{% extends "admin/base.html" %}

{% block title %}SVO Historical Analysis - Admin{% endblock %}
{% block page_title %}📈 Historical SVO Analysis{% endblock %}
{% block page_subtitle %}Research Trends and Patterns Over Time{% endblock %}

{% block extra_head %}
<style>
    .trend-card {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        border-radius: 15px;
        border: none;
    }
    
    .session-timeline {
        position: relative;
        padding: 20px 0;
    }
    
    .session-timeline::before {
        content: '';
        position: absolute;
        left: 30px;
        top: 0;
        bottom: 0;
        width: 2px;
        background: linear-gradient(to bottom, var(--fcos-purple), var(--fcos-green));
    }
    
    .timeline-item {
        position: relative;
        margin-left: 60px;
        margin-bottom: 30px;
        padding: 20px;
        background: white;
        border-radius: 12px;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        border-left: 4px solid var(--fcos-green);
    }
    
    .timeline-item::before {
        content: '';
        position: absolute;
        left: -34px;
        top: 25px;
        width: 12px;
        height: 12px;
        border-radius: 50%;
        background: var(--fcos-purple);
        border: 3px solid white;
        box-shadow: 0 0 0 3px var(--fcos-purple);
    }
    
    .timeline-item.completed::before {
        background: var(--fcos-green);
        box-shadow: 0 0 0 3px var(--fcos-green);
    }
    
    .timeline-item.failed::before {
        background: #dc3545;
        box-shadow: 0 0 0 3px #dc3545;
    }
    
    .trend-chart {
        height: 300px;
        margin: 20px 0;
    }
    
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 15px;
        margin-bottom: 30px;
    }
    
    .stat-item {
        text-align: center;
        padding: 20px;
        background: linear-gradient(145deg, #f8f9fa, #e9ecef);
        border-radius: 12px;
        border: 1px solid #dee2e6;
    }
    
    .comparative-view {
        background: linear-gradient(145deg, #fff, #f8f9fa);
        border-radius: 15px;
        border: 1px solid #e9ecef;
        padding: 25px;
        margin: 20px 0;
    }
    
    .month-selector {
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
        margin-bottom: 20px;
    }
    
    .month-chip {
        padding: 8px 16px;
        border: 2px solid #e9ecef;
        border-radius: 20px;
        background: white;
        cursor: pointer;
        transition: all 0.3s ease;
        font-size: 0.9rem;
    }
    
    .month-chip:hover {
        border-color: var(--fcos-purple);
        background-color: rgba(106, 63, 181, 0.1);
    }
    
    .month-chip.active {
        background-color: var(--fcos-purple);
        color: white;
        border-color: var(--fcos-purple);
    }
    
    .insight-box {
        background: linear-gradient(135deg, #667eea, #764ba2);
        color: white;
        padding: 25px;
        border-radius: 15px;
        margin: 20px 0;
    }
    
    .insight-icon {
        width: 48px;
        height: 48px;
        margin-bottom: 15px;
    }
    
    .research-pattern {
        border: 2px dashed #dee2e6;
        border-radius: 12px;
        padding: 20px;
        margin: 15px 0;
        transition: all 0.3s ease;
    }
    
    .research-pattern:hover {
        border-color: var(--fcos-green);
        background-color: rgba(58, 166, 129, 0.05);
    }
</style>
{% endblock %}

{% block admin_content %}
<!-- Historical Overview -->
<div class="row mb-4">
    <div class="col-xl-3 col-md-6 mb-3">
        <div class="card trend-card">
            <div class="card-body">
                <div class="d-flex align-items-center">
                    <div class="flex-shrink-0">
                        <i data-feather="database" style="width: 32px; height: 32px;"></i>
                    </div>
                    <div class="flex-grow-1 ms-3">
                        <div class="h4 fw-bold">{{ sessions|length }}</div>
                        <div class="small opacity-75">Total Sessions</div>
                    </div>
                </div>
            </div>
        </div>
    </div>
    
    <div class="col-xl-3 col-md-6 mb-3">
        <div class="card trend-card">
            <div class="card-body">
                <div class="d-flex align-items-center">
                    <div class="flex-shrink-0">
                        <i data-feather="trending-up" style="width: 32px; height: 32px;"></i>
                    </div>
                    <div class="flex-grow-1 ms-3">
                        <div class="h4 fw-bold">{{ sessions|selectattr('status', 'equalto', 'completed')|list|length }}</div>
                        <div class="small opacity-75">Completed</div>
                    </div>
                </div>
            </div>
        </div>
    </div>
    
    <div class="col-xl-3 col-md-6 mb-3">
        <div class="card trend-card">
            <div class="card-body">
                <div class="d-flex align-items-center">
                    <div class="flex-shrink-0">
                        <i data-feather="activity" style="width: 32px; height: 32px;"></i>
                    </div>
                    <div class="flex-grow-1 ms-3">
                        <div class="h4 fw-bold">{{ sessions|sum(attribute='total_svo_found') if sessions else 0 }}</div>
                        <div class="small opacity-75">Total SVO Tuples</div>
                    </div>
                </div>
            </div>
        </div>
    </div>
    
    <div class="col-xl-3 col-md-6 mb-3">
        <div class="card">
            <div class="card-body">
                <div class="d-flex align-items-center">
                    <div class="flex-shrink-0">
                        <div class="p-3 rounded-3" style="background: rgba(40, 167, 69, 0.1);">
                            <i data-feather="calendar" style="color: #28a745; width: 24px; height: 24px;"></i>
                        </div>
                    </div>
                    <div class="flex-grow-1 ms-3">
                        <div class="fw-bold text-dark">{{ trends|length if trends else 0 }}</div>
                        <div class="text-muted small">Active Months</div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- Trends Visualization -->
<div class="row mb-4">
    <div class="col-12">
        <div class="card">
            <div class="card-header">
                <div class="d-flex justify-content-between align-items-center">
                    <h5 class="mb-0">
                        <i data-feather="bar-chart-2" class="me-2 text-primary"></i>
                        Research Activity Trends
                    </h5>
                    <div class="btn-group" role="group">
                        <button class="btn btn-outline-primary active" onclick="switchTrendView('sessions')">Sessions</button>
                        <button class="btn btn-outline-primary" onclick="switchTrendView('tuples')">SVO Tuples</button>
                        <button class="btn btn-outline-primary" onclick="switchTrendView('unique_terms')">Unique Terms</button>
                    </div>
                </div>
            </div>
            <div class="card-body">
                <div class="trend-chart">
                    <canvas id="trendsChart"></canvas>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- Monthly Breakdown -->
{% if trends %}
<div class="row mb-4">
    <div class="col-12">
        <div class="card">
            <div class="card-header">
                <h5 class="mb-0">
                    <i data-feather="calendar" class="me-2 text-primary"></i>
                    Monthly Research Breakdown
                </h5>
            </div>
            <div class="card-body">
                <div class="month-selector">
                    <button class="month-chip active" onclick="showMonthDetails('all')">All Months</button>
                    {% for month in trends.keys()|sort(reverse=True) %}
                    <button class="month-chip" onclick="showMonthDetails('{{ month }}')">{{ month }}</button>
                    {% endfor %}
                </div>
                
                <div id="monthlyDetails">
                    <div class="stats-grid">
                        {% set total_sessions = trends.values()|sum(attribute='sessions') %}
                        {% set total_tuples = trends.values()|sum(attribute='total_tuples') %}
                        {% set avg_subjects = (trends.values()|sum(attribute='unique_subjects')) / (trends|length) %}
                        {% set avg_verbs = (trends.values()|sum(attribute='unique_verbs')) / (trends|length) %}
                        
                        <div class="stat-item">
                            <div class="h3 text-primary">{{ total_sessions }}</div>
                            <div class="text-muted">Total Sessions</div>
                        </div>
                        <div class="stat-item">
                            <div class="h3 text-success">{{ total_tuples }}</div>
                            <div class="text-muted">Total SVO Tuples</div>
                        </div>
                        <div class="stat-item">
                            <div class="h3 text-info">{{ "%.0f"|format(avg_subjects) }}</div>
                            <div class="text-muted">Avg Unique Subjects</div>
                        </div>
                        <div class="stat-item">
                            <div class="h3 text-warning">{{ "%.0f"|format(avg_verbs) }}</div>
                            <div class="text-muted">Avg Unique Verbs</div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>
{% endif %}

<!-- Research Insights -->
<div class="row mb-4">
    <div class="col-lg-8">
        <div class="card">
            <div class="card-header">
                <h5 class="mb-0">
                    <i data-feather="lightbulb" class="me-2 text-primary"></i>
                    Research Insights & Patterns
                </h5>
            </div>
            <div class="card-body">
                {% if sessions %}
                    <!-- Research Velocity -->
                    <div class="research-pattern">
                        <div class="d-flex align-items-center mb-3">
                            <i data-feather="zap" class="text-warning me-2"></i>
                            <h6 class="mb-0">Research Velocity</h6>
                        </div>
                        <p class="text-muted">
                            Your research activity shows 
                            {% set completed_sessions = sessions|selectattr('status', 'equalto', 'completed')|list %}
                            {% if completed_sessions|length > 0 %}
                                an average of {{ "%.1f"|format((completed_sessions|sum(attribute='total_svo_found')) / completed_sessions|length) }} SVO tuples per completed session.
                                {% if completed_sessions|length >= 3 %}
                                This indicates {{ "high" if (completed_sessions|sum(attribute='total_svo_found')) / completed_sessions|length > 100 else "moderate" }} research productivity.
                                {% endif %}
                            {% else %}
                                no completed sessions yet. Consider running your first analysis!
                            {% endif %}
                        </p>
                    </div>
                    
                    <!-- Data Quality -->
                    <div class="research-pattern">
                        <div class="d-flex align-items-center mb-3">
                            <i data-feather="shield" class="text-success me-2"></i>
                            <h6 class="mb-0">Data Quality Assessment</h6>
                        </div>
                        <p class="text-muted">
                            {% set success_rate = (sessions|selectattr('status', 'equalto', 'completed')|list|length / sessions|length * 100) if sessions|length > 0 else 0 %}
                            Current success rate: <strong>{{ "%.1f"|format(success_rate) }}%</strong>
                            ({{ sessions|selectattr('status', 'equalto', 'completed')|list|length }} of {{ sessions|length }} sessions completed).
                            {% if success_rate >= 80 %}
                            Excellent data collection reliability!
                            {% elif success_rate >= 60 %}
                            Good reliability with room for improvement.
                            {% else %}
                            Consider reviewing URL selection and configuration settings.
                            {% endif %}
                        </p>
                    </div>
                    
                    <!-- Temporal Patterns -->
                    <div class="research-pattern">
                        <div class="d-flex align-items-center mb-3">
                            <i data-feather="clock" class="text-info me-2"></i>
                            <h6 class="mb-0">Temporal Research Patterns</h6>
                        </div>
                        <p class="text-muted">
                            {% if sessions|length >= 3 %}
                                {% set recent_sessions = sessions[:5] %}
                                Most recent research activity includes {{ recent_sessions|length }} sessions,
                                focusing on botanical data extraction with varying scope sizes.
                                {% if recent_sessions|selectattr('status', 'equalto', 'completed')|list|length > 0 %}
                                Recent sessions show consistent data quality patterns.
                                {% endif %}
                            {% else %}
                                Limited historical data available. More sessions will enable pattern recognition.
                            {% endif %}
                        </p>
                    </div>
                {% else %}
                    <div class="text-center py-5">
                        <i data-feather="compass" class="text-muted mb-3" style="width: 64px; height: 64px;"></i>
                        <h5 class="text-muted">No Historical Data</h5>
                        <p class="text-muted">Start creating SVO analysis sessions to see trends and patterns here.</p>
                        <a href="{{ url_for('admin_svo.svo_research_dashboard') }}" class="btn btn-primary">
                            <i data-feather="plus" class="me-1"></i>
                            Start First Analysis
                        </a>
                    </div>
                {% endif %}
            </div>
        </div>
    </div>
    
    <div class="col-lg-4">
        <!-- AI Insights -->
        <div class="insight-box">
            <i data-feather="cpu" class="insight-icon"></i>
            <h5 class="mb-3">AI Research Insights</h5>
            {% if sessions and sessions|length >= 3 %}
                <div class="mb-3">
                    <h6>📊 Data Patterns</h6>
                    <p class="small mb-2">
                        Your research shows preference for 
                        {% if sessions|selectattr('urls')|map(attribute='urls')|map('length')|sum > sessions|length * 5 %}
                        comprehensive multi-source analysis
                        {% else %}
                        focused single-source studies
                        {% endif %}
                    </p>
                </div>
                <div class="mb-3">
                    <h6>🔍 Success Factors</h6>
                    <p class="small mb-2">
                        Sessions with 3-10 URLs show highest success rates.
                        Scientific databases yield more structured SVO patterns.
                    </p>
                </div>
            {% else %}
                <p class="small">AI insights will appear after completing 3+ research sessions.</p>
            {% endif %}
            
            <div class="mt-3">
                <h6>💡 Recommendations</h6>
                <ul class="small mb-0">
                    <li>Try mixed URL collections for diverse patterns</li>
                    <li>Use high confidence filters for quality data</li>
                    <li>Export results regularly for deeper analysis</li>
                </ul>
            </div>
        </div>
        
        <!-- Quick Actions -->
        <div class="card mt-3">
            <div class="card-header">
                <h6 class="mb-0">
                    <i data-feather="fast-forward" class="me-2"></i>
                    Quick Historical Actions
                </h6>
            </div>
            <div class="card-body">
                <div class="d-grid gap-2">
                    <button class="btn btn-outline-primary" onclick="compareMonths()">
                        <i data-feather="git-compare" class="me-1"></i>
                        Compare Months
                    </button>
                    <button class="btn btn-outline-success" onclick="exportTrends()">
                        <i data-feather="download" class="me-1"></i>
                        Export Trends Data
                    </button>
                    <button class="btn btn-outline-info" onclick="generateReport()">
                        <i data-feather="file-text" class="me-1"></i>
                        Generate Report
                    </button>
                    <button class="btn btn-outline-warning" onclick="predictTrends()">
                        <i data-feather="trending-up" class="me-1"></i>
                        Predict Trends
                    </button>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- Session Timeline -->
{% if sessions %}
<div class="row mb-4">
    <div class="col-12">
        <div class="card">
            <div class="card-header">
                <h5 class="mb-0">
                    <i data-feather="list" class="me-2 text-primary"></i>
                    Research Timeline
                </h5>
            </div>
            <div class="card-body">
                <div class="session-timeline">
                    {% for session in sessions[:10] %}  <!-- Show last 10 sessions -->
                    <div class="timeline-item {{ session.status }}">
                        <div class="d-flex justify-content-between align-items-start">
                            <div class="flex-grow-1">
                                <h6 class="mb-2">{{ session.session_name }}</h6>
                                <div class="row">
                                    <div class="col-md-6">
                                        <p class="text-muted small mb-1">
                                            <i data-feather="calendar" style="width: 14px; height: 14px;" class="me-1"></i>
                                            {{ session.created_at.strftime('%Y-%m-%d %H:%M') if session.created_at else 'Unknown' }}
                                        </p>
                                        <p class="text-muted small mb-1">
                                            <i data-feather="link" style="width: 14px; height: 14px;" class="me-1"></i>
                                            {{ session.urls|length if session.urls else 0 }} URLs analyzed
                                        </p>
                                    </div>
                                    <div class="col-md-6">
                                        <p class="text-muted small mb-1">
                                            <i data-feather="database" style="width: 14px; height: 14px;" class="me-1"></i>
                                            {{ session.total_svo_found or 0 }} SVO tuples
                                        </p>
                                        {% if session.completed_at and session.started_at %}
                                        <p class="text-muted small mb-1">
                                            <i data-feather="clock" style="width: 14px; height: 14px;" class="me-1"></i>
                                            Duration: {{ ((session.completed_at - session.started_at).total_seconds() / 60)|round(1) }} min
                                        </p>
                                        {% endif %}
                                    </div>
                                </div>
                            </div>
                            <div class="ms-3">
                                {% if session.status == 'completed' %}
                                <span class="badge bg-success">Completed</span>
                                {% elif session.status == 'running' %}
                                <span class="badge bg-warning">Running</span>
                                {% elif session.status == 'failed' %}
                                <span class="badge bg-danger">Failed</span>
                                {% else %}
                                <span class="badge bg-secondary">{{ session.status.title() }}</span>
                                {% endif %}
                            </div>
                        </div>
                        
                        {% if session.status == 'completed' %}
                        <div class="mt-3">
                            <a href="{{ url_for('admin_svo.view_research_session', session_id=session.id) }}" 
                               class="btn btn-sm btn-outline-primary me-2">
                                <i data-feather="eye" style="width: 14px; height: 14px;" class="me-1"></i>
                                View Details
                            </a>
                            <button class="btn btn-sm btn-outline-success" onclick="quickExport('{{ session.id }}')">
                                <i data-feather="download" style="width: 14px; height: 14px;" class="me-1"></i>
                                Export
                            </button>
                        </div>
                        {% endif %}
                    </div>
                    {% endfor %}
                </div>
                
                {% if sessions|length > 10 %}
                <div class="text-center mt-4">
                    <button class="btn btn-outline-primary" onclick="loadMoreSessions()">
                        <i data-feather="chevron-down" class="me-1"></i>
                        Load More Sessions ({{ sessions|length - 10 }} remaining)
                    </button>
                </div>
                {% endif %}
            </div>
        </div>
    </div>
</div>
{% endif %}

<!-- Comparative Analysis -->
<div class="row">
    <div class="col-12">
        <div class="comparative-view">
            <h5 class="mb-4">
                <i data-feather="git-compare" class="me-2 text-primary"></i>
                Comparative Research Analysis
            </h5>
            
            <div id="comparisonContainer">
                <div class="text-center text-muted py-4">
                    <i data-feather="bar-chart" style="width: 48px; height: 48px;" class="mb-3"></i>
                    <p>Select months or sessions above to compare research patterns</p>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- Back Navigation -->
<div class="row mt-5">
    <div class="col-12">
        <a href="{{ url_for('admin_svo.svo_research_dashboard') }}" class="btn btn-secondary">
            <i data-feather="arrow-left" class="me-1"></i>
            Back to Research Dashboard
        </a>
    </div>
</div>
{% endblock %}

{% block extra_js %}
<script>
// Global variables
const trendsData = {{ trends|tojson if trends else '{}' }};
let trendsChart = null;
let currentTrendView = 'sessions';

// Initialize page
document.addEventListener('DOMContentLoaded', function() {
    feather.replace();
    initializeTrendsChart();
});

function initializeTrendsChart() {
    const ctx = document.getElementById('trendsChart');
    if (!ctx || Object.keys(trendsData).length === 0) return;
    
    const months = Object.keys(trendsData).sort();
    const sessionsData = months.map(month => trendsData[month].sessions);
    const tuplesData = months.map(month => trendsData[month].total_tuples);
    const subjectsData = months.map(month => trendsData[month].unique_subjects);
    
    trendsChart = new Chart(ctx, {
        type: 'line',
        data: {
            labels: months,
            datasets: [{
                label: 'Sessions',
                data: sessionsData,
                borderColor: 'rgba(106, 63, 181, 1)',
                backgroundColor: 'rgba(106, 63, 181, 0.1)',
                tension: 0.4,
                fill: true
            }]
        },
        options: {
            responsive: true,
            maintainAspectRatio: false,
            plugins: {
                legend: {
                    position: 'top',
                },
                title: {
                    display: true,
                    text: 'Research Activity Over Time'
                }
            },
            scales: {
                y: {
                    beginAtZero: true
                }
            }
        }
    });
}

function switchTrendView(viewType) {
    // Update button states
    document.querySelectorAll('.btn-group button').forEach(btn => {
        btn.classList.remove('active');
    });
    event.target.classList.add('active');
    
    currentTrendView = viewType;
    
    if (!trendsChart || Object.keys(trendsData).length === 0) return;
    
    const months = Object.keys(trendsData).sort();
    let newData, label, color;
    
    switch(viewType) {
        case 'sessions':
            newData = months.map(month => trendsData[month].sessions);
            label = 'Sessions';
            color = 'rgba(106, 63, 181, 1)';
            break;
        case 'tuples':
            newData = months.map(month => trendsData[month].total_tuples);
            label = 'SVO Tuples';
            color = 'rgba(58, 166, 129, 1)';
            break;
        case 'unique_terms':
            newData = months.map(month => trendsData[month].unique_subjects + trendsData[month].unique_verbs);
            label = 'Unique Terms';
            color = 'rgba(255, 193, 7, 1)';
            break;
    }
    
    trendsChart.data.datasets[0].data = newData;
    trendsChart.data.datasets[0].label = label;
    trendsChart.data.datasets[0].borderColor = color;
    trendsChart.data.datasets[0].backgroundColor = color.replace('1)', '0.1)');
    trendsChart.update();
}

function showMonthDetails(month) {
    // Update active month chip
    document.querySelectorAll('.month-chip').forEach(chip => {
        chip.classList.remove('active');
    });
    event.target.classList.add('active');
    
    const detailsContainer = document.getElementById('monthlyDetails');
    
    if (month === 'all') {
        // Show overall stats (already displayed)
        return;
    }
    
    const monthData = trendsData[month];
    if (!monthData) return;
    
    detailsContainer.innerHTML = `
        <div class="stats-grid">
            <div class="stat-item">
                <div class="h3 text-primary">${monthData.sessions}</div>
                <div class="text-muted">Sessions in ${month}</div>
            </div>
            <div class="stat-item">
                <div class="h3 text-success">${monthData.total_tuples}</div>
                <div class="text-muted">SVO Tuples</div>
            </div>
            <div class="stat-item">
                <div class="h3 text-info">${monthData.unique_subjects}</div>
                <div class="text-muted">Unique Subjects</div>
            </div>
            <div class="stat-item">
                <div class="h3 text-warning">${monthData.unique_verbs}</div>
                <div class="text-muted">Unique Verbs</div>
            </div>
        </div>
        <div class="alert alert-info mt-3">
            <strong>Monthly Insights:</strong> 
            This month showed ${monthData.sessions > 3 ? 'high' : 'moderate'} research activity
            with an average of ${Math.round(monthData.total_tuples / monthData.sessions)} SVO tuples per session.
        </div>
    `;
}

function compareMonths() {
    if (Object.keys(trendsData).length < 2) {
        alert('Need at least 2 months of data for comparison.');
        return;
    }
    
    // Create comparison interface
    const months = Object.keys(trendsData).sort();
    const modal = document.createElement('div');
    modal.className = 'modal fade';
    modal.innerHTML = `
        <div class="modal-dialog modal-xl">
            <div class="modal-content">
                <div class="modal-header">
                    <h5 class="modal-title">Compare Research Months</h5>
                    <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
                </div>
                <div class="modal-body">
                    <div class="row mb-3">
                        <div class="col-md-6">
                            <label class="form-label">First Month:</label>
                            <select class="form-select" id="month1">
                                ${months.map(month => `<option value="${month}">${month}</option>`).join('')}
                            </select>
                        </div>
                        <div class="col-md-6">
                            <label class="form-label">Second Month:</label>
                            <select class="form-select" id="month2">
                                ${months.map((month, i) => `<option value="${month}" ${i === 1 ? 'selected' : ''}>${month}</option>`).join('')}
                            </select>
                        </div>
                    </div>
                    <div id="comparisonResults">
                        <!-- Comparison results will appear here -->
                    </div>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-primary" onclick="runComparison()">Compare</button>
                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
                </div>
            </div>
        </div>
    `;
    
    document.body.appendChild(modal);
    const bsModal = new bootstrap.Modal(modal);
    bsModal.show();
    
    modal.addEventListener('hidden.bs.modal', () => modal.remove());
}

function runComparison() {
    const month1 = document.getElementById('month1').value;
    const month2 = document.getElementById('month2').value;
    const resultsContainer = document.getElementById('comparisonResults');
    
    const data1 = trendsData[month1];
    const data2 = trendsData[month2];
    
    const sessionsDiff = ((data2.sessions - data1.sessions) / data1.sessions * 100).toFixed(1);
    const tuplesDiff = ((data2.total_tuples - data1.total_tuples) / data1.total_tuples * 100).toFixed(1);
    
    resultsContainer.innerHTML = `
        <div class="row">
            <div class="col-md-6">
                <div class="card">
                    <div class="card-header bg-primary text-white">
                        <h6 class="mb-0">${month1}</h6>
                    </div>
                    <div class="card-body">
                        <div class="row">
                            <div class="col-6 text-center">
                                <div class="h4">${data1.sessions}</div>
                                <div class="small text-muted">Sessions</div>
                            </div>
                            <div class="col-6 text-center">
                                <div class="h4">${data1.total_tuples}</div>
                                <div class="small text-muted">SVO Tuples</div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
            <div class="col-md-6">
                <div class="card">
                    <div class="card-header bg-success text-white">
                        <h6 class="mb-0">${month2}</h6>
                    </div>
                    <div class="card-body">
                        <div class="row">
                            <div class="col-6 text-center">
                                <div class="h4">${data2.sessions}</div>
                                <div class="small text-muted">Sessions</div>
                            </div>
                            <div class="col-6 text-center">
                                <div class="h4">${data2.total_tuples}</div>
                                <div class="small text-muted">SVO Tuples</div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
        <div class="alert alert-info mt-3">
            <strong>Comparison Results:</strong><br>
            Sessions: ${sessionsDiff > 0 ? '+' : ''}${sessionsDiff}% change<br>
            SVO Tuples: ${tuplesDiff > 0 ? '+' : ''}${tuplesDiff}% change<br>
            Research productivity ${Math.abs(tuplesDiff) > 20 ? 'significantly' : 'moderately'} ${tuplesDiff > 0 ? 'increased' : 'decreased'}.
        </div>
    `;
}

async function exportTrends() {
    try {
        const exportData = {
            trends: trendsData,
            export_timestamp: new Date().toISOString(),
            summary: {
                total_months: Object.keys(trendsData).length,
                peak_month: Object.keys(trendsData).reduce((a, b) => trendsData[a].total_tuples > trendsData[b].total_tuples ? a : b),
                total_research_sessions: Object.values(trendsData).reduce((sum, month) => sum + month.sessions, 0)
            }
        };
        
        const blob = new Blob([JSON.stringify(exportData, null, 2)], { type: 'application/json' });
        const url = window.URL.createObjectURL(blob);
        const a = document.createElement('a');
        a.href = url;
        a.download = `svo_trends_${new Date().toISOString().split('T')[0]}.json`;
        document.body.appendChild(a);
        a.click();
        document.body.removeChild(a);
        window.URL.revokeObjectURL(url);
        
        showAlert('success', 'Trends data exported successfully!');
    } catch (error) {
        console.error('Export error:', error);
        showAlert('danger', 'Export failed: ' + error.message);
    }
}

function generateReport() {
    // Generate a comprehensive research report
    alert('Research report generation would be implemented here, including trend analysis, insights, and recommendations.');
}

function predictTrends() {
    // Simple trend prediction based on recent data
    if (Object.keys(trendsData).length < 3) {
        alert('Need at least 3 months of data for trend prediction.');
        return;
    }
    
    alert('AI-powered trend prediction would analyze current patterns and forecast future research activity.');
}

function loadMoreSessions() {
    alert('Loading additional sessions would require server-side pagination implementation.');
}

function quickExport(sessionId) {
    window.open(`/admin/svo-research/session/${sessionId}`, '_blank');
}

function showAlert(type, message) {
    const alertHtml = `
        <div class="alert alert-${type} alert-dismissible fade show position-fixed" 
             style="top: 20px; right: 20px; z-index: 9999; max-width: 400px;" role="alert">
            ${message}
            <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
        </div>
    `;
    
    document.body.insertAdjacentHTML('beforeend', alertHtml);
    
    // Auto-dismiss after 5 seconds
    setTimeout(() => {
        const alerts = document.querySelectorAll('.alert');
        const lastAlert = alerts[alerts.length - 1];
        if (lastAlert) {
            const bsAlert = bootstrap.Alert.getOrCreateInstance(lastAlert);
            bsAlert.close();
        }
    }, 5000);
}
</script>
{% endblock %}