moviewyrm/bookwyrm/views/imports/import_data.py

""" import books from another app """
from io import TextIOWrapper

from django.contrib.auth.decorators import login_required
from django.http import HttpResponseBadRequest
from django.shortcuts import redirect
from django.template.response import TemplateResponse
from django.utils.decorators import method_decorator
from django.utils.translation import gettext_lazy as _
from django.views import View

from bookwyrm import forms, models
from bookwyrm.importers import (
    LibrarythingImporter,
    GoodreadsImporter,
    StorygraphImporter,
)

# pylint: disable= no-self-use
@method_decorator(login_required, name="dispatch")
class Import(View):
    """import view"""

    def get(self, request):
        """load import page"""
        return TemplateResponse(
            request,
            "import/import.html",
            {
                "import_form": forms.ImportForm(),
                "jobs": models.ImportJob.objects.filter(user=request.user).order_by(
                    "-created_date"
                ),
            },
        )

    def post(self, request):
        """ingest a goodreads csv"""
        form = forms.ImportForm(request.POST, request.FILES)
        if form.is_valid():
            include_reviews = request.POST.get("include_reviews") == "on"
            privacy = request.POST.get("privacy")
            source = request.POST.get("source")

            importer = None
            if source == "LibraryThing":
                importer = LibrarythingImporter()
            elif source == "Storygraph":
                importer = StorygraphImporter()
            else:
                # Default : Goodreads
                importer = GoodreadsImporter()

            try:
                job = importer.create_job(
                    request.user,
                    TextIOWrapper(
                        request.FILES["csv_file"], encoding=importer.encoding
                    ),
                    include_reviews,
                    privacy,
                )
            except (UnicodeDecodeError, ValueError, KeyError):
                return HttpResponseBadRequest(_("Not a valid csv file"))

            importer.start_import(job)

            return redirect(f"/import/{job.id}")
        return HttpResponseBadRequest()