"""角色卡导出映射：魂镜 Character + 世谱 → ST V3 卡静态快照。

反向于 import mapping。导出为静态快照——丢弃演化维度（人格版本 / 记忆 / 情绪），
仅保留当前设定 + 世谱。``mission`` / ``safety_guidelines`` 道体无 ST 对应字段，不导出。
"""

from __future__ import annotations

import json

from app.models.character import Character
from app.models.lorebook import Lorebook, LorebookEntry


def character_to_card(
    character: Character,
    lorebook: Lorebook | None = None,
    entries: list[LorebookEntry] | None = None,
) -> dict:
    """Character + 世谱 → ST V3 卡 dict。"""
    profile = json.loads(character.profile_json or "{}")
    source_meta = profile.get("source_meta") or {}
    data: dict = {
        "name": character.name,
        "description": profile.get("background", ""),
        "personality": character.personality_summary or "",
        "scenario": profile.get("scenario", ""),
        "first_mes": profile.get("first_mes", ""),
        "mes_example": profile.get("mes_example", ""),
        "alternate_greetings": profile.get("alternate_greetings", []),
        "tags": profile.get("tags", []),
        "creator": source_meta.get("creator", ""),
        "character_version": source_meta.get("character_version", ""),
        "creator_notes": source_meta.get("creator_notes", ""),
        "system_prompt": profile.get("system_prompt", ""),
        "post_history_instructions": profile.get("post_history_instructions", ""),
        "extensions": profile.get("st_extensions", {}),
    }
    if character.display_name and character.display_name != character.name:
        data["nickname"] = character.display_name
    if lorebook is not None:
        data["character_book"] = lorebook_to_st_book(lorebook, entries or [])
    return {"spec": "chara_card_v3", "spec_version": "3.0", "data": data}


def lorebook_to_st_book(lorebook: Lorebook, entries: list[LorebookEntry]) -> dict:
    return {
        "name": lorebook.name,
        "description": lorebook.description,
        "scan_depth": lorebook.scan_depth,
        "token_budget": lorebook.token_budget,
        "recursive_scanning": lorebook.recursive_scanning,
        "entries": [entry_to_st(e) for e in entries],
    }


def entry_to_st(entry: LorebookEntry) -> dict:
    return {
        "keys": json.loads(entry.keys_json or "[]"),
        "content": entry.content,
        "secondary_keys": json.loads(entry.secondary_keys_json or "[]"),
        "constant": entry.constant,
        "selective": entry.selective,
        "enabled": entry.enabled,
        "case_sensitive": entry.case_sensitive,
        "use_regex": entry.use_regex,
        "position": entry.position,
        "insertion_order": entry.insertion_order,
        "priority": entry.priority,
        "comment": entry.comment,
    }