import { Menu, Transition } from '@headlessui/react';
import { DotsVerticalIcon } from '@heroicons/react/solid';
import { Field, Form, Formik } from 'formik';
import React, { Fragment, useState } from 'react';
import { defineMessages, useIntl } from 'react-intl';
import ReactMarkdown from 'react-markdown';
import { Permission, useUser } from '../../../hooks/useUser';
import Button from '../../Common/Button';

const messages = defineMessages({
  description: 'Description',
  edit: 'Edit Description',
  cancel: 'Cancel',
  save: 'Save Changes',
  deleteissue: 'Delete Issue',
});

interface IssueDescriptionProps {
  issueId: number;
  description: string;
  onEdit: (newDescription: string) => void;
  onDelete: () => void;
}

const IssueDescription: React.FC<IssueDescriptionProps> = ({
  issueId,
  description,
  onEdit,
  onDelete,
}) => {
  const intl = useIntl();
  const { user, hasPermission } = useUser();
  const [isEditing, setIsEditing] = useState(false);

  return (
    <div className="relative">
      <div className="flex items-center justify-between">
        <div className="font-semibold text-gray-100 lg:text-xl">
          {intl.formatMessage(messages.description)}
        </div>
        {(hasPermission(Permission.MANAGE_ISSUES) || user?.id === issueId) && (
          <Menu as="div" className="relative inline-block text-left">
            {({ open }) => (
              <>
                <div>
                  <Menu.Button className="flex items-center text-gray-400 rounded-full hover:text-gray-200 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-offset-gray-100 focus:ring-indigo-500">
                    <span className="sr-only">Open options</span>
                    <DotsVerticalIcon className="w-5 h-5" aria-hidden="true" />
                  </Menu.Button>
                </div>

                <Transition
                  show={open}
                  as={Fragment}
                  enter="transition ease-out duration-100"
                  enterFrom="transform opacity-0 scale-95"
                  enterTo="transform opacity-100 scale-100"
                  leave="transition ease-in duration-75"
                  leaveFrom="transform opacity-100 scale-100"
                  leaveTo="transform opacity-0 scale-95"
                >
                  <Menu.Items
                    static
                    className="absolute right-0 w-56 mt-2 origin-top-right bg-gray-700 rounded-md shadow-lg ring-1 ring-black ring-opacity-5 focus:outline-none"
                  >
                    <div className="py-1">
                      <Menu.Item>
                        {({ active }) => (
                          <button
                            onClick={() => setIsEditing(true)}
                            className={`block w-full text-left px-4 py-2 text-sm ${
                              active
                                ? 'bg-gray-600 text-white'
                                : 'text-gray-100'
                            }`}
                          >
                            {intl.formatMessage(messages.edit)}
                          </button>
                        )}
                      </Menu.Item>

                      <Menu.Item>
                        {({ active }) => (
                          <button
                            onClick={() => onDelete()}
                            className={`block w-full text-left px-4 py-2 text-sm ${
                              active
                                ? 'bg-gray-600 text-white'
                                : 'text-gray-100'
                            }`}
                          >
                            {intl.formatMessage(messages.deleteissue)}
                          </button>
                        )}
                      </Menu.Item>
                    </div>
                  </Menu.Items>
                </Transition>
              </>
            )}
          </Menu>
        )}
      </div>
      {isEditing ? (
        <Formik
          initialValues={{ newMessage: description }}
          onSubmit={(values) => {
            onEdit(values.newMessage);
            setIsEditing(false);
          }}
        >
          {() => {
            return (
              <Form className="mt-4">
                <Field
                  id="newMessage"
                  name="newMessage"
                  as="textarea"
                  className="h-40"
                />
                <div className="flex justify-end mt-2">
                  <Button
                    buttonType="default"
                    className="mr-2"
                    type="button"
                    onClick={() => setIsEditing(false)}
                  >
                    <span>{intl.formatMessage(messages.cancel)}</span>
                  </Button>
                  <Button buttonType="primary">
                    <span>{intl.formatMessage(messages.save)}</span>
                  </Button>
                </div>
              </Form>
            );
          }}
        </Formik>
      ) : (
        <div className="mt-4 prose">
          <ReactMarkdown
            allowedElements={['p', 'img', 'strong', 'em']}
            skipHtml
          >
            {description}
          </ReactMarkdown>
        </div>
      )}
    </div>
  );
};

export default IssueDescription;