Pear-Trading/LocalSpend-Tracker
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Graphs properly rendered and fetched

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This commit is contained in:
Felix 2019-08-16 16:44:24 +01:00
parent 94150ddd76
commit fdb6a5c69b
2 changed files with 182 additions and 55 deletions
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132
lib/common/apifunctions/get_graph_data.dart
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@ -5,25 +5,34 @@ import 'package:shared_preferences/shared_preferences.dart';
import 'package:charts_flutter/flutter.dart' as charts;
class GraphData {
List<charts.Series> data = new List<charts.Series>();
var chartType;
List<charts.Series<dynamic, DateTime>> graph;
Future<List<charts.Series<dynamic, DateTime>>> getGraphData(String graphType) async {
// print("called");
/// Graph types:
/// - total_last_week
/// - avg_spend_last_week
/// - total_last_month
/// - avg_spend_last_month
///
/// HTTP POST request sample:
/// {"graph":"total_last_week","session_key":"blahblahblah"}
GraphData(
this.chartType,
);
List<TimeSeriesSpend> cachedData;
bool loaded = false;
Future<void> setGraphData() async {
if (loaded == true) {
this.graph = [
new charts.Series<TimeSeriesSpend, DateTime>(
id: 'Spend',
colorFn: (_, __) => charts.MaterialPalette.blue.shadeDefault,
domainFn: (TimeSeriesSpend spend, _) => spend.time,
measureFn: (TimeSeriesSpend spend, _) => spend.spend,
data: cachedData,
)
];
}
charts.Series<dynamic, DateTime> dataSeries = new charts.Series<dynamic, DateTime>();
final url = "https://dev.peartrade.org/api/v1/customer/graphs";
SharedPreferences preferences = await SharedPreferences.getInstance();
Map<String, String> body = {
'graph': graphType,
'graph': this.chartType,
'session_key': preferences.get('LastToken'),
};
@ -37,29 +46,82 @@ class GraphData {
final List<dynamic> labels = responseJson['graph']['labels'];
final List<dynamic> data = responseJson['graph']['data'];
for (int i = 0; i < data.length; i++) {
// print(labels[i].toString() + " : " + data[i].toString());
}
// final List<String> bounds = responseJson['graph']['bounds']; // why is this even returned?
List<TimeSeriesSpend> timeSeriesSpendList = new List<TimeSeriesSpend>();
/*
final data = [
new TimeSeriesSales(new DateTime(2017, 9, 19), 5),
new TimeSeriesSales(new DateTime(2017, 9, 26), 25),
new TimeSeriesSales(new DateTime(2017, 10, 3), 100),
new TimeSeriesSales(new DateTime(2017, 10, 10), 75),
for (int i = 0; i < labels.length; i++) {
timeSeriesSpendList.add(new TimeSeriesSpend(data[i]*1.00, DateTime.parse(labels[i])));
// print(timeSeriesSpendList[i].time.toString() + " : " + timeSeriesSpendList[i].spend.toString());
}
cachedData = timeSeriesSpendList;
loaded = true;
this.graph = [
new charts.Series<TimeSeriesSpend, DateTime>(
id: 'Spend',
colorFn: (_, __) => charts.MaterialPalette.blue.shadeDefault,
domainFn: (TimeSeriesSpend spend, _) => spend.time,
measureFn: (TimeSeriesSpend spend, _) => spend.spend,
data: timeSeriesSpendList,
)
];
*/
} else {
final errorMessage = json.decode(response.body)['message'];
print("Error: " + errorMessage);
this.graph = null;
}
}
Future<List<charts.Series<dynamic, DateTime>>> getGraphData() async {
if (loaded == true) {
return [
new charts.Series<TimeSeriesSpend, DateTime>(
id: 'Spend',
colorFn: (_, __) => charts.MaterialPalette.blue.shadeDefault,
domainFn: (TimeSeriesSpend spend, _) => spend.time,
measureFn: (TimeSeriesSpend spend, _) => spend.spend,
data: cachedData,
)
];
}
/// Graph types:
/// - total_last_week
/// - avg_spend_last_week
/// - total_last_month
/// - avg_spend_last_month
///
/// HTTP POST request sample:
/// {"graph":"total_last_week","session_key":"blahblahblah"}
final url = "https://dev.peartrade.org/api/v1/customer/graphs";
SharedPreferences preferences = await SharedPreferences.getInstance();
Map<String, String> body = {
'graph': this.chartType,
'session_key': preferences.get('LastToken'),
};
final response = await http.post(
url,
body: json.encode(body),
);
if (response.statusCode == 200) {
final responseJson = jsonDecode(response.body);
final List<dynamic> labels = responseJson['graph']['labels'];
final List<dynamic> data = responseJson['graph']['data'];
List<TimeSeriesSpend> timeSeriesSpendList = new List<TimeSeriesSpend>();
for (int i = 0; i < labels.length; i++) {
// print(DateTime.parse(labels[i]));
timeSeriesSpendList.add(new TimeSeriesSpend(i, DateTime(i)));
// timeSeriesSpendList.add(new TimeSeriesSpend(data[i], DateTime.parse(labels[i])));
timeSeriesSpendList.add(new TimeSeriesSpend(data[i]*1.00, DateTime.parse(labels[i])));
// print(timeSeriesSpendList[i].time.toString() + " : " + timeSeriesSpendList[i].spend.toString());
}
// print(timeSeriesSpendList);
cachedData = timeSeriesSpendList;
loaded = true;
return [
new charts.Series<TimeSeriesSpend, DateTime>(
@ -70,18 +132,6 @@ class GraphData {
data: timeSeriesSpendList,
)
];
/*
new charts.Series<TimeSeriesSales, DateTime>(
id: 'Sales',
colorFn: (_, __) => charts.MaterialPalette.blue.shadeDefault,
domainFn: (TimeSeriesSales sales, _) => sales.time,
measureFn: (TimeSeriesSales sales, _) => sales.sales,
data: data,
)*/
// print(labels[5]);
// print(data[5]);
} else {
final errorMessage = json.decode(response.body)['message'];
print("Error: " + errorMessage);
@ -95,7 +145,7 @@ class GraphData {
class TimeSeriesSpend {
final DateTime time;
final int spend;
final double spend;
TimeSeriesSpend(this.spend, this.time);
}