import { Bot, ExternalLink, AlertTriangle } from "lucide-react"
import { useAgentStatus } from "@/lib/queries"
import { resolveExternalUrl } from "@/lib/utils"

export function TerminalView() {
  const { data: agent } = useAgentStatus(5_000)
  const url = agent?.hermes_ui_url ? resolveExternalUrl(agent.hermes_ui_url) : undefined
  const ok = agent?.hermes_ui_reachable

  return (
    <div className="flex h-full flex-col gap-4">
      <div className="flex flex-wrap items-end justify-between gap-3">
        <div>
          <h1 className="bg-gradient-to-r from-foreground via-foreground to-primary bg-clip-text font-space text-2xl font-bold tracking-tight text-transparent">
            Hermes GUI
          </h1>
          <p className="flex items-center gap-2 text-sm text-muted-foreground">
            Die eingebaute Hermes-Weboberfläche — Threads, sichtbare Tool-Calls &amp; Chat, direkt im Cockpit statt im Terminal.
          </p>
        </div>
        <div className="flex items-center gap-3">
          <span className="flex items-center gap-1.5 text-[11px] font-medium text-muted-foreground">
            <span className={`h-2 w-2 rounded-full ${ok ? "bg-emerald-500 animate-pulse" : "bg-amber-500"}`} />
            {ok ? "online" : "offline"}
          </span>
          {url && (
            <a href={url} target="_blank" rel="noopener"
              className="flex h-8 items-center gap-1.5 rounded-lg border border-border/60 bg-background/20 px-3 text-xs font-semibold text-muted-foreground transition-all hover:border-primary/50 hover:text-foreground">
              <ExternalLink className="h-3.5 w-3.5" /> In neuem Tab
            </a>
          )}
        </div>
      </div>

      {url ? (
        <div className="relative min-h-[68vh] flex-1 overflow-hidden rounded-2xl border border-border/60 bg-black/50 shadow-lg shadow-black/25">
          {ok === false && (
            <div className="absolute inset-0 z-10 flex flex-col items-center justify-center gap-3 bg-black/70 text-center">
              <AlertTriangle className="h-8 w-8 text-amber-400" />
              <div className="text-sm font-semibold text-amber-300">Hermes-GUI nicht erreichbar</div>
              <p className="max-w-sm text-[11px] leading-normal text-muted-foreground">
                Der <code className="font-mono text-primary">hermes-builtin-ui</code>-Dienst (<code className="font-mono">hermes serve</code>) läuft nicht.
                Auf der Box: <code className="font-mono">systemctl --user restart hermes-builtin-ui</code>.
              </p>
            </div>
          )}
          <iframe src={url} title="Hermes GUI" className="h-full w-full border-0" style={{ minHeight: "68vh" }} />
        </div>
      ) : (
        <div className="flex min-h-[68vh] flex-1 items-center justify-center rounded-2xl border border-border/60 bg-background/20 text-xs text-muted-foreground">
          <Bot className="mr-2 h-4 w-4" /> Lade Hermes-GUI…
        </div>
      )}
    </div>
  )
}