namespace SzCore.Defaults;

public class DefaultLocalFileManager : ISzFileManager
{
    public string DataPath => Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "data");
    public string DatasetsPath => Path.Combine(DataPath, "datasets");
    public string TemplatesPath => Path.Combine(DataPath, "templates");

    public DefaultLocalFileManager()
    {
        Directory.CreateDirectory(DataPath);
        Directory.CreateDirectory(DatasetsPath);
        Directory.CreateDirectory(TemplatesPath);
    }

    #region Synchronous Methods
    public bool SaveFile(string path, string fileContent)
    {
        try
        {
            PrepareDirectory(path);
            File.WriteAllText(path, fileContent);
            return true;
        }
        catch (Exception e)
        {
            SZ.Logger.LogError($"Error saving file: {e.Message}");
            return false;
        }
    }

    public string? LoadFile(string path)
    {
        try { return File.ReadAllText(path); }
        catch { return null; }
    }

    public bool DeleteFile(string path)
    {
        try { File.Delete(path); return true; }
        catch { return false; }
    }
    #endregion

    #region Asynchronous Methods
    public async Task<bool> SaveFileAsync(string path, string fileContent, CancellationToken ct = default)
    {
        try
        {
            PrepareDirectory(path);
            // Use the native async File I/O
            await File.WriteAllTextAsync(path, fileContent, ct);
            return true;
        }
        catch (Exception e)
        {
            SZ.Logger.LogError($"Error saving file async: {e.Message}");
            return false;
        }
    }

    public async Task<string?> LoadFileAsync(string path, CancellationToken ct = default)
    {
        try 
        { 
            if (!File.Exists(path)) return null;
            return await File.ReadAllTextAsync(path, ct); 
        }
        catch { return null; }
    }
    #endregion

    private void PrepareDirectory(string filePath)
    {
        var dir = Path.GetDirectoryName(filePath);
        if (dir != null && !Directory.Exists(dir))
        {
            Directory.CreateDirectory(dir);
        }
    }
}