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use super::{MessageHeader, MessageKind};
use crate::codec::arrow::encode_arrow;
use crate::encoder::EncodeError;
use crate::Compression;
use re_log_types::LogMsg;

pub(crate) fn encode(
    buf: &mut Vec<u8>,
    message: &LogMsg,
    compression: Compression,
) -> Result<(), EncodeError> {
    use re_protos::external::prost::Message;
    use re_protos::log_msg::v0::{
        self as proto, ArrowMsg, BlueprintActivationCommand, Encoding, SetStoreInfo,
    };

    match message {
        LogMsg::SetStoreInfo(set_store_info) => {
            let set_store_info: SetStoreInfo = set_store_info.clone().into();
            let header = MessageHeader {
                kind: MessageKind::SetStoreInfo,
                len: set_store_info.encoded_len() as u64,
            };
            header.encode(buf)?;
            set_store_info.encode(buf)?;
        }
        LogMsg::ArrowMsg(store_id, arrow_msg) => {
            let payload = encode_arrow(&arrow_msg.schema, &arrow_msg.chunk, compression)?;
            let arrow_msg = ArrowMsg {
                store_id: Some(store_id.clone().into()),
                compression: match compression {
                    Compression::Off => proto::Compression::None as i32,
                    Compression::LZ4 => proto::Compression::Lz4 as i32,
                },
                uncompressed_size: payload.uncompressed_size as i32,
                encoding: Encoding::ArrowIpc as i32,
                payload: payload.data,
            };
            let header = MessageHeader {
                kind: MessageKind::ArrowMsg,
                len: arrow_msg.encoded_len() as u64,
            };
            header.encode(buf)?;
            arrow_msg.encode(buf)?;
        }
        LogMsg::BlueprintActivationCommand(blueprint_activation_command) => {
            let blueprint_activation_command: BlueprintActivationCommand =
                blueprint_activation_command.clone().into();
            let header = MessageHeader {
                kind: MessageKind::BlueprintActivationCommand,
                len: blueprint_activation_command.encoded_len() as u64,
            };
            header.encode(buf)?;
            blueprint_activation_command.encode(buf)?;
        }
    }

    Ok(())
}