Files
vrobbler/vrobbler/apps/books/models.py

259 lines
8.6 KiB
Python

import logging
from datetime import timedelta
from uuid import uuid4
import requests
from books.openlibrary import (
lookup_author_from_openlibrary,
lookup_book_from_openlibrary,
)
from django.conf import settings
from django.contrib.auth import get_user_model
from django.core.files.base import ContentFile
from django.db import models
from django.urls import reverse
from django_extensions.db.models import TimeStampedModel
from scrobbles.mixins import LongPlayScrobblableMixin, ScrobblableMixin
from scrobbles.utils import get_scrobbles_for_media
logger = logging.getLogger(__name__)
User = get_user_model()
BNULL = {"blank": True, "null": True}
class Author(TimeStampedModel):
name = models.CharField(max_length=255)
uuid = models.UUIDField(default=uuid4, editable=False, **BNULL)
openlibrary_id = models.CharField(max_length=255, **BNULL)
headshot = models.ImageField(upload_to="books/authors/", **BNULL)
bio = models.TextField(**BNULL)
wikipedia_url = models.CharField(max_length=255, **BNULL)
isni = models.CharField(max_length=255, **BNULL)
wikidata_id = models.CharField(max_length=255, **BNULL)
goodreads_id = models.CharField(max_length=255, **BNULL)
librarything_id = models.CharField(max_length=255, **BNULL)
amazon_id = models.CharField(max_length=255, **BNULL)
def __str__(self):
return f"{self.name}"
def fix_metadata(self, data_dict: dict = {}):
if not data_dict and self.openlibrary_id:
data_dict = lookup_author_from_openlibrary(self.openlibrary_id)
if not data_dict or not data_dict.get("name"):
return
headshot_url = data_dict.pop("author_headshot_url", "")
Author.objects.filter(pk=self.id).update(**data_dict)
self.refresh_from_db()
if headshot_url:
r = requests.get(headshot_url)
if r.status_code == 200:
fname = f"{self.name}_{self.uuid}.jpg"
self.headshot.save(fname, ContentFile(r.content), save=True)
class Book(LongPlayScrobblableMixin):
COMPLETION_PERCENT = getattr(settings, "BOOK_COMPLETION_PERCENT", 95)
AVG_PAGE_READING_SECONDS = getattr(
settings, "AVERAGE_PAGE_READING_SECONDS", 60
)
title = models.CharField(max_length=255)
authors = models.ManyToManyField(Author)
goodreads_id = models.CharField(max_length=255, **BNULL)
koreader_id = models.IntegerField(**BNULL)
koreader_authors = models.CharField(max_length=255, **BNULL)
koreader_md5 = models.CharField(max_length=255, **BNULL)
isbn = models.CharField(max_length=255, **BNULL)
pages = models.IntegerField(**BNULL)
language = models.CharField(max_length=4, **BNULL)
first_publish_year = models.IntegerField(**BNULL)
first_sentence = models.CharField(max_length=255, **BNULL)
openlibrary_id = models.CharField(max_length=255, **BNULL)
cover = models.ImageField(upload_to="books/covers/", **BNULL)
def __str__(self):
return f"{self.title} by {self.author}"
@property
def subtitle(self):
return f" by {self.author}"
@property
def primary_image_url(self) -> str:
url = ""
if self.cover:
url = self.cover.url
return url
def get_start_url(self):
return reverse("scrobbles:start", kwargs={"uuid": self.uuid})
def get_absolute_url(self):
return reverse("books:book_detail", kwargs={"slug": self.uuid})
def fix_metadata(self, force_update=False):
if not self.openlibrary_id or force_update:
author_name = ""
if self.author:
author_name = self.author.name
book_dict = lookup_book_from_openlibrary(self.title, author_name)
if not book_dict:
logger.warn(f"Book not found in OL {self.title}")
return
cover_url = book_dict.pop("cover_url", "")
ol_author_id = book_dict.pop("ol_author_id", "")
ol_author_name = book_dict.pop("ol_author_name", "")
if book_dict.get("pages") == None:
book_dict.pop("pages")
ol_title = book_dict.get("title", "")
if ol_title.lower() != self.title.lower():
logger.warn(
f"OL and KoReader disagree on this book title {self.title} != {ol_title}"
)
Book.objects.filter(pk=self.id).update(**book_dict)
self.refresh_from_db()
if cover_url:
r = requests.get(cover_url)
if r.status_code == 200:
fname = f"{self.title}_{self.uuid}.jpg"
self.cover.save(fname, ContentFile(r.content), save=True)
if self.pages:
self.run_time_seconds = self.pages * int(
self.AVG_PAGE_READING_SECONDS
)
self.save()
@property
def author(self):
return self.authors.first()
@property
def pages_for_completion(self) -> int:
if not self.pages:
logger.warn(f"{self} has no pages, no completion percentage")
return 0
return int(self.pages * (self.COMPLETION_PERCENT / 100))
def update_long_play_seconds(self):
"""Check page timestamps and duration and update"""
if self.page_set.all():
...
def progress_for_user(self, user_id: int) -> int:
"""Used to keep track of whether the book is complete or not"""
user = User.objects.get(id=user_id)
last_scrobble = get_scrobbles_for_media(self, user).last()
progress = 0
if last_scrobble:
progress = int((last_scrobble.book_pages_read / self.pages) * 100)
return progress
@classmethod
def find_or_create(cls, data_dict: dict) -> "Game":
from books.utils import update_or_create_book
return update_or_create_book(
data_dict.get("title"), data_dict.get("author")
)
class Page(TimeStampedModel):
user = models.ForeignKey(User, on_delete=models.CASCADE)
book = models.ForeignKey(Book, on_delete=models.CASCADE)
number = models.IntegerField()
start_time = models.DateTimeField(**BNULL)
end_time = models.DateTimeField(**BNULL)
duration_seconds = models.IntegerField(**BNULL)
class Meta:
unique_together = (
"book",
"number",
)
def __str__(self):
return f"Page {self.number} of {self.book.pages} in {self.book.title}"
def save(self, *args, **kwargs):
if not self.end_time and self.duration_seconds:
self._set_end_time()
return super(Page, self).save(*args, **kwargs)
@property
def next(self):
page = self.book.page_set.filter(number=self.number + 1).first()
if not page:
page = (
self.book.page_set.filter(created__gt=self.created)
.order_by("created")
.first()
)
return page
@property
def previous(self):
page = self.book.page_set.filter(number=self.number - 1).first()
if not page:
page = (
self.book.page_set.filter(created__lt=self.created)
.order_by("-created")
.first()
)
return page
@property
def seconds_to_next_page(self) -> int:
seconds = 999999 # Effectively infnity time as we have no next
if not self.end_time:
self._set_end_time()
if self.next:
seconds = (self.next.start_time - self.end_time).seconds
return seconds
@property
def is_scrobblable(self) -> bool:
"""A page defines the start of a scrobble if the seconds to next page
are greater than an hour, or 3600 seconds, and it's not a single page,
so the next seconds to next_page is less than an hour as well.
As a special case, the first recorded page is a scrobble, so we establish
when the book was started.
"""
is_scrobblable = False
over_an_hour_since_last_page = False
if not self.previous:
is_scrobblable = True
if self.previous:
over_an_hour_since_last_page = (
self.previous.seconds_to_next_page >= 3600
)
blip = self.seconds_to_next_page >= 3600
if over_an_hour_since_last_page and not blip:
is_scrobblable = True
return is_scrobblable
def _set_end_time(self) -> None:
if self.end_time:
return
self.end_time = self.start_time + timedelta(
seconds=self.duration_seconds
)
self.save(update_fields=["end_time"])