import type { LoaderFunctionArgs } from "react-router";
import { getTranslations } from "~/locale/i18next.server";
import { createMetrics } from "~/modules/metrics/services/.server/MetricTracker";
import { adminGetAllTenantsWithUsage, type TenantWithUsage } from "~/utils/db/tenants.db.server";
import { getPaginationFromCurrentUrl } from "~/utils/helpers/RowPaginationHelper";
import PeriodHelper from "~/utils/helpers/PeriodHelper";
import { promiseHash } from "~/utils/promises/promiseHash";
import { getAdminDashboardStats } from "~/utils/services/adminDashboardService";
import { getSetupSteps } from "~/utils/services/setupService";
import type { SetupItem } from "~/application/dtos/setup/SetupItem";
import type { Stat } from "~/application/dtos/stats/Stat";
import type { PaginationDto } from "~/application/dtos/data/PaginationDto";

export type AdminDashboardLoaderData = {
  title: string;
  stats: Stat[];
  setupSteps: SetupItem[];
  tenants: {
    items: TenantWithUsage[];
    pagination: PaginationDto;
  };
};

type AdminDashboardDataArgs = Pick<LoaderFunctionArgs, "request" | "params">;

export async function loadAdminDashboardRouteData({ request, params }: AdminDashboardDataArgs) {
  const { time, getServerTimingHeader } = await createMetrics({ request, params }, "admin.dashboard");
  const urlSearchParams = new URL(request.url).searchParams;
  const currentPagination = getPaginationFromCurrentUrl(urlSearchParams);

  const { t } = await time(getTranslations(request), "getTranslations");
  const { stats, setupSteps, tenants } = await time(
    promiseHash({
      stats: time(
        getAdminDashboardStats({ t, gte: PeriodHelper.getGreaterThanOrEqualsFromRequest({ request }) }),
        "admin.dashboard.details.getAdminDashboardStats"
      ),
      setupSteps: time(getSetupSteps(), "admin.dashboard.details.getSetupSteps"),
      tenants: time(adminGetAllTenantsWithUsage(undefined, currentPagination), "admin.dashboard.details.adminGetAllTenantsWithUsage"),
    }),
    "admin.dashboard.details"
  );

  const data: AdminDashboardLoaderData = {
    title: `${t("app.sidebar.dashboard")} | ${process.env.APP_NAME}`,
    stats,
    setupSteps,
    tenants,
  };
  return { data, headers: getServerTimingHeader() };
}