use bytes::BufMut;
use crate::{
DecodeBorrow, Encode, ProtocolError, UnknownTaggedFields,
primitives::{
fixed::{get_i32, get_i64, put_i32, put_i64},
string_bytes::{compact_string_len, put_compact_string, put_string, string_len},
string_bytes_borrowed::{get_compact_string_borrowed, get_string_borrowed},
},
tagged_fields::{WriteTaggedFields, encode_to_bytes, read_tagged_fields, tagged_fields_len},
};
pub const MIN_VERSION: i16 = 0;
pub const MAX_VERSION: i16 = 4;
pub const FLEXIBLE_MIN: i16 = 4;
#[inline]
#[must_use]
pub fn is_flexible(version: i16) -> bool {
version >= FLEXIBLE_MIN
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct OffsetCommitValue<'a> {
pub offset: i64,
pub leader_epoch: i32,
pub metadata: &'a str,
pub commit_timestamp: i64,
pub expire_timestamp: i64,
pub topic_id: crate::primitives::uuid::Uuid,
pub unknown_tagged_fields: UnknownTaggedFields,
}
impl Default for OffsetCommitValue<'_> {
fn default() -> Self {
Self {
offset: 0i64,
leader_epoch: -1i32,
metadata: "",
commit_timestamp: 0i64,
expire_timestamp: -1i64,
topic_id: crate::primitives::uuid::Uuid::default(),
unknown_tagged_fields: UnknownTaggedFields::default(),
}
}
}
impl OffsetCommitValue<'_> {
#[must_use]
pub fn to_owned(&self) -> crate::owned::offset_commit_value::OffsetCommitValue {
crate::owned::offset_commit_value::OffsetCommitValue {
offset: (self.offset),
leader_epoch: (self.leader_epoch),
metadata: (self.metadata).to_string(),
commit_timestamp: (self.commit_timestamp),
expire_timestamp: (self.expire_timestamp),
topic_id: (self.topic_id),
unknown_tagged_fields: self.unknown_tagged_fields.clone(),
}
}
}
impl Encode for OffsetCommitValue<'_> {
fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
if !(MIN_VERSION..=MAX_VERSION).contains(&version) {
return Err(ProtocolError::SchemaMismatch(
"OffsetCommitValue version out of range",
));
}
let flex = is_flexible(version);
if version >= 0 {
put_i64(buf, self.offset);
}
if version >= 3 {
put_i32(buf, self.leader_epoch);
}
if version >= 0 {
if flex {
let () = put_compact_string(buf, self.metadata);
} else {
let () = put_string(buf, self.metadata);
}
}
if version >= 0 {
put_i64(buf, self.commit_timestamp);
}
if version == 1 {
put_i64(buf, self.expire_timestamp);
}
if flex {
let mut tagged = WriteTaggedFields::new();
if !(crate::codegen_helpers::is_default(&self.topic_id)) {
let payload = encode_to_bytes(16, |b| {
crate::primitives::uuid::put_uuid(b, self.topic_id);
Ok(())
});
tagged.add(0, payload);
}
tagged.write(buf, &self.unknown_tagged_fields);
}
Ok(())
}
fn encoded_len(&self, version: i16) -> usize {
let flex = is_flexible(version);
let mut n: usize = 0;
if version >= 0 {
n += 8;
}
if version >= 3 {
n += 4;
}
if version >= 0 {
n += if flex {
compact_string_len(self.metadata)
} else {
string_len(self.metadata)
};
}
if version >= 0 {
n += 8;
}
if version == 1 {
n += 8;
}
if flex {
let mut known_pairs: Vec<(u32, usize)> = Vec::new();
if !(crate::codegen_helpers::is_default(&self.topic_id)) {
known_pairs.push((0, 16));
}
n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
}
n
}
}
impl<'de> DecodeBorrow<'de> for OffsetCommitValue<'de> {
fn decode_borrow(buf: &mut &'de [u8], version: i16) -> Result<Self, ProtocolError> {
if !(MIN_VERSION..=MAX_VERSION).contains(&version) {
return Err(ProtocolError::SchemaMismatch(
"OffsetCommitValue version out of range",
));
}
let flex = is_flexible(version);
let mut out = Self::default();
if version >= 0 {
out.offset = get_i64(buf)?;
}
if version >= 3 {
out.leader_epoch = get_i32(buf)?;
}
if version >= 0 {
out.metadata = if flex {
get_compact_string_borrowed(buf)?
} else {
get_string_borrowed(buf)?
};
}
if version >= 0 {
out.commit_timestamp = get_i64(buf)?;
}
if version == 1 {
out.expire_timestamp = get_i64(buf)?;
}
if flex {
let mut tag_topic_id = None;
out.unknown_tagged_fields = read_tagged_fields(buf, |tag, payload| match tag {
0 => {
tag_topic_id = Some({
let b: &mut &[u8] = payload;
crate::primitives::uuid::get_uuid(b)?
});
Ok(true)
}
_ => Ok(false),
})?;
if let Some(v) = tag_topic_id {
out.topic_id = v;
}
}
Ok(out)
}
}
#[cfg(test)]
impl OffsetCommitValue<'_> {
#[must_use]
pub fn populated(version: i16) -> Self {
let mut m = Self::default();
if version >= 0 {
m.offset = 1i64;
}
if version >= 3 {
m.leader_epoch = 1i32;
}
if version >= 0 {
m.metadata = "x";
}
if version >= 0 {
m.commit_timestamp = 1i64;
}
if version == 1 {
m.expire_timestamp = 1i64;
}
if version >= 4 {
m.topic_id = crate::primitives::uuid::Uuid([1u8; 16]);
}
m
}
}