from __future__ import annotations

import sys
from logging.config import fileConfig
from pathlib import Path

from alembic import context
from sqlalchemy import engine_from_config, pool

BACKEND_DIR = Path(__file__).resolve().parents[1]
if str(BACKEND_DIR) not in sys.path:
    sys.path.insert(0, str(BACKEND_DIR))

from app.core.config import get_alembic_database_url, get_settings  # noqa: E402
from app.models import entities  # noqa: F401, E402
from app.models.base import Base  # noqa: E402

config = context.config
settings = get_settings()
alembic_url = get_alembic_database_url(settings.database_url)
config.set_main_option("sqlalchemy.url", alembic_url)

if config.config_file_name is not None:
    fileConfig(config.config_file_name)

target_metadata = Base.metadata


def run_migrations_offline() -> None:
    context.configure(
        url=alembic_url,
        target_metadata=target_metadata,
        literal_binds=True,
        compare_type=True,
    )
    with context.begin_transaction():
        context.run_migrations()


def run_migrations_online() -> None:
    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, compare_type=True)
        with context.begin_transaction():
            context.run_migrations()


if context.is_offline_mode():
    run_migrations_offline()
else:
    run_migrations_online()