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/**
* TrackerMap
* Copyright (C) 2021-2022 Iván Ávalos <avalos@disroot.org>, Henoch Ojeda <imhenoch@protonmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package mx.trackermap.TrackerMap.controllers
import kotlinx.coroutines.DelicateCoroutinesApi
import kotlinx.coroutines.GlobalScope
import kotlinx.coroutines.flow.MutableStateFlow
import kotlinx.coroutines.launch
import kotlinx.serialization.json.JsonPrimitive
import mx.trackermap.TrackerMap.Injectable
import mx.trackermap.TrackerMap.client.apis.SessionApi
import mx.trackermap.TrackerMap.client.apis.UsersApi
import mx.trackermap.TrackerMap.client.models.SessionBody
import mx.trackermap.TrackerMap.client.models.User
@DelicateCoroutinesApi
class SessionController(
private val sessionApi: SessionApi,
private val usersApi: UsersApi
): Injectable {
sealed class LoginState {
object Nothing: LoginState()
object Loading: LoginState()
object UrlMissing: LoginState()
object EmailMissing : LoginState()
object PasswordMissing : LoginState()
object Failure : LoginState()
object Success : LoginState()
object SignOut : LoginState()
}
val loginStateFlow = MutableStateFlow<LoginState?>(null)
val userFlow = MutableStateFlow<User?>(null)
fun getSession() {
loginStateFlow.value = LoginState.Loading
GlobalScope.launch {
try {
userFlow.value = sessionApi.sessionGet()
loginStateFlow.value = LoginState.Success
} catch (e: Exception) {
loginStateFlow.value = LoginState.Failure
}
}
}
fun restoreSession() {
loginStateFlow.value = LoginState.Loading
GlobalScope.launch {
try {
userFlow.value = sessionApi.sessionGet()
loginStateFlow.value = LoginState.Success
} catch (e: Exception) {
e.printStackTrace()
loginStateFlow.value = LoginState.Nothing
}
}
}
fun login(body: SessionBody) {
val url = body.url.trim()
val email = body.email.trim()
val password = body.password.trim()
val token = body.fcmToken
if (url.isEmpty()) {
loginStateFlow.value = LoginState.UrlMissing
return
}
if (email.isEmpty()) {
loginStateFlow.value = LoginState.EmailMissing
return
}
if (password.isEmpty()) {
loginStateFlow.value = LoginState.PasswordMissing
return
}
loginStateFlow.value = LoginState.Loading
GlobalScope.launch {
try {
sessionApi.sessionManager.baseUrl = url
val session = sessionApi.sessionPost(email, password)
userFlow.value = session
token?.let { registerFcmToken(it) }
loginStateFlow.value = LoginState.Success
} catch (e: Exception) {
e.printStackTrace()
loginStateFlow.value = LoginState.Failure
}
}
}
private suspend fun registerFcmToken(token: String) {
print("Register FCM token: $token\n")
try {
userFlow.value?.let { user ->
val attributes = user.attributes.toMutableMap()
attributes["notificationTokens"]?.content?.let { tokens ->
if (tokens == "null" || !tokens.contains(token)) {
if (tokens == "null") {
attributes["notificationTokens"] = JsonPrimitive(token)
} else if (!tokens.contains(token)) {
attributes["notificationTokens"] = JsonPrimitive("$tokens,$token")
}
}
} ?: run {
attributes["notificationTokens"] = JsonPrimitive(token)
}
usersApi.usersIdPut(user.copy(
attributes = attributes
), user.id!!)
}
} catch (e: Exception) {
e.printStackTrace()
}
}
private suspend fun unregisterFcmToken(token: String) {
print("Unregister FCM token: $token\n")
try {
sessionApi.sessionGet().let { user ->
val attributes = user.attributes.toMutableMap()
attributes["notificationTokens"]?.content?.let { tokens ->
if (tokens.contains("$token,")) {
attributes["notificationTokens"] =
JsonPrimitive(token.replace("$token,", ""))
} else if (tokens.contains(token)) {
attributes["notificationTokens"] =
JsonPrimitive(token.replace(token, ""))
}
usersApi.usersIdPut(user.copy(
attributes = attributes
), user.id!!)
}
}
} catch (e: Exception) {
e.printStackTrace()
}
}
fun logout(token: String?) {
GlobalScope.launch {
loginStateFlow.value = LoginState.Loading
token?.let { unregisterFcmToken(it) }
sessionApi.sessionDelete()
loginStateFlow.value = LoginState.SignOut
}
}
}
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