import Link from "next/link";
import { Activity, RefreshCcw, Settings2, Wifi } from "lucide-react";
import { Button } from "@/components/ui/button";
import { Card, CardContent } from "@/components/ui/card";
import type { DashboardBalanceSummary } from "@/features/dashboard/types/dashboard.types";
import {
  formatCurrency,
  formatPercent,
  getChangeToneClass,
} from "@/features/dashboard/utils/dashboard-format";
import { cn } from "@/lib/utils";

interface StatusHeaderProps {
  summary: DashboardBalanceSummary | null;
  isKisRestConnected: boolean;
  isWebSocketReady: boolean;
  isRefreshing: boolean;
  lastUpdatedAt: string | null;
  onRefresh: () => void;
}

/**
 * @description 대시보드 상단 상태 헤더(총자산/손익/연결상태/빠른액션) 컴포넌트입니다.
 * @see features/dashboard/components/DashboardContainer.tsx 대시보드 루트에서 상태 값을 전달받아 렌더링합니다.
 */
export function StatusHeader({
  summary,
  isKisRestConnected,
  isWebSocketReady,
  isRefreshing,
  lastUpdatedAt,
  onRefresh,
}: StatusHeaderProps) {
  const toneClass = getChangeToneClass(summary?.totalProfitLoss ?? 0);
  const updatedLabel = lastUpdatedAt
    ? new Date(lastUpdatedAt).toLocaleTimeString("ko-KR", {
        hour12: false,
      })
    : "--:--:--";

  return (
    <Card className="relative overflow-hidden border-brand-200 shadow-sm dark:border-brand-800/50">
      {/* ========== BACKGROUND DECORATION ========== */}
      <div className="pointer-events-none absolute inset-x-0 top-0 h-20 bg-linear-to-r from-brand-100/70 via-brand-50/50 to-transparent dark:from-brand-900/35 dark:via-brand-900/20" />

      <CardContent className="relative grid gap-3 p-4 md:grid-cols-[1fr_1fr_1fr_auto]">
        {/* ========== TOTAL ASSET ========== */}
        <div className="rounded-xl border border-border/70 bg-background/90 px-4 py-3">
          <p className="text-xs font-medium text-muted-foreground">총 자산</p>
          <p className="mt-1 text-xl font-semibold tracking-tight">
            {summary ? `${formatCurrency(summary.totalAmount)}원` : "-"}
          </p>
          <p className="mt-1 text-xs text-muted-foreground">
            예수금 {summary ? `${formatCurrency(summary.cashBalance)}원` : "-"}
          </p>
        </div>

        {/* ========== PROFIT/LOSS ========== */}
        <div className="rounded-xl border border-border/70 bg-background/90 px-4 py-3">
          <p className="text-xs font-medium text-muted-foreground">실시간 손익</p>
          <p className={cn("mt-1 text-xl font-semibold tracking-tight", toneClass)}>
            {summary ? `${formatCurrency(summary.totalProfitLoss)}원` : "-"}
          </p>
          <p className={cn("mt-1 text-xs font-medium", toneClass)}>
            {summary ? formatPercent(summary.totalProfitRate) : "-"}
          </p>
        </div>

        {/* ========== CONNECTION STATUS ========== */}
        <div className="rounded-xl border border-border/70 bg-background/90 px-4 py-3">
          <p className="text-xs font-medium text-muted-foreground">시스템 상태</p>
          <div className="mt-2 flex flex-wrap items-center gap-2 text-xs font-medium">
            <span
              className={cn(
                "inline-flex items-center gap-1 rounded-full px-2 py-1",
                isKisRestConnected
                  ? "bg-emerald-500/10 text-emerald-600 dark:text-emerald-400"
                  : "bg-red-500/10 text-red-600 dark:text-red-400",
              )}
            >
              <Wifi className="h-3.5 w-3.5" />
              REST {isKisRestConnected ? "연결됨" : "연결 끊김"}
            </span>
            <span
              className={cn(
                "inline-flex items-center gap-1 rounded-full px-2 py-1",
                isWebSocketReady
                  ? "bg-emerald-500/10 text-emerald-600 dark:text-emerald-400"
                  : "bg-muted text-muted-foreground",
              )}
            >
              <Activity className="h-3.5 w-3.5" />
              WS {isWebSocketReady ? "준비됨" : "미연결"}
            </span>
          </div>
          <p className="mt-2 text-xs text-muted-foreground">
            마지막 갱신 {updatedLabel}
          </p>
        </div>

        {/* ========== QUICK ACTIONS ========== */}
        <div className="flex items-end gap-2 md:flex-col md:items-stretch md:justify-between">
          <Button
            type="button"
            variant="outline"
            onClick={onRefresh}
            disabled={isRefreshing}
            className="w-full border-brand-200 text-brand-700 hover:bg-brand-50 dark:border-brand-700 dark:text-brand-300 dark:hover:bg-brand-900/30"
          >
            <RefreshCcw
              className={cn("h-4 w-4", isRefreshing ? "animate-spin" : "")}
            />
            새로고침
          </Button>
          <Button
            asChild
            className="w-full bg-brand-600 text-white hover:bg-brand-700"
          >
            <Link href="/settings">
              <Settings2 className="h-4 w-4" />
              자동매매 설정
            </Link>
          </Button>
        </div>
      </CardContent>
    </Card>
  );
}