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//!
//! BIP157  Client Side Block Filtering network messages
//!
use bitcoin_hashes::sha256d;

#[derive(PartialEq, Eq, Clone, Debug)]
/// getcfilters message
pub struct GetCFilters {
    /// Filter type for which headers are requested
    pub filter_type: u8,
    /// The height of the first block in the requested range
    pub start_height: u32,
    /// The hash of the last block in the requested range
    pub stop_hash: sha256d::Hash,
}
impl_consensus_encoding!(GetCFilters, filter_type, start_height, stop_hash);

#[derive(PartialEq, Eq, Clone, Debug)]
/// cfilter message
pub struct CFilter {
    /// Byte identifying the type of filter being returned
    pub filter_type: u8,
    /// Block hash of the Bitcoin block for which the filter is being returned
    pub block_hash: sha256d::Hash,
    /// The serialized compact filter for this block
    pub filter: Vec<u8>,
}
impl_consensus_encoding!(CFilter, filter_type, block_hash, filter);

#[derive(PartialEq, Eq, Clone, Debug)]
/// getcfheaders message
pub struct GetCFHeaders {
    /// Byte identifying the type of filter being returned
    pub filter_type: u8,
    /// The height of the first block in the requested range
    pub start_height: u32,
    /// The hash of the last block in the requested range
    pub stop_hash: sha256d::Hash,
}
impl_consensus_encoding!(GetCFHeaders, filter_type, start_height, stop_hash);

#[derive(PartialEq, Eq, Clone, Debug)]
/// cfheaders message
pub struct CFHeaders {
    /// Filter type for which headers are requested
    pub filter_type: u8,
    /// The hash of the last block in the requested range
    pub stop_hash: sha256d::Hash,
    /// The filter header preceding the first block in the requested range
    pub previous_filter: sha256d::Hash,
    /// The filter hashes for each block in the requested range
    pub filter_hashes: Vec<sha256d::Hash>,
}
impl_consensus_encoding!(
    CFHeaders,
    filter_type,
    stop_hash,
    previous_filter,
    filter_hashes
);

#[derive(PartialEq, Eq, Clone, Debug)]
/// getcfcheckpt message
pub struct GetCFCheckpt {
    /// Filter type for which headers are requested
    pub filter_type: u8,
    /// The hash of the last block in the requested range
    pub stop_hash: sha256d::Hash,
}
impl_consensus_encoding!(GetCFCheckpt, filter_type, stop_hash);

#[derive(PartialEq, Eq, Clone, Debug)]
/// cfcheckpt message
pub struct CFCheckpt {
    /// Filter type for which headers are requested
    pub filter_type: u8,
    /// The hash of the last block in the requested range
    pub stop_hash: sha256d::Hash,
    /// The filter headers at intervals of 1,000
    pub filter_headers: Vec<sha256d::Hash>,
}
impl_consensus_encoding!(CFCheckpt, filter_type, stop_hash, filter_headers);