import React, { useState } from "react";
import { useRouter } from "next/router";
import { observer } from "mobx-react-lite";
import { Dialog, Transition } from "@headlessui/react";
import { AlertTriangle } from "lucide-react";
// hooks
import { useEventTracker, usePage } from "hooks/store";
// ui
import { Button, TOAST_TYPE, setToast } from "@plane/ui";
// types
import { useProjectPages } from "hooks/store/use-project-page";
// constants
import { PAGE_DELETED } from "constants/event-tracker";

type TConfirmPageDeletionProps = {
  pageId: string;
  isOpen: boolean;
  onClose: () => void;
};

export const DeletePageModal: React.FC<TConfirmPageDeletionProps> = observer((props) => {
  const { pageId, isOpen, onClose } = props;

  // states
  const [isDeleting, setIsDeleting] = useState(false);
  // router
  const router = useRouter();
  const { workspaceSlug, projectId } = router.query;
  // store hooks
  const { deletePage } = useProjectPages();
  const { capturePageEvent } = useEventTracker();
  const pageStore = usePage(pageId);

  if (!pageStore) return null;

  const { name } = pageStore;

  const handleClose = () => {
    setIsDeleting(false);
    onClose();
  };

  const handleDelete = async () => {
    if (!pageId || !workspaceSlug || !projectId) return;

    setIsDeleting(true);

    // Delete Page will only delete the page from the archive page map, at this point only archived pages can be deleted
    await deletePage(workspaceSlug.toString(), projectId as string, pageId)
      .then(() => {
        capturePageEvent({
          eventName: PAGE_DELETED,
          payload: {
            ...pageStore,
            state: "SUCCESS",
          },
        });
        handleClose();
        setToast({
          type: TOAST_TYPE.SUCCESS,
          title: "Success!",
          message: "Page deleted successfully.",
        });
      })
      .catch(() => {
        capturePageEvent({
          eventName: PAGE_DELETED,
          payload: {
            ...pageStore,
            state: "FAILED",
          },
        });
        setToast({
          type: TOAST_TYPE.ERROR,
          title: "Error!",
          message: "Page could not be deleted. Please try again.",
        });
      })
      .finally(() => {
        setIsDeleting(false);
      });
  };

  return (
    <Transition.Root show={isOpen} as={React.Fragment}>
      <Dialog as="div" className="relative z-20" onClose={handleClose}>
        <Transition.Child
          as={React.Fragment}
          enter="ease-out duration-300"
          enterFrom="opacity-0"
          enterTo="opacity-100"
          leave="ease-in duration-200"
          leaveFrom="opacity-100"
          leaveTo="opacity-0"
        >
          <div className="fixed inset-0 bg-custom-backdrop transition-opacity" />
        </Transition.Child>

        <div className="fixed inset-0 z-20 overflow-y-auto">
          <div className="flex min-h-full items-end justify-center p-4 text-center sm:items-center sm:p-0">
            <Transition.Child
              as={React.Fragment}
              enter="ease-out duration-300"
              enterFrom="opacity-0 translate-y-4 sm:translate-y-0 sm:scale-95"
              enterTo="opacity-100 translate-y-0 sm:scale-100"
              leave="ease-in duration-200"
              leaveFrom="opacity-100 translate-y-0 sm:scale-100"
              leaveTo="opacity-0 translate-y-4 sm:translate-y-0 sm:scale-95"
            >
              <Dialog.Panel className="relative transform overflow-hidden rounded-lg bg-custom-background-100 text-left shadow-custom-shadow-md transition-all sm:my-8 sm:w-[40rem]">
                <div className="px-4 pb-4 pt-5 sm:p-6 sm:pb-4">
                  <div className="sm:flex sm:items-start">
                    <div className="mx-auto flex h-12 w-12 flex-shrink-0 items-center justify-center rounded-full bg-red-500/20 sm:mx-0 sm:h-10 sm:w-10">
                      <AlertTriangle className="h-6 w-6 text-red-600" aria-hidden="true" />
                    </div>
                    <div className="mt-3 text-center sm:ml-4 sm:mt-0 sm:text-left">
                      <Dialog.Title as="h3" className="text-lg font-medium leading-6 text-custom-text-100">
                        Delete Page
                      </Dialog.Title>
                      <div className="mt-2">
                        <p className="text-sm text-custom-text-200">
                          Are you sure you want to delete page-{" "}
                          <span className="break-words font-medium text-custom-text-100">{name}</span>? The Page will be
                          deleted permanently. This action cannot be undone.
                        </p>
                      </div>
                    </div>
                  </div>
                </div>
                <div className="flex justify-end gap-2 p-4 sm:px-6">
                  <Button variant="neutral-primary" size="sm" onClick={handleClose}>
                    Cancel
                  </Button>
                  <Button variant="danger" size="sm" tabIndex={1} onClick={handleDelete} loading={isDeleting}>
                    {isDeleting ? "Deleting..." : "Delete"}
                  </Button>
                </div>
              </Dialog.Panel>
            </Transition.Child>
          </div>
        </div>
      </Dialog>
    </Transition.Root>
  );
});