import React, { Component } from "react";
import * as am5 from "@amcharts/amcharts5";
import * as am5xy from "@amcharts/amcharts5/xy";
import am5themes_Animated from "@amcharts/amcharts5/themes/Animated";
import CommonUtil from "../../../resources/js/CommonUtil";


export default function Chart8({ data }) {
  const createChart = () => {
    console.log('createChart8 data : ', data);

    /* Chart code */

    // Create root element
    // https://www.amcharts.com/docs/v5/getting-started/#Root_element
    let root = am5.Root.new("Chart8");
    root._logo.dispose();


    // Set themes
    // https://www.amcharts.com/docs/v5/concepts/themes/
    root.setThemes([
      am5themes_Animated.new(root)
    ]);


    // Create chart
    // https://www.amcharts.com/docs/v5/charts/xy-chart/
    let chart = root.container.children.push(am5xy.XYChart.new(root, {
      panX: false,
      panY: false,
      wheelX: "none",
      wheelY: "none"
    }));

    // We don't want zoom-out button to appear while animating, so we hide it
    chart.zoomOutButton.set("forceHidden", true);


    // Create axes
    // https://www.amcharts.com/docs/v5/charts/xy-chart/axes/
    let yRenderer = am5xy.AxisRendererY.new(root, {
      minGridDistance: 30
    });

    yRenderer.grid.template.set("location", 1);

    let yAxis = chart.yAxes.push(am5xy.CategoryAxis.new(root, {
      maxDeviation: 0,
      categoryField: "user_name",
      renderer: yRenderer,
      tooltip: am5.Tooltip.new(root, { themeTags: ["axis"] })
    }));

    let xAxis = chart.xAxes.push(am5xy.ValueAxis.new(root, {
      maxDeviation: 0,
      min: 0,
      extraMax: 0.1,
      renderer: am5xy.AxisRendererX.new(root, {
        strokeOpacity: 0.1
      })
    }));


    // Add series
    // https://www.amcharts.com/docs/v5/charts/xy-chart/series/
    let series = chart.series.push(am5xy.ColumnSeries.new(root, {
      name: "Series 1",
      xAxis: xAxis,
      yAxis: yAxis,
      valueXField: "average",
      categoryYField: "user_name",
      tooltip: am5.Tooltip.new(root, {
        pointerOrientation: "left",
        labelText: "{valueX}"
      })
    }));


    // Rounded corners for columns
    series.columns.template.setAll({
      cornerRadiusTR: 5,
      cornerRadiusBR: 5,
      strokeOpacity: 0
    });

    // Make each column to be of a different color
    series.columns.template.adapters.add("fill", function (fill, target) {
      return chart.get("colors").getIndex(series.columns.indexOf(target));
    });

    series.columns.template.adapters.add("stroke", function (stroke, target) {
      return chart.get("colors").getIndex(series.columns.indexOf(target));
    });


    // Set data
    yAxis.data.setAll(data);
    series.data.setAll(data);
    sortCategoryAxis();

    // Get series item by category
    function getSeriesItem(category) {
      for (var i = 0; i < series.dataItems.length; i++) {
        let dataItem = series.dataItems[i];
        if (dataItem.get("categoryY") == category) {
          return dataItem;
        }
      }
    }

    chart.set("cursor", am5xy.XYCursor.new(root, {
      behavior: "none",
      xAxis: xAxis,
      yAxis: yAxis
    }));


    // Axis sorting
    function sortCategoryAxis() {

      // Sort by value
      series.dataItems.sort(function (x, y) {
        return x.get("valueX") - y.get("valueX"); // descending
        //return y.get("valueY") - x.get("valueX"); // ascending
      })

      // Go through each axis item
      am5.array.each(yAxis.dataItems, function (dataItem) {
        // get corresponding series item
        let seriesDataItem = getSeriesItem(dataItem.get("category"));

        if (seriesDataItem) {
          // get index of series data item
          let index = series.dataItems.indexOf(seriesDataItem);
          // calculate delta position
          let deltaPosition = (index - dataItem.get("index", 0)) / series.dataItems.length;
          // set index to be the same as series data item index
          dataItem.set("index", index);
          // set deltaPosition instanlty
          dataItem.set("deltaPosition", -deltaPosition);
          // animate delta position to 0
          dataItem.animate({
            key: "deltaPosition",
            to: 0,
            duration: 1000,
            easing: am5.ease.out(am5.ease.cubic)
          })
        }
      });

      // Sort axis items by index.
      // This changes the order instantly, but as deltaPosition is set,
      // they keep in the same places and then animate to true positions.
      yAxis.dataItems.sort(function (x, y) {
        return x.get("index") - y.get("index");
      });
    }

    // Make stuff animate on load
    // https://www.amcharts.com/docs/v5/concepts/animations/
    series.appear(1000);
    chart.appear(1000, 100);
  }

  React.useEffect(() => {
    console.log('React.useEffect chart8 data : ', data);
    if (CommonUtil.isEmpty(data) == false) {
      createChart();
    }
  }, [data])

  return (
    <div id="Chart8" style={{ width: "100%", height: "100%" }}></div>
  )
}