import { content } from "@deadhead/content";
import { useState } from "react";
import { useNavigate } from "react-router";
import { useClock } from "../clock/clock";
import { formatCredits, locationName, toLocation } from "../format";
import { formatLocalTime } from "../screens/DispatchSheet";
import { useGameAction, useLoadedPlayer } from "../state/actions";
import { Button, Icon, Sheet } from "../ui";

/** "While you were away": deliveries resolved since the player last looked (Step 9.2). */
export function AwaySummary() {
  const state = useLoadedPlayer();
  const acknowledge = useGameAction("acknowledgeSummaries");
  // Hide as soon as the player dismisses; the refetch clears the list for real.
  const [dismissed, setDismissed] = useState<ReadonlySet<string>>(new Set());

  const navigate = useNavigate();
  const now = useClock((s) => s.now);
  const summaries = state.summaries.filter((s) => !dismissed.has(s.dispatchId));
  // Upgrades finished and not yet seen: "out of the shop" (CR-009).
  const outOfShop = state.ships.filter(
    (s) => s.shop !== null && s.shop.until <= now && !dismissed.has(`ship:${s.id}`),
  );
  // Goals waiting to be claimed (Step 10A.17).
  const readyGoals = state.goals
    .filter((g) => g.status === "ready")
    .map((g) => content.onboardingGoal(g.id))
    .filter((g) => g !== undefined);
  if (summaries.length === 0 && outOfShop.length === 0) return null;

  const shipName = (shipId: string, tutorial: boolean) =>
    tutorial ? "Company loaner" : (state.ships.find((s) => s.id === shipId)?.name ?? "A ship");

  const dismiss = () => {
    const ids = summaries.map((s) => s.dispatchId);
    const shipIds = outOfShop.map((s) => s.id);
    setDismissed(new Set([...dismissed, ...ids, ...shipIds.map((id) => `ship:${id}`)]));
    acknowledge.mutate({ dispatchIds: ids, ...(shipIds.length > 0 ? { shipIds } : {}) });
  };

  return (
    <Sheet titleId="away-title" eyebrow="Logbook" title="While you were away">
      <ul className="mt-4 space-y-3">
        {summaries.map((s) => (
          <li
            key={s.dispatchId}
            className="rounded-xl border border-space-600 bg-space-950/50 p-3 text-sm"
          >
            <div className="flex items-baseline justify-between gap-2">
              <span className="font-display font-bold tracking-wide">
                {shipName(s.shipId, s.tutorial)}
              </span>
              <span className="text-ink-400">
                {locationName(s.originId)} → {locationName(s.destinationId)}
              </span>
            </div>
            {!s.deadhead && s.goodId && s.massTonnes !== null && (
              <p className="mt-1 text-ink-200">
                Delivered {s.massTonnes} t {content.good(s.goodId)?.name ?? s.goodId}
                {s.shipper && ` for ${s.shipper}`} {toLocation(s.destinationId)}
              </p>
            )}
            {s.deadhead ? (
              // An empty flight earns nothing: say what it was and what it cost.
              <div className="mt-2 flex items-center gap-1.5 font-display text-ink-300">
                <Icon name="send" className="size-4 shrink-0 text-cyan-300" />
                Deadhead · {formatCredits(s.fuelCost)} fuel
              </div>
            ) : (
              <div className="mt-2 flex gap-4 font-display text-lg font-bold tabular-nums">
                <span className={s.credits >= 0 ? "text-emerald-300" : "text-rose-300"}>
                  {s.credits >= 0 ? "+" : ""}
                  {formatCredits(s.credits)}
                </span>
                <span className="text-violet-300">+{s.pilotXp} XP</span>
              </div>
            )}
            {s.loanRepayment > 0 && (
              <div className="mt-1 text-ink-400">
                {formatCredits(s.loanRepayment)} went to the lender
              </div>
            )}
            {s.scriptedId && (
              <p className="mt-1 text-fuchsia-200 italic">
                {
                  content.scriptedTutorialContracts.find((c) => c.id === s.scriptedId)
                    ?.flavorMessage
                }
              </p>
            )}
            {s.discoveredLocationId && (
              <div className="mt-2 flex items-center gap-1.5 font-display font-semibold text-amber-300">
                <Icon name="star" className="size-4" />
                Discovered {locationName(s.discoveredLocationId)}!
              </div>
            )}
            {s.restEndsAt !== null && (
              <div className="mt-1 flex items-center gap-1.5 text-sky-300">
                <Icon name="rest" className="size-4 shrink-0" />
                <span>
                  {state.pilots.find((p) => p.id === s.pilotId)?.name ?? "The pilot"} is resting
                  until {formatLocalTime(s.restEndsAt)}
                </span>
              </div>
            )}
          </li>
        ))}
        {outOfShop.map((ship) => (
          <li
            key={`shop:${ship.id}`}
            className="flex items-center gap-1.5 rounded-xl border border-amber-400/40 bg-amber-950/30 p-3 text-sm text-amber-200"
          >
            <Icon name="check" className="size-4 shrink-0" />
            {ship.name} is out of the shop:{" "}
            {content.upgrade(ship.shop!.upgradeId)?.name ?? ship.shop!.upgradeId} {ship.shop!.level}
          </li>
        ))}
      </ul>
      {readyGoals.length > 0 && (
        <div className="mt-3 rounded-xl border border-emerald-400/40 bg-emerald-950/40 p-3 text-sm shadow-glow-emerald">
          <h3 className="flex items-center gap-1.5 font-display font-bold text-emerald-300">
            <Icon name="target" className="size-4" />
            Goals ready to claim
          </h3>
          <ul aria-label="Ready goals" className="mt-1 space-y-0.5">
            {readyGoals.map((goal) => (
              <li key={goal.id}>
                {goal.title}{" "}
                <span className="font-display text-amber-300/90">
                  +{formatCredits(goal.reward)}
                </span>
              </li>
            ))}
          </ul>
          <Button
            variant="success"
            size="sm"
            onClick={() => {
              dismiss();
              void navigate({ pathname: "/", hash: "#goals" });
            }}
            className="mt-3"
          >
            Claim on HQ
          </Button>
        </div>
      )}
      <Button block onClick={dismiss} className="mt-4">
        Got it
      </Button>
    </Sheet>
  );
}