BeWoPlaner/BeWoDatabaseTerminator/BeWoDatabaseTerminator/Data/ContractStatusCollectionJsonConverter.cs

using System;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

namespace BeWoDatabaseTerminator.Data
{
    /// <summary>
    /// Stellt den JsonConverter für die Klasse 'ContractStatus' dar.
    /// </summary>
    public class ContractStatusCollectionJsonConverter : JsonConverter
    {
        public override bool CanConvert(Type objectType)
        {
            return objectType == typeof(ContractStatusCollection);
        }

        public override object ReadJson(JsonReader jsonReader, Type objectType, object existingValue, JsonSerializer jsonSerializer)
        {
            var jsonObject = JObject.Load(jsonReader);

            var contractStatusCollection = new ContractStatusCollection();

            var children = jsonObject.Children<JProperty>();

            foreach(var jProperty in children)
            {
                var contractStatus = new ContractStatus
                {
                    Tenant = jProperty.Name
                };

                if(jProperty.Value is JObject jObject)
                {
                    foreach(var jProp in jObject.Children<JProperty>())
                    {
                        switch(jProp.Name)
                        {
                            case "licensetypeid":
                                if(int.TryParse(jProp.Value.ToString(), out var licenseTypeId))
                                {
                                    contractStatus.LicenseTypeId = licenseTypeId;
                                }
                                break;
                            case "activate":
                                if(int.TryParse(jProp.Value.ToString(), out var activate))
                                {
                                    contractStatus.Activate = activate;
                                }
                                break;
                            case "deactivate":
                                if(int.TryParse(jProp.Value.ToString(), out var deactivate))
                                {
                                    contractStatus.Deactivate = deactivate;
                                }
                                break;
                            case "delete":
                                if(int.TryParse(jProp.Value.ToString(), out var delete))
                                {
                                    contractStatus.Delete = delete;
                                }
                                break;
                        }
                    }
                }

                contractStatusCollection.ContractStatuses.Add(contractStatus.Tenant, contractStatus);
            }

            return contractStatusCollection;
        }

        public override bool CanWrite => false;

        public override void WriteJson(JsonWriter jsonWriter, object value, JsonSerializer jsonSerializer)
        {
            throw new NotImplementedException("Es werden nur Json-Daten vom Server verarbeitet, nicht aber zurückgeschickt.");
        }
    }
}