/**
 * Copyright (c) 2023-present Plane Software, Inc. and contributors
 * SPDX-License-Identifier: AGPL-3.0-only
 * See the LICENSE file for details.
 */

import { useEffect, useState } from "react";
import { observer } from "mobx-react";
import { PanelLeft } from "lucide-react";
import { useTranslation } from "@plane/i18n";
import { TransferIcon } from "@plane/propel/icons";
import type { TInboxIssueCurrentTab } from "@plane/types";
import { EInboxIssueCurrentTab } from "@plane/types";
import { cn } from "@plane/utils";
import { useProjectExternalContours } from "@/hooks/store/use-project-external-contours";
import { ExternalContoursContentRoot } from "./content-root";
import { ExternalContoursEmptyState } from "./empty-state";
import { ExternalContoursSidebar } from "./sidebar";

type TExternalContoursRoot = {
  workspaceSlug: string;
  projectId: string;
  inboxIssueId: string | undefined;
  navigationTab?: TInboxIssueCurrentTab | undefined;
};

export const ExternalContoursRoot = observer(function ExternalContoursRoot(props: TExternalContoursRoot) {
  const { workspaceSlug, projectId, inboxIssueId, navigationTab } = props;
  const [isMobileSidebar, setIsMobileSidebar] = useState(true);
  const { t } = useTranslation();
  const { loader, error, currentTab, currentProjectId, requestIds, handleCurrentTab, fetchRequests } =
    useProjectExternalContours();

  useEffect(() => {
    if (!workspaceSlug || !projectId) return;

    const resolvedTab = navigationTab || EInboxIssueCurrentTab.OPEN;
    const hasProjectChanged = currentProjectId && currentProjectId !== projectId;

    if (hasProjectChanged) {
      void handleCurrentTab(workspaceSlug, projectId, EInboxIssueCurrentTab.OPEN);
      return;
    }

    if (currentProjectId === projectId && currentTab === resolvedTab) {
      if (loader === "init-loading") return;
      if (requestIds.length > 0) return;
    }

    if (currentTab !== resolvedTab) {
      void handleCurrentTab(workspaceSlug, projectId, resolvedTab);
      return;
    }

    void fetchRequests(workspaceSlug.toString(), projectId.toString(), resolvedTab);
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [workspaceSlug, projectId, navigationTab]);

  if (error && error?.status === "init-error") {
    return (
      <div className="relative flex h-full w-full flex-col items-center justify-center gap-3">
        <TransferIcon className="size-[60px]" strokeWidth={1.5} />
        <div className="text-secondary">{error?.message}</div>
      </div>
    );
  }

  return (
    <>
      {!inboxIssueId && (
        <div className="flex h-12 w-full items-center border-b border-subtle px-4 lg:hidden">
          <PanelLeft
            onClick={() => setIsMobileSidebar(!isMobileSidebar)}
            className={cn("h-4 w-4", isMobileSidebar ? "text-accent-primary" : "text-secondary")}
          />
        </div>
      )}
      <div className="flex h-full w-full overflow-hidden bg-surface-1 pt-2">
        <div
          className={cn(
            "absolute top-[50px] bottom-0 z-10 w-full flex-shrink-0 bg-surface-1 transition-all lg:!relative lg:!top-0 lg:w-2/6",
            isMobileSidebar ? "translate-x-0" : "-translate-x-full lg:!translate-x-0"
          )}
        >
          <ExternalContoursSidebar
            setIsMobileSidebar={setIsMobileSidebar}
            workspaceSlug={workspaceSlug.toString()}
            projectId={projectId.toString()}
            inboxIssueId={inboxIssueId}
          />
        </div>

        {inboxIssueId ? (
          <ExternalContoursContentRoot
            setIsMobileSidebar={setIsMobileSidebar}
            isMobileSidebar={isMobileSidebar}
            workspaceSlug={workspaceSlug.toString()}
            projectId={projectId.toString()}
            inboxIssueId={inboxIssueId.toString()}
          />
        ) : (
          <div className="flex h-full w-full flex-col overflow-hidden px-8">
            <div className="hidden h-20 shrink-0 lg:block" />
            <div className="flex min-h-0 flex-1 items-center justify-center">
              <ExternalContoursEmptyState
                compact
                title={t("external_contours_page.empty_state.detail_title")}
                description={t("external_contours_page.empty_state.detail_description")}
              />
            </div>
          </div>
        )}
      </div>
    </>
  );
});