"""角色卡导入 / 导出 API。"""

import json

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

from app.api.v1.deps import get_current_user
from app.schemas.auth import CurrentUser
from app.schemas.character import ImportCardResponse
from app.services.card_import import export_character_card, import_character_card_response

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


@router.post("/import-card", response_model=ImportCardResponse)
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),
) -> ImportCardResponse:
    """导入酒馆角色卡（V1/V2/V3），建立人物 + 世谱（character_book）。

    ``personality`` 写入道体 ``personality_summary`` 作初始值；
    ``character_book`` 转为该角色的世谱书 + 条目。
    """
    raw = await file.read()
    return await import_character_card_response(raw, owner_scope=current_user.owner_scope)


@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"'},
    )