from fastapi import APIRouter, Depends, File, HTTPException, Query, UploadFile
from fastapi.responses import FileResponse
from sqlalchemy.orm import Session

from app.database import get_db
from app.models.user import User
from app.schemas.journal import JournalCategoryReorderRequest
from app.security import require_login
from app.services import journal_service

router = APIRouter(prefix="/api/journal", tags=["journal"], dependencies=[Depends(require_login)])


@router.get("/media/{attachment_id}")
def get_media(
    attachment_id: int,
    thumbnail: bool = Query(False),
    db: Session = Depends(get_db),
    current_user: User = Depends(require_login),
):
    attachment = journal_service.get_attachment(db, attachment_id, current_user.id)
    if attachment is None:
        raise HTTPException(status_code=404, detail="첨부파일을 찾을 수 없습니다")

    path = attachment.thumbnail_path if (thumbnail and attachment.thumbnail_path) else attachment.file_path
    return FileResponse(path, filename=attachment.original_filename)


@router.post("/paste-image")
def paste_image(
    file: UploadFile = File(...),
    current_user: User = Depends(require_login),
):
    try:
        filename = journal_service.save_pasted_image(current_user.id, file)
    except ValueError as exc:
        raise HTTPException(status_code=400, detail=str(exc))
    return {"url": f"/api/journal/pasted-media/{filename}"}


@router.get("/pasted-media/{filename}")
def get_pasted_image(filename: str, current_user: User = Depends(require_login)):
    path = journal_service.get_pasted_image_path(current_user.id, filename)
    if path is None:
        raise HTTPException(status_code=404, detail="이미지를 찾을 수 없습니다")
    return FileResponse(path)


@router.post("/categories/reorder")
def reorder_categories(
    data: JournalCategoryReorderRequest,
    db: Session = Depends(get_db),
    current_user: User = Depends(require_login),
):
    journal_service.reorder_categories(db, current_user.id, data.category_ids)
    return {"ok": True}