Refactor services alembic

services/sales/alembic.ini

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+# ================================================================
+# services/sales/alembic.ini - Alembic Configuration
+# ================================================================
+[alembic]
+# path to migration scripts
+script_location = migrations
+
+# template used to generate migration file names
+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.
+prepend_sys_path = .
+
+# timezone to use when rendering the date within the migration file
+# as well as the filename.
+timezone = Europe/Madrid
+
+# 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 of a migration file's filename format
+version_num_format = %s
+
+# version path separator
+version_path_separator = os
+
+# set to 'true' to search source files recursively
+# in each "version_locations" directory
+recursive_version_locations = false
+
+# the output encoding used when revision files
+# are written from script.py.mako
+output_encoding = utf-8
+
+# Database URL - will be overridden by environment variable or settings
+sqlalchemy.url = postgresql+asyncpg://sales_user:password@sales-db-service:5432/sales_db
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts.
+
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+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

services/sales/migrations/env.py

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+"""Alembic environment configuration for sales service"""
+
+import asyncio
+import logging
+import os
+import sys
+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
+
+# Add the service directory to the Python path
+service_path = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
+if service_path not in sys.path:
+    sys.path.insert(0, service_path)
+
+# Add shared modules to path
+shared_path = os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "..", "shared"))
+if shared_path not in sys.path:
+    sys.path.insert(0, shared_path)
+
+try:
+    from app.core.config import settings
+    from shared.database.base import Base
+
+    # Import all models to ensure they are registered with Base.metadata
+    from app.models import *  # Import all models
+
+except ImportError as e:
+    print(f"Import error in migrations env.py: {e}")
+    print(f"Current Python path: {sys.path}")
+    raise
+
+# this is the Alembic Config object
+config = context.config
+
+# Set database URL from settings if not already set
+database_url = os.getenv('DATABASE_URL') or getattr(settings, 'DATABASE_URL', None)
+if database_url:
+    config.set_main_option("sqlalchemy.url", database_url)
+
+# Interpret the config file for Python logging
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# Set target metadata
+target_metadata = Base.metadata
+
+def run_migrations_offline() -> None:
+    """Run migrations in 'offline' mode."""
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+        compare_type=True,
+        compare_server_default=True,
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+def do_run_migrations(connection: Connection) -> None:
+    context.configure(
+        connection=connection,
+        target_metadata=target_metadata,
+        compare_type=True,
+        compare_server_default=True,
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+async def run_async_migrations() -> None:
+    """Run migrations in 'online' mode."""
+    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()

services/sales/migrations/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, 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:
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    ${downgrades if downgrades else "pass"}

services/sales/migrations/versions/001_initial_sales_tables.py

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+"""Initial sales service tables
+
+Revision ID: 001_initial_sales
+Revises:
+Create Date: 2024-01-01 12:00:00.000000
+
+"""
+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 = '001_initial_sales'
+down_revision: Union[str, None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # TODO: Add table creation statements for sales service
+    # This is a placeholder migration - replace with actual table definitions
+    pass
+
+
+def downgrade() -> None:
+    # TODO: Add table drop statements for sales service
+    pass