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// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

use datafusion::logical_expr::Subquery;
use pyo3::prelude::*;

use super::subquery::PySubquery;

#[pyclass(frozen, name = "ScalarSubquery", module = "datafusion.expr", subclass)]
#[derive(Clone)]
pub struct PyScalarSubquery {
    subquery: Subquery,
}

impl From<PyScalarSubquery> for Subquery {
    fn from(subquery: PyScalarSubquery) -> Self {
        subquery.subquery
    }
}

impl From<Subquery> for PyScalarSubquery {
    fn from(subquery: Subquery) -> PyScalarSubquery {
        PyScalarSubquery { subquery }
    }
}

#[pymethods]
impl PyScalarSubquery {
    fn subquery(&self) -> PySubquery {
        self.subquery.clone().into()
    }
}