64 lines
2.1 KiB
C#
64 lines
2.1 KiB
C#
using Pilz.Extensions.Reflection;
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using Pilz.Net.Data;
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using Pilz.Net.Extensions;
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using System.Diagnostics;
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using System.Linq.Expressions;
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using System.Reflection;
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using System.Runtime.CompilerServices;
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namespace Pilz.Net.Api.Server;
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public abstract class BaseHandler<TEntity, TUpdateMsg>(IApiServer server)
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: IApiHandlerInitializer
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where TEntity : IDataObject
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where TUpdateMsg : ApiMessage
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{
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public abstract string Route { get; }
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protected virtual bool RegisterGet => true;
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protected virtual bool RegisterPut => true;
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protected virtual bool RegisterDelete => true;
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public virtual void Initialize(IApiServer server)
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{
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var t = GetType();
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if (RegisterGet)
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server.RegisterHandler(t.GetMethod(nameof(Get))!.CreateDelegate(this), new(Route + "/{id}", "GET"), Debugger.IsAttached);
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if (RegisterPut)
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server.RegisterHandler(t.GetMethod(nameof(Put))!.CreateDelegate(this), new(Route + "/{id}", "PUT"), Debugger.IsAttached);
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if (RegisterDelete)
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server.RegisterHandler(t.GetMethod(nameof(Delete))!.CreateDelegate(this), new(Route + "/{id}", "DELETE"), Debugger.IsAttached);
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}
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public virtual ApiResult Get(int id)
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{
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if (!server.Manager.Find(id, out TEntity? entity))
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return ApiResult.NotFound();
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return ToClient(entity).ToItemResult();
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}
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public virtual ApiResult Put(int id, TUpdateMsg msg)
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{
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if (!server.Manager.Find(id, out TEntity? entity))
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return ApiResult.NotFound();
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if (UpdateEntity(entity, msg) is ApiResult result)
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return result;
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server.Manager.Save(entity, true);
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return ToClient(entity).ToItemResult();
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}
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public virtual ApiResult Delete(int id)
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{
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server.Manager.Delete<TEntity>(id, true);
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return ApiResult.Ok();
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}
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protected virtual TEntity CreateNewEntity()
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{
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return Activator.CreateInstance<TEntity>();
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}
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protected abstract ApiResult? UpdateEntity(TEntity entity, TUpdateMsg msg);
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protected abstract IDataObject ToClient(TEntity entity);
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}
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