const fullData = [
    { x: new Date('2024-02-02'), y: 10370 },
    { x: new Date('2024-02-05'), y: 10248 },
    { x: new Date('2024-02-06'), y: 10235 },
    { x: new Date('2024-02-07'), y: 10236 },
    { x: new Date('2024-02-08'), y: 10212 },
    { x: new Date('2024-02-09'), y: 10171 },
    { x: new Date('2024-02-10'), y: 10186 },
    { x: new Date('2024-02-12'), y: 10185 },
    { x: new Date('2024-02-13'), y: 10161 },
    { x: new Date('2024-02-14'), y: 10117 },
    { x: new Date('2024-05-20'), y: 10701 },
    { x: new Date('2024-08-01'), y: 10602 },
    { x: new Date('2024-08-02'), y: 10573 },
    { x: new Date('2024-08-05'), y: 10511 },
    { x: new Date('2024-08-06'), y: 10528 },
    { x: new Date('2024-08-07'), y: 10487 },
    { x: new Date('2024-08-28'), y: 10513 },
    { x: new Date('2024-08-29'), y: 10480 },
    { x: new Date('2024-08-30'), y: 10521 },
    { x: new Date('2024-09-02'), y: 10515 },
    { x: new Date('2024-09-03'), y: 10558 },
    { x: new Date('2024-09-04'), y: 10372 },
    { x: new Date('2024-09-05'), y: 10367 },
    { x: new Date('2024-09-05'), y: 10363 },
    { x: new Date('2024-09-06'), y: 10335 },
    { x: new Date('2024-09-07'), y: 10309 },
    { x: new Date('2024-09-08'), y: 10309 },
    { x: new Date('2024-09-09'), y: 10317 },
    { x: new Date('2024-09-10'), y: 10272 },
    { x: new Date('2024-09-19'), y: 10375 },
    { x: new Date('2024-09-20'), y: 10288 },
    { x: new Date('2024-09-23'), y: 10335 },
    { x: new Date('2024-09-24'), y: 10400 },
    { x: new Date('2024-09-25'), y: 10390 },
    { x: new Date('2024-09-26'), y: 10384 },
    { x: new Date('2024-09-27'), y: 10428 },
    { x: new Date('2024-10-01'), y: 10525 },
    { x: new Date('2024-10-02'), y: 10512 },
    { x: new Date('2024-10-03'), y: 10578 },
    { x: new Date('2024-10-04'), y: 10601 },
    { x: new Date('2024-10-05'), y: 10690 },
    { x: new Date('2024-10-07'), y: 10660 },
    { x: new Date('2024-10-08'), y: 10574 },
    { x: new Date('2024-10-10'), y: 10562 },
    { x: new Date('2024-10-11'), y: 10560 },
    { x: new Date('2024-10-12'), y: 10502 },
    { x: new Date('2024-10-14'), y: 10479 },
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    { x: new Date('2024-10-16'), y: 10392 },
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    { x: new Date('2024-10-22'), y: 10376 },
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    { x: new Date('2024-10-28'), y: 10330 },
    { x: new Date('2024-10-29'), y: 10370 },
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    { x: new Date('2024-10-31'), y: 10312 },
    { x: new Date('2024-11-01'), y: 10344 },
    { x: new Date('2024-11-02'), y: 10403 },
    { x: new Date('2024-11-03'), y: 10403 },
    { x: new Date('2024-11-04'), y: 10403 },
    { x: new Date('2024-11-05'), y: 10394 },
    { x: new Date('2024-11-06'), y: 10433 },
    { x: new Date('2024-11-07'), y: 10395 },
    { x: new Date('2024-11-08'), y: 10395 },
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    { x: new Date('2024-11-10'), y: 10305 },
    { x: new Date('2024-11-11'), y: 10331 },
    { x: new Date('2024-11-12'), y: 10358 },
    { x: new Date('2024-11-13'), y: 10329 },
    { x: new Date('2024-11-14'), y: 10260 },
    { x: new Date('2024-11-15'), y: 10306 },
    { x: new Date('2024-11-16'), y: 10275 },
    { x: new Date('2024-11-17'), y: 10275 },
    { x: new Date('2024-11-18'), y: 10253 },
    { x: new Date('2024-11-19'), y: 10298 },
    { x: new Date('2024-11-21'), y: 10386 },
    { x: new Date('2024-11-22'), y: 10369 },
    { x: new Date('2024-11-23'), y: 10366 },
    { x: new Date('2024-11-24'), y: 10366 },
    { x: new Date('2024-11-26'), y: 10249 },
    { x: new Date('2024-11-27'), y: 10309 },
    { x: new Date('2024-11-28'), y: 10310 },
    { x: new Date('2024-11-29'), y: 10318 },
    { x: new Date('2024-12-01'), y: 10315 },
    { x: new Date('2024-12-02'), y: 10295 },
    { x: new Date('2024-12-03'), y: 10322 },
    { x: new Date('2024-12-04'), y: 10271 },
    { x: new Date('2024-12-06'), y: 10187 },
    { x: new Date('2024-12-07'), y: 10163 },
    { x: new Date('2024-12-08'), y: 10163 },
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    { x: new Date('2024-12-10'), y: 10194 },
    { x: new Date('2024-12-11'), y: 10155 },
    { x: new Date('2024-12-12'), y: 10213 },
    { x: new Date('2024-12-13'), y: 10161 },
    { x: new Date('2024-12-14'), y: 10199 },
    { x: new Date('2024-12-15'), y: 10199 },
    { x: new Date('2024-12-16'), y: 10210 },
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    { x: new Date('2024-12-18'), y: 10188 },
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    { x: new Date('2024-12-20'), y: 10159 },
    { x: new Date('2024-12-22'), y: 10114 },
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    { x: new Date('2024-12-24'), y: 10131 },
    { x: new Date('2024-12-25'), y: 10112 },
    { x: new Date('2024-12-27'), y: 10096 },
    { x: new Date('2024-12-30'), y: 10106 },
    { x: new Date('2024-12-31'), y: 10058 },
    { x: new Date('2025-01-02'), y: 10098 },
    { x: new Date('2025-01-03'), y: 10086 },
    { x: new Date('2025-01-04'), y: 10079 },
    { x: new Date('2025-01-06'), y: 10079 },
    { x: new Date('2025-01-15'), y: 10080 },
    { x: new Date('2025-01-16'), y: 10198 },
    { x: new Date('2025-01-17'), y: 10193 },
    { x: new Date('2025-01-19'), y: 10144 },
    { x: new Date('2025-01-20'), y: 10145 },
    { x: new Date('2025-01-21'), y: 10251 },
    { x: new Date('2025-01-22'), y: 10243 },
    { x: new Date('2025-01-23'), y: 10213 },
    { x: new Date('2025-01-24'), y: 10199 },
    { x: new Date('2025-01-25'), y: 10209 },
    { x: new Date('2025-01-26'), y: 10209 },
    { x: new Date('2025-01-27'), y: 10180 },
    { x: new Date('2025-01-28'), y: 10148 },
    { x: new Date('2025-01-29'), y: 10133 },
    { x: new Date('2025-01-31'), y: 10107 },
    { x: new Date('2025-02-01'), y: 10155 },
    { x: new Date('2025-02-03'), y: 10036 },
    { x: new Date('2025-02-04'), y: 10153 },
    { x: new Date('2025-02-06'), y: 10238 },
    { x: new Date('2025-02-07'), y: 10248 },
    { x: new Date('2025-02-08'), y: 10229 },
    { x: new Date('2025-02-09'), y: 10231 },
    { x: new Date('2025-02-10'), y: 10221 },
    { x: new Date('2025-02-11'), y: 10221 },
    { x: new Date('2025-02-12'), y: 10248 },
    { x: new Date('2025-02-13'), y: 10282 },
    { x: new Date('2025-02-14'), y: 10269 },
    { x: new Date('2025-02-17'), y: 10305 },
    { x: new Date('2025-02-18'), y: 10322 },
    { x: new Date('2025-02-19'), y: 10361 },
    { x: new Date('2025-02-20'), y: 10381 },
    { x: new Date('2025-02-24'), y: 10383 },
    { x: new Date('2025-02-25'), y: 10344 },
    { x: new Date('2025-02-26'), y: 10374 },
    { x: new Date('2025-02-27'), y: 10334 },
    { x: new Date('2025-02-28'), y: 10324 },
    { x: new Date('2025-03-01'), y: 10289 },
    { x: new Date('2025-03-02'), y: 10290 },
    { x: new Date('2025-03-03'), y: 10298 },
    { x: new Date('2025-03-04'), y: 10244 },
    { x: new Date('2025-03-06'), y: 10310 },
    { x: new Date('2025-03-07'), y: 10343 },
    { x: new Date('2025-03-08'), y: 10279 },
    { x: new Date('2025-03-10'), y: 10277 },
    { x: new Date('2025-03-11'), y: 10320 },
    { x: new Date('2025-03-12'), y: 10344.14 },
    { x: new Date('2025-03-13'), y: 10374.54 },
    { x: new Date('2025-03-14'), y: 10311.32 },
    { x: new Date('2025-03-15'), y: 10335.66 },
    { x: new Date('2025-03-16'), y: 10332.28 },
    { x: new Date('2025-03-17'), y: 10332.28 },
    { x: new Date('2025-03-18'), y: 10346.05 },
    { x: new Date('2025-03-19'), y: 10488.22 },
    { x: new Date('2025-03-20'), y: 10488.62 },
    { x: new Date('2025-03-21'), y: 10387.80 },
    { x: new Date('2025-03-22'), y: 10364.79 },
    { x: new Date('2025-03-23'), y: 10367.72 },
    { x: new Date('2025-03-24'), y: 10379.36 },
    { x: new Date('2025-03-25'), y: 10379.36 },
    { x: new Date('2025-03-26'), y: 10474.34 },
    { x: new Date('2025-03-27'), y: 10459.42 },
    { x: new Date('2025-03-28'), y: 10458.44 },
    { x: new Date('2025-03-30'), y: 10445.88 },
    { x: new Date('2025-03-31'), y: 10421.23 },
    { x: new Date('2025-04-01'), y: 10366.91 },
    { x: new Date('2025-04-02'), y: 10431.58 },
    { x: new Date('2025-04-03'), y: 10466.51 },
    { x: new Date('2025-04-04'), y: 10543.88 },
    { x: new Date('2025-04-05'), y: 10170.76 },
    { x: new Date('2025-04-06'), y: 10210.10 },
    { x: new Date('2025-04-07'), y: 10129.42 },
    { x: new Date('2025-04-08'), y: 10003.73 },
    { x: new Date('2025-04-09'), y: 10199.58 },
    { x: new Date('2025-04-10'), y: 10262.17 },
    { x: new Date('2025-04-11'), y: 10473.36 },
    { x: new Date('2025-04-12'), y: 10531.94 },
    { x: new Date('2025-04-13'), y: 10523.13 },
    { x: new Date('2025-04-14'), y: 10563.24 },
    { x: new Date('2025-04-15'), y: 10603.15 },
    { x: new Date('2025-04-16'), y: 10678.64 },
    { x: new Date('2025-04-17'), y: 10710.97 },
    { x: new Date('2025-04-18'), y: 10759.96 },
    { x: new Date('2025-04-19'), y: 10744.80 },
    { x: new Date('2025-04-20'), y: 10741.46 },
    { x: new Date('2025-04-21'), y: 10760.09 },
    { x: new Date('2025-04-22'), y: 10800.45 },
    { x: new Date('2025-04-23'), y: 10762.19 },
    { x: new Date('2025-04-24'), y: 10785.54 },
    { x: new Date('2025-04-26'), y: 10773.18 },
    { x: new Date('2025-04-27'), y: 10771.69 },
    { x: new Date('2025-04-28'), y: 10758.37 },
    { x: new Date('2025-05-02'), y: 10615.53 },
    { x: new Date('2025-05-05'), y: 10623.85 },
    { x: new Date('2025-05-06'), y: 10623.85 },
    { x: new Date('2025-05-08'), y: 10668.66 },
    { x: new Date('2025-05-09'), y: 10592.63 },
    { x: new Date('2025-05-10'), y: 10614.86 },
    { x: new Date('2025-05-11'), y: 10608.38 },
    { x: new Date('2025-05-12'), y: 10628.13 },
    { x: new Date('2025-05-13'), y: 10587.72 },
    { x: new Date('2025-05-14'), y: 10686.98 },
    { x: new Date('2025-05-15'), y: 10679.06 },
    { x: new Date('2025-05-16'), y: 10573.06 },
    { x: new Date('2025-05-17'), y: 10550.22 },
    { x: new Date('2025-05-19'), y: 10564.14 },
    { x: new Date('2025-05-20'), y: 10613.12 },
    { x: new Date('2025-05-21'), y: 10538.79 },
    { x: new Date('2025-05-22'), y: 10558.30 },
    { x: new Date('2025-05-24'), y: 10517.38 },
    { x: new Date('2025-05-26'), y: 10537.56 },
    { x: new Date('2025-05-27'), y: 10546.68 },
    { x: new Date('2025-06-04'), y: 10549.84 },
    { x: new Date('2025-06-05'), y: 10579.65 },
    { x: new Date('2025-06-06'), y: 10588.74 },
    { x: new Date('2025-06-07'), y: 10585.02 },
    { x: new Date('2025-06-08'), y: 10581.85 },
    { x: new Date('2025-06-10'), y: 10615.08 },
    { x: new Date('2025-06-11'), y: 10615.03 },
    { x: new Date('2025-06-12'), y: 10589.68 },
    { x: new Date('2025-06-13'), y: 10587.21 },
    { x: new Date('2025-06-14'), y: 10591.83 },
    { x: new Date('2025-06-15'), y: 10587.23 },
    { x: new Date('2025-06-16'), y: 10574.97 },
    { x: new Date('2025-06-17'), y: 10629.41 },
    { x: new Date('2025-06-18'), y: 10565.48 },
    { x: new Date('2025-06-20'), y: 10611.88 },
    { x: new Date('2025-06-21'), y: 10597.80 },
    { x: new Date('2025-06-22'), y: 10599.58 },
    { x: new Date('2025-06-23'), y: 10586.67 },
    { x: new Date('2025-06-24'), y: 10638.75 },
    { x: new Date('2025-06-25'), y: 10608.41 },
    { x: new Date('2025-06-26'), y: 10618.61 },
    { x: new Date('2025-06-27'), y: 10614.86 },
    { x: new Date('2025-06-28'), y: 10607.12 },
    { x: new Date('2025-06-29'), y: 10607.27 },
    { x: new Date('2025-06-30'), y: 10603.99 },
    { x: new Date('2025-07-01'), y: 10640.71 },
    { x: new Date('2025-07-02'), y: 10669.82 },
    { x: new Date('2025-07-04'), y: 10651.64 },
    { x: new Date('2025-07-05'), y: 10615.13 },
    { x: new Date('2025-07-06'), y: 10615.53 },
    { x: new Date('2025-07-07'), y: 10613.39 },
    { x: new Date('2025-07-08'), y: 10566.03 },
    { x: new Date('2025-07-09'), y: 10619.81 },
    { x: new Date('2025-07-10'), y: 10625.04 },
    { x: new Date('2025-07-12'), y: 10676.93 },
    { x: new Date('2025-07-13'), y: 10675.78 },
    { x: new Date('2025-07-14'), y: 10673.27 },
    { x: new Date('2025-07-16'), y: 10629.79 },
    { x: new Date('2025-07-17'), y: 10636.13 },
    { x: new Date('2025-07-19'), y: 10626.20 },
    { x: new Date('2025-07-20'), y: 10622.82 },
    { x: new Date('2025-07-21'), y: 10608.38 },
    { x: new Date('2025-07-22'), y: 10645.56 },
    { x: new Date('2025-07-23'), y: 10654.40 },
    { x: new Date('2025-07-24'), y: 10735.75 },
    { x: new Date('2025-07-25'), y: 10750.25 },
    { x: new Date('2025-07-26'), y: 10725.95 },
    { x: new Date('2025-07-27'), y: 10725.34 },
    { x: new Date('2025-07-29'), y: 10678.44 },
    { x: new Date('2025-07-30'), y: 10670.00 },
    { x: new Date('2025-07-31'), y: 10613.75 },
    { x: new Date('2025-08-01'), y: 10607.93 },
    { x: new Date('2025-08-02'), y: 10614.01 },
    { x: new Date('2025-08-03'), y: 10613.04 },
    { x: new Date('2025-08-04'), y: 10617.55 },
    { x: new Date('2025-08-05'), y: 10607.70 },
    { x: new Date('2025-08-06'), y: 10603.81 },
    { x: new Date('2025-08-07'), y: 10635.42 },
    { x: new Date('2025-08-08'), y: 10645.11 },
    { x: new Date('2025-08-09'), y: 10633.40 },
    { x: new Date('2025-08-10'), y: 10629.72 },
    { x: new Date('2025-08-11'), y: 10614.26 },
    { x: new Date('2025-08-12'), y: 10601.67 },
    { x: new Date('2025-08-13'), y: 10600.65 },
    { x: new Date('2025-08-14'), y: 10583.80 },
    { x: new Date('2025-08-15'), y: 10503.63 },
    { x: new Date('2025-08-16'), y: 10521.68 },
    { x: new Date('2025-08-18'), y: 10537.66 },
    { x: new Date('2025-08-19'), y: 10530.13 },
    { x: new Date('2025-08-20'), y: 10519.80 },
    { x: new Date('2025-08-21'), y: 10480.42 },
    { x: new Date('2025-08-22'), y: 10488.26 },
    { x: new Date('2025-08-23'), y: 10548.41 },
    { x: new Date('2025-08-24'), y: 10542.35 },
    { x: new Date('2025-08-25'), y: 10561.15 },
    { x: new Date('2025-08-26'), y: 10552.01 },
    { x: new Date('2025-08-27'), y: 10585.26 },
    { x: new Date('2025-08-28'), y: 10649.29 },
    { x: new Date('2025-08-29'), y: 10675.55 },
    { x: new Date('2025-08-30'), y: 10779.56 },
    { x: new Date('2025-08-31'), y: 10775.52 }];

const options = {
    chart: {
        type: 'area',
        height: 300,
        toolbar: { show: false },
        zoom: { enabled: false }
    },
    series: [{ name: '', data: fullData }],
    xaxis: {
        type: 'datetime'
    },
    yaxis: {
        tickAmount: 7,
        labels: {
            formatter: val => `${val.toLocaleString('id-ID')}`,
            offsetX: -17
        }
    },
    grid: {
        padding: {
            left: -10,
            right: 0
        }
    },
    tooltip: {
        x: { format: 'dd MMM yyyy' },
        y: {
            formatter: val => `Rp ${val.toLocaleString('id-ID')}`
        }
    },
    stroke: {
        curve: 'smooth',
        width: 2
    },
    fill: {
        type: 'gradient',
        gradient: {
            shadeIntensity: 1,
            opacityFrom: 0.8,
            opacityTo: 0,
            stops: [0, 90, 100]
        }
    },
    colors: ['#007bff'],
    legend: { show: false },
    dataLabels: { enabled: false }
};

const chart = new ApexCharts(document.querySelector("#chart"), options);
chart.render();

function updateChart(months) {
    const sortedData = [...fullData].sort((a, b) => a.x - b.x);
    const latestDate = sortedData[sortedData.length - 1].x;
    const start = new Date(latestDate);
    start.setMonth(start.getMonth() - months);

    const filtered = fullData.filter(item => item.x >= start && item.x <= latestDate);
    chart.updateSeries([{ name: '', data: filtered }]);
}

document.querySelectorAll('.filter-btn').forEach(btn => {
    btn.addEventListener('click', () => {
        document.querySelectorAll('.filter-btn').forEach(b => b.classList.remove('active'));
        btn.classList.add('active');
        const months = parseInt(btn.dataset.months);
        updateChart(months);
    });
});
updateChart(1);