"use client"

import type { ReactNode } from "react"
import Link from "next/link"
import { Badge } from "@/components/reui/badge"
import { IconTile } from "@/components/reui/icon-tile"
import { StatusBadge } from "@/components/status-badge"
import { Flag } from "@/components/flag"
import type { InternetPathViewModel } from "@/lib/dashboard-internet-path"
import type { ServerStatus } from "@/lib/data"
import { cn } from "@/lib/utils"
import { ArrowRightIcon, HomeIcon, RadioIcon, ServerIcon, GlobeIcon } from "lucide-react"

function pathStateToServerStatus(state: InternetPathViewModel["pathState"]): ServerStatus {
  if (state === "healthy") return "online"
  if (state === "failover" || state === "degraded") return "degraded"
  return "offline"
}

function HopChip({
  label,
  name,
  country,
  icon,
  iconClassName,
}: {
  label: string
  name: string
  country?: string
  icon: ReactNode
  iconClassName?: string
}) {
  return (
    <div className="flex min-w-0 items-center gap-2 rounded-md border border-border/60 px-2 py-1.5">
      <IconTile variant="elevated" size="sm" className={cn("shrink-0", iconClassName)} aria-hidden="true">
        {icon}
      </IconTile>
      <div className="min-w-0">
        <p className="text-muted-foreground text-[10px] font-medium uppercase tracking-wide">{label}</p>
        <p className="flex items-center gap-1 truncate text-sm font-medium">
          {country ? <Flag code={country} className="shrink-0" /> : null}
          <span className="truncate">{name}</span>
        </p>
      </div>
    </div>
  )
}

/**
 * Compact live path strip (Frame-friendly). Canvas lives separately.
 * Preview: https://reui.io/preview/base/stats-12
 * Docs: https://reui.io/docs/components/base/icon-tile
 */
export function InternetPathSummary({ model }: { model: InternetPathViewModel | null }) {
  if (!model) {
    return (
      <p className="text-muted-foreground text-sm">
        Недостаточно данных для пути. Добавьте home-router и проверьте{" "}
        <Link href="/network-map" className="underline underline-offset-2">
          карту сети
        </Link>
        .
      </p>
    )
  }

  const hop = model.currentHop ?? model.primaryHop
  const wanName = hop?.wan.name ?? model.activeWanUplink?.name ?? "WAN"
  const wanIsp = hop?.wan.isp ?? model.activeWanUplink?.isp ?? "—"
  const ping = hop?.wanJhMetrics.pingMs
  const dl = hop?.wanJhMetrics.dlMbps

  return (
    <div className="flex flex-col gap-3">
      <div className="flex flex-wrap items-center gap-2">
        <StatusBadge status={pathStateToServerStatus(model.pathState)} />
        {model.pathState === "failover" ? (
          <Badge variant="warning-light" size="sm">failover</Badge>
        ) : null}
        {ping != null ? (
          <Badge variant="outline" size="sm" className="tabular-nums">
            {ping} мс
          </Badge>
        ) : null}
        {dl != null ? (
          <Badge variant="outline" size="sm" className="tabular-nums">
            {Math.round(dl)} ↓ Мбит/с
          </Badge>
        ) : null}
      </div>

      <div className="flex flex-col gap-2 @3xl:flex-row @3xl:items-center">
        <HopChip
          label="Home"
          name={model.homeRouter.name}
          country={model.homeRouter.country}
          icon={<HomeIcon />}
          iconClassName="text-success"
        />
        <ArrowRightIcon className="text-muted-foreground hidden size-4 shrink-0 @3xl:block" aria-hidden="true" />
        <HopChip
          label="WAN"
          name={`${wanName} · ${wanIsp}`}
          icon={<RadioIcon />}
          iconClassName="text-info"
        />
        <ArrowRightIcon className="text-muted-foreground hidden size-4 shrink-0 @3xl:block" aria-hidden="true" />
        <HopChip
          label="JH"
          name={hop?.jumpHost.name ?? model.fallbackJumpHost?.name ?? "—"}
          country={hop?.jumpHost.country ?? model.fallbackJumpHost?.country}
          icon={<ServerIcon />}
          iconClassName="text-primary"
        />
        <ArrowRightIcon className="text-muted-foreground hidden size-4 shrink-0 @3xl:block" aria-hidden="true" />
        <HopChip
          label="Exit"
          name={hop?.exitNode.name ?? model.fallbackExitNode?.name ?? "—"}
          country={hop?.exitNode.country ?? model.fallbackExitNode?.country}
          icon={<GlobeIcon />}
          iconClassName="text-muted-foreground"
        />
      </div>

      <p className="text-muted-foreground text-xs leading-relaxed">
        {model.currentPath?.reason ?? model.primaryPath?.reason ?? "Текущий путь не определён"}
      </p>
    </div>
  )
}