import { useRef, useEffect, useState, useMemo, ReactNode } from "react"

// @mui material components
import Card from "@mui/material/Card"
import Icon from "@mui/material/Icon"

// ThreeD Garden components
import MDBox from "~/components/mui/MDBox"
import MDTypography from "~/components/mui/MDTypography"

// ThreeD Garden Helper Functions
import gradientChartLine from "~/themes/theme-light/functions/gradientChartLine"

// GradientLineChart configurations
import configs from "~/components/elements/Charts/LineCharts/GradientLineChart/configs"

// ThreeD Garden Base Styles
import colors from "~/themes/theme-light/base/colors"

// react-chartjs-2 components
import { Line } from "react-chartjs-2"
import {
  Chart as ChartJS,
  CategoryScale,
  LinearScale,
  PointElement,
  LineElement,
  Title,
  Tooltip,
  Legend
} from "chart.js"

ChartJS.register(
  CategoryScale,
  LinearScale,
  PointElement,
  LineElement,
  Title,
  Tooltip,
  Legend
)

// Declaring props types for GradientLineChart
interface Props {
  icon?: {
    color?:
    | "primary"
    | "secondary"
    | "info"
    | "success"
    | "warning"
    | "error"
    | "light"
    | "dark"
    component: ReactNode
  }
  title?: string
  description?: string | ReactNode
  height?: string | number
  chart: {
    labels: string[]
    datasets: {
      label: string
      color:
      | "primary"
      | "secondary"
      | "info"
      | "success"
      | "warning"
      | "error"
      | "light"
      | "dark"
      data: number[]
    }[]
  }
  [key: string]: any
}

function GradientLineChart({
  icon,
  title,
  description,
  height,
  chart,
}: Props): JSX.Element {
  const chartRef = useRef(null)
  const defaultChartData = {
    data: {
      labels: ["HEY HEY HEY"],
      datasets: [{ label: "HEY", color: "primary", data: [0] }],
    },
    options: {}
  }
  const [chartData, setChartData] = useState(
    configs(defaultChartData.data.labels, defaultChartData.data.datasets)
  ) // configs({}, [])
  const { data, options }: any = chartData

  useEffect(() => {
    const chartDatasets = chart.datasets
      ? chart.datasets.map((dataset) => ({
        ...dataset,
        tension: 0,
        pointRadius: 0,
        borderWidth: 4,
        borderColor: colors[dataset.color]
          ? colors[dataset.color || "dark"].main
          : colors.dark.main,
        fill: true,
        maxBarThickness: 6,
        backgroundColor: gradientChartLine(
          chartRef.current.children[0],
          colors[dataset.color]
            ? colors[dataset.color || "dark"].main
            : colors.dark.main
        ),
      }))
      : []

    setChartData(configs(chart.labels || [], chartDatasets))
  }, [chart])

  const renderChart = (
    <MDBox py={2} pr={2} pl={icon.component ? 1 : 2}>
      {title || description ? (
        <MDBox display="flex" px={description ? 1 : 0} pt={description ? 1 : 0}>
          {icon.component && (
            <MDBox
              width="4rem"
              height="4rem"
              bgColor={icon.color || "info"}
              variant="gradient"
              coloredShadow={icon.color || "info"}
              borderRadius="xl"
              display="flex"
              justifyContent="center"
              alignItems="center"
              color="white"
              mt={-5}
              mr={2}>
              <Icon fontSize="medium">{icon.component}</Icon>
            </MDBox>
          )}
          <MDBox mt={icon.component ? -2 : 0}>
            {title && <MDTypography variant="h6">{title}</MDTypography>}
            <MDBox mb={2}>
              <MDTypography component="div" variant="button" color="text">
                {description}
              </MDTypography>
            </MDBox>
          </MDBox>
        </MDBox>
      ) : null}
      {useMemo(
        () => (
          <MDBox ref={chartRef} sx={{ height }}>
            <Line data={data} />
            {/* options={options} */}
          </MDBox>
        ),
        [chartData, height]
      )}
    </MDBox>
  )

  return title || description ? <Card>{renderChart}</Card> : renderChart
}

// Declaring default props for GradientLineChart
GradientLineChart.defaultProps = {
  icon: { color: "info", component: "" },
  title: "",
  description: "",
  height: "19.125rem",
}

export default GradientLineChart