using AvParser.Core.Parsing;
using AvParser.Core.Parsing.Samples;

namespace AvParser.Core.Tests;

public class ParserCatalogTests
{
    private static IParserCatalog Catalog() => new ParserCatalog([new KeyValueTextParser(), new DelimitedTextParser()]);

    [Fact]
    public void Orders_parsers_by_display_name_regardless_of_registration_order() =>
        Catalog().Parsers.Select(p => p.Id).ShouldBe(["delimited", "key-value"]);

    [Fact]
    public void Finds_a_parser_by_id_ignoring_case() => Catalog().Find("KEY-VALUE")!.Id.ShouldBe("key-value");

    [Fact]
    public void Returns_null_for_an_unknown_id() => Catalog().Find("nope").ShouldBeNull();

    [Fact]
    public void Falls_back_to_the_default_for_an_unknown_id()
    {
        var catalog = Catalog();

        catalog.FindOrDefault("nope").ShouldBeSameAs(catalog.DefaultParser);
        catalog.FindOrDefault(null).ShouldBeSameAs(catalog.DefaultParser);
    }

    [Fact]
    public void Rejects_an_empty_registration() => Should.Throw<ArgumentException>(() => new ParserCatalog([]));

    [Fact]
    public void Rejects_duplicate_ids() =>
        Should
            .Throw<ArgumentException>(() => new ParserCatalog([new DelimitedTextParser(), new DelimitedTextParser()]))
            .Message.ShouldContain("Duplicate");
}