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"""UnivNetModel model configuration"""

from huggingface_hub.dataclasses import strict

from ...configuration_utils import PreTrainedConfig
from ...utils import auto_docstring


@auto_docstring(checkpoint="dg845/univnet-dev")
@strict
class UnivNetConfig(PreTrainedConfig):
    r"""
    model_in_channels (`int`, *optional*, defaults to 64):
        The number of input channels for the UnivNet residual network. This should correspond to
        `noise_sequence.shape[1]` and the value used in the [`UnivNetFeatureExtractor`] class.
    model_hidden_channels (`int`, *optional*, defaults to 32):
        The number of hidden channels of each residual block in the UnivNet residual network.
    num_mel_bins (`int`, *optional*, defaults to 100):
        The number of frequency bins in the conditioning log-mel spectrogram. This should correspond to the value
        used in the [`UnivNetFeatureExtractor`] class.
    resblock_kernel_sizes (`tuple[int]` or `list[int]`, *optional*, defaults to `[3, 3, 3]`):
        A tuple of integers defining the kernel sizes of the 1D convolutional layers in the UnivNet residual
        network. The length of `resblock_kernel_sizes` defines the number of resnet blocks and should match that of
        `resblock_stride_sizes` and `resblock_dilation_sizes`.
    resblock_stride_sizes (`tuple[int]` or `list[int]`, *optional*, defaults to `[8, 8, 4]`):
        A tuple of integers defining the stride sizes of the 1D convolutional layers in the UnivNet residual
        network. The length of `resblock_stride_sizes` should match that of `resblock_kernel_sizes` and
        `resblock_dilation_sizes`.
    resblock_dilation_sizes (`tuple[tuple[int]]` or `list[list[int]]`, *optional*, defaults to `[[1, 3, 9, 27], [1, 3, 9, 27], [1, 3, 9, 27]]`):
        A nested tuple of integers defining the dilation rates of the dilated 1D convolutional layers in the
        UnivNet residual network. The length of `resblock_dilation_sizes` should match that of
        `resblock_kernel_sizes` and `resblock_stride_sizes`. The length of each nested list in
        `resblock_dilation_sizes` defines the number of convolutional layers per resnet block.
    kernel_predictor_num_blocks (`int`, *optional*, defaults to 3):
        The number of residual blocks in the kernel predictor network, which calculates the kernel and bias for
        each location variable convolution layer in the UnivNet residual network.
    kernel_predictor_hidden_channels (`int`, *optional*, defaults to 64):
        The number of hidden channels for each residual block in the kernel predictor network.
    kernel_predictor_conv_size (`int`, *optional*, defaults to 3):
        The kernel size of each 1D convolutional layer in the kernel predictor network.
    kernel_predictor_dropout (`float`, *optional*, defaults to 0.0):
        The dropout probability for each residual block in the kernel predictor network.
    leaky_relu_slope (`float`, *optional*, defaults to 0.2):
        The angle of the negative slope used by the leaky ReLU activation.

    Example:

    ```python
    >>> from transformers import UnivNetModel, UnivNetConfig

    >>> # Initializing a Tortoise TTS style configuration
    >>> configuration = UnivNetConfig()

    >>> # Initializing a model (with random weights) from the Tortoise TTS style configuration
    >>> model = UnivNetModel(configuration)

    >>> # Accessing the model configuration
    >>> configuration = model.config
    ```
    """

    model_type = "univnet"

    model_in_channels: int = 64
    model_hidden_channels: int = 32
    num_mel_bins: int = 100
    resblock_kernel_sizes: list[int] | tuple[int, ...] = (3, 3, 3)
    resblock_stride_sizes: list[int] | tuple[int, ...] = (8, 8, 4)
    resblock_dilation_sizes: list | tuple = ((1, 3, 9, 27), (1, 3, 9, 27), (1, 3, 9, 27))
    kernel_predictor_num_blocks: int = 3
    kernel_predictor_hidden_channels: int = 64
    kernel_predictor_conv_size: int = 3
    kernel_predictor_dropout: float | int = 0.0
    initializer_range: float = 0.01
    leaky_relu_slope: float = 0.2

    def validate_architecture(self):
        """Part of `@strict`-powered validation. Validates the architecture of the config."""
        if not (
            len(self.resblock_kernel_sizes) == len(self.resblock_stride_sizes) == len(self.resblock_dilation_sizes)
        ):
            raise ValueError(
                "`resblock_kernel_sizes`, `resblock_stride_sizes`, and `resblock_dilation_sizes` must all have the"
                " same length (which will be the number of resnet blocks in the model)."
            )


__all__ = ["UnivNetConfig"]