crabka-protocol 0.3.1

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

use bytes::{Buf, BufMut};

use crate::primitives::fixed::{get_bool, put_bool};
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::{WriteTaggedFields, read_tagged_fields, tagged_fields_len};
use crate::{Decode, Encode, ProtocolError, UnknownTaggedFields};

pub const API_KEY: i16 = 3;
pub const MIN_VERSION: i16 = 0;
pub const MAX_VERSION: i16 = 13;
pub const FLEXIBLE_MIN: i16 = 9;

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

#[derive(Debug, Clone, PartialEq, Eq)]
pub struct MetadataRequest {
    pub topics: Option<Vec<MetadataRequestTopic>>,
    pub allow_auto_topic_creation: bool,
    pub include_cluster_authorized_operations: bool,
    pub include_topic_authorized_operations: bool,
    pub unknown_tagged_fields: UnknownTaggedFields,
}
impl Default for MetadataRequest {
    fn default() -> Self {
        Self {
            topics: None,
            allow_auto_topic_creation: true,
            include_cluster_authorized_operations: false,
            include_topic_authorized_operations: false,
            unknown_tagged_fields: Default::default(),
        }
    }
}
impl Encode for MetadataRequest {
    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 {
            if version >= 1 {
                {
                    let len = (self.topics).as_ref().map(Vec::len);
                    crate::primitives::array::put_nullable_array_len(buf, len, flex);
                    if let Some(v) = &self.topics {
                        for it in v {
                            it.encode(buf, version)?;
                        }
                    }
                }
            } else {
                {
                    let v = (self.topics).as_deref().unwrap_or(&[]);
                    crate::primitives::array::put_array_len(buf, v.len(), flex);
                    for it in v {
                        it.encode(buf, version)?;
                    }
                }
            }
        }
        if version >= 4 {
            put_bool(buf, self.allow_auto_topic_creation);
        }
        if (8..=10).contains(&version) {
            put_bool(buf, self.include_cluster_authorized_operations);
        }
        if version >= 8 {
            put_bool(buf, self.include_topic_authorized_operations);
        }
        if flex {
            let tagged = WriteTaggedFields::new();
            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 += if version >= 1 {
                {
                    let opt: Option<&Vec<_>> = (self.topics).as_ref();
                    let prefix = crate::primitives::array::nullable_array_len_prefix_len(
                        opt.map(std::vec::Vec::len),
                        flex,
                    );
                    let body: usize =
                        opt.map_or(0, |v| v.iter().map(|it| it.encoded_len(version)).sum());
                    prefix + body
                }
            } else {
                {
                    let v = (self.topics).as_deref().unwrap_or(&[]);
                    let prefix = crate::primitives::array::array_len_prefix_len(v.len(), flex);
                    let body: usize = v.iter().map(|it| it.encoded_len(version)).sum();
                    prefix + body
                }
            };
        }
        if version >= 4 {
            n += 1;
        }
        if (8..=10).contains(&version) {
            n += 1;
        }
        if version >= 8 {
            n += 1;
        }
        if flex {
            let known_pairs: Vec<(u32, usize)> = Vec::new();
            n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
        }
        n
    }
}
impl Decode<'_> for MetadataRequest {
    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 {
            out.topics = if version >= 1 {
                {
                    let opt = crate::primitives::array::get_nullable_array_len(buf, flex)?;
                    match opt {
                        None => None,
                        Some(n) => {
                            let mut v = Vec::with_capacity(n);
                            for _ in 0..n {
                                v.push(MetadataRequestTopic::decode(buf, version)?);
                            }
                            Some(v)
                        }
                    }
                }
            } else {
                Some({
                    let n = crate::primitives::array::get_array_len(buf, flex)?;
                    let mut v = Vec::with_capacity(n);
                    for _ in 0..n {
                        v.push(MetadataRequestTopic::decode(buf, version)?);
                    }
                    v
                })
            };
        }
        if version >= 4 {
            out.allow_auto_topic_creation = get_bool(buf)?;
        }
        if (8..=10).contains(&version) {
            out.include_cluster_authorized_operations = get_bool(buf)?;
        }
        if version >= 8 {
            out.include_topic_authorized_operations = get_bool(buf)?;
        }
        if flex {
            out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| Ok(false))?;
        }
        Ok(out)
    }
}
#[cfg(test)]
impl MetadataRequest {
    #[must_use]
    pub fn populated(version: i16) -> Self {
        let mut m = Self::default();
        if version >= 0 {
            m.topics = Some(vec![MetadataRequestTopic::populated(version)]);
        }
        if version >= 4 {
            m.allow_auto_topic_creation = true;
        }
        if (8..=10).contains(&version) {
            m.include_cluster_authorized_operations = true;
        }
        if version >= 8 {
            m.include_topic_authorized_operations = true;
        }
        m
    }
}
#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct MetadataRequestTopic {
    pub topic_id: crate::primitives::uuid::Uuid,
    pub name: Option<String>,
    pub unknown_tagged_fields: UnknownTaggedFields,
}
impl Encode for MetadataRequestTopic {
    fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
        let flex = version >= 9;
        if version >= 10 {
            crate::primitives::uuid::put_uuid(buf, self.topic_id);
        }
        if version >= 0 {
            if version >= 10 {
                if flex {
                    put_compact_nullable_string(buf, self.name.as_deref());
                } else {
                    put_nullable_string(buf, self.name.as_deref());
                }
            } else {
                if flex {
                    put_compact_string(buf, (self.name).as_deref().unwrap_or(""));
                } else {
                    put_string(buf, (self.name).as_deref().unwrap_or(""));
                }
            }
        }
        if flex {
            let tagged = WriteTaggedFields::new();
            tagged.write(buf, &self.unknown_tagged_fields);
        }
        Ok(())
    }
    fn encoded_len(&self, version: i16) -> usize {
        let flex = version >= 9;
        let mut n: usize = 0;
        if version >= 10 {
            n += 16;
        }
        if version >= 0 {
            n += if version >= 10 {
                if flex {
                    compact_nullable_string_len(self.name.as_deref())
                } else {
                    nullable_string_len(self.name.as_deref())
                }
            } else {
                if flex {
                    compact_string_len((self.name).as_deref().unwrap_or(""))
                } else {
                    string_len((self.name).as_deref().unwrap_or(""))
                }
            };
        }
        if flex {
            let known_pairs: Vec<(u32, usize)> = Vec::new();
            n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
        }
        n
    }
}
impl Decode<'_> for MetadataRequestTopic {
    fn decode<B: Buf>(buf: &mut B, version: i16) -> Result<Self, ProtocolError> {
        let flex = version >= 9;
        let mut out = Self::default();
        if version >= 10 {
            out.topic_id = crate::primitives::uuid::get_uuid(buf)?;
        }
        if version >= 0 {
            out.name = if version >= 10 {
                if flex {
                    get_compact_nullable_string_owned(buf)?
                } else {
                    get_nullable_string_owned(buf)?
                }
            } else {
                Some(if flex {
                    get_compact_string_owned(buf)?
                } else {
                    get_string_owned(buf)?
                })
            };
        }
        if flex {
            out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| Ok(false))?;
        }
        Ok(out)
    }
}
#[cfg(test)]
impl MetadataRequestTopic {
    #[must_use]
    pub fn populated(version: i16) -> Self {
        let mut m = Self::default();
        if version >= 10 {
            m.topic_id = crate::primitives::uuid::Uuid([1u8; 16]);
        }
        if version >= 0 {
            m.name = Some("x".to_string());
        }
        m
    }
}

/// 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();
    obj.insert(
        "topics".to_string(),
        if version >= 1 {
            ::serde_json::Value::Null
        } else {
            ::serde_json::Value::Array(vec![])
        },
    );
    if version >= 4 {
        obj.insert(
            "allowAutoTopicCreation".to_string(),
            ::serde_json::Value::Bool(true),
        );
    }
    if (8..=10).contains(&version) {
        obj.insert(
            "includeClusterAuthorizedOperations".to_string(),
            ::serde_json::Value::Bool(false),
        );
    }
    if version >= 8 {
        obj.insert(
            "includeTopicAuthorizedOperations".to_string(),
            ::serde_json::Value::Bool(false),
        );
    }
    ::serde_json::Value::Object(obj)
}

impl crate::ProtocolRequest for MetadataRequest {
    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::metadata_response::MetadataResponse;
}