import click
import sqlite_utils


@click.group()
@click.version_option()
def cli():
    "Commands for interacting with a SQLite database"
    pass


@cli.command()
@click.argument(
    "path",
    type=click.Path(exists=True, file_okay=True, dir_okay=False, allow_dash=False),
    required=True,
)
@click.option(
    "--fts4", help="Just show FTS4 enabled tables", default=False, is_flag=True
)
@click.option(
    "--fts5", help="Just show FTS5 enabled tables", default=False, is_flag=True
)
def table_names(path, fts4, fts5):
    """List the tables in the database"""
    db = sqlite_utils.Database(path)
    for name in db.table_names(fts4=fts4, fts5=fts5):
        print(name)


@cli.command()
@click.argument(
    "path",
    type=click.Path(exists=True, file_okay=True, dir_okay=False, allow_dash=False),
    required=True,
)
def vacuum(path):
    """Run VACUUM against the database"""
    sqlite_utils.Database(path).vacuum()


@cli.command()
@click.argument(
    "path",
    type=click.Path(exists=True, file_okay=True, dir_okay=False, allow_dash=False),
    required=True,
)
@click.option("--no-vacuum", help="Don't run VACUUM", default=False, is_flag=True)
def optimize(path, no_vacuum):
    """Optimize all FTS tables and then run VACUUM - should shrink the database file"""
    db = sqlite_utils.Database(path)
    tables = db.table_names(fts4=True) + db.table_names(fts5=True)
    with db.conn:
        for table in tables:
            db[table].optimize()
    if not no_vacuum:
        db.vacuum()