <label for="status" class="form-label">Status</label>
                <select class="form-select" id="status" name="status">
                    <option value="">All Status</option>
                    <option value="collected" {% if request.GET.status == 'collected' %}selected{% endif %}>Collected</option>
                    <option value="processing" {% if request.GET.status == 'processing' %}selected{% endif %}>Processing</option>
                    <option value="completed" {% if request.GET.status == 'completed' %}selected{% endif %}>Completed</option>
                    <option value="rejected" {% if request.GET.status == 'rejected' %}selected{% endif %}>Rejected</option>
                </select>
            </div>
            <div class="col-md-2">
                <label for="priority" class="form-label">Priority</label>
                <select class="form-select" id="priority" name="priority">
                    <option value="">All Priorities</option>
                    <option value="routine" {% if request.GET.priority == 'routine' %}selected{% endif %}>Routine</option>
                    <option value="urgent" {% if request.GET.priority == 'urgent' %}selected{% endif %}>Urgent</option>
                    <option value="stat" {% if request.GET.priority == 'stat' %}selected{% endif %}>STAT</option>
                </select>
            </div>
            <div class="col-md-2">
                <label for="date_range" class="form-label">Date Range</label>
                <select class="form-select" id="date_range" name="date_range">
                    <option value="">All Dates</option>
                    <option value="today" {% if request.GET.date_range == 'today' %}selected{% endif %}>Today</option>
                    <option value="yesterday" {% if request.GET.date_range == 'yesterday' %}selected{% endif %}>Yesterday</option>
                    <option value="week" {% if request.GET.date_range == 'week' %}selected{% endif %}>This Week</option>
                    <option value="month" {% if request.GET.date_range == 'month' %}selected{% endif %}>This Month</option>
                </select>
            </div>
            <div class="col-md-1">
                <label class="form-label">&nbsp;</label>
                <div class="d-grid">
                    <button type="submit" class="btn btn-primary">
                        <i class="fas fa-search"></i>
                    </button>
                </div>
            </div>
        </form>
    </div>
</div>

<!-- Specimens Table -->
<div class="card">
    <div class="card-header">
        <div class="d-flex align-items-center">
            <h4 class="card-title mb-0">
                <i class="fas fa-list me-2"></i>
                Specimens
                {% if object_list %}
                    <span class="badge bg-secondary ms-2">{{ object_list|length }}</span>
                {% endif %}
            </h4>
            <div class="ms-auto">
                <div class="btn-group btn-group-sm">
                    <button type="button" class="btn btn-outline-secondary" onclick="selectAll()">
                        <i class="fas fa-check-square me-1"></i>Select All
                    </button>
                    <button type="button" class="btn btn-outline-secondary" onclick="clearSelection()">
                        <i class="fas fa-square me-1"></i>Clear
                    </button>
                    <button type="button" class="btn btn-outline-primary" onclick="refreshTable()">
                        <i class="fas fa-sync me-1"></i>Refresh
                    </button>
                </div>
            </div>
        </div>
    </div>
    <div class="card-body p-0">
        {% if object_list %}
            <div class="table-responsive">
                <table class="table table-hover mb-0">
                    <thead class="table-light">
                        <tr>
                            <th width="40">
                                <input type="checkbox" id="selectAllCheckbox" onchange="toggleAll(this)">
                            </th>
                            <th>Specimen ID</th>
                            <th>Patient</th>
                            <th>Type</th>
                            <th>Collection Date</th>
                            <th>Collected By</th>
                            <th>Status</th>
                            <th>Priority</th>
                            <th>Tests</th>
                            <th width="120">Actions</th>
                        </tr>
                    </thead>
                    <tbody>
                        {% for specimen in object_list %}
                        <tr>
                            <td>
                                <input type="checkbox" class="specimen-checkbox" value="{{ specimen.pk }}">
                            </td>
                            <td>
                                <div class="d-flex align-items-center">
                                    <div class="flex-grow-1">
                                        <div class="fw-bold">
                                            <a href="{% url 'laboratory:specimen_detail' specimen.pk %}" class="text-decoration-none">
                                                {{ specimen.specimen_id }}
                                            </a>
                                        </div>
                                        {% if specimen.barcode %}
                                        <div class="small text-muted">{{ specimen.barcode }}</div>
                                        {% endif %}
                                    </div>
                                </div>
                            </td>
                            <td>
                                <div class="d-flex align-items-center">
                                    <div class="flex-grow-1">
                                        <div class="fw-bold">{{ specimen.patient.get_full_name }}</div>
                                        <div class="small text-muted">MRN: {{ specimen.patient.medical_record_number }}</div>
                                    </div>
                                </div>
                            </td>
                            <td>
                                <div class="d-flex align-items-center">
                                    <i class="fas fa-{% if specimen.specimen_type == 'blood' %}tint text-danger{% elif specimen.specimen_type == 'urine' %}flask text-warning{% elif specimen.specimen_type == 'sputum' %}lungs text-info{% else %}vial text-secondary{% endif %} me-2"></i>
                                    {{ specimen.get_specimen_type_display }}
                                </div>
                                {% if specimen.volume %}
                                <div class="small text-muted">{{ specimen.volume }}</div>
                                {% endif %}
                            </td>
                            <td>
                                <div class="fw-bold">{{ specimen.collection_date|date:"M d, Y" }}</div>
                                <div class="small text-muted">{{ specimen.collection_date|date:"g:i A" }}</div>
                            </td>
                            <td>{{ specimen.collected_by.get_full_name }}</td>
                            <td>
                                <span class="badge bg-{% if specimen.status == 'collected' %}success{% elif specimen.status == 'processing' %}warning{% elif specimen.status == 'completed' %}info{% elif specimen.status == 'rejected' %}danger{% else %}secondary{% endif %}">
                                    {{ specimen.get_status_display }}
                                </span>
                                {% if specimen.condition and specimen.condition != 'good' %}
                                    <div class="small text-warning mt-1">
                                        <i class="fas fa-exclamation-triangle me-1"></i>{{ specimen.condition|title }}
                                    </div>
                                {% endif %}
                            </td>
                            <td>
                                <span class="badge bg-{% if specimen.priority == 'stat' %}danger{% elif specimen.priority == 'urgent' %}warning{% else %}primary{% endif %}">
                                    {{ specimen.get_priority_display }}
                                </span>
                                {% if specimen.fasting_status %}
                                    <div class="small text-info mt-1">
                                        <i class="fas fa-utensils me-1"></i>Fasting
                                    </div>
                                {% endif %}
                            </td>
                            <td>
                                {% if specimen.associated_tests_count %}
                                    <span class="badge bg-info">{{ specimen.associated_tests_count }} test{{ specimen.associated_tests_count|pluralize }}</span>
                                {% else %}
                                    <span class="text-muted">No tests</span>
                                {% endif %}
                            </td>
                            <td>
                                <div class="btn-group btn-group-sm">
                                    <a href="{% url 'laboratory:specimen_detail' specimen.pk %}" 
                                       class="btn btn-outline-primary" 
                                       title="View Details">
                                        <i class="fas fa-eye"></i>
                                    </a>
                                    <a href="{% url 'laboratory:specimen_form' specimen.pk %}" 
                                       class="btn btn-outline-secondary" 
                                       title="Edit">
                                        <i class="fas fa-edit"></i>
                                    </a>
                                    <button type="button" 
                                            class="btn btn-outline-info" 
                                            onclick="printLabel({{ specimen.pk }})"
                                            title="Print Label">
                                        <i class="fas fa-print"></i>
                                    </button>
                                    <a href="{% url 'laboratory:specimen_confirm_delete' specimen.pk %}" 
                                       class="btn btn-outline-danger" 
                                       title="Delete">
                                        <i class="fas fa-trash"></i>
                                    </a>
                                </div>
                            </td>
                        </tr>
                        {% endfor %}
                    </tbody>
                </table>
            </div>

            <!-- Pagination -->
            {% if is_paginated %}
            <div class="card-footer">
                <div class="d-flex justify-content-between align-items-center">
                    <div>
                        Showing {{ page_obj.start_index }} to {{ page_obj.end_index }} of {{ paginator.count }} specimens
                    </div>
                    <nav>
                        <ul class="pagination pagination-sm mb-0">
                            {% if page_obj.has_previous %}
                                <li class="page-item">
                                    <a class="page-link" href="?page=1{% if request.GET.search %}&search={{ request.GET.search }}{% endif %}{% if request.GET.specimen_type %}&specimen_type={{ request.GET.specimen_type }}{% endif %}">First</a>
                                </li>
                                <li class="page-item">
                                    <a class="page-link" href="?page={{ page_obj.previous_page_number }}{% if request.GET.search %}&search={{ request.GET.search }}{% endif %}{% if request.GET.specimen_type %}&specimen_type={{ request.GET.specimen_type }}{% endif %}">Previous</a>
                                </li>
                            {% endif %}
                            
                            <li class="page-item active">
                                <span class="page-link">{{ page_obj.number }}</span>
                            </li>
                            
                            {% if page_obj.has_next %}
                                <li class="page-item">
                                    <a class="page-link" href="?page={{ page_obj.next_page_number }}{% if request.GET.search %}&search={{ request.GET.search }}{% endif %}{% if request.GET.specimen_type %}&specimen_type={{ request.GET.specimen_type }}{% endif %}">Next</a>
                                </li>
                                <li class="page-item">
                                    <a class="page-link" href="?page={{ paginator.num_pages }}{% if request.GET.search %}&search={{ request.GET.search }}{% endif %}{% if request.GET.specimen_type %}&specimen_type={{ request.GET.specimen_type }}{% endif %}">Last</a>
                                </li>
                            {% endif %}
                        </ul>
                    </nav>
                </div>
            </div>
            {% endif %}

            <!-- Bulk Actions -->
            <div class="card-footer bg-light" id="bulkActions" style="display: none;">
                <div class="d-flex align-items-center">
                    <div class="me-3">
                        <span id="selectedCount">0</span> specimen(s) selected
                    </div>
                    <div class="btn-group btn-group-sm">
                        <button type="button" class="btn btn-success" onclick="bulkUpdateStatus('processing')">
                            <i class="fas fa-play me-1"></i>Start Processing
                        </button>
                        <button type="button" class="btn btn-info" onclick="bulkUpdateStatus('completed')">
                            <i class="fas fa-check me-1"></i>Mark Complete
                        </button>
                        <button type="button" class="btn btn-warning" onclick="bulkUpdateStatus('on_hold')">
                            <i class="fas fa-pause me-1"></i>Put on Hold
                        </button>
                        <button type="button" class="btn btn-outline-primary" onclick="bulkPrintLabels()">
                            <i class="fas fa-print me-1"></i>Print Labels
                        </button>
                        <button type="button" class="btn btn-outline-secondary" onclick="bulkExport()">
                            <i class="fas fa-download me-1"></i>Export
                        </button>
                        <button type="button" class="btn btn-danger" onclick="bulkDelete()">
                            <i class="fas fa-trash me-1"></i>Delete
                        </button>
                    </div>
                </div>
            </div>
        {% else %}
            <div class="text-center py-5">
                <i class="fas fa-vial fa-3x text-muted mb-3"></i>
                <h5>No Specimens Found</h5>
                <p class="text-muted">No specimens match your current filters.</p>
                <a href="{% url 'laboratory:specimen_form' %}" class="btn btn-primary">
                    <i class="fas fa-plus me-2"></i>Collect First Specimen
                </a>
            </div>
        {% endif %}
    </div>
</div>

<script>
document.addEventListener('DOMContentLoaded', function() {
    updateBulkActions();
    
    // Auto-refresh every 30 seconds for real-time updates
    setInterval(function() {
        if (document.visibilityState === 'visible') {
            refreshTable();
        }
    }, 30000);
});

function toggleAll(checkbox) {
    const checkboxes = document.querySelectorAll('.specimen-checkbox');
    checkboxes.forEach(cb => cb.checked = checkbox.checked);
    updateBulkActions();
}

function selectAll() {
    const checkboxes = document.querySelectorAll('.specimen-checkbox');
    checkboxes.forEach(cb => cb.checked = true);
    document.getElementById('selectAllCheckbox').checked = true;
    updateBulkActions();
}

function clearSelection() {
    const checkboxes = document.querySelectorAll('.specimen-checkbox');
    checkboxes.forEach(cb => cb.checked = false);
    document.getElementById('selectAllCheckbox').checked = false;
    updateBulkActions();
}

function updateBulkActions() {
    const checkboxes = document.querySelectorAll('.specimen-checkbox:checked');
    const count = checkboxes.length;
    const bulkActions = document.getElementById('bulkActions');
    const selectedCount = document.getElementById('selectedCount');
    
    if (count > 0) {
        bulkActions.style.display = 'block';
        selectedCount.textContent = count;
    } else {
        bulkActions.style.display = 'none';
    }
}

// Add event listeners to checkboxes
document.addEventListener('change', function(e) {
    if (e.target.classList.contains('specimen-checkbox')) {
        updateBulkActions();
    }
});

function getSelectedSpecimens() {
    const checkboxes = document.querySelectorAll('.specimen-checkbox:checked');
    return Array.from(checkboxes).map(cb => cb.value);
}

function bulkUpdateStatus(status) {
    const selected = getSelectedSpecimens();
    if (selected.length === 0) return;
    
    const statusText = status.replace('_', ' ').replace(/\b\w/g, l => l.toUpperCase());
    if (confirm(`Update status to "${statusText}" for ${selected.length} selected specimen(s)?`)) {
        // In a real implementation, this would make an AJAX call
        console.log('Updating status to', status, 'for specimens:', selected);
        location.reload();
    }
}

function bulkPrintLabels() {
    const selected = getSelectedSpecimens();
    if (selected.length === 0) return;
    
    // In a real implementation, this would print labels for selected specimens
    console.log('Printing labels for specimens:', selected);
    alert(`Printing labels for ${selected.length} specimen(s).`);
}

function bulkExport() {
    const selected = getSelectedSpecimens();
    if (selected.length === 0) return;
    
    // In a real implementation, this would export selected specimens
    console.log('Exporting specimens:', selected);
    alert('Export functionality would be implemented here.');
}

function bulkDelete() {
    const selected = getSelectedSpecimens();
    if (selected.length === 0) return;
    
    if (confirm(`Are you sure you want to delete ${selected.length} selected specimen(s)? This action cannot be undone.`)) {
        // In a real implementation, this would make an AJAX call
        console.log('Deleting specimens:', selected);
        location.reload();
    }
}

function printLabel(specimenId) {
    // In a real implementation, this would print a single specimen label
    console.log('Printing label for specimen:', specimenId);
    alert('Label printing functionality would be implemented here.');
}

function refreshTable() {
    // In a real implementation, this would refresh the table via AJAX
    location.reload();
}

function exportSpecimens() {
    // In a real implementation, this would export all specimens
    alert('Export all specimens functionality would be implemented here.');
}

function printLabels() {
    // In a real implementation, this would print labels for all visible specimens
    alert('Print all labels functionality would be implemented here.');
}

function bulkUpdate() {
    // In a real implementation, this would open a bulk update modal
    alert('Bulk update functionality would be implemented here.');
}

function generateReport() {
    // In a real implementation, this would generate a specimens report
    alert('Generate report functionality would be implemented here.');
}
</script>
{% endblock %}