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use crate::chunkid::ChunkId;
use serde::{Deserialize, Serialize};
use std::default::Default;
/// Store an arbitrary chunk of data.
///
/// The data is just arbitrary binary data.
///
/// A chunk also contains its associated metadata, except its
/// identifier.
#[derive(Debug, Serialize, Deserialize)]
pub struct DataChunk {
data: Vec<u8>,
}
impl DataChunk {
/// Construct a new chunk.
pub fn new(data: Vec<u8>) -> Self {
Self { data }
}
/// Return a chunk's data.
pub fn data(&self) -> &[u8] {
&self.data
}
}
#[derive(Default, Debug, Serialize, Deserialize)]
pub struct GenerationChunk {
chunk_ids: Vec<ChunkId>,
}
impl GenerationChunk {
pub fn new(chunk_ids: Vec<ChunkId>) -> Self {
Self { chunk_ids }
}
pub fn is_empty(&self) -> bool {
self.chunk_ids.is_empty()
}
pub fn len(&self) -> usize {
self.chunk_ids.len()
}
pub fn chunk_ids(&self) -> impl Iterator<Item = &ChunkId> {
self.chunk_ids.iter()
}
pub fn to_data_chunk(&self) -> anyhow::Result<DataChunk> {
let json = serde_json::to_string(self)?;
Ok(DataChunk::new(json.as_bytes().to_vec()))
}
}
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