import { useState } from "react";

import Link from "next/link";
import { useRouter } from "next/router";

import useSWR from "swr";

// services
import workspaceServices from "services/workspace.service";
// layouts
import Container from "layouts/container";
import AppSidebar from "layouts/app-layout/app-sidebar";
import AppHeader from "layouts/app-layout/app-header";
import SettingsNavbar from "layouts/settings-navbar";
import { UserAuthorizationLayout } from "./user-authorization-wrapper";
// components
import { NotAuthorizedView, NotAWorkspaceMember } from "components/auth-screens";
import { CommandPalette } from "components/command-palette";
// icons
import { PrimaryButton, Spinner } from "components/ui";
import { LayerDiagonalIcon } from "components/icons";
// fetch-keys
import { WORKSPACE_MEMBERS_ME } from "constants/fetch-keys";

type Meta = {
  title?: string | null;
  description?: string | null;
  image?: string | null;
  url?: string | null;
};

type Props = {
  meta?: Meta;
  children: React.ReactNode;
  noPadding?: boolean;
  noHeader?: boolean;
  bg?: "primary" | "secondary";
  breadcrumbs?: JSX.Element;
  left?: JSX.Element;
  right?: JSX.Element;
  profilePage?: boolean;
};

export const WorkspaceAuthorizationLayout: React.FC<Props> = ({
  meta,
  children,
  noPadding = false,
  noHeader = false,
  bg = "primary",
  breadcrumbs,
  left,
  right,
  profilePage = false,
}) => {
  const [toggleSidebar, setToggleSidebar] = useState(false);

  const router = useRouter();
  const { workspaceSlug } = router.query;

  const { data: workspaceMemberMe, error } = useSWR(
    workspaceSlug ? WORKSPACE_MEMBERS_ME(workspaceSlug as string) : null,
    workspaceSlug ? () => workspaceServices.workspaceMemberMe(workspaceSlug.toString()) : null,
    {
      onErrorRetry(err, key, config, revalidate, revalidateOpts) {
        if (err.status === 401 || err.status === 403) return;
        revalidateOpts.retryCount = 5;
      },
    }
  );

  if (!workspaceMemberMe && !error)
    return (
      <div className="h-screen grid place-items-center p-4">
        <div className="flex flex-col items-center gap-3 text-center">
          <h3 className="text-xl">Loading your workspace...</h3>
          <Spinner />
        </div>
      </div>
    );

  if (error?.status === 401 || error?.status === 403) return <NotAWorkspaceMember />;

  // FIXME: show 404 for workspace not workspace member
  if (error?.status === 404) {
    return (
      <div className="container h-screen flex justify-center items-center">
        <p className="text-2xl font-semibold">No such workspace exist. Create one?</p>
      </div>
    );
  }

  const settingsLayout = router.pathname.includes("/settings");
  const memberType = {
    isOwner: workspaceMemberMe?.role === 20,
    isMember: workspaceMemberMe?.role === 15,
    isViewer: workspaceMemberMe?.role === 10,
    isGuest: workspaceMemberMe?.role === 5,
  };

  return (
    <UserAuthorizationLayout>
      <Container meta={meta}>
        <CommandPalette />
        <div className="flex h-screen w-full overflow-x-hidden">
          <AppSidebar toggleSidebar={toggleSidebar} setToggleSidebar={setToggleSidebar} />
          {settingsLayout && (memberType?.isGuest || memberType?.isViewer) ? (
            <NotAuthorizedView
              actionButton={
                <Link href={`/${workspaceSlug}`}>
                  <a>
                    <PrimaryButton className="flex items-center gap-1">
                      <LayerDiagonalIcon height={16} width={16} color="white" /> Go to workspace
                    </PrimaryButton>
                  </a>
                </Link>
              }
              type="workspace"
            />
          ) : (
            <main className="flex h-screen w-full min-w-0 flex-col overflow-y-auto">
              {!noHeader && (
                <AppHeader
                  breadcrumbs={breadcrumbs}
                  left={left}
                  right={right}
                  setToggleSidebar={setToggleSidebar}
                />
              )}
              <div
                className={`flex w-full flex-grow flex-col ${
                  noPadding ? "" : settingsLayout || profilePage ? "p-8 lg:px-28" : "p-8"
                } ${
                  bg === "primary"
                    ? "bg-primary"
                    : bg === "secondary"
                    ? "bg-secondary"
                    : "bg-primary"
                }`}
              >
                {(settingsLayout || profilePage) && (
                  <div className="mb-12 space-y-6">
                    <div>
                      <h3 className="text-3xl font-semibold">
                        {profilePage ? "Profile" : "Workspace"} Settings
                      </h3>
                      <p className="mt-1 text-gray-600">
                        {profilePage
                          ? "This information will be visible to only you."
                          : "This information will be displayed to every member of the workspace."}
                      </p>
                    </div>
                    <SettingsNavbar profilePage={profilePage} />
                  </div>
                )}
                {children}
              </div>
            </main>
          )}
        </div>
      </Container>
    </UserAuthorizationLayout>
  );
};
