import type { Metadata } from "next";
import { notFound } from "next/navigation";
import { ContentCard, EmptyState, OnlineBadge, StatBlock } from "@/components/public/ui";
import { auth } from "@/lib/auth";
import { avatarImageUrl } from "@/lib/format";
import { prisma } from "@/lib/prisma";
import { siteSettings } from "@/lib/services/site-settings";
import { postGuestbook } from "@/actions/guestbook";

export const dynamic = "force-dynamic";

export async function generateMetadata({
  params,
}: {
  params: Promise<{ username: string }>;
}): Promise<Metadata> {
  const { username } = await params;
  const user = await prisma.user
    .findUnique({ where: { username }, select: { username: true, motto: true } })
    .catch(() => null);
  if (!user) return { title: "Profile" };
  return { title: user.username, description: user.motto || `${user.username}'s profile` };
}

// Canonical Habbo badge image CDN. Badge codes (e.g. "ADM") map to a .gif here.
const BADGE_IMG_BASE = "https://images.habbo.com/c_images/album1584";

function formatTimestamp(ts: number | null | undefined): string {
  if (!ts) return "";
  return new Date(ts * 1000).toISOString().slice(0, 10);
}

function formatDate(d: Date | null | undefined): string {
  return d ? d.toISOString().slice(0, 10) : "";
}

export default async function ProfilePage({
  params,
}: {
  params: Promise<{ username: string }>;
}) {
  const { username } = await params;

  const [user, imagerBase, session] = await Promise.all([
    prisma.user.findUnique({
      where: { username },
      select: {
        id: true,
        username: true,
        motto: true,
        look: true,
        rank: true,
        credits: true,
        online: true,
        accountCreated: true,
      },
    }),
    siteSettings.get("habbo_imaging_url", "https://www.habbo.com/habbo-imaging/avatarimage"),
    auth(),
  ]);

  if (!user) notFound();

  const avatar = avatarImageUrl(imagerBase ?? "", user.look, { size: "l" });
  const registered = new Date(user.accountCreated * 1000).toISOString().slice(0, 10);
  const isLoggedIn = Boolean(session?.user?.id);

  // Profile sub-sections. Each query is isolated so a DB hiccup degrades that
  // single section to empty rather than 500-ing the whole profile.
  const badges = await prisma.usersBadges
    .findMany({
      where: { userId: user.id },
      orderBy: { slotId: "asc" },
    })
    .catch(() => []);

  const photos = await prisma.cameraWeb
    .findMany({
      where: { userId: user.id },
      orderBy: { timestamp: "desc" },
      take: 6,
    })
    .catch(() => []);

  const guestbook = await prisma.websiteUserGuestbooks
    .findMany({
      where: { profileId: user.id },
      orderBy: { createdAt: "desc" },
      take: 30,
    })
    .catch(() => []);

  // Resolve author usernames/looks for the guestbook entries in one query.
  const authorIds = Array.from(new Set(guestbook.map((g) => g.userId)));
  const authors = authorIds.length
    ? await prisma.user
        .findMany({
          where: { id: { in: authorIds } },
          select: { id: true, username: true, look: true },
        })
        .catch(() => [])
    : [];
  const authorById = new Map(authors.map((a) => [a.id, a]));

  return (
    <main style={{ display: "grid", gap: "1.5rem" }}>
      {/* ── Profile header ───────────────────────────────────── */}
      <ContentCard padded={false}>
        <div
          className="content-card-body"
          style={{ display: "flex", gap: "1.5rem", alignItems: "center", flexWrap: "wrap" }}
        >
          {/* eslint-disable-next-line @next/next/no-img-element */}
          <img src={avatar} alt={`${user.username} avatar`} width={100} height={150} />
          <div style={{ minWidth: 0, flex: 1 }}>
            <h1 style={{ margin: "0 0 0.25rem" }}>{user.username}</h1>
            <p style={{ margin: "0 0 0.6rem" }}>
              {user.motto || <span className="muted">No motto</span>}
            </p>
            <OnlineBadge online={user.online === "1"} />
          </div>
        </div>
        <div className="stat-grid" style={{ padding: "0 1.1rem 1.1rem" }}>
          <StatBlock icon="🏅" value={user.rank} label="Rank" />
          <StatBlock icon="💰" value={user.credits.toLocaleString()} label="Credits" />
          <StatBlock icon="📅" value={registered} label="Registered" />
        </div>
      </ContentCard>

      {/* ── Badges ───────────────────────────────────────────── */}
      <ContentCard icon="🏅" title="Badges" padded={badges.length === 0}>
        {badges.length === 0 ? (
          <EmptyState icon="🏅">No badges yet.</EmptyState>
        ) : (
          <div
            style={{
              display: "flex",
              flexWrap: "wrap",
              gap: "0.75rem",
              alignItems: "center",
              padding: "1rem",
            }}
          >
            {badges.map((b) => (
              /* eslint-disable-next-line @next/next/no-img-element */
              <img
                key={b.id}
                src={`${BADGE_IMG_BASE}/${b.badgeCode}.gif`}
                alt={b.badgeCode}
                title={b.badgeCode}
                width={40}
                height={40}
              />
            ))}
          </div>
        )}
      </ContentCard>

      {/* ── Photos ───────────────────────────────────────────── */}
      <ContentCard icon="📸" title="Photos" padded={photos.length === 0}>
        {photos.length === 0 ? (
          <EmptyState icon="📸">No photos yet.</EmptyState>
        ) : (
          <div className="card-grid sm-2 lg-3" style={{ padding: "1rem" }}>
            {photos.map((p) => (
              <div key={p.id} className="card" style={{ padding: "0.5rem" }}>
                {/* eslint-disable-next-line @next/next/no-img-element */}
                <img
                  src={p.url}
                  alt={`Photo by ${user.username}`}
                  style={{ width: "100%", height: "auto", display: "block", borderRadius: "8px" }}
                />
                <p className="muted" style={{ margin: "0.4rem 0 0" }}>
                  {formatTimestamp(p.timestamp)}
                </p>
              </div>
            ))}
          </div>
        )}
      </ContentCard>

      {/* ── Guestbook ────────────────────────────────────────── */}
      <ContentCard icon="📝" title="Guestbook" subtitle={`Messages on ${user.username}'s wall`}>
        {isLoggedIn ? (
          <form action={postGuestbook} className="card" style={{ marginBottom: "1rem" }}>
            {/* Profile owner id drives the write target; the author is taken from
                the session inside the action, never from this form. */}
            <input type="hidden" name="profileId" value={String(user.id)} />
            <input type="hidden" name="username" value={user.username} />
            <label htmlFor="gb-message" className="muted">
              Leave a message
            </label>
            <textarea
              id="gb-message"
              name="message"
              required
              maxLength={255}
              rows={3}
              placeholder={`Write something on ${user.username}'s guestbook…`}
              style={{ width: "100%", margin: "0.4rem 0 0.75rem", resize: "vertical" }}
            />
            <button type="submit" className="btn btn-primary">
              Post
            </button>
          </form>
        ) : (
          <p className="muted">Log in to leave a guestbook message.</p>
        )}

        {guestbook.length === 0 ? (
          <EmptyState icon="📝">No guestbook entries yet.</EmptyState>
        ) : (
          <div className="grid" style={{ gap: "0.75rem" }}>
            {guestbook.map((g) => {
              const author = authorById.get(g.userId);
              const authorAvatar = author
                ? avatarImageUrl(imagerBase ?? "", author.look, { size: "s", headOnly: true })
                : null;
              return (
                <div
                  key={String(g.id)}
                  className="card"
                  style={{ display: "flex", gap: "0.75rem", alignItems: "flex-start" }}
                >
                  {authorAvatar ? (
                    /* eslint-disable-next-line @next/next/no-img-element */
                    <img
                      className="avatar"
                      src={authorAvatar}
                      alt={author?.username ?? "author"}
                      width={40}
                      height={40}
                    />
                  ) : null}
                  <div style={{ flex: 1 }}>
                    <p style={{ margin: "0 0 0.25rem" }}>
                      <strong>{author?.username ?? `User #${g.userId}`}</strong>{" "}
                      <span className="muted">{formatDate(g.createdAt)}</span>
                    </p>
                    <p style={{ margin: 0 }}>{g.message}</p>
                  </div>
                </div>
              );
            })}
          </div>
        )}
      </ContentCard>
    </main>
  );
}