using BuddyFinance.Integration.Logging;
using BuddyFinance.Integration.Models;
using BuddyFinance.Integration.Models.Enums;
using System.Data.Entity.Validation;
using System.Net.Http;
using System.Text;
using System.Web;
using System.Web.Http.Filters;

namespace BuddyFinance.WebApi.Filters
{
    /// <summary>
    /// 
    /// </summary>
    public class LogExceptionAttribute : ExceptionFilterAttribute
    {
        /// <summary>
        /// 
        /// </summary>
        /// <param name="actionExecutedContext"></param>
        public override void OnException(HttpActionExecutedContext actionExecutedContext)
        {
            var exceptionStr = new StringBuilder();

            if (actionExecutedContext.Exception is DbEntityValidationException)
            {
                foreach (var entityValidationError in ((DbEntityValidationException)actionExecutedContext.Exception).EntityValidationErrors)
                {
                    exceptionStr.AppendLine($"Entity of type \"{entityValidationError.Entry.Entity.GetType().Name}\" in state \"{entityValidationError.Entry.State}\" has the following validation errors:");

                    foreach (var ve in entityValidationError.ValidationErrors)
                    {
                        exceptionStr.AppendLine($"- Property: \"{ve.PropertyName}\", Error: \"{ve.ErrorMessage}\"");
                    }
                }

                exceptionStr.AppendFormat(actionExecutedContext.Exception.ToString());
            }
            else
            {
                exceptionStr.AppendFormat(actionExecutedContext.Exception.ToString());
            }

            var action = actionExecutedContext.ActionContext.ActionDescriptor.ActionName;
            var contoller = actionExecutedContext.ActionContext.ActionDescriptor.ControllerDescriptor.ControllerName;

            Logger.Log(
                 LogTypeEnum.Error,
                 $"Error Excecuting action '{action}' in controller '{contoller}', Exception: '{actionExecutedContext.Exception.Message}. \n\n {exceptionStr}'",
                 null,
                 actionExecutedContext.ActionContext.Request.GetOwinContext().Request.RemoteIpAddress,
                 actionExecutedContext.ActionContext.Request.Headers.UserAgent.ToString());

            var result = new BaseResult<object>
            {
                ErrorCode = (int)ResponseCodes.Exception,
                ErrorMessage = actionExecutedContext.Exception.Message,
                Result = null
            };

            actionExecutedContext.Response = actionExecutedContext.Request.CreateResponse(result);

            //base.OnException(actionExecutedContext);
        }
    }
}