"""
MotherConfig — HuggingFace-compatible configuration for MOTHER CORE.

This is a thin metadata wrapper. The actual architecture parameters
come from mother_core.config.ModelConfig. This class exists so HF tools
can read 'what architecture am I loading' without needing to import
MOTHER CORE internals.
"""
from transformers import PretrainedConfig


class MotherConfig(PretrainedConfig):
    model_type = "mother_core"
    keys_to_ignore_at_inference = ["past_key_values"]

    def __init__(
        self,
        vocab_size: int = 50258,
        hidden_size: int = 3072,
        num_hidden_layers: int = 28,
        num_attention_heads: int = 24,
        num_key_value_heads: int = 6,
        ff_mult: float = 4.0,
        max_position_embeddings: int = 1024,
        rope_theta: float = 10000.0,
        rms_norm_eps: float = 1e-5,
        tie_word_embeddings: bool = False,
        bos_token_id: int = 1,
        eos_token_id: int = 2,
        pad_token_id: int = 0,
        # MOTHER CORE sovereign identity metadata
        model_name: str = "MOTHER CORE",
        model_version: str = "v11",
        architect: str = "Christopher Kenna",
        organisation: str = "MediaStream AI Limited",
        sovereign_nation: str = "United Kingdom",
        **kwargs,
    ):
        self.vocab_size = vocab_size
        self.hidden_size = hidden_size
        self.num_hidden_layers = num_hidden_layers
        self.num_attention_heads = num_attention_heads
        self.num_key_value_heads = num_key_value_heads
        self.ff_mult = ff_mult
        self.max_position_embeddings = max_position_embeddings
        self.rope_theta = rope_theta
        self.rms_norm_eps = rms_norm_eps
        self.model_name = model_name
        self.model_version = model_version
        self.architect = architect
        self.organisation = organisation
        self.sovereign_nation = sovereign_nation
        super().__init__(
            tie_word_embeddings=tie_word_embeddings,
            bos_token_id=bos_token_id,
            eos_token_id=eos_token_id,
            pad_token_id=pad_token_id,
            **kwargs,
        )