Badges

badges/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class BadgesConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "badges"

badges/migrations/0001_initial.py

@@ -0,0 +1,50 @@
+# Generated by Django 3.2.5 on 2021-10-20 10:42
+
+from django.db import migrations, models
+import django.db.models.deletion
+import uuid
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('users', '0022_alter_user_secret_hash'),
+        ('comments', '0008_auto_20210911_0827'),
+        ('posts', '0024_postsubscription_type'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Badge',
+            fields=[
+                ('code', models.CharField(max_length=32, primary_key=True, serialize=False, unique=True)),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('title', models.CharField(max_length=64)),
+                ('description', models.CharField(max_length=256, null=True)),
+                ('price_days', models.IntegerField(default=10)),
+                ('is_visible', models.BooleanField(default=True)),
+            ],
+            options={
+                'db_table': 'badges',
+            },
+        ),
+        migrations.CreateModel(
+            name='UserBadge',
+            fields=[
+                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('note', models.TextField(null=True)),
+                ('badge', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='user_badges', to='badges.badge')),
+                ('comment', models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='comment_badges', to='comments.comment')),
+                ('from_user', models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='from_badges', to='users.user')),
+                ('post', models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='post_badges', to='posts.post')),
+                ('to_user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='to_badges', to='users.user')),
+            ],
+            options={
+                'db_table': 'user_badges',
+                'unique_together': {('from_user', 'to_user', 'badge', 'comment_id'), ('from_user', 'to_user', 'badge', 'post_id')},
+            },
+        ),
+    ]

badges/migrations/0002_auto_20211022_0858.py

@@ -0,0 +1,28 @@
+# Generated by Django 3.2.5 on 2021-10-22 08:58
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('badges', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.RunSQL("""
+            INSERT INTO "badges"("code","created_at","title","description","price_days","is_visible")
+            VALUES
+            ('bad','2021-10-15 11:37:53.514167+02','Так плохо, что даже хорошо',NULL,110,FALSE),
+            ('bmw','2021-10-15 11:37:53.514167+02','Беха','Выдать автору беху по программе помощи миллионерам',150,TRUE),
+            ('cool','2021-10-15 11:37:53.514167+02','ОХУЕННО','Вот такой контент я хочу видеть в Клубе!',40,TRUE),
+            ('cry','2021-10-15 11:37:53.514167+02','Я не плачу...','...это дождь',80,TRUE),
+            ('dolor','2021-10-15 11:37:53.514167+02','Держи долор','Его заберёт налоговая, но нам останется ХоРоШеЕ НаСтРоЕнИе!',30,TRUE),
+            ('hug','2021-10-15 11:37:53.514167+02','Дай обниму',NULL,60,TRUE),
+            ('insight','2021-10-15 11:37:53.514167+02','Я понял!','Моя жизнь больше не будет прежней',50,TRUE),
+            ('lov','2021-10-15 11:37:53.514167+02','Супер-любовь','За восстановление веры в человечество',80,TRUE),
+            ('faang','2021-10-15 11:37:53.514167+02','Оффер в FAANG','Я бы тебя нанял',200,TRUE),
+            ('year','2021-10-15 11:37:53.514167+02','Пост Года','Лучшее, что я читал в этом году',365,TRUE),
+            ('lol','2021-10-15 11:37:53.514167+02','Как же я ору',NULL,60,TRUE);
+        """)
+    ]

badges/models.py

@@ -0,0 +1,136 @@
+import math
+from datetime import timedelta
+from uuid import uuid4
+
+from django.db import models, transaction, IntegrityError
+from django.db.models import F, Count
+
+from club.exceptions import InsufficientFunds, BadRequest, ContentDuplicated
+from comments.models import Comment
+from posts.models.post import Post
+from users.models.user import User
+
+
+class Badge(models.Model):
+    code = models.CharField(primary_key=True, max_length=32, null=False, unique=True)
+    created_at = models.DateTimeField(auto_now_add=True)
+
+    title = models.CharField(max_length=64, null=False)
+    description = models.CharField(max_length=256, null=True)
+    price_days = models.IntegerField(default=10)
+    is_visible = models.BooleanField(default=True)
+
+    class Meta:
+        db_table = "badges"
+        ordering = ["price_days", "code"]
+
+    @classmethod
+    def visible_objects(cls):
+        return cls.objects.filter(is_visible=True)
+
+
+class UserBadge(models.Model):
+    id = models.UUIDField(primary_key=True, default=uuid4, editable=False)
+
+    badge = models.ForeignKey(Badge, related_name="user_badges", on_delete=models.CASCADE)
+    created_at = models.DateTimeField(auto_now_add=True)
+
+    from_user = models.ForeignKey(User, related_name="from_badges", null=True, on_delete=models.SET_NULL)
+    to_user = models.ForeignKey(User, related_name="to_badges", on_delete=models.CASCADE)
+    post = models.ForeignKey(Post, related_name="post_badges", null=True, on_delete=models.SET_NULL)
+    comment = models.ForeignKey(Comment, related_name="comment_badges", null=True, on_delete=models.SET_NULL)
+
+    note = models.TextField(null=True)
+
+    class Meta:
+        db_table = "user_badges"
+        unique_together = [
+            ("from_user", "to_user", "badge", "post_id"),
+            ("from_user", "to_user", "badge", "comment_id"),
+        ]
+
+    @classmethod
+    def create_user_badge(cls, badge, from_user, to_user, post=None, comment=None, note=None):
+        if from_user == to_user:
+            raise BadRequest(
+                title="🛑 Нельзя дарить награды самому себе",
+                message="Это что такое-то вообще!"
+            )
+
+        if badge.price_days >= from_user.membership_days_left():
+            raise InsufficientFunds(
+                title="💸 Недостаточно средств :(",
+                message=f"Вы не можете подарить юзеру эту награду, "
+                        f"так как у вас осталось {math.floor(from_user.membership_days_left())} дней членства, "
+                        f"а награда стоит {badge.price_days}. "
+                        f"Продлите членство в настройках своего профиля."
+            )
+
+        with transaction.atomic():
+            # store user badge
+            try:
+                user_badge = UserBadge.objects.create(
+                    badge=badge,
+                    from_user=from_user,
+                    to_user=to_user,
+                    post=post,
+                    comment=comment,
+                    note=note,
+                )
+            except IntegrityError:
+                raise ContentDuplicated(
+                    title="🛑 Вы уже дарили награду за этот пост или комментарий",
+                    message="Повторно награды дарить нельзя. Но вы можете подарить другую награду."
+                )
+
+            # deduct days balance from profile
+            User.objects\
+                .filter(id=from_user.id)\
+                .update(
+                    membership_expires_at=F("membership_expires_at") - timedelta(days=badge.price_days)
+                )
+
+            # add badge to post/comment metadata (just for caching)
+            comment_or_post = comment or post
+            metadata = comment_or_post.metadata or {}
+            badges = metadata.get("badges") or {}
+            if badge.code not in badges:
+                # add new badge
+                badges[badge.code] = {
+                    "title": badge.title,
+                    "description": badge.description,
+                    "count": 1,
+                }
+            else:
+                # increment badge count for this post
+                badges[badge.code]["count"] += 1
+
+            # update only that metadata (do not use .save(), it saves all fields and can cause side-effects)
+            metadata["badges"] = badges
+            type(comment_or_post).objects.filter(id=comment_or_post.id).update(metadata=metadata)
+
+        return user_badge
+
+    @classmethod
+    def user_badges(cls, user):
+        return UserBadge.objects.filter(to_user=user).select_related("badge").order_by("-created_at")
+
+    @classmethod
+    def user_badges_grouped(cls, user):
+        badges = {
+            badge.code: badge for badge in Badge.visible_objects()
+        }
+
+        badge_groups = UserBadge.objects\
+            .filter(to_user=user)\
+            .order_by("badge_id")\
+            .values("badge_id")\
+            .annotate(count=Count("badge_id"))
+
+        return {
+            badge_group["badge_id"]: {
+                "title": badges[badge_group["badge_id"]].title,
+                "description": badges[badge_group["badge_id"]].description,
+                "count": badge_group["count"],
+            } for badge_group in badge_groups
+        }

badges/views.py

@@ -0,0 +1,90 @@
+from django.conf import settings
+from django.shortcuts import get_object_or_404, render
+
+from auth.helpers import auth_required
+from badges.models import Badge, UserBadge
+from club.exceptions import BadRequest
+from comments.models import Comment
+from posts.models.post import Post
+
+
+@auth_required
+def create_badge_for_post(request, post_slug):
+    post = get_object_or_404(Post, slug=post_slug)
+    if post.deleted_at:
+        raise BadRequest(
+            title="😵 Пост удалён",
+            message="Нельзя давать награды за удалённые посты"
+        )
+
+    if request.method != "POST":
+        if request.me.membership_days_left() < settings.MIN_DAYS_TO_GIVE_BADGES:
+            return render(request, "badges/messages/insufficient_funds.html")
+
+        return render(request, "badges/create.html", {
+            "post": post,
+            "badges": Badge.visible_objects().all(),
+        })
+
+    badge_code = request.POST.get("badge_code")
+    badge = Badge.objects.filter(code=badge_code).first()
+    if not badge or not badge.is_visible:
+        raise BadRequest(
+            title="🙅‍♀️ Бейджик недоступен",
+            message="Данную награду пока нельзя выдавать"
+        )
+
+    note = (request.POST.get("note") or "")[:1000]
+    user_badge = UserBadge.create_user_badge(
+        badge=badge,
+        from_user=request.me,
+        to_user=post.author,
+        post=post,
+        note=note,
+    )
+
+    return render(request, "badges/messages/success.html", {
+        "user_badge": user_badge,
+        "show_funds_warning": request.me.membership_days_left() - user_badge.badge.price_days < settings.MIN_DAYS_TO_GIVE_BADGES,
+    })
+
+
+@auth_required
+def create_badge_for_comment(request, comment_id):
+    comment = get_object_or_404(Comment, id=comment_id)
+    if comment.is_deleted:
+        raise BadRequest(
+            title="😵 Комментарий удалён",
+            message="Нельзя выдавать награды за удалённые комменты"
+        )
+
+    if request.method != "POST":
+        if request.me.membership_days_left() < settings.MIN_DAYS_TO_GIVE_BADGES:
+            return render(request, "badges/messages/insufficient_funds.html")
+
+        return render(request, "badges/create.html", {
+            "comment": comment,
+            "badges": Badge.visible_objects().all(),
+        })
+
+    badge_code = request.POST.get("badge_code")
+    badge = Badge.objects.filter(code=badge_code).first()
+    if not badge or not badge.is_visible:
+        raise BadRequest(
+            title="🙅‍♀️ Бейджик недоступен",
+            message="Данную награду пока нельзя выдавать"
+        )
+
+    note = (request.POST.get("note") or "")[:1000]
+    user_badge = UserBadge.create_user_badge(
+        badge=badge,
+        from_user=request.me,
+        to_user=comment.author,
+        comment=comment,
+        note=note,
+    )
+
+    return render(request, "badges/messages/success.html", {
+        "user_badge": user_badge,
+        "show_funds_warning": request.me.membership_days_left() - user_badge.badge.price_days < settings.MIN_DAYS_TO_GIVE_BADGES,
+    })

club/exceptions.py

@@ -41,6 +41,11 @@ class ContentDuplicated(ClubException):
                       "Проверьте всё ли в порядке."
 
 
+class InsufficientFunds(ClubException):
+    default_code = "insufficient-funds"
+    default_title = "Недостаточно средств"
+
+
 class URLParsingException(ClubException):
     default_code = "url-parser-exception"
     default_title = "Не удалось распарсить URL"
@@ -53,6 +58,11 @@ class InvalidCode(ClubException):
     default_message = "Введите или запросите его еще раз. Через несколько неправильных попыток коды удаляются"
 
 
+class ApiInsufficientFunds(ClubException):
+    default_code = "api-insufficient-funds"
+    default_title = "Недостаточно средств"
+
+
 class ApiException(ClubException):
     default_message = None
 
@@ -65,3 +75,4 @@ class ApiAuthRequired(ApiException):
 class ApiAccessDenied(ApiException):
     default_code = "api-access-denied"
     default_title = "Access Denied"
+

club/settings.py

@@ -37,7 +37,7 @@
     "notifications.apps.NotificationsConfig",
     "search.apps.SearchConfig",
     "gdpr.apps.GdprConfig",
-    # "badges.apps.BadgesConfig",
+    "badges.apps.BadgesConfig",
     "simple_history",
     "django_q",
     "webpack_loader",
@@ -183,6 +183,7 @@
 PEOPLE_PAGE_SIZE = 18
 PROFILE_COMMENTS_PAGE_SIZE = 100
 PROFILE_POSTS_PAGE_SIZE = 30
+PROFILE_BADGES_PAGE_SIZE = 50
 
 COMMUNITY_APPROVE_UPVOTES = 35
 
@@ -255,6 +256,8 @@
 STRIPE_CANCEL_URL = APP_HOST + "/join/"
 STRIPE_SUCCESS_URL = APP_HOST + "/monies/done/?reference={CHECKOUT_SESSION_ID}"
 
+WEBHOOK_SECRETS = set(os.getenv("WEBHOOK_SECRETS", "").split(","))
+
 COMMENT_EDITABLE_TIMEDELTA = timedelta(hours=24)
 COMMENT_DELETABLE_TIMEDELTA = timedelta(days=10 * 365)
 COMMENT_DELETABLE_BY_POST_AUTHOR_TIMEDELTA = timedelta(days=14)
@@ -266,6 +269,7 @@
 POST_HOTNESS_PERIOD = timedelta(days=5)  # time window for hotness recalculation script
 MIN_FRIEND_COMMENT_LENGTH = 250  # notify comments only from a certain length
 MAX_COMMENTS_FOR_DELETE_VS_CLEAR = 10  # number of comments after which the post cannot be deleted
+MIN_DAYS_TO_GIVE_BADGES = 35  # minimum "days" balance to buy and gift any badge
 CLEARED_POST_TEXT = "```\n" \
     "😥 Этот пост был удален самим автором и от него остались лишь комментарии участников. " \
     "Если вы хотите приютить и развить эту тему как новый автор, напишите модераторам Клуба: moderator@vas3k.club." \
@@ -278,8 +282,6 @@
 CHATS_GUIDE_URL = "https://vas3k.club/post/9542/"
 PEOPLE_GUIDE_URL = "https://vas3k.club/post/2584/"
 
-WEBHOOK_SECRETS = set(os.getenv("WEBHOOK_SECRETS", "").split(","))
-
 WEBPACK_LOADER = {
     "DEFAULT": {
         "CACHE": not DEBUG,