calorimeter/lib/storage/storage.dart

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2024-06-09 17:06:10 +00:00
import 'dart:io';
import 'package:kalodings/food_entry_bloc.dart';
import 'package:path_provider/path_provider.dart';
class FoodStorage {
late String path;
FoodStorage._create();
static Future<FoodStorage> create() async {
var storage = FoodStorage._create();
var directory = await getApplicationCacheDirectory();
storage.path = directory.path;
return storage;
}
Future<List<FoodEntry>> getEntriesForDate(DateTime date) async {
List<FoodEntry> entries = [];
var filePath = '$path/${date.year}/${date.month}/${date.day}';
var file = File(filePath);
var exists = await file.exists();
if (!exists) return [];
var lines = await file.readAsLines();
for (var line in lines) {
var fields = line.split(',');
var entry = FoodEntry(
name: fields[1],
mass: double.parse(fields[2]),
kcalPerMass: double.parse(fields[3]));
entries.add(entry);
}
return entries;
}
Future<void> writeEntriesForDate(
DateTime date, List<FoodEntry> foodEntries) async {
var filePath = '$path/${date.year}/${date.month}/${date.day}';
var file = File(filePath);
var exists = await file.exists();
if (!exists) {
await file.create(recursive: true);
}
String fullString = '';
for (var entry in foodEntries) {
fullString += '${entry.toString()}\n';
}
await file.writeAsString(fullString);
}
}