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import axios from 'axios'
import { refreshTokenApi } from '../../services/api/auth/refreshToken'
import { LOCAL_STORAGE_KEY, createSession, getSession, setAndSaveSession } from '../../services/auth/session'
import { AuthErrorResponse, SessionData, TokensResponse } from '../../types/auth'
export type AuthState = {
/** Check if user has session. */
isAuthenticated: boolean
/** Check if auth context is initialized. */
isInitialized: boolean
/** Session data. */
sessionData: SessionData | null
/** Error message register. */
registerError: string | null
/** Error message login. */
loginError: string | null
}
const initialState: AuthState = {
isAuthenticated: false,
isInitialized: false,
sessionData: null,
registerError: null,
loginError: null,
}
/**
* Register a user and return the tokens.
* @param credentials credentials from user
* @returns the tokens.
*/
export const registerApi = createAsyncThunk<
TokensResponse,
{ email: string; password: string },
{ rejectValue: AuthErrorResponse }
>('auth/register', async ({ email, password }, { rejectWithValue }) => {
try {
const response = await axios.post<TokensResponse>(`${process.env.NEXT_PUBLIC_API_BASE_URL}/auth/register`, {
email,
password,
})
const tokens = response.data
return tokens
} catch (error) {
if (axios.isAxiosError(error) && error.response) {
return rejectWithValue(error.response.data)
} else {
throw new Error('Register failed.')
}
}
})
/**
* Login a user and return the tokens.
* @param credentials credentials from user
* @returns the tokens.
*/
export const loginApi = createAsyncThunk<
TokensResponse,
{ email: string; password: string },
{ rejectValue: AuthErrorResponse }
>('auth/login', async ({ email, password }, { rejectWithValue }) => {
try {
const response = await axios.post<TokensResponse>(`${process.env.NEXT_PUBLIC_API_BASE_URL}/auth/login`, {
email,
password,
})
const tokens = response.data
return tokens
} catch (error) {
if (axios.isAxiosError(error) && error.response) {
return rejectWithValue(error.response.data)
} else {
throw new Error('Login failed.')
}
}
})
/**
* Get session data from local storage and update the access token if it has expired.
* @returns session data or null if no session data is found
*/
export const refreshToken = createAsyncThunk<SessionData | null, { bypassExpiryCheck: boolean }>(
'auth/getSessionData',
async ({ bypassExpiryCheck }) => {
const parsedSessionData = getSession()
// No session data found
if (!parsedSessionData) return null
// Return session data if access token is not expired
Iif (!bypassExpiryCheck) {
const sessionExpired = Date.now() > parsedSessionData.decodedAccessToken.exp * 1000
if (!sessionExpired) return parsedSessionData
}
// Update token
const tokens = await refreshTokenApi(parsedSessionData.refreshToken)
// Refresh token failed
Iif (tokens === null) {
console.error('Session expired and refresh token failed')
return null
}
// Update session when refresh token succeeded
const newSession = createSession(tokens)
setAndSaveSession(newSession)
return newSession
}
)
const authSlice = createSlice({
name: 'auth',
initialState,
reducers: {
login: (state, action: PayloadAction<SessionData>) => {
state.isInitialized = true
state.isAuthenticated = true
state.sessionData = action.payload
setAndSaveSession(action.payload)
},
logout: (state) => {
// Clear local storage
localStorage.removeItem(LOCAL_STORAGE_KEY)
// Clear state
state.isAuthenticated = false
state.sessionData = null
state.registerError = null
state.loginError = null
state.isInitialized = true
},
},
extraReducers: (builder) => {
builder
.addCase(refreshToken.pending, (state) => {
state.isInitialized = false
})
.addCase(refreshToken.fulfilled, (state, action) => {
state.isInitialized = true
state.loginError = null
state.registerError = null
state.isAuthenticated = action.payload !== null
state.sessionData = action.payload
})
.addCase(refreshToken.rejected, (state) => {
state.isInitialized = true
state.isAuthenticated = false
})
.addCase(loginApi.pending, (state) => {
state.isInitialized = false
})
.addCase(loginApi.fulfilled, (state, action) => {
state.isInitialized = true
state.loginError = null
state.registerError = null
state.isAuthenticated = true
state.sessionData = createSession(action.payload)
setAndSaveSession(state.sessionData)
})
.addCase(loginApi.rejected, (state, action) => {
if (action.payload?.message === 'Unauthorized' && action.payload?.statusCode === 401) {
state.loginError = 'Hoppla! Die von Ihnen eingegebene E-Mail oder das Passwort ist falsch.'
} else E{
state.loginError = 'Ein Fehler ist aufgetreten. Bitte versuchen Sie es später erneut.'
}
state.isInitialized = true
state.isAuthenticated = false
})
.addCase(registerApi.pending, (state) => {
state.isInitialized = false
})
.addCase(registerApi.fulfilled, (state, action) => {
state.isInitialized = true
state.registerError = null
state.loginError = null
state.isAuthenticated = true
state.sessionData = createSession(action.payload)
setAndSaveSession(state.sessionData)
})
.addCase(registerApi.rejected, (state, action) => {
if (action.payload?.message === 'Email is already taken.' && action.payload?.statusCode === 409) {
state.registerError = 'Hoppla! Die von Ihnen eingegebene E-Mail ist bereits mit einem Konto verknüpft.'
} else {
state.registerError = 'Ein Fehler ist aufgetreten. Bitte versuchen Sie es später erneut.'
}
state.isInitialized = true
state.isAuthenticated = false
})
},
})
export const authReducer = authSlice.reducer
export const { logout, login } = authSlice.actions
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