EpicNext-Cms/src/components/admin/dashboard.tsx

"use client";

import Image from "next/image";
import type { ReactNode } from "react";

export interface OnlineUser {
  id: number;
  username: string;
  look: string;
  roomId: number | null;
  roomName: string | null;
  lastActivity: Date;
}

type State = "ok" | "warn" | "danger" | "neutral";

/** A single live-status tile (online users, emulator, DB, …). */
export function StatusCard({
  label,
  value,
  hint,
  state: _state = "neutral",
  icon,
}: {
  label: string;
  value: ReactNode;
  hint?: string;
  state?: State;
  icon?: ReactNode;
}) {
  return (
    <div className="bg-[var(--color-surface)] border border-[var(--border-subtle)] rounded-2xl p-5 shadow-card hover:shadow-card-hover transition-shadow duration-200">
      <div className="flex items-center justify-between gap-3 mb-3">
        <span className="text-[0.65rem] font-bold uppercase tracking-widest text-[var(--color-text-muted)]">{label}</span>
        {icon ? (
          <span className="w-8 h-8 rounded-xl bg-gradient-to-br from-[var(--color-primary)]/15 to-[var(--color-primary)]/5 grid place-items-center text-[var(--color-primary)] flex-none">
            {icon}
          </span>
        ) : null}
      </div>
      <div className="text-2xl font-extrabold text-[var(--color-text)] leading-tight">{value}</div>
      {hint ? <div className="text-[0.7rem] text-[var(--color-text-muted)] mt-1.5 font-medium">{hint}</div> : null}
    </div>
  );
}

/** A row in the system-diagnostics list with an ok/warn/error pill. */
export function DiagnosticRow({
  label,
  detail,
  state,
}: {
  label: string;
  detail: string;
  state: Exclude<State, "neutral">;
}) {
  const text = state === "ok" ? "OK" : state === "warn" ? "WARN" : "ERROR";
  const dotColor = state === "ok" ? "bg-green-600 shadow-[0_0_0_3px_rgba(22,163,74,0.22)]" :
    state === "warn" ? "bg-[var(--color-primary)] shadow-[0_0_0_3px_rgba(238,180,37,0.22)]" :
    "bg-red-500 shadow-[0_0_0_3px_rgba(239,68,68,0.22)]";
  const badgeColor = state === "ok" ? "bg-green-600/20" :
    state === "danger" ? "bg-red-500/22" :
    "bg-[var(--color-primary)]/18";

  return (
    <div className="flex items-center gap-2.5 py-2 px-0.5 border-t border-[var(--border-subtle)] first:border-t-0">
      <span className={`flex-none w-[9px] h-[9px] rounded-full ${dotColor}`} aria-hidden />
      <span className="font-bold text-sm">{label}</span>
      <span className="flex-1 text-[0.82rem] text-[var(--color-text-muted)]">{detail}</span>
      <span className={`inline-block text-[0.72rem] font-bold px-2 py-0.5 rounded-full ${badgeColor} text-[var(--color-text)]`}>
        {text}
      </span>
    </div>
  );
}

/** Small labelled key/value used in the server-info card. */
export function InfoItem({ label, value }: { label: string; value: ReactNode }) {
  return (
    <div className="flex flex-col gap-0.5 text-sm">
      <span className="text-[var(--color-text-muted)]">{label}</span>
      <strong>{value}</strong>
    </div>
  );
}

/** Live list of online users with room and activity tracking */
export function OnlineUsersWidget({
  users,
  isLoading = false,
}: {
  users: OnlineUser[];
  isLoading?: boolean;
}) {
  const formatLastSeen = (date: Date) => {
    const now = new Date();
    const diff = Math.floor((now.getTime() - date.getTime()) / 1000);
    
    if (diff < 60) return "Just now";
    if (diff < 3600) return `${Math.floor(diff / 60)}m ago`;
    if (diff < 86400) return `${Math.floor(diff / 3600)}h ago`;
    return `${Math.floor(diff / 86400)}d ago`;
  };

  return (
    <div className="bg-[var(--color-surface)] rounded-xl border border-[var(--border-subtle)] p-6">
      <div className="flex justify-between items-center mb-4">
        <h3 className="m-0 text-lg font-semibold text-[var(--color-text)]">Online Now</h3>
        <span className="text-sm text-[var(--color-text-muted)] bg-[var(--color-primary)]/10 px-3 py-1 rounded-full">
          {isLoading ? "..." : users.length} users
        </span>
      </div>
      
      <div className="max-h-80 overflow-y-auto flex flex-col gap-3">
        {users.length === 0 ? (
          <div className="py-8 text-center bg-[var(--color-text-muted)]/5 rounded-lg">
            <span className="text-[var(--color-text-muted)] text-sm">No users online</span>
          </div>
        ) : (
          users.map((user) => (
            <div
              key={user.id}
              className="flex items-center gap-3 p-3 bg-[var(--color-text-muted)]/5 rounded-lg transition-all duration-150 hover:bg-[var(--color-text-muted)]/10 hover:translate-x-0.5"
            >
              <div className="relative flex-none w-[50px] h-[62px]">
                <Image
                  src={`https://www.habbo.com/habbo-imaging/avatarimage?width=50&height=62&direction=2&headonly=1&crop=face&action=wav&gender=m&look=${encodeURIComponent(user.look)}`}
                  alt={user.username}
                  fill
                  className="rounded object-cover border border-[var(--border-subtle)]"
                  unoptimized
                />
                {user.roomId && user.roomName && (
                  <div className="absolute -bottom-0.5 -right-0.5">
                    <span className="block w-[10px] h-[10px] bg-green-500 rounded-full border-2 border-[var(--color-surface)]" />
                  </div>
                )}
              </div>
              
              <div className="flex-1 min-w-0">
                <div className="font-medium text-[var(--color-text)] mb-1 truncate">
                  <a href={`/u/${user.username}`} className="text-inherit no-underline hover:text-[var(--color-primary)] hover:underline">
                    {user.username}
                  </a>
                </div>
                <div className="text-[0.75rem] text-[var(--color-text-muted)]">
                  {user.roomId && user.roomName ? (
                    <span className="text-green-500 font-medium">🏠 {user.roomName}</span>
                  ) : (
                    <span className="text-red-500">⏱️ {formatLastSeen(user.lastActivity)}</span>
                  )}
                </div>
              </div>
            </div>
          ))
        )}
      </div>
    </div>
  );
}