use num_traits::sign::Signed;
use reifydb_core::value::column::{ColumnWithName, buffer::ColumnBuffer, columns::Columns};
use reifydb_type::value::{container::number::NumberContainer, decimal::Decimal, int::Int, r#type::Type, uint::Uint};
use crate::routine::{Function, FunctionKind, Routine, RoutineInfo, context::FunctionContext, error::RoutineError};
pub struct Abs {
info: RoutineInfo,
}
impl Default for Abs {
fn default() -> Self {
Self::new()
}
}
impl Abs {
pub fn new() -> Self {
Self {
info: RoutineInfo::new("math::abs"),
}
}
}
impl<'a> Routine<FunctionContext<'a>> for Abs {
fn info(&self) -> &RoutineInfo {
&self.info
}
fn return_type(&self, input_types: &[Type]) -> Type {
input_types.first().cloned().unwrap_or(Type::Float8)
}
fn execute(&self, ctx: &mut FunctionContext<'a>, args: &Columns) -> Result<Columns, RoutineError> {
if args.len() != 1 {
return Err(RoutineError::FunctionArityMismatch {
function: ctx.fragment.clone(),
expected: 1,
actual: args.len(),
});
}
let column = &args[0];
let (data, bitvec) = column.unwrap_option();
let row_count = data.len();
let result_data = match data {
ColumnBuffer::Int1(container) => {
let mut data = Vec::with_capacity(row_count);
let mut res_bitvec = Vec::with_capacity(row_count);
for i in 0..row_count {
if let Some(&value) = container.get(i) {
data.push(value.abs());
res_bitvec.push(true);
} else {
data.push(0);
res_bitvec.push(false);
}
}
ColumnBuffer::int1_with_bitvec(data, res_bitvec)
}
ColumnBuffer::Int2(container) => {
let mut data = Vec::with_capacity(row_count);
let mut res_bitvec = Vec::with_capacity(row_count);
for i in 0..row_count {
if let Some(&value) = container.get(i) {
data.push(value.abs());
res_bitvec.push(true);
} else {
data.push(0);
res_bitvec.push(false);
}
}
ColumnBuffer::int2_with_bitvec(data, res_bitvec)
}
ColumnBuffer::Int4(container) => {
let mut data = Vec::with_capacity(row_count);
let mut res_bitvec = Vec::with_capacity(row_count);
for i in 0..row_count {
if let Some(&value) = container.get(i) {
data.push(value.abs());
res_bitvec.push(true);
} else {
data.push(0);
res_bitvec.push(false);
}
}
ColumnBuffer::int4_with_bitvec(data, res_bitvec)
}
ColumnBuffer::Int8(container) => {
let mut data = Vec::with_capacity(row_count);
let mut res_bitvec = Vec::with_capacity(row_count);
for i in 0..row_count {
if let Some(&value) = container.get(i) {
data.push(value.abs());
res_bitvec.push(true);
} else {
data.push(0);
res_bitvec.push(false);
}
}
ColumnBuffer::int8_with_bitvec(data, res_bitvec)
}
ColumnBuffer::Int16(container) => {
let mut data = Vec::with_capacity(row_count);
let mut res_bitvec = Vec::with_capacity(row_count);
for i in 0..row_count {
if let Some(&value) = container.get(i) {
data.push(value.abs());
res_bitvec.push(true);
} else {
data.push(0);
res_bitvec.push(false);
}
}
ColumnBuffer::int16_with_bitvec(data, res_bitvec)
}
ColumnBuffer::Uint1(container) => {
let mut data = Vec::with_capacity(row_count);
let mut res_bitvec = Vec::with_capacity(row_count);
for i in 0..row_count {
if let Some(&value) = container.get(i) {
data.push(value);
res_bitvec.push(true);
} else {
data.push(0);
res_bitvec.push(false);
}
}
ColumnBuffer::uint1_with_bitvec(data, res_bitvec)
}
ColumnBuffer::Uint2(container) => {
let mut data = Vec::with_capacity(row_count);
let mut res_bitvec = Vec::with_capacity(row_count);
for i in 0..row_count {
if let Some(&value) = container.get(i) {
data.push(value);
res_bitvec.push(true);
} else {
data.push(0);
res_bitvec.push(false);
}
}
ColumnBuffer::uint2_with_bitvec(data, res_bitvec)
}
ColumnBuffer::Uint4(container) => {
let mut data = Vec::with_capacity(row_count);
let mut res_bitvec = Vec::with_capacity(row_count);
for i in 0..row_count {
if let Some(&value) = container.get(i) {
data.push(value);
res_bitvec.push(true);
} else {
data.push(0);
res_bitvec.push(false);
}
}
ColumnBuffer::uint4_with_bitvec(data, res_bitvec)
}
ColumnBuffer::Uint8(container) => {
let mut data = Vec::with_capacity(row_count);
let mut res_bitvec = Vec::with_capacity(row_count);
for i in 0..row_count {
if let Some(&value) = container.get(i) {
data.push(value);
res_bitvec.push(true);
} else {
data.push(0);
res_bitvec.push(false);
}
}
ColumnBuffer::uint8_with_bitvec(data, res_bitvec)
}
ColumnBuffer::Uint16(container) => {
let mut data = Vec::with_capacity(row_count);
let mut res_bitvec = Vec::with_capacity(row_count);
for i in 0..row_count {
if let Some(&value) = container.get(i) {
data.push(value);
res_bitvec.push(true);
} else {
data.push(0);
res_bitvec.push(false);
}
}
ColumnBuffer::uint16_with_bitvec(data, res_bitvec)
}
ColumnBuffer::Float4(container) => {
let mut data = Vec::with_capacity(row_count);
let mut res_bitvec = Vec::with_capacity(row_count);
for i in 0..row_count {
if let Some(&value) = container.get(i) {
data.push(value.abs());
res_bitvec.push(true);
} else {
data.push(0.0);
res_bitvec.push(false);
}
}
ColumnBuffer::float4_with_bitvec(data, res_bitvec)
}
ColumnBuffer::Float8(container) => {
let mut data = Vec::with_capacity(row_count);
let mut res_bitvec = Vec::with_capacity(row_count);
for i in 0..row_count {
if let Some(&value) = container.get(i) {
data.push(value.abs());
res_bitvec.push(true);
} else {
data.push(0.0);
res_bitvec.push(false);
}
}
ColumnBuffer::float8_with_bitvec(data, res_bitvec)
}
ColumnBuffer::Int {
container,
max_bytes,
} => {
let mut data = Vec::with_capacity(row_count);
for i in 0..row_count {
if let Some(value) = container.get(i) {
data.push(Int::from(value.0.clone().abs()));
} else {
data.push(Int::default());
}
}
ColumnBuffer::Int {
container: NumberContainer::new(data),
max_bytes: *max_bytes,
}
}
ColumnBuffer::Uint {
container,
max_bytes,
} => {
let mut data = Vec::with_capacity(row_count);
for i in 0..row_count {
if let Some(value) = container.get(i) {
data.push(value.clone());
} else {
data.push(Uint::default());
}
}
ColumnBuffer::Uint {
container: NumberContainer::new(data),
max_bytes: *max_bytes,
}
}
ColumnBuffer::Decimal {
container,
precision,
scale,
} => {
let mut data = Vec::with_capacity(row_count);
for i in 0..row_count {
if let Some(value) = container.get(i) {
data.push(Decimal::from(value.0.clone().abs()));
} else {
data.push(Decimal::default());
}
}
ColumnBuffer::Decimal {
container: NumberContainer::new(data),
precision: *precision,
scale: *scale,
}
}
other => {
return Err(RoutineError::FunctionInvalidArgumentType {
function: ctx.fragment.clone(),
argument_index: 0,
expected: vec![
Type::Int1,
Type::Int2,
Type::Int4,
Type::Int8,
Type::Int16,
Type::Uint1,
Type::Uint2,
Type::Uint4,
Type::Uint8,
Type::Uint16,
Type::Float4,
Type::Float8,
Type::Int,
Type::Uint,
Type::Decimal,
],
actual: other.get_type(),
});
}
};
let final_data = if let Some(bv) = bitvec {
ColumnBuffer::Option {
inner: Box::new(result_data),
bitvec: bv.clone(),
}
} else {
result_data
};
Ok(Columns::new(vec![ColumnWithName::new(ctx.fragment.clone(), final_data)]))
}
}
impl Function for Abs {
fn kinds(&self) -> &[FunctionKind] {
&[FunctionKind::Scalar]
}
}