use reifydb_core::value::column::{ColumnWithName, buffer::ColumnBuffer, columns::Columns};
use reifydb_type::value::{r#type::Type, uuid::Uuid7};
use uuid::Uuid;
use crate::routine::{Function, FunctionKind, Routine, RoutineInfo, context::FunctionContext, error::RoutineError};
pub struct UuidV7 {
info: RoutineInfo,
}
impl Default for UuidV7 {
fn default() -> Self {
Self::new()
}
}
impl UuidV7 {
pub fn new() -> Self {
Self {
info: RoutineInfo::new("uuid::v7"),
}
}
}
impl<'a> Routine<FunctionContext<'a>> for UuidV7 {
fn info(&self) -> &RoutineInfo {
&self.info
}
fn return_type(&self, _input_types: &[Type]) -> Type {
Type::Uuid7
}
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: 0,
actual: args.len(),
});
}
if args.is_empty() {
let uuid = Uuid7::generate(&ctx.runtime_context.clock, &ctx.runtime_context.rng);
let result_data = ColumnBuffer::uuid7(vec![uuid]);
return Ok(Columns::new(vec![ColumnWithName::new(ctx.fragment.clone(), result_data)]));
}
let column = &args[0];
let (data, bitvec) = column.unwrap_option();
let row_count = data.len();
match data {
ColumnBuffer::Utf8 {
container,
..
} => {
let mut result = Vec::with_capacity(row_count);
for i in 0..row_count {
let s = container.get(i).unwrap();
let parsed = Uuid::parse_str(s).map_err(|e| {
RoutineError::FunctionExecutionFailed {
function: ctx.fragment.clone(),
reason: format!("invalid UUID string '{}': {}", s, e),
}
})?;
if parsed.get_version_num() != 7 {
return Err(RoutineError::FunctionExecutionFailed {
function: ctx.fragment.clone(),
reason: format!(
"expected UUID v7, got v{}",
parsed.get_version_num()
),
});
}
result.push(Uuid7::from(parsed));
}
let result_data = ColumnBuffer::uuid7(result);
let final_data = match bitvec {
Some(bv) => ColumnBuffer::Option {
inner: Box::new(result_data),
bitvec: bv.clone(),
},
None => result_data,
};
Ok(Columns::new(vec![ColumnWithName::new(ctx.fragment.clone(), final_data)]))
}
other => Err(RoutineError::FunctionInvalidArgumentType {
function: ctx.fragment.clone(),
argument_index: 0,
expected: vec![Type::Utf8],
actual: other.get_type(),
}),
}
}
}
impl Function for UuidV7 {
fn kinds(&self) -> &[FunctionKind] {
&[FunctionKind::Scalar]
}
}