import { content, type Location } from "@deadhead/content";
import { Link } from "react-router";
import { useClock } from "../clock/clock";
import { cargoName, formatCredits, formatMillionKm } from "../format";
import { distanceAt } from "../game";
import { errorMessage, useGameAction, useLoadedPlayer } from "../state/actions";
import { Art, Button, buttonClass, Icon, Panel, Pill, Screen, ScreenHeader } from "../ui";

const TYPE_LABELS: Record<Location["type"], string> = {
  "atmospheric-world": "Atmospheric world",
  "airless-body": "Airless body",
  "cloud-platform": "Cloud platform",
  "belt-station": "Belt station",
};
/** What a bay is for (CR-002: bays are HQs, not access to contracts). */
export const HQ_EXPLANATION =
  "Open an HQ here: hire pilots and take delivery of new ships at this location.";

const LANDING_LABELS = { vacuum: "Any ship", atmospheric: "Atmospheric", hardened: "Hardened" };

/** Every location; details, contracts and HQ leasing once discovered (Steps 9.9, 10B.9). */
export function Locations() {
  const state = useLoadedPlayer();
  const now = useClock((s) => s.now);
  const lease = useGameAction("leaseBay");

  return (
    <Screen className="max-w-4xl">
      <ScreenHeader title="Locations" eyebrow="Known space" icon="places" />
      {lease.isError && (
        <p role="alert" className="text-sm text-rose-300">
          {errorMessage(lease.error)}
        </p>
      )}
      <ul className="grid gap-3 md:grid-cols-2">
        {content.locations.map((location) => {
          const discovered = state.locations.find((l) => l.id === location.id)?.discovered;
          if (!discovered) {
            return (
              <Panel
                as="li"
                key={location.id}
                tone="muted"
                className="flex items-center gap-4 text-sm"
              >
                <div className="relative shrink-0">
                  <Art sprite={location.sprite} className="size-16 opacity-40 grayscale" />
                  <Icon
                    name="lock"
                    className="absolute top-1/2 left-1/2 size-6 -translate-1/2 text-ink-200"
                  />
                </div>
                <div>
                  <div className="font-display text-lg font-bold tracking-wide text-ink-300">
                    {location.name}
                  </div>
                  <div className="text-ink-400">Undiscovered — deliver here to unlock.</div>
                </div>
              </Panel>
            );
          }
          const hasBay = state.bays.some((b) => b.locationId === location.id);
          const affordable = state.company.credits >= location.bayLeasePrice;
          return (
            <Panel
              as="li"
              key={location.id}
              tone={hasBay ? "emerald" : "default"}
              className="flex flex-col text-sm"
            >
              <div className="flex items-center gap-4">
                <Art
                  sprite={location.sprite}
                  className="size-20 shrink-0 drop-shadow-[0_0_14px_rgb(125_211_252/0.35)]"
                />
                <div className="min-w-0 flex-1">
                  <div className="flex items-start justify-between gap-2">
                    <span className="font-display text-xl font-bold tracking-wide">
                      {location.name}
                    </span>
                    {hasBay && (
                      <Pill tone="emerald" icon="hq">
                        HQ
                      </Pill>
                    )}
                  </div>
                  <span className="font-display text-xs tracking-wider text-cyan-300/80">
                    {location.id === "earth"
                      ? "Home"
                      : `${formatMillionKm(distanceAt("earth", location.id, now))} from Earth`}
                  </span>
                </div>
              </div>
              <dl className="mt-3 grid grid-cols-[auto_1fr] gap-x-4 gap-y-1 rounded-lg bg-space-950/50 p-2.5 text-ink-200 ring-1 ring-space-700">
                <dt className="font-display text-[11px] tracking-[0.14em] text-ink-400 uppercase">
                  Type
                </dt>
                <dd>{TYPE_LABELS[location.type]}</dd>
                <dt className="font-display text-[11px] tracking-[0.14em] text-ink-400 uppercase">
                  Landing
                </dt>
                <dd>{LANDING_LABELS[location.landingRequirement]}</dd>
                <dt className="font-display text-[11px] tracking-[0.14em] text-ink-400 uppercase">
                  Produces
                </dt>
                <dd>{location.cargoClassMix.produces.map(cargoName).join(", ") || "—"}</dd>
                <dt className="font-display text-[11px] tracking-[0.14em] text-ink-400 uppercase">
                  Demands
                </dt>
                <dd>{location.cargoClassMix.demands.map(cargoName).join(", ") || "—"}</dd>
              </dl>
              <Link
                to={`/contracts?location=${location.id}`}
                className={`mt-3 ${buttonClass("secondary", "sm")}`}
              >
                <Icon name="jobs" className="size-4" />
                View contracts
              </Link>
              {hasBay ? (
                <p className="mt-3 flex items-center gap-1.5 font-display font-semibold text-emerald-300">
                  <Icon name="check" className="size-4" />
                  Your HQ is here
                </p>
              ) : (
                <>
                  <p className="mt-3 text-ink-400">{HQ_EXPLANATION}</p>
                  <Button
                    aria-label={`Lease bay at ${location.name}`}
                    block
                    disabled={!affordable || lease.isPending}
                    onClick={() => lease.mutate({ locationId: location.id })}
                    className="mt-2"
                  >
                    Lease bay ({formatCredits(location.bayLeasePrice)})
                  </Button>
                </>
              )}
            </Panel>
          );
        })}
      </ul>
    </Screen>
  );
}