using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.Text;

namespace Newtonsoft.Json.Tests.Documentation.Samples.Serializer
{
    public class SerializationCallbackAttributes
    {
        #region Types
        public class SerializationEventTestObject
        {
            // 2222
            // This member is serialized and deserialized with no change.
            public int Member1 { get; set; }

            // The value of this field is set and reset during and 
            // after serialization.
            public string Member2 { get; set; }

            // This field is not serialized. The OnDeserializedAttribute 
            // is used to set the member value after serialization.
            [JsonIgnore]
            public string Member3 { get; set; }

            // This field is set to null, but populated after deserialization.
            public string Member4 { get; set; }

            public SerializationEventTestObject()
            {
                Member1 = 11;
                Member2 = "Hello World!";
                Member3 = "This is a nonserialized value";
                Member4 = null;
            }

            [OnSerializing]
            internal void OnSerializingMethod(StreamingContext context)
            {
                Member2 = "This value went into the data file during serialization.";
            }

            [OnSerialized]
            internal void OnSerializedMethod(StreamingContext context)
            {
                Member2 = "This value was reset after serialization.";
            }

            [OnDeserializing]
            internal void OnDeserializingMethod(StreamingContext context)
            {
                Member3 = "This value was set during deserialization";
            }

            [OnDeserialized]
            internal void OnDeserializedMethod(StreamingContext context)
            {
                Member4 = "This value was set after deserialization.";
            }
        }
        #endregion

        public void Example()
        {
            #region Usage
            SerializationEventTestObject obj = new SerializationEventTestObject();

            Console.WriteLine(obj.Member1);
            // 11
            Console.WriteLine(obj.Member2);
            // Hello World!
            Console.WriteLine(obj.Member3);
            // This is a nonserialized value
            Console.WriteLine(obj.Member4);
            // null

            string json = JsonConvert.SerializeObject(obj, Formatting.Indented);
            // {
            //   "Member1": 11,
            //   "Member2": "This value went into the data file during serialization.",
            //   "Member4": null
            // }

            Console.WriteLine(obj.Member1);
            // 11
            Console.WriteLine(obj.Member2);
            // This value was reset after serialization.
            Console.WriteLine(obj.Member3);
            // This is a nonserialized value
            Console.WriteLine(obj.Member4);
            // null

            obj = JsonConvert.DeserializeObject<SerializationEventTestObject>(json);

            Console.WriteLine(obj.Member1);
            // 11
            Console.WriteLine(obj.Member2);
            // This value went into the data file during serialization.
            Console.WriteLine(obj.Member3);
            // This value was set during deserialization
            Console.WriteLine(obj.Member4);
            // This value was set after deserialization.
            #endregion
        }
    }
}