crabka-protocol 0.1.2

// AUTO-GENERATED by crabka-protocol-codegen against a9ce3221537b8653448750697915607dc7936cf3. Do not edit.

use bytes::{Buf, BufMut};

use crate::primitives::fixed::{get_i32, get_i64, get_i8, put_i32, put_i64, put_i8};
use crate::primitives::string_bytes::{
    compact_nullable_string_len, compact_string_len, get_compact_nullable_string_owned,
    get_compact_string_owned, get_nullable_string_owned, get_string_owned, nullable_string_len,
    put_compact_nullable_string, put_compact_string, put_nullable_string, put_string,
    string_len,
};
use crate::tagged_fields::{encode_to_bytes, read_tagged_fields, tagged_fields_len, WriteTaggedFields};
use crate::{Decode, Encode, ProtocolError, UnknownTaggedFields};

pub const API_KEY: i16 = 1;
pub const MIN_VERSION: i16 = 4;
pub const MAX_VERSION: i16 = 18;
pub const FLEXIBLE_MIN: i16 = 12;

#[inline]
fn is_flexible(version: i16) -> bool { version >= FLEXIBLE_MIN }

#[derive(Debug, Clone, PartialEq, Eq)]
pub struct FetchRequest {
    pub replica_id: i32,
    pub max_wait_ms: i32,
    pub min_bytes: i32,
    pub max_bytes: i32,
    pub isolation_level: i8,
    pub session_id: i32,
    pub session_epoch: i32,
    pub topics: Vec<FetchTopic>,
    pub forgotten_topics_data: Vec<ForgottenTopic>,
    pub rack_id: String,
    pub cluster_id: Option<String>,
    pub replica_state: ReplicaState,
    pub unknown_tagged_fields: UnknownTaggedFields,
}

impl Default for FetchRequest {
    fn default() -> Self {
        Self {
            replica_id: -1i32,
            max_wait_ms: 0i32,
            min_bytes: 0i32,
            max_bytes: 2_147_483_647i32,
            isolation_level: 0i8,
            session_id: 0i32,
            session_epoch: -1i32,
            topics: Vec::new(),
            forgotten_topics_data: Vec::new(),
            rack_id: "".to_string(),
            cluster_id: None,
            replica_state: Default::default(),
            unknown_tagged_fields: Default::default(),
        }
    }
}

impl Encode for FetchRequest {
    fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
        if !(MIN_VERSION..=MAX_VERSION).contains(&version) {
            return Err(ProtocolError::UnsupportedVersion { api_key: API_KEY, version });
        }
        let flex = is_flexible(version);
        if version >= 0 && version <= 14 { put_i32(buf, self.replica_id) }
        if version >= 0 { put_i32(buf, self.max_wait_ms) }
        if version >= 0 { put_i32(buf, self.min_bytes) }
        if version >= 3 { put_i32(buf, self.max_bytes) }
        if version >= 4 { put_i8(buf, self.isolation_level) }
        if version >= 7 { put_i32(buf, self.session_id) }
        if version >= 7 { put_i32(buf, self.session_epoch) }
        if version >= 0 { { crate::primitives::array::put_array_len(buf, (self.topics).len(), flex); for it in &self.topics { it.encode(buf, version)?; } } }
        if version >= 7 { { crate::primitives::array::put_array_len(buf, (self.forgotten_topics_data).len(), flex); for it in &self.forgotten_topics_data { it.encode(buf, version)?; } } }
        if version >= 11 { if flex { put_compact_string(buf, &self.rack_id) } else { put_string(buf, &self.rack_id) } }
        if flex {
            let mut tagged = WriteTaggedFields::new();
            if !(self.cluster_id.is_none()) {
                let payload = encode_to_bytes(if flex { compact_nullable_string_len(self.cluster_id.as_deref()) } else { nullable_string_len(self.cluster_id.as_deref()) }, |b| { if flex { put_compact_nullable_string(b, self.cluster_id.as_deref()) } else { put_nullable_string(b, self.cluster_id.as_deref()) }; Ok(()) });
                tagged.add(0, payload);
            }
            if !(crate::codegen_helpers::is_default(&self.replica_state)) {
                let payload = encode_to_bytes(self.replica_state.encoded_len(version), |b| { self.replica_state.encode(b, version)?; Ok(()) });
                tagged.add(1, 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 && version <= 14 { n += 4; }
        if version >= 0 { n += 4; }
        if version >= 0 { n += 4; }
        if version >= 3 { n += 4; }
        if version >= 4 { n += 1; }
        if version >= 7 { n += 4; }
        if version >= 7 { n += 4; }
        if version >= 0 { n += { let prefix = crate::primitives::array::array_len_prefix_len((self.topics).len(), flex); let body: usize = (self.topics).iter().map(|it| it.encoded_len(version)).sum(); prefix + body }; }
        if version >= 7 { n += { let prefix = crate::primitives::array::array_len_prefix_len((self.forgotten_topics_data).len(), flex); let body: usize = (self.forgotten_topics_data).iter().map(|it| it.encoded_len(version)).sum(); prefix + body }; }
        if version >= 11 { n += if flex { compact_string_len(&self.rack_id) } else { string_len(&self.rack_id) }; }
        if flex {
            let mut known_pairs: Vec<(u32, usize)> = Vec::new();
            if !(self.cluster_id.is_none()) {
                known_pairs.push((0, if flex { compact_nullable_string_len(self.cluster_id.as_deref()) } else { nullable_string_len(self.cluster_id.as_deref()) }));
            }
            if !(crate::codegen_helpers::is_default(&self.replica_state)) {
                known_pairs.push((1, self.replica_state.encoded_len(version)));
            }
            n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
        }
        n
    }
}

impl<'de> Decode<'de> for FetchRequest {
    fn decode<B: Buf>(buf: &mut B, version: i16) -> Result<Self, ProtocolError> {
        if !(MIN_VERSION..=MAX_VERSION).contains(&version) {
            return Err(ProtocolError::UnsupportedVersion { api_key: API_KEY, version });
        }
        let flex = is_flexible(version);
        let mut out = Self::default();
        if version >= 0 && version <= 14 { out.replica_id = get_i32(buf)?; }
        if version >= 0 { out.max_wait_ms = get_i32(buf)?; }
        if version >= 0 { out.min_bytes = get_i32(buf)?; }
        if version >= 3 { out.max_bytes = get_i32(buf)?; }
        if version >= 4 { out.isolation_level = get_i8(buf)?; }
        if version >= 7 { out.session_id = get_i32(buf)?; }
        if version >= 7 { out.session_epoch = get_i32(buf)?; }
        if version >= 0 { out.topics = { let n = crate::primitives::array::get_array_len(buf, flex)?; let mut v = Vec::with_capacity(n); for _ in 0..n { v.push(FetchTopic::decode(buf, version)?); } v }; }
        if version >= 7 { out.forgotten_topics_data = { let n = crate::primitives::array::get_array_len(buf, flex)?; let mut v = Vec::with_capacity(n); for _ in 0..n { v.push(ForgottenTopic::decode(buf, version)?); } v }; }
        if version >= 11 { out.rack_id = if flex { get_compact_string_owned(buf)? } else { get_string_owned(buf)? }; }
        if flex {
            // Pre-declare typed slots for known tagged fields.
            let mut tag_cluster_id = None;
            let mut tag_replica_state = None;
            out.unknown_tagged_fields = read_tagged_fields(buf, |tag, payload| {
                match tag {
                0 => { tag_cluster_id = Some({ let b: &mut &[u8] = payload; if flex { get_compact_nullable_string_owned(b)? } else { get_nullable_string_owned(b)? } }); Ok(true) }
                1 => { tag_replica_state = Some({ let b: &mut &[u8] = payload; ReplicaState::decode(b, version)? }); Ok(true) }
                    _ => Ok(false),
                }
            })?;
            if let Some(v) = tag_cluster_id { out.cluster_id = v; }
            if let Some(v) = tag_replica_state { out.replica_state = v; }
        }
        Ok(out)
    }
}

#[derive(Debug, Clone, PartialEq, Eq)]
pub struct ReplicaState {
    pub replica_id: i32,
    pub replica_epoch: i64,
    pub unknown_tagged_fields: UnknownTaggedFields,
}

impl Default for ReplicaState {
    fn default() -> Self {
        Self {
            replica_id: -1i32,
            replica_epoch: -1i64,
            unknown_tagged_fields: Default::default(),
        }
    }
}

impl Encode for ReplicaState {
    fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
        let flex = version >= 12;
        if version >= 15 { put_i32(buf, self.replica_id) }
        if version >= 15 { put_i64(buf, self.replica_epoch) }
        if flex {
            let tagged = WriteTaggedFields::new();
            tagged.write(buf, &self.unknown_tagged_fields);
        }
        Ok(())
    }
    fn encoded_len(&self, version: i16) -> usize {
        let flex = version >= 12;
        let mut n: usize = 0;
        if version >= 15 { n += 4; }
        if version >= 15 { n += 8; }
        if flex {
            let known_pairs: Vec<(u32, usize)> = Vec::new();
            n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
        }
        n
    }
}

impl<'de> Decode<'de> for ReplicaState {
    fn decode<B: Buf>(buf: &mut B, version: i16) -> Result<Self, ProtocolError> {
        let flex = version >= 12;
        let mut out = Self::default();
        if version >= 15 { out.replica_id = get_i32(buf)?; }
        if version >= 15 { out.replica_epoch = get_i64(buf)?; }
        if flex {
            out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| {
                Ok(false)
            })?;
        }
        Ok(out)
    }
}

#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct FetchTopic {
    pub topic: String,
    pub topic_id: crate::primitives::uuid::Uuid,
    pub partitions: Vec<FetchPartition>,
    pub unknown_tagged_fields: UnknownTaggedFields,
}

impl Encode for FetchTopic {
    fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
        let flex = version >= 12;
        if version >= 0 && version <= 12 { if flex { put_compact_string(buf, &self.topic) } else { put_string(buf, &self.topic) } }
        if version >= 13 { crate::primitives::uuid::put_uuid(buf, self.topic_id) }
        if version >= 0 { { crate::primitives::array::put_array_len(buf, (self.partitions).len(), flex); for it in &self.partitions { it.encode(buf, version)?; } } }
        if flex {
            let tagged = WriteTaggedFields::new();
            tagged.write(buf, &self.unknown_tagged_fields);
        }
        Ok(())
    }
    fn encoded_len(&self, version: i16) -> usize {
        let flex = version >= 12;
        let mut n: usize = 0;
        if version >= 0 && version <= 12 { n += if flex { compact_string_len(&self.topic) } else { string_len(&self.topic) }; }
        if version >= 13 { n += 16; }
        if version >= 0 { n += { let prefix = crate::primitives::array::array_len_prefix_len((self.partitions).len(), flex); let body: usize = (self.partitions).iter().map(|it| it.encoded_len(version)).sum(); prefix + body }; }
        if flex {
            let known_pairs: Vec<(u32, usize)> = Vec::new();
            n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
        }
        n
    }
}

impl<'de> Decode<'de> for FetchTopic {
    fn decode<B: Buf>(buf: &mut B, version: i16) -> Result<Self, ProtocolError> {
        let flex = version >= 12;
        let mut out = Self::default();
        if version >= 0 && version <= 12 { out.topic = if flex { get_compact_string_owned(buf)? } else { get_string_owned(buf)? }; }
        if version >= 13 { out.topic_id = crate::primitives::uuid::get_uuid(buf)?; }
        if version >= 0 { out.partitions = { let n = crate::primitives::array::get_array_len(buf, flex)?; let mut v = Vec::with_capacity(n); for _ in 0..n { v.push(FetchPartition::decode(buf, version)?); } v }; }
        if flex {
            out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| {
                Ok(false)
            })?;
        }
        Ok(out)
    }
}

#[derive(Debug, Clone, PartialEq, Eq)]
pub struct FetchPartition {
    pub partition: i32,
    pub current_leader_epoch: i32,
    pub fetch_offset: i64,
    pub last_fetched_epoch: i32,
    pub log_start_offset: i64,
    pub partition_max_bytes: i32,
    pub replica_directory_id: crate::primitives::uuid::Uuid,
    pub high_watermark: i64,
    pub unknown_tagged_fields: UnknownTaggedFields,
}

impl Default for FetchPartition {
    fn default() -> Self {
        Self {
            partition: 0i32,
            current_leader_epoch: -1i32,
            fetch_offset: 0i64,
            last_fetched_epoch: -1i32,
            log_start_offset: -1i64,
            partition_max_bytes: 0i32,
            replica_directory_id: Default::default(),
            high_watermark: 9_223_372_036_854_775_807i64,
            unknown_tagged_fields: Default::default(),
        }
    }
}

impl Encode for FetchPartition {
    fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
        let flex = version >= 12;
        if version >= 0 { put_i32(buf, self.partition) }
        if version >= 9 { put_i32(buf, self.current_leader_epoch) }
        if version >= 0 { put_i64(buf, self.fetch_offset) }
        if version >= 12 { put_i32(buf, self.last_fetched_epoch) }
        if version >= 5 { put_i64(buf, self.log_start_offset) }
        if version >= 0 { put_i32(buf, self.partition_max_bytes) }
        if flex {
            let mut tagged = WriteTaggedFields::new();
            if !(crate::codegen_helpers::is_default(&self.replica_directory_id)) {
                let payload = encode_to_bytes(16, |b| { crate::primitives::uuid::put_uuid(b, self.replica_directory_id); Ok(()) });
                tagged.add(0, payload);
            }
            if !(self.high_watermark == 9_223_372_036_854_775_807i64) {
                let payload = encode_to_bytes(8, |b| { put_i64(b, self.high_watermark); Ok(()) });
                tagged.add(1, payload);
            }
            tagged.write(buf, &self.unknown_tagged_fields);
        }
        Ok(())
    }
    fn encoded_len(&self, version: i16) -> usize {
        let flex = version >= 12;
        let mut n: usize = 0;
        if version >= 0 { n += 4; }
        if version >= 9 { n += 4; }
        if version >= 0 { n += 8; }
        if version >= 12 { n += 4; }
        if version >= 5 { n += 8; }
        if version >= 0 { n += 4; }
        if flex {
            let mut known_pairs: Vec<(u32, usize)> = Vec::new();
            if !(crate::codegen_helpers::is_default(&self.replica_directory_id)) {
                known_pairs.push((0, 16));
            }
            if !(self.high_watermark == 9_223_372_036_854_775_807i64) {
                known_pairs.push((1, 8));
            }
            n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
        }
        n
    }
}

impl<'de> Decode<'de> for FetchPartition {
    fn decode<B: Buf>(buf: &mut B, version: i16) -> Result<Self, ProtocolError> {
        let flex = version >= 12;
        let mut out = Self::default();
        if version >= 0 { out.partition = get_i32(buf)?; }
        if version >= 9 { out.current_leader_epoch = get_i32(buf)?; }
        if version >= 0 { out.fetch_offset = get_i64(buf)?; }
        if version >= 12 { out.last_fetched_epoch = get_i32(buf)?; }
        if version >= 5 { out.log_start_offset = get_i64(buf)?; }
        if version >= 0 { out.partition_max_bytes = get_i32(buf)?; }
        if flex {
            // Pre-declare typed slots for known tagged fields.
            let mut tag_replica_directory_id = None;
            let mut tag_high_watermark = None;
            out.unknown_tagged_fields = read_tagged_fields(buf, |tag, payload| {
                match tag {
                0 => { tag_replica_directory_id = Some({ let b: &mut &[u8] = payload; crate::primitives::uuid::get_uuid(b)? }); Ok(true) }
                1 => { tag_high_watermark = Some({ let b: &mut &[u8] = payload; get_i64(b)? }); Ok(true) }
                    _ => Ok(false),
                }
            })?;
            if let Some(v) = tag_replica_directory_id { out.replica_directory_id = v; }
            if let Some(v) = tag_high_watermark { out.high_watermark = v; }
        }
        Ok(out)
    }
}

#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct ForgottenTopic {
    pub topic: String,
    pub topic_id: crate::primitives::uuid::Uuid,
    pub partitions: Vec<i32>,
    pub unknown_tagged_fields: UnknownTaggedFields,
}

impl Encode for ForgottenTopic {
    fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
        let flex = version >= 12;
        if version >= 7 && version <= 12 { if flex { put_compact_string(buf, &self.topic) } else { put_string(buf, &self.topic) } }
        if version >= 13 { crate::primitives::uuid::put_uuid(buf, self.topic_id) }
        if version >= 7 { { crate::primitives::array::put_array_len(buf, (self.partitions).len(), flex); for it in &self.partitions { put_i32(buf, *it); } } }
        if flex {
            let tagged = WriteTaggedFields::new();
            tagged.write(buf, &self.unknown_tagged_fields);
        }
        Ok(())
    }
    fn encoded_len(&self, version: i16) -> usize {
        let flex = version >= 12;
        let mut n: usize = 0;
        if version >= 7 && version <= 12 { n += if flex { compact_string_len(&self.topic) } else { string_len(&self.topic) }; }
        if version >= 13 { n += 16; }
        if version >= 7 { n += { let prefix = crate::primitives::array::array_len_prefix_len((self.partitions).len(), flex); let body: usize = (self.partitions).iter().map(|_| 4).sum(); prefix + body }; }
        if flex {
            let known_pairs: Vec<(u32, usize)> = Vec::new();
            n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
        }
        n
    }
}

impl<'de> Decode<'de> for ForgottenTopic {
    fn decode<B: Buf>(buf: &mut B, version: i16) -> Result<Self, ProtocolError> {
        let flex = version >= 12;
        let mut out = Self::default();
        if version >= 7 && version <= 12 { out.topic = if flex { get_compact_string_owned(buf)? } else { get_string_owned(buf)? }; }
        if version >= 13 { out.topic_id = crate::primitives::uuid::get_uuid(buf)?; }
        if version >= 7 { out.partitions = { let n = crate::primitives::array::get_array_len(buf, flex)?; let mut v = Vec::with_capacity(n); for _ in 0..n { v.push(get_i32(buf)?); } v }; }
        if flex {
            out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| {
                Ok(false)
            })?;
        }
        Ok(out)
    }
}

/// Default JSON payload matching `Self::default()` for JVM oracle differential testing.
/// Only includes fields valid for the given version.
#[must_use]
#[allow(unused_comparisons)]
pub fn default_json(version: i16) -> ::serde_json::Value {
    let mut obj = ::serde_json::Map::new();
    if version >= 12 {
        obj.insert("clusterId".to_string(), ::serde_json::Value::Null);
    }
    if version <= 14 {
        obj.insert("replicaId".to_string(), ::serde_json::json!(-1));
    }
    if version >= 15 {
        obj.insert("replicaState".to_string(), { let mut m = ::serde_json::Map::new(); m.insert("replicaId".to_string(), ::serde_json::json!(-1)); m.insert("replicaEpoch".to_string(), ::serde_json::json!(-1)); ::serde_json::Value::Object(m) });
    }
    obj.insert("maxWaitMs".to_string(), ::serde_json::json!(0));
    obj.insert("minBytes".to_string(), ::serde_json::json!(0));
    if version >= 3 {
        obj.insert("maxBytes".to_string(), ::serde_json::json!(2147483647));
    }
    if version >= 4 {
        obj.insert("isolationLevel".to_string(), ::serde_json::json!(0));
    }
    if version >= 7 {
        obj.insert("sessionId".to_string(), ::serde_json::json!(0));
    }
    if version >= 7 {
        obj.insert("sessionEpoch".to_string(), ::serde_json::json!(-1));
    }
    obj.insert("topics".to_string(), ::serde_json::Value::Array(vec![]));
    if version >= 7 {
        obj.insert("forgottenTopicsData".to_string(), ::serde_json::Value::Array(vec![]));
    }
    if version >= 11 {
        obj.insert("rackId".to_string(), ::serde_json::Value::String("".to_string()));
    }
    ::serde_json::Value::Object(obj)
}

impl crate::ProtocolRequest for FetchRequest {
    const API_KEY: i16 = API_KEY;
    const MIN_VERSION: i16 = MIN_VERSION;
    const MAX_VERSION: i16 = MAX_VERSION;
    const FLEXIBLE_MIN: i16 = FLEXIBLE_MIN;
    type Response = super::fetch_response::FetchResponse;
}