(function () {
    var el = document.getElementById('equity-curve-chart');
    var raw = window.__EQUITY_CURVE__;
    if (!el || !raw || !raw.length || !window.LightweightCharts) return;

    function parseTime(s) {
        if (!s) return null;
        var t = String(s).trim().replace(' ', 'T');
        if (t.length === 16) t += ':00';
        var d = new Date(t);
        if (isNaN(d.getTime())) return null;
        return Math.floor(d.getTime() / 1000);
    }

    var data = [];
    var lastTs = 0;
    raw.forEach(function (p) {
        var ts = parseTime(p.time);
        if (ts == null) return;
        if (ts <= lastTs) ts = lastTs + 1;
        lastTs = ts;
        data.push({ time: ts, value: Number(p.value) });
    });
    if (!data.length) {
        el.innerHTML = '<p class="text-muted" style="padding:1rem">暂无资金曲线数据</p>';
        return;
    }

    var c = {
        bg: '#1a1d24',
        text: '#9ca3af',
        grid: '#2d3139',
        line: '#6366f1',
    };
    var chart = LightweightCharts.createChart(el, {
        width: el.clientWidth || 800,
        height: 220,
        layout: {
            background: { type: 'solid', color: c.bg },
            textColor: c.text,
            fontSize: 11,
        },
        grid: {
            vertLines: { color: c.grid },
            horzLines: { color: c.grid },
        },
        rightPriceScale: { borderColor: c.grid },
        timeScale: { borderColor: c.grid, timeVisible: true, secondsVisible: false },
    });
    var series = chart.addLineSeries({
        color: c.line,
        lineWidth: 2,
        priceFormat: { type: 'price', precision: 2, minMove: 0.01 },
    });
    series.setData(data);
    chart.timeScale().fitContent();

    window.addEventListener('resize', function () {
        chart.applyOptions({ width: el.clientWidth || 800 });
    });
})();