import { MouseEvent, ReactNode } from 'react';
import { contextMenu } from 'react-contexify';
import { createPortal } from 'react-dom';
import { useSelector } from 'react-redux';
import styled from 'styled-components';
import { getUnreadConversationRequests } from '../../state/selectors/conversations';
import { useIsSearching } from '../../state/selectors/search';
import { getHideMessageRequestBanner } from '../../state/selectors/userConfig';
import { SessionIcon, SessionIconSize, SessionIconType } from '../icon';
import { MessageRequestBannerContextMenu } from '../menu/MessageRequestBannerContextMenu';
import { Localizer } from '../basic/Localizer';

const StyledMessageRequestBanner = styled.div`
  height: 64px;
  width: 100%;
  max-width: 300px;
  display: flex;
  flex-direction: row;
  padding: 8px 12px; // adjusting for unread border always being active
  align-items: center;
  cursor: pointer;
  background: var(--conversation-tab-background-color);

  &:hover {
    background: var(--conversation-tab-background-hover-color);
  }
`;

const StyledMessageRequestBannerHeader = styled.span`
  font-weight: bold;
  font-size: var(--font-size-md);
  color: var(--text-primary-color);
  padding-left: var(--margins-xs);
  margin-inline-start: 12px;
  line-height: 18px;
  overflow-x: hidden;
  overflow-y: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
`;

const StyledUnreadCounter = styled.div`
  font-weight: bold;
  border-radius: var(--margins-sm);
  color: var(--unread-messages-alert-text-color);
  background-color: var(--unread-messages-alert-background-color);
  margin-left: var(--margins-sm);
  min-width: 20px;
  height: 20px;
  line-height: 20px;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  padding: var(--margins-xs);
`;

const StyledGridContainer = styled.div`
  display: flex;
  width: 36px;
  height: 36px;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  background-color: var(--text-secondary-color);
`;

export const CirclularIcon = (props: {
  iconType: SessionIconType;
  iconSize: SessionIconSize | number;
}) => {
  const { iconSize, iconType } = props;

  return (
    <StyledGridContainer>
      <SessionIcon
        iconType={iconType}
        iconSize={iconSize}
        iconColor="var(--background-primary-color)"
      />
    </StyledGridContainer>
  );
};

export const MessageRequestsBanner = (props: { handleOnClick: () => any }) => {
  const { handleOnClick } = props;
  const conversationRequestsUnread = useSelector(getUnreadConversationRequests).length;
  const hideRequestBanner = useSelector(getHideMessageRequestBanner);

  // when searching hide the message request banner
  const isCurrentlySearching = useIsSearching();

  if (!conversationRequestsUnread || hideRequestBanner || isCurrentlySearching) {
    return null;
  }

  const triggerId = 'msg-req-banner';

  const handleOnContextMenu = (e: any) => {
    contextMenu.show({
      id: triggerId,
      event: e,
    });
  };

  const openRequests = (e: MouseEvent<HTMLDivElement>) => {
    if (e.button === 0) {
      handleOnClick();
    }
  };

  return (
    <>
      <StyledMessageRequestBanner
        onContextMenu={handleOnContextMenu}
        onClick={openRequests}
        onMouseUp={e => {
          e.stopPropagation();
          e.preventDefault();
        }}
        data-testid="message-request-banner"
      >
        <CirclularIcon iconType="messageRequest" iconSize={22} />
        <StyledMessageRequestBannerHeader>
          <Localizer token="sessionMessageRequests" />
        </StyledMessageRequestBannerHeader>
        <StyledUnreadCounter>
          <div>{conversationRequestsUnread || 0}</div>
        </StyledUnreadCounter>
      </StyledMessageRequestBanner>
      <Portal>
        <MessageRequestBannerContextMenu triggerId={triggerId} />
      </Portal>
    </>
  );
};

const Portal = ({ children }: { children: ReactNode }) => {
  return createPortal(children, document.querySelector('.inbox.index') as Element);
};