148 lines
4.7 KiB
Dart
148 lines
4.7 KiB
Dart
import 'package:easy_localization/easy_localization.dart';
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import 'package:flutter/material.dart';
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import 'package:gecko/globals.dart';
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import 'package:gecko/models/queries_indexer.dart';
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import 'package:gecko/models/widgets_keys.dart';
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import 'package:gecko/providers/duniter_indexer.dart';
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import 'package:gecko/widgets/history_view.dart';
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import 'package:graphql_flutter/graphql_flutter.dart';
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import 'package:provider/provider.dart';
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class HistoryQuery extends StatelessWidget {
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const HistoryQuery({Key? key, required this.address}) : super(key: key);
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final String address;
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@override
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Widget build(BuildContext context) {
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final duniterIndexer = Provider.of<DuniterIndexer>(context, listen: false);
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final ScrollController scrollController = ScrollController();
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FetchMoreOptions? opts;
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int nPage = 1;
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int nRepositories = 20;
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if (indexerEndpoint == '') {
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return Column(children: <Widget>[
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const SizedBox(height: 50),
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Text(
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"noNetworkNoHistory".tr(),
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textAlign: TextAlign.center,
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style: const TextStyle(fontSize: 18),
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)
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]);
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}
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final httpLink = HttpLink(
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'$indexerEndpoint/v1beta1/relay',
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);
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final client = ValueNotifier(
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GraphQLClient(
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cache: GraphQLCache(),
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link: httpLink,
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),
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);
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return GraphQLProvider(
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client: client,
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child: Expanded(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.start,
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mainAxisSize: MainAxisSize.max,
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children: <Widget>[
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Query(
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options: QueryOptions(
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document: gql(getHistoryByAddressQ),
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variables: <String, dynamic>{
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'address': address,
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'number': 20,
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'cursor': null
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},
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),
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builder: (QueryResult result, {fetchMore, refetch}) {
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if (result.isLoading && result.data == null) {
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return const Center(
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child: CircularProgressIndicator(
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color: orangeC,
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),
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);
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}
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if (result.hasException) {
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log.e('Error Indexer: ${result.exception}');
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return Column(children: <Widget>[
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const SizedBox(height: 50),
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Text(
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"noNetworkNoHistory".tr(),
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textAlign: TextAlign.center,
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style: const TextStyle(fontSize: 18),
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)
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]);
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} else if (result
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.data?['transaction_connection']?['edges'].isEmpty) {
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return Column(children: <Widget>[
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const SizedBox(height: 50),
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Text(
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"noDataToDisplay".tr(),
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style: const TextStyle(fontSize: 18),
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)
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]);
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}
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if (result.isNotLoading) {
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if (duniterIndexer.fetchMoreCursor == null) nPage = 1;
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// log.d('nPage: $nPage');
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if (nPage <= 3) {
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nRepositories = 20;
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} else if (nPage <= 6) {
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nRepositories = 40;
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} else if (nPage <= 12) {
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nRepositories = 80;
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} else {
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nRepositories = 120;
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}
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nPage++;
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opts = duniterIndexer.mergeQueryResult(
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result, opts, address, nRepositories);
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}
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// Build history list
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return NotificationListener(
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child: Builder(
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builder: (context) => Expanded(
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child: ListView(
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key: keyListTransactions,
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controller: scrollController,
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children: <Widget>[
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HistoryView(
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result: result,
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address: address,
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)
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],
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),
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),
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),
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onNotification: (dynamic t) {
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if (duniterIndexer.pageInfo == null) {
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duniterIndexer.reload();
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}
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if (t is ScrollEndNotification &&
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scrollController.position.pixels >=
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scrollController.position.maxScrollExtent * 0.7 &&
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duniterIndexer.pageInfo!['hasNextPage'] &&
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result.isNotLoading) {
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fetchMore!(opts!);
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}
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return true;
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});
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},
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),
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],
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)),
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);
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}
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}
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