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Commit d9db5e23 authored by vjrj's avatar vjrj
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More work with WOT

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lib/data/models/contact.dart
+ 10
− 3
View file @ d9db5e23
......@@ -38,6 +38,7 @@ class Contact extends Equatable implements IsJsonSerializable<Contact> {
this.status,
this.isMember,
this.createdOn,
this.index,
this.expireOn})
:
// ensure that Contact does not have v1 checksums
......@@ -91,6 +92,7 @@ class Contact extends Equatable implements IsJsonSerializable<Contact> {
this.status,
this.isMember,
this.createdOn,
this.index,
this.expireOn});
factory Contact.withPubKey(
......@@ -108,6 +110,7 @@ class Contact extends Equatable implements IsJsonSerializable<Contact> {
List<Map<String, String>>? socials,
List<Cert>? certsReceived,
List<Cert>? certsIssued,
int? index,
DateTime? time}) {
return Contact._(
nick: nick,
......@@ -125,7 +128,8 @@ class Contact extends Equatable implements IsJsonSerializable<Contact> {
socials: socials,
time: time,
certsReceived: certsReceived,
certsIssued: certsIssued);
certsIssued: certsIssued,
index: index);
}
factory Contact.empty() {
......@@ -155,7 +159,8 @@ class Contact extends Equatable implements IsJsonSerializable<Contact> {
IdentityStatus? status,
bool? isMember,
int? createdOn,
int? expireOn}) {
int? expireOn,
int? index}) {
return Contact._(
nick: nick,
pubKey: v1pubkeyFromAddress(address),
......@@ -176,7 +181,8 @@ class Contact extends Equatable implements IsJsonSerializable<Contact> {
status: status,
isMember: isMember,
createdOn: createdOn,
expireOn: expireOn);
expireOn: expireOn,
index: index);
}
final String? nick;
......@@ -202,6 +208,7 @@ class Contact extends Equatable implements IsJsonSerializable<Contact> {
final bool? isMember;
final int? createdOn;
final int? expireOn;
final int? index;
Contact merge(Contact c) {
return Contact(
......
lib/data/models/contact.g.dart
+ 13
− 0
View file @ d9db5e23
......@@ -45,6 +45,8 @@ abstract class _$ContactCWProxy {
Contact createdOn(int? createdOn);
Contact index(int? index);
Contact expireOn(int? expireOn);
/// This function **does support** nullification of nullable fields. All `null` values passed to `non-nullable` fields will be ignored. You can also use `Contact(...).copyWith.fieldName(...)` to override fields one at a time with nullification support.
......@@ -73,6 +75,7 @@ abstract class _$ContactCWProxy {
IdentityStatus? status,
bool? isMember,
int? createdOn,
int? index,
int? expireOn,
});
}
......@@ -143,6 +146,9 @@ class _$ContactCWProxyImpl implements _$ContactCWProxy {
@override
Contact createdOn(int? createdOn) => this(createdOn: createdOn);
@override
Contact index(int? index) => this(index: index);
@override
Contact expireOn(int? expireOn) => this(expireOn: expireOn);
......@@ -174,6 +180,7 @@ class _$ContactCWProxyImpl implements _$ContactCWProxy {
Object? status = const $CopyWithPlaceholder(),
Object? isMember = const $CopyWithPlaceholder(),
Object? createdOn = const $CopyWithPlaceholder(),
Object? index = const $CopyWithPlaceholder(),
Object? expireOn = const $CopyWithPlaceholder(),
}) {
return Contact(
......@@ -253,6 +260,10 @@ class _$ContactCWProxyImpl implements _$ContactCWProxy {
? _value.createdOn
// ignore: cast_nullable_to_non_nullable
: createdOn as int?,
index: index == const $CopyWithPlaceholder()
? _value.index
// ignore: cast_nullable_to_non_nullable
: index as int?,
expireOn: expireOn == const $CopyWithPlaceholder()
? _value.expireOn
// ignore: cast_nullable_to_non_nullable
......@@ -300,6 +311,7 @@ Contact _$ContactFromJson(Map<String, dynamic> json) => Contact(
status: $enumDecodeNullable(_$IdentityStatusEnumMap, json['status']),
isMember: json['isMember'] as bool?,
createdOn: (json['createdOn'] as num?)?.toInt(),
index: (json['index'] as num?)?.toInt(),
expireOn: (json['expireOn'] as num?)?.toInt(),
);
......@@ -324,6 +336,7 @@ Map<String, dynamic> _$ContactToJson(Contact instance) => <String, dynamic>{
'isMember': instance.isMember,
'createdOn': instance.createdOn,
'expireOn': instance.expireOn,
'index': instance.index,
};
const _$IdentityStatusEnumMap = {
......
lib/data/models/contact_wot_info.dart 0 → 100644
+ 26
− 0
View file @ d9db5e23
import 'contact.dart';
import 'identity_status.dart';
class ContactWotInfo {
ContactWotInfo({
required this.me,
required this.you,
});
final Contact me;
final Contact you;
bool? canCert;
bool? canCreateIdty;
bool get isMe {
return me.pubKey == you.pubKey;
}
bool get isMember {
return you.status == IdentityStatus.MEMBER;
}
bool get iAmMember {
return me.status == IdentityStatus.MEMBER;
}
}
lib/g1/duniter_indexer_helper.dart
+ 4
− 4
View file @ d9db5e23
......@@ -169,6 +169,7 @@ Contact _contactFromIdentity(dynamic identity) {
status: parseIdentityStatus(
((identity as dynamic).status as dynamic)?.name as String?),
isMember: (identity as dynamic).isMember as bool?,
index: (identity as dynamic).index as int?,
createdOn: ((identity as dynamic).account as dynamic).createdOn as int?,
expireOn: (identity as dynamic).expireOn as int?,
);
......@@ -194,12 +195,10 @@ Cert _buildCert(dynamic cert) {
);
}
Future<Contact> getIdentity({required String address}) async {
Future<Contact?> getIdentity({required String address}) async {
final List<Contact> contacts =
await getIdentities(addresses: <String>[address]);
return contacts.isNotEmpty
? contacts.first
: Contact.withAddress(address: address);
return contacts.isNotEmpty ? contacts.first : null;
}
Contact _contactFromAccount(dynamic account) {
......@@ -233,6 +232,7 @@ Contact _contactFromAccount(dynamic account) {
isMember: (identity as dynamic)?.isMember as bool?,
createdOn: (account as dynamic).createdOn as int?,
expireOn: (identity as dynamic).expireOn as int?,
index: (identity as dynamic).index as int?,
certsIssued: certIssued,
certsReceived: certReceived,
)
......
lib/g1/g1_v2_helper_others.dart
+ 53
− 0
View file @ d9db5e23
......@@ -19,12 +19,15 @@ import 'package:polkadart_keyring/polkadart_keyring.dart';
import 'package:ss58/ss58.dart';
import 'package:tuple/tuple.dart' as tp;
import '../data/models/contact.dart';
import '../data/models/node.dart';
import '../data/models/node_manager.dart';
import '../data/models/node_type.dart';
import '../generated/gdev/gdev.dart';
import '../generated/gdev/types/frame_system/account_info.dart';
import '../generated/gdev/types/gdev_runtime/runtime_call.dart';
import '../generated/gdev/types/pallet_certification/types/idty_cert_meta.dart';
import '../generated/gdev/types/pallet_identity/types/idty_value.dart';
import '../generated/gdev/types/primitive_types/h256.dart';
import '../generated/gdev/types/sp_runtime/multiaddress/multi_address.dart';
import '../shared_prefs_helper.dart';
......@@ -210,6 +213,56 @@ String formatPubkey(String value) {
}
*/
Future<T> executeOnNodes<T>(
Future<T> Function(Node node, Provider provider, Gdev polkadot) operation,
{Duration timeout = defPolkadotTimeout}) async {
final List<Node> nodes = NodeManager().getBestNodes(NodeType.endpoint);
nodes.shuffle();
for (final Node node in nodes) {
try {
final Provider provider = Provider.fromUri(parseNodeUrl(node.url));
final Gdev polkadot = Gdev(provider);
final T result =
await operation(node, provider, polkadot).timeout(timeout);
return result; // If the operation is successful, return the result
} catch (e, stacktrace) {
NodeManager().increaseNodeErrors(NodeType.endpoint, node);
loggerDev('Error in node ${node.url}', error: e, stackTrace: stacktrace);
}
}
throw Exception(
'All nodes failed to execute the operation'); // If all nodes fail, throw an exception
}
Future<IdtyValue?> polkadotIdentity(Contact contact) async {
return executeOnNodes<IdtyValue?>(
(Node node, Provider provider, Gdev gdev) async {
if (contact.index == null) {
return null;
}
return gdev.query.identity.identities(contact.index!);
});
}
Future<int> polkadotCurrentBlock() async {
return executeOnNodes<int>((Node node, Provider provider, Gdev gdev) async {
return gdev.query.system.number();
});
}
Future<IdtyCertMeta?> polkadotIdtyCertMeta(Contact contact) async {
return executeOnNodes<IdtyCertMeta?>(
(Node node, Provider provider, Gdev gdev) async {
if (contact.index == null) {
return null;
}
return gdev.query.certification.storageIdtyCertMeta(contact.index!);
});
}
Future<BigInt?> getBalanceV2(
{required String address, Duration timeout = defPolkadotTimeout}) async {
final List<Node> nodes = NodeManager().getBestNodes(NodeType.endpoint);
......
lib/g1/wot_actions.dart
+ 190
− 152
View file @ d9db5e23
......@@ -14,6 +14,8 @@ import 'package:polkadart/scale_codec.dart';
import 'package:polkadart_keyring/polkadart_keyring.dart';
import 'package:ss58/ss58.dart';
import '../data/models/contact.dart';
import '../data/models/contact_wot_info.dart';
import '../data/models/identity_status.dart';
import '../data/models/menu_action.dart';
import '../data/models/node.dart';
......@@ -27,98 +29,106 @@ import '../ui/logger.dart';
import 'g1_helper.dart';
import 'g1_v2_helper_others.dart';
Future<String> createIdentity({Duration timeout = defPolkadotTimeout}) async {
final List<Node> nodes = NodeManager().getBestNodes(NodeType.endpoint);
nodes.shuffle();
Future<String> requestDistanceEvaluation(int idtyIndex,
{Duration timeout = defPolkadotTimeout}) async {
final CesiumWallet walletV1 = await SharedPreferencesHelper().getWallet();
final KeyPair wallet = KeyPair.ed25519.fromSeed(walletV1.seed);
final Completer<String> result = Completer<String>();
for (final Node node in nodes) {
try {
final Provider provider = Provider.fromUri(parseNodeUrl(node.url));
final Gdev polkadot = Gdev(provider);
return executeOnNodes<String>(
(Node node, Provider provider, Gdev gdev) async {
// distance rule has been evaluated positively locally on web of trust at block storage.distance.evaluationBlock()
// TODO(vjrj): Implement this
// gdev.query.distance.evaluationBlock();
final RuntimeCall call =
gdev.tx.distance.requestDistanceEvaluationFor(target: idtyIndex);
return signAndSend(gdev, wallet, call, provider, result, timeout);
});
}
final RuntimeVersion runtimeVersion =
await polkadot.rpc.state.getRuntimeVersion();
final int currentBlockNumber = (await polkadot.query.system.number()) - 1;
final H256 currentBlockHash =
await polkadot.query.system.blockHash(currentBlockNumber);
final int nonce =
await polkadot.rpc.system.accountNextIndex(wallet.address);
Future<String> signAndSend(Gdev polkadot, KeyPair wallet, RuntimeCall call,
Provider provider, Completer<String> result, Duration timeout) async {
final RuntimeVersion runtimeVersion =
await polkadot.rpc.state.getRuntimeVersion();
final int currentBlockNumber = (await polkadot.query.system.number()) - 1;
final H256 currentBlockHash =
await polkadot.query.system.blockHash(currentBlockNumber);
final int nonce = await polkadot.rpc.system.accountNextIndex(wallet.address);
final H256 genesisHash = await polkadot.query.system.blockHash(0);
final H256 genesisHash = await polkadot.query.system.blockHash(0);
final RuntimeCall createIdentityCall =
polkadot.tx.identity.createIdentity(
ownerKey: Address.decode(wallet.address).pubkey,
);
final Uint8List encodedCall = call.encode();
final Uint8List encodedCall = createIdentityCall.encode();
final Uint8List payload = SigningPayload(
method: encodedCall,
specVersion: runtimeVersion.specVersion,
transactionVersion: runtimeVersion.transactionVersion,
genesisHash: encodeHex(genesisHash),
blockHash: encodeHex(currentBlockHash),
blockNumber: currentBlockNumber,
eraPeriod: 64,
nonce: nonce,
tip: 0)
.encode(polkadot.registry);
final Uint8List payload = SigningPayload(
method: encodedCall,
specVersion: runtimeVersion.specVersion,
transactionVersion: runtimeVersion.transactionVersion,
genesisHash: encodeHex(genesisHash),
blockHash: encodeHex(currentBlockHash),
blockNumber: currentBlockNumber,
eraPeriod: 64,
nonce: nonce,
tip: 0)
.encode(polkadot.registry);
final Uint8List signature = wallet.sign(payload);
final Uint8List extrinsic = ExtrinsicPayload(
signer: wallet.bytes(),
method: encodedCall,
signature: signature,
eraPeriod: 64,
blockNumber: currentBlockNumber,
nonce: nonce,
tip: 0)
.encode(polkadot.registry, SignatureType.ed25519);
final Uint8List signature = wallet.sign(payload);
final Uint8List extrinsic = ExtrinsicPayload(
signer: wallet.bytes(),
method: encodedCall,
signature: signature,
eraPeriod: 64,
blockNumber: currentBlockNumber,
nonce: nonce,
tip: 0)
.encode(polkadot.registry, SignatureType.ed25519);
final AuthorApi<Provider> author = AuthorApi<Provider>(provider);
final AuthorApi<Provider> author = AuthorApi<Provider>(provider);
await author.submitAndWatchExtrinsic(extrinsic, (ExtrinsicStatus status) {
switch (status.type) {
case 'finalized':
result.complete('');
break;
case 'dropped':
result.complete(tr('op_dropped'));
break;
case 'invalid':
result.complete(tr('op_invalid'));
break;
case 'usurped':
result.complete(tr('op_usurped'));
break;
case 'future':
break;
case 'ready':
break;
case 'inBlock':
break;
case 'broadcast':
break;
default:
result.complete('Unexpected transaction status: ${status.type}.');
loggerDev('Unexpected transaction status: ${status.type}.');
break;
}
}).timeout(timeout);
return result.future;
}
await author.submitAndWatchExtrinsic(extrinsic, (ExtrinsicStatus status) {
switch (status.type) {
case 'finalized':
result.complete('');
break;
case 'dropped':
result.complete(tr('op_dropped'));
break;
case 'invalid':
result.complete(tr('op_invalid'));
break;
case 'usurped':
result.complete(tr('op_usurped'));
break;
case 'future':
break;
case 'ready':
break;
case 'inBlock':
break;
case 'broadcast':
break;
default:
result.complete('Unexpected transaction status: ${status.type}.');
loggerDev('Unexpected transaction status: ${status.type}.');
break;
}
}).timeout(timeout);
Future<String> createIdentity(
{required Contact you, Duration timeout = defPolkadotTimeout}) async {
final List<Node> nodes = NodeManager().getBestNodes(NodeType.endpoint);
nodes.shuffle();
final CesiumWallet walletV1 = await SharedPreferencesHelper().getWallet();
final KeyPair wallet = KeyPair.ed25519.fromSeed(walletV1.seed);
final Completer<String> result = Completer<String>();
return executeOnNodes((Node node, Provider provider, Gdev polkadot) async {
final RuntimeCall call = polkadot.tx.identity.createIdentity(
ownerKey: Address.decode(you.address).pubkey,
);
return result.future;
} catch (e, stacktrace) {
NodeManager().increaseNodeErrors(NodeType.endpoint, node);
loggerDev('Error creating identity in node ${node.url}',
error: e, stackTrace: stacktrace);
}
continue;
}
return 'Error creating identity';
return signAndSend(polkadot, wallet, call, provider, result, timeout);
});
}
Future<String> confirmIdentity(String identityName,
......@@ -128,57 +138,17 @@ Future<String> confirmIdentity(String identityName,
final CesiumWallet walletV1 = await SharedPreferencesHelper().getWallet();
final KeyPair wallet = KeyPair.ed25519.fromSeed(walletV1.seed);
final Completer<String> result = Completer<String>();
for (final Node node in nodes) {
try {
final Provider provider = Provider.fromUri(parseNodeUrl(node.url));
final Gdev polkadot = Gdev(provider);
final RuntimeCall rt = polkadot.tx.identity
.confirmIdentity(idtyName: identityName.codeUnits);
final AuthorApi<Provider> author = AuthorApi<Provider>(provider);
final Uint8List sign = wallet.sign(rt.encode());
await author.submitAndWatchExtrinsic(sign, (ExtrinsicStatus status) {
switch (status.type) {
case 'finalized':
result.complete('');
break;
case 'dropped':
result.complete(tr('op_dropped'));
break;
case 'invalid':
result.complete(tr('op_invalid'));
break;
case 'usurped':
result.complete(tr('op_usurped'));
break;
case 'future':
break;
case 'ready':
break;
case 'inBlock':
break;
case 'broadcast':
break;
default:
result.complete('Unexpected transaction status: ${status.type}.');
loggerDev('Unexpected transaction status: ${status.type}.');
break;
}
}).timeout(timeout);
return await result.future;
} catch (e, stacktrace) {
NodeManager().increaseNodeErrors(NodeType.endpoint, node);
loggerDev('Error confirming identity in node ${node.url}',
error: e, stackTrace: stacktrace);
}
continue;
}
return 'Error confirming identity';
return executeOnNodes((Node node, Provider provider, Gdev polkadot) async {
final RuntimeCall call =
polkadot.tx.identity.confirmIdentity(idtyName: identityName.codeUnits);
return signAndSend(polkadot, wallet, call, provider, result, timeout);
});
}
List<MenuAction> getWotMenuActions(bool isMe, IdentityStatus? status) {
List<MenuAction> getWotMenuActions(
BuildContext context, bool isMe, ContactWotInfo wotInfo) {
final List<MenuAction> actions = <MenuAction>[];
final IdentityStatus? status = wotInfo.you.status;
switch (status) {
case IdentityStatus.MEMBER:
......@@ -189,7 +159,7 @@ List<MenuAction> getWotMenuActions(bool isMe, IdentityStatus? status) {
icon: Icons.refresh,
action: () {
loggerDev('Renewing Membership');
return confirmIdentity('');
return Future<String>.value('');
},
),
MenuAction(
......@@ -202,30 +172,16 @@ List<MenuAction> getWotMenuActions(bool isMe, IdentityStatus? status) {
),
]);
} else {
actions.add(
MenuAction(
name: 'Certify Member',
icon: Icons.verified,
action: () {
loggerDev('Certifying Member');
return Future<String>.value('');
},
),
);
_certAction(wotInfo, actions);
}
break;
case IdentityStatus.UNVALIDATED:
case IdentityStatus.NOTMEMBER:
if (!isMe) {
actions.add(
MenuAction(
name: 'Invite to Membership',
icon: Icons.group_add,
action: () {
loggerDev('Inviting to Membership');
return Future<String>.value('');
},
),
);
_certAction(wotInfo, actions);
_requestDistanceAction(wotInfo.you.index, actions);
} else {
_requestDistanceAction(wotInfo.me.index, actions);
}
break;
......@@ -236,18 +192,74 @@ List<MenuAction> getWotMenuActions(bool isMe, IdentityStatus? status) {
break;
case IdentityStatus.UNCONFIRMED:
break;
if (isMe) {
actions.add(
MenuAction(
name: 'Confirm Identity',
icon: Icons.verified,
action: () {
final TextEditingController controller = TextEditingController();
final RegExp validateIdtyName = RegExp(r'^[a-zA-Z0-9_-]{1,42}$');
case IdentityStatus.UNVALIDATED:
showDialog(
context: context,
builder: (BuildContext context) {
return AlertDialog(
title: Text('Confirm Identity'),
content: TextField(
controller: controller,
decoration: InputDecoration(hintText: 'Identity Name'),
),
actions: <Widget>[
TextButton(
onPressed: () {
Navigator.of(context).pop();
},
child: Text(tr('cancel')),
),
TextButton(
onPressed: () {
final String input = controller.text.trim();
if (validateIdtyName.hasMatch(input)) {
Navigator.of(context).pop();
confirmIdentity(input).then((String result) {
if (!context.mounted) {
return;
}
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(result)),
);
});
} else {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text(tr('Invalid identity name'))),
);
}
},
child: Text(tr('ok')),
),
],
);
},
);
// FIXME(vjrj): Implement this better
return Future<String>.value('');
},
),
);
}
break;
case null:
if (isMe) {
if (!isMe && (wotInfo.canCreateIdty ?? false)) {
actions.add(
MenuAction(
name: tr('wot_create_identity'),
icon: Icons.verified_user_outlined,
action: () {
return createIdentity();
return createIdentity(you: wotInfo.you);
},
),
);
......@@ -256,3 +268,29 @@ List<MenuAction> getWotMenuActions(bool isMe, IdentityStatus? status) {
return actions;
}
void _requestDistanceAction(int? idtyIndex, List<MenuAction> actions) {
if (idtyIndex != null) {
actions.add(MenuAction(
name: 'Request Distance Evaluation',
icon: Icons.social_distance,
action: () {
return requestDistanceEvaluation(idtyIndex);
}));
}
}
void _certAction(ContactWotInfo wotInfo, List<MenuAction> actions) {
if (wotInfo.canCert ?? false) {
actions.add(
MenuAction(
name: 'Certify Member',
icon: Icons.verified,
action: () {
loggerDev('Certifying Member');
return Future<String>.value('');
},
),
);
}
}
lib/ui/widgets/contact_page.dart
+ 62
− 6
View file @ d9db5e23
......@@ -8,11 +8,17 @@ import 'package:text_scroll/text_scroll.dart';
import '../../data/models/app_cubit.dart';
import '../../data/models/contact.dart';
import '../../data/models/contact_cubit.dart';
import '../../data/models/contact_wot_info.dart';
import '../../data/models/menu_action.dart';
import '../../data/models/multi_wallet_transaction_cubit.dart';
import '../../data/models/node_manager.dart';
import '../../g1/api.dart';
import '../../g1/duniter_indexer_helper.dart';
import '../../g1/g1_v2_helper_others.dart';
import '../../g1/wot_actions.dart';
import '../../generated/gdev/pallets/certification.dart';
import '../../generated/gdev/types/pallet_certification/types/idty_cert_meta.dart';
import '../../generated/gdev/types/pallet_identity/types/idty_value.dart';
import '../../shared_prefs_helper.dart';
import '../ui_helpers.dart';
import 'certifications_page.dart';
......@@ -57,19 +63,24 @@ class _ContactPageState extends State<ContactPage> {
Widget build(BuildContext context) {
final Contact contact = widget.contact;
return FutureBuilder<Contact>(
future: getProfile(widget.contact.pubKey, resize: false, complete: true),
builder: (BuildContext context, AsyncSnapshot<Contact> snapshot) {
return FutureBuilder<ContactWotInfo>(
future: _getWotInfo(widget.contact),
builder: (BuildContext context, AsyncSnapshot<ContactWotInfo> snapshot) {
if (snapshot.hasData) {
return _buildContactWidget(snapshot.data!, context);
}
return _buildContactWidget(contact, context);
return _buildContactWidget(
ContactWotInfo(
me: Contact(pubKey: SharedPreferencesHelper().getPubKey()),
you: contact),
context);
},
);
}
DefaultTabController _buildContactWidget(
Contact contact, BuildContext context) {
ContactWotInfo contactWotInfo, BuildContext context) {
final Contact contact = contactWotInfo.you;
// FIXME, duplicated code in contact_menu
final bool isContact =
context.read<ContactsCubit>().isContact(contact.pubKey);
......@@ -103,7 +114,8 @@ class _ContactPageState extends State<ContactPage> {
),
];
if (isV2) {
getWotMenuActions(me, contact.status).forEach((MenuAction action) {
getWotMenuActions(context, me, contactWotInfo)
.forEach((MenuAction action) {
actions.add(
SpeedDialChild(
child: Icon(action.icon),
......@@ -393,6 +405,50 @@ class _ContactPageState extends State<ContactPage> {
),
);
}
Future<ContactWotInfo> _getWotInfo(Contact contact) async {
final Contact you =
await getProfile(widget.contact.pubKey, resize: false, complete: true);
final Contact me = await getProfile(SharedPreferencesHelper().getPubKey(),
resize: false, complete: true);
final ContactWotInfo wotInfo = ContactWotInfo(me: me, you: you);
if (isV2) {
if (you.status == null) {
// Can create Identity from:
// https://duniter.org/wiki/duniter-v2/doc/wot/
// storage.identity.identities(AliceIndex).status is Member
final bool iAmMember = me.isMember ?? false;
// EveAccount exists with minimum amount of 2 ĞD (existential deposit plus fee buffer)
// storage.system.account(EveAccount).data.free is higher than 200
final BigInt? youBalance =
await getBalanceV2(address: widget.contact.address);
final bool enoughBalance =
youBalance != null && youBalance > BigInt.from(200);
// EveAccount is not already used by an identity
// storage.identity.identities(EveAccount) is None
final bool identityUsed =
(await getIdentity(address: you.address)) != null;
wotInfo.canCreateIdty = iAmMember && enoughBalance && !identityUsed;
}
// Can Certificate
final IdtyValue? myIdty = await polkadotIdentity(me);
final IdtyCertMeta? idtyCertMeta = await polkadotIdtyCertMeta(me);
if (myIdty != null && idtyCertMeta != null) {
final int currentBlock = await polkadotCurrentBlock();
// From: https://duniter.org/wiki/duniter-v2/doc/wot/
// storage.identity.identities(AliceIndex).nextCreatableIdentityOn is lower than current block
// storage.certification.storageIdtyCertMeta(AliceIndex).nextIssuableOn is lower than current block
// storage.certification.storageIdtyCertMeta(AliceIndex).issuedCount is lower than constants.certification.maxByIssuer()
final bool canCert = myIdty.nextCreatableIdentityOn < currentBlock &&
idtyCertMeta.nextIssuableOn < currentBlock &&
idtyCertMeta.issuedCount < Constants().maxByIssuer;
wotInfo.canCert = canCert;
}
}
return wotInfo;
}
}
Widget _buildBadge(BuildContext context, int count) {
......
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