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using UnityEngine;

public class CompressIfUncompressed : MonoBehaviour
{
    void Start()
    {
        var uncompressedSettings = new ES3Settings(ES3.CompressionType.None);
        var compressedSettings = new ES3Settings(ES3.CompressionType.Gzip);

        // Create a new uncompressed file for testing purposes.
        ES3.DeleteFile();
        ES3.Save("myInt", 123, uncompressedSettings);

        try
        {
            // Try to load from the file with compression enabled.
            ES3.LoadRawBytes(compressedSettings);
        }
        // If it fails with an IOException, the data is likely incompressed, so compress it.
        catch (System.IO.IOException)
        {
            var bytes = ES3.LoadRawBytes(uncompressedSettings);
            ES3.SaveRaw(bytes, compressedSettings);
        }

        // Loads correctly.
        var myInt = ES3.Load<int>("myInt", compressedSettings);
    }
}