using LANCommander.SDK;
using LANCommander.SDK.Helpers;
using LANCommander.SDK.Migrations;
using Semver;

namespace LANCommander.Server.Migrations;

public class EncapsulateUserData(
    ILogger<EncapsulateUserData> logger) : FileSystemMigration(logger)
{
    public override SemVersion Version => new(2, 0, 0);

    private string _oldConfigDirectory = string.Empty;

    public override async Task ExecutePostMoveAsync()
    {
        var baseDirectory = Directory.GetCurrentDirectory();

        if (DirectoryHelper.IsDirectoryWritable(baseDirectory))
            _oldConfigDirectory = baseDirectory;
        else
            _oldConfigDirectory = AppPaths.GetAppDataPath();

        MoveOldPath("Backups");
        MoveOldPath("Media");
        MoveOldPath("Saves");
        MoveOldPath("Snippets");
        MoveOldPath("Upload");
        MoveOldPath("Uploads");
        MoveOldPath("Servers");
        MoveOldPath("Updates");
        MoveOldPath("Launcher");
        MoveOldPath("Logs");
    }
    private void MoveOldPath(string path)
    {
        try
        {
            var source = Path.Combine(_oldConfigDirectory, path);
            var destination = AppPaths.GetConfigPath(path);

            if (source == destination)
                return;

            logger.LogInformation($"Moving old config directory/file \"{path}\"");

            if (Directory.Exists(source))
                DirectoryHelper.MoveContents(source, destination);
            else if (File.Exists(source))
            {
                if (!Directory.Exists(Path.GetDirectoryName(destination)))
                    Directory.CreateDirectory(Path.GetDirectoryName(destination));

                File.Move(source, destination);
            }
            else
                logger.LogInformation($"Skipping old directory/file \"{path}\" because it doesn't exist.");
        }
        catch (Exception ex)
        {
            logger.LogError(ex, "Error while moving old config directory/file");
        }
    }
}