using System;
using System.Net;
using System.Net.Http;

namespace Sony.Filtr.ApolloAPI
{
    public class ApolloWebAPIException : Exception
    {
        public ApolloWebAPIException(string message) : this(message, String.Empty, HttpStatusCode.OK, String.Empty, String.Empty, String.Empty) { }

        public ApolloWebAPIException(string message, string method, HttpStatusCode statusCode, string reason, string requestUri, string rawResponse) : base(message)
        {
            this.StatusCode = statusCode;
            this.Method = method;
            this.Reason = reason;
            this.RequestUri = requestUri;
            this.RawResponse = rawResponse;
        }

        public ApolloWebAPIException(string message, Exception ex) : base(message, ex) { }

        public readonly HttpStatusCode StatusCode;
        public readonly string Reason;
        public readonly string Method;
        public readonly string RequestUri;
        public readonly string RawResponse;

        public static ApolloWebAPIException FromHttpResponseMessage(HttpResponseMessage httpResponse)
        {
            if (httpResponse == null)
            {
                throw new ArgumentNullException(nameof(httpResponse));
            }

            string method = httpResponse.RequestMessage == null ? String.Empty : httpResponse.RequestMessage.Method.ToString();
            string requestUri = httpResponse.RequestMessage == null ? String.Empty : httpResponse.RequestMessage.RequestUri.ToString();
            string rawResponse = httpResponse.Content.ReadAsStringAsync().Result;

            string message = $"StatusCode: {httpResponse.StatusCode}. " +
                             $"Reason: {httpResponse.ReasonPhrase}. " +
                             $"Method: {method}. " +
                             $"RequestUri: {requestUri}. " +
                             $"Original response: {rawResponse}. ";

            return new ApolloWebAPIException(
                message,
                method,
                httpResponse.StatusCode,
                httpResponse.ReasonPhrase,
                requestUri,
                rawResponse);
        }
    }
}