Initial Commit

.gitignore

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+# ---> Python
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# UV
+#   Similar to Pipfile.lock, it is generally recommended to include uv.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#uv.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/latest/usage/project/#working-with-version-control
+.pdm.toml
+.pdm-python
+.pdm-build/
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
+
+# Ruff stuff:
+.ruff_cache/
+
+# PyPI configuration file
+.pypirc

alembic.ini

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+# 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+asyncpg://postgres:HEXDEVFUCKINGSUCKS!@localhost:5432/postgres
+
+
+[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 with an async dbapi.

alembic/env.py

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+import asyncio
+from logging.config import fileConfig
+
+from sqlalchemy import pool
+from sqlalchemy.engine import Connection
+from sqlalchemy.ext.asyncio import async_engine_from_config
+
+from alembic import context
+
+from db.base import Base
+from db.models import *  # noqa: F403
+
+# 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 do_run_migrations(connection: Connection) -> None:
+    context.configure(connection=connection, target_metadata=target_metadata)
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+async def run_async_migrations() -> None:
+    """In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+
+    connectable = async_engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    async with connectable.connect() as connection:
+        await connection.run_sync(do_run_migrations)
+
+    await connectable.dispose()
+
+
+def run_migrations_online() -> None:
+    """Run migrations in 'online' mode."""
+
+    asyncio.run(run_async_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/ad794cb94d9c_initial_migration.py

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+"""Initial Migration
+
+Revision ID: ad794cb94d9c
+Revises:
+Create Date: 2026-01-30 21:38:15.534474
+
+"""
+
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision: str = "ad794cb94d9c"
+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(
+        "categories",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("name", sa.Text(), nullable=True),
+        sa.Column("parent_id", sa.Integer(), nullable=True),
+        sa.ForeignKeyConstraint(
+            ["parent_id"],
+            ["categories.id"],
+        ),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.create_table(
+        "orders",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("customer", sa.BigInteger(), nullable=True),
+        sa.Column(
+            "status",
+            postgresql.ENUM(
+                "CREATED",
+                "PAID",
+                "IN_PROGRESS",
+                "CANCELLED",
+                "DRAFT",
+                name="order_status",
+            ),
+            nullable=False,
+        ),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.create_table(
+        "products",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("category_id", sa.Integer(), nullable=True),
+        sa.Column("name", sa.Text(), nullable=True),
+        sa.Column("description", sa.Text(), nullable=True),
+        sa.Column("search_vector", postgresql.TSVECTOR(), nullable=False),
+        sa.ForeignKeyConstraint(
+            ["category_id"],
+            ["categories.id"],
+        ),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.create_index(
+        "idx_products_search",
+        "products",
+        ["search_vector"],
+        unique=False,
+        postgresql_using="gin",
+    )
+    op.create_table(
+        "order_items",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("order_id", sa.Integer(), nullable=False),
+        sa.Column("product_id", sa.Integer(), nullable=False),
+        sa.Column("quantity", sa.Integer(), nullable=False),
+        sa.ForeignKeyConstraint(
+            ["order_id"],
+            ["orders.id"],
+        ),
+        sa.ForeignKeyConstraint(
+            ["product_id"],
+            ["products.id"],
+        ),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table("order_items")
+    op.drop_index("idx_products_search", table_name="products", postgresql_using="gin")
+    op.drop_table("products")
+    op.drop_table("orders")
+    op.drop_table("categories")
+    # ### end Alembic commands ###

alembic/versions/af58496e0468_product_search_vector_update_trigger_.py

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+"""Product search vector update trigger addition
+
+Revision ID: af58496e0468
+Revises: ad794cb94d9c
+Create Date: 2026-01-30 21:39:39.839562
+
+"""
+
+from typing import Sequence, Union
+
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision: str = "af58496e0468"
+down_revision: Union[str, Sequence[str], None] = "ad794cb94d9c"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    op.execute("""
+        CREATE TRIGGER products_search_vector_update
+        BEFORE INSERT OR UPDATE
+        ON products
+        FOR EACH ROW
+        EXECUTE FUNCTION
+        tsvector_update_trigger(
+            search_vector,
+            'pg_catalog.simple',
+            name,
+            description
+        );
+    """)
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    op.execute("DROP TRIGGER IF EXISTS products_search_vector_update ON products;")

config.py

@@ -0,0 +1,12 @@
+import os
+import logging
+from dotenv import load_dotenv
+
+load_dotenv(override=True)
+logger = logging.getLogger(__name__)
+
+BOT_TOKEN = os.getenv("BOT_TOKEN", "")
+
+POSTGRES_URL = os.getenv(
+    "POSTGRES_URL", "postgresql+asyncpg://postgres:postgres@localhost:5432/postgres"
+)

db/base.py

@@ -0,0 +1,12 @@
+from sqlalchemy.ext.asyncio import create_async_engine, async_sessionmaker
+from sqlalchemy.orm import DeclarativeBase
+
+from config import POSTGRES_URL
+
+
+class Base(DeclarativeBase):
+    pass
+
+
+engine = create_async_engine(POSTGRES_URL, echo=True)
+async_session = async_sessionmaker(engine, expire_on_commit=False)

db/models/__init__.py

@@ -0,0 +1,4 @@
+from .orders import Order, OrderItem, OrderStatus
+from .products import Product, Category
+
+__all__ = ["Order", "OrderItem", "OrderStatus", "Product", "Category"]

db/models/orders.py

@@ -0,0 +1,35 @@
+import enum
+from typing import List, Optional
+from sqlalchemy import ForeignKey, BigInteger
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+from sqlalchemy.dialects.postgresql import ENUM
+from db.base import Base
+
+
+class OrderStatus(enum.Enum):
+    CREATED = "CREATED"
+    PAID = "PAID"
+    IN_PROGRESS = "IN_PROGRESS"
+    CANCELLED = "CANCELLED"
+    DRAFT = "DRAFT"
+
+
+class Order(Base):
+    __tablename__ = "orders"
+
+    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
+    customer: Mapped[Optional[int]] = mapped_column(BigInteger)
+    status: Mapped[OrderStatus] = mapped_column(ENUM(OrderStatus, name="order_status"))
+
+    items: Mapped[List["OrderItem"]] = relationship("OrderItem", back_populates="order")
+
+
+class OrderItem(Base):
+    __tablename__ = "order_items"
+
+    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
+    order_id: Mapped[int] = mapped_column(ForeignKey("orders.id"))
+    product_id: Mapped[int] = mapped_column(ForeignKey("products.id"))
+    quantity: Mapped[int] = mapped_column(default=1)
+
+    order: Mapped["Order"] = relationship("Order", back_populates="items")

db/models/products.py

@@ -0,0 +1,30 @@
+from typing import Optional
+from sqlalchemy import ForeignKey, Text, Index
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+from sqlalchemy.dialects.postgresql import TSVECTOR
+from db.base import Base
+
+
+class Category(Base):
+    __tablename__ = "categories"
+
+    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
+    name: Mapped[Optional[str]] = mapped_column(Text)
+    parent_id: Mapped[Optional[int]] = mapped_column(ForeignKey("categories.id"))
+
+    parent: Mapped["Category"] = relationship("Category", remote_side=[id])
+
+
+class Product(Base):
+    __tablename__ = "products"
+
+    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
+    category_id: Mapped[Optional[int]] = mapped_column(ForeignKey("categories.id"))
+    name: Mapped[Optional[str]] = mapped_column(Text)
+    description: Mapped[Optional[str]] = mapped_column(Text)
+
+    search_vector: Mapped[str] = mapped_column(TSVECTOR)
+
+    __table_args__ = (
+        Index("idx_products_search", "search_vector", postgresql_using="gin"),
+    )

handlers/__init__.py

@@ -0,0 +1,9 @@
+from aiogram import Dispatcher
+
+from .client import router as client_router
+from .admins import router as admins_router
+
+
+def init_handlers(dp: Dispatcher):
+    dp.include_router(client_router)
+    dp.include_router(admins_router)

handlers/admins.py

@@ -0,0 +1,9 @@
+from aiogram import Router
+from aiogram.types import Message
+
+router = Router()
+
+
+@router.message()
+async def echo(msg: Message):
+    await msg.answer(msg.text)

handlers/client.py

@@ -0,0 +1,32 @@
+from aiogram import Router
+from aiogram.types import Message
+from aiogram.filters import Command
+from aiogram.fsm.context import FSMContext
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from misc.kb import main_menu_kb
+from services.orders import OrderService
+
+router = Router()
+
+
+@router.message(Command("start"))
+async def main_menu(msg: Message, state: FSMContext):
+    await state.clear()
+
+    await msg.answer(
+        "hii!", reply_markup=await main_menu_kb(msg.from_user.id)
+    )  # TODO: Write a welcome message
+
+
+@router.message(Command("orders"))
+async def get_orders(
+    msg: Message,
+    state: FSMContext,
+    order_service: OrderService,
+    session: AsyncSession,
+):
+    await state.clear()
+
+    count = await order_service.get_order_count(session, msg.from_user.id)
+    await msg.answer(f"you have {count} orders.")

main.py

@@ -0,0 +1,40 @@
+import asyncio
+import logging
+from aiogram import Bot, Dispatcher
+
+from config import BOT_TOKEN
+from handlers import init_handlers
+
+from middlewares.di import DIMiddleware
+from middlewares.repository import RepositoryMiddleware
+from middlewares.session import DBSessionMiddleware
+from repositories.orders import OrderRepository
+from services import OrderService
+from db.base import async_session
+
+logging.basicConfig(level=logging.DEBUG)
+
+logger = logging.getLogger(__name__)
+
+
+async def main():
+    dp = Dispatcher()
+
+    bot = Bot(token=BOT_TOKEN)
+
+    # DB services creation
+    order_repository = OrderRepository()
+    order_service = OrderService(order_repository)
+
+    # DI Middleware Init
+    dp.message.middleware(DIMiddleware(order_service))
+    dp.message.middleware(DBSessionMiddleware(async_session))
+    dp.message.middleware(RepositoryMiddleware())
+
+    init_handlers(dp)
+
+    await dp.start_polling(bot)
+
+
+if __name__ == "__main__":
+    asyncio.run(main())

middlewares/__init__.py

@@ -0,0 +1,5 @@
+from .di import DIMiddleware
+from .repository import RepositoryMiddleware
+from .session import DBSessionMiddleware
+
+__all__ = ["DIMiddleware", "RepositoryMiddleware", "DBSessionMiddleware"]

middlewares/di.py

@@ -0,0 +1,19 @@
+from aiogram import BaseMiddleware
+from typing import Any, Callable
+
+from services.orders import OrderService
+
+
+class DIMiddleware(BaseMiddleware):
+    def __init__(self, order_service: OrderService):
+        self._order_service = order_service
+
+    async def __call__(
+        self,
+        handler: Callable,
+        event: Any,
+        data: dict[str, Any],
+    ) -> Any:
+        data["order_service"] = self._order_service
+
+        return await handler(event, data)

middlewares/repository.py

@@ -0,0 +1,9 @@
+from aiogram import BaseMiddleware
+
+from repositories.orders import OrderRepository
+
+
+class RepositoryMiddleware(BaseMiddleware):
+    async def __call__(self, handler, event, data):
+        data["order_repo"] = OrderRepository()
+        return await handler(event, data)

middlewares/session.py

@@ -0,0 +1,12 @@
+from aiogram import BaseMiddleware
+from sqlalchemy.ext.asyncio import async_sessionmaker
+
+
+class DBSessionMiddleware(BaseMiddleware):
+    def __init__(self, session_factory: async_sessionmaker):
+        self.session_factory = session_factory
+
+    async def __call__(self, handler, event, data):
+        async with self.session_factory() as session:
+            data["session"] = session
+            return await handler(event, data)

misc/kb/__init__.py

@@ -0,0 +1,4 @@
+from misc.kb.admins import *
+from misc.kb.client import *
+
+__all__ = ["admins", "client"]

misc/kb/client.py

@@ -0,0 +1,20 @@
+from aiogram.types import InlineKeyboardButton, InlineKeyboardMarkup
+from aiogram.utils.keyboard import InlineKeyboardBuilder
+
+
+async def cart_btn(user_id: int) -> InlineKeyboardButton:
+    return InlineKeyboardButton(
+        text="🛒 Корзина ()", callback_data="cart"
+    )  # TODO: Database integration, get cart items count
+
+
+async def main_menu_kb(user_id: int) -> InlineKeyboardMarkup:
+    return InlineKeyboardBuilder(
+        [
+            [
+                InlineKeyboardButton(text="📦 Каталог", callback_data="catalogue"),
+                InlineKeyboardButton(text="🔍", callback_data="find"),
+            ],
+            [await cart_btn(user_id)],
+        ]
+    ).as_markup()

postgresql.fish

@@ -0,0 +1 @@
+docker run --name test-postgres -e POSTGRES_PASSWORD=HEXDEVFUCKINGSUCKS! -p 5432:5432 -d postgres

pyproject.toml

@@ -0,0 +1,8 @@
+[tool.black]
+line-length = 88
+target-version = ["py314"]
+
+skip-string-normalization = false
+skip-magic-trailing-comma = false
+
+preview = false

repositories/orders.py

@@ -0,0 +1,21 @@
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select
+from typing import Optional, Union, List
+
+from db.models import Order, OrderItem, OrderStatus
+
+
+class OrderRepository:
+    async def get_order_by_id(
+        self, session: AsyncSession, order_id: int
+    ) -> Optional[Order]:
+        stmt = select(Order).where(Order.id == order_id)
+        return await session.scalar(stmt)
+
+    async def get_orders_by_user(
+        self, session: AsyncSession, user_id: int
+    ) -> list[Order]:
+        stmt = select(Order).where(Order.customer == user_id)
+        result = await session.scalars(stmt)
+
+        return list(result)

requirements.txt

@@ -0,0 +1,7 @@
+alembic
+aiogram
+python-dotenv
+black
+asyncpg
+sqlalchemy[asyncio]
+psycopg2

services/__init__.py

@@ -0,0 +1,3 @@
+from .orders import OrderService
+
+__all__ = ["OrderService"]

services/orders.py

@@ -0,0 +1,11 @@
+from sqlalchemy.ext.asyncio import AsyncSession
+from repositories.orders import OrderRepository
+
+
+class OrderService:
+    def __init__(self, order_repo: OrderRepository):
+        self.order_repo = order_repo
+
+    async def get_order_count(self, session: AsyncSession, user_id: int) -> int:
+        orders = await self.order_repo.get_orders_by_user(session, user_id)
+        return len(orders)