BFT-CRDT sending of transactions works on a timer.

side-node/src/websocket/mod.rs

@@ -1,5 +1,3 @@
-use std::io::{self, BufRead};
-
 use bft_crdt_derive::add_crdt_fields;
 use bft_json_crdt::json_crdt::SignedOp;
 use bft_json_crdt::keypair::{Ed25519KeyPair, KeyPair};
@@ -7,10 +5,11 @@ use bft_json_crdt::{
     json_crdt::{BaseCrdt, CrdtNode, IntoCrdtNode},
     keypair::make_keypair,
     list_crdt::ListCrdt,
-    op::ROOT_ID,
+    // op::ROOT_ID,
 };
 use serde::{Deserialize, Serialize};
 use serde_json::{json, Value};
+use tokio::time;
 // use tokio::time::{self};
 use websockets::WebSocket;
 
@@ -24,16 +23,10 @@ pub(crate) async fn start() -> Result<(), websockets::WebSocketError> {
     let mut bft_crdt = BaseCrdt::<ListExample>::new(&keys);
     println!("Generated a new CRDT with public key: {}", keys.public());
 
-    // let mut interval = every_two_seconds();
+    let mut interval = every_two_seconds();
+    let mut count = 0;
     loop {
-        let stdin = io::stdin();
-        let mut handle = stdin.lock();
-
-        let mut line = String::new();
-        handle.read_line(&mut line).unwrap();
-
-        println!("You entered: {}", line);
-        let _ = send_a_transaction(line, &mut bft_crdt, &mut ws, &keys).await;
+        let _ = send_a_transaction(count, &mut bft_crdt, &mut ws, &keys).await;
 
         let msg = ws.receive().await?;
         println!("Received: {:?}", msg);
@@ -42,17 +35,20 @@ pub(crate) async fn start() -> Result<(), websockets::WebSocketError> {
         let msg = msg.into_text().unwrap().0;
 
         // deserialize the message into a Transaction struct
-        let operation: SignedOp = serde_json::from_str(&msg).unwrap();
+        let incoming_operation: SignedOp = serde_json::from_str(&msg).unwrap();
+        println!("Received a new network operation: {:?}", incoming_operation);
 
-        bft_crdt.apply(operation);
+        bft_crdt.apply(incoming_operation);
 
-        println!("New crdt state is: {}", bft_crdt.doc.view())
+        println!("New crdt state is: {}", bft_crdt.doc.view());
+        count = count + 1;
+        interval.tick().await;
     }
 }
 
-// fn every_two_seconds() -> time::Interval {
-//     time::interval(time::Duration::from_secs(2))
-// }
+fn every_two_seconds() -> time::Interval {
+    time::interval(time::Duration::from_secs(2))
+}
 
 #[add_crdt_fields]
 #[derive(Clone, CrdtNode, Serialize, Deserialize)]
@@ -69,28 +65,28 @@ struct Transaction {
     amount: f64,
 }
 
-fn generate_transaction(from: String) -> Value {
+fn generate_transaction(count: u32) -> Value {
     json!({
-        "from": from,
+        "from": "Alice",
         "to": "Bob",
-        "amount": 100.0
+        "amount": count
     })
 }
 
 async fn send_a_transaction(
-    input: String,
+    count: u32,
     bft_crdt: &mut BaseCrdt<ListExample>,
     ws: &mut WebSocket,
     keys: &Ed25519KeyPair,
 ) -> Result<(), websockets::WebSocketError> {
     // generate a placeholder transaction
-    let transaction = generate_transaction(input);
+    let transaction = generate_transaction(count);
 
     // next job is to keep adding to this guy
     let signed_op = bft_crdt
         .doc
         .list
-        .insert(ROOT_ID, transaction.clone())
+        .insert_idx(0, transaction.clone())
         .sign(&keys);
     println!("SignedOp being sent is: {:?}", signed_op);