import { useState, ReactElement } from "react";
import { useRouter } from "next/router";
import useSWR from "swr";
// mobx store
import { useMobxStore } from "lib/mobx/store-provider";
// services
import { ModuleService } from "services/module.service";
// hooks
import useLocalStorage from "hooks/use-local-storage";
import useToast from "hooks/use-toast";
import useUser from "hooks/use-user";
// layouts
import { AppLayout } from "layouts/app-layout";
// components
import { ExistingIssuesListModal } from "components/core";
import { ModuleDetailsSidebar } from "components/modules";
import { ModuleLayoutRoot } from "components/issues";
import { ModuleIssuesHeader } from "components/headers";
// ui
import { EmptyState } from "components/common";
// assets
import emptyModule from "public/empty-state/module.svg";
// types
import { NextPageWithLayout } from "types/app";
import { ISearchIssueResponse } from "types";

const moduleService = new ModuleService();

const ModuleIssuesPage: NextPageWithLayout = () => {
  // states
  const [moduleIssuesListModal, setModuleIssuesListModal] = useState(false);
  // router
  const router = useRouter();
  const { workspaceSlug, projectId, moduleId } = router.query;
  // store
  const { module: moduleStore } = useMobxStore();
  // hooks
  const { user } = useUser();
  const { setToastAlert } = useToast();
  // local storage
  const { setValue, storedValue } = useLocalStorage("module_sidebar_collapsed", "false");
  const isSidebarCollapsed = storedValue ? (storedValue === "true" ? true : false) : false;

  const { error } = useSWR(
    workspaceSlug && projectId && moduleId ? `CURRENT_MODULE_DETAILS_${moduleId.toString()}` : null,
    workspaceSlug && projectId && moduleId
      ? () => moduleStore.fetchModuleDetails(workspaceSlug.toString(), projectId.toString(), moduleId.toString())
      : null
  );

  // TODO: add this function to bulk add issues to cycle
  const handleAddIssuesToModule = async (data: ISearchIssueResponse[]) => {
    if (!workspaceSlug || !projectId) return;

    const payload = {
      issues: data.map((i) => i.id),
    };

    await moduleService
      .addIssuesToModule(workspaceSlug as string, projectId as string, moduleId as string, payload, user)
      .catch(() =>
        setToastAlert({
          type: "error",
          title: "Error!",
          message: "Selected issues could not be added to the module. Please try again.",
        })
      );
  };

  const openIssuesListModal = () => {
    setModuleIssuesListModal(true);
  };

  const toggleSidebar = () => {
    setValue(`${!isSidebarCollapsed}`);
  };

  return (
    <>
      {/* TODO: Update logic to bulk add issues to a cycle */}
      <ExistingIssuesListModal
        isOpen={moduleIssuesListModal}
        handleClose={() => setModuleIssuesListModal(false)}
        searchParams={{ module: true }}
        handleOnSubmit={handleAddIssuesToModule}
      />
      {error ? (
        <EmptyState
          image={emptyModule}
          title="Module does not exist"
          description="The module you are looking for does not exist or has been deleted."
          primaryButton={{
            text: "View other modules",
            onClick: () => router.push(`/${workspaceSlug}/projects/${projectId}/modules`),
          }}
        />
      ) : (
        <div className="flex h-full w-full">
          <div className="h-full w-full overflow-hidden">
            <ModuleLayoutRoot openIssuesListModal={openIssuesListModal} />
          </div>
          {moduleId && !isSidebarCollapsed && (
            <div
              className="flex flex-col gap-3.5 h-full w-[24rem] z-10 overflow-y-auto border-l border-custom-border-100 bg-custom-sidebar-background-100 px-6 py-3.5 duration-300 flex-shrink-0"
              style={{
                boxShadow:
                  "0px 1px 4px 0px rgba(0, 0, 0, 0.06), 0px 2px 4px 0px rgba(16, 24, 40, 0.06), 0px 1px 8px -1px rgba(16, 24, 40, 0.06)",
              }}
            >
              <ModuleDetailsSidebar moduleId={moduleId.toString()} handleClose={toggleSidebar} />
            </div>
          )}
        </div>
      )}
    </>
  );
};

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

export default ModuleIssuesPage;