import { useDispatch } from 'react-redux';

import type { PubkeyType } from 'libsession_util_nodejs';
import { useCallback } from 'react';
import styled from 'styled-components';
import { openRightPanel } from '../../../state/ducks/conversations';

import {
  use05GroupMembers,
  useConversationUsername,
  useIsOutgoingRequest,
} from '../../../hooks/useParamSelector';
import {
  useIsMessageSelectionMode,
  useSelectedConversationKey,
  useSelectedIsLegacyGroup,
  useSelectedWeAreAdmin,
} from '../../../state/selectors/selectedConversation';
import { Flex } from '../../basic/Flex';
import { AvatarHeader, CallButton } from './ConversationHeaderItems';
import { SelectionOverlay } from './ConversationHeaderSelectionOverlay';
import { ConversationHeaderTitle } from './ConversationHeaderTitle';
import { localize } from '../../../localization/localeTools';
import { groupInfoActions } from '../../../state/ducks/metaGroups';
import { updateConfirmModal } from '../../../state/ducks/modalDialog';
import { setLeftOverlayMode } from '../../../state/ducks/section';
import { SessionButtonColor, SessionButton } from '../../basic/SessionButton';

export const ConversationHeaderWithDetails = () => {
  const isSelectionMode = useIsMessageSelectionMode();
  const selectedConvoKey = useSelectedConversationKey();
  const isOutgoingRequest = useIsOutgoingRequest(selectedConvoKey);

  const dispatch = useDispatch();

  if (!selectedConvoKey) {
    return null;
  }

  return (
    <div className="module-conversation-header">
      <Flex
        container={true}
        justifyContent={'flex-end'}
        alignItems="center"
        width="100%"
        flexGrow={1}
      >
        <ConversationHeaderTitle showSubtitle={!isOutgoingRequest} />

        {!isOutgoingRequest && !isSelectionMode && (
          <Flex
            container={true}
            flexDirection="row"
            alignItems="center"
            flexGrow={0}
            flexShrink={0}
          >
            <RecreateGroupButton />
            <CallButton />
            <AvatarHeader
              onAvatarClick={() => {
                dispatch(openRightPanel());
              }}
              pubkey={selectedConvoKey}
            />
          </Flex>
        )}
      </Flex>

      {isSelectionMode && <SelectionOverlay />}
    </div>
  );
};

const RecreateGroupContainer = styled.div`
  display: flex;
  justify-content: center;
  align-self: center;
  width: 100%;

  .session-button {
    padding-inline: var(--margins-3xl);
  }
`;

function useShowRecreateModal() {
  const dispatch = useDispatch();

  return useCallback(
    (name: string, members: Array<PubkeyType>) => {
      dispatch(
        updateConfirmModal({
          title: localize('recreateGroup').toString(),
          i18nMessage: { token: 'legacyGroupChatHistory' },
          okText: localize('theContinue').toString(),
          cancelText: localize('cancel').toString(),
          okTheme: SessionButtonColor.Danger,
          onClickOk: () => {
            dispatch(setLeftOverlayMode('closed-group'));
            dispatch(groupInfoActions.updateGroupCreationName({ name }));
            dispatch(groupInfoActions.setSelectedGroupMembers({ membersToSet: members }));
          },
          onClickClose: () => {
            dispatch(updateConfirmModal(null));
          },
        })
      );
    },
    [dispatch]
  );
}

function RecreateGroupButton() {
  const isLegacyGroup = useSelectedIsLegacyGroup();
  const selectedConvo = useSelectedConversationKey();

  const name = useConversationUsername(selectedConvo);
  const members = use05GroupMembers(selectedConvo);

  const weAreAdmin = useSelectedWeAreAdmin();

  const showRecreateGroupModal = useShowRecreateModal();

  if (!isLegacyGroup || !weAreAdmin) {
    return null;
  }

  return (
    <RecreateGroupContainer>
      <SessionButton
        buttonColor={SessionButtonColor.Primary}
        margin="var(--margins-sm)"
        onClick={() => {
          showRecreateGroupModal(name || 'Unknown group name', members);
        }}
      >
        {localize('recreateGroup').toString()}
      </SessionButton>
    </RecreateGroupContainer>
  );
}