92 lines
2.8 KiB
C#
92 lines
2.8 KiB
C#
using Newtonsoft.Json;
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using System;
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using System.Collections.Generic;
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using System.Runtime.Serialization.Formatters;
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using System.Text;
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using TelegramBotBase.Args;
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using TelegramBotBase.Base;
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using TelegramBotBase.Form;
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using TelegramBotBase.Interfaces;
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namespace TelegramBotBase.States
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{
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/// <summary>
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/// Is used for simple object structures like classes, lists or basic datatypes without generics and other compiler based data types.
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/// </summary>
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public class SimpleJSONStateMachine : IStateMachine
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{
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public String FilePath { get; set; }
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public bool Overwrite { get; set; }
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public Type FallbackStateForm { get; private set; }
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/// <summary>
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/// Will initialize the state machine.
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/// </summary>
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/// <param name="file">Path of the file and name where to save the session details.</param>
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/// <param name="fallbackStateForm">Type of Form which will be saved instead of Form which has <seealso cref="Attributes.IgnoreState"/> attribute declared. Needs to be subclass of <seealso cref="Form.FormBase"/>.</param>
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/// <param name="overwrite">Declares of the file could be overwritten.</param>
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public SimpleJSONStateMachine(String file, Type fallbackStateForm = null, bool overwrite = true)
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{
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if (file is null)
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{
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throw new ArgumentNullException(nameof(file));
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}
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this.FallbackStateForm = fallbackStateForm;
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if (this.FallbackStateForm != null && !this.FallbackStateForm.IsSubclassOf(typeof(FormBase)))
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{
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throw new ArgumentException("FallbackStateForm is not a subclass of FormBase");
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}
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this.FilePath = file;
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this.Overwrite = overwrite;
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}
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public StateContainer LoadFormStates()
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{
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try
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{
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var content = System.IO.File.ReadAllText(FilePath);
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var sc = Newtonsoft.Json.JsonConvert.DeserializeObject<StateContainer>(content) as StateContainer;
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return sc;
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}
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catch
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{
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}
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return new StateContainer();
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}
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public void SaveFormStates(SaveStatesEventArgs e)
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{
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if (System.IO.File.Exists(FilePath))
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{
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if (!this.Overwrite)
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{
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throw new Exception("File exists already.");
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}
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System.IO.File.Delete(FilePath);
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}
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try
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{
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var content = Newtonsoft.Json.JsonConvert.SerializeObject(e.States, Formatting.Indented);
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System.IO.File.WriteAllText(FilePath, content);
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}
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catch
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{
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}
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}
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}
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}
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