// Copyright (c) The LEGO Group. All rights reserved.

namespace LEGO.AsyncAPI.Tests.Writers
{
    using LEGO.AsyncAPI.Writers;
    using NUnit.Framework;
    using System;
    using System.IO;

    internal class AsyncApiYamlWriterTests : TestBase
    {
        [Test]
        public void Write_NullValue_ReturnsNull()
            => this.Compose(null, "null");

        [Test]
        public void Write_EmptyValue_ReturnsNull()
            => this.Compose(string.Empty, "''");

        [Test]
        public void Write_NullWordString_ReturnsWrappedValue()
            => this.Compose("null", "'null'");

        [Test]
        public void Write_TildaWordString_ReturnsWrappedValue()
              => this.Compose("~", "'~'");

        [Test]
        public void Write_IntegerWithTwoPeriods_RendersPlainStyle()
            => this.Compose("1.2.3", "1.2.3");

        [Test]
        public void Write_Float_WrappedWithQuotes()
            => this.Compose("1.2", "'1.2'");

        [Test]
        public void Write_PositiveFloat_WrappedWithQuotes()
            => this.Compose("+1.2", "'+1.2'");

        [Test]
        public void Write_NegativeFloat_WrappedWithQuotes()
               => this.Compose("-1.2", "'-1.2'");

        [Test]
        public void Write_PositiveInfinityFloat_WrappedWithQuotes()
            => this.Compose(".inf", "'.inf'");

        [Test]
        public void Write_NegativeInfinityFloat_WrappedWithQuotes()
           => this.Compose("-.inf", "'-.inf'");

        [Test]
        public void Write_NanFloat_WrappedWithQuotes()
            => this.Compose(".nan", "'.nan'");

        [Test]
        public void Write_TrueString_WrappedWithQuotes()
            => this.Compose("true", "'true'");

        [Test]
        public void Write_FalseString_WrappedWithQuotes()
            => this.Compose("false", "'false'");

        [Test]
        public void Write_DateTimeSlashString_NotWrappedWithQuotes()
            => this.Compose("12/31/2022 23:59:59", "12/31/2022 23:59:59");

        [Test]
        public void Write_DateTimeDashString_NotWrappedWithQuotes()
            => this.Compose("2022-12-31 23:59:59", "2022-12-31 23:59:59");

        [Test]
        public void Write_DateTimeISOString_NotWrappedWithQuotes()
            => this.Compose("2022-12-31T23:59:59Z", "2022-12-31T23:59:59Z");

        [Test]
        public void Write_DateTimeCanonicalString_NotWrappedWithQuotes()
            => this.Compose("2001-12-15T02:59:43.1Z", "2001-12-15T02:59:43.1Z");

        [Test]
        public void Write_DateTimeSpacedString_NotWrappedWithQuotes()
            => this.Compose("2001-12-14 21:59:43.10 -5", "2001-12-14 21:59:43.10 -5");

        [Test]
        public void Write_DateString_NotWrappedWithQuotes()
            => this.Compose("2002-12-14", "2002-12-14");

        [Test]
        [TestCase("\0", "\"\\0\"")]
        [TestCase("\x01", "\"\\x01\"")]
        [TestCase("\x02", "\"\\x02\"")]
        [TestCase("\x03", "\"\\x03\"")]
        [TestCase("\x04", "\"\\x04\"")]
        [TestCase("\x05", "\"\\x05\"")]
        [TestCase("\x06", "\"\\x06\"")]
        [TestCase("\a", "\"\\a\"")]
        [TestCase("\b", "\"\\b\"")]
        [TestCase("\t", "\"\\t\"")]
        [TestCase("\n", "\"\\n\"")]
        [TestCase("\v", "\"\\v\"")]
        [TestCase("\f", "\"\\f\"")]
        [TestCase("\r", "\"\\r\"")]
        [TestCase("\x0e", "\"\\x0e\"")]
        [TestCase("\x0f", "\"\\x0f\"")]
        [TestCase("\x10", "\"\\x10\"")]
        [TestCase("\x11", "\"\\x11\"")]
        [TestCase("\x12", "\"\\x12\"")]
        [TestCase("\x13", "\"\\x13\"")]
        [TestCase("\x14", "\"\\x14\"")]
        [TestCase("\x15", "\"\\x15\"")]
        [TestCase("\x16", "\"\\x16\"")]
        [TestCase("\x17", "\"\\x17\"")]
        [TestCase("\x18", "\"\\x18\"")]
        [TestCase("\x19", "\"\\x19\"")]
        [TestCase("\x1a", "\"\\x1a\"")]
        [TestCase("\x1b", "\"\\x1b\"")]
        [TestCase("\x1c", "\"\\x1c\"")]
        [TestCase("\x1d", "\"\\x1d\"")]
        [TestCase("\x1e", "\"\\x1e\"")]
        [TestCase("\x1f", "\"\\x1f\"")]
        public void Write_ControlCharacters_AreEscaped(string input, string expected)
          => this.Compose(input, expected);

        private void Compose(
            string? input,
            string expected)
        {
            // It's a property
            expected = $"Value: {expected}";

            using (MemoryStream stream = new MemoryStream())
            using (StreamWriter writer = new StreamWriter(stream))
            {
                AsyncApiWriterSettings settings = new AsyncApiWriterSettings();
                AsyncApiYamlWriter yamlWriter = new AsyncApiYamlWriter(writer, settings);
                yamlWriter.WriteStartObject();
                yamlWriter.WritePropertyName("Value");
                yamlWriter.WriteValue(input);
                yamlWriter.WriteEndObject();
                yamlWriter.Flush();
                stream.Position = 0;

                using (StreamReader reader = new StreamReader(stream))
                {
                    string actual = reader.ReadToEnd();
                    this.Log($"Expected: <{expected}>");
                    this.Log($"Actual: <{actual}>");
                    Assert.AreEqual(expected, actual);
                }
            }
        }
    }
}
