"""character — 카르밀라 응답 (LlmAgent, CHARACTER_MODEL).

instruction은 engine/instructions/character_carmilla.md.
{carmilla_sheet}/{pocket_brief}/{trust_texture}/{guard_directive}는
loader/guard가 매 턴 session.state에 채운다 (치환값은 중괄호 위생 처리됨).
"""

from __future__ import annotations

from pathlib import Path

from google.adk.agents import LlmAgent

from engine.model import CHARACTER_MODEL

_INSTRUCTION = (Path(__file__).resolve().parents[2] / "instructions" / "character_carmilla.md")


def create_character(model=None) -> LlmAgent:
    return LlmAgent(
        name="carmilla",
        model=model or CHARACTER_MODEL,
        instruction=_INSTRUCTION.read_text(encoding="utf-8"),
        output_key="last_carmilla_reply",
    )