datacheck/core/validation.py

'''


    @author: olivier.massot, sept. 2018
'''
import zipfile

from path import Path, TempDir

class ValidationReport():
    def __init__(self, title = ""):
        self.title = title
        self.errors = {}
        self.valid = True
        
class BaseValidator():
    
    @classmethod
    def submit(cls, subject):    
        """ prends un dossier ou une archive en entrée et vérifie son contenu  """
        subject = Path(subject)
        
        if subject.isfile():
            with TempDir() as dirname:
                zip_ref = zipfile.ZipFile(subject, 'r')
                zip_ref.extractall(dirname)
                zip_ref.close()
                if Path(dirname / subject.stem).isdir(): # cas où l'archive contient un dossier qui lui-même contient les fichiers
                    dirname /= subject.stem
                return cls._submit_folder(dirname)
            
        elif subject.isdir():
            return cls._submit_folder(subject)
        else:
            raise FileNotFoundError(f"Impossible de trouver le fichier ou répertoire: {subject}")

    @classmethod
    def _submit_folder(cls, folder):
        raise NotImplementedError()