Merge pull request #527 from cypherstack/custom_block_explorers

Custom block explorers

lib/db/isar/main_db.dart

@@ -2,6 +2,7 @@ import 'package:decimal/decimal.dart';
 import 'package:flutter_native_splash/cli_commands.dart';
 import 'package:isar/isar.dart';
 import 'package:stackwallet/exceptions/main_db/main_db_exception.dart';
+import 'package:stackwallet/models/isar/models/block_explorer.dart';
 import 'package:stackwallet/models/isar/models/isar_models.dart';
 import 'package:stackwallet/utilities/amount/amount.dart';
 import 'package:stackwallet/utilities/enums/coin_enum.dart';
@@ -33,6 +34,7 @@ class MainDB {
         AddressSchema,
         AddressLabelSchema,
         EthContractSchema,
+        TransactionBlockExplorerSchema,
       ],
       directory: (await StackFileSystem.applicationIsarDirectory()).path,
       // inspector: kDebugMode,
@@ -43,6 +45,25 @@ class MainDB {
     return true;
   }
 
+  // tx block explorers
+  TransactionBlockExplorer? getTransactionBlockExplorer({required Coin coin}) {
+    return isar.transactionBlockExplorers
+        .where()
+        .tickerEqualTo(coin.ticker)
+        .findFirstSync();
+  }
+
+  Future<int> putTransactionBlockExplorer(
+      TransactionBlockExplorer explorer) async {
+    try {
+      return await isar.writeTxn(() async {
+        return await isar.transactionBlockExplorers.put(explorer);
+      });
+    } catch (e) {
+      throw MainDBException("failed putTransactionBlockExplorer: $explorer", e);
+    }
+  }
+
   // addresses
   QueryBuilder<Address, Address, QAfterWhereClause> getAddresses(
           String walletId) =>

lib/models/isar/models/block_explorer.dart

@@ -0,0 +1,35 @@
+import 'package:isar/isar.dart';
+import 'package:stackwallet/utilities/enums/coin_enum.dart';
+
+part 'block_explorer.g.dart';
+
+@collection
+class TransactionBlockExplorer {
+  TransactionBlockExplorer({
+    required this.ticker,
+    required this.url,
+  });
+
+  Id id = Isar.autoIncrement;
+
+  @Index(unique: true, replace: true)
+  late final String ticker;
+
+  late final String url;
+
+  @ignore
+  Coin? get coin {
+    try {
+      return coinFromTickerCaseInsensitive(ticker);
+    } catch (_) {
+      return null;
+    }
+  }
+
+  Uri? getUrlFor({required String txid}) => Uri.tryParse(
+        url.replaceFirst(
+          "%5BTXID%5D",
+          txid,
+        ),
+      );
+}

lib/models/isar/models/block_explorer.g.dart

@@ -0,0 +1,764 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'block_explorer.dart';
+
+// **************************************************************************
+// IsarCollectionGenerator
+// **************************************************************************
+
+// coverage:ignore-file
+// ignore_for_file: duplicate_ignore, non_constant_identifier_names, constant_identifier_names, invalid_use_of_protected_member, unnecessary_cast, prefer_const_constructors, lines_longer_than_80_chars, require_trailing_commas, inference_failure_on_function_invocation, unnecessary_parenthesis, unnecessary_raw_strings, unnecessary_null_checks, join_return_with_assignment, prefer_final_locals, avoid_js_rounded_ints, avoid_positional_boolean_parameters
+
+extension GetTransactionBlockExplorerCollection on Isar {
+  IsarCollection<TransactionBlockExplorer> get transactionBlockExplorers =>
+      this.collection();
+}
+
+const TransactionBlockExplorerSchema = CollectionSchema(
+  name: r'TransactionBlockExplorer',
+  id: 4209077296238413906,
+  properties: {
+    r'ticker': PropertySchema(
+      id: 0,
+      name: r'ticker',
+      type: IsarType.string,
+    ),
+    r'url': PropertySchema(
+      id: 1,
+      name: r'url',
+      type: IsarType.string,
+    )
+  },
+  estimateSize: _transactionBlockExplorerEstimateSize,
+  serialize: _transactionBlockExplorerSerialize,
+  deserialize: _transactionBlockExplorerDeserialize,
+  deserializeProp: _transactionBlockExplorerDeserializeProp,
+  idName: r'id',
+  indexes: {
+    r'ticker': IndexSchema(
+      id: -8264639257510259247,
+      name: r'ticker',
+      unique: true,
+      replace: true,
+      properties: [
+        IndexPropertySchema(
+          name: r'ticker',
+          type: IndexType.hash,
+          caseSensitive: true,
+        )
+      ],
+    )
+  },
+  links: {},
+  embeddedSchemas: {},
+  getId: _transactionBlockExplorerGetId,
+  getLinks: _transactionBlockExplorerGetLinks,
+  attach: _transactionBlockExplorerAttach,
+  version: '3.0.5',
+);
+
+int _transactionBlockExplorerEstimateSize(
+  TransactionBlockExplorer object,
+  List<int> offsets,
+  Map<Type, List<int>> allOffsets,
+) {
+  var bytesCount = offsets.last;
+  bytesCount += 3 + object.ticker.length * 3;
+  bytesCount += 3 + object.url.length * 3;
+  return bytesCount;
+}
+
+void _transactionBlockExplorerSerialize(
+  TransactionBlockExplorer object,
+  IsarWriter writer,
+  List<int> offsets,
+  Map<Type, List<int>> allOffsets,
+) {
+  writer.writeString(offsets[0], object.ticker);
+  writer.writeString(offsets[1], object.url);
+}
+
+TransactionBlockExplorer _transactionBlockExplorerDeserialize(
+  Id id,
+  IsarReader reader,
+  List<int> offsets,
+  Map<Type, List<int>> allOffsets,
+) {
+  final object = TransactionBlockExplorer(
+    ticker: reader.readString(offsets[0]),
+    url: reader.readString(offsets[1]),
+  );
+  object.id = id;
+  return object;
+}
+
+P _transactionBlockExplorerDeserializeProp<P>(
+  IsarReader reader,
+  int propertyId,
+  int offset,
+  Map<Type, List<int>> allOffsets,
+) {
+  switch (propertyId) {
+    case 0:
+      return (reader.readString(offset)) as P;
+    case 1:
+      return (reader.readString(offset)) as P;
+    default:
+      throw IsarError('Unknown property with id $propertyId');
+  }
+}
+
+Id _transactionBlockExplorerGetId(TransactionBlockExplorer object) {
+  return object.id;
+}
+
+List<IsarLinkBase<dynamic>> _transactionBlockExplorerGetLinks(
+    TransactionBlockExplorer object) {
+  return [];
+}
+
+void _transactionBlockExplorerAttach(
+    IsarCollection<dynamic> col, Id id, TransactionBlockExplorer object) {
+  object.id = id;
+}
+
+extension TransactionBlockExplorerByIndex
+    on IsarCollection<TransactionBlockExplorer> {
+  Future<TransactionBlockExplorer?> getByTicker(String ticker) {
+    return getByIndex(r'ticker', [ticker]);
+  }
+
+  TransactionBlockExplorer? getByTickerSync(String ticker) {
+    return getByIndexSync(r'ticker', [ticker]);
+  }
+
+  Future<bool> deleteByTicker(String ticker) {
+    return deleteByIndex(r'ticker', [ticker]);
+  }
+
+  bool deleteByTickerSync(String ticker) {
+    return deleteByIndexSync(r'ticker', [ticker]);
+  }
+
+  Future<List<TransactionBlockExplorer?>> getAllByTicker(
+      List<String> tickerValues) {
+    final values = tickerValues.map((e) => [e]).toList();
+    return getAllByIndex(r'ticker', values);
+  }
+
+  List<TransactionBlockExplorer?> getAllByTickerSync(
+      List<String> tickerValues) {
+    final values = tickerValues.map((e) => [e]).toList();
+    return getAllByIndexSync(r'ticker', values);
+  }
+
+  Future<int> deleteAllByTicker(List<String> tickerValues) {
+    final values = tickerValues.map((e) => [e]).toList();
+    return deleteAllByIndex(r'ticker', values);
+  }
+
+  int deleteAllByTickerSync(List<String> tickerValues) {
+    final values = tickerValues.map((e) => [e]).toList();
+    return deleteAllByIndexSync(r'ticker', values);
+  }
+
+  Future<Id> putByTicker(TransactionBlockExplorer object) {
+    return putByIndex(r'ticker', object);
+  }
+
+  Id putByTickerSync(TransactionBlockExplorer object, {bool saveLinks = true}) {
+    return putByIndexSync(r'ticker', object, saveLinks: saveLinks);
+  }
+
+  Future<List<Id>> putAllByTicker(List<TransactionBlockExplorer> objects) {
+    return putAllByIndex(r'ticker', objects);
+  }
+
+  List<Id> putAllByTickerSync(List<TransactionBlockExplorer> objects,
+      {bool saveLinks = true}) {
+    return putAllByIndexSync(r'ticker', objects, saveLinks: saveLinks);
+  }
+}
+
+extension TransactionBlockExplorerQueryWhereSort on QueryBuilder<
+    TransactionBlockExplorer, TransactionBlockExplorer, QWhere> {
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer, QAfterWhere>
+      anyId() {
+    return QueryBuilder.apply(this, (query) {
+      return query.addWhereClause(const IdWhereClause.any());
+    });
+  }
+}
+
+extension TransactionBlockExplorerQueryWhere on QueryBuilder<
+    TransactionBlockExplorer, TransactionBlockExplorer, QWhereClause> {
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterWhereClause> idEqualTo(Id id) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addWhereClause(IdWhereClause.between(
+        lower: id,
+        upper: id,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterWhereClause> idNotEqualTo(Id id) {
+    return QueryBuilder.apply(this, (query) {
+      if (query.whereSort == Sort.asc) {
+        return query
+            .addWhereClause(
+              IdWhereClause.lessThan(upper: id, includeUpper: false),
+            )
+            .addWhereClause(
+              IdWhereClause.greaterThan(lower: id, includeLower: false),
+            );
+      } else {
+        return query
+            .addWhereClause(
+              IdWhereClause.greaterThan(lower: id, includeLower: false),
+            )
+            .addWhereClause(
+              IdWhereClause.lessThan(upper: id, includeUpper: false),
+            );
+      }
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterWhereClause> idGreaterThan(Id id, {bool include = false}) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addWhereClause(
+        IdWhereClause.greaterThan(lower: id, includeLower: include),
+      );
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterWhereClause> idLessThan(Id id, {bool include = false}) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addWhereClause(
+        IdWhereClause.lessThan(upper: id, includeUpper: include),
+      );
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterWhereClause> idBetween(
+    Id lowerId,
+    Id upperId, {
+    bool includeLower = true,
+    bool includeUpper = true,
+  }) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addWhereClause(IdWhereClause.between(
+        lower: lowerId,
+        includeLower: includeLower,
+        upper: upperId,
+        includeUpper: includeUpper,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterWhereClause> tickerEqualTo(String ticker) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addWhereClause(IndexWhereClause.equalTo(
+        indexName: r'ticker',
+        value: [ticker],
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterWhereClause> tickerNotEqualTo(String ticker) {
+    return QueryBuilder.apply(this, (query) {
+      if (query.whereSort == Sort.asc) {
+        return query
+            .addWhereClause(IndexWhereClause.between(
+              indexName: r'ticker',
+              lower: [],
+              upper: [ticker],
+              includeUpper: false,
+            ))
+            .addWhereClause(IndexWhereClause.between(
+              indexName: r'ticker',
+              lower: [ticker],
+              includeLower: false,
+              upper: [],
+            ));
+      } else {
+        return query
+            .addWhereClause(IndexWhereClause.between(
+              indexName: r'ticker',
+              lower: [ticker],
+              includeLower: false,
+              upper: [],
+            ))
+            .addWhereClause(IndexWhereClause.between(
+              indexName: r'ticker',
+              lower: [],
+              upper: [ticker],
+              includeUpper: false,
+            ));
+      }
+    });
+  }
+}
+
+extension TransactionBlockExplorerQueryFilter on QueryBuilder<
+    TransactionBlockExplorer, TransactionBlockExplorer, QFilterCondition> {
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterFilterCondition> idEqualTo(Id value) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.equalTo(
+        property: r'id',
+        value: value,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterFilterCondition> idGreaterThan(
+    Id value, {
+    bool include = false,
+  }) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.greaterThan(
+        include: include,
+        property: r'id',
+        value: value,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterFilterCondition> idLessThan(
+    Id value, {
+    bool include = false,
+  }) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.lessThan(
+        include: include,
+        property: r'id',
+        value: value,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterFilterCondition> idBetween(
+    Id lower,
+    Id upper, {
+    bool includeLower = true,
+    bool includeUpper = true,
+  }) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.between(
+        property: r'id',
+        lower: lower,
+        includeLower: includeLower,
+        upper: upper,
+        includeUpper: includeUpper,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterFilterCondition> tickerEqualTo(
+    String value, {
+    bool caseSensitive = true,
+  }) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.equalTo(
+        property: r'ticker',
+        value: value,
+        caseSensitive: caseSensitive,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterFilterCondition> tickerGreaterThan(
+    String value, {
+    bool include = false,
+    bool caseSensitive = true,
+  }) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.greaterThan(
+        include: include,
+        property: r'ticker',
+        value: value,
+        caseSensitive: caseSensitive,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterFilterCondition> tickerLessThan(
+    String value, {
+    bool include = false,
+    bool caseSensitive = true,
+  }) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.lessThan(
+        include: include,
+        property: r'ticker',
+        value: value,
+        caseSensitive: caseSensitive,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterFilterCondition> tickerBetween(
+    String lower,
+    String upper, {
+    bool includeLower = true,
+    bool includeUpper = true,
+    bool caseSensitive = true,
+  }) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.between(
+        property: r'ticker',
+        lower: lower,
+        includeLower: includeLower,
+        upper: upper,
+        includeUpper: includeUpper,
+        caseSensitive: caseSensitive,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterFilterCondition> tickerStartsWith(
+    String value, {
+    bool caseSensitive = true,
+  }) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.startsWith(
+        property: r'ticker',
+        value: value,
+        caseSensitive: caseSensitive,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterFilterCondition> tickerEndsWith(
+    String value, {
+    bool caseSensitive = true,
+  }) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.endsWith(
+        property: r'ticker',
+        value: value,
+        caseSensitive: caseSensitive,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+          QAfterFilterCondition>
+      tickerContains(String value, {bool caseSensitive = true}) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.contains(
+        property: r'ticker',
+        value: value,
+        caseSensitive: caseSensitive,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+          QAfterFilterCondition>
+      tickerMatches(String pattern, {bool caseSensitive = true}) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.matches(
+        property: r'ticker',
+        wildcard: pattern,
+        caseSensitive: caseSensitive,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterFilterCondition> tickerIsEmpty() {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.equalTo(
+        property: r'ticker',
+        value: '',
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterFilterCondition> tickerIsNotEmpty() {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.greaterThan(
+        property: r'ticker',
+        value: '',
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterFilterCondition> urlEqualTo(
+    String value, {
+    bool caseSensitive = true,
+  }) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.equalTo(
+        property: r'url',
+        value: value,
+        caseSensitive: caseSensitive,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterFilterCondition> urlGreaterThan(
+    String value, {
+    bool include = false,
+    bool caseSensitive = true,
+  }) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.greaterThan(
+        include: include,
+        property: r'url',
+        value: value,
+        caseSensitive: caseSensitive,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterFilterCondition> urlLessThan(
+    String value, {
+    bool include = false,
+    bool caseSensitive = true,
+  }) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.lessThan(
+        include: include,
+        property: r'url',
+        value: value,
+        caseSensitive: caseSensitive,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterFilterCondition> urlBetween(
+    String lower,
+    String upper, {
+    bool includeLower = true,
+    bool includeUpper = true,
+    bool caseSensitive = true,
+  }) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.between(
+        property: r'url',
+        lower: lower,
+        includeLower: includeLower,
+        upper: upper,
+        includeUpper: includeUpper,
+        caseSensitive: caseSensitive,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterFilterCondition> urlStartsWith(
+    String value, {
+    bool caseSensitive = true,
+  }) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.startsWith(
+        property: r'url',
+        value: value,
+        caseSensitive: caseSensitive,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterFilterCondition> urlEndsWith(
+    String value, {
+    bool caseSensitive = true,
+  }) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.endsWith(
+        property: r'url',
+        value: value,
+        caseSensitive: caseSensitive,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+          QAfterFilterCondition>
+      urlContains(String value, {bool caseSensitive = true}) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.contains(
+        property: r'url',
+        value: value,
+        caseSensitive: caseSensitive,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+          QAfterFilterCondition>
+      urlMatches(String pattern, {bool caseSensitive = true}) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.matches(
+        property: r'url',
+        wildcard: pattern,
+        caseSensitive: caseSensitive,
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterFilterCondition> urlIsEmpty() {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.equalTo(
+        property: r'url',
+        value: '',
+      ));
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer,
+      QAfterFilterCondition> urlIsNotEmpty() {
+    return QueryBuilder.apply(this, (query) {
+      return query.addFilterCondition(FilterCondition.greaterThan(
+        property: r'url',
+        value: '',
+      ));
+    });
+  }
+}
+
+extension TransactionBlockExplorerQueryObject on QueryBuilder<
+    TransactionBlockExplorer, TransactionBlockExplorer, QFilterCondition> {}
+
+extension TransactionBlockExplorerQueryLinks on QueryBuilder<
+    TransactionBlockExplorer, TransactionBlockExplorer, QFilterCondition> {}
+
+extension TransactionBlockExplorerQuerySortBy on QueryBuilder<
+    TransactionBlockExplorer, TransactionBlockExplorer, QSortBy> {
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer, QAfterSortBy>
+      sortByTicker() {
+    return QueryBuilder.apply(this, (query) {
+      return query.addSortBy(r'ticker', Sort.asc);
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer, QAfterSortBy>
+      sortByTickerDesc() {
+    return QueryBuilder.apply(this, (query) {
+      return query.addSortBy(r'ticker', Sort.desc);
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer, QAfterSortBy>
+      sortByUrl() {
+    return QueryBuilder.apply(this, (query) {
+      return query.addSortBy(r'url', Sort.asc);
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer, QAfterSortBy>
+      sortByUrlDesc() {
+    return QueryBuilder.apply(this, (query) {
+      return query.addSortBy(r'url', Sort.desc);
+    });
+  }
+}
+
+extension TransactionBlockExplorerQuerySortThenBy on QueryBuilder<
+    TransactionBlockExplorer, TransactionBlockExplorer, QSortThenBy> {
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer, QAfterSortBy>
+      thenById() {
+    return QueryBuilder.apply(this, (query) {
+      return query.addSortBy(r'id', Sort.asc);
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer, QAfterSortBy>
+      thenByIdDesc() {
+    return QueryBuilder.apply(this, (query) {
+      return query.addSortBy(r'id', Sort.desc);
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer, QAfterSortBy>
+      thenByTicker() {
+    return QueryBuilder.apply(this, (query) {
+      return query.addSortBy(r'ticker', Sort.asc);
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer, QAfterSortBy>
+      thenByTickerDesc() {
+    return QueryBuilder.apply(this, (query) {
+      return query.addSortBy(r'ticker', Sort.desc);
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer, QAfterSortBy>
+      thenByUrl() {
+    return QueryBuilder.apply(this, (query) {
+      return query.addSortBy(r'url', Sort.asc);
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer, QAfterSortBy>
+      thenByUrlDesc() {
+    return QueryBuilder.apply(this, (query) {
+      return query.addSortBy(r'url', Sort.desc);
+    });
+  }
+}
+
+extension TransactionBlockExplorerQueryWhereDistinct on QueryBuilder<
+    TransactionBlockExplorer, TransactionBlockExplorer, QDistinct> {
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer, QDistinct>
+      distinctByTicker({bool caseSensitive = true}) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addDistinctBy(r'ticker', caseSensitive: caseSensitive);
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, TransactionBlockExplorer, QDistinct>
+      distinctByUrl({bool caseSensitive = true}) {
+    return QueryBuilder.apply(this, (query) {
+      return query.addDistinctBy(r'url', caseSensitive: caseSensitive);
+    });
+  }
+}
+
+extension TransactionBlockExplorerQueryProperty on QueryBuilder<
+    TransactionBlockExplorer, TransactionBlockExplorer, QQueryProperty> {
+  QueryBuilder<TransactionBlockExplorer, int, QQueryOperations> idProperty() {
+    return QueryBuilder.apply(this, (query) {
+      return query.addPropertyName(r'id');
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, String, QQueryOperations>
+      tickerProperty() {
+    return QueryBuilder.apply(this, (query) {
+      return query.addPropertyName(r'ticker');
+    });
+  }
+
+  QueryBuilder<TransactionBlockExplorer, String, QQueryOperations>
+      urlProperty() {
+    return QueryBuilder.apply(this, (query) {
+      return query.addPropertyName(r'url');
+    });
+  }
+}

lib/pages/settings_views/global_settings_view/advanced_views/advanced_settings_view.dart

@@ -1,15 +1,18 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:stackwallet/pages/settings_views/global_settings_view/advanced_views/debug_view.dart';
+import 'package:stackwallet/pages/settings_views/global_settings_view/advanced_views/manage_explorer_view.dart';
 import 'package:stackwallet/pages/stack_privacy_calls.dart';
 import 'package:stackwallet/providers/global/prefs_provider.dart';
 import 'package:stackwallet/utilities/constants.dart';
 import 'package:stackwallet/utilities/text_styles.dart';
 import 'package:stackwallet/utilities/theme/stack_colors.dart';
 import 'package:stackwallet/widgets/background.dart';
+import 'package:stackwallet/widgets/choose_coin_view.dart';
 import 'package:stackwallet/widgets/custom_buttons/app_bar_icon_button.dart';
 import 'package:stackwallet/widgets/custom_buttons/draggable_switch_button.dart';
 import 'package:stackwallet/widgets/rounded_white_container.dart';
+import 'package:tuple/tuple.dart';
 
 class AdvancedSettingsView extends StatelessWidget {
   const AdvancedSettingsView({
@@ -221,6 +224,43 @@ class AdvancedSettingsView extends StatelessWidget {
                   },
                 ),
               ),
+              const SizedBox(
+                height: 8,
+              ),
+              RoundedWhiteContainer(
+                padding: const EdgeInsets.all(0),
+                child: RawMaterialButton(
+                  // splashColor: Theme.of(context).extension<StackColors>()!.highlight,
+                  materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
+                  shape: RoundedRectangleBorder(
+                    borderRadius: BorderRadius.circular(
+                      Constants.size.circularBorderRadius,
+                    ),
+                  ),
+                  onPressed: () {
+                    Navigator.of(context).pushNamed(ChooseCoinView.routeName,
+                        arguments: const Tuple3<String, String, String>(
+                            "Manage block explorers",
+                            "block explorer",
+                            ManageExplorerView.routeName));
+                  },
+                  child: Padding(
+                    padding: const EdgeInsets.symmetric(
+                      horizontal: 12,
+                      vertical: 20,
+                    ),
+                    child: Row(
+                      children: [
+                        Text(
+                          "Change block explorer",
+                          style: STextStyles.titleBold12(context),
+                          textAlign: TextAlign.left,
+                        ),
+                      ],
+                    ),
+                  ),
+                ),
+              ),
             ],
           ),
         ),

lib/pages/settings_views/global_settings_view/advanced_views/manage_explorer_view.dart

@@ -0,0 +1,117 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:stackwallet/utilities/block_explorers.dart';
+import 'package:stackwallet/utilities/enums/coin_enum.dart';
+import 'package:stackwallet/utilities/text_styles.dart';
+import 'package:stackwallet/utilities/theme/stack_colors.dart';
+import 'package:stackwallet/widgets/background.dart';
+import 'package:stackwallet/widgets/custom_buttons/app_bar_icon_button.dart';
+import 'package:stackwallet/widgets/rounded_white_container.dart';
+
+class ManageExplorerView extends ConsumerStatefulWidget {
+  const ManageExplorerView({
+    Key? key,
+    required this.coin,
+  }) : super(key: key);
+
+  static const String routeName = "/manageExplorer";
+
+  final Coin coin;
+
+  @override
+  ConsumerState<ManageExplorerView> createState() => _ManageExplorerViewState();
+}
+
+class _ManageExplorerViewState extends ConsumerState<ManageExplorerView> {
+  late TextEditingController textEditingController;
+
+  @override
+  void initState() {
+    super.initState();
+    textEditingController = TextEditingController(
+        text:
+            getBlockExplorerTransactionUrlFor(coin: widget.coin, txid: "[TXID]")
+                .toString()
+                .replaceAll("%5BTXID%5D", "[TXID]"));
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Background(
+      child: Scaffold(
+        backgroundColor: Theme.of(context).extension<StackColors>()!.background,
+        appBar: AppBar(
+          leading: AppBarBackButton(
+            onPressed: () {
+              Navigator.of(context).pop();
+            },
+          ),
+          title: Text(
+            "${widget.coin.prettyName} block explorer",
+            style: STextStyles.navBarTitle(context),
+          ),
+        ),
+        body: Padding(
+          padding: const EdgeInsets.all(16),
+          child: Column(
+            children: [
+              Expanded(
+                  child: Column(
+                children: [
+                  TextField(
+                    controller: textEditingController,
+                    decoration: const InputDecoration(
+                      border: OutlineInputBorder(),
+                    ),
+                  ),
+                  const SizedBox(
+                    height: 8,
+                  ),
+                  RoundedWhiteContainer(
+                    child: Center(
+                      child: Text(
+                        "Edit your block explorer above. Keep in mind that "
+                        "every block explorer has a slightly different URL "
+                        "scheme.\n\nPaste in your block explorer of choice,"
+                        " then edit in [TXID] where the transaction ID "
+                        "should go, and Stack Wallet will auto fill the "
+                        "transaction ID in that place of URL.",
+                        style: STextStyles.itemSubtitle(context),
+                      ),
+                    ),
+                  ),
+                ],
+              )),
+              Align(
+                alignment: Alignment.bottomCenter,
+                child: ConstrainedBox(
+                  constraints: const BoxConstraints(
+                    minWidth: 480,
+                    minHeight: 70,
+                  ),
+                  child: TextButton(
+                    style: Theme.of(context)
+                        .extension<StackColors>()!
+                        .getPrimaryEnabledButtonStyle(context),
+                    onPressed: () {
+                      textEditingController.text =
+                          textEditingController.text.trim();
+                      setBlockExplorerForCoin(
+                              coin: widget.coin,
+                              url: Uri.parse(textEditingController.text))
+                          .then((value) => Navigator.of(context).pop());
+                    },
+                    child: Text(
+                      "Save",
+                      style: STextStyles.button(context),
+                    ),
+                  ),
+                ),
+              )
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}

lib/route_generator.dart

@@ -63,6 +63,7 @@ import 'package:stackwallet/pages/send_view/token_send_view.dart';
 import 'package:stackwallet/pages/settings_views/global_settings_view/about_view.dart';
 import 'package:stackwallet/pages/settings_views/global_settings_view/advanced_views/advanced_settings_view.dart';
 import 'package:stackwallet/pages/settings_views/global_settings_view/advanced_views/debug_view.dart';
+import 'package:stackwallet/pages/settings_views/global_settings_view/advanced_views/manage_explorer_view.dart';
 import 'package:stackwallet/pages/settings_views/global_settings_view/appearance_settings/appearance_settings_view.dart';
 import 'package:stackwallet/pages/settings_views/global_settings_view/appearance_settings/system_brightness_theme_selection_view.dart';
 import 'package:stackwallet/pages/settings_views/global_settings_view/currency_view.dart';
@@ -99,6 +100,7 @@ import 'package:stackwallet/pages/settings_views/wallet_settings_view/wallet_set
 import 'package:stackwallet/pages/settings_views/wallet_settings_view/wallet_settings_wallet_settings/rename_wallet_view.dart';
 import 'package:stackwallet/pages/settings_views/wallet_settings_view/wallet_settings_wallet_settings/wallet_settings_wallet_settings_view.dart';
 import 'package:stackwallet/pages/stack_privacy_calls.dart';
+import 'package:stackwallet/widgets/choose_coin_view.dart';
 import 'package:stackwallet/pages/token_view/my_tokens_view.dart';
 import 'package:stackwallet/pages/token_view/token_contract_details_view.dart';
 import 'package:stackwallet/pages/token_view/token_view.dart';
@@ -206,6 +208,36 @@ class RouteGenerator {
             builder: (_) => const StackPrivacyCalls(isSettings: false),
             settings: RouteSettings(name: settings.name));
 
+      case ChooseCoinView.routeName:
+        if (args is Tuple3<String, String, String>) {
+          return getRoute(
+            shouldUseMaterialRoute: useMaterialPageRoute,
+            builder: (_) => ChooseCoinView(
+              title: args.item1,
+              coinAdditional: args.item2,
+              nextRouteName: args.item3,
+            ),
+            settings: RouteSettings(
+              name: settings.name,
+            ),
+          );
+        }
+        return _routeError("${settings.name} invalid args: ${args.toString()}");
+
+      case ManageExplorerView.routeName:
+        if (args is Coin) {
+          return getRoute(
+            shouldUseMaterialRoute: useMaterialPageRoute,
+            builder: (_) => ManageExplorerView(
+              coin: args,
+            ),
+            settings: RouteSettings(
+              name: settings.name,
+            ),
+          );
+        }
+        return _routeError("${settings.name} invalid args: ${args.toString()}");
+
       case WalletsView.routeName:
         return getRoute(
             shouldUseMaterialRoute: useMaterialPageRoute,

lib/utilities/block_explorers.dart

@@ -1,6 +1,8 @@
+import 'package:stackwallet/db/isar/main_db.dart';
+import 'package:stackwallet/models/isar/models/block_explorer.dart';
 import 'package:stackwallet/utilities/enums/coin_enum.dart';
 
-Uri getBlockExplorerTransactionUrlFor({
+Uri getDefaultBlockExplorerUrlFor({
   required Coin coin,
   required String txid,
 }) {
@@ -41,3 +43,29 @@ Uri getBlockExplorerTransactionUrlFor({
       return Uri.parse("https://chainz.cryptoid.info/part/tx.dws?$txid.htm");
   }
 }
+
+/// returns internal Isar ID for the inserted object/record
+Future<int> setBlockExplorerForCoin({
+  required Coin coin,
+  required Uri url,
+}) async {
+  return await MainDB.instance.putTransactionBlockExplorer(
+    TransactionBlockExplorer(
+      ticker: coin.ticker,
+      url: url.toString(),
+    ),
+  );
+}
+
+Uri getBlockExplorerTransactionUrlFor({
+  required Coin coin,
+  required String txid,
+}) {
+  String? url = MainDB.instance.getTransactionBlockExplorer(coin: coin)?.url;
+  if (url == null) {
+    return getDefaultBlockExplorerUrlFor(coin: coin, txid: txid);
+  } else {
+    url = url.replaceAll("%5BTXID%5D", txid);
+    return Uri.parse(url);
+  }
+}

lib/widgets/choose_coin_view.dart

@@ -0,0 +1,138 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_svg/svg.dart';
+import 'package:stackwallet/providers/providers.dart';
+import 'package:stackwallet/utilities/assets.dart';
+import 'package:stackwallet/utilities/constants.dart';
+import 'package:stackwallet/utilities/enums/coin_enum.dart';
+import 'package:stackwallet/utilities/text_styles.dart';
+import 'package:stackwallet/utilities/theme/stack_colors.dart';
+import 'package:stackwallet/widgets/background.dart';
+import 'package:stackwallet/widgets/custom_buttons/app_bar_icon_button.dart';
+import 'package:stackwallet/widgets/rounded_white_container.dart';
+
+class ChooseCoinView extends ConsumerStatefulWidget {
+  const ChooseCoinView({
+    Key? key,
+    required this.title,
+    required this.coinAdditional,
+    required this.nextRouteName,
+  }) : super(key: key);
+
+  static const String routeName = "/chooseCoin";
+
+  final String title;
+  final String coinAdditional;
+  final String nextRouteName;
+
+  @override
+  ConsumerState<ChooseCoinView> createState() => _ChooseCoinViewState();
+}
+
+class _ChooseCoinViewState extends ConsumerState<ChooseCoinView> {
+  List<Coin> _coins = [...Coin.values];
+
+  @override
+  void initState() {
+    _coins = _coins.toList();
+    _coins.remove(Coin.firoTestNet);
+    super.initState();
+  }
+
+  @override
+  void dispose() {
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    bool showTestNet = ref.watch(
+      prefsChangeNotifierProvider.select((value) => value.showTestNetCoins),
+    );
+
+    List<Coin> coins = showTestNet
+        ? _coins
+        : _coins.sublist(0, _coins.length - kTestNetCoinCount);
+
+    return Background(
+      child: Scaffold(
+        backgroundColor: Theme.of(context).extension<StackColors>()!.background,
+        appBar: AppBar(
+          leading: AppBarBackButton(
+            onPressed: () {
+              Navigator.of(context).pop();
+            },
+          ),
+          title: Text(
+            widget.title,
+            style: STextStyles.navBarTitle(context),
+          ),
+        ),
+        body: Padding(
+          padding: const EdgeInsets.only(
+            top: 12,
+            left: 12,
+            right: 12,
+          ),
+          child: SingleChildScrollView(
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.stretch,
+              children: [
+                ...coins.map(
+                  (coin) {
+                    return Padding(
+                      padding: const EdgeInsets.all(4),
+                      child: RoundedWhiteContainer(
+                        padding: const EdgeInsets.all(0),
+                        child: RawMaterialButton(
+                          // splashColor: Theme.of(context).extension<StackColors>()!.highlight,
+                          shape: RoundedRectangleBorder(
+                            borderRadius: BorderRadius.circular(
+                              Constants.size.circularBorderRadius,
+                            ),
+                          ),
+                          materialTapTargetSize:
+                              MaterialTapTargetSize.shrinkWrap,
+                          onPressed: () {
+                            Navigator.of(context).pushNamed(
+                              widget.nextRouteName,
+                              arguments: coin,
+                            );
+                          },
+                          child: Padding(
+                            padding: const EdgeInsets.all(12),
+                            child: Row(
+                              children: [
+                                SvgPicture.asset(
+                                  Assets.svg.iconFor(coin: coin),
+                                  width: 24,
+                                  height: 24,
+                                ),
+                                const SizedBox(
+                                  width: 12,
+                                ),
+                                Column(
+                                  crossAxisAlignment: CrossAxisAlignment.start,
+                                  children: [
+                                    Text(
+                                      "${coin.prettyName} ${widget.coinAdditional}",
+                                      style: STextStyles.titleBold12(context),
+                                    ),
+                                  ],
+                                )
+                              ],
+                            ),
+                          ),
+                        ),
+                      ),
+                    );
+                  },
+                ),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}

test/cached_electrumx_test.mocks.dart

@@ -510,6 +510,19 @@ class MockPrefs extends _i1.Mock implements _i5.Prefs {
         returnValueForMissingStub: null,
       );
   @override
+  bool get randomizePIN => (super.noSuchMethod(
+        Invocation.getter(#randomizePIN),
+        returnValue: false,
+      ) as bool);
+  @override
+  set randomizePIN(bool? randomizePIN) => super.noSuchMethod(
+        Invocation.setter(
+          #randomizePIN,
+          randomizePIN,
+        ),
+        returnValueForMissingStub: null,
+      );
+  @override
   bool get useBiometrics => (super.noSuchMethod(
         Invocation.getter(#useBiometrics),
         returnValue: false,

test/electrumx_test.mocks.dart

@@ -231,6 +231,19 @@ class MockPrefs extends _i1.Mock implements _i4.Prefs {
         returnValueForMissingStub: null,
       );
   @override
+  bool get randomizePIN => (super.noSuchMethod(
+        Invocation.getter(#randomizePIN),
+        returnValue: false,
+      ) as bool);
+  @override
+  set randomizePIN(bool? randomizePIN) => super.noSuchMethod(
+        Invocation.setter(
+          #randomizePIN,
+          randomizePIN,
+        ),
+        returnValueForMissingStub: null,
+      );
+  @override
   bool get useBiometrics => (super.noSuchMethod(
         Invocation.getter(#useBiometrics),
         returnValue: false,

test/pages/send_view/send_view_test.mocks.dart

@@ -2350,6 +2350,19 @@ class MockPrefs extends _i1.Mock implements _i24.Prefs {
         returnValueForMissingStub: null,
       );
   @override
+  bool get randomizePIN => (super.noSuchMethod(
+        Invocation.getter(#randomizePIN),
+        returnValue: false,
+      ) as bool);
+  @override
+  set randomizePIN(bool? randomizePIN) => super.noSuchMethod(
+        Invocation.setter(
+          #randomizePIN,
+          randomizePIN,
+        ),
+        returnValueForMissingStub: null,
+      );
+  @override
   bool get useBiometrics => (super.noSuchMethod(
         Invocation.getter(#useBiometrics),
         returnValue: false,

test/screen_tests/exchange/exchange_view_test.mocks.dart

@@ -181,6 +181,19 @@ class MockPrefs extends _i1.Mock implements _i3.Prefs {
         returnValueForMissingStub: null,
       );
   @override
+  bool get randomizePIN => (super.noSuchMethod(
+        Invocation.getter(#randomizePIN),
+        returnValue: false,
+      ) as bool);
+  @override
+  set randomizePIN(bool? randomizePIN) => super.noSuchMethod(
+        Invocation.setter(
+          #randomizePIN,
+          randomizePIN,
+        ),
+        returnValueForMissingStub: null,
+      );
+  @override
   bool get useBiometrics => (super.noSuchMethod(
         Invocation.getter(#useBiometrics),
         returnValue: false,

test/widget_tests/node_options_sheet_test.mocks.dart

@@ -419,6 +419,19 @@ class MockPrefs extends _i1.Mock implements _i12.Prefs {
         returnValueForMissingStub: null,
       );
   @override
+  bool get randomizePIN => (super.noSuchMethod(
+        Invocation.getter(#randomizePIN),
+        returnValue: false,
+      ) as bool);
+  @override
+  set randomizePIN(bool? randomizePIN) => super.noSuchMethod(
+        Invocation.setter(
+          #randomizePIN,
+          randomizePIN,
+        ),
+        returnValueForMissingStub: null,
+      );
+  @override
   bool get useBiometrics => (super.noSuchMethod(
         Invocation.getter(#useBiometrics),
         returnValue: false,

test/widget_tests/transaction_card_test.mocks.dart

@@ -2282,6 +2282,19 @@ class MockPrefs extends _i1.Mock implements _i19.Prefs {
         returnValueForMissingStub: null,
       );
   @override
+  bool get randomizePIN => (super.noSuchMethod(
+        Invocation.getter(#randomizePIN),
+        returnValue: false,
+      ) as bool);
+  @override
+  set randomizePIN(bool? randomizePIN) => super.noSuchMethod(
+        Invocation.setter(
+          #randomizePIN,
+          randomizePIN,
+        ),
+        returnValueForMissingStub: null,
+      );
+  @override
   bool get useBiometrics => (super.noSuchMethod(
         Invocation.getter(#useBiometrics),
         returnValue: false,