291 lines
9.1 KiB
Python
291 lines
9.1 KiB
Python
import re
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import uuid
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from functools import cached_property
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from typing import TYPE_CHECKING
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from django.conf import settings
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from django.core.signing import b62_decode, b62_encode
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from django.db import connection, models
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from django.db.models import Avg, CharField, Count, Q
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from django.utils import timezone
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from django.utils.translation import gettext_lazy as _
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from polymorphic.models import PolymorphicModel
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from catalog.common.models import AvailableItemCategory, Item, ItemCategory
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from catalog.models import item_categories, item_content_types
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from takahe.utils import Takahe
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from users.models import APIdentity, User
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from .mixins import UserOwnedObjectMixin
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if TYPE_CHECKING:
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from takahe.models import Post
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from .like import Like
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class VisibilityType(models.IntegerChoices):
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Public = 0, _("Public") # type:ignore[reportCallIssue]
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Follower_Only = 1, _("Followers Only") # type:ignore[reportCallIssue]
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Private = 2, _("Mentioned Only") # type:ignore[reportCallIssue]
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def q_owned_piece_visible_to_user(viewing_user: User, owner: APIdentity):
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if not viewing_user or not viewing_user.is_authenticated:
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if owner.anonymous_viewable:
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return Q(owner=owner, visibility=0)
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else:
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return Q(pk__in=[])
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viewer = viewing_user.identity
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if viewer == owner:
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return Q(owner=owner)
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# elif viewer.is_blocked_by(owner):
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# return Q(pk__in=[])
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elif viewer.is_following(owner):
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return Q(owner=owner, visibility__in=[0, 1])
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else:
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return Q(owner=owner, visibility=0)
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def max_visiblity_to_user(viewing_user: User, owner: APIdentity):
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if not viewing_user or not viewing_user.is_authenticated:
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return 0
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viewer = viewing_user.identity
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if viewer == owner:
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return 2
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elif viewer.is_following(owner):
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return 1
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else:
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return 0
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def q_piece_visible_to_user(viewing_user: User):
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if not viewing_user or not viewing_user.is_authenticated:
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return Q(visibility=0, owner__anonymous_viewable=True)
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viewer = viewing_user.identity
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return (
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Q(visibility=0)
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| Q(owner_id__in=viewer.following, visibility=1)
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| Q(owner_id=viewer.pk)
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) & ~Q(owner_id__in=viewer.ignoring)
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def q_piece_in_home_feed_of_user(viewing_user: User):
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viewer = viewing_user.identity
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return Q(owner_id__in=viewer.following, visibility__lt=2) | Q(owner_id=viewer.pk)
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def q_item_in_category(item_category: ItemCategory):
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classes = item_categories()[item_category]
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# q = Q(item__instance_of=classes[0])
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# for cls in classes[1:]:
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# q = q | Q(instance_of=cls)
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# return q
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ct = item_content_types()
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contenttype_ids = [ct[cls] for cls in classes]
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return Q(item__polymorphic_ctype__in=contenttype_ids)
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# class ImportStatus(Enum):
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# QUEUED = 0
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# PROCESSING = 1
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# FINISHED = 2
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# class ImportSession(models.Model):
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# owner = models.ForeignKey(APIdentity, on_delete=models.CASCADE)
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# status = models.PositiveSmallIntegerField(default=ImportStatus.QUEUED)
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# importer = models.CharField(max_length=50)
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# file = models.CharField()
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# default_visibility = models.PositiveSmallIntegerField()
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# total = models.PositiveIntegerField()
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# processed = models.PositiveIntegerField()
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# skipped = models.PositiveIntegerField()
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# imported = models.PositiveIntegerField()
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# failed = models.PositiveIntegerField()
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# logs = models.JSONField(default=list)
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# created_time = models.DateTimeField(auto_now_add=True)
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# edited_time = models.DateTimeField(auto_now=True)
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# class Meta:
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# indexes = [
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# models.Index(fields=["owner", "importer", "created_time"]),
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# ]
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class Piece(PolymorphicModel, UserOwnedObjectMixin):
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if TYPE_CHECKING:
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likes: models.QuerySet["Like"]
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url_path = "p" # subclass must specify this
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uid = models.UUIDField(default=uuid.uuid4, editable=False, db_index=True)
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local = models.BooleanField(default=True)
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posts = models.ManyToManyField(
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"takahe.Post", related_name="pieces", through="PiecePost"
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)
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@property
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def uuid(self):
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return b62_encode(self.uid.int)
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@property
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def url(self):
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return f"/{self.url_path}/{self.uuid}" if self.url_path else None
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@property
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def absolute_url(self):
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return (settings.SITE_INFO["site_url"] + self.url) if self.url_path else None
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@property
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def api_url(self):
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return f"/api/{self.url}" if self.url_path else None
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@property
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def shared_link(self):
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return Takahe.get_post_url(self.latest_post.pk) if self.latest_post else None
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@property
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def like_count(self):
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return (
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Takahe.get_post_stats(self.latest_post.pk).get("likes", 0)
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if self.latest_post
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else 0
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)
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def is_liked_by(self, identity):
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return self.latest_post and Takahe.post_liked_by(
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self.latest_post.pk, identity.pk
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)
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@property
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def reply_count(self):
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return (
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Takahe.get_post_stats(self.latest_post.pk).get("replies", 0)
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if self.latest_post
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else 0
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)
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def get_replies(self, viewing_identity):
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return Takahe.get_replies_for_posts(
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self.all_post_ids, viewing_identity.pk if viewing_identity else None
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)
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@classmethod
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def get_by_url(cls, url_or_b62):
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b62 = url_or_b62.strip().split("/")[-1]
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if len(b62) not in [21, 22]:
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r = re.search(r"[A-Za-z0-9]{21,22}", url_or_b62)
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if r:
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b62 = r[0]
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try:
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obj = cls.objects.get(uid=uuid.UUID(int=b62_decode(b62)))
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except Exception:
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obj = None
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return obj
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@classmethod
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def get_by_post_id(cls, post_id: int):
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pp = PiecePost.objects.filter(post_id=post_id).first()
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return pp.piece if pp else None
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@classmethod
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def update_by_ap_object(cls, owner, item, obj, post_id, visibility):
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raise NotImplementedError("subclass must implement this")
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@property
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def ap_object(self):
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raise NotImplementedError("subclass must implement this")
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def link_post_id(self, post_id: int):
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PiecePost.objects.get_or_create(piece=self, post_id=post_id)
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def clear_post_ids(self):
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PiecePost.objects.filter(piece=self).delete()
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@cached_property
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def latest_post_id(self):
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# post id is ordered by their created time
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pp = PiecePost.objects.filter(piece=self).order_by("-post_id").first()
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return pp.post_id if pp else None
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@cached_property
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def latest_post(self):
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pk = self.latest_post_id
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return Takahe.get_post(pk) if pk else None
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@cached_property
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def all_post_ids(self):
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post_ids = list(
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PiecePost.objects.filter(piece=self).values_list("post_id", flat=True)
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)
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return post_ids
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class PiecePost(models.Model):
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post_id: int
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piece = models.ForeignKey(Piece, on_delete=models.CASCADE)
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post = models.ForeignKey(
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"takahe.Post", db_constraint=False, db_index=True, on_delete=models.CASCADE
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)
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class Meta:
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constraints = [
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models.UniqueConstraint(fields=["piece", "post"], name="unique_piece_post"),
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]
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class PieceInteraction(models.Model):
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target = models.ForeignKey(
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Piece, on_delete=models.CASCADE, related_name="interactions"
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)
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target_type = models.CharField(max_length=50)
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interaction_type = models.CharField(max_length=50)
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identity = models.ForeignKey(
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APIdentity, on_delete=models.CASCADE, related_name="interactions"
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)
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created_time = models.DateTimeField(default=timezone.now)
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class Meta:
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constraints = [
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models.UniqueConstraint(
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fields=["identity", "interaction_type", "target"],
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name="unique_interaction",
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),
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]
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indexes = [
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models.Index(fields=["identity", "interaction_type", "created_time"]),
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models.Index(fields=["target", "interaction_type", "created_time"]),
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]
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class Content(Piece):
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owner = models.ForeignKey(APIdentity, on_delete=models.PROTECT)
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visibility = models.PositiveSmallIntegerField(
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default=0
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) # 0: Public / 1: Follower only / 2: Self only # type:ignore
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created_time = models.DateTimeField(default=timezone.now)
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edited_time = models.DateTimeField(auto_now=True)
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metadata = models.JSONField(default=dict)
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item = models.ForeignKey(Item, on_delete=models.PROTECT)
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remote_id = models.CharField(max_length=200, null=True, default=None)
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def __str__(self):
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return f"{self.__class__.__name__}:{self.uuid}@{self.item}"
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class Meta:
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abstract = True
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class Debris(Content):
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class_name = CharField(max_length=50)
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@classmethod
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def create_from_piece(cls, c: Content):
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return cls.objects.create(
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class_name=c.__class__.__name__,
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owner=c.owner,
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visibility=c.visibility,
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created_time=c.created_time,
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metadata=c.ap_object,
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item=c.item,
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remote_id=c.remote_id if hasattr(c, "remote_id") else None,
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)
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