function createChart(
  chart,
  endpoint,
  xAxisType,
  scaleChart = false,
) {
  async function fetchDataForChart(query) {
    try {
      const apiEndpoint = `${apiURL}/${endpoint}?${query}`;
      const response = await fetch(apiEndpoint);
      if (!response.ok) {
        throw new Error(`HTTP error! status: ${response.status}`);
      }
      const chartData = await response.json();
      console.log(chartData)
      updateChart(chartData);
    } catch (error) {
      console.error("Fetching data failed:", error);
    }
  }

  function updateChart(chartData) {
    var option = {
      tooltip: {
        ...tooltip,
      },
      xAxis: {
        type: xAxisType,
        data: chartData.map((item) => item.date),
      },
    yAxis: [
      {
        type: "value",
        name: "Price (USD)",
        nameGap: 30,
        nameLocation: "middle",
        nameTextStyle: textStyleMain,
        position: "left",
        alignTicks: true,
        axisTick: axisTick,
        axisLine: axisLine,
        splitLine: {
          show: false,
        },
        axisLabel: {
          ...axisLabel,
          formatter(value, index) {
            return nFormatter(value, 0);
          },
        },
      },
    ],
    series: [
      {
        type: "line",
        name: "Price (USD)",
        data: chartData.map((row) => row.price),
      },
    ],
    };
    chart.setOption(option, true);
  }

  // listen for filter events for this target
  document.addEventListener("filterChange", function(event) {
    eventDetail = event.detail;
    if (eventDetail.filterActions.includes("refresh")) {
      chartData = [];
      query = queryConstructor();
      fetchDataForChart(query);
      updateChart(chartData);
    }
  });

  let query = queryConstructor();
  fetchDataForChart(query);
}

document.addEventListener("DOMContentLoaded", function() {
  chartData = [];
  let chartDom = document.getElementById("bitcoin-price-chart");
  let myChart = echarts.init(chartDom);

  const filterPeriods = { "7 day": 7, "28 day": 28, "365 day": 365, "2 years": 730, "5 years": 1826, "10 years": 3652, "all time": 10000 };
  dropDownFilter("days_ago_dropdown_filter", "days_ago", ["bitcoin-price-chart"], filterPeriods, "365 day")

  createChart(
    chart = myChart,
    endpoint = "bitcoin_price_timeseries",
    xAxisType = "category",
  );
});