41 lines
1 KiB
C#
41 lines
1 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Text.Json;
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using System.Threading.Tasks;
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using TodoDetails.Model;
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namespace TodoDetails.Services
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{
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public class TodoService
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{
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Lazy<Task<List<Todo>>> todoList;
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public TodoService()
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{
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todoList = new Lazy<Task<List<Todo>>>(
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async () =>
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{
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List<Todo>? result = null;
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using var stream = await FileSystem.OpenAppPackageFileAsync("tododata.json");
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using var reader = new StreamReader(stream);
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var contents = await reader.ReadToEndAsync();
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if (contents != null)
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{
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result = JsonSerializer.Deserialize<List<Todo>>(contents);
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}
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return result ?? new();
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});
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}
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public async Task<List<Todo>> GetTodos()
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{
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return await todoList.Value;
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}
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}
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}
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