"""codegraph/serializer.py — JSON serialization helpers for CodeGraph state()."""
import json
from .graph import CodeGraph


def to_dict(graph: CodeGraph) -> dict:
    return {
        "episode_seed": graph.episode_seed,
        "conventions": graph.conventions,
        "components": {
            name: {
                "file": comp.get("file", ""),
                "language": comp.get("language", "py"),
                "functions": comp.get("functions", [])[:20],
                "imports": comp.get("imports", [])[:15],
                "conventions": comp.get("conventions", {}),
                "created_at_step": comp.get("created_at_step", 0),
            }
            for name, comp in graph.components.items()
        },
    }


def to_json(graph: CodeGraph) -> str:
    return json.dumps(to_dict(graph), indent=2)