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//   http://www.apache.org/licenses/LICENSE-2.0
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use arrow::compute::cast;
use arrow_array::builder::Decimal128Builder;
use arrow_schema::DataType;
use criterion::{black_box, criterion_group, criterion_main, Criterion};
use datafusion_comet_spark_expr::scalar_funcs::spark_decimal_div;
use datafusion_expr::ColumnarValue;
use std::sync::Arc;

fn criterion_benchmark(c: &mut Criterion) {
    // create input data
    let mut c1 = Decimal128Builder::new();
    let mut c2 = Decimal128Builder::new();
    for i in 0..1000 {
        c1.append_value(99999999 + i);
        c2.append_value(88888888 - i);
    }
    let c1 = Arc::new(c1.finish());
    let c2 = Arc::new(c2.finish());

    let c1_type = DataType::Decimal128(10, 4);
    let c1 = cast(c1.as_ref(), &c1_type).unwrap();
    let c2_type = DataType::Decimal128(10, 3);
    let c2 = cast(c2.as_ref(), &c2_type).unwrap();

    let args = [ColumnarValue::Array(c1), ColumnarValue::Array(c2)];
    c.bench_function("decimal_div", |b| {
        b.iter(|| {
            black_box(spark_decimal_div(
                black_box(&args),
                black_box(&DataType::Decimal128(10, 4)),
            ))
        })
    });
}

criterion_group!(benches, criterion_benchmark);
criterion_main!(benches);