import Link from "next/link";
import { notFound } from "next/navigation";
import Image from "next/image";
import { createClient } from "@/lib/supabase/server";
import { getCurrentUser } from "@/lib/dal";
import { Badge } from "@/components/ui/badge";
import { Button } from "@/components/ui/button";
import { OfferForm } from "@/components/offers/offer-form";
import { OfferList } from "@/components/offers/offer-list";

export default async function NeedDetailPage({
  params,
}: {
  params: Promise<{ id: string }>;
}) {
  const { id } = await params;
  const supabase = await createClient();
  const user = await getCurrentUser();

  const { data: need } = await supabase
    .from("needs")
    .select(
      "id, title, description, city, region, budget_min, budget_max, status, author_id, categories(name), need_images(storage_path, position)"
    )
    .eq("id", id)
    .single();

  if (!need) {
    notFound();
  }

  const images = [...(need.need_images ?? [])].sort(
    (a, b) => a.position - b.position
  );
  const isOwner = user?.id === need.author_id;
  const category = Array.isArray(need.categories)
    ? need.categories[0]
    : need.categories;

  const { data: offers } = await supabase
    .from("offers")
    .select(
      "id, title, description, price, status, merchant_id, profiles(full_name), offer_images(storage_path, position)"
    )
    .eq("need_id", id)
    .order("created_at", { ascending: true });

  const offerList = offers ?? [];
  const myOffer = user ? offerList.find((o) => o.merchant_id === user.id) : undefined;

  function getOfferImageUrl(path: string) {
    return supabase.storage.from("offer-images").getPublicUrl(path).data
      .publicUrl;
  }

  return (
    <div className="mx-auto max-w-2xl px-4 py-8 sm:px-6 sm:py-10">
      <div className="flex items-center gap-2">
        {category?.name && <Badge variant="secondary">{category.name}</Badge>}
        <Badge
          variant={need.status === "open" ? "default" : "outline"}
        >
          {need.status}
        </Badge>
      </div>
      <h1 className="mt-3 text-2xl font-semibold">{need.title}</h1>
      <p className="mt-1 text-muted-foreground">
        {need.city}
        {need.region ? `, ${need.region}` : ""}
      </p>
      {(need.budget_min || need.budget_max) && (
        <p className="mt-1 text-sm">
          Budget : {need.budget_min ?? "?"}€ – {need.budget_max ?? "?"}€
        </p>
      )}

      {images.length > 0 && (
        <div className="mt-6 flex flex-wrap gap-3">
          {images.map((img) => {
            const { data } = supabase.storage
              .from("need-images")
              .getPublicUrl(img.storage_path);
            return (
              <div
                key={img.storage_path}
                className="relative h-32 w-32 overflow-hidden rounded-md border"
              >
                <Image
                  src={data.publicUrl}
                  alt={need.title}
                  fill
                  className="object-cover"
                />
              </div>
            );
          })}
        </div>
      )}

      <p className="mt-6 whitespace-pre-wrap">{need.description}</p>

      <div className="mt-10 border-t pt-6">
        {isOwner ? (
          <>
            <h2 className="text-lg font-semibold">Offres reçues</h2>
            <OfferList
              offers={offerList}
              needId={need.id}
              needStatus={need.status}
              isOwner
              getImageUrl={getOfferImageUrl}
            />
          </>
        ) : !user ? (
          <p className="text-sm text-muted-foreground">
            <Link href="/auth/login" className="underline">
              Connecte-toi
            </Link>{" "}
            pour proposer une offre sur ce besoin.
          </p>
        ) : myOffer ? (
          <>
            <h2 className="text-lg font-semibold">Ton offre</h2>
            <OfferList
              offers={[myOffer]}
              needId={need.id}
              needStatus={need.status}
              isOwner={false}
              getImageUrl={getOfferImageUrl}
            />
          </>
        ) : need.status === "open" ? (
          <>
            <h2 className="text-lg font-semibold">Proposer une offre</h2>
            <div className="mt-4">
              <OfferForm needId={need.id} />
            </div>
          </>
        ) : (
          <p className="text-sm text-muted-foreground">
            Ce besoin n&apos;accepte plus d&apos;offres.
          </p>
        )}
      </div>

      {isOwner && (
        <p className="mt-4 text-xs text-muted-foreground">
          <Button asChild variant="link" className="h-auto p-0 text-xs">
            <Link href="/messages">Voir mes conversations</Link>
          </Button>
        </p>
      )}
    </div>
  );
}