//! Implements the downloader algorithms.
//!
//! ## Feature Flags
//!
//! - `test-utils`: Export utilities for testing
//! - `file-client`: Enables the file-based clients for reading blocks and receipts from files.

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#![cfg_attr(not(test), warn(unused_crate_dependencies))]
#![cfg_attr(docsrs, feature(doc_cfg))]

#[cfg(any(test, feature = "test-utils"))]
use tempfile as _;

/// The collection of algorithms for downloading block bodies.
pub mod bodies;

/// The collection of algorithms for downloading block headers.
pub mod headers;

/// Common downloader metrics.
pub mod metrics;

/// Module managing file-based data retrieval and buffering.
///
/// Contains [`FileClient`](file_client::FileClient) to read block data from files,
/// efficiently buffering headers and bodies for retrieval.
#[cfg(any(test, feature = "file-client"))]
pub mod file_client;

/// Module managing file-based data retrieval and buffering of receipts.
///
/// Contains [`ReceiptFileClient`](receipt_file_client::ReceiptFileClient) to read receipt data from
/// files, efficiently buffering receipts for retrieval.
#[cfg(any(test, feature = "file-client"))]
pub mod receipt_file_client;

/// Module with a codec for reading and encoding block bodies in files.
///
/// Enables decoding and encoding `Block` types within file contexts.
#[cfg(any(test, feature = "file-client"))]
pub mod file_codec;

#[cfg(any(test, feature = "test-utils"))]
pub mod test_utils;

#[cfg(any(test, feature = "file-client"))]
pub use file_client::{DecodedFileChunk, FileClientError};
