"""角色卡导入 / 导出 API。

rewrite/1.0 M2b：导入产出**可审阅灵胚**（含 character_book 暂存），不再直接建人物；
经照心编辑与启镜（POST /embryo-drafts/{id}/activate）后才物化人物与世谱。
"""

import json

from fastapi import APIRouter, Depends, File, Response, UploadFile

from app.api.v1.deps import get_current_user
from app.domains import jingsheng
from app.schemas.auth import CurrentUser
from app.services.card_import import card_to_embryo_payload, export_character_card

router = APIRouter(prefix="/characters", tags=["characters"])


@router.post("/import-card", status_code=201)
async def import_character_card_api(
    file: UploadFile = File(..., description="角色卡文件，支持 .png / .json / .charx。"),
    current_user: CurrentUser = Depends(get_current_user),
) -> dict:
    """导入酒馆角色卡（V1/V2/V3）→ 生成可审阅灵胚。

    卡内容整体进入灵胚道体草稿（identity_baseline.import_card），
    ``character_book`` 在启镜时物化为该人物的世谱书与条目。
    """
    raw = await file.read()
    payload = card_to_embryo_payload(raw)
    book_entry_count = payload.pop("book_entry_count")
    embryo = await jingsheng.create_embryo(
        owner_scope=current_user.owner_scope,
        source="imported",
        name=payload["name"],
        description=payload["description"],
        identity_baseline=payload["identity_baseline"],
    )
    return {
        "embryo_id": embryo.id,
        "status": embryo.status,
        "name": embryo.name,
        "source": embryo.source,
        "book_entry_count": book_entry_count,
        "next": "照心编辑 PATCH /embryo-drafts/{id}，启镜 POST /embryo-drafts/{id}/activate",
    }


@router.get("/{character_id}/export-card")
async def export_character_card_api(
    character_id: str,
    current_user: CurrentUser = Depends(get_current_user),
) -> Response:
    """导出人物为 ST V3 卡静态快照（.json，丢弃演化维度）。"""
    card = await export_character_card(character_id, owner_scope=current_user.owner_scope)
    return Response(
        content=json.dumps(card, ensure_ascii=False, indent=2),
        media_type="application/json",
        headers={"Content-Disposition": 'attachment; filename="character_card.json"'},
    )