"""B01_Dashboard 회사 공유 도면 자산(로고·서명) API — 본체 라우터가 include 함."""

import mimetypes
import os
from typing import Any

from fastapi import APIRouter, Depends, File, Form, HTTPException, Query, Response, UploadFile

from common_util.common_util_auth import verify_session
from common_util.common_util_storage import read_stored_asset

from .B01_Dashboard_Repository_Assets import (
    ASSET_EXTENSIONS,
    ASSET_KINDS,
    ASSET_MAX_BYTES,
    create_company_asset,
    delete_company_asset,
    get_company_asset,
    list_company_assets,
    update_company_asset,
    write_company_asset_file,
)
from .B01_Dashboard_Repository_Members import list_company_members, set_company_logo
from .B01_Dashboard_Schema import UpdateCompanyAssetRequest, UpdateCompanyLogoRequest
from .B01_Dashboard_Scope import _scope_company, require_company_admin

router = APIRouter()


async def _company_asset(session: dict[str, Any], asset_id: int) -> dict[str, Any]:
    asset = await get_company_asset(asset_id)
    if not asset:
        raise HTTPException(status_code=404, detail="자산을 찾을 수 없습니다.")
    _scope_company(session, int(asset["company_id"]))
    return asset


# ---- 회사 공유 도면 자산(로고·서명) — 회사 구성원 누구나 작성·수정, 시스템관리자는 전체 ----


@router.get("/company/assets")
async def company_assets(
    company_id: int | None = Query(None, gt=0),
    session: dict[str, Any] = Depends(verify_session),
):
    return {
        "status": "success",
        "assets": await list_company_assets(_scope_company(session, company_id)),
    }


@router.post("/company/assets")
async def company_add_asset(
    kind: str = Form(...),
    label: str = Form(...),
    user_id: int | None = Form(None, gt=0),
    company_id: int | None = Form(None, gt=0),
    file: UploadFile = File(...),
    session: dict[str, Any] = Depends(verify_session),
):
    kind = kind.upper()
    if kind not in ASSET_KINDS:
        raise HTTPException(status_code=400, detail="자산 종류는 LOGO 또는 SIGNATURE 입니다.")
    label = label.strip()[:100]
    if not label:
        raise HTTPException(status_code=400, detail="이름을 넣어 주세요.")
    suffix = os.path.splitext(file.filename or "")[1].lower()
    if suffix not in ASSET_EXTENSIONS:
        raise HTTPException(status_code=400, detail="png·jpg·webp·svg 그림만 올릴 수 있습니다.")
    blob = await file.read()
    if not blob or len(blob) > ASSET_MAX_BYTES:
        raise HTTPException(status_code=400, detail="그림은 2MB 이하여야 합니다.")
    scoped = _scope_company(session, company_id)
    if user_id and user_id not in {m["id"] for m in await list_company_members(scoped)}:
        raise HTTPException(status_code=400, detail="주인은 같은 회사 구성원이어야 합니다.")
    path = write_company_asset_file(scoped, kind, suffix, blob)
    asset_id = await create_company_asset(
        scoped, kind, label, path, user_id, int(session["user_id"])
    )
    return {"status": "success", "asset_id": asset_id}


@router.put("/company/assets/{asset_id}")
async def company_update_asset(
    asset_id: int,
    payload: UpdateCompanyAssetRequest,
    session: dict[str, Any] = Depends(verify_session),
):
    await _company_asset(session, asset_id)
    await update_company_asset(asset_id, payload.label.strip(), payload.user_id)
    return {"status": "success"}


@router.delete("/company/assets/{asset_id}")
async def company_delete_asset(asset_id: int, session: dict[str, Any] = Depends(verify_session)):
    await _company_asset(session, asset_id)
    await delete_company_asset(asset_id)
    return {"status": "success"}


@router.put("/company/logo")
async def company_set_logo(
    payload: UpdateCompanyLogoRequest,
    company_id: int | None = Query(None, gt=0),
    session: dict[str, Any] = Depends(require_company_admin),
):
    """회사 대표 로고를 지정·변경한다 (2026-09-02 사용자 확정).

    프로젝트가 따로 고르지 않으면 도면은 이 로고를 쓴다.
    """
    scoped = _scope_company(session, company_id)
    if payload.logo_asset_id is not None:
        asset = await get_company_asset(payload.logo_asset_id)
        if not asset or asset["company_id"] != scoped or asset["kind"] != "LOGO":
            raise HTTPException(status_code=400, detail="같은 회사의 로고 자산이어야 합니다.")
    if not await set_company_logo(scoped, payload.logo_asset_id):
        raise HTTPException(status_code=404, detail="회사를 찾을 수 없습니다.")
    return {"status": "success"}


@router.get("/company/assets/{asset_id}/file")
async def company_asset_file(asset_id: int, session: dict[str, Any] = Depends(verify_session)):
    """목록 미리보기용 그림. 도면에는 B07 이 같은 파일을 data URL 로 심는다."""
    asset = await _company_asset(session, asset_id)
    blob = read_stored_asset(asset["file_path"])
    if blob is None:
        raise HTTPException(status_code=404, detail="그림 파일이 없습니다.")
    media_type = mimetypes.guess_type(asset["file_path"])[0] or "application/octet-stream"
    return Response(content=blob, media_type=media_type)