import { ReactElement } from "react";
import { useRouter } from "next/router";
import useSWR from "swr";
import { observer } from "mobx-react";
// hooks
import { useProject, useInboxIssues } from "hooks/store";
// layouts
import { AppLayout } from "layouts/app-layout";
// components
import { InboxLayoutLoader } from "components/ui";
import { PageHead } from "components/core";
import { ProjectInboxHeader } from "components/headers";
import { InboxSidebarRoot, InboxContentRoot } from "components/inbox";
// types
import { NextPageWithLayout } from "lib/types";

const ProjectInboxPage: NextPageWithLayout = observer(() => {
  const router = useRouter();
  const { workspaceSlug, projectId, inboxId, inboxIssueId } = router.query;
  // store hooks
  const { currentProjectDetails } = useProject();
  const {
    filters: { fetchInboxFilters },
    issues: { fetchInboxIssues },
  } = useInboxIssues();
  // fetching the Inbox filters and issues
  const { isLoading } = useSWR(
    workspaceSlug && projectId && currentProjectDetails && currentProjectDetails?.inbox_view
      ? `INBOX_ISSUES_${workspaceSlug.toString()}_${projectId.toString()}`
      : null,
    async () => {
      if (workspaceSlug && projectId && inboxId && currentProjectDetails && currentProjectDetails?.inbox_view) {
        await fetchInboxFilters(workspaceSlug.toString(), projectId.toString(), inboxId.toString());
        await fetchInboxIssues(workspaceSlug.toString(), projectId.toString(), inboxId.toString());
      }
    }
  );
  // derived values
  const pageTitle = currentProjectDetails?.name ? `${currentProjectDetails?.name} - Inbox` : undefined;

  if (!workspaceSlug || !projectId || !inboxId || !currentProjectDetails?.inbox_view || isLoading)
    return (
      <div className="flex h-full flex-col">
        <InboxLayoutLoader />
      </div>
    );

  return (
    <>
      <PageHead title={pageTitle} />
      <div className="relative flex h-full overflow-hidden">
        <div className="flex-shrink-0 w-[340px] h-full border-r border-custom-border-300">
          <InboxSidebarRoot
            workspaceSlug={workspaceSlug.toString()}
            projectId={projectId.toString()}
            inboxId={inboxId.toString()}
          />
        </div>
        <div className="w-full">
          <InboxContentRoot
            workspaceSlug={workspaceSlug.toString()}
            projectId={projectId.toString()}
            inboxId={inboxId.toString()}
            inboxIssueId={inboxIssueId?.toString() || undefined}
          />
        </div>
      </div>
    </>
  );
});

ProjectInboxPage.getLayout = function getLayout(page: ReactElement) {
  return (
    <AppLayout header={<ProjectInboxHeader />} withProjectWrapper>
      {page}
    </AppLayout>
  );
};

export default ProjectInboxPage;