"use client";

import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
import { Avatar, AvatarFallback } from "@/components/ui/avatar";
import { Badge } from "@/components/ui/badge";
import { formatDistanceToNow } from "date-fns";
import { ActivityLog } from "@/types/dashboard";
import Link from "next/link";

interface RecentActivityProps {
  activities: ActivityLog[] | undefined;
  isLoading: boolean;
}

export function RecentActivity({ activities, isLoading }: RecentActivityProps) {
  if (isLoading) {
     return (
        <Card className="h-full">
            <CardHeader><CardTitle className="text-lg">Recent Activity</CardTitle></CardHeader>
            <CardContent>
                <div className="space-y-6">
                    {[...Array(3)].map((_, i) => (
                         <div key={i} className="h-16 bg-muted animate-pulse rounded-md" />
                    ))}
                </div>
            </CardContent>
        </Card>
     )
  }

  if (!activities || activities.length === 0) {
      return (
        <Card className="h-full">
          <CardHeader><CardTitle className="text-lg">Recent Activity</CardTitle></CardHeader>
           <CardContent className="text-muted-foreground text-sm text-center py-8">
               No recent activity.
           </CardContent>
        </Card>
      );
  }
  return (
    <Card className="h-full">
      <CardHeader>
        <CardTitle className="text-lg">Recent Activity</CardTitle>
      </CardHeader>
      <CardContent>
        <div className="space-y-6">
          {activities.map((activity) => (
            <div
              key={activity.id}
              className="flex gap-4 pb-4 border-b last:border-0 last:pb-0"
            >
              <Avatar className="h-10 w-10 border">
                <AvatarFallback className="bg-primary/10 text-primary font-medium">
                  {activity.user.initials}
                </AvatarFallback>
              </Avatar>

              <div className="flex-1 space-y-1">
                <div className="flex items-center justify-between">
                  <div className="flex items-center gap-2">
                    <span className="font-semibold text-sm">{activity.user.name}</span>
                    <Badge variant="secondary" className="text-[10px] h-5 px-1.5 font-normal">
                      {activity.action}
                    </Badge>
                  </div>
                  <span className="text-xs text-muted-foreground">
                    {formatDistanceToNow(new Date(activity.createdAt), {
                      addSuffix: true,
                    })}
                  </span>
                </div>

                <Link href={activity.targetUrl} className="block group">
                  <p className="text-sm text-foreground group-hover:text-primary transition-colors">
                    {activity.description}
                  </p>
                </Link>
              </div>
            </div>
          ))}
        </div>
      </CardContent>
    </Card>
  );
}
