import { useState } from "react";
import { useRouter } from "next/navigation";
import {
  Table,
  TableBody,
  TableCell,
  TableHead,
  TableHeader,
  TableRow,
} from "@/components/ui/table";
import { Skeleton } from "@/components/ui/skeleton";
import { formatDistanceToNow } from "date-fns";

interface ControllerTableProps {
  data: any[];
  loading: boolean;
}

export function ControllerTable({ data, loading }: ControllerTableProps) {
  const router = useRouter();

  const handleControllerClick = (cid: string) => {
    router.push(`/controllers/${cid}`);
  };

  if (loading) {
    return <LoadingSkeleton />;
  }

  return (
    <Table>
      <TableHeader>
        <TableRow>
          <TableHead>Name</TableHead>
          <TableHead>CID</TableHead>
          <TableHead>Current Position</TableHead>
          <TableHead>Airport</TableHead>
          <TableHead>Frequency</TableHead>
          <TableHead>Rating</TableHead>
          <TableHead>Last Seen</TableHead>
          <TableHead>Session Duration</TableHead>
        </TableRow>
      </TableHeader>
      <TableBody>
        {data.map((controller) => (
          <TableRow
            key={controller.cid}
            className="cursor-pointer hover:bg-muted/50"
            onClick={() => handleControllerClick(controller.cid)}
          >
            <TableCell className="font-medium">{controller.name}</TableCell>
            <TableCell>{controller.cid}</TableCell>
            <TableCell>{controller.callsign}</TableCell>
            <TableCell>{controller.airport}</TableCell>
            <TableCell>{controller.frequency}</TableCell>
            <TableCell>{controller.rating}</TableCell>
            <TableCell>
              {formatDistanceToNow(new Date(controller.lastSeen), { addSuffix: true })}
            </TableCell>
            <TableCell>
              {formatSessionDuration(controller.logonTime, controller.lastSeen)}
            </TableCell>
          </TableRow>
        ))}
      </TableBody>
    </Table>
  );
}

function formatSessionDuration(start: string, end: string) {
  const duration = new Date(end).getTime() - new Date(start).getTime();
  const hours = Math.floor(duration / (1000 * 60 * 60));
  const minutes = Math.floor((duration % (1000 * 60 * 60)) / (1000 * 60));
  return `${hours}h ${minutes}m`;
}

function LoadingSkeleton() {
  return (
    <div className="space-y-3 p-4">
      {Array.from({ length: 5 }).map((_, i) => (
        <div key={i} className="flex gap-4">
          <Skeleton className="h-4 w-[150px]" />
          <Skeleton className="h-4 w-[100px]" />
          <Skeleton className="h-4 w-[120px]" />
          <Skeleton className="h-4 w-[80px]" />
          <Skeleton className="h-4 w-[100px]" />
          <Skeleton className="h-4 w-[80px]" />
          <Skeleton className="h-4 w-[120px]" />
          <Skeleton className="h-4 w-[100px]" />
        </div>
      ))}
    </div>
  );
}