gregExtractor/Utils/CoveragePathResolver.cs

namespace gregExtractor.Utils;

public static class CoveragePathResolver
{
    public static string[] ResolveSourceDirs(string? sourceDirsOption, string workingDirectory)
    {
        if (!string.IsNullOrWhiteSpace(sourceDirsOption))
        {
            return sourceDirsOption
                .Split(';', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries)
                .Where(Directory.Exists)
                .Distinct(StringComparer.OrdinalIgnoreCase)
                .ToArray();
        }

        return GetDefaultSourceDirCandidates(workingDirectory)
            .Where(Directory.Exists)
            .Distinct(StringComparer.OrdinalIgnoreCase)
            .ToArray();
    }

    public static string GetDefaultSourcesText(string workingDirectory)
    {
        return string.Join(';', GetDefaultSourceDirCandidates(workingDirectory).Where(Directory.Exists));
    }

    private static IEnumerable<string> GetDefaultSourceDirCandidates(string workingDirectory)
    {
        string? parent = Directory.GetParent(workingDirectory)?.FullName;

        yield return Path.Combine(workingDirectory, "Hooks");
        yield return Path.Combine(workingDirectory, "framework");

        if (!string.IsNullOrWhiteSpace(parent))
        {
            yield return Path.Combine(parent, "gregCore", "Hooks");
            yield return Path.Combine(parent, "gregCore", "framework");
        }
    }
}