import os

import magic
from distribusi.mappings import FILE_TYPES
from models.distribusi_model import Distribusis
from models.distribusi_file_model import DistribusiFiles
from app import get_app, db
from sqlalchemy.exc import (
    DatabaseError,
    DataError,
    IntegrityError,
    InterfaceError,
    InvalidRequestError,
)

MIME_TYPE = magic.Magic(mime=True)


def _distribusi_file_with_type(distribusi, full_path):
    mime = MIME_TYPE.from_file(full_path)
    type_, subtype = mime.split("/")
    if type_ in FILE_TYPES:
        _add_distribusi_file_to_db(distribusi, full_path, type_)


def _get_distribusi_from_path(path):
    distribusi = Distribusis.query.filter_by(distribusiname=path).first()
    return distribusi


def _add_distribusi_file_to_db(distribusi, full_path, type):
    app = get_app()
    app.logger.info(f"Adding file to database: {full_path} type: {type}")
    distribusi_file = DistribusiFiles.query.filter_by(path=full_path).first()
    if distribusi_file is not None:
        app.logger.error(f"File already in database: {full_path}")
        return
    try:
        new_distribusi_file = DistribusiFiles(
            path=full_path.lstrip("stash/"),
            type=type,
            distribusi=distribusi.id,
        )
        db.session.add(new_distribusi_file)
        db.session.commit()
        return
    except InvalidRequestError:
        db.session.rollback()
        app.logger.error("Something went wrong!")
    except IntegrityError:
        db.session.rollback()
        app.logger.error("File %s already exists!", full_path)
    except DataError:
        db.session.rollback()
        app.logger.error("%s Invalid Entry", full_path)
    except InterfaceError:
        db.session.rollback()
        app.logger.error("Error connecting to the database")
    except DatabaseError:
        db.session.rollback()
        app.logger.error("Error connecting to the database")


def add_distribusi_files_to_db(path):
    distribusi = _get_distribusi_from_path(path)
    path = os.path.join("stash", path)
    for root, dirs, files in os.walk(path, topdown=True):
        files = list(filter(lambda f: not f.startswith("."), files))
        files = list(filter(lambda f: not f.endswith(".html"), files))
        files = list(filter(lambda f: not f.endswith("_thumbnail.jpg"), files))
        files = list(filter(lambda f: not f.endswith("_alttext.txt"), files))
        files = list(
            filter(lambda f: not f.endswith("_dv_description.txt"), files)
        )

        for file in files:
            full_path = os.path.join(root, file)
            distribusi_file = DistribusiFiles.query.filter_by(
                path=full_path
            ).first()
            if distribusi_file is None:
                _distribusi_file_with_type(distribusi, full_path)