{{> head}}

<style>
/* Critical CSS for immediate render */
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background: #f5f7fa; }
        .sidebar { position: fixed; left: 0; top: 0; width: 260px; height: 100vh; background: #1f2937; z-index: 1040; }
        .main-wrapper { margin-left: 260px; min-height: 100vh; transition: margin-left 0.3s ease; }
        .top-navbar { background: white; height: 60px; box-shadow: 0 1px 3px rgba(0,0,0,0.1); padding: 0 1rem; }
        .dashboard-content { padding: 24px; }

        /* Loading animation */
        @keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
        .loading { animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite; background: #e5e7eb; }
</style>

{{> sidebar}}

<!-- Main Content Wrapper -->
<div class="main-wrapper" id="mainWrapper">
    {{> header}}

    <!-- Main Content -->
    <main class="dashboard-content" id="main-content">
        <div class="container-fluid">
<!-- Page Header -->
            <div class="mb-3">
                <h1 class="h3 font-bold">Bar Charts</h1>
                <p class="text-muted text-sm">Interactive bar chart visualizations for data analysis and reporting.</p>
            </div>

            <!-- Bar Charts Content Row -->
            <div class="dashboard-row">
                <div class="dashboard-grid grid-cols-2">
                    <!-- Student Enrollment Chart -->
                    <div class="chart-wrapper">
                        <div class="dashboard-card-header">
                            <h5 class="dashboard-card-title">Student Enrollment by Department</h5>
                        </div>
                        <div class="chart-container-main">
                            <canvas id="enrollmentChart"></canvas>
                        </div>
                    </div>

                    <!-- Course Performance Chart -->
                    <div class="chart-wrapper">
                        <div class="dashboard-card-header">
                            <h5 class="dashboard-card-title">Course Performance Analysis</h5>
                        </div>
                        <div class="chart-container-main">
                            <canvas id="performanceChart"></canvas>
                        </div>
                    </div>
                </div>
            </div>

            <!-- Revenue and Budget Charts Row -->
            <div class="dashboard-row">
                <div class="dashboard-grid grid-cols-2">
                    <!-- Monthly Revenue Chart -->
                    <div class="chart-wrapper">
                        <div class="dashboard-card-header">
                            <h5 class="dashboard-card-title">Monthly Revenue</h5>
                        </div>
                        <div class="chart-container-main">
                            <canvas id="revenueChart"></canvas>
                        </div>
                    </div>

                    <!-- Department Budget Chart -->
                    <div class="chart-wrapper">
                        <div class="dashboard-card-header">
                            <h5 class="dashboard-card-title">Department Budget Allocation</h5>
                        </div>
                        <div class="chart-container-main">
                            <canvas id="budgetChart"></canvas>
                        </div>
                    </div>
                </div>
            </div>

            <!-- Single Wide Chart Row -->
            <div class="dashboard-row">
                <div class="dashboard-grid grid-cols-1">
                    <div class="chart-wrapper">
                        <div class="dashboard-card-header">
                            <h5 class="dashboard-card-title">Quarterly Academic Performance Comparison</h5>
                        </div>
                        <div class="chart-container-main">
                            <canvas id="quarterlyChart"></canvas>
                        </div>
                    </div>
                </div>
            </div>
        </div>        </div>
    </main>

    {{> footer}}
</div>

{{> scripts}}

<!-- Chart.js -->
<script src="node_modules/chart.js/dist/chart.umd.js"></script>

<script>
// Sample data for charts
        const enrollmentData = {
            labels: ['Computer Science', 'Engineering', 'Business', 'Arts & Sciences', 'Medicine', 'Law', 'Education', 'Nursing'],
            datasets: [{
                label: 'Undergraduate',
                data: [245, 189, 167, 203, 98, 76, 134, 156],
                backgroundColor: '#007bff',
                borderColor: '#0056b3',
                borderWidth: 1
            }, {
                label: 'Graduate',
                data: [67, 89, 45, 78, 123, 34, 56, 67],
                backgroundColor: '#28a745',
                borderColor: '#1e7e34',
                borderWidth: 1
            }, {
                label: 'PhD',
                data: [23, 34, 12, 45, 67, 23, 18, 29],
                backgroundColor: '#ffc107',
                borderColor: '#d39e00',
                borderWidth: 1
            }]
        };

        const performanceData = {
            labels: ['Math 101', 'Physics 201', 'Chemistry 105', 'Biology 110', 'English 102', 'History 205', 'Economics 301', 'Psychology 101'],
            datasets: [{
                label: 'Average Score',
                data: [78.5, 82.3, 76.8, 89.2, 85.6, 79.4, 88.1, 83.7],
                backgroundColor: function(context) {
                    const value = context.parsed.y;
                    if (value >= 85) return '#28a745';
                    if (value >= 75) return '#ffc107';
                    return '#dc3545';
                },
                borderColor: '#6c757d',
                borderWidth: 1
            }]
        };

        const revenueData = {
            labels: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
            datasets: [{
                label: 'Tuition Fees',
                data: [180000, 175000, 182000, 190000, 195000, 185000, 200000, 205000, 198000, 210000, 215000, 220000],
                backgroundColor: '#007bff',
                borderColor: '#0056b3',
                borderWidth: 1
            }, {
                label: 'Additional Fees',
                data: [25000, 23000, 27000, 30000, 28000, 26000, 32000, 31000, 29000, 35000, 33000, 36000],
                backgroundColor: '#6610f2',
                borderColor: '#520dc2',
                borderWidth: 1
            }, {
                label: 'Other Income',
                data: [15000, 12000, 18000, 16000, 14000, 17000, 19000, 21000, 18000, 22000, 20000, 24000],
                backgroundColor: '#17a2b8',
                borderColor: '#138496',
                borderWidth: 1
            }]
        };

        const budgetData = {
            labels: ['Computer Science', 'Engineering', 'Business', 'Arts & Sciences', 'Medicine', 'Administration'],
            datasets: [{
                label: 'Allocated',
                data: [350000, 420000, 280000, 320000, 650000, 180000],
                backgroundColor: '#28a745',
                borderColor: '#1e7e34',
                borderWidth: 1
            }, {
                label: 'Spent',
                data: [245000, 315000, 195000, 230000, 475000, 135000],
                backgroundColor: '#ffc107',
                borderColor: '#d39e00',
                borderWidth: 1
            }]
        };

        const quarterlyData = {
            labels: ['Q1 2023', 'Q2 2023', 'Q3 2023', 'Q4 2023', 'Q1 2024', 'Q2 2024'],
            datasets: [{
                label: 'Computer Science',
                data: [85.2, 87.1, 88.5, 89.3, 90.1, 91.2],
                backgroundColor: '#007bff',
                borderColor: '#0056b3',
                borderWidth: 1
            }, {
                label: 'Engineering',
                data: [82.8, 84.2, 85.6, 87.1, 88.3, 89.7],
                backgroundColor: '#28a745',
                borderColor: '#1e7e34',
                borderWidth: 1
            }, {
                label: 'Business',
                data: [78.9, 80.3, 81.7, 83.2, 84.8, 86.1],
                backgroundColor: '#ffc107',
                borderColor: '#d39e00',
                borderWidth: 1
            }, {
                label: 'Arts & Sciences',
                data: [81.5, 83.1, 84.7, 86.2, 87.5, 88.9],
                backgroundColor: '#dc3545',
                borderColor: '#c82333',
                borderWidth: 1
            }, {
                label: 'Medicine',
                data: [88.7, 90.2, 91.8, 93.1, 94.5, 95.3],
                backgroundColor: '#6f42c1',
                borderColor: '#59359a',
                borderWidth: 1
            }]
        };

        // Chart configuration options
        const chartOptions = {
            responsive: true,
            maintainAspectRatio: false,
            plugins: {
                legend: {
                    display: false // We're using custom legends
                },
                tooltip: {
                    backgroundColor: 'rgba(0,0,0,0.8)',
                    titleColor: 'white',
                    bodyColor: 'white',
                    borderColor: '#dee2e6',
                    borderWidth: 1
                }
            },
            scales: {
                y: {
                    beginAtZero: true,
                    grid: {
                        color: 'rgba(0,0,0,0.1)'
                    },
                    ticks: {
                        color: '#6c757d'
                    }
                },
                x: {
                    grid: {
                        color: 'rgba(0,0,0,0.1)'
                    },
                    ticks: {
                        color: '#6c757d'
                    }
                }
            }
        };

        // Initialize charts when DOM is loaded
        document.addEventListener('DOMContentLoaded', function() {
            // Student Enrollment Chart
            const enrollmentCtx = document.getElementById('enrollmentChart').getContext('2d');
            const enrollmentChart = new Chart(enrollmentCtx, {
                type: 'bar',
                data: enrollmentData,
                options: chartOptions
            });

            // Course Performance Chart
            const performanceCtx = document.getElementById('performanceChart').getContext('2d');
            const performanceChart = new Chart(performanceCtx, {
                type: 'bar',
                data: performanceData,
                options: {
                    ...chartOptions,
                    scales: {
                        ...chartOptions.scales,
                        y: {
                            ...chartOptions.scales.y,
                            max: 100
                        }
                    }
                }
            });

            // Revenue Chart
            const revenueCtx = document.getElementById('revenueChart').getContext('2d');
            const revenueChart = new Chart(revenueCtx, {
                type: 'bar',
                data: revenueData,
                options: {
                    ...chartOptions,
                    scales: {
                        ...chartOptions.scales,
                        y: {
                            ...chartOptions.scales.y,
                            ticks: {
                                ...chartOptions.scales.y.ticks,
                                callback: function(value) {
                                    return '$' + (value / 1000) + 'K';
                                }
                            }
                        }
                    }
                }
            });

            // Budget Chart
            const budgetCtx = document.getElementById('budgetChart').getContext('2d');
            const budgetChart = new Chart(budgetCtx, {
                type: 'bar',
                data: budgetData,
                options: {
                    ...chartOptions,
                    scales: {
                        ...chartOptions.scales,
                        y: {
                            ...chartOptions.scales.y,
                            ticks: {
                                ...chartOptions.scales.y.ticks,
                                callback: function(value) {
                                    return '$' + (value / 1000) + 'K';
                                }
                            }
                        }
                    }
                }
            });

            // Quarterly Chart
            const quarterlyCtx = document.getElementById('quarterlyChart').getContext('2d');
            const quarterlyChart = new Chart(quarterlyCtx, {
                type: 'bar',
                data: quarterlyData,
                options: {
                    ...chartOptions,
                    scales: {
                        ...chartOptions.scales,
                        y: {
                            ...chartOptions.scales.y,
                            min: 70,
                            max: 100
                        }
                    }
                }
            });

            // Period selector functionality
            document.querySelectorAll('.chart-period-btn').forEach(btn => {
                btn.addEventListener('click', function() {
                    const container = this.closest('.chart-wrapper');

                    // Update active state
                    container.querySelectorAll('.chart-period-btn').forEach(b => b.classList.remove('active'));
                    this.classList.add('active');

                    // Here you would typically update the chart data based on the selected period
                    console.log('Selected period:', this.dataset.period);
                });
            });
        });

        // Export chart function
        function exportChart(chartId) {
            const canvas = document.getElementById(chartId);
            const link = document.createElement('a');
            link.download = chartId + '_' + new Date().toISOString().split('T')[0] + '.png';
            link.href = canvas.toDataURL();
            link.click();
        }
</script>

</body>
</html>