"use client";

import { CheckCircle2, ListChecks, Plus, Sparkles } from "lucide-react";
import Link from "next/link";
import { useState } from "react";
import { Button } from "@/components/ui/button";
import { useAutoRefresh } from "@/hooks/use-auto-refresh";
import { tr } from "@/i18n/tr";
import { formatDate } from "@/shared/format";
import { SHOPPING_REFRESH_MS } from "@/shared/shopping";
import type { ShoppingListSummary } from "../service";
import { ShoppingListDialog } from "./list-dialog";

const t = tr.shopping;

function ListCard({ list }: { list: ShoppingListSummary }) {
  const done = list.status === "completed";
  const Icon = done ? CheckCircle2 : ListChecks;
  return (
    <li>
      <Link
        href={`/alisveris/${list.id}`}
        className="flex h-full flex-col gap-2 rounded-xl border bg-card p-4 transition-colors hover:bg-accent/40 focus-visible:ring-2 focus-visible:ring-ring focus-visible:outline-none"
      >
        <div className="flex items-start gap-3">
          <span className="flex size-9 shrink-0 items-center justify-center rounded-lg bg-muted">
            <Icon className="size-4.5 text-muted-foreground" aria-hidden />
          </span>
          <div className="min-w-0 flex-1">
            <p className="truncate font-medium">{list.name}</p>
            <p className="text-xs text-muted-foreground tabular-nums">
              {t.itemCount(list.itemCount)}
              {list.checkedCount && !done
                ? ` · ${t.checkedCount(list.checkedCount, list.itemCount)}`
                : ""}
            </p>
          </div>
        </div>
        {list.preview.length ? (
          <p className="line-clamp-2 text-sm text-muted-foreground">
            {list.preview.join(", ")}
            {list.itemCount > list.preview.length ? "…" : ""}
          </p>
        ) : (
          <p className="text-sm text-muted-foreground">{t.emptyList}</p>
        )}
        <p className="mt-auto text-xs text-muted-foreground">
          {done && list.completedAt
            ? t.completedAt(formatDate(list.completedAt))
            : t.updated(formatDate(list.updatedAt))}
        </p>
      </Link>
    </li>
  );
}

/** /alisveris: aktif ve tamamlanan listeler, yeni liste, bekleyen stok önerileri. */
export function ShoppingListsView({
  active,
  completed,
  suggestions,
  canWrite,
}: {
  active: ShoppingListSummary[];
  completed: ShoppingListSummary[];
  suggestions: number;
  canWrite: boolean;
}) {
  const [creating, setCreating] = useState(false);
  useAutoRefresh(SHOPPING_REFRESH_MS);

  return (
    <div className="flex flex-col gap-6">
      {suggestions > 0 ? (
        <p className="flex items-start gap-2 rounded-lg border border-amber-500/40 bg-amber-500/5 p-3 text-sm">
          <Sparkles className="mt-0.5 size-4 shrink-0 text-amber-600" aria-hidden />
          {t.suggestionsBanner(suggestions)}
        </p>
      ) : null}
      <section className="flex flex-col gap-3">
        <div className="flex items-center gap-3">
          <h2 className="text-sm font-medium text-muted-foreground">{t.active}</h2>
          {canWrite ? (
            <Button size="sm" className="ml-auto" onClick={() => setCreating(true)}>
              <Plus />
              {t.newList}
            </Button>
          ) : null}
        </div>
        {active.length ? (
          <ul className="grid gap-3 md:grid-cols-2 xl:grid-cols-3">
            {active.map((l) => (
              <ListCard key={l.id} list={l} />
            ))}
          </ul>
        ) : (
          <p className="rounded-lg border border-dashed p-6 text-center text-sm text-muted-foreground">
            {t.emptyActive}
          </p>
        )}
      </section>
      {completed.length ? (
        <section className="flex flex-col gap-3">
          <h2 className="text-sm font-medium text-muted-foreground">{t.completed}</h2>
          <ul className="grid gap-3 md:grid-cols-2 xl:grid-cols-3">
            {completed.map((l) => (
              <ListCard key={l.id} list={l} />
            ))}
          </ul>
        </section>
      ) : null}
      {creating ? <ShoppingListDialog list={null} onClose={() => setCreating(false)} /> : null}
    </div>
  );
}