reifydb_routine/function/date/
age.rs

1// SPDX-License-Identifier: Apache-2.0
2// Copyright (c) 2025 ReifyDB
3
4use reifydb_core::value::column::{ColumnWithName, buffer::ColumnBuffer, columns::Columns};
5use reifydb_type::{
6	error::TypeError,
7	value::{container::temporal::TemporalContainer, date::Date, duration::Duration, r#type::Type},
8};
9
10use crate::routine::{Function, FunctionKind, Routine, RoutineInfo, context::FunctionContext, error::RoutineError};
11
12pub struct DateAge {
13	info: RoutineInfo,
14}
15
16impl Default for DateAge {
17	fn default() -> Self {
18		Self::new()
19	}
20}
21
22impl DateAge {
23	pub fn new() -> Self {
24		Self {
25			info: RoutineInfo::new("date::age"),
26		}
27	}
28}
29
30pub fn date_age(d1: &Date, d2: &Date) -> Result<Duration, Box<TypeError>> {
31	let y1 = d1.year();
32	let m1 = d1.month() as i32;
33	let day1 = d1.day() as i32;
34
35	let y2 = d2.year();
36	let m2 = d2.month() as i32;
37	let day2 = d2.day() as i32;
38
39	let mut years = y1 - y2;
40	let mut months = m1 - m2;
41	let mut days = day1 - day2;
42
43	if days < 0 {
44		months -= 1;
45
46		let borrow_month = if m1 - 1 < 1 {
47			12
48		} else {
49			m1 - 1
50		};
51		let borrow_year = if m1 - 1 < 1 {
52			y1 - 1
53		} else {
54			y1
55		};
56		days += Date::days_in_month(borrow_year, borrow_month as u32) as i32;
57	}
58
59	if months < 0 {
60		years -= 1;
61		months += 12;
62	}
63
64	let total_months = years * 12 + months;
65	Duration::new(total_months, days, 0)
66}
67
68impl<'a> Routine<FunctionContext<'a>> for DateAge {
69	fn info(&self) -> &RoutineInfo {
70		&self.info
71	}
72
73	fn return_type(&self, _input_types: &[Type]) -> Type {
74		Type::Duration
75	}
76
77	fn execute(&self, ctx: &mut FunctionContext<'a>, args: &Columns) -> Result<Columns, RoutineError> {
78		if args.len() != 2 {
79			return Err(RoutineError::FunctionArityMismatch {
80				function: ctx.fragment.clone(),
81				expected: 2,
82				actual: args.len(),
83			});
84		}
85
86		let col1 = &args[0];
87		let col2 = &args[1];
88		let (data1, bitvec1) = col1.unwrap_option();
89		let (data2, bitvec2) = col2.unwrap_option();
90		let row_count = data1.len();
91
92		let result_data = match (data1, data2) {
93			(ColumnBuffer::Date(container1), ColumnBuffer::Date(container2)) => {
94				let mut container = TemporalContainer::with_capacity(row_count);
95
96				for i in 0..row_count {
97					match (container1.get(i), container2.get(i)) {
98						(Some(d1), Some(d2)) => {
99							container.push(date_age(d1, d2)?);
100						}
101						_ => container.push_default(),
102					}
103				}
104
105				ColumnBuffer::Duration(container)
106			}
107			(ColumnBuffer::Date(_), other) => {
108				return Err(RoutineError::FunctionInvalidArgumentType {
109					function: ctx.fragment.clone(),
110					argument_index: 1,
111					expected: vec![Type::Date],
112					actual: other.get_type(),
113				});
114			}
115			(other, _) => {
116				return Err(RoutineError::FunctionInvalidArgumentType {
117					function: ctx.fragment.clone(),
118					argument_index: 0,
119					expected: vec![Type::Date],
120					actual: other.get_type(),
121				});
122			}
123		};
124
125		let final_data = match (bitvec1, bitvec2) {
126			(Some(bv), _) | (_, Some(bv)) => ColumnBuffer::Option {
127				inner: Box::new(result_data),
128				bitvec: bv.clone(),
129			},
130			_ => result_data,
131		};
132
133		Ok(Columns::new(vec![ColumnWithName::new(ctx.fragment.clone(), final_data)]))
134	}
135}
136
137impl Function for DateAge {
138	fn kinds(&self) -> &[FunctionKind] {
139		&[FunctionKind::Scalar]
140	}
141}
reifydb_routine/function/date/age.rs

reifydb_routine/function/date/
age.rs
