from typing import List

from .Model import FormFile
from sqlalchemy.orm import Session
from . import Sechemas


def get_file_by_md(db: Session, md: str):
    item = db.query(FormFile).filter_by(md=md).first()
    return item


def add_file(db: Session, data: Sechemas.FormFileCreate):
    new_file = FormFile(**data.dict())
    db.add(new_file)
    db.commit()
    db.refresh(new_file)
    return new_file


def file_get(db: Session, md: str):
    file = db.query(FormFile).filter_by(md=md).first()
    return file


def file_query(db: Session, params: Sechemas.FormFileQuery) -> (int, List[FormFile]):
    query = db.query(FormFile)
    if params.md:
        query.filter(FormFile.md == params.md)
    if params.name:
        query.filter(FormFile.name.like(f'%{params.name}%'))
    if params.user_id:
        query.filter(FormFile.user_id == params.user_id)
    if params.common_type:
        query.filter(FormFile.common_type == params.common_type)
    if params.mime_type:
        query.filter(FormFile.mime_type == params.mime_type)
    if params.file_url:
        query.filter(FormFile.file_url == params.file_url)
    count = query.count()
    page = params.page
    page_size = params.page_size
    if page is not None and page_size is not None:
        query = query.offset((page - 1) * page_size).limit(page_size).all()
    return count, query