import React, { useEffect, useState } from "react";

import { useRouter } from "next/router";

import { mutate } from "swr";
// mobx
import { observer } from "mobx-react-lite";
import { useMobxStore } from "lib/mobx/store-provider";
// headless ui
import { Dialog, Transition } from "@headlessui/react";
// hooks
import useUser from "hooks/use-user";
// components
import { DeleteIssueModal, FullScreenPeekView, SidePeekView } from "components/issues";
// types
import { IIssue } from "types";
// fetch-keys
import { PROJECT_ISSUES_ACTIVITY } from "constants/fetch-keys";

type Props = {
  handleMutation?: () => void;
  projectId: string;
  readOnly: boolean;
  workspaceSlug: string;
};

export type TPeekOverviewModes = "side" | "modal" | "full";

export const IssuePeekOverview: React.FC<Props> = observer(({ handleMutation, projectId, readOnly, workspaceSlug }) => {
  const [isSidePeekOpen, setIsSidePeekOpen] = useState(false);
  const [isModalPeekOpen, setIsModalPeekOpen] = useState(false);
  const [peekOverviewMode, setPeekOverviewMode] = useState<TPeekOverviewModes>("side");
  const [deleteIssueModal, setDeleteIssueModal] = useState(false);

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

  const { issueDetail: issueDetailStore } = useMobxStore();
  const { deleteIssue, fetchIssueDetails, issues, updateIssue } = issueDetailStore;

  const issue = issues[peekIssue?.toString() ?? ""];

  const { user } = useUser();

  const handleClose = () => {
    const { query } = router;
    delete query.peekIssue;

    router.push({
      pathname: router.pathname,
      query: { ...query },
    });
  };

  const handleUpdateIssue = async (formData: Partial<IIssue>) => {
    if (!issue || !user) return;

    await updateIssue(workspaceSlug, projectId, issue.id, formData, user);
    mutate(PROJECT_ISSUES_ACTIVITY(issue.id));
    if (handleMutation) handleMutation();
  };

  const handleDeleteIssue = async () => {
    if (!issue || !user) return;

    await deleteIssue(workspaceSlug, projectId, issue.id, user);
    if (handleMutation) handleMutation();

    handleClose();
  };

  useEffect(() => {
    if (!peekIssue) return;

    fetchIssueDetails(workspaceSlug, projectId, peekIssue.toString());
  }, [fetchIssueDetails, peekIssue, projectId, workspaceSlug]);

  useEffect(() => {
    if (peekIssue) {
      if (peekOverviewMode === "side") {
        setIsSidePeekOpen(true);
        setIsModalPeekOpen(false);
      } else {
        setIsModalPeekOpen(true);
        setIsSidePeekOpen(false);
      }
    } else {
      setIsSidePeekOpen(false);
      setIsModalPeekOpen(false);
    }
  }, [peekIssue, peekOverviewMode]);

  return (
    <>
      <DeleteIssueModal
        isOpen={deleteIssueModal}
        handleClose={() => setDeleteIssueModal(false)}
        data={issue ? { ...issue } : null}
        onSubmit={handleDeleteIssue}
        user={user}
      />
      <Transition.Root appear show={isSidePeekOpen} as={React.Fragment}>
        <Dialog as="div" className="relative z-20" onClose={handleClose}>
          <div className="fixed inset-0 z-20 h-full w-full overflow-y-auto">
            <Transition.Child
              as={React.Fragment}
              enter="transition-transform duration-300"
              enterFrom="translate-x-full"
              enterTo="translate-x-0"
              leave="transition-transform duration-200"
              leaveFrom="translate-x-0"
              leaveTo="translate-x-full"
            >
              <Dialog.Panel className="fixed z-20 bg-custom-background-100 top-0 right-0 h-full w-1/2 shadow-custom-shadow-md">
                <SidePeekView
                  handleClose={handleClose}
                  handleDeleteIssue={() => setDeleteIssueModal(true)}
                  handleUpdateIssue={handleUpdateIssue}
                  issue={issue}
                  mode={peekOverviewMode}
                  readOnly={readOnly}
                  setMode={(mode) => setPeekOverviewMode(mode)}
                  workspaceSlug={workspaceSlug}
                />
              </Dialog.Panel>
            </Transition.Child>
          </div>
        </Dialog>
      </Transition.Root>
      <Transition.Root appear show={isModalPeekOpen} 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 bg-opacity-50 transition-opacity" />
          </Transition.Child>
          <div className="fixed inset-0 z-20 h-full w-full overflow-y-auto">
            <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"
            >
              <Dialog.Panel>
                <div
                  className={`fixed z-20 bg-custom-background-100 top-1/2 left-1/2 -translate-x-1/2 -translate-y-1/2 rounded-lg shadow-custom-shadow-xl transition-all duration-300 ${
                    peekOverviewMode === "modal" ? "h-[70%] w-3/5" : "h-[95%] w-[95%]"
                  }`}
                >
                  {peekOverviewMode === "modal" && (
                    <SidePeekView
                      handleClose={handleClose}
                      handleDeleteIssue={() => setDeleteIssueModal(true)}
                      handleUpdateIssue={handleUpdateIssue}
                      issue={issue}
                      mode={peekOverviewMode}
                      readOnly={readOnly}
                      setMode={(mode) => setPeekOverviewMode(mode)}
                      workspaceSlug={workspaceSlug}
                    />
                  )}
                  {peekOverviewMode === "full" && (
                    <FullScreenPeekView
                      handleClose={handleClose}
                      handleDeleteIssue={() => setDeleteIssueModal(true)}
                      handleUpdateIssue={handleUpdateIssue}
                      issue={issue}
                      mode={peekOverviewMode}
                      readOnly={readOnly}
                      setMode={(mode) => setPeekOverviewMode(mode)}
                      workspaceSlug={workspaceSlug}
                    />
                  )}
                </div>
              </Dialog.Panel>
            </Transition.Child>
          </div>
        </Dialog>
      </Transition.Root>
    </>
  );
});