import { BookOpenText, Languages, Settings } from "lucide-react";
import Link from "next/link";
import { useRouter } from "next/navigation";
import { ChangeEvent, useState } from "react";

import {
  Dialog,
  DialogContent,
  DialogDescription,
  DialogHeader,
  DialogTitle,
} from "@/components/ui/dialog";
import { BoardingMissionForm, startVoyage } from "@/features/boarding";
import { useI18n } from "@/features/i18n/model/useI18n";
import { useLobbyRedirect } from "@/features/lobby-session/model/useLobbyRedirect";
import { LOCALE_LABELS, Locale, SUPPORTED_LOCALES } from "@/shared/config/i18n";
import { ROUTES } from "@/shared/config/routes";

function RouteCard({
  route,
  isCTA = false,
  onLaunch,
}: {
  route: (typeof ROUTES)[number];
  isCTA?: boolean;
  onLaunch: (route: (typeof ROUTES)[number]) => void;
}) {
  const { t } = useI18n();

  return (
    <div
      className={`group relative flex h-full flex-col rounded-2xl border border-slate-800 bg-slate-900/60 p-6 shadow-lg backdrop-blur-md transition-all duration-300 hover:border-indigo-500/50 hover:bg-slate-800/80 hover:shadow-indigo-900/20 ${isCTA ? "min-h-[200px] items-center justify-center text-center" : ""}`}
    >
      <div
        className={`relative z-10 flex w-full ${isCTA ? "flex-col items-center gap-4" : "mb-4 items-start justify-between"}`}
      >
        <div className={isCTA ? "flex flex-col items-center" : ""}>
          <h3
            className={`font-bold text-indigo-100 transition-colors group-hover:text-white ${isCTA ? "text-3xl" : "text-xl"}`}
          >
            {t(route.nameKey, undefined, route.id)}
          </h3>
          <span className="mt-2 inline-block rounded-full border border-slate-800 bg-slate-950/50 px-2 py-0.5 text-xs font-medium text-slate-400">
            {t(route.tagKey)}
          </span>
        </div>
        {route.durationMinutes !== 0 && (
          <span
            className={`font-light text-slate-300 transition-colors group-hover:text-white ${isCTA ? "mt-2 text-4xl" : "text-3xl"}`}
          >
            {route.durationMinutes !== 0 && route.durationMinutes}
            <span className="ml-1 text-sm text-slate-500">
              {route.durationMinutes !== 0 && t("common.minuteShort")}
            </span>
          </span>
        )}
      </div>

      {!isCTA && (
        <p className="relative z-10 mb-8 w-full flex-1 text-left text-sm leading-relaxed text-slate-400">
          {t(route.descriptionKey)}
        </p>
      )}

      {isCTA && (
        <p className="relative z-10 mt-2 mb-6 max-w-lg text-left text-base text-slate-400">
          {t(route.descriptionKey)}
        </p>
      )}

      <button
        type="button"
        onClick={() => onLaunch(route)}
        className={`relative z-10 flex items-center justify-center rounded-xl bg-indigo-600 font-bold text-white shadow-lg shadow-indigo-900/30 transition-all hover:bg-indigo-500 active:scale-[0.98] ${isCTA ? "w-full max-w-md py-4 text-lg" : "w-full py-4"}`}
      >
        {isCTA ? t("lobby.cta.station") : t("lobby.cta.launch")}
      </button>
    </div>
  );
}

export function LobbyRoutesPanel() {
  const { locale, setLocale, t } = useI18n();
  useLobbyRedirect();
  const router = useRouter();
  const [selectedRouteId, setSelectedRouteId] = useState<string | null>(null);
  const [isBoardingOpen, setIsBoardingOpen] = useState(false);

  const stationRoute = ROUTES[0];
  const normalRoutes = ROUTES.slice(1);
  const selectedRoute =
    ROUTES.find((route) => route.id === selectedRouteId) ?? stationRoute;

  const handleOpenBoarding = (route: (typeof ROUTES)[number]) => {
    setSelectedRouteId(route.id);
    setIsBoardingOpen(true);
  };

  const handleDocking = (mission: string) => {
    const started = startVoyage({
      route: selectedRoute,
      mission,
      routeName: t(selectedRoute.nameKey, undefined, selectedRoute.id),
    });

    if (!started) return;

    setIsBoardingOpen(false);
    router.push("/flight");
  };

  const handleLocaleChange = (event: ChangeEvent<HTMLSelectElement>) => {
    setLocale(event.target.value as Locale);
  };

  return (
    <div className="relative z-10 flex min-h-[calc(100vh-80px)] w-full flex-col p-6 md:p-12 lg:min-h-screen lg:flex-row lg:items-stretch lg:gap-0 lg:p-0">
      <aside className="hidden w-72 shrink-0 border-r border-slate-700/80 bg-slate-800/65 px-7 py-8 shadow-[2px_0_24px_rgba(2,6,23,0.45)] backdrop-blur lg:flex lg:min-h-screen lg:flex-col lg:justify-between">
        <div className="flex flex-col gap-10">
          <h1 className="text-lg font-bold tracking-[0.14em] text-indigo-300">
            FOCUSTELLA
          </h1>
          <nav className="flex flex-col gap-2">
            <Link
              href="/log"
              className="flex items-center gap-3 rounded-lg border border-transparent px-3 py-2.5 text-sm font-semibold text-slate-300 transition-colors hover:border-slate-700 hover:bg-slate-900/70 hover:text-slate-100"
            >
              <BookOpenText className="h-4 w-4 text-indigo-300" aria-hidden />
              <span>{t("layout.nav.log")}</span>
            </Link>
            <Link
              href="/settings"
              className="flex items-center gap-3 rounded-lg border border-transparent px-3 py-2.5 text-sm font-semibold text-slate-300 transition-colors hover:border-slate-700 hover:bg-slate-900/70 hover:text-slate-100"
            >
              <Settings className="h-4 w-4 text-indigo-300" aria-hidden />
              <span>{t("layout.nav.settings")}</span>
            </Link>
          </nav>
        </div>
        <label className="flex items-center justify-between gap-3 rounded-lg border border-slate-800 bg-slate-900/60 px-3 py-2 text-xs text-slate-300">
          <span className="inline-flex items-center gap-2">
            <Languages className="h-4 w-4 text-indigo-300" aria-hidden />
            {t("layout.nav.language")}
          </span>
          <select
            value={locale}
            onChange={handleLocaleChange}
            className="rounded border border-slate-700 bg-slate-900/80 px-2 py-1 text-xs text-slate-200 outline-none transition-colors focus:border-indigo-400"
          >
            {SUPPORTED_LOCALES.map((item) => (
              <option key={item} value={item}>
                {LOCALE_LABELS[item]}
              </option>
            ))}
          </select>
        </label>
      </aside>

      <div className="w-full flex-1 lg:min-h-screen lg:bg-slate-950/68 lg:px-10 lg:pt-10 lg:shadow-[inset_0_1px_0_rgba(148,163,184,0.06)]">
        <div className="mx-auto mb-12 max-w-2xl space-y-4 rounded-3xl border border-slate-800/40 bg-slate-950/35 p-6 text-center backdrop-blur-sm">
          <h1 className="text-3xl font-bold tracking-tight text-slate-100 md:text-5xl">
            {t("lobby.title")}
          </h1>
          <p className="text-lg text-slate-300">{t("lobby.subtitle")}</p>
        </div>

        <div className="mx-auto flex w-full max-w-5xl flex-col gap-6 pb-8">
          <div className="w-full">
            <RouteCard
              route={stationRoute}
              isCTA={true}
              onLaunch={handleOpenBoarding}
            />
          </div>

          <div className="grid w-full grid-cols-1 gap-6 md:grid-cols-2">
            {normalRoutes.map((route) => (
              <RouteCard
                key={route.id}
                route={route}
                onLaunch={handleOpenBoarding}
              />
            ))}
          </div>
        </div>
      </div>

      <Dialog open={isBoardingOpen} onOpenChange={setIsBoardingOpen}>
        <DialogContent
          className="max-w-xl border-slate-800 bg-slate-950 text-slate-100"
          showCloseButton={true}
        >
          <DialogHeader className="mb-2">
            <h2 className="mb-1 text-sm font-semibold uppercase tracking-widest text-indigo-400">
              {t("lobby.modal.boardingCheck")}
            </h2>
            <DialogTitle className="text-2xl font-bold text-white">
              {t("lobby.modal.routeBoarding", {
                routeName: t(selectedRoute.nameKey, undefined, selectedRoute.id),
              })}
            </DialogTitle>
            <DialogDescription className="text-slate-400">
              {t("lobby.modal.description")}
            </DialogDescription>
          </DialogHeader>

          <BoardingMissionForm
            onDock={handleDocking}
            onCancel={() => setIsBoardingOpen(false)}
            autoFocus={true}
            compact={true}
          />
        </DialogContent>
      </Dialog>
    </div>
  );
}