from logging.config import fileConfig

from alembic import context
from sqlalchemy import engine_from_config, pool

from app.core.config import get_settings
from app.core.database import Base
from app import models  # noqa: F401

config = context.config
# Alembic stores options in a ConfigParser, which applies %-interpolation to
# values. A URL-encoded password (for example "%40" for "@") would otherwise
# raise "invalid interpolation syntax", so escape percent signs on the way in.
# get_main_option/get_section return the original URL once unescaped.
config.set_main_option(
    "sqlalchemy.url",
    get_settings().database_url.replace("%", "%%"),
)

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=config.get_main_option("sqlalchemy.url"),
        target_metadata=target_metadata,
        literal_binds=True,
        dialect_opts={"paramstyle": "named"},
        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()