persist payments info to disk

[ldk-sample] / src / disk.rs

diff --git a/src/disk.rs b/src/disk.rs
index 0c3085134bedcd8cf35ca57330a776ad196223a9..77cefd6d59a91bc25f26c855d9119235c62df78c 100644 (file)
--- a/src/disk.rs
+++ b/src/disk.rs
@@ -1,10 +1,10 @@
-use crate::{cli, NetworkGraph};
+use crate::{cli, NetworkGraph, PaymentInfoStorage};
 use bitcoin::secp256k1::PublicKey;
 use bitcoin::Network;
 use chrono::Utc;
 use lightning::routing::scoring::{ProbabilisticScorer, ProbabilisticScoringParameters};
 use lightning::util::logger::{Logger, Record};
-use lightning::util::ser::{ReadableArgs, Writer};
+use lightning::util::ser::{Readable, ReadableArgs, Writer};
 use std::collections::HashMap;
 use std::fs;
 use std::fs::File;
@@ -13,6 +13,9 @@ use std::net::SocketAddr;
 use std::path::Path;
 use std::sync::Arc;
 
+pub(crate) const INBOUND_PAYMENTS_FNAME: &str = "inbound_payments";
+pub(crate) const OUTBOUND_PAYMENTS_FNAME: &str = "outbound_payments";
+
 pub(crate) struct FilesystemLogger {
        data_dir: String,
 }
@@ -83,6 +86,15 @@ pub(crate) fn read_network(
        NetworkGraph::new(network, logger)
 }
 
+pub(crate) fn read_payment_info(path: &Path) -> PaymentInfoStorage {
+       if let Ok(file) = File::open(path) {
+               if let Ok(info) = PaymentInfoStorage::read(&mut BufReader::new(file)) {
+                       return info;
+               }
+       }
+       PaymentInfoStorage { payments: HashMap::new() }
+}
+
 pub(crate) fn read_scorer(
        path: &Path, graph: Arc<NetworkGraph>, logger: Arc<FilesystemLogger>,
 ) -> ProbabilisticScorer<Arc<NetworkGraph>, Arc<FilesystemLogger>> {