import { ActivityChart } from "@/components/ActivityChart";
import {
    Card,
    CardContent,
    CardDescription,
    CardHeader,
    CardTitle,
} from "@/components/ui/card";
import { Button } from "@/components/ui/button";
import { useActivityStats } from "@/hooks/use-activity-stats";
import { useDashboardStats } from "@/hooks/use-dashboard-stats";
import { Activity as ActivityIcon, RefreshCw, Terminal } from "lucide-react";

export function Activity() {
    const { data: activityData, loading: activityLoading, refresh: refreshActivity } = useActivityStats();
    const { stats, loading: statsLoading } = useDashboardStats();

    return (
        <div className="space-y-8 animate-in fade-in duration-700">
            <div className="flex flex-col gap-2">
                <h2 className="text-4xl font-extrabold tracking-tight bg-clip-text text-transparent bg-gradient-to-r from-white via-white to-white/40">
                    Activity Monitoring
                </h2>
                <p className="text-white/40 font-medium">Real-time system logs and performance metrics.</p>
            </div>

            {/* Activity Chart Section */}
            <Card className="glass border-white/5 overflow-hidden">
                <CardHeader className="flex flex-row items-center justify-between pb-2">
                    <div>
                        <CardTitle className="text-xl font-bold flex items-center gap-2">
                            <div className="h-5 w-1 bg-emerald-500 rounded-full" />
                            Command & Transaction Volume
                        </CardTitle>
                        <CardDescription className="text-white/40 font-medium tracking-tight">Hourly traffic analysis (Last 24 Hours)</CardDescription>
                    </div>
                    <Button
                        variant="ghost"
                        size="icon"
                        onClick={() => refreshActivity()}
                        className="text-white/40 hover:text-white hover:bg-white/5"
                        disabled={activityLoading}
                    >
                        <RefreshCw className={`w-4 h-4 ${activityLoading ? 'animate-spin' : ''}`} />
                    </Button>
                </CardHeader>
                <CardContent>
                    <ActivityChart data={activityData} loading={activityLoading} />
                </CardContent>
            </Card>

            {/* Detailed Activity Logs */}
            <Card className="glass border-white/5 overflow-hidden">
                <CardHeader className="border-b border-white/5 bg-white/[0.02]">
                    <div className="flex items-center gap-3">
                        <div className="p-2 bg-primary/10 rounded-lg">
                            <Terminal className="w-5 h-5 text-primary" />
                        </div>
                        <div>
                            <CardTitle className="text-xl font-bold">System Logs</CardTitle>
                            <CardDescription className="text-white/40">Recent operational events and alerts</CardDescription>
                        </div>
                    </div>
                </CardHeader>
                <CardContent className="p-0">
                    {statsLoading && !stats ? (
                        <div className="p-12 text-center">
                            <RefreshCw className="w-8 h-8 text-white/20 animate-spin mx-auto mb-4" />
                            <p className="text-white/40 font-medium">Connecting to event stream...</p>
                        </div>
                    ) : (
                        <div className="divide-y divide-white/5">
                            {!stats?.recentEvents || stats.recentEvents.length === 0 ? (
                                <div className="p-12 text-center">
                                    <ActivityIcon className="w-12 h-12 text-white/10 mx-auto mb-4" />
                                    <p className="text-white/30 font-medium">No recent activity recorded</p>
                                </div>
                            ) : (
                                stats.recentEvents.map((event, i) => (
                                    <div key={i} className="flex gap-4 p-6 hover:bg-white/[0.02] transition-colors group">
                                        <div className="flex flex-col items-center gap-2">
                                            <div className={`p-2 rounded-lg ring-1 ring-inset ${event.type === 'success' ? 'bg-emerald-500/10 ring-emerald-500/20 text-emerald-500' :
                                                    event.type === 'error' ? 'bg-red-500/10 ring-red-500/20 text-red-500' :
                                                        event.type === 'warn' ? 'bg-yellow-500/10 ring-yellow-500/20 text-yellow-500' :
                                                            'bg-blue-500/10 ring-blue-500/20 text-blue-500'
                                                } group-hover:scale-110 transition-transform duration-300`}>
                                                <div className="text-lg leading-none">{event.icon}</div>
                                            </div>
                                            <div className="h-full w-px bg-white/5 group-last:hidden" />
                                        </div>
                                        <div className="flex-1 space-y-1 pt-1">
                                            <div className="flex items-center justify-between">
                                                <p className="font-semibold text-white/90">{event.message}</p>
                                                <span className="text-xs font-mono font-medium text-white/30 bg-white/5 px-2 py-1 rounded">
                                                    {new Date(event.timestamp).toLocaleString()}
                                                </span>
                                            </div>
                                            {event.type === 'error' && (
                                                <p className="text-sm text-red-400/60 font-mono mt-2 pl-3 border-l-2 border-red-500/20">
                                                    Error: Check system console for stack trace
                                                </p>
                                            )}
                                        </div>
                                    </div>
                                ))
                            )}
                        </div>
                    )}
                </CardContent>
            </Card>
        </div>
    );
}