🐐

.gitignore

@@ -1,3 +1,4 @@
 .vscode/
 __pycache__/
 .svelte-kit/
+versions/

backend/alembic.ini

@@ -0,0 +1,149 @@
+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts.
+# this is typically a path given in POSIX (e.g. forward slashes)
+# format, relative to the token %(here)s which refers to the location of this
+# ini file
+script_location = %(here)s/alembic
+
+# template used to generate migration file names; The default value is %%(rev)s_%%(slug)s
+# Uncomment the line below if you want the files to be prepended with date and time
+# see https://alembic.sqlalchemy.org/en/latest/tutorial.html#editing-the-ini-file
+# for all available tokens
+# file_template = %%(year)d_%%(month).2d_%%(day).2d_%%(hour).2d%%(minute).2d-%%(rev)s_%%(slug)s
+# Or organize into date-based subdirectories (requires recursive_version_locations = true)
+# file_template = %%(year)d/%%(month).2d/%%(day).2d_%%(hour).2d%%(minute).2d_%%(second).2d_%%(rev)s_%%(slug)s
+
+# sys.path path, will be prepended to sys.path if present.
+# defaults to the current working directory.  for multiple paths, the path separator
+# is defined by "path_separator" below.
+prepend_sys_path = .
+
+
+# timezone to use when rendering the date within the migration file
+# as well as the filename.
+# If specified, requires the tzdata library which can be installed by adding
+# `alembic[tz]` to the pip requirements.
+# string value is passed to ZoneInfo()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; This defaults
+# to <script_location>/versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path.
+# The path separator used here should be the separator specified by "path_separator"
+# below.
+# version_locations = %(here)s/bar:%(here)s/bat:%(here)s/alembic/versions
+
+# path_separator; This indicates what character is used to split lists of file
+# paths, including version_locations and prepend_sys_path within configparser
+# files such as alembic.ini.
+# The default rendered in new alembic.ini files is "os", which uses os.pathsep
+# to provide os-dependent path splitting.
+#
+# Note that in order to support legacy alembic.ini files, this default does NOT
+# take place if path_separator is not present in alembic.ini.  If this
+# option is omitted entirely, fallback logic is as follows:
+#
+# 1. Parsing of the version_locations option falls back to using the legacy
+#    "version_path_separator" key, which if absent then falls back to the legacy
+#    behavior of splitting on spaces and/or commas.
+# 2. Parsing of the prepend_sys_path option falls back to the legacy
+#    behavior of splitting on spaces, commas, or colons.
+#
+# Valid values for path_separator are:
+#
+# path_separator = :
+# path_separator = ;
+# path_separator = space
+# path_separator = newline
+#
+# Use os.pathsep. Default configuration used for new projects.
+path_separator = os
+
+# set to 'true' to search source files recursively
+# in each "version_locations" directory
+# new in Alembic version 1.10
+# recursive_version_locations = false
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+# database URL.  This is consumed by the user-maintained env.py script only.
+# other means of configuring database URLs may be customized within the env.py
+# file.
+sqlalchemy.url = postgresql://wikitcg:password@localhost/wikitcg
+
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts.  See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, against the "black" entrypoint
+# hooks = black
+# black.type = console_scripts
+# black.entrypoint = black
+# black.options = -l 79 REVISION_SCRIPT_FILENAME
+
+# lint with attempts to fix using "ruff" - use the module runner, against the "ruff" module
+# hooks = ruff
+# ruff.type = module
+# ruff.module = ruff
+# ruff.options = check --fix REVISION_SCRIPT_FILENAME
+
+# Alternatively, use the exec runner to execute a binary found on your PATH
+# hooks = ruff
+# ruff.type = exec
+# ruff.executable = ruff
+# ruff.options = check --fix REVISION_SCRIPT_FILENAME
+
+# Logging configuration.  This is also consumed by the user-maintained
+# env.py script only.
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARNING
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARNING
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

backend/alembic/README

@@ -0,0 +1 @@
+Generic single-database configuration.

backend/alembic/env.py

@@ -0,0 +1,79 @@
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+from models import Base
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+target_metadata = Base.metadata
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline() -> None:
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection, target_metadata=target_metadata
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

backend/alembic/script.py.mako

@@ -0,0 +1,28 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, Sequence[str], None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    ${downgrades if downgrades else "pass"}

backend/auth.py

@@ -0,0 +1,29 @@
+import logging
+from datetime import datetime, timedelta
+from jose import JWTError, jwt
+from passlib.context import CryptContext
+
+logger = logging.getLogger("app")
+
+SECRET_KEY = "changethis"
+ALGORITHM = "HS256"
+ACCESS_TOKEN_EXPIRE_MINUTES = 60 * 24 * 30  # 1 month
+
+pwd_context = CryptContext(schemes=["bcrypt"])
+
+def hash_password(password: str) -> str:
+    return pwd_context.hash(password)
+
+def verify_password(plain: str, hashed: str) -> bool:
+    return pwd_context.verify(plain, hashed)
+
+def create_access_token(user_id: str) -> str:
+    expire = datetime.now() + timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES)
+    return jwt.encode({"sub": user_id, "exp": expire}, SECRET_KEY, algorithm=ALGORITHM)
+
+def decode_access_token(token: str) -> str | None:
+    try:
+        payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
+        return payload.get("sub")
+    except JWTError:
+        return None

backend/card.py

@@ -1,3 +1,4 @@
+import logging
 from math import sqrt, cbrt
 from enum import Enum
 from typing import NamedTuple
@@ -5,6 +6,8 @@ from urllib.parse import quote
 from datetime import datetime, timedelta
 from time import sleep
 
+logger = logging.getLogger("app")
+
 class CardType(Enum):
   other = 0
   person = 1
@@ -15,6 +18,7 @@ class CardType(Enum):
   group = 6
   science_thing = 7
   vehicle = 8
+  business = 9
 
 class CardRarity(Enum):
   common = 0
@@ -94,6 +98,7 @@ WIKIDATA_INSTANCE_TYPE_MAP = {
   "Q482994":    CardType.artwork,       # album
   "Q134556":    CardType.artwork,       # single
   "Q169930":    CardType.artwork,       # EP
+  "Q196600":    CardType.artwork,       # media franchise
   "Q202866":    CardType.artwork,       # animated film
   "Q734698":    CardType.artwork,       # collectible card game
   "Q506240":    CardType.artwork,       # television film
@@ -108,9 +113,11 @@ WIKIDATA_INSTANCE_TYPE_MAP = {
   "Q47461344":  CardType.artwork,       # written work
   "Q71631512":  CardType.artwork,       # tabletop role-playing game supplement
   "Q21198342":  CardType.artwork,       # manga series
+  "Q58483083":  CardType.artwork,       # dramatico-musical work
   "Q24634210":  CardType.artwork,       # podcast show
   "Q105543609": CardType.artwork,       # musical work / composition
   "Q106499608": CardType.artwork,       # literary reading
+  "Q117467246": CardType.artwork,       # animated television series
 
   "Q515":       CardType.location,      # city
   "Q8502":      CardType.location,      # mountain
@@ -137,31 +144,50 @@ WIKIDATA_INSTANCE_TYPE_MAP = {
 
   "Q7278":      CardType.group,         # political party
   "Q476028":    CardType.group,         # association football club
+  "Q732717":    CardType.group,         # law enforcement agency
   "Q215380":    CardType.group,         # musical group
   "Q176799":    CardType.group,         # military unit
   "Q178790":    CardType.group,         # labor union
   "Q2367225":   CardType.group,         # university and college sports club
+  "Q4801149":   CardType.group,         # artillery brigade
   "Q9248092":   CardType.group,         # infantry division
   "Q7210356":   CardType.group,         # political organization
   "Q5419137":   CardType.group,         # veterans' organization
   "Q12973014":  CardType.group,         # sports team
+  "Q11446438":  CardType.group,         # female idol group
   "Q135408445": CardType.group,         # men's national association football team
 
   "Q7187":      CardType.science_thing, # gene
   "Q8054":      CardType.science_thing, # protein
+  "Q65943":     CardType.science_thing, # theorem
+  "Q12140":     CardType.science_thing, # medication
   "Q11276":     CardType.science_thing, # globular cluster
   "Q898273":    CardType.science_thing, # protein domain
   "Q168845":    CardType.science_thing, # star cluster
+  "Q1840368":   CardType.science_thing, # cloud type
   "Q113145171": CardType.science_thing, # type of chemical entity
 
+  "Q1420":      CardType.vehicle,       # car
+  "Q11446":     CardType.vehicle,       # ship
   "Q43193":     CardType.vehicle,       # truck
   "Q25956":     CardType.vehicle,       # space station
+  "Q39804":     CardType.vehicle,       # cruise ship
+  "Q811704":    CardType.vehicle,       # rolling stock class
+  "Q673687":    CardType.vehicle,       # racing automobile
   "Q174736":    CardType.vehicle,       # destroyer
   "Q484000":    CardType.vehicle,       # unmanned aerial vehicle
   "Q559026":    CardType.vehicle,       # ship class
+  "Q830335":    CardType.vehicle,       # protected cruiser
+  "Q928235":    CardType.vehicle,       # sloop-of-war
+  "Q391022":    CardType.vehicle,       # research vessel
+  "Q1185562":   CardType.vehicle,       # light aircraft carrier
+  "Q7233751":   CardType.vehicle,       # post ship
   "Q3231690":   CardType.vehicle,       # automobile model
   "Q1428357":   CardType.vehicle,       # submarine class
   "Q1499623":   CardType.vehicle,       # destroyer escort
+  "Q4818021":   CardType.vehicle,       # attack submarine
+
+  "Q4830453":   CardType.business,      # business
 }
 
 import asyncio
@@ -185,13 +211,15 @@ async def _get_random_summary_async(client: httpx.AsyncClient) -> dict:
         headers=HEADERS,
         follow_redirects=False,
       )
-  except httpx.ReadTimeout:
+  except:
     return {}
 
   if not response.is_success:
-    print("Error in request:")
+    logger.error(
-    print(response.status_code)
+      "Error in request:" +
-    print(response.text)
+      str(response.status_code) +
+      response.text
+    )
     return {}
 
   return response.json()
@@ -212,22 +240,28 @@ async def _get_page_summary_async(client: httpx.AsyncClient, title: str) -> dict
         headers=HEADERS,
         follow_redirects=False,
       )
-  except httpx.ReadTimeout:
+  except:
     return {}
 
   if not response.is_success:
-    print("Error in request:")
+    logger.error(
-    print(response.status_code)
+      "Error in request:" +
-    print(response.text)
+      str(response.status_code) +
+      response.text
+    )
     return {}
 
   return response.json()
 
 async def _infer_card_type_async(client: httpx.AsyncClient, entity_id: str) -> tuple[CardType, str, int]:
+  try:
     response = await client.get(
       "https://www.wikidata.org/wiki/Special:EntityData/" + entity_id + ".json",
       headers=HEADERS
     )
+  except:
+    return CardType.other, "", 0
+
   if not response.is_success:
     return CardType.other, "", 0
 
@@ -253,10 +287,13 @@ async def _infer_card_type_async(client: httpx.AsyncClient, entity_id: str) -> t
 
 async def _get_wikirank_score(client: httpx.AsyncClient, title: str) -> float | None:
   """Returns a quality score from 0-100, or None if unavailable."""
+  try:
     response = await client.get(
-    f"https://api.wikirank.net/api.php?name={quote(title, safe="")}&lang=en",
+      f"https://api.wikirank.net/api.php?name={quote(title, safe='')}&lang=en",
       headers=HEADERS
     )
+  except:
+    return None
   if not response.is_success:
     return None
   data = response.json()
@@ -307,7 +344,7 @@ async def _get_monthly_pageviews(client: httpx.AsyncClient, title: str) -> int |
       return None
     items = response.json().get("items", [])
     return items[0]["views"] if items else None
-  except httpx.ReadError:
+  except Exception:
     return None
 
 def _pageviews_to_defense(views: int | None) -> int:
@@ -340,8 +377,8 @@ async def _get_card_async(client: httpx.AsyncClient, page_title: str|None = None
   rarity = _score_to_rarity(score)
   multiplier = RARITY_MULTIPLIER[rarity]
 
-  attack = int(language_count*1.5*multiplier**2)
+  attack = min(2500,int(((language_count*1.5)**1.2)*multiplier**2))
-  defense = int(_pageviews_to_defense(views)*max(multiplier,(multiplier**2)/2))
+  defense = min(2500,int(_pageviews_to_defense(views)*max(multiplier,(multiplier**2)/2)))
 
   return Card(
     name=summary["title"],
@@ -353,12 +390,14 @@ async def _get_card_async(client: httpx.AsyncClient, page_title: str|None = None
     text=text,
     attack=attack,
     defense=defense,
-    cost=min(12,max(1,int(cbrt(attack+defense)/1.5)))
+    cost=min(12,max(1,int(((attack**2+defense**2)**0.18)/1.5)))
   )
 
 async def _get_cards_async(size: int) -> list[Card]:
+  logger.debug(f"Generating {size} cards")
   async with httpx.AsyncClient(follow_redirects=True) as client:
     cards = await asyncio.gather(*[_get_card_async(client) for _ in range(size)])
+
   return [c for c in cards if c is not None]
 
 async def _get_specific_card_async(title: str) -> Card|None:
@@ -367,33 +406,29 @@ async def _get_specific_card_async(title: str) -> Card|None:
 
 # Sync entrypoints
 def generate_cards(size: int) -> list[Card]:
-  print(f"Generating {size} cards")
+  return asyncio.run(_get_cards_async(size))
-  batches = [10 for _ in range(size//10)] + ([size%10] if size%10 != 0 else [])
-  n_batches = len(batches)
-  cards = []
-  for i in range(n_batches):
-    b = batches[i]
-    print(f"Generating batch of {b} cards (batch {i+1}/{n_batches})")
-    if i != 0:
-      sleep(5)
-    cards += asyncio.run(_get_cards_async(b))
-
-  return cards
 
 def generate_card(title: str) -> Card|None:
   return asyncio.run(_get_specific_card_async(title))
 
+
 # for card in generate_cards(5):
 #   print(card)
 
-# rarities = []
+# cards = []
+# for i in range(20):
+#   print(i)
+#   cards += generate_cards(10)
+#   sleep(3)
+
+# costs = []
 # from collections import Counter
-# for card in generate_cards(1000):
+# for card in cards:
-#   rarities.append(card.card_rarity)
+#   costs.append((card.card_rarity,card.cost))
 #   if card.card_rarity == CardRarity.legendary:
 #     print(card)
 
-# print(Counter(rarities))
+# print(Counter(costs))
 
 # for card in generate_cards(100):
 #   if card.card_type == CardType.other:

backend/database.py

@@ -0,0 +1,17 @@
+from sqlalchemy import create_engine
+from sqlalchemy.orm import DeclarativeBase, sessionmaker
+
+DATABASE_URL = "postgresql://wikitcg:password@localhost/wikitcg"
+
+engine = create_engine(DATABASE_URL)
+SessionLocal = sessionmaker(bind=engine)
+
+class Base(DeclarativeBase):
+  pass
+
+def get_db():
+  db = SessionLocal()
+  try:
+    yield db
+  finally:
+    db.close()

backend/database_functions.py

@@ -0,0 +1,61 @@
+import logging
+import asyncio
+
+from sqlalchemy.orm import Session
+
+from card import _get_cards_async
+from models import Card as CardModel
+from database import SessionLocal
+
+logger = logging.getLogger("app")
+
+POOL_MINIMUM = 500
+POOL_TARGET = 1000
+POOL_BATCH_SIZE = 10
+POOL_SLEEP = 5.0
+
+pool_filling = False
+
+async def fill_card_pool():
+  global pool_filling
+  if pool_filling:
+    logger.info("Pool fill already in progress, skipping")
+    return
+
+  db: Session = SessionLocal()
+  try:
+    unassigned = db.query(CardModel).filter(CardModel.user_id == None).count()
+    logger.info(f"Card pool has {unassigned} unassigned cards")
+    if unassigned >= POOL_MINIMUM:
+      logger.info("Pool sufficiently stocked, skipping fill")
+      return
+
+    pool_filling = True
+    needed = POOL_TARGET - unassigned
+    logger.info(f"Filling pool with {needed} cards")
+
+    fetched = 0
+    while fetched < needed:
+      batch_size = min(POOL_BATCH_SIZE, needed - fetched)
+      cards = await _get_cards_async(batch_size)
+
+      for card in cards:
+        db.add(CardModel(
+          name=card.name,
+          image_link=card.image_link,
+          card_rarity=card.card_rarity.name,
+          card_type=card.card_type.name,
+          text=card.text,
+          attack=card.attack,
+          defense=card.defense,
+          cost=card.cost,
+          user_id=None,
+        ))
+      db.commit()
+      fetched += batch_size
+      logger.info(f"Pool fill progress: {fetched}/{needed}")
+      await asyncio.sleep(POOL_SLEEP)
+
+  finally:
+    pool_filling = False
+    db.close()

backend/log_conf.yaml

@@ -0,0 +1,49 @@
+version: 1
+disable_existing_loggers: False
+formatters:
+  default:
+    # "()": uvicorn.logging.DefaultFormatter
+    format: '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
+  access:
+    # "()": uvicorn.logging.AccessFormatter
+    format: '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
+handlers:
+  default:
+    formatter: default
+    class: logging.StreamHandler
+    stream: ext://sys.stderr
+  access:
+    formatter: access
+    class: logging.StreamHandler
+    stream: ext://sys.stdout
+loggers:
+  uvicorn.error:
+    level: INFO
+    handlers:
+      - default
+    propagate: no
+  uvicorn.access:
+    level: INFO
+    handlers:
+      - access
+    propagate: no
+  httpcore:
+    level: WARNING
+    handlers:
+      - default
+    propagate: no
+  httpx:
+    level: WARNING
+    handlers:
+      - default
+    propagate: no
+  app:
+    level: INFO
+    handlers:
+      - default
+    propagate: no
+root:
+  level: DEBUG
+  handlers:
+    - default
+  propagate: no

backend/main.py

@@ -1,8 +1,46 @@
-from fastapi import FastAPI
+import asyncio
-from fastapi.middleware.cors import CORSMiddleware
+import logging
-from card import _get_cards_async
+import uuid
+from contextlib import asynccontextmanager
 
-app = FastAPI()
+from sqlalchemy.orm import Session
+from fastapi import FastAPI, Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
+from fastapi.middleware.cors import CORSMiddleware
+from pydantic import BaseModel
+
+from database import SessionLocal, get_db
+from database_functions import fill_card_pool
+from models import Card as CardModel
+from models import User as UserModel
+from card import _get_cards_async
+from auth import hash_password, verify_password, create_access_token, decode_access_token
+
+logger = logging.getLogger("app")
+
+# Auth
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl="login")
+
+class RegisterRequest(BaseModel):
+  username: str
+  email: str
+  password: str
+
+def get_current_user(token: str = Depends(oauth2_scheme), db: Session = Depends(get_db)) -> UserModel:
+  user_id = decode_access_token(token)
+  if not user_id:
+    raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid token")
+  user = db.query(UserModel).filter(UserModel.id == uuid.UUID(user_id)).first()
+  if not user:
+    raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="User not found")
+  return user
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+  asyncio.create_task(fill_card_pool())
+  yield
+
+app = FastAPI(lifespan=lifespan)
 
 app.add_middleware(
   CORSMiddleware,
@@ -12,7 +50,7 @@ app.add_middleware(
 )
 
 @app.get("/pack/{size}")
-async def open_pack(size: int = 10):
+async def open_pack(size: int = 10, user: UserModel = Depends(get_current_user)):
   cards = await _get_cards_async(size)
   return [
     {**card._asdict(),
@@ -20,3 +58,27 @@ async def open_pack(size: int = 10):
       "card_rarity": card.card_rarity.name}
     for card in cards
   ]
+
+@app.post("/register")
+def register(req: RegisterRequest, db: Session = Depends(get_db)):
+  if db.query(UserModel).filter(UserModel.username == req.username).first():
+    raise HTTPException(status_code=400, detail="Username already taken")
+  if db.query(UserModel).filter(UserModel.email == req.email).first():
+    raise HTTPException(status_code=400, detail="Email already registered")
+  user = UserModel(
+    id=uuid.uuid4(),
+    username=req.username,
+    email=req.email,
+    password_hash=hash_password(req.password),
+  )
+  db.add(user)
+  db.commit()
+  return {"message": "User created"}
+
+@app.post("/login")
+def login(form: OAuth2PasswordRequestForm = Depends(), db: Session = Depends(get_db)):
+  user = db.query(UserModel).filter(UserModel.username == form.username).first()
+  if not user or not verify_password(form.password, user.password_hash):
+    raise HTTPException(status_code=400, detail="Invalid username or password")
+  token = create_access_token(str(user.id))
+  return {"access_token": token, "token_type": "bearer"}

backend/models.py

@@ -0,0 +1,59 @@
+import uuid
+from datetime import datetime
+from sqlalchemy import String, Integer, ForeignKey, DateTime, Text
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+from sqlalchemy.dialects.postgresql import UUID
+from database import Base
+
+class User(Base):
+    __tablename__ = "users"
+
+    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    username: Mapped[str] = mapped_column(String, unique=True, nullable=False)
+    email: Mapped[str] = mapped_column(String, unique=True, nullable=False)
+    password_hash: Mapped[str] = mapped_column(String, nullable=False)
+    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.now)
+
+    cards: Mapped[list["Card"]] = relationship(back_populates="user")
+    decks: Mapped[list["Deck"]] = relationship(back_populates="user")
+
+
+class Card(Base):
+    __tablename__ = "cards"
+
+    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    user_id: Mapped[uuid.UUID | None] = mapped_column(UUID(as_uuid=True), ForeignKey("users.id"), nullable=True)
+    name: Mapped[str] = mapped_column(String, nullable=False)
+    image_link: Mapped[str] = mapped_column(String, nullable=True)
+    card_rarity: Mapped[str] = mapped_column(String, nullable=False)
+    card_type: Mapped[str] = mapped_column(String, nullable=False)
+    text: Mapped[str] = mapped_column(Text, nullable=True)
+    attack: Mapped[int] = mapped_column(Integer, nullable=False)
+    defense: Mapped[int] = mapped_column(Integer, nullable=False)
+    cost: Mapped[int] = mapped_column(Integer, nullable=False)
+    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.now)
+
+    user: Mapped["User | None"] = relationship(back_populates="cards")
+    deck_cards: Mapped[list["DeckCard"]] = relationship(back_populates="card")
+
+
+class Deck(Base):
+    __tablename__ = "decks"
+
+    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    user_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("users.id"), nullable=False)
+    name: Mapped[str] = mapped_column(String, nullable=False)
+    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.now)
+
+    user: Mapped["User"] = relationship(back_populates="decks")
+    deck_cards: Mapped[list["DeckCard"]] = relationship(back_populates="deck")
+
+
+class DeckCard(Base):
+    __tablename__ = "deck_cards"
+
+    deck_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("decks.id"), primary_key=True)
+    card_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("cards.id"), primary_key=True)
+
+    deck: Mapped["Deck"] = relationship(back_populates="deck_cards")
+    card: Mapped["Card"] = relationship(back_populates="deck_cards")

backend/run

@@ -0,0 +1 @@
+uvicorn main:app --reload --log-config=log_conf.yaml

frontend/package-lock.json

@@ -608,9 +608,6 @@
 				"arm"
 			],
 			"dev": true,
-			"libc": [
-				"glibc"
-			],
 			"license": "MIT",
 			"optional": true,
 			"os": [
@@ -625,9 +622,6 @@
 				"arm"
 			],
 			"dev": true,
-			"libc": [
-				"musl"
-			],
 			"license": "MIT",
 			"optional": true,
 			"os": [
@@ -642,9 +636,6 @@
 				"arm64"
 			],
 			"dev": true,
-			"libc": [
-				"glibc"
-			],
 			"license": "MIT",
 			"optional": true,
 			"os": [
@@ -659,9 +650,6 @@
 				"arm64"
 			],
 			"dev": true,
-			"libc": [
-				"musl"
-			],
 			"license": "MIT",
 			"optional": true,
 			"os": [
@@ -676,9 +664,6 @@
 				"loong64"
 			],
 			"dev": true,
-			"libc": [
-				"glibc"
-			],
 			"license": "MIT",
 			"optional": true,
 			"os": [
@@ -693,9 +678,6 @@
 				"loong64"
 			],
 			"dev": true,
-			"libc": [
-				"musl"
-			],
 			"license": "MIT",
 			"optional": true,
 			"os": [
@@ -710,9 +692,6 @@
 				"ppc64"
 			],
 			"dev": true,
-			"libc": [
-				"glibc"
-			],
 			"license": "MIT",
 			"optional": true,
 			"os": [
@@ -727,9 +706,6 @@
 				"ppc64"
 			],
 			"dev": true,
-			"libc": [
-				"musl"
-			],
 			"license": "MIT",
 			"optional": true,
 			"os": [
@@ -744,9 +720,6 @@
 				"riscv64"
 			],
 			"dev": true,
-			"libc": [
-				"glibc"
-			],
 			"license": "MIT",
 			"optional": true,
 			"os": [
@@ -761,9 +734,6 @@
 				"riscv64"
 			],
 			"dev": true,
-			"libc": [
-				"musl"
-			],
 			"license": "MIT",
 			"optional": true,
 			"os": [
@@ -778,9 +748,6 @@
 				"s390x"
 			],
 			"dev": true,
-			"libc": [
-				"glibc"
-			],
 			"license": "MIT",
 			"optional": true,
 			"os": [
@@ -795,9 +762,6 @@
 				"x64"
 			],
 			"dev": true,
-			"libc": [
-				"glibc"
-			],
 			"license": "MIT",
 			"optional": true,
 			"os": [
@@ -812,9 +776,6 @@
 				"x64"
 			],
 			"dev": true,
-			"libc": [
-				"musl"
-			],
 			"license": "MIT",
 			"optional": true,
 			"os": [

frontend/src/app.css

@@ -0,0 +1,9 @@
+*, *::before, *::after {
+  box-sizing: border-box;
+  margin: 0;
+  padding: 0;
+}
+
+body {
+  background: #0d0a04;
+}

frontend/src/lib/Card.svelte

@@ -19,6 +19,7 @@
     group:          { bg: "#e8e4d0", header: "#748c12" },
     science_thing:  { bg: "#c7c5c1", header: "#060c17" },
     vehicle:        { bg: "#c7c1c4", header: "#801953" },
+    business:       { bg: "#b7c1c4", header: "#3c5251" },
     other:          { bg: "#dddad4", header: "#6a6860" },
   };
 
@@ -210,7 +211,7 @@
     position: relative;
     width: 100%;
     aspect-ratio: 4/3;
-    background: #222;
+    background: #e8d8b8;
     overflow: hidden;
     border-bottom: 2px solid #000;
   }

frontend/src/routes/+layout.svelte

@@ -1,4 +1,5 @@
 <script lang="ts">
+	import '../app.css';
 	import favicon from '$lib/assets/favicon.svg';
 
 	let { children } = $props();

frontend/src/routes/+page.svelte

@@ -1,17 +1,25 @@
 <script>
-  import Card from "$lib/Card.svelte";
+  import { goto } from '$app/navigation';
+  import { onMount } from 'svelte';
+  import Card from '$lib/Card.svelte';
 
   let cards = $state([]);
   let loading = $state(false);
 
+  onMount(() => {
+    if (!localStorage.getItem('token')) goto('/auth');
+  });
+
   async function openPack() {
     loading = true;
     try {
-    const res = await fetch("http://localhost:8000/pack/14");
+      const res = await fetch('http://localhost:8000/pack/10', {
-    if (!res.ok) throw new Error(`HTTP ${res.status}`);
+        headers: { Authorization: `Bearer ${localStorage.getItem('token')}` }
+      });
+      if (res.status === 401) { goto('/auth'); return; }
       cards = await res.json();
     } catch (e) {
-    console.error("Failed to open pack:", e);
+      console.error(e);
     } finally {
       loading = false;
     }
@@ -33,7 +41,7 @@
 <style>
   main {
     min-height: 100vh;
-    background: #0d0a04;
+    background: #887859;
     padding: 2rem;
   }
 

frontend/src/routes/auth/+page.svelte

@@ -0,0 +1,201 @@
+<script>
+  import { goto } from '$app/navigation';
+
+  let mode = $state('login');
+  let username = $state('');
+  let email = $state('');
+  let password = $state('');
+  let error = $state('');
+  let loading = $state(false);
+
+  async function submit() {
+    error = '';
+    if (!username.trim()) {
+      error = 'Username is required';
+      return;
+    }
+    loading = true;
+    try {
+      if (mode === 'register') {
+        const res = await fetch('http://localhost:8000/register', {
+          method: 'POST',
+          headers: { 'Content-Type': 'application/json' },
+          body: JSON.stringify({ username, email, password }),
+        });
+        const data = await res.json();
+        if (!res.ok) throw new Error(data.detail);
+        mode = 'login';
+        error = '';
+        return;
+      }
+
+      const form = new FormData();
+      form.append('username', username);
+      form.append('password', password);
+      const res = await fetch('http://localhost:8000/login', {
+        method: 'POST',
+        body: form,
+      });
+      const data = await res.json();
+      if (!res.ok) throw new Error(data.detail);
+      localStorage.setItem('token', data.access_token);
+      goto('/');
+    } catch (e) {
+      error = e.message;
+    } finally {
+      loading = false;
+    }
+  }
+</script>
+
+<main>
+  <div class="card">
+    <h1>{mode === 'login' ? 'Sign In' : 'Register'}</h1>
+
+    <div class="fields">
+      <input
+        type="text"
+        placeholder="Username"
+        bind:value={username}
+      />
+      {#if mode === 'register'}
+        <input
+          type="email"
+          placeholder="Email"
+          bind:value={email}
+        />
+      {/if}
+      <input
+        type="password"
+        placeholder="Password"
+        bind:value={password}
+      />
+    </div>
+
+    {#if error}
+      <p class="error">{error}</p>
+    {/if}
+
+    <button onclick={submit} disabled={loading}>
+      {loading ? 'Please wait...' : mode === 'login' ? 'Sign In' : 'Create Account'}
+    </button>
+
+    <p class="toggle">
+      {mode === 'login' ? "Don't have an account?" : 'Already have an account?'}
+      <button class="link" onclick={() => { mode = mode === 'login' ? 'register' : 'login'; error = ''; }}>
+        {mode === 'login' ? 'Register' : 'Sign in'}
+      </button>
+    </p>
+  </div>
+</main>
+
+<style>
+  @import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;700&family=Crimson+Text:ital,wght@0,400;0,600;1,400&display=swap');
+
+  main {
+    min-height: 100vh;
+    background: #0d0a04;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+  }
+
+  .card {
+    width: 340px;
+    background: #2e1c05;
+    border: 2px solid #6b4c1e;
+    border-radius: 12px;
+    padding: 2rem;
+    display: flex;
+    flex-direction: column;
+    gap: 1.2rem;
+  }
+
+  h1 {
+    font-family: 'Cinzel', serif;
+    font-size: 20px;
+    color: #f0d080;
+    text-align: center;
+    margin: 0;
+  }
+
+  .fields {
+    display: flex;
+    flex-direction: column;
+    gap: 0.75rem;
+  }
+
+  input {
+    width: 100%;
+    padding: 9px 12px;
+    background: #1a1008;
+    border: 1.5px solid #8b6420;
+    border-radius: 6px;
+    color: #f0d080;
+    font-family: 'Crimson Text', serif;
+    font-size: 15px;
+    box-sizing: border-box;
+    outline: none;
+  }
+
+  input::placeholder {
+    color: rgba(240, 180, 80, 0.4);
+  }
+
+  input:focus {
+    border-color: #f0d080;
+  }
+
+  button {
+    width: 100%;
+    padding: 10px;
+    background: #6b4c1e;
+    color: #f0d080;
+    border: 1.5px solid #8b6420;
+    border-radius: 6px;
+    font-family: 'Cinzel', serif;
+    font-size: 13px;
+    cursor: pointer;
+    transition: background 0.15s;
+  }
+
+  button:hover:not(:disabled) {
+    background: #8b6420;
+  }
+
+  button:disabled {
+    opacity: 0.5;
+    cursor: default;
+  }
+
+  .error {
+    color: #c84040;
+    font-family: 'Crimson Text', serif;
+    font-size: 13px;
+    text-align: center;
+    margin: 0;
+  }
+
+  .toggle {
+    font-family: 'Crimson Text', serif;
+    font-size: 13px;
+    color: rgba(240, 180, 80, 0.7);
+    text-align: center;
+    margin: 0;
+  }
+
+  .link {
+    all: unset;
+    color: #f0d080;
+    cursor: pointer;
+    text-decoration: underline;
+    width: auto;
+    padding: 0;
+    font-size: 13px;
+    font-family: 'Crimson Text', serif;
+  }
+
+  .link:hover {
+    color: #f0d080;
+  }
+</style>