import { useState, useEffect, useCallback, useRef } from "react";
import { Card, CardContent } from "~/components/ui/card";
import { Button } from "~/components/ui/button";
import { Badge } from "~/components/ui/badge";
import { Checkbox } from "~/components/ui/checkbox";
import { CustomBarChart } from "~/components/ui/custom-bar-chart";
import moment from "moment-jalaali";
import type { BarChartData } from "~/components/ui/custom-bar-chart";
import {
  Table,
  TableBody,
  TableCell,
  TableHead,
  TableHeader,
  TableRow,
} from "~/components/ui/table";
import {
  Dialog,
  DialogContent,
  DialogHeader,
  DialogTitle,
} from "~/components/ui/dialog";
import {
  BarChart,
  Bar,
  XAxis,
  YAxis,
  CartesianGrid,
  Tooltip,
  ResponsiveContainer,
  LineChart,
  Line,
  Rectangle,
  Legend,
} from "recharts";

import apiService from "~/lib/api";
import toast from "react-hot-toast";
import {
  LoaderCircle,
  TrendingUp,
  Key,
  Sparkle,
  Zap,
  Flame,
  Building2,
  PickaxeIcon,
  UsersIcon,
  UserIcon,
  RefreshCw,
} from "lucide-react";
import DashboardLayout from "../layout";

moment.loadPersian({ usePersianDigits: true });
interface ProcessInnovationData {
  project_no: string;
  title: string;
  project_status: string;
  project_rating: string;
  reduce_prevention_production_stops: string;
  throat_removal: string;
  amount_currency_reduction: string;
  Reduce_rate_failure: string;
  observer: string;
}

interface SortConfig {
  field: string;
  direction: "asc" | "desc";
}

interface StatsCard {
  id: string;
  title: string;
  percent: {
    value: number;
    description: string;
  };
  total: {
    value: number;
    description: string;
  };
}

interface InnovationStats {
  totalProjects: number;
  averageScore: number;
  productionStopsPreventionSum: number; // مجموع جلوگیری از توقفات تولید
  bottleneckRemovalCount: number; // تعداد رفع گلوگاه
  currencyReductionSum: number; // مجموع کاهش ارز بری (میلیون ریال)
  frequentFailuresReductionSum: number; // مجموع کاهش خرابی های پرتکرار
  percentProductionStops: number; // درصد مقایسه‌ای جلوگیری از توقفات تولید
  percentBottleneckRemoval: number; // درصد مقایسه‌ای رفع گلوگاه
  percentCurrencyReduction: number; // درصد مقایسه‌ای کاهش ارز بری
  percentFailuresReduction: number; // درصد مقایسه‌ای کاهش خرابی‌های پرتکرار
}

interface Params {
  icon: any;
  label: string;
  value: string;
  suffix: string;
}
interface RecycleParams {
  water: Params;
  food: Params;
  power: Params;
  oil: Params;
}

const columns = [
  { key: "select", label: "", sortable: false, width: "50px" },
  { key: "project_no", label: "شماره پروژه", sortable: true, width: "140px" },
  { key: "title", label: "عنوان پروژه", sortable: true, width: "400px" },
  {
    key: "project_status",
    label: "وضعیت پروژه",
    sortable: true,
    width: "140px",
  },
  {
    key: "project_rating",
    label: "امتیاز پروژه",
    sortable: true,
    width: "140px",
  },
  { key: "details", label: "جزئیات پروژه", sortable: false, width: "140px" },
];

export function GreenInnovationPage() {
  const [projects, setProjects] = useState<ProcessInnovationData[]>([]);
  const [loading, setLoading] = useState(false);
  const [loadingMore, setLoadingMore] = useState(false);
  const [currentPage, setCurrentPage] = useState(1);
  const [pageSize] = useState(20);
  const [hasMore, setHasMore] = useState(true);
  const [totalCount, setTotalCount] = useState(0);
  const [actualTotalCount, setActualTotalCount] = useState(0);
  const [statsLoading, setStatsLoading] = useState(false);
  const [stats, setStats] = useState<InnovationStats>({
    totalProjects: 0,
    averageScore: 0,
    productionStopsPreventionSum: 0,
    bottleneckRemovalCount: 0,
    currencyReductionSum: 0,
    frequentFailuresReductionSum: 0,
    percentProductionStops: 0,
    percentBottleneckRemoval: 0,
    percentCurrencyReduction: 0,
    percentFailuresReduction: 0,
  });
  const [sortConfig, setSortConfig] = useState<SortConfig>({
    field: "start_date",
    direction: "asc",
  });
  const [selectedProjects, setSelectedProjects] = useState<Set<string>>(
    new Set()
  );
  const [detailsDialogOpen, setDetailsDialogOpen] = useState(false);
  const [selectedProjectDetails, setSelectedProjectDetails] =
    useState<ProcessInnovationData | null>(null);
  const [recycleParams, setRecycleParams] = useState<RecycleParams>({
    water: {
      icon: <Key className="text-emerald-400" size={"18px"} />,
      label: "آب",
      value: "1,520",
      suffix: "لیتر",
    },
    food: {
      icon: <Sparkle className="text-emerald-400" size={"18px"} />,
      label: "خوراک",
      value: "520",
      suffix: "تن",
    },
    oil: {
      icon: <Flame className="text-emerald-400" size={"18px"} />,
      label: "سوخت",
      value: "250",
      suffix: "متر مربع",
    },
    power: {
      icon: <Zap className="text-emerald-400" size={"18px"} />,
      label: "برق",
      value: "650",
      suffix: "میلیون مگاوات",
    },
  });
  const observerRef = useRef<HTMLDivElement>(null);
  const fetchingRef = useRef(false);

  // Selection handlers
  const handleSelectAll = () => {
    if (selectedProjects.size === projects.length) {
      setSelectedProjects(new Set());
    } else {
      setSelectedProjects(new Set(projects.map((p) => p.project_no)));
    }
  };

  const handleSelectProject = (projectNo: string) => {
    const newSelected = new Set(selectedProjects);
    if (newSelected.has(projectNo)) {
      newSelected.delete(projectNo);
    } else {
      newSelected.add(projectNo);
    }
    setSelectedProjects(newSelected);
  };

  const handleProjectDetails = (project: ProcessInnovationData) => {
    console.log(project);
    setSelectedProjectDetails(project);
    setDetailsDialogOpen(true);
  };

  const formatNumber = (value: string | number) => {
    if (!value) return "0";
    const numericValue = typeof value === "string" ? parseFloat(value) : value;
    if (isNaN(numericValue)) return "0";
    return new Intl.NumberFormat("fa-IR").format(numericValue);
  };

  // Stats cards data - computed from projects data
  const statsCards: StatsCard[] = [
    {
      id: "reduce-pollution",
      title: "کاهش آلایندگی",
      total: {
        value: 10.45,
        description: "میلیون ریال",
      },
      //    formatNumber(
      //     stats.productionStopsPreventionSum.toFixed?.(1) ??
      //       stats.productionStopsPreventionSum
      //   ),

      percent: {
        value: 10,
        description: "درصد به کل درآمد",
      },
    },
    {
      id: "reduce-junkfull",
      title: "کاهش ضایعات",
      total: {
        value: 10,
        description: "میلیون ریال",
      },
      percent: {
        value: 10,
        description: "درصد به کل درآمد",
      },
    },

    // {
    //   id: "currency-reduction",
    //   title: "کاهش ارز بری",
    //   value: formatNumber(
    //     stats.currencyReductionSum.toFixed?.(0) ?? stats.currencyReductionSum
    //   ),
    //   description: "دلار کاهش یافته",
    //   icon: <DollarSign />,
    //   color: "text-emerald-400",
    // },
    // {
    //   id: "frequent-failures-reduction",
    //   title: "کاهش خرابی های پرتکرار",
    //   value: formatNumber(
    //     stats.frequentFailuresReductionSum.toFixed?.(1) ??
    //       stats.frequentFailuresReductionSum
    //   ),
    //   description: "مجموع درصد کاهش خرابی",
    //   icon: <Wrench />,
    //   color: "text-emerald-400",
    // },
  ];

  const fetchProjects = async (reset = false) => {
    if (fetchingRef.current) {
      return;
    }

    try {
      fetchingRef.current = true;

      if (reset) {
        setLoading(true);
        setCurrentPage(1);
      } else {
        setLoadingMore(true);
      }

      const pageToFetch = reset ? 1 : currentPage;

      const response = await apiService.select({
        ProcessName: "project",
        OutputFields: [
          "project_no",
          "title",
          "project_status",
          "project_rating",
          "throat_removal",
          "reduce_prevention_production_stops",
          "amount_currency_reduction",
          "Reduce_rate_failure",
          "project_description",
          "start_date",
          "done_date",
          "approved_budget",
          "observer",
        ],
        Sorts: [["start_date", "asc"]],
        Conditions: [["type_of_innovation", "=", "نوآوری در فرآیند"]],
        Pagination: { PageNumber: pageToFetch, PageSize: pageSize },
      });

      console.log(JSON.parse(response.data));
      if (response.state === 0) {
        const dataString = response.data;
        if (dataString && typeof dataString === "string") {
          try {
            const parsedData = JSON.parse(dataString);
            if (Array.isArray(parsedData)) {
              if (reset) {
                setProjects(parsedData);
                setTotalCount(parsedData.length);
              } else {
                setProjects((prev) => [...prev, ...parsedData]);
                setTotalCount((prev) => prev + parsedData.length);
              }
              setHasMore(parsedData.length === pageSize);
            } else {
              if (reset) {
                setProjects([]);
                setTotalCount(0);
              }
              setHasMore(false);
            }
          } catch (parseError) {
            console.error("Error parsing project data:", parseError);
            if (reset) {
              setProjects([]);
              setTotalCount(0);
            }
            setHasMore(false);
          }
        } else {
          if (reset) {
            setProjects([]);
            setTotalCount(0);
          }
          setHasMore(false);
        }
      } else {
        toast.error(response.message || "خطا در دریافت اطلاعات پروژه‌ها");
        if (reset) {
          setProjects([]);
          setTotalCount(0);
        }
        setHasMore(false);
      }
    } catch (error) {
      console.error("Error fetching projects:", error);
      toast.error("خطا در دریافت اطلاعات پروژه‌ها");
      if (reset) {
        setProjects([]);
        setTotalCount(0);
      }
      setHasMore(false);
    } finally {
      setLoading(false);
      setLoadingMore(false);
      fetchingRef.current = false;
    }
  };

  const loadMore = useCallback(() => {
    if (!loadingMore && hasMore && !loading) {
      setCurrentPage((prev) => prev + 1);
    }
  }, [loadingMore, hasMore, loading]);

  useEffect(() => {
    fetchProjects(true);
    fetchTotalCount();
    fetchStats();
  }, [sortConfig]);

  useEffect(() => {
    if (currentPage > 1) {
      fetchProjects(false);
    }
  }, [currentPage]);

  useEffect(() => {
    const scrollContainer = document.querySelector(".overflow-auto");

    const handleScroll = () => {
      if (!scrollContainer || !hasMore || loadingMore) return;

      const { scrollTop, scrollHeight, clientHeight } = scrollContainer;
      const scrollPercentage = (scrollTop + clientHeight) / scrollHeight;

      if (scrollPercentage >= 0.9) {
        loadMore();
      }
    };

    if (scrollContainer) {
      scrollContainer.addEventListener("scroll", handleScroll);
    }

    return () => {
      if (scrollContainer) {
        scrollContainer.removeEventListener("scroll", handleScroll);
      }
    };
  }, [loadMore, hasMore, loadingMore]);

  const handleSort = (field: string) => {
    fetchingRef.current = false;
    setSortConfig((prev) => ({
      field,
      direction:
        prev.field === field && prev.direction === "asc" ? "desc" : "asc",
    }));
    setCurrentPage(1);
    setProjects([]);
    setHasMore(true);
  };

  const fetchTotalCount = async () => {
    try {
      const response = await apiService.select({
        ProcessName: "project",
        OutputFields: ["count(project_no)"],
        Conditions: [["type_of_innovation", "=", "نوآوری در فرآیند"]],
      });

      if (response.state === 0) {
        const dataString = response.data;
        if (dataString && typeof dataString === "string") {
          try {
            const parsedData = JSON.parse(dataString);
            if (Array.isArray(parsedData) && parsedData[0]) {
              const count = parsedData[0].project_no_count || 0;
              setActualTotalCount(count);
              // Keep stats in sync if backend stats not yet loaded
              setStats((prev) => ({ ...prev, totalProjects: count }));
            }
          } catch (parseError) {
            console.error("Error parsing count data:", parseError);
          }
        }
      }
    } catch (error) {
      console.error("Error fetching total count:", error);
    }
  };

  // Fetch aggregated stats from backend call API (innovation_process_function)
  const fetchStats = async () => {
    try {
      setStatsLoading(true);
      const raw = await apiService.call<any>({
        innovation_process_function: {},
      });

      let payload: any = raw?.data;
      if (typeof payload === "string") {
        try {
          payload = JSON.parse(payload);
        } catch {}
      }

      const parseNum = (v: unknown): number => {
        if (v == null) return 0;
        if (typeof v === "number") return v;
        if (typeof v === "string") {
          const cleaned = v.replace(/,/g, "").trim();
          const n = parseFloat(cleaned);
          return isNaN(n) ? 0 : n;
        }
        return 0;
      };

      const normalized: InnovationStats = {
        totalProjects: parseNum(payload?.count_innovation_process_projects),
        averageScore: parseNum(payload?.average_project_score),
        productionStopsPreventionSum: parseNum(
          payload?.sum_stopping_production
        ),
        bottleneckRemovalCount: parseNum(payload?.count_throat_removal),
        currencyReductionSum: parseNum(payload?.sum_reduction_value_currency),
        frequentFailuresReductionSum: parseNum(
          payload?.sum_reducing_breakdowns
        ),
        percentProductionStops: parseNum(
          payload?.percent_sum_stopping_production
        ),
        percentBottleneckRemoval: parseNum(payload?.percent_throat_removal),
        percentCurrencyReduction: parseNum(
          payload?.percent_reduction_value_currency
        ),
        percentFailuresReduction: parseNum(
          payload?.percent_reducing_breakdowns
        ),
      };

      setStats(normalized);
    } catch (error) {
      console.error("Error fetching stats:", error);
    } finally {
      setStatsLoading(false);
    }
  };

  //   const handleRefresh = () => {
  //     fetchingRef.current = false;
  //     setCurrentPage(1);
  //     setProjects([]);
  //     setHasMore(true);
  //     fetchProjects(true);
  //     fetchTotalCount();
  //     fetchStats();
  //   };

  //   const formatCurrency = (amount: string | number) => {
  //     if (!amount) return "0 ریال";
  //     const numericAmount =
  //       typeof amount === "string"
  //         ? parseFloat(amount.replace(/,/g, ""))
  //         : amount;
  //     if (isNaN(numericAmount)) return "0 ریال";
  //     return new Intl.NumberFormat("fa-IR").format(numericAmount) + " ریال";
  //   };

  //   const formatPercentage = (value: string | number) => {
  //     if (!value) return "0%";
  //     const numericValue = typeof value === "string" ? parseFloat(value) : value;
  //     if (isNaN(numericValue)) return "0%";
  //     return `${numericValue.toFixed(1)}%`;
  //   };

  //   const getStatusColor = (status: string) => {
  //     switch (status?.toLowerCase()) {
  //       case "فعال":
  //         return "#3AEA83";
  //       case "متوقف":
  //         return "#F76276";
  //       case "تکمیل شده":
  //         return "#32CD32";
  //       default:
  //         return "#6B7280";
  //     }
  //   };

  //   const getRatingColor = (rating: string) => {
  //     const ratingNum = parseFloat(rating);
  //     if (isNaN(ratingNum)) return "#6B7280";

  //     if (ratingNum >= 8) return "#3AEA83";
  //     if (ratingNum >= 6) return "#69C8EA";
  //     if (ratingNum >= 4) return "#FFD700";
  //     return "#F76276";
  //   };

  const renderCellContent = (item: ProcessInnovationData, column: any) => {
    const value = item[column.key as keyof ProcessInnovationData];

    switch (column.key) {
      case "select":
        return (
          <Checkbox
            checked={selectedProjects.has(item.project_no)}
            onCheckedChange={() => handleSelectProject(item.project_no)}
            className="data-[state=checked]:bg-emerald-600 data-[state=checked]:border-emerald-600"
          />
        );
      case "details":
        return (
          <Button
            variant="ghost"
            size="sm"
            onClick={() => handleProjectDetails(item)}
            className="text-emerald-400 hover:text-emerald-300 hover:bg-emerald-500/20 p-2 h-auto"
          >
            جزئیات بیشتر
          </Button>
        );
      case "amount_currency_reduction":
        return (
          <span className="font-medium text-emerald-400">
            {formatCurrency(String(value))}
          </span>
        );
      case "project_no":
        return (
          <Badge variant="outline" className="font-mono">
            {String(value)}
          </Badge>
        );
      case "title":
        return <span className="font-medium text-white">{String(value)}</span>;
      case "project_status":
        return (
          <Badge
            variant="outline"
            className="font-medium border-2"
            style={{
              border: "none",
            }}
          >
            {String(value)}
          </Badge>
        );
      case "project_rating":
        return (
          <Badge variant="outline" className="text-lg text-center border-none">
            {formatNumber(String(value))}
          </Badge>
        );
      case "reduce_prevention_production_stops":
      case "throat_removal":
      case "Reduce_rate_failure":
        return (
          <span className="font-medium text-blue-400">
            {formatNumber(String(value))}
          </span>
        );
      default:
        return <span className="text-gray-300">{String(value) || "-"}</span>;
    }
  };

  const data = [
    { name: recycleParams.water.label, pv: 70, amt: 80 },
    { name: recycleParams.power.label, pv: 45, amt: 60 },
    { name: recycleParams.oil.label, pv: 90, amt: 75 },
    { name: recycleParams.food.label, pv: 30, amt: 50 },
  ];

  return (
    <DashboardLayout title="نوآوری سبز">
      <div className="p-6 space-y-4">
        {/* Stats Cards */}
        <div className="flex gap-6 mb-6">
          <div className="flex flex-col gap-11  h-full w-1/2">
            {/* Stats Grid */}
            {loading || statsLoading
              ? // Loading skeleton for stats cards - matching new design
                Array.from({ length: 2 }).map((_, index) => (
                  <Card
                    key={`skeleton-${index}`}
                    className="bg-[linear-gradient(to_bottom_left,#464861,50%,#111628)] backdrop-blur-sm rounded-2xl overflow-hidden"
                  >
                    <CardContent className="p-2">
                      <div className="flex flex-col justify-between gap-2 h-full">
                        <div className="flex justify-between items-center border-b-2 border-gray-500/20">
                          <div
                            className="h-6 bg-gray-600 rounded animate-pulse"
                            style={{ width: "60%" }}
                          />
                          <div className="p-3 bg-emerald-500/20 rounded-full w-fit">
                            <div className="w-6 h-6 bg-gray-600 rounded animate-pulse" />
                          </div>
                        </div>
                        <div className="flex items-center justify-center flex-col p-1">
                          <div
                            className="h-8 bg-gray-600 rounded mb-1 animate-pulse"
                            style={{ width: "40%" }}
                          />
                          <div
                            className="h-4 bg-gray-600 rounded animate-pulse"
                            style={{ width: "80%" }}
                          />
                        </div>
                      </div>
                    </CardContent>
                  </Card>
                ))
              : statsCards.map((card) => (
                  <Card
                    key={card.id}
                    className="bg-[linear-gradient(to_bottom_left,#464861,50%,#111628)] backdrop-blur-sm border-gray-700/50"
                  >
                    <CardContent className="p-0 h-full">
                      <div className="flex flex-col justify-between gap-2 h-full">
                        <div className="flex justify-between items-center border-b-2 border-gray-500/20 ">
                          <h3 className="text-lg font-bold text-white font-persian p-4">
                            {card.title}
                          </h3>
                        </div>
                        <div className="flex items-center justify-between p-6 flex-row-reverse">
                          <div className="flex flex-col">
                            <span className="text-3xl font-bold text-emerald-400 mb-1">
                              % {card.percent.value}
                            </span>
                            <span className="text-sm text-gray-400 font-persian">
                              {card.percent.description}
                            </span>
                          </div>
                          <b className="block w-0.5 h-12 bg-gray-600 rotate-45" />
                          <div className="flex flex-col">
                            <span className="text-3xl font-bold text-emerald-400 mb-1">
                              {card.total.value}
                            </span>
                            <span className="text-sm text-gray-400 font-persian">
                              {card.total.description}
                            </span>
                          </div>
                        </div>
                      </div>
                    </CardContent>
                  </Card>
                ))}
          </div>

          {/* Process Impacts Chart */}
          <Card className="bg-[linear-gradient(to_bottom_left,#464861,50%,#111628)] backdrop-blur-sm rounded-2xl w-full overflow-hidden">
            <CardContent className="p-0 h-full overflow-hidden">
              <div className="border-b-2 border-gray-500/20">
                <div className="w-full p-4 px-6">
                  <span>بازیافت و بازیابی منابع</span>
                </div>
              </div>
              <div className="content grid gap-6  h-max p-8 box-border items-center justify-between sm:grid-cols-1 sm:overflow-auto xl:overflow-hidden xl:grid-cols-[30%_70%]">
                <div className="params flex flex-col gap-3.5">
                  {Object.entries(recycleParams).map((el, index) => {
                    return (
                      <div className="param flex flex-row justify-between items-center">
                        <div className="flex flex-row gap-2">
                          {el[1].icon}
                          <span className="font-normal text-sm">
                            {el[1].label}:
                          </span>
                        </div>
                        <div className="flex flex-row gap-1.5 items-center">
                          <span className="text-sm font-normal">
                            {el[1].value}
                          </span>
                          <span className="text-sm">{el[1].suffix}</span>
                        </div>
                      </div>
                    );
                  })}
                </div>

                <div className="h-72 w-[35rem]">
                  <ResponsiveContainer width="100%" height="100%">
                    <BarChart
                      width={500}
                      height={300}
                      data={data}
                      margin={{
                        top: 5,
                        right: 30,
                        left: 20,
                        bottom: 5,
                      }}
                    >
                      <CartesianGrid
                        stroke="#374151"
                        strokeDasharray="0"
                        vertical={false} // خط‌های عمودی (از محور X) بمونه
                        // horizontal={false} // خط‌های افقی (از محور Y) حذف میشه
                      />
                      <XAxis
                        dataKey="name"
                        axisLine={false} // خط اصلی محور X محو میشه
                        tickLine={false}
                        tick={{
                          fill: "#fff",
                          fontSize: 14,
                          fontWeight: "normal",
                          dy: 10, // جابجایی عمودی (مثبت = پایین‌تر، منفی = بالاتر)
                        }}
                      />
                      <YAxis
                        type="number"
                        domain={[0, 100]}
                        axisLine={false}
                        tickLine={false}
                        tick={{
                          fill: "#99a1af", // رنگ متن
                          fontSize: 14, // سایز فونت
                          // fontWeight: "bold", // ضخامت
                          dx: -30, // جابجایی افقی (اعداد نزدیک‌تر یا دورتر از محور)
                          // dy:-1
                        }}
                        tickFormatter={(val) => `${val}%`}
                      />
                      <Bar
                        dataKey="pv"
                        fill="#3AEA83"
                        radius={[20, 20, 0, 0]}
                        barSize={14}
                        label={{
                          position: "top",
                          fill: "#fff",
                          fontWeight: "bold",
                          formatter: (value) => `${value}%`
                        }}
                      />
                    </BarChart>
                  </ResponsiveContainer>
                </div>
              </div>
            </CardContent>
          </Card>

          <Card className="w-1/3 bg-[linear-gradient(to_bottom_left,#464861,50%,#111628)] backdrop-blur-sm rounded-2xl overflow-hidden">
            <CardContent className="p-0">
              <div className="border-b-2 border-gray-500/20">
                <div className="flex flex-row justify-between w-full p-4 px-6">
                  <span>استاندارد ها و مقررات</span>
                  <TrendingUp />
                </div>
              </div>
              <div className="flex flex-col gap-3 p-4 max-h-[22rem] overflow-y-scroll">
                {Array.from({ length: 10 }, (index) => {
                  return (
                    <div key={`${index}-1`} className="flex gap-2">
                      <LoaderCircle
                        size={"18px"}
                        className="text-emerald-400"
                      />
                      <span>استاندارد Iso 2005</span>
                    </div>
                  );
                })}
              </div>
            </CardContent>
          </Card>
        </div>

        {/* Data Table */}
        <Card className="bg-transparent backdrop-blur-sm rounded-2xl overflow-hidden">
          <CardContent className="p-0">
            <div className="relative">
              <Table containerClassName="overflow-auto custom-scrollbar max-h-[calc(90vh-400px)]">
                <TableHeader>
                  <TableRow className="bg-[#3F415A]">
                    {columns.map((column) => (
                      <TableHead
                        key={column.key}
                        className="text-right font-persian whitespace-nowrap text-gray-200 font-medium sticky top-0 z-20 bg-[#3F415A]"
                        style={{ width: column.width }}
                      >
                        {column.key === "select" ? (
                          <div className="flex items-center justify-center">
                            <Checkbox
                              checked={
                                selectedProjects.size === projects.length &&
                                projects.length > 0
                              }
                              onCheckedChange={handleSelectAll}
                              className="data-[state=checked]:bg-emerald-600 data-[state=checked]:border-emerald-600"
                            />
                          </div>
                        ) : column.sortable ? (
                          <button
                            onClick={() => handleSort(column.key)}
                            className="flex items-center gap-2"
                          >
                            <span>{column.label}</span>
                            {sortConfig.field === column.key ? (
                              sortConfig.direction === "asc" ? (
                                <ChevronUp className="w-4 h-4" />
                              ) : (
                                <ChevronDown className="w-4 h-4" />
                              )
                            ) : (
                              <div className="w-4 h-4" />
                            )}
                          </button>
                        ) : (
                          column.label
                        )}
                      </TableHead>
                    ))}
                  </TableRow>
                </TableHeader>
                <TableBody>
                  {loading ? (
                    // Skeleton loading rows (compact)
                    Array.from({ length: 10 }).map((_, index) => (
                      <TableRow
                        key={`skeleton-${index}`}
                        className="text-sm leading-tight h-8"
                      >
                        {columns.map((column) => (
                          <TableCell
                            key={column.key}
                            className="text-right whitespace-nowrap border-emerald-500/20 py-1 px-2"
                          >
                            <div className="flex items-center gap-2">
                              <div className="w-2.5 h-2.5 bg-gray-600 rounded-full animate-pulse" />
                              <div
                                className="h-2.5 bg-gray-600 rounded animate-pulse"
                                style={{ width: `${Math.random() * 60 + 40}%` }}
                              />
                            </div>
                          </TableCell>
                        ))}
                      </TableRow>
                    ))
                  ) : projects.length === 0 ? (
                    <TableRow>
                      <TableCell
                        colSpan={columns.length}
                        className="text-center py-8"
                      >
                        <span className="text-gray-400 font-persian">
                          هیچ پروژه‌ای یافت نشد
                        </span>
                      </TableCell>
                    </TableRow>
                  ) : (
                    projects.map((project, index) => (
                      <TableRow
                        key={`${project.project_no}-${index}`}
                        className="text-sm leading-tight h-8"
                      >
                        {columns.map((column) => (
                          <TableCell
                            key={column.key}
                            className={`text-right whitespace-nowrap border-emerald-500/20 py-1 px-2 ${column.key === "select" ? "flex justify-center items-center" : ""}`}
                          >
                            {renderCellContent(project, column)}
                          </TableCell>
                        ))}
                      </TableRow>
                    ))
                  )}
                </TableBody>
              </Table>
            </div>

            {/* Infinite scroll trigger */}
            <div ref={observerRef} className="h-auto">
              {loadingMore && (
                <div className="flex items-center justify-center py-1">
                  <div className="flex items-center gap-2">
                    <RefreshCw className="w-4 h-4 animate-spin text-emerald-400" />
                    <span className="font-persian text-gray-300 text-xs"></span>
                  </div>
                </div>
              )}
            </div>
          </CardContent>

          {/* Selection Summary */}
          {/* {selectedProjects.size > 0 && (
              <div className="px-4 py-3 bg-emerald-500/10 border-t border-emerald-500/20">
                <div className="flex items-center justify-between">
                  <div className="flex items-center gap-3">
                    <div className="w-2 h-2 bg-emerald-500 rounded-full"></div>
                    <span className="text-emerald-400 font-medium font-persian">
                      {selectedProjects.size} پروژه انتخاب شده
                    </span>
                  </div>
                  <div className="flex items-center gap-2">
                    <Button
                      variant="outline"
                      size="sm"
                      onClick={() => setSelectedProjects(new Set())}
                      className="border-emerald-500/30 text-emerald-400 hover:bg-emerald-500/20 hover:text-emerald-300"
                    >
                      لغو انتخاب
                    </Button>
                  </div>
                </div>
              </div>
            )} */}
          {/* Footer */}
          <div className="p-2 px-4 bg-gray-700/50">
            <div className="grid grid-cols-6 gap-4 text-sm text-gray-300 font-persian">
              <div className="text-center gap-2 items-center flex">
                <div className="text-base text-gray-401 mb-1">
                  {" "}
                  کل پروژه ها :{" "}
                  {formatNumber(stats.totalProjects || actualTotalCount)}
                </div>
              </div>
              {/* Project number column - empty */}
              <div></div>
              {/* Title column - empty */}
              <div></div>
              {/* Project status column - empty */}
              <div></div>
              {/* Project rating column - show average */}
              <div className="flex justify-center items-center gap-2">
                <div className="text-base text-gray-400 mb-1">
                  {" "}
                  میانگین امتیاز :‌
                </div>
                <div className="font-bold">
                  {formatNumber(
                    ((stats.averageScore ?? 0) as number).toFixed?.(1) ??
                      stats.averageScore ??
                      0
                  )}
                </div>
              </div>

              {/* Details column - show total count */}
            </div>
          </div>
        </Card>
      </div>

      {/* Project Details Dialog */}
      <Dialog open={detailsDialogOpen} onOpenChange={setDetailsDialogOpen}>
        <DialogContent className="bg-[linear-gradient(to_bottom_left,#464861,50%,#111628)] max-w-4xl max-h-[80vh] overflow-y-auto">
          <DialogHeader>
            <DialogTitle className="text-white mr-4 border-b-2 border-gray-600 pb-4 font-persian text-right">
              شرح پروژه
            </DialogTitle>
          </DialogHeader>
          <div className="space-y-4 flex justify-between text-right px-6">
            {/* Project Description */}
            <div className="flex-[4] border-l-2 border-gray-600">
              <h2 className="font-bold">{selectedProjectDetails?.title}</h2>
              <p className="text-gray-300 font-persian px-2 mt-2">
                {selectedProjectDetails?.project_description || "-"}
              </p>
            </div>

            {/* Project Details */}
            <div className="flex flex-[3] gap-2 flex-col px-4">
              <div className="font-bold text-right ">جزئیات پروژه</div>

              <div className="flex items-center justify-between">
                <h4 className="font-medium text-gray-300 font-persian mb-2 flex items-center gap-1">
                  <Building2 className="h-4 text-green-500" />
                  زمان شروع:
                </h4>
                <span className="text-white font-bold font-persian">
                  {selectedProjectDetails?.start_date
                    ? moment(
                        selectedProjectDetails?.start_date,
                        "YYYY-MM-DD"
                      ).format("YYYY/MM/DD")
                    : "-"}
                </span>
              </div>

              <div className="flex items-center justify-between">
                <h4 className="font-medium text-gray-300 font-persian mb-2 flex items-center gap-1">
                  <PickaxeIcon className="h-4 text-green-500" />
                  زمان پایان:
                </h4>
                <span className="text-white font-bold font-persian">
                  {selectedProjectDetails?.done_date
                    ? moment(
                        selectedProjectDetails?.done_date,
                        "YYYY-MM-DD"
                      ).format("YYYY/MM/DD")
                    : "-"}
                </span>
              </div>

              <div className="flex items-center justify-between">
                <h4 className="font-medium text-gray-300 font-persian mb-2 flex items-center gap-1">
                  <UsersIcon className="h-4 text-green-500" />
                  هزینه برآورد شده:
                </h4>
                <span className="text-white font-bold font-persian">
                  {formatNumber(
                    Number(
                      selectedProjectDetails?.approved_budget.replaceAll(
                        ",",
                        ""
                      )
                    )
                  ) || "-"}
                </span>
              </div>
              <div className="flex items-center justify-between">
                <h4 className="font-medium text-gray-300 font-persian mb-2 flex items-center gap-1">
                  <UserIcon className="h-4 text-green-500" />
                  نفر مرتبط:
                </h4>
                <span className="text-white font-bold font-persian">
                  {selectedProjectDetails?.observer || "-"}
                </span>
              </div>
            </div>
          </div>
        </DialogContent>
      </Dialog>
    </DashboardLayout>
  );
}

export default GreenInnovationPage;