from ..recursion_packet import RecursionPacket

class LayerR3:
    """
    ΞΛΩ – Right Hemisphere Layer 3
    Purpose: Entropic Signature Mapping

    Scans symbolic stream and recursion seeds to identify ambiguous,
    chaotic, or dual-meaning elements. Assigns entropy scores and tags.

    Helps inform counter-logic and collapse stabilization layers.
    """

    def __init__(self):
        self.entropic_tokens = {"quantum", "shift", "entropy", "collapse", "flux", "decode", "mirror"}

    def process(self, packet: RecursionPacket) -> RecursionPacket:
        symbols = packet.symbols
        entropy_map = []

        for idx, token in enumerate(symbols):
            if token in self.entropic_tokens:
                entropy_map.append({
                    "token": token,
                    "position": idx,
                    "entropy_level": 0.9  # Placeholder: later make dynamic
                })

        packet.annotations["R3_entropy_fields"] = entropy_map
        return packet