using System.Text;
using InkBlot.ParseHierarchy;
using Microsoft.Extensions.Logging;

namespace InkBlot.Tests;

/// <summary>
///     A file reader where the contents are directly provided as strings.
/// </summary>
/// <param name="filesToContents">A map between file names and their contents.</param>
internal class InMemoryFileReader((string, string)[] filesToContents) : IFileReader
{
    public Stream GetContents(string filename)
    {
        return new MemoryStream(Encoding.UTF8.GetBytes(filesToContents.First(e => e.Item1 == filename).Item2));
    }
}

internal static class Helpers
{
    public static ILoggerFactory GetLoggerFactory()
    {
        var loggerFactory = LoggerFactory.Create(builder => builder.AddConsole());
        return loggerFactory;
    }
}

public class TestBase
{
    protected static (Story, Diagnostic[]) ParseText(string inkInput)
    {
        // parse the story
        var fileReader = new InMemoryFileReader([
            ("main.ink", inkInput)
        ]);
        using var loggerFactory = Helpers.GetLoggerFactory();
        var (story, diagnosticsEnumerable) = InkBlotParser.Parse(fileReader, loggerFactory, "main.ink");
        var diagnostics = diagnosticsEnumerable.ToArray();

        return (story, diagnostics);
    }
}