document.addEventListener('DOMContentLoaded', function() {
    // Initialize charts
    initGenderChart();
    initAgeChart();
});

function initGenderChart() {
    const ctx = document.getElementById('genderChart').getContext('2d');
    const genderChart = new Chart(ctx, {
        type: 'bar',
        data: {
            labels: ['Program A', 'Program B'],
            datasets: [
                {
                    label: 'Male',
                    data: [4215, 2517],
                    backgroundColor: '#3b82f6',
                    borderRadius: 4
                },
                {
                    label: 'Female',
                    data: [3627, 2099],
                    backgroundColor: '#10b981',
                    borderRadius: 4
                }
            ]
        },
        options: {
            responsive: true,
            maintainAspectRatio: false,
            scales: {
                x: {
                    stacked: false,
                    grid: {
                        display: false
                    }
                },
                y: {
                    stacked: false,
                    beginAtZero: true,
                    grid: {
                        drawBorder: false
                    }
                }
            },
            plugins: {
                legend: {
                    position: 'top',
                },
                tooltip: {
                    mode: 'index',
                    intersect: false,
                }
            }
        }
    });
}

function initAgeChart() {
    const ctx = document.getElementById('ageChart').getContext('2d');
    const ageChart = new Chart(ctx, {
        type: 'line',
        data: {
            labels: ['0-9', '10-19', '20-29', '30-39', '40-49', '50-59', '60+'],
            datasets: [{
                label: 'Population by Age',
                data: [1200, 1900, 3000, 2500, 1800, 1200, 858],
                fill: true,
                backgroundColor: 'rgba(59, 130, 246, 0.1)',
                borderColor: '#3b82f6',
                tension: 0.3,
                pointBackgroundColor: '#3b82f6',
                pointBorderColor: '#fff',
                pointHoverRadius: 5,
                pointHoverBackgroundColor: '#3b82f6',
                pointHoverBorderColor: '#fff',
                pointHitRadius: 10,
                pointBorderWidth: 2
            }]
        },
        options: {
            responsive: true,
            maintainAspectRatio: false,
            scales: {
                y: {
                    beginAtZero: true,
                    grid: {
                        drawBorder: false
                    }
                },
                x: {
                    grid: {
                        display: false
                    }
                }
            },
            plugins: {
                legend: {
                    display: false
                }
            }
        }
    });
}

// Responsive behavior for charts
window.addEventListener('resize', function() {
    // Charts automatically handle resizing with responsive: true option
});