using System.IO;
using INetMock.Client.Audit;
using INetMock.Client.Audit.Serialization;
using INetMock.Client.Test.Hex;
using Xunit;

namespace INetMock.Client.Test.Audit.Serialization
{
    public class GenericReaderTest
    {
        private const string HttpEventPayload = "000000e5120b088092b8c398feffffff01180120022a047f00000132047f00000138d8fc0140504a3308041224544c535f45434448455f45434453415f574954485f4145535f3235365f4342435f5348411a096c6f63616c686f7374528a010a3c747970652e676f6f676c65617069732e636f6d2f696e65746d6f636b2e61756469742e64657461696c732e4854545044657461696c73456e74697479124a12096c6f63616c686f73741a15687474703a2f2f6c6f63616c686f73742f6173646622084854545020312e312a1c0a0641636365707412120a106170706c69636174696f6e2f6a736f6e";
        private const string DnsEventPayload = "0000003b120b088092b8c398feffffff01180120012a100000000000000000000000000000000132100000000000000000000000000000000138d8fc014050";

        private readonly byte[] _httpEventPayloadBytes;
        private readonly byte[] _dnsEventPayloadBytes;

        public GenericReaderTest()
        {
            _httpEventPayloadBytes = HttpEventPayload.HexToByteArray();
            _dnsEventPayloadBytes = DnsEventPayload.HexToByteArray();
        }

        [Fact]
        public async void TestRead_HttpEvent_Success()
        {
            await using var protoReader = new ProtoReader(new MemoryStream(_httpEventPayloadBytes));
            await using IEventReader<GenericDetails> reader = new GenericReader(protoReader);
            await foreach (var ev in reader.ReadAllAsync())
            {
                Assert.NotNull(ev);
                
                Assert.True(ev.CanConvert<HttpDetails>());
                Assert.False(ev.CanConvert<DnsDetails>());
                
                var httpEvent = (Event<HttpDetails>?) ev;
                var dnsEvent = (Event<DnsDetails>?) ev;

                Assert.NotNull(httpEvent);
                Assert.Null(dnsEvent);
            }
        }
        
        [Fact]
        public async void TestRead_DnsEvent_Success()
        {
            await using var memStream = new MemoryStream(_dnsEventPayloadBytes);
            await using var protoReader = new ProtoReader(new MemoryStream(_dnsEventPayloadBytes));
            await using IEventReader<GenericDetails> reader = new GenericReader(protoReader);
            await foreach (var ev in reader.ReadAllAsync())
            {
                Assert.NotNull(ev);
                Assert.True(ev.CanConvert<DnsDetails>());
                var dnsEvent = (Event<DnsDetails>?) ev;
                Assert.NotNull(dnsEvent);
            }
        }
    }
}