activity screen: add gdev start time delimiter

lib/globals.dart

@@ -50,3 +50,6 @@ const debugPin = true;
 String indexerEndpoint = '';
 late double balanceRatio;
 late int udValue;
+
+// Indexer
+late DateTime startBlockchainTime;

lib/models/queries_indexer.dart

@@ -87,3 +87,12 @@ query ($name: String!) {
   }
 }
 ''';
+
+const String getBlockchainStartQ = r'''
+query {
+  block(limit: 1) {
+    created_at
+    number
+  }
+}
+''';

lib/providers/duniter_indexer.dart

@@ -446,7 +446,24 @@ class DuniterIndexer with ChangeNotifier {
   //     QueryResult<Object?> result, FetchMoreOptions options, String address) {}
 }
 
+//// Manuals queries
+
 Future<bool> isIdtyExist(String name) async {
+  final variables = <String, dynamic>{
+    'name': name,
+  };
+  final result = await _execQuery(isIdtyExistQ, variables);
+  return result.data!['identity']?.isEmpty ?? false ? false : true;
+}
+
+Future<DateTime> getBlockStart() async {
+  final result = await _execQuery(getBlockchainStartQ, {});
+  startBlockchainTime = DateTime.parse(result.data!['block'][0]['created_at']);
+  return startBlockchainTime;
+}
+
+Future<QueryResult> _execQuery(
+    String query, Map<String, dynamic> variables) async {
   final httpLink = HttpLink(
     '$indexerEndpoint/v1/graphql',
   );
@@ -456,14 +473,8 @@ Future<bool> isIdtyExist(String name) async {
     link: httpLink,
   );
 
-  final QueryOptions options = QueryOptions(
-    document: gql(isIdtyExistQ),
-    variables: <String, dynamic>{
-      'name': name,
-    },
-  );
+  final QueryOptions options =
+      QueryOptions(document: gql(query), variables: variables);
 
-  final QueryResult result = await client.query(options);
-
-  return result.data!['identity']?.isEmpty ?? false ? false : true;
+  return await client.query(options);
 }

lib/providers/substrate_sdk.dart

@@ -7,6 +7,7 @@ import 'package:flutter/material.dart';
 import 'package:gecko/globals.dart';
 import 'package:gecko/models/chest_data.dart';
 import 'package:gecko/models/wallet_data.dart';
+import 'package:gecko/providers/duniter_indexer.dart';
 import 'package:gecko/providers/home.dart';
 import 'package:gecko/providers/my_wallets.dart';
 import 'package:gecko/providers/wallet_options.dart';
@@ -383,6 +384,77 @@ class SubstrateSdk with ChangeNotifier {
     return estimateFees.partialFee / 100;
   }
 
+  int hexStringToUint16(String input) {
+    // Slice the string in 2-char substrings and parse it from hex to decimal
+    final bytes = sliceString(input, 2).map((s) => int.parse(s, radix: 16));
+
+    // Create a Uint8 from the 2-bytes list
+    final u8list = Uint8List.fromList(bytes.toList());
+
+    // Return a Uint16 little endian representation
+    return ByteData.view(u8list.buffer).getUint16(0, Endian.little);
+  }
+
+  List<String> sliceString(String input, int count) {
+    if (input.isEmpty) return [];
+
+    if (input.length % count != 0) {
+      throw ArgumentError("Cannot slice $input in $count slices.");
+    }
+    // final slices = List<String>(count);
+    var slices = List<String>.filled(count, '');
+
+    int len = input.length;
+    int sliceSize = len ~/ count;
+
+    for (var i = 0; i < count; i++) {
+      var start = i * sliceSize;
+      slices[i] = input.substring(start, start + sliceSize);
+    }
+
+    return List.unmodifiable(slices);
+  }
+
+  Future<DateFormat> getBlockchainStart() async {
+    ////// Manu indexer
+    //// Extract block date. Ugly, I can't find a better way to get the date of the block ?
+    //// The only polkadot issue for that : https://github.com/polkadot-js/api/issues/2603
+    // const created_at = new Date(
+    //   signedBlock.block.extrinsics
+    //     .filter(
+    //       ({ method: { section, method } }) =>
+    //         section === 'timestamp' && method === 'set'
+    //     )[0]
+    //     .args[0].toNumber()
+    // )
+    //// manu rpc
+    // genesis: api.genesisHash.toHex(),
+    // chain: await api.rpc.chain.getHeader(),
+    // chainInfo: await api.registry.getChainProperties(),
+    // test: await api.rpc.state.getPairs('0x')
+    // query block finalisé qui ne change jamais.
+    // api.rpc.chain.subscribeFinalizedHeads
+    // events: await api.rpc.state.getStorage('0x26aa394eea5630e07c48ae0c9558cef780d41e5e16056765bc8461851072c9d7'),
+    // lastFinalizedBlock: await api.rpc.chain.getFinalizedHead()
+    // get block
+    // api.rpc.chain.getFinalizedHead
+
+    // shit
+    // final blockHash =
+    //     await sdk.webView!.evalJavascript('api.rpc.chain.getBlockHash(1)');
+    // final Map blockContent = await sdk.webView!
+    //     .evalJavascript('api.rpc.chain.getBlock("$blockHash")');
+    // final String dateBrut = blockContent['block']['extrinsics'][0];
+
+    // final dateTextByte = hex.decode(dateBrut.substring(2));
+
+    // final dateText = await sdk.webView!
+    //     .evalJavascript('api.tx($dateTextByte)', wrapPromise: false);
+
+    // log.d('aaaaaaaaaaaaaaaaaaaaa: $dateText');
+    return DateFormat();
+  }
+
   /////////////////////////////////////
   ////// 3: SUBSTRATE CONNECTION //////
   /////////////////////////////////////
@@ -403,7 +475,7 @@ class SubstrateSdk with ChangeNotifier {
   }
 
   Future<void> connectNode(BuildContext ctx) async {
-    HomeProvider homeProvider = Provider.of<HomeProvider>(ctx, listen: false);
+    final homeProvider = Provider.of<HomeProvider>(ctx, listen: false);
     final myWalletProvider = Provider.of<MyWalletsProvider>(ctx, listen: false);
 
     homeProvider.changeMessage("connectionPending".tr(), 0);
@@ -448,6 +520,9 @@ class SubstrateSdk with ChangeNotifier {
       await initCurrencyParameters();
       await getBalanceRatio();
 
+      // Indexer
+      getBlockStart();
+
       notifyListeners();
       homeProvider.changeMessage(
           "wellConnectedToNode"

lib/screens/activity.dart

@@ -34,6 +34,8 @@ class ActivityScreen extends StatelessWidget with ChangeNotifier {
     HomeProvider homeProvider =
         Provider.of<HomeProvider>(context, listen: false);
 
+    // log.d('aaaaaaaaaaaaaaaaaaaaa $startBlockchainTime');
+
     return Scaffold(
         key: _scaffoldKey,
         appBar: AppBar(
@@ -196,6 +198,8 @@ class ActivityScreen extends StatelessWidget with ChangeNotifier {
     bool isTody = false;
     bool isYesterday = false;
     bool isThisWeek = false;
+    bool isMigrationTime = false;
+    bool isMigrationTimePassed = false;
 
     final Map<int, String> monthsInYear = {
       1: "month1".tr(),
@@ -278,7 +282,25 @@ class ActivityScreen extends StatelessWidget with ChangeNotifier {
         finalAmount = '$amount $currencyName';
       }
 
+      if (!isMigrationTimePassed && date.compareTo(startBlockchainTime) < 0) {
+        isMigrationTimePassed = true;
+        isMigrationTime = true;
+      } else {
+        isMigrationTime = false;
+      }
+
       return Column(children: <Widget>[
+        if (isMigrationTime)
+          const Padding(
+            padding: EdgeInsets.symmetric(vertical: 30),
+            child: Text(
+              'Début de la ĞDev',
+              style: TextStyle(
+                  fontSize: 25,
+                  color: Colors.blueAccent,
+                  fontWeight: FontWeight.w500),
+            ),
+          ),
         if (dateDelimiter != null)
           Padding(
             padding: const EdgeInsets.symmetric(vertical: 30),

lib/widgets/header_profile.dart

@@ -32,6 +32,7 @@ class HeaderProfile extends StatelessWidget {
 
     return Stack(children: <Widget>[
       Consumer<SubstrateSdk>(builder: (context, sub, _) {
+        // sub.getBlockchainStart();
         bool isAccountExist = balanceCache[address] != 0;
         return Container(
             height: 180,

pubspec.yaml

@@ -5,7 +5,7 @@ description: Pay with G1.
 # pub.dev using `pub publish`. This is preferred for private packages.
 publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 
-version: 0.0.12+37
+version: 0.0.12+39
 
 environment:
   sdk: '>=2.12.0 <3.0.0'