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use crate::{block, prelude::*};

#[doc = include_str!("../doc/request-loadsnapshotchunk.md")]
#[derive(Clone, PartialEq, Eq, Debug)]
pub struct LoadSnapshotChunk {
    /// The height of the snapshot the chunks belong to.
    pub height: block::Height,
    /// An application-specific identifier of the format of the snapshot chunk.
    pub format: u32,
    /// The chunk index, starting from `0` for the initial chunk.
    pub chunk: u32,
}

// =============================================================================
// Protobuf conversions
// =============================================================================

tendermint_pb_modules! {
    use super::LoadSnapshotChunk;

    impl From<LoadSnapshotChunk> for pb::abci::RequestLoadSnapshotChunk {
        fn from(load_snapshot_chunk: LoadSnapshotChunk) -> Self {
            Self {
                height: load_snapshot_chunk.height.into(),
                format: load_snapshot_chunk.format,
                chunk: load_snapshot_chunk.chunk,
            }
        }
    }

    impl TryFrom<pb::abci::RequestLoadSnapshotChunk> for LoadSnapshotChunk {
        type Error = crate::Error;

        fn try_from(load_snapshot_chunk: pb::abci::RequestLoadSnapshotChunk) -> Result<Self, Self::Error> {
            Ok(Self {
                height: load_snapshot_chunk.height.try_into()?,
                format: load_snapshot_chunk.format,
                chunk: load_snapshot_chunk.chunk,
            })
        }
    }

    impl Protobuf<pb::abci::RequestLoadSnapshotChunk> for LoadSnapshotChunk {}
}