using System;
using BililiveRecorder.Flv.Amf;
using FluentAssertions;
using Xunit;

namespace BililiveRecorder.Flv.UnitTests.Amf
{
    public class AmfTests
    {
        private static ScriptTagBody CreateTestObject() => new ScriptTagBody
        {
            Name = "test",
            Value = new ScriptDataObject
            {
                ["bool_true"] = (ScriptDataBoolean)true,
                ["bool_false"] = (ScriptDataBoolean)false,
                ["date1"] = (ScriptDataDate)DateTimeOffset.FromUnixTimeMilliseconds(DateTimeOffset.UtcNow.ToUnixTimeMilliseconds()), // remove extra precision
                ["date2"] = (ScriptDataDate)new DateTimeOffset(2345, 3, 14, 7, 8, 9, 12, TimeSpan.FromHours(4)),
                ["ecmaarray"] = new ScriptDataEcmaArray
                {
                    ["element1"] = (ScriptDataString)"element1",
                    ["element2"] = (ScriptDataString)"element2",
                    ["element3"] = (ScriptDataString)"element3",
                },
                ["longstring1"] = (ScriptDataLongString)"longstring1",
                ["longstring2"] = (ScriptDataLongString)"longstring2",
                ["null"] = new ScriptDataNull(),
                ["number1"] = (ScriptDataNumber)0,
                ["number2"] = (ScriptDataNumber)197653.845,
                ["number3"] = (ScriptDataNumber)(-95.7),
                ["number4"] = (ScriptDataNumber)double.Epsilon,
                ["strictarray"] = new ScriptDataStrictArray
                    {
                        (ScriptDataString)"element1",
                        (ScriptDataString)"element2",
                        (ScriptDataString)"element3",
                    },
                ["string1"] = (ScriptDataString)"string1",
                ["string2"] = (ScriptDataString)"string2",
                ["undefined"] = new ScriptDataUndefined(),
            },
        };

        [Fact]
        public void EqualAfterJsonSerialization()
        {
            var body = CreateTestObject();
            var json = body.ToJson();
            var body2 = ScriptTagBody.Parse(json);
            var json2 = body2.ToJson();

            body2.Should().BeEquivalentTo(body, options => options.RespectingRuntimeTypes());
            json2.Should().Be(json);
        }

        [Fact]
        public void EqualAfterBinarySerialization()
        {
            var body = CreateTestObject();
            var bytes = body.ToBytes();
            var body2 = ScriptTagBody.Parse(bytes);
            var bytes2 = body2.ToBytes();

            body2.Should().BeEquivalentTo(body, options => options.RespectingRuntimeTypes());
            bytes2.Should().BeEquivalentTo(bytes2, options => options.RespectingRuntimeTypes());
        }

        [Fact]
        public void EqualAfterMixedSerialization()
        {
            var original = CreateTestObject();

            var a_json = original.ToJson();
            var a_body = ScriptTagBody.Parse(a_json);
            var a_byte = a_body.ToBytes();

            var b_byte = original.ToBytes();
            var b_body = ScriptTagBody.Parse(b_byte);
            var b_json = b_body.ToJson();

            b_json.Should().Be(a_json);
            a_byte.Should().BeEquivalentTo(b_byte);

            a_body.Should().BeEquivalentTo(original, options => options.RespectingRuntimeTypes());
            b_body.Should().BeEquivalentTo(original, options => options.RespectingRuntimeTypes());
            a_body.Should().BeEquivalentTo(b_body, options => options.RespectingRuntimeTypes());
        }
    }
}