export enum LayerType {
  INPUT = 'Input',
  LINEAR = 'Linear',
  CONV1D = 'Conv1D',
  CONV2D = 'Conv2D',
  CONV3D = 'Conv3D',
  CONV_TRANSPOSE2D = 'ConvTranspose2D',
  DEFORMABLE_CONV = 'DeformConv2d',
  SEPARABLE_CONV2D = 'SeparableConv2D', // New
  DEPTHWISE_CONV2D = 'DepthwiseConv2D', // New
  RELU = 'ReLU',
  LEAKYRELU = 'LeakyReLU',
  PRELU = 'PReLU',
  GELU = 'GELU',
  SILU = 'SiLU',
  SWIGLU = 'SwiGLU',
  SIGMOID = 'Sigmoid',
  TANH = 'Tanh',
  SOFTPLUS = 'Softplus', // New
  SOFTSIGN = 'Softsign', // New
  MAXPOOL = 'MaxPool2D',
  MAXPOOL3D = 'MaxPool3D',
  AVGPOOL = 'AvgPool2D',
  GLOBAL_AVG_POOL = 'GlobalAvgPool',
  ADAPTIVEAVGPOOL = 'AdaptiveAvgPool2D',
  UPSAMPLE = 'Upsample',
  PIXEL_SHUFFLE = 'PixelShuffle',
  DROPOUT = 'Dropout',
  DROPPATH = 'DropPath',
  SPATIAL_DROPOUT = 'SpatialDropout', // New
  BATCHNORM = 'BatchNorm2D',
  GROUPNORM = 'GroupNorm',
  LAYERNORM = 'LayerNorm',
  RMSNORM = 'RMSNorm',
  INSTANCENORM = 'InstanceNorm2d',
  FLATTEN = 'Flatten',
  RESHAPE = 'Reshape',
  PERMUTE = 'Permute',
  UNFLATTEN = 'Unflatten',
  EMBEDDING = 'Embedding',
  PATCH_EMBED = 'PatchEmbed',
  POS_EMBED = 'PositionalEmbed',
  ROPE = 'RotaryPosEmbed',
  TIME_EMBEDDING = 'TimeEmbedding',
  LSTM = 'LSTM',
  GRU = 'GRU',
  ATTENTION = 'SelfAttention',
  CROSS_ATTENTION = 'CrossAttention',
  WINDOW_ATTENTION = 'WindowAttention',
  TRANSFORMER_BLOCK = 'TransformerBlock',
  TRANSFORMER_ENCODER = 'TransformerEncoderLayer',
  TRANSFORMER_DECODER = 'TransformerDecoderLayer',
  MOE_BLOCK = 'SparseMoEBlock',
  SE_BLOCK = 'SqueezeExcitation',
  ACTION_HEAD = 'ActionHead',
  SAM_PROMPT_ENCODER = 'SamPromptEncoder',
  SAM_MASK_DECODER = 'SamMaskDecoder',
  
  // TensorFlow / Keras Preprocessing
  RESCALING = 'Rescaling',
  RESIZING = 'Resizing',
  CENTER_CROP = 'CenterCrop',
  RANDOM_FLIP = 'RandomFlip',
  RANDOM_ROTATION = 'RandomRotation',
  RANDOM_ZOOM = 'RandomZoom',
  RANDOM_CONTRAST = 'RandomContrast',
  TEXT_VECTORIZATION = 'TextVectorization',
  NORMALIZATION_LAYER = 'NormalizationLayer', // Keras style mean/var
  DISCRETIZATION = 'Discretization',
  CATEGORY_ENCODING = 'CategoryEncoding',
  
  // YOLO / Detection
  C2F_BLOCK = 'C2fBlock',
  SPPF_BLOCK = 'SPPFBlock',
  DARKNET_BLOCK = 'DarknetBlock',
  DETECT_HEAD = 'DetectHead',
  ANCHOR_BOX = 'AnchorBox',
  NMS = 'NMS',

  // Audio / Speech
  STFT = 'STFT',
  MEL_SPECTROGRAM = 'MelSpectrogram',
  SPEC_AUGMENT = 'SpecAugment',
  CONFORMER_BLOCK = 'ConformerBlock',
  WAVENET_BLOCK = 'WaveNetBlock',
  WAV2VEC2_ENC = 'Wav2Vec2Encoder',
  RVC_ENCODER = 'HubertContentEncoder',
  VOCODER = 'Vocoder',
  AUDIO_EMBEDDING = 'AudioEmbedding',
  SINC_CONV = 'SincConv',

  // 3D / NeRF / Point Cloud
  NERF_BLOCK = 'NeRFBlock',
  POINTNET_BLOCK = 'PointNetBlock',
  POINT_TRANSFORMER = 'PointTransformer',
  TRIPLANE_ENC = 'TriplaneEncoder',
  GAUSSIAN_SPLAT = 'GaussianSplatDecoder',
  MESH_CONV = 'MeshConv',

  // OCR (Text Recognition)
  TPS_TRANSFORM = 'TPSTransform',
  CRNN_BLOCK = 'CRNNBlock',
  CTC_DECODER = 'CTCDecoder',

  // Depth / Motion / Robotics
  DEPTH_DECODER = 'DepthDecoder',
  DISPARITY_HEAD = 'DisparityHead',
  OPTICAL_FLOW = 'OpticalFlowBlock',
  VELOCITY_HEAD = 'VelocityHead',
  KALMAN_FILTER = 'KalmanFilter',
  BEV_TRANSFORM = 'BEVTransformer',
  RADAR_ENCODER = 'RadarEncoder',

  // Video / Generation
  VIDEO_DIFFUSION_BLOCK = 'VideoDiffusionBlock',
  SPATIO_TEMPORAL_ATTN = 'SpatioTemporalAttention',
  VIDEO_TOKENIZER = 'VideoTokenizer',
  FRAME_INTERPOLATOR = 'FrameInterpolator',
  TEMPORAL_SHIFT = 'TemporalShift',
  NON_LOCAL_BLOCK = 'NonLocalBlock',
  MULTIMODAL_FUSION = 'MultimodalFusion',

  // Graph Neural Networks (GNN)
  GCN_CONV = 'GCNConv',
  GRAPH_SAGE = 'GraphSAGE',
  GAT_CONV = 'GATConv',
  GIN_CONV = 'GINConv',

  // Physics & SciML
  NEURAL_ODE = 'NeuralODE',
  PINN_LINEAR = 'PINNLinear',
  HAMILTONIAN_NN = 'HamiltonianNN',
  PROTEIN_FOLDING = 'ProteinFoldingBlock',

  // Spiking & Neuromorphic
  LIF_NEURON = 'LIFNeuron',
  SPIKING_LAYER = 'SpikingLayer',

  // Reinforcement Learning (RL)
  DUELING_HEAD = 'DuelingHead',
  PPO_HEAD = 'PPOHead',
  SAC_HEAD = 'SACHead',

  // Advanced / Niche / Future
  CAPSULE = 'CapsuleLayer',
  HYPER_NET = 'HyperNetwork',
  MAMBA_BLOCK = 'MambaBlock', // SSM
  RWKV_BLOCK = 'RWKVBlock', // RNN-Transformer Hybrid
  HOPFIELD = 'HopfieldLayer', // Energy Based
  NORMALIZING_FLOW = 'NormalizingFlow', // Probabilistic
  DNC_MEMORY = 'DNCMemory', // Memory Augmented
  ARCFACE = 'ArcFace', // Metric Learning
  ECHO_STATE = 'EchoStateNetwork', // Reservoir

  CONCAT = 'Concat',
  ADD = 'Add',
  SUBTRACT = 'Subtract', // New
  MULTIPLY = 'Multiply', // New
  AVERAGE = 'Average', // New
  MAXIMUM = 'Maximum', // New
  MINIMUM = 'Minimum', // New
  DOT = 'Dot', // New
  
  OUTPUT = 'Output',
  CUSTOM = 'CustomLayer',
  LAMBDA = 'Lambda', // New
  IDENTITY = 'Identity'
}

export interface LayerParameter {
  name: string;
  type: 'number' | 'string' | 'select' | 'boolean' | 'text';
  label: string;
  default: any;
  options?: string[]; // For select types
  description?: string;
}

export interface LayerDefinition {
  type: LayerType;
  label: string;
  description: string;
  category: 'Core' | 'Convolution' | 'Preprocessing' | 'Recurrent' | 'Normalization' | 'Transformer' | 'GenAI' | 'Utility' | 'Merge' | 'Detection' | 'Audio' | '3D' | 'OCR' | 'Robotics' | 'Video' | 'Graph' | 'Physics' | 'Spiking' | 'RL' | 'Advanced';
  parameters: LayerParameter[];
}

export interface NodeData {
  label: string;
  type: LayerType;
  params: Record<string, any>;
  isValid?: boolean;
  error?: string;
  onDelete?: (id: string) => void;
}

export interface GraphTemplate {
  id: string;
  name: string;
  description: string;
  nodes: any[];
  edges: any[];
}

export interface GeneratedCodeResponse {
  code: string;
  explanation: string;
}

export interface LogEntry {
  id: string;
  timestamp: Date;
  message: string;
  type: 'info' | 'success' | 'warning' | 'error';
}