import { getTranslations } from "next-intl/server";
import { ScrollText } from "lucide-react";
import { StatusCard } from "@/components/admin/dashboard";
import { prisma } from "@/lib/prisma";
import { buildStaffActivityWhere } from "@/lib/admin/log-filters";

export const dynamic = "force-dynamic";

const PER_PAGE = 25;

function fromDate(d: Date | null | undefined): string {
  return d ? d.toISOString().slice(0, 16).replace("T", " ") : "—";
}

export default async function AdminStaffActivities({
  searchParams,
}: {
  searchParams: Promise<{ q?: string; page?: string; staffId?: string; action?: string; authorization?: string }>;
}) {
  const t = await getTranslations("pages.admin.logs");

  const sp = await searchParams;
  const q = (sp.q ?? "").trim();
  const page = Math.max(1, Number(sp.page ?? "1") || 1);
  const staffId = sp.staffId ? Number(sp.staffId) : null;
  const action = sp.action ?? null;
  const authorizationOnly = sp.authorization === "1";
  const whereClause = buildStaffActivityWhere({ q, staffId, action, authorizationOnly });

  const activities = await prisma.staffActivities
    .findMany({
      where: whereClause,
      select: {
        id: true,
        userId: true,
        action: true,
        description: true,
        targetType: true,
        targetId: true,
        ipAddress: true,
        createdAt: true,
      },
      orderBy: { createdAt: "desc" },
      skip: (page - 1) * PER_PAGE,
      take: PER_PAGE,
    })
    .catch(() => []);

  const staffIds = Array.from(new Set(activities.map((a) => Number(a.userId)))).filter((n) => n > 0);
  let nameById = new Map<number, string>();
  if (staffIds.length) {
    const users = await prisma.user
      .findMany({ where: { id: { in: staffIds } }, select: { id: true, username: true } })
      .catch(() => []);
    nameById = new Map(users.map((x) => [x.id, x.username]));
  }

  const total = await prisma.staffActivities.count({ where: whereClause }).catch(() => 0);

  const pages = Math.max(1, Math.ceil(total / PER_PAGE));

  const onlineCount = activities.filter(
    (a) => a.createdAt && new Date(a.createdAt).getTime() > Date.now() - 60000,
  ).length;

  return (
    <main>
      <div className="flex items-center gap-3 mb-6">
        <div className="w-10 h-10 rounded-xl bg-gradient-to-br from-[var(--color-primary)]/20 to-[var(--color-primary)]/5 grid place-items-center">
          <ScrollText size={20} className="text-[var(--color-primary)]" />
        </div>
        <div>
          <h1 className="m-0 text-xl font-extrabold text-[var(--color-text)]">{t("title")}</h1>
          <p className="m-0 text-xs text-[var(--color-text-muted)] mt-0.5">{t("subtitle")}</p>
        </div>
      </div>

      <div className="grid grid-cols-[repeat(auto-fit,minmax(180px,1fr))] gap-3.5 mb-6">
        <StatusCard label={t("totalActivities")} value={total} icon="📋" />
        <StatusCard label={t("onThisPage")} value={activities.length} icon="📄" />
        <StatusCard
          label={t("recent")}
          value={onlineCount}
          state={onlineCount > 0 ? "ok" : "neutral"}
          icon="🟢"
        />
      </div>

      <form className="admin-card flex gap-2 mb-6 flex-wrap">
        <input
          name="q"
          defaultValue={q}
          placeholder={t("searchPlaceholder")}
          className="flex-1 min-w-[200px]"
        />
        <label className="flex items-center gap-2 text-sm">
          <input type="checkbox" name="authorization" value="1" defaultChecked={authorizationOnly} />
          Authorization errors
        </label>
        <input
          name="staffId"
          defaultValue={staffId?.toString()}
          placeholder={t("staffId")}
          className="w-[120px]"
        />
        <input
          name="action"
          defaultValue={action ?? ""}
          placeholder={t("actionType")}
          className="w-[160px]"
        />

        <button type="submit" className="btn btn-primary">
          {t("filter")}
        </button>
        {(q || staffId || action || authorizationOnly) && (
          <a href="/admin/logs" className="btn btn-outline">
            {t("clearFilters")}
          </a>
        )}
      </form>

      <section className="mt-6">
        <h2 className="admin-section-title">{t("activities", { count: total })}</h2>
        {activities.length === 0 ? (
          <div className="admin-empty">{t("noResults")}</div>
        ) : (
          <div className="overflow-x-auto">
            <table>
              <thead>
                <tr>
                  <th>{t("colWhen")}</th>
                  <th>{t("colStaff")}</th>
                  <th>{t("colAction")}</th>
                  <th>{t("colDescription")}</th>
                  <th>{t("colTarget")}</th>
                  <th>{t("colIp")}</th>
                </tr>
              </thead>
              <tbody>
                {activities.map((a) => (
                  <tr key={String(a.id)}>
                    <td className="text-sm theme-text-muted dark:theme-text-muted whitespace-nowrap">
                      {fromDate(a.createdAt)}
                    </td>
                    <td className="text-sm theme-text-muted dark:theme-text-muted whitespace-nowrap">
                      {t("staffWithId", {
                        id: Number(a.userId),
                        name: nameById.get(Number(a.userId)) ?? "unknown",
                      })}
                    </td>
                    <td>
                      <span className="inline-block text-[0.72rem] font-bold px-2 py-0.5 rounded-full bg-[var(--color-primary)]/18 text-[var(--color-text)]">
                        {a.action}
                      </span>
                    </td>
                    <td>{a.description}</td>
                    <td>
                      {a.targetType && a.targetId ? (
                        <span className="text-sm theme-text-muted dark:theme-text-muted">
                          {a.targetType === "user" ? t("userPrefix") : ""}#{String(a.targetId)}
                        </span>
                      ) : (
                        <span className="text-sm theme-text-muted dark:theme-text-muted">—</span>
                      )}
                    </td>
                    <td className="text-sm theme-text-muted dark:theme-text-muted whitespace-nowrap">
                      {a.ipAddress || "—"}
                    </td>
                  </tr>
                ))}
              </tbody>
            </table>
          </div>
        )}
      </section>

      <p className="text-xs theme-text-muted dark:theme-text-muted">
        {t("pagination", { page, pages, total })}
        {page < pages ? (
          <>
            {" · "}
            <a
              href={`/admin/logs?q=${encodeURIComponent(q)}&staffId=${staffId || ""}&action=${action || ""}&authorization=${authorizationOnly ? "1" : ""}&page=${page + 1}`}
            >
              {t("next")} →
            </a>
          </>
        ) : null}
      </p>
    </main>
  );
}