using System;
using NAMESPACEPLACEHOLDER.Model;
using Newtonsoft.Json;

namespace NAMESPACEPLACEHOLDER.Client {
    /// <summary>
    /// Extended API Exception, provides ErrorCode (http code), ServiceErrorCode (service
    /// specific error code), status message (via super class ApiException), help link 
    /// (also via super class ApiException) and offensive data via properties of the exception 
    /// itself.
    /// Usually when openapi specificiation provided ErrorResultObject type for endpoints 
    /// which returns an object of that type in case of errors greater or equal then 400,
    /// in particular for 400 and 500.
    /// To use this Extended API Exception set the ExceptionFactory immediately after
    /// instantiating the API object to ExtApiException.ExtExceptionFactory.
    /// </summary>
    public class ExtApiException: ApiException {
        /// <summary>
        /// ErrorCode, this is the http code returned by the webservice
        /// readonly property
        /// </summary>
        public int ErrorCode { get; }
        /// <summary>
        /// ServiceErrorCode, this is the service specific error code, compare to the
        /// serviceErrorCodes.yaml in the webservice project
        /// readonly property
        /// </summary>
        public int ServiceErrorCode { get; }
        /// <summary>
        /// OffensiveData, repeats the data sent to the webservice which led to this
        /// particular error
        /// readonly property
        /// </summary>
        public String OffensiveData { get; }
        
        public ExtApiException(ErrorResultObject ero): base(ero.errorCode, ero.errorMessage, ero) {
            ErrorCode = ero.errorCode;
            ServiceErrorCode = ero.serviceErrorCode;
            OffensiveData = ero.offensiveData;
        }
        
        /// <summary>
        /// ExceptionFactory to transform the http response of errors from the webservice into the
        /// ExtApiException
        /// Set it immediately after instantiating the API object within the new object.
        /// </summary>
        public static ExceptionFactory ExtExceptionFactory = (methodName, response) => {
            return (((int)response.StatusCode) >= 400) ? new ExtApiException(JsonConvert.DeserializeObject<ErrorResultObject>(response.RawContent)) : null;
        };
    }
}