# Trinity Score: 90.0 (Established by Chancellor)
"""AFO DGM (Digital Genome Model) Engine
디지털 게놈 엔진 - Self-Improvement System.

Manages the evolution of the kingdom through genetic-like modification tracking.
Handles 'Chronicle' (History) and 'Mutation' (Change) logic.
"""

import logging
from datetime import UTC, datetime
from uuid import uuid4

from pydantic import BaseModel, Field

logger = logging.getLogger("AFO.Evolution.DGM")


class EvolutionMetadata(BaseModel):
    """Metadata for a single evolution step."""

    run_id: str = Field(default_factory=lambda: str(uuid4())[:8])
    generation: int
    timestamp: str = Field(default_factory=lambda: datetime.now(UTC).isoformat())
    component: str
    modifications: list[str]
    trinity_score: float
    decree_status: str = "PENDING"  # PENDING, APPROVED, REJECTED
    author: str = "DGM Engine"


class Chronicle:
    """The History Keeper of Evolution."""

    def __init__(self) -> None:
        self._history: list[EvolutionMetadata] = []
        self._current_generation: int = 0

        # Load from file if exists (Mock persistence)
        # self.metadata_path = "artifacts/evolution_chronicle.json"

    def add_entry(self, entry: EvolutionMetadata) -> None:
        """Add a new entry to the history."""
        self._history.append(entry)
        self._current_generation = max(self._current_generation, entry.generation)
        logger.info(f"🧬 Evolution recorded: Gen {entry.generation} [{entry.component}]")

    def get_history(self) -> list[EvolutionMetadata]:
        """Retrieve full history."""
        return self._history

    def update_decree_status(self, run_id: str, status: str) -> bool:
        """Update the status of a specific evolution run."""
        for entry in self._history:
            if entry.run_id == run_id:
                entry.decree_status = status
                logger.info(f"📜 Decree {run_id} updated to {status}")
                return True
        return False


class DGMEngine:
    """The Engine of Self-Improvement."""

    def __init__(self) -> None:
        self.chronicle = Chronicle()
        self.metadata_path = "artifacts/evolution_chronicle.jsonl"  # Compatibility path

    async def evolve_step(self, component: str = "core") -> EvolutionMetadata:
        """
        Trigger a proposed evolution step.
        In a real system, this would generate code changes.
        """
        logger.info(f"🧬 Initiating Evolution Step for: {component}")

        # Mock Evolution Logic
        next_gen = self.chronicle._current_generation + 1

        metadata = EvolutionMetadata(
            generation=next_gen,
            component=component,
            modifications=[f"Optimized {component} flow", "Enhanced Trinity alignment"],
            trinity_score=95.5,
        )

        self.chronicle.add_entry(metadata)

        # Simulate saving to file for compatibility
        # os.makedirs(os.path.dirname(self.metadata_path), exist_ok=True)
        # with open(self.metadata_path, 'a') as f:
        #     f.write(metadata.json() + "\n")

        return metadata


# Singleton Instance
dgm_engine = DGMEngine()
