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reifydb_function/duration/
add.rs

1// SPDX-License-Identifier: AGPL-3.0-or-later
2// Copyright (c) 2025 ReifyDB
3
4use reifydb_core::value::column::data::ColumnData;
5use reifydb_type::value::{container::temporal::TemporalContainer, r#type::Type};
6
7use crate::{ScalarFunction, ScalarFunctionContext, error::ScalarFunctionError, propagate_options};
8
9pub struct DurationAdd;
10
11impl DurationAdd {
12	pub fn new() -> Self {
13		Self
14	}
15}
16
17impl ScalarFunction for DurationAdd {
18	fn scalar(&self, ctx: ScalarFunctionContext) -> crate::error::ScalarFunctionResult<ColumnData> {
19		if let Some(result) = propagate_options(self, &ctx) {
20			return result;
21		}
22		let columns = ctx.columns;
23		let row_count = ctx.row_count;
24
25		if columns.len() != 2 {
26			return Err(ScalarFunctionError::ArityMismatch {
27				function: ctx.fragment.clone(),
28				expected: 2,
29				actual: columns.len(),
30			});
31		}
32
33		let lhs_col = columns.get(0).unwrap();
34		let rhs_col = columns.get(1).unwrap();
35
36		match (lhs_col.data(), rhs_col.data()) {
37			(ColumnData::Duration(lhs_container), ColumnData::Duration(rhs_container)) => {
38				let mut container = TemporalContainer::with_capacity(row_count);
39
40				for i in 0..row_count {
41					match (lhs_container.get(i), rhs_container.get(i)) {
42						(Some(lv), Some(rv)) => {
43							container.push(*lv + *rv);
44						}
45						_ => container.push_default(),
46					}
47				}
48
49				Ok(ColumnData::Duration(container))
50			}
51			(ColumnData::Duration(_), other) => Err(ScalarFunctionError::InvalidArgumentType {
52				function: ctx.fragment.clone(),
53				argument_index: 1,
54				expected: vec![Type::Duration],
55				actual: other.get_type(),
56			}),
57			(other, _) => Err(ScalarFunctionError::InvalidArgumentType {
58				function: ctx.fragment.clone(),
59				argument_index: 0,
60				expected: vec![Type::Duration],
61				actual: other.get_type(),
62			}),
63		}
64	}
65
66	fn return_type(&self, _input_types: &[Type]) -> Type {
67		Type::Duration
68	}
69}