thief-mission-viewer/project/code/TMV/InstallPaths.cs

using System.IO;
using Godot;

namespace KeepersCompound.TMV;

// TODO: Error handling lol
public class InstallPaths
{
    public string rootPath;
    public string famPath;
    public string objPath;
    public string omsPath;
    public string fmsPath;

    public InstallPaths(string root)
    {
        var searchOptions = new EnumerationOptions
        {
            MatchCasing = MatchCasing.CaseInsensitive,
            RecurseSubdirectories = true
        };

        rootPath = root;
        famPath = Directory.GetFiles(rootPath, "fam.crf", searchOptions)[0];
        objPath = Directory.GetFiles(rootPath, "obj.crf", searchOptions)[0];
        var paths = Directory.GetFiles(rootPath, "install.cfg", searchOptions);
        if (paths.Length == 0)
        {
            paths = Directory.GetFiles(rootPath, "darkinst.cfg", searchOptions);
        }
        var installCfgPath = paths[0];
        GD.Print($"Install.cfg: {installCfgPath}");
        foreach (var line in File.ReadLines(installCfgPath))
        {
            if (line.StartsWith("load_path"))
            {
                var path = line.Split(" ")[1].Replace("\\", "/");
                omsPath = Path.GetFullPath(rootPath + path);
                break;
            }
        }

        var camModPath = Directory.GetFiles(rootPath, "cam_mod.ini", searchOptions)[0];
        fmsPath = rootPath + "/FMs";
        foreach (var line in File.ReadLines(camModPath))
        {
            if (line.StartsWith("fm_path"))
            {
                var path = line.Split(" ")[1].Replace("\\", "/");
                fmsPath = Path.GetFullPath(rootPath + path);
                break;
            }
        }

        GD.Print($"OMs Path: {omsPath}");
    }
}