import React from "react";
import { useEffect, useState } from "react";
import { useSelector } from "react-redux";

import {
  useEmployeesByProjectAllocated,
  useProjects,
} from "../../hooks/useProjects";
import ReactApexChart from "react-apexcharts";
import Chart from "react-apexcharts";

const ProjectOverview = ({ project }) => {
  const { projects } = useProjects();
  const [current_project, setCurrentProject] = useState(
    projects.find((pro) => pro.id == project)
  );

  const selectedProject = useSelector(
    (store) => store.localVariables.projectId
  );

  const getProgressInPercentage = (planned, completed) => {
    if (completed && planned) return (completed * 100) / planned;
    else return 0;
  };

  //let project_detail = projects.find((pro) => pro.id == project);

  // Utility function to check if a number has a decimal part
  const hasDecimal = (num) => {
    // Convert to string and check for a decimal point
    // Or, check if the number is not equal to its integer part
    return num % 1 !== 0;
  };

  // FormattedNumber component to display numbers with conditional decimal places
  function FormattedNumber(value, locale = "en-US") {
    // Ensure the value is a number
    const numericValue = parseFloat(value);

    // Handle non-numeric values gracefully
    if (isNaN(numericValue)) {
      return 0;
    }

    let options = {};

    // Determine formatting options based on whether the number has a decimal part
    if (hasDecimal(numericValue)) {
      // If it has a decimal, format to exactly two decimal places
      options = {
        minimumFractionDigits: 2,
        maximumFractionDigits: 2,
      };
    } else {
      // If it's a whole number, format to zero decimal places
      options = {
        minimumFractionDigits: 0,
        maximumFractionDigits: 0,
      };
    }

    // Use Intl.NumberFormat for robust and locale-aware formatting
    const formattedString = new Intl.NumberFormat(locale, options).format(
      numericValue
    );

    return formattedString;
  }

  const getRadialBarOptions = (percentage) => {
    return {
      chart: {
        height: 350,
        type: "radialBar",
        sparkline: {
          // Often used with gauges for a minimalist look
          enabled: true,
        },
      },
      plotOptions: {
        radialBar: {
          startAngle: -90, // Start the gauge from the left (bottom-left)
          endAngle: 90, // End the gauge at the right (bottom-right)
          hollow: {
            size: "70%", // Size of the hollow part of the bar
          },
          dataLabels: {
            show: true,
            name: {
              show: true,
              fontSize: "16px",
              fontFamily: "Inter, sans-serif",
              color: "#6B7280", // Tailwind gray-500
              offsetY: -10,
            },
            value: {
              show: true,
              fontSize: "28px",
              fontFamily: "Inter, sans-serif",
              color: "#374151", // Tailwind gray-700
              offsetY: 20,
              formatter: function (val) {
                return FormattedNumber(val) + "%"; // Format value as percentage
              },
            },
          },
          track: {
            background: "#E5E7EB", // Tailwind gray-200 for the track
            strokeWidth: "97%",
            margin: 5, // margin in between segments
            dropShadow: {
              enabled: true,
              top: 2,
              left: 0,
              blur: 4,
              opacity: 0.15,
            },
          },
        },
      },
      fill: {
        type: "gradient",
        gradient: {
          shade: "dark",
          type: "horizontal",
          shadeIntensity: 0.5,
          gradientToColors: ["#6366F1"], // Tailwind indigo-500
          inverseColors: true,
          opacityFrom: 1,
          opacityTo: 1,
          stops: [0, 100],
        },
      },
      stroke: {
        lineCap: "round", 
      },
      labels: ["Progress"], 
      series: [percentage], 
    };
  };
  const [radialPercentage, setRadialPercentage] = useState(75); // Initial percentage

  const radialBarOptions = getRadialBarOptions(radialPercentage);

  useEffect(() => {
    if (current_project) {
      let val = getProgressInPercentage(
        current_project.plannedWork,
        current_project.completedWork
      );
      setRadialPercentage(val);
    } else setRadialPercentage(0);
  }, [current_project]);

  useEffect(() => {
    setCurrentProject(projects.find((pro) => pro.id == selectedProject));
    if (current_project) {
      let val = getProgressInPercentage(
        current_project.plannedWork,
        current_project.completedWork
      );
      setRadialPercentage(val);
    } else setRadialPercentage(0);
  }, [selectedProject]);

  return (
    <div className="card" style={{ minHeight: "490px" }}>
      <div className="card-header text-start">
        <h6 className="card-action-title mb-0">
          {" "}
          <i className="fa fa-line-chart rounded-circle text-primary"></i>
          <span className="ms-2">Project Statistics</span>
        </h6>
      </div>
     <div className="card-body">
  <ul className="list-unstyled m-0 p-0">
    <li className="d-flex flex-wrap">
      <div className="w-100 d-flex flex-wrap">
        {/* Centered Chart */}
        <div className="w-100 d-flex justify-content-center mb-3">
          <div >
            <Chart
              options={radialBarOptions}
              series={radialBarOptions.series}
              type="radialBar"
              height="100%"
            />
          </div>
        </div>

        {/* Info Section */}
        <div className="mb-2" style={{ flex: "1 1 auto" }}>
          <div>
            {/* Tasks Planned */}
            <div className="d-flex align-items-center mb-3">
              <div className="avatar me-2">
                <span className="avatar-initial rounded-2 bg-label-primary">
                  <i className="bx bx-check text-primary fs-4"></i>
                </span>
              </div>
              <div className="d-flex flex-column text-start">
                <small className="fw-bold">Tasks Planned</small>
                <h5 className="mb-0">
                  {FormattedNumber(current_project?.plannedWork)}
                </h5>
              </div>
            </div>

            {/* Tasks Completed */}
            <div className="d-flex align-items-center mb-3">
              <div className="avatar me-2">
                <span className="avatar-initial rounded-2 bg-label-info">
                  <i className="bx bx-star text-info fs-4"></i>
                </span>
              </div>
              <div className="d-flex flex-column text-start">
                <small className="fw-bold">Tasks Completed</small>
                <h5 className="mb-0">
                  {FormattedNumber(current_project?.completedWork)}
                </h5>
              </div>
            </div>

            {/* Team Size */}
            <div className="d-flex align-items-center">
              <div className="avatar me-2">
                <span className="avatar-initial rounded-2 bg-label-primary">
                  <i className="bx bx-group text-primary fs-4"></i>
                </span>
              </div>
              <div className="d-flex flex-column text-start">
                <small className="fw-bold">Current Team Size</small>
                <h5 className="mb-0">
                  {FormattedNumber(current_project?.teamSize)}
                </h5>
              </div>
            </div>
          </div>
        </div>
      </div>
    </li>
  </ul>
</div>

    </div>
  );
};

export default ProjectOverview;