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import {
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Button,
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Grid,
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List,
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ListItem,
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ListItemText,
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Paper,
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} from '@mui/material'
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import {Fragment, useEffect, useState} from 'react'
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import { useDispatch, useSelector } from 'react-redux'
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import { RootState } from '../redux/store'
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import 'react-quill/dist/quill.snow.css'
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import ContentLoading from "../Reusables/ContentLoading"
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import {UserDto} from "../../swagger/data-contracts"
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import UserDetail from "./UserDetail"
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import {Link as RouterLink} from "react-router-dom"
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import AddIcon from '@mui/icons-material/Add';
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import {fetchUsers} from "./userDetailThunks"
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import {
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clear,
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consumeError,
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setLoading,
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setSelectedUser
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} from "./userDetailSlice"
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import ShowErrorIfPresent from "../Reusables/ShowErrorIfPresent"
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import {number} from "yup"
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const apiError =
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'Error while fetching data from the server, please try again later.'
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const Administration = () => {
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// Items, loading and error from api
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const users = useSelector((state: RootState) => state.usersDetail.users)
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const loading = useSelector((state: RootState) => state.usersDetail.loading)
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const apiError = useSelector((state: RootState) => state.usersDetail.error)
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const selectedUser = useSelector((state: RootState) => state.usersDetail.selectedUser)
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const [selectedUserId, setSelectedUserId] = useState<number | undefined>(undefined)
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// Local state to display any error relevant error
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const [displayError, setDisplayError] = useState<string | undefined>(
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undefined
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)
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const dispatch = useDispatch()
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const isAdmin = useSelector(
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(state: RootState) => state.user.roles.includes("ROLE_ADMIN")
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)
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const handleClick = (userID: number) => {
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console.log("clicked "+ userID)
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if (users) {
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setSelectedUserId(userID)
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dispatch(setSelectedUser(users.at(userID)))
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console.log("after " + selectedUser)
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}
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}
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// Use effect to read the error and consume it
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useEffect(() => {
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if (users.length > 0) {
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setSelectedUserId(0)
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dispatch(setSelectedUser(users.at(0)))
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console.log("selected id: " + selectedUser)
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}
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}, [users])
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// Use effect to read the error and consume it
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useEffect(() => {
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if (apiError) {
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setDisplayError(apiError)
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dispatch(consumeError())
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}
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}, [apiError, dispatch])
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// Fetch the item from the api after mounting the component
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useEffect(() => {
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console.log("before fetch")
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dispatch(fetchUsers())
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console.log("after fetch: " + loading)
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return () => {
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// Invalidate the state when unmounting so that the old list is not rerendered when the user returns to the page
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dispatch(setLoading())
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console.log("set loading: " + loading)
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}
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}, [dispatch])
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const childClosed = () => {
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dispatch(clear())
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dispatch(fetchUsers())
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setSelectedUserId(0)
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dispatch(setSelectedUser(users.at(0)))
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}
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return (
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<Fragment>
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<ShowErrorIfPresent err={displayError} />
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{loading && !apiError ? <ContentLoading /> : null}
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{!loading && users && isAdmin ? (
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<Grid container justifyContent="space-around">
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<Grid item xs={6} md={3} sx={{ px: 2 }}>
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<Paper style={{ minHeight: '80vh', display:'flex', justifyContent: 'space-between', flexDirection:'column'}} variant="outlined">
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<List>
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{users.map((user, id) => (
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<ListItem
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key={id}
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className={
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selectedUserId === id
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? 'clicked-user'
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: ''
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}
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onClick={() => handleClick(id)}
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>
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<ListItemText primary={user.name} />
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</ListItem>
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))}
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</List>
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<Button startIcon={<AddIcon />}
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variant="contained"
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component={RouterLink}
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to="/register"
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color="primary"
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sx={{ m: 2 }} >
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Add user
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</Button>
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</Paper>
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</Grid>
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<Grid item md={9} xs={6}>
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{selectedUserId !== undefined ?
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<UserDetail user={selectedUser as UserDto} onClose={childClosed} />
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: null }
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</Grid>
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</Grid>
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) : null}
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</Fragment>
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)
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}
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export default Administration
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