import React, { FC, useEffect } from 'react'
import { useSelector, useDispatch } from 'react-redux'
import { useHistory } from 'react-router-dom'

import { handleApiError } from '../api/errors'
import { fetchGroupMembers } from '../actions/groups'
import { getGroupMembers } from '../selectors/groups'
import { AppState, User, AppThunkDispatch } from '../types'

import MemberListItem from './member-list-item'

export interface Props {
    group: string
}

const MemberList: FC<Props> = ({ group }) => {
    const members = useSelector<AppState, User[]>(state => getGroupMembers(state, group))
    const dispatch = useDispatch<AppThunkDispatch>()
    const history = useHistory()

    useEffect(() => {
        try {
            dispatch(fetchGroupMembers(group))
        } catch (err) {
            handleApiError(err, dispatch, history)
        }
    }, [group])

    return (
        <div style={{ display: 'flex' }}>
            {members.map(member => <MemberListItem key={member.id} member={member} />)}
        </div>
    )
}

export default MemberList