init commit

.env

@@ -0,0 +1,17 @@
+# app
+PORT=8001
+
+# database
+DB_HOST=127.0.0.1
+DB_PORT=3306
+DB_USER=root
+DB_PASSWORD=password
+DB_DATABASE=mini-project
+POOL_SIZE=8
+MAX_OVERFLOW=32
+POOL_RECYCLE=64
+
+# jwt
+JWT_EXPIRATION_DELTA=24
+JWT_ALGORITHM=HS256
+JWT_SECRET=key123456

alembic.ini

@@ -0,0 +1,147 @@
+# 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
+
+# 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 = mysql+pymysql://root:password@localhost:3306/mini-project
+
+
+[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

alembic/README

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+Generic single-database configuration.

alembic/env.py

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+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+# 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
+
+from src.models.base import BaseModel
+from src.models.user import User  
+from src.models.question import Question
+from src.models.comment import Comment
+from src.models.rating import Rating
+from src.models.choice import Choice
+
+target_metadata = BaseModel.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()

alembic/script.py.mako

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+"""${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"}

alembic/versions/7531e2b3a772_init_database.py

@@ -0,0 +1,100 @@
+"""init database
+
+Revision ID: 7531e2b3a772
+Revises: 
+Create Date: 2025-10-14 00:42:13.032368
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '7531e2b3a772'
+down_revision: Union[str, Sequence[str], None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('users',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('username', sa.String(length=50), nullable=False),
+    sa.Column('email', sa.String(length=100), nullable=False),
+    sa.Column('password', sa.String(length=100), nullable=False),
+    sa.Column('avatar_url', sa.Text(), nullable=True),
+    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=True),
+    sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_users_email'), 'users', ['email'], unique=True)
+    op.create_index(op.f('ix_users_id'), 'users', ['id'], unique=False)
+    op.create_index(op.f('ix_users_username'), 'users', ['username'], unique=True)
+    op.create_table('questions',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('user_id', sa.Integer(), nullable=False),
+    sa.Column('topic', sa.String(length=100), nullable=False),
+    sa.Column('context', sa.Text(), nullable=False),
+    sa.Column('question_text', sa.Text(), nullable=False),
+    sa.Column('correct_choice', sa.String(length=255), nullable=False),
+    sa.Column('tags', sa.Text(), nullable=True),
+    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=True),
+    sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=True),
+    sa.ForeignKeyConstraint(['user_id'], ['users.id'], ondelete='CASCADE'),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_questions_id'), 'questions', ['id'], unique=False)
+    op.create_table('choices',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('question_id', sa.Integer(), nullable=False),
+    sa.Column('choice_text', sa.String(length=255), nullable=False),
+    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=True),
+    sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=True),
+    sa.ForeignKeyConstraint(['question_id'], ['questions.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_choices_id'), 'choices', ['id'], unique=False)
+    op.create_table('comments',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('question_id', sa.Integer(), nullable=False),
+    sa.Column('user_id', sa.Integer(), nullable=False),
+    sa.Column('comment_text', sa.Text(), nullable=False),
+    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=True),
+    sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=True),
+    sa.ForeignKeyConstraint(['question_id'], ['questions.id'], ),
+    sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_comments_id'), 'comments', ['id'], unique=False)
+    op.create_table('ratings',
+    sa.Column('user_id', sa.Integer(), nullable=False),
+    sa.Column('question_id', sa.Integer(), nullable=False),
+    sa.Column('rating_value', sa.Integer(), nullable=False),
+    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=True),
+    sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=True),
+    sa.ForeignKeyConstraint(['question_id'], ['questions.id'], ondelete='CASCADE'),
+    sa.ForeignKeyConstraint(['user_id'], ['users.id'], ondelete='CASCADE'),
+    sa.PrimaryKeyConstraint('user_id', 'question_id')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('ratings')
+    op.drop_index(op.f('ix_comments_id'), table_name='comments')
+    op.drop_table('comments')
+    op.drop_index(op.f('ix_choices_id'), table_name='choices')
+    op.drop_table('choices')
+    op.drop_index(op.f('ix_questions_id'), table_name='questions')
+    op.drop_table('questions')
+    op.drop_index(op.f('ix_users_username'), table_name='users')
+    op.drop_index(op.f('ix_users_id'), table_name='users')
+    op.drop_index(op.f('ix_users_email'), table_name='users')
+    op.drop_table('users')
+    # ### end Alembic commands ###

env.py

@@ -0,0 +1,25 @@
+import os
+from dotenv import load_dotenv
+
+load_dotenv()
+
+config = {
+    "app": {
+        'port': os.getenv("PORT"),
+    },
+    "db": {
+        "host": os.getenv("DB_HOST"),
+        "port": os.getenv("DB_PORT"),
+        "user": os.getenv("DB_USER"),
+        "password": os.getenv("DB_PASSWORD"),
+        "database": os.getenv("DB_DATABASE"),
+        "pool_size": int(os.getenv("POOL_SIZE")) | 8,
+        "max_overflow": int(os.getenv("MAX_OVERFLOW")) | 16,
+        "pool_recycle": int(os.getenv("POOL_RECYCLE")),
+    },
+    "jwt": {
+        "expired_in": int(os.getenv("JWT_EXPIRATION_DELTA")) | 24, # hour
+        "algorithm": os.getenv("JWT_ALGORITHM"),
+        "secret_key": os.getenv("JWT_SECRET"),
+    }
+}

main.py

@@ -0,0 +1,23 @@
+from fastapi import FastAPI, Request, HTTPException
+
+from src.routers.public.public import router
+from src.utils.response import handler_error
+    
+app = FastAPI()
+@app.exception_handler(Exception)
+async def exception_handler(request: Request, exc: Exception):
+    return handler_error(exc)
+
+@app.exception_handler(HTTPException)
+async def http_exception_handler(request: Request, exc: HTTPException):
+    return handler_error(exc)
+
+@app.get('/check-health')
+def check_health():
+    return {"status": "ok"}
+
+app.include_router(router)
+
+if __name__ == "__main__":
+    import uvicorn
+    uvicorn.run("main:app", host="0.0.0.0", port=8000, reload=True)

requirements.txt

@@ -0,0 +1,135 @@
+aiomysql==0.2.0
+annotated-types==0.7.0
+anyio==4.11.0
+bcrypt==5.0.0
+beautifulsoup4==4.14.2
+blis==1.3.0
+cachetools==6.2.0
+catalogue==2.0.10
+certifi==2025.10.5
+cffi==2.0.0
+charset-normalizer==3.4.3
+click==8.3.0
+cloudpathlib==0.22.0
+colorama==0.4.6
+coloredlogs==15.0.1
+confection==0.1.5
+cryptography==46.0.2
+curated-tokenizers==0.0.9
+curated-transformers==0.1.1
+cymem==2.0.11
+deep-translator==1.11.4
+dnspython==2.8.0
+email-validator==2.3.0
+exceptiongroup==1.3.0
+fastapi==0.118.0
+fastapi-cli==0.0.13
+fastapi-cloud-cli==0.3.0
+fastt5==0.0.5
+filelock==3.19.1
+flatbuffers==25.9.23
+fsspec==2025.9.0
+gdown==5.2.0
+google-api-core==2.25.2
+google-auth==2.41.1
+google-cloud-core==2.4.3
+google-cloud-storage==3.4.0
+google-crc32c==1.7.1
+google-resumable-media==2.7.2
+googleapis-common-protos==1.70.0
+greenlet==3.2.4
+h11==0.16.0
+httpcore==1.0.9
+httptools==0.6.4
+httpx==0.28.1
+huggingface-hub==0.35.3
+humanfriendly==10.0
+idna==3.10
+iniconfig==2.1.0
+Jinja2==3.1.6
+joblib==1.5.2
+jwt==1.4.0
+keybert==0.9.0
+keyphrase-vectorizers==0.0.13
+langcodes==3.5.0
+language_data==1.3.0
+marisa-trie==1.3.1
+markdown-it-py==4.0.0
+MarkupSafe==3.0.3
+mdurl==0.1.2
+ml_dtypes==0.5.3
+mpmath==1.3.0
+murmurhash==1.0.13
+networkx==3.4.2
+nltk==3.9.2
+numpy==2.2.6
+onnx==1.19.0
+onnxruntime==1.23.0
+packaging==25.0
+pillow==11.3.0
+pluggy==1.6.0
+preshed==3.0.10
+progress==1.6.1
+proto-plus==1.26.1
+protobuf==6.32.1
+psutil==7.1.0
+pyasn1==0.6.1
+pyasn1_modules==0.4.2
+pycparser==2.23
+pydantic==2.11.10
+pydantic_core==2.33.2
+Pygments==2.19.2
+PyMySQL==1.1.2
+PyPDF2==3.0.1
+pyreadline3==3.5.4
+PySocks==1.7.1
+pytesseract==0.3.13
+pytest==8.4.2
+python-dotenv==1.1.1
+python-multipart==0.0.20
+PyYAML==6.0.3
+regex==2025.9.18
+requests==2.32.5
+rich==14.1.0
+rich-toolkit==0.15.1
+rignore==0.7.0
+rsa==4.9.1
+safetensors==0.6.2
+scikit-learn==1.7.2
+scipy==1.15.3
+sense2vec==2.0.2
+sentence-transformers==5.1.1
+sentencepiece==0.2.1
+sentry-sdk==2.39.0
+shellingham==1.5.4
+sklearn==0.0
+smart_open==7.3.1
+sniffio==1.3.1
+soupsieve==2.8
+spacy==3.8.7
+spacy-alignments==0.9.2
+spacy-curated-transformers==0.3.1
+spacy-legacy==3.0.12
+spacy-loggers==1.0.5
+spacy-transformers==1.3.9
+SQLAlchemy==2.0.43
+srsly==2.5.1
+starlette==0.48.0
+sympy==1.14.0
+thinc==8.3.6
+threadpoolctl==3.6.0
+tokenizers==0.21.4
+tomli==2.2.1
+torch==2.8.0
+tqdm==4.67.1
+transformers==4.49.0
+typer==0.19.2
+typing-inspection==0.4.2
+typing_extensions==4.15.0
+urllib3==2.5.0
+uvicorn==0.37.0
+wasabi==1.1.3
+watchfiles==1.1.0
+weasel==0.4.1
+websockets==15.0.1
+wrapt==1.17.3

src/dtos/user.py

@@ -0,0 +1,11 @@
+from pydantic import BaseModel
+
+
+class UserDto(BaseModel):
+    id: int
+    username: str
+    email: str
+
+    model_config = {
+        "from_attributes": True,
+    }

src/interfaces/auth.py

@@ -0,0 +1,15 @@
+from pydantic import BaseModel, Field
+
+class ILogin(BaseModel):
+    username: str
+    password: str
+
+class IPagination(BaseModel):
+    paging: int = Field(1, ge=1)
+    limit: int = Field(10, ge=1)
+    sort_by: str = "id",
+    sort_order: str = 'asc',
+
+    @property
+    def offset(self):
+        return (self.page - 1) * self.limit

src/interfaces/question.py

@@ -0,0 +1,12 @@
+from pydantic import BaseModel
+from typing import Optional
+
+class ModelInput(BaseModel):
+    """General request model structure for flutter incoming req."""
+    user_id: Optional[str] = None
+    context: str
+    name: str
+
+class ICreateQuestion(BaseModel):
+    context: str
+    name: str

src/interfaces/user.py

@@ -0,0 +1,19 @@
+from datetime import datetime
+
+from pydantic import BaseModel, EmailStr
+from typing import Optional
+
+class ICreateUser(BaseModel):
+    username: str
+    email: EmailStr
+    password: str
+
+class IUpdateUser(BaseModel):
+    username: str
+    email: EmailStr
+    password: Optional[str]
+
+class IFilterUser(BaseModel):
+    username: Optional[str] = None
+    email: Optional[EmailStr] = None
+    username_or_email: Optional[str] = None

src/loaders/database.py

@@ -0,0 +1,25 @@
+from env import config
+
+from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession, async_sessionmaker
+
+database_url = f"mysql+aiomysql://{config['db']['user']}:{config['db']['password']}@{config['db']['host']}:{config['db']['port']}/{config['db']['database']}"
+engine = create_async_engine(
+    database_url,
+    pool_size=config['db']['pool_size'],
+    max_overflow=0,
+    pool_recycle=3600,
+    echo=False,
+    future=True,
+)
+SessionLocal = async_sessionmaker(
+    engine, 
+    expire_on_commit=False, 
+    class_=AsyncSession
+)
+
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()

src/middlewares/authenticate.py

@@ -0,0 +1,25 @@
+from fastapi import Request, HTTPException, Depends
+from sqlalchemy.ext.asyncio import AsyncSession
+
+import jwt
+
+from env import config
+from src.loaders.database import get_db
+from src.services.user import get_user_service
+
+async def authenticate(request: Request, db: AsyncSession = Depends(get_db), user_service = Depends(get_user_service)):
+    auth_header = request.headers.get("Authorization")
+    if not auth_header or not auth_header.startswith("Bearer"):
+        raise HTTPException(status_code=401, detail="token_invalid")
+
+    token = auth_header.split("Bearer")[1].strip()
+    payload = jwt.decode(token, config["jwt"]["secret_key"], algorithm=config["jwt"]["algorithm"])
+    user_id = payload.get("id")
+    if user_id is None:
+        raise HTTPException(status_code=401, detail="token_invalid")
+
+    user = await user_service.find_by_pk(db, user_id)
+    if user is None:
+        raise HTTPException(status_code=401, detail="token_invalid")
+    request.state.user = user
+

src/models/__init__.py

@@ -0,0 +1,5 @@
+from .choice import Choice
+from .comment import Comment
+from .question import Question
+from .rating import Rating
+from .user import User

src/models/base.py

@@ -0,0 +1,3 @@
+from sqlalchemy.ext.declarative import declarative_base
+
+BaseModel = declarative_base()

src/models/choice.py

@@ -0,0 +1,15 @@
+# models.py
+from sqlalchemy import Column, Integer, String, ForeignKey, DateTime, func
+from sqlalchemy.orm import relationship
+from src.models.base import BaseModel
+
+class Choice(BaseModel):
+    __tablename__ = "choices"
+    
+    id = Column(Integer, primary_key=True, index=True)
+    question_id = Column(Integer, ForeignKey("questions.id"), nullable=False)
+    choice_text = Column(String(255), nullable=False)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())  
+    updated_at = Column(DateTime(timezone=True), onupdate=func.now(), server_default=func.now())  
+
+    question = relationship("Question", back_populates="choices")

src/models/comment.py

@@ -0,0 +1,16 @@
+# models.py
+from sqlalchemy import Column, Integer, ForeignKey, Text, DateTime, func
+from sqlalchemy.orm import relationship
+from src.models.base import BaseModel
+
+class Comment(BaseModel):
+    __tablename__ = "comments"
+    
+    id = Column(Integer, primary_key=True, index=True)
+    question_id = Column(Integer, ForeignKey("questions.id"), nullable=False)
+    user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
+    comment_text = Column(Text, nullable=False)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())  
+    updated_at = Column(DateTime(timezone=True), onupdate=func.now(), server_default=func.now())  
+
+    question = relationship("Question", back_populates="comments")

src/models/question.py

@@ -0,0 +1,24 @@
+# models.py
+from sqlalchemy import Column, Integer, String, Boolean, ForeignKey, Text, Date, DateTime, func
+from sqlalchemy.orm import relationship
+from src.models.base import BaseModel
+from datetime import datetime
+
+class Question(BaseModel):
+    __tablename__ = "questions"
+    
+    id = Column(Integer, primary_key=True, index=True)
+    user_id = Column(Integer, ForeignKey("users.id", ondelete="CASCADE"), nullable=False)
+    topic = Column(String(100), nullable=False)
+    context = Column(Text, nullable=False) 
+    question_text = Column(Text, nullable=False)
+    correct_choice = Column(String(255), nullable=False)
+    tags = Column(Text, nullable=True)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())  
+    updated_at = Column(DateTime(timezone=True), onupdate=func.now(), server_default=func.now())  
+
+    
+    user = relationship("User", back_populates="questions")
+    choices = relationship("Choice", back_populates="question", cascade="all, delete", passive_deletes=True)
+    comments = relationship("Comment", back_populates="question", cascade="all, delete", passive_deletes=True)
+    ratings = relationship("Rating", back_populates="question", cascade="all, delete", passive_deletes=True)

src/models/rating.py

@@ -0,0 +1,15 @@
+# models.py
+from sqlalchemy import Column, Integer, ForeignKey, DateTime, func
+from sqlalchemy.orm import relationship
+from src.models.base import BaseModel
+
+class Rating(BaseModel):
+    __tablename__ = "ratings"
+    
+    user_id = Column(Integer, ForeignKey("users.id", ondelete="CASCADE"), primary_key=True)
+    question_id = Column(Integer, ForeignKey("questions.id", ondelete="CASCADE"), primary_key=True)
+    rating_value = Column(Integer, nullable=False)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())  
+    updated_at = Column(DateTime(timezone=True), onupdate=func.now(), server_default=func.now())  
+
+    question = relationship("Question", back_populates="ratings")

src/models/user.py

@@ -0,0 +1,22 @@
+# models.py
+from sqlalchemy import Column, Integer, String, Text, DateTime, func
+from sqlalchemy.orm import relationship
+from src.models.base import BaseModel
+
+class User(BaseModel):
+    __tablename__ = "users"
+    
+    id = Column(Integer, primary_key=True, index=True)
+    username = Column(String(50), unique=True, nullable=False, index=True)
+    email = Column(String(100), unique=True, nullable=False, index=True)
+    password = Column(String(100), nullable=False)
+    avatar_url = Column(Text, nullable=True)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())  
+    updated_at = Column(DateTime(timezone=True), onupdate=func.now(), server_default=func.now())  
+    
+    questions = relationship(
+        "Question",
+        back_populates="user",
+        cascade="all, delete",
+        passive_deletes=True
+    )

src/repositories/auth.py

@@ -0,0 +1,12 @@
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+
+from src.interfaces.user import  *
+from src.models.user import User
+
+class AuthRepository():
+    async def find_by_username(self, db: AsyncSession, username: str) -> Optional[User]:
+        query = select(User).where(User.username == username)
+        result = await db.execute(query)
+        return await result.scalar_one_or_none()

src/repositories/base.py

@@ -0,0 +1,32 @@
+from abc import ABC, abstractmethod
+
+
+class ICrudRepository(ABC):
+    @abstractmethod
+    def store(self, data):
+        pass
+
+    @abstractmethod
+    def update(self, entity, data):
+        pass
+
+    @abstractmethod
+    def delete(self, entity):
+        pass
+
+    @abstractmethod
+    def find_by_pk(self, entity_id):
+        pass
+
+    @abstractmethod
+    def get_one(self, filter_data):
+        pass
+
+    @abstractmethod
+    def get_many(self, paging, filter_data):
+        pass
+
+    @abstractmethod
+    def build_query(filter_data):
+        pass
+

src/repositories/user.py

@@ -0,0 +1,73 @@
+from src.interfaces.auth import IPagination
+from src.models.user import User
+from src.repositories.base import ICrudRepository
+from src.interfaces.user import ICreateUser, IFilterUser, IUpdateUser
+
+from sqlalchemy import select, or_
+from sqlalchemy.sql import Select
+from sqlalchemy.ext.asyncio import AsyncSession
+from typing import Optional
+
+
+
+class UserRepository(ICrudRepository):
+    async def store(self, db: AsyncSession, data: ICreateUser) -> User:
+        new_user = User(**data.model_dump())
+        db.add(new_user)
+        await db.commit()
+        await db.refresh(new_user)
+
+        return new_user
+
+    async def update(self, db: AsyncSession, user: User, data: IUpdateUser) -> User :
+        update_data = data.model_dump(exclude_unset=True)
+        for key, value in update_data.items():
+            if hasattr(user, key):
+                setattr(user, key, value)
+        
+        await db.commit()
+        await db.refresh(user)
+        return user
+
+    async def delete(self, db: AsyncSession, user: User) :
+        await db.delete(user)
+        await db.commit()
+        return User(**user.model_dump())
+
+    async def find_by_pk(self, db: AsyncSession, user_id: int) -> Optional[User]:
+        return await db.get(User, user_id)
+
+    async def get_one(self, db: AsyncSession, filter_data: IFilterUser):
+        query = self.build_query(filter_data)
+        result = await db.execute(query)
+        return result.scalar_one_or_none()
+
+    async def get_many(self, db: AsyncSession, paging: IPagination, filter_data: IFilterUser):
+        query = self.build_query(filter_data)
+        query = query.limit(paging.limit).offset(paging.offset)
+        sort_by = getattr(User, paging.sort_by, None)
+        if sort_by is not None:
+            if paging.sort_order and paging.sort_order.lower() == 'desc':
+                query = query.order_by(sort_by.desc())
+            else:
+                query = query.order_by(sort_by.asc())
+        result = await db.execute(query)
+        return result.scalar().all()
+
+    @staticmethod
+    def build_query(filters: IFilterUser) -> Select:
+        query = select(User)
+        conditions = []
+        if filters.username_or_email:
+            conditions.append(
+                or_(
+                    filters.username_or_email == User.email,
+                    filters.username_or_email == User.username)
+            )
+        else:
+            if filters.username:
+                conditions.append(filters.username == User.username)
+            if filters.email:
+                conditions.append(filters.email == User.email)
+
+        return query.where(*conditions)