using System;
using System.Collections.Generic;
using Tensorflow.Keras.ArgsDefinition;
using Tensorflow.Keras.Engine;

namespace Tensorflow.Keras.Layers
{
    public class StackedRNNCells : Layer, RNNArgs.IRnnArgCell
    {
        public IList<RnnCell> Cells { get; set; }

        public StackedRNNCells(StackedRNNCellsArgs args) : base(args)
        {
            Cells = args.Cells;
            //Cells.reverse_state_order = kwargs.pop('reverse_state_order', False);
            //    self.reverse_state_order = kwargs.pop('reverse_state_order', False)
            //    if self.reverse_state_order:
            //      logging.warning('reverse_state_order=True in StackedRNNCells will soon '
            //                      'be deprecated. Please update the code to work with the '
            //                      'natural order of states if you rely on the RNN states, '
            //                      'eg RNN(return_state=True).')
            //    super(StackedRNNCells, self).__init__(**kwargs)
            throw new NotImplementedException("");
        }

        public object state_size
        {
            get => throw new NotImplementedException();
        }

        //@property
        //def state_size(self) :
        //    return tuple(c.state_size for c in
        //                 (self.cells[::- 1] if self.reverse_state_order else self.cells))

        //  @property
        //  def output_size(self) :
        //    if getattr(self.cells[-1], 'output_size', None) is not None:
        //      return self.cells[-1].output_size
        //    elif _is_multiple_state(self.cells[-1].state_size) :
        //      return self.cells[-1].state_size[0]
        //    else:
        //      return self.cells[-1].state_size

        //  def get_initial_state(self, inputs= None, batch_size= None, dtype= None) :
        //    initial_states = []
        //    for cell in self.cells[::- 1] if self.reverse_state_order else self.cells:
        //      get_initial_state_fn = getattr(cell, 'get_initial_state', None)
        //      if get_initial_state_fn:
        //        initial_states.append(get_initial_state_fn(
        //            inputs=inputs, batch_size=batch_size, dtype=dtype))
        //      else:
        //        initial_states.append(_generate_zero_filled_state_for_cell(
        //            cell, inputs, batch_size, dtype))

        //    return tuple(initial_states)

        //  def call(self, inputs, states, constants= None, training= None, ** kwargs):
        //    # Recover per-cell states.
        //    state_size = (self.state_size[::- 1]
        //                  if self.reverse_state_order else self.state_size)
        //    nested_states = nest.pack_sequence_as(state_size, nest.flatten(states))

        //    # Call the cells in order and store the returned states.
        //    new_nested_states = []
        //    for cell, states in zip(self.cells, nested_states) :
        //      states = states if nest.is_nested(states) else [states]
        //# TF cell does not wrap the state into list when there is only one state.
        //    is_tf_rnn_cell = getattr(cell, '_is_tf_rnn_cell', None) is not None
        //      states = states[0] if len(states) == 1 and is_tf_rnn_cell else states
        //      if generic_utils.has_arg(cell.call, 'training'):
        //        kwargs['training'] = training
        //      else:
        //        kwargs.pop('training', None)
        //      # Use the __call__ function for callable objects, eg layers, so that it
        //      # will have the proper name scopes for the ops, etc.
        //      cell_call_fn = cell.__call__ if callable(cell) else cell.call
        //      if generic_utils.has_arg(cell.call, 'constants'):
        //        inputs, states = cell_call_fn(inputs, states,
        //                                      constants= constants, ** kwargs)
        //      else:
        //        inputs, states = cell_call_fn(inputs, states, ** kwargs)
        //      new_nested_states.append(states)

        //    return inputs, nest.pack_sequence_as(state_size,
        //                                         nest.flatten(new_nested_states))

        //  @tf_utils.shape_type_conversion
        //  def build(self, input_shape) :
        //    if isinstance(input_shape, list) :
        //      input_shape = input_shape[0]
        //    for cell in self.cells:
        //      if isinstance(cell, Layer) and not cell.built:
        //        with K.name_scope(cell.name):
        //          cell.build(input_shape)
        //          cell.built = True
        //      if getattr(cell, 'output_size', None) is not None:
        //        output_dim = cell.output_size
        //      elif _is_multiple_state(cell.state_size) :
        //        output_dim = cell.state_size[0]
        //      else:
        //        output_dim = cell.state_size
        //      input_shape = tuple([input_shape[0]] +
        //                          tensor_shape.TensorShape(output_dim).as_list())
        //    self.built = True

        //  def get_config(self) :
        //    cells = []
        //    for cell in self.cells:
        //      cells.append(generic_utils.serialize_keras_object(cell))
        //    config = {'cells': cells
        //}
        //base_config = super(StackedRNNCells, self).get_config()
        //    return dict(list(base_config.items()) + list(config.items()))

        //  @classmethod
        //  def from_config(cls, config, custom_objects = None):
        //    from tensorflow.python.keras.layers import deserialize as deserialize_layer  # pylint: disable=g-import-not-at-top
        //    cells = []
        //    for cell_config in config.pop('cells'):
        //      cells.append(
        //          deserialize_layer(cell_config, custom_objects = custom_objects))
        //    return cls(cells, **config)
    }
}