// @flow
import { observer } from "mobx-react";
import { DocumentIcon } from "outline-icons";
import * as React from "react";
import { useTranslation } from "react-i18next";
import { MenuButton, useMenuState } from "reakit/Menu";
import styled from "styled-components";
import Document from "models/Document";
import Button from "components/Button";
import ContextMenu from "components/ContextMenu";
import MenuItem from "components/ContextMenu/MenuItem";
import useStores from "hooks/useStores";

type Props = {|
  document: Document,
|};

function TemplatesMenu({ document }: Props) {
  const menu = useMenuState({ modal: true });
  const { documents } = useStores();
  const { t } = useTranslation();
  const templates = documents.templatesInCollection(document.collectionId);

  if (!templates.length) {
    return null;
  }

  return (
    <>
      <MenuButton {...menu}>
        {(props) => (
          <Button {...props} disclosure neutral>
            {t("Templates")}
          </Button>
        )}
      </MenuButton>
      <ContextMenu {...menu} aria-label={t("Templates")}>
        {templates.map((template) => (
          <MenuItem
            key={template.id}
            onClick={() => document.updateFromTemplate(template)}
          >
            <DocumentIcon />
            <div>
              <strong>{template.titleWithDefault}</strong>
              <br />
              <Author>
                {t("By {{ author }}", { author: template.createdBy.name })}
              </Author>
            </div>
          </MenuItem>
        ))}
      </ContextMenu>
    </>
  );
}

const Author = styled.div`
  font-size: 13px;
`;

export default observer(TemplatesMenu);