use crate::records::memory::response_channels::Command;
use crate::sled::Db;
use crate::Arc;
use crate::Mutex;
use crate::TcpStream;

// parameters used while searching backward for a shared
// ancestor and deciding whether to replace the local tip
pub struct OrphanCheckup {
    pub start_check: u32,
    pub stop_check: u32,
    pub original_start_check: u32,
    pub local_height: u32,
    pub remote_height: u32,
    pub recheck_from_height: Option<u32>,
    pub stream: Arc<Mutex<TcpStream>>,
    pub db: Db,
    pub map: Arc<Mutex<Command>>,
    pub node_syncing: bool,
    pub connections_key: String,
}

// top-level orphan check context used by sync and broadcast
// flows before the deeper rollback logic is chosen
pub struct OrphanCheckup2 {
    pub stream: Arc<Mutex<TcpStream>>,
    pub db: Db,
    pub local_height: u32,
    pub remote_height: u32,
    pub recheck_from_height: Option<u32>,
    pub map: Arc<Mutex<Command>>,
    pub node_syncing: bool,
    pub connections_key: String,
}

// shared rollback context used by undo/save paths once a
// reorganization decision has already been made
pub struct UndoTransactions {
    pub start_height: u32,
    pub replay_to_height: u32,
    pub db: Db,
    pub stream: Arc<Mutex<TcpStream>>,
    pub map: Arc<Mutex<Command>>,
    pub node_syncing: bool,
    pub connections_key: String,
}

#[derive(Clone)]
// lightweight cloneable context passed into the rule checks
// before it is expanded into rollback-specific parameters
pub struct CheckUp {
    pub local_height: u32,
    pub remote_height: u32,
    pub recheck_from_height: Option<u32>,
    pub db: Db,
    pub stream: Arc<Mutex<TcpStream>>,
    pub map: Arc<Mutex<Command>>,
    pub node_syncing: bool,
    pub connections_key: String,
}