add database and migration logic (#27)

* update chat_microservice

* reformat logger_conf

* add database

* add service and repository logic

* fix constants gpt base url

* add models endpoints

bot_microservice/infra/database/migrations/__init__.py

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+"""Alembic migraions."""

bot_microservice/infra/database/migrations/env.py

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+import asyncio
+from logging.config import fileConfig
+
+from alembic import context
+from sqlalchemy.ext.asyncio.engine import create_async_engine
+from sqlalchemy.future import Connection
+
+from infra.database.db_adapter import load_all_models
+from infra.database.meta import meta
+from settings.config import settings
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# for 'autogenerate' support from myapp import mymodel
+load_all_models()
+
+# 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
+target_metadata = meta
+
+
+async 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.
+
+    """
+    context.configure(
+        url=str(settings.db_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:
+    """
+    Run actual sync migrations.
+
+    :param connection: connection to the database.
+
+    """
+    context.configure(connection=connection, target_metadata=target_metadata)
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+async 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 = create_async_engine(str(settings.db_url))
+
+    async with connectable.connect() as connection:
+        await connection.run_sync(do_run_migrations)
+
+
+if context.is_offline_mode():
+    asyncio.run(run_migrations_offline())
+else:
+    asyncio.run(run_migrations_online())

bot_microservice/infra/database/migrations/script.py.mako

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+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    ${downgrades if downgrades else "pass"}

bot_microservice/infra/database/migrations/versions/2023-10-05-18-28_eb78565abec7.py

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+"""initial commit
+
+Revision ID: eb78565abec7
+Revises: 
+Create Date: 2023-10-05 18:28:30.915361
+
+"""
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision = "eb78565abec7"
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table(
+        "chatgpt",
+        sa.Column("id", sa.INTEGER(), autoincrement=True, nullable=False),
+        sa.Column("model", sa.VARCHAR(length=256), nullable=False),
+        sa.Column("priority", sa.SMALLINT(), nullable=False),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("model"),
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table("chatgpt")
+    # ### end Alembic commands ###

bot_microservice/infra/database/migrations/versions/2023-10-05-20-44_c2e443941930.py

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+"""create chat gpt models
+
+Revision ID: c2e443941930
+Revises: eb78565abec7
+Create Date: 2025-10-05 20:44:05.414977
+
+"""
+
+from sqlalchemy import create_engine, select
+from sqlalchemy.orm import sessionmaker
+
+from constants import ChatGptModelsEnum
+from core.bot.models.chat_gpt import ChatGpt
+from settings.config import settings
+
+# revision identifiers, used by Alembic.
+revision = "c2e443941930"
+down_revision = "eb78565abec7"
+branch_labels: str | None = None
+depends_on: str | None = None
+
+engine = create_engine(str(settings.db_url), echo=settings.DB_ECHO)
+session_factory = sessionmaker(engine)
+
+
+def upgrade() -> None:
+    with session_factory() as session:
+        query = select(ChatGpt)
+        results = session.execute(query)
+        models = results.scalars().all()
+
+        if models:
+            return None
+        models = []
+        for model in ChatGptModelsEnum:
+            priority = 0 if model != "gpt-3.5-turbo-stream-FreeGpt" else 1
+            fields = {"model": model, "priority": priority}
+            models.append(ChatGpt(**fields))
+        session.add_all(models)
+        session.commit()
+
+
+def downgrade() -> None:
+    with session_factory() as session:
+        session.execute(f"""TRUNCATE TABLE {ChatGpt.__tablename__}""")
+        session.commit()
+
+
+engine.dispose()