"""
ctstruct/renderers/json_renderer.py
CTTree → JSON 렌더러
"""

from __future__ import annotations

import json
from ..tree import CTTree
from .base import BaseRenderer


class JSONRenderer(BaseRenderer):
    """CTTree 를 JSON 문자열로 직렬화."""

    def __init__(self, indent: int = 2, ensure_ascii: bool = False) -> None:
        self.indent = indent
        self.ensure_ascii = ensure_ascii

    def render(self, tree: CTTree) -> str:
        return json.dumps(
            tree.to_dict(),
            indent=self.indent,
            ensure_ascii=self.ensure_ascii,
        )