import { FC, useState } from "react";
import Link from "next/link";
import { Disclosure, Transition } from "@headlessui/react";
import { ChevronRightIcon, PlusIcon } from "@heroicons/react/24/outline";
// components
import { CustomMenu } from "components/ui";
import { CreateUpdateIssueModal } from "components/issues";
import AddAsSubIssue from "components/project/issues/issue-detail/add-as-sub-issue";
// types
import { IIssue, UserAuth } from "types";

export interface SubIssueListProps {
  issues: IIssue[];
  projectId: string;
  workspaceSlug: string;
  parentIssue: IIssue;
  handleSubIssueRemove: (subIssueId: string) => void;
  userAuth: UserAuth;
}

export const SubIssueList: FC<SubIssueListProps> = ({
  issues = [],
  handleSubIssueRemove,
  parentIssue,
  workspaceSlug,
  projectId,
  userAuth,
}) => {
  // states
  const [isIssueModalActive, setIssueModalActive] = useState(false);
  const [isSubIssueModalActive, setSubIssueModalActive] = useState(false);
  const [preloadedData, setPreloadedData] = useState<Partial<IIssue> | null>(null);

  const openIssueModal = () => {
    setIssueModalActive(true);
  };

  const closeIssueModal = () => {
    setIssueModalActive(false);
  };

  const openSubIssueModal = () => {
    setSubIssueModalActive(true);
  };

  const closeSubIssueModal = () => {
    setSubIssueModalActive(false);
  };

  const isNotAllowed = userAuth.isGuest || userAuth.isViewer;

  return (
    <>
      <CreateUpdateIssueModal
        isOpen={isIssueModalActive}
        prePopulateData={{ ...preloadedData }}
        handleClose={closeIssueModal}
      />
      <AddAsSubIssue
        isOpen={isSubIssueModalActive}
        setIsOpen={setSubIssueModalActive}
        parent={parentIssue}
      />
      <Disclosure defaultOpen={true}>
        {({ open }) => (
          <>
            <div className="flex items-center justify-between">
              <Disclosure.Button className="flex items-center gap-1 rounded px-2 py-1 text-xs font-medium hover:bg-gray-100">
                <ChevronRightIcon className={`h-3 w-3 ${open ? "rotate-90" : ""}`} />
                Sub-issues <span className="ml-1 text-gray-600">{issues.length}</span>
              </Disclosure.Button>
              {open && !isNotAllowed ? (
                <div className="flex items-center">
                  <button
                    type="button"
                    className="flex items-center gap-1 rounded px-2 py-1 text-xs font-medium hover:bg-gray-100"
                    onClick={() => {
                      openIssueModal();
                      setPreloadedData({
                        parent: parentIssue.id,
                      });
                    }}
                  >
                    <PlusIcon className="h-3 w-3" />
                    Create new
                  </button>

                  <CustomMenu ellipsis>
                    <CustomMenu.MenuItem
                      onClick={() => {
                        setSubIssueModalActive(true);
                      }}
                    >
                      Add an existing issue
                    </CustomMenu.MenuItem>
                  </CustomMenu>
                </div>
              ) : null}
            </div>
            <Transition
              enter="transition duration-100 ease-out"
              enterFrom="transform scale-95 opacity-0"
              enterTo="transform scale-100 opacity-100"
              leave="transition duration-75 ease-out"
              leaveFrom="transform scale-100 opacity-100"
              leaveTo="transform scale-95 opacity-0"
            >
              <Disclosure.Panel className="mt-3 flex flex-col gap-y-1">
                {issues.map((issue) => (
                  <div
                    key={issue.id}
                    className="group flex items-center justify-between gap-2 rounded p-2 hover:bg-gray-100"
                  >
                    <Link href={`/${workspaceSlug}/projects/${projectId}/issues/${issue.id}`}>
                      <a className="flex items-center gap-2 rounded text-xs">
                        <span
                          className={`block h-1.5 w-1.5 rounded-full`}
                          style={{
                            backgroundColor: issue.state_detail.color,
                          }}
                        />
                        <span className="flex-shrink-0 text-gray-600">
                          {issue.project_detail.identifier}-{issue.sequence_id}
                        </span>
                        <span className="max-w-sm break-all font-medium">{issue.name}</span>
                      </a>
                    </Link>
                    {!isNotAllowed && (
                      <div className="opacity-0 group-hover:opacity-100">
                        <CustomMenu ellipsis>
                          <CustomMenu.MenuItem onClick={() => handleSubIssueRemove(issue.id)}>
                            Remove as sub-issue
                          </CustomMenu.MenuItem>
                        </CustomMenu>
                      </div>
                    )}
                  </div>
                ))}
              </Disclosure.Panel>
            </Transition>
          </>
        )}
      </Disclosure>
    </>
  );
};