selfprivacy.org.app/lib/logic/cubit/app_config/app_config_cubit.dart

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import 'dart:async';
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import 'package:bloc/bloc.dart';
import 'package:equatable/equatable.dart';
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import 'package:selfprivacy/logic/models/backblaze_credential.dart';
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import 'package:selfprivacy/logic/models/cloudflare_domain.dart';
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import 'package:selfprivacy/logic/models/server_details.dart';
import 'package:selfprivacy/logic/models/user.dart';
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import 'app_config_repository.dart';
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export 'package:provider/provider.dart';
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part 'app_config_state.dart';
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/// Initializing steps:
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///
/// The set phase.
/// 1.1. Hetzner key |setHetznerKey
/// 1.2. Cloudflare key |setCloudflareKey
/// 1.3. Backblaze Id + Key |setBackblazeKey
/// 1.4. Set Domain address |setDomain
/// 1.5. Set Root user name password |setRootUser
/// 1.6. Set Create server ans set DNS-Records |createServerAndSetDnsRecords
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/// (without start)
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///
/// The check phase.
///
/// 2.1. a. wait 60sec checkDnsAndStartServer |startServerIfDnsIsOkay
/// b. checkDns
/// c. if dns is okay start server
///
/// 2.2. a. wait 60sec |resetServerIfServerIsOkay
/// b. checkServer
/// c. if server is ok wait 30 sec
/// d. reset server
///
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/// 2.3. a. wait 60sec |oneMoreReset()
/// d. reset server
///
/// 2.4. a. wait 30sec |finishCheckIfServerIsOkay
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/// b. checkServer
/// c. if server is okay set that fully checked
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class AppConfigCubit extends Cubit<AppConfigState> {
AppConfigCubit() : super(InitialAppConfigState());
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final repository = AppConfigRepository();
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Future<void> load() async {
var state = await repository.load();
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if (state.progress < 6 || state.isFullyInitilized) {
emit(state);
} else if (state.progress == 6) {
startServerIfDnsIsOkay(state: state, isImmediate: true);
} else if (state.progress == 7) {
resetServerIfServerIsOkay(state: state, isImmediate: true);
} else if (state.progress == 8) {
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oneMoreReset(state: state, isImmediate: true);
} else if (state.progress == 9) {
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finishCheckIfServerIsOkay(state: state, isImmediate: true);
}
}
void startServerIfDnsIsOkay({
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AppConfigState? state,
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bool isImmediate = false,
}) async {
state = state ?? this.state;
final work = () async {
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emit(TimerState(dataState: state!, isLoading: true));
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var ip4 = state.hetznerServer!.ip4;
var domainName = state.cloudFlareDomain!.domainName;
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var isMatch = await repository.isDnsAddressesMatch(domainName, ip4);
if (isMatch) {
var server = await repository.startServer(
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state.hetznerServer!,
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);
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await repository.saveServerDetails(server);
await repository.saveIsServerStarted(true);
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emit(
state.copyWith(
isServerStarted: true,
isLoading: false,
hetznerServer: server,
),
);
resetServerIfServerIsOkay();
} else {
startServerIfDnsIsOkay();
}
};
if (isImmediate) {
work();
} else {
var pauseDuration = Duration(seconds: 60);
emit(TimerState(
dataState: state,
timerStart: DateTime.now(),
duration: pauseDuration,
isLoading: false,
));
timer = Timer(pauseDuration, work);
}
}
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void oneMoreReset({
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AppConfigState? state,
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bool isImmediate = false,
}) async {
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var dataState = state ?? this.state;
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var work = () async {
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emit(TimerState(dataState: dataState, isLoading: true));
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var isServerWorking = await repository.isHttpServerWorking();
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if (isServerWorking) {
var pauseDuration = Duration(seconds: 30);
emit(TimerState(
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dataState: dataState,
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timerStart: DateTime.now(),
isLoading: false,
duration: pauseDuration,
));
timer = Timer(pauseDuration, () async {
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var hetznerServerDetails = await repository.restart();
await repository.saveIsServerResetedSecondTime(true);
await repository.saveServerDetails(hetznerServerDetails);
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emit(
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dataState.copyWith(
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isServerResetedSecondTime: true,
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hetznerServer: hetznerServerDetails,
isLoading: false,
),
);
finishCheckIfServerIsOkay();
});
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} else {
oneMoreReset();
}
};
if (isImmediate) {
work();
} else {
var pauseDuration = Duration(seconds: 60);
emit(
TimerState(
dataState: dataState,
timerStart: DateTime.now(),
duration: pauseDuration,
isLoading: false,
),
);
timer = Timer(pauseDuration, work);
}
}
void resetServerIfServerIsOkay({
AppConfigState? state,
bool isImmediate = false,
}) async {
var dataState = state ?? this.state;
var work = () async {
emit(TimerState(dataState: dataState, isLoading: true));
var isServerWorking = await repository.isHttpServerWorking();
if (isServerWorking) {
var pauseDuration = Duration(seconds: 30);
emit(TimerState(
dataState: dataState,
timerStart: DateTime.now(),
isLoading: false,
duration: pauseDuration,
));
timer = Timer(pauseDuration, () async {
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var hetznerServerDetails = await repository.restart();
await repository.saveIsServerResetedFirstTime(true);
await repository.saveServerDetails(hetznerServerDetails);
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emit(
dataState.copyWith(
isServerResetedFirstTime: true,
hetznerServer: hetznerServerDetails,
isLoading: false,
),
);
oneMoreReset();
});
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} else {
resetServerIfServerIsOkay();
}
};
if (isImmediate) {
work();
} else {
var pauseDuration = Duration(seconds: 60);
emit(
TimerState(
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dataState: dataState,
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timerStart: DateTime.now(),
duration: pauseDuration,
isLoading: false,
),
);
timer = Timer(pauseDuration, work);
}
}
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Timer? timer;
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void finishCheckIfServerIsOkay({
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AppConfigState? state,
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bool isImmediate = false,
}) async {
state = state ?? this.state;
var work = () async {
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emit(TimerState(dataState: state!, isLoading: true));
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var isServerWorking = await repository.isHttpServerWorking();
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if (isServerWorking) {
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await repository.saveHasFinalChecked(true);
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emit(state.copyWith(
hasFinalChecked: true,
isLoading: false,
));
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} else {
finishCheckIfServerIsOkay();
}
};
if (isImmediate) {
work();
} else {
var pauseDuration = Duration(seconds: 60);
emit(
TimerState(
dataState: state,
timerStart: DateTime.now(),
duration: pauseDuration,
isLoading: false,
),
);
timer = Timer(pauseDuration, work);
}
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}
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void clearAppConfig() {
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closeTimer();
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repository.clearAppConfig();
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emit(InitialAppConfigState());
}
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Future<void> serverDelete() async {
closeTimer();
if (state.hetznerServer != null) {
await repository.deleteServer(state.cloudFlareDomain!);
}
await repository.deleteRecords();
emit(AppConfigState(
hetznerKey: state.hetznerKey,
cloudFlareKey: state.cloudFlareKey,
backblazeCredential: state.backblazeCredential,
cloudFlareDomain: state.cloudFlareDomain,
rootUser: state.rootUser,
hetznerServer: null,
isServerStarted: false,
isServerResetedFirstTime: false,
isServerResetedSecondTime: false,
hasFinalChecked: false,
isLoading: false,
error: null,
));
}
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void setHetznerKey(String hetznerKey) async {
await repository.saveHetznerKey(hetznerKey);
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emit(state.copyWith(hetznerKey: hetznerKey));
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}
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void setCloudflareKey(String cloudFlareKey) async {
await repository.saveCloudFlareKey(cloudFlareKey);
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emit(state.copyWith(cloudFlareKey: cloudFlareKey));
}
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void setBackblazeKey(String keyId, String applicationKey) async {
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var backblazeCredential = BackblazeCredential(
keyId: keyId,
applicationKey: applicationKey,
);
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await repository.saveBackblazeKey(backblazeCredential);
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emit(state.copyWith(backblazeCredential: backblazeCredential));
}
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void setDomain(CloudFlareDomain cloudFlareDomain) async {
await repository.saveDomain(cloudFlareDomain);
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emit(state.copyWith(cloudFlareDomain: cloudFlareDomain));
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}
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void setRootUser(User rootUser) async {
await repository.saveRootUser(rootUser);
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emit(state.copyWith(rootUser: rootUser));
}
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void createServerAndSetDnsRecords() async {
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AppConfigState _stateCopy = state;
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var onSuccess = (serverDetails) async {
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await repository.createDnsRecords(
serverDetails.ip4,
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state.cloudFlareDomain!,
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);
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emit(state.copyWith(
isLoading: false,
hetznerServer: serverDetails,
));
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startServerIfDnsIsOkay();
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};
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var onCancel = () => emit(state.copyWith(isLoading: false));
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try {
emit(state.copyWith(isLoading: true));
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await repository.createServer(
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state.rootUser!,
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state.cloudFlareDomain!.domainName,
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state.cloudFlareKey!,
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onCancel: onCancel,
onSuccess: onSuccess,
);
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} catch (e) {
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emit(_stateCopy);
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}
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}
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close() {
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closeTimer();
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return super.close();
}
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void closeTimer() {
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if (timer != null && timer!.isActive) {
timer!.cancel();
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}
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}
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}