replicate.maui/Replicate.Maui/EventArgs.cs

namespace MarketAlly.Replicate.Maui;

/// <summary>
/// Event args for when a transformation starts.
/// </summary>
public class TransformationStartedEventArgs : EventArgs
{
    /// <summary>
    /// The type of transformation being started.
    /// </summary>
    public TransformationType Type { get; }

    public TransformationStartedEventArgs(TransformationType type) => Type = type;
}

/// <summary>
/// Event args for when a transformation completes successfully.
/// </summary>
public class TransformationCompletedEventArgs : EventArgs
{
    /// <summary>
    /// The type of transformation that completed.
    /// </summary>
    public TransformationType Type { get; }

    /// <summary>
    /// The URL of the result output.
    /// </summary>
    public string? ResultUrl { get; }

    /// <summary>
    /// The full prediction result.
    /// </summary>
    public PredictionResult Result { get; }

    public TransformationCompletedEventArgs(TransformationType type, PredictionResult result)
    {
        Type = type;
        Result = result;
        ResultUrl = result.Output;
    }
}

/// <summary>
/// Event args for when a transformation fails.
/// </summary>
public class TransformationErrorEventArgs : EventArgs
{
    /// <summary>
    /// The type of transformation that failed.
    /// </summary>
    public TransformationType Type { get; }

    /// <summary>
    /// The exception that occurred.
    /// </summary>
    public Exception Error { get; }

    public TransformationErrorEventArgs(TransformationType type, Exception error)
    {
        Type = type;
        Error = error;
    }
}

/// <summary>
/// Event args for when an image is selected.
/// </summary>
public class ImageSelectedEventArgs : EventArgs
{
    /// <summary>
    /// The selected image bytes.
    /// </summary>
    public byte[] ImageBytes { get; }

    public ImageSelectedEventArgs(byte[] imageBytes) => ImageBytes = imageBytes;
}

/// <summary>
/// Event args for when an image is tapped.
/// </summary>
public class ImageTappedEventArgs : EventArgs
{
    /// <summary>
    /// Whether this is the source image (true) or result image (false).
    /// </summary>
    public bool IsSourceImage { get; }

    /// <summary>
    /// The URL of the result, if applicable.
    /// </summary>
    public string? ResultUrl { get; }

    /// <summary>
    /// The image bytes, if available.
    /// </summary>
    public byte[]? ImageBytes { get; }

    public ImageTappedEventArgs(bool isSourceImage, string? resultUrl = null, byte[]? imageBytes = null)
    {
        IsSourceImage = isSourceImage;
        ResultUrl = resultUrl;
        ImageBytes = imageBytes;
    }
}

/// <summary>
/// Event args for when a file is saved successfully.
/// </summary>
public class FileSavedEventArgs : EventArgs
{
    /// <summary>
    /// The full path to the saved file.
    /// </summary>
    public string FilePath { get; }

    /// <summary>
    /// The type of file saved (Image or Video).
    /// </summary>
    public TransformationType Type { get; }

    /// <summary>
    /// The size of the saved file in bytes.
    /// </summary>
    public long FileSizeBytes { get; }

    public FileSavedEventArgs(string filePath, TransformationType type, long fileSizeBytes)
    {
        FilePath = filePath;
        Type = type;
        FileSizeBytes = fileSizeBytes;
    }
}

/// <summary>
/// Event args for when a file save fails.
/// </summary>
public class FileSaveErrorEventArgs : EventArgs
{
    /// <summary>
    /// The type of file that failed to save.
    /// </summary>
    public TransformationType Type { get; }

    /// <summary>
    /// The exception that occurred.
    /// </summary>
    public Exception Error { get; }

    public FileSaveErrorEventArgs(TransformationType type, Exception error)
    {
        Type = type;
        Error = error;
    }
}

/// <summary>
/// Event args for when the transformer state changes.
/// </summary>
public class StateChangedEventArgs : EventArgs
{
    /// <summary>
    /// The previous state of the control.
    /// </summary>
    public TransformerState PreviousState { get; }

    /// <summary>
    /// The new/current state of the control.
    /// </summary>
    public TransformerState NewState { get; }

    public StateChangedEventArgs(TransformerState previousState, TransformerState newState)
    {
        PreviousState = previousState;
        NewState = newState;
    }
}