add api endpoints, onchain confirmation handling, db handlers

taptrade-cli-demo/coordinator/src/communication/mod.rs

@@ -190,27 +190,55 @@ async fn submit_escrow_psbt(
 
 /// Will get polled by the traders once they submitted their PSBT part. The coorinator will return status code 200 once he received both PSBTs and they got mined,
 /// then the traders will know it is secure to begin with the fiat exchange and can continue with the trade (exchange information in the chat and transfer fiat).
-/// We can implement this once the PSBT is done.
 /// In theory this polling mechanism could also be replaced by the traders scanning the blockchain themself so they could also see once the tx is confirmed.
-/// We have to see what makes more sense later, but maybe this would be more elegant. TBD.
 async fn poll_escrow_confirmation(
 	Extension(database): Extension<Arc<CoordinatorDB>>,
-	Extension(wallet): Extension<Arc<CoordinatorWallet<sled::Tree>>>,
 	Json(payload): Json<OfferTakenRequest>,
 ) -> Result<Response, AppError> {
-	panic!("implement")
-	// let escrow_tx_txid = database.fetch_escrow_txid(&payload.order_id_hex).await?;
-	// if wallet.is_tx_confirmed(&escrow_tx_txid).await {
-	// 	Ok(StatusCode::OK.into_response())
-	// } else {
-	// 	Ok(StatusCode::ACCEPTED.into_response())
-	// } else if not found in database or not published (invalid request) return 404
+	if !database
+		.is_valid_robohash_in_table(&payload.robohash_hex, &payload.order_id_hex)
+		.await?
+	{
+		return Ok(StatusCode::NOT_FOUND.into_response());
+	}
+	if database
+		.fetch_escrow_tx_confirmation_status(&payload.order_id_hex)
+		.await?
+	{
+		return Ok(StatusCode::OK.into_response());
+	} else {
+		return Ok(StatusCode::ACCEPTED.into_response());
+	}
 }
 
 async fn submit_obligation_confirmation(
 	Extension(database): Extension<Arc<CoordinatorDB>>,
 	Extension(wallet): Extension<Arc<CoordinatorWallet<sled::Tree>>>,
 	Json(payload): Json<OfferTakenRequest>,
+) -> Result<Response, AppError> {
+	// sanity check if offer is in table and if the escrow tx is confirmed
+	if !database
+		.is_valid_robohash_in_table(&payload.robohash_hex, &payload.order_id_hex)
+		.await? || !database
+		.fetch_escrow_tx_confirmation_status(&payload.order_id_hex)
+		.await?
+	{
+		return Ok(StatusCode::NOT_FOUND.into_response());
+	}
+	database
+		.set_trader_happy_true(&payload.order_id_hex, &payload.robohash_hex)
+		.await?;
+	Ok(StatusCode::OK.into_response())
+}
+
+// or
+
+// gets called if one of the traders wants to initiate escrow (e.g. claiming they didn't receive the fiat)
+// before timeout ends
+async fn request_escrow(
+	Extension(database): Extension<Arc<CoordinatorDB>>,
+	Extension(wallet): Extension<Arc<CoordinatorWallet<sled::Tree>>>,
+	Json(payload): Json<String>,
 ) -> Result<Response, AppError> {
 	panic!("implement")
 }
@@ -248,6 +276,7 @@ pub async fn api_server(coordinator: Arc<Coordinator>) -> Result<()> {
 			"/submit-obligation-confirmation",
 			post(submit_obligation_confirmation),
 		)
+		.route("/request-escrow", post(request_escrow))
 		.route("/poll-final-payout", post(poll_final_payout))
 		.layer(Extension(database))
 		.layer(Extension(wallet));

taptrade-cli-demo/coordinator/src/database/mod.rs

@@ -123,7 +123,9 @@ impl CoordinatorDB {
 				escrow_psbt_hex_maker TEXT,
 				escrow_psbt_hex_taker TEXT,
 				escrow_psbt_txid TEXT,
-				escrow_psbt_is_confirmed INTEGER
+				escrow_psbt_is_confirmed INTEGER,
+				maker_happy INTEGER,
+				taker_happy INTEGER
 			)", // escrow_psbt_is_confirmed will be set 1 once the escrow psbt is confirmed onchain
 		)
 		.execute(&db_pool)
@@ -539,4 +541,72 @@ impl CoordinatorDB {
 		}
 		Ok(())
 	}
+
+	pub async fn get_txid_confirmation_status(&self, txid: &String) -> Result<bool> {
+		let status = sqlx::query(
+			"SELECT escrow_psbt_is_confirmed FROM taken_offers WHERE escrow_psbt_txid = ?",
+		)
+		.bind(txid)
+		.fetch_one(&*self.db_pool)
+		.await?;
+		Ok(status.get::<i64, _>("escrow_psbt_is_confirmed") == 1)
+	}
+
+	pub async fn is_valid_robohash_in_table(
+		&self,
+		robohash_hex: &String,
+		offer_id: &String,
+	) -> Result<bool> {
+		let robohash = hex::decode(robohash_hex)?;
+		let robohash = sqlx::query(
+			"SELECT 1 FROM taken_offers WHERE (robohash_maker = ? OR robohash_taker = ?) AND offer_id = ?",
+		)
+		.bind(&robohash)
+		.bind(&robohash)
+		.bind(offer_id)
+		.fetch_optional(&*self.db_pool)
+		.await?;
+		Ok(robohash.is_some())
+	}
+
+	pub async fn fetch_escrow_tx_confirmation_status(&self, offer_id: &String) -> Result<bool> {
+		let status =
+			sqlx::query("SELECT escrow_psbt_is_confirmed FROM taken_offers WHERE offer_id = ?")
+				.bind(offer_id)
+				.fetch_one(&*self.db_pool)
+				.await?;
+		Ok(status.get::<i64, _>("escrow_psbt_is_confirmed") == 1)
+	}
+
+	pub async fn set_trader_happy_true(&self, offer_id: &String, robohash: &String) -> Result<()> {
+		let robohash_bytes = hex::decode(robohash)?;
+
+		// First, check if the robohash matches the maker or taker
+		let row = sqlx::query(
+			"SELECT robohash_maker, robohash_taker FROM taken_offers WHERE offer_id = ?",
+		)
+		.bind(offer_id)
+		.fetch_one(&*self.db_pool)
+		.await?;
+
+		let is_maker = row.get::<Vec<u8>, _>("robohash_maker") == robohash_bytes;
+		let is_taker = row.get::<Vec<u8>, _>("robohash_taker") == robohash_bytes;
+
+		if !is_maker && !is_taker {
+			return Err(anyhow::anyhow!("Robohash does not match maker or taker"));
+		}
+
+		let query = if is_maker {
+			"UPDATE taken_offers SET maker_happy = 1 WHERE offer_id = ?"
+		} else {
+			"UPDATE taken_offers SET taker_happy = 1 WHERE offer_id = ?"
+		};
+
+		sqlx::query(query)
+			.bind(offer_id)
+			.execute(&*self.db_pool)
+			.await?;
+
+		Ok(())
+	}
 }

taptrade-cli-demo/rpc_node/regtest/data/mine-blocks.sh

@@ -13,11 +13,10 @@ if echo "$WALLETS" | grep -q "coordinator_wallet"; then
 else
     echo "Wallet does not exist. Creating wallet..."
     bitcoin-cli -regtest -datadir="/home/bitcoin/.bitcoin" createwallet "coordinator_wallet"
+    # Generate initial blocks
+    bitcoin-cli -regtest -datadir="/home/bitcoin/.bitcoin" -rpcwallet="coordinator_wallet" -generate 101
 fi
 
-# Generate initial blocks
-bitcoin-cli -regtest -datadir="/home/bitcoin/.bitcoin" -rpcwallet="coordinator_wallet" -generate 101
-
 # Generate a block every 120 seconds
 while true; do
     bitcoin-cli -regtest -datadir="/home/bitcoin/.bitcoin" -rpcwallet="coordinator_wallet" -generate 1

taptrade-cli-demo/trader/src/trading/mod.rs

@@ -50,7 +50,7 @@ pub fn run_maker(maker_config: &TraderSettings) -> Result<()> {
 		info!("Waiting for other party to confirm the trade.");
 		let payout_keyspend_psbt = IsOfferReadyRequest::poll_payout(maker_config, &offer)?;
 	} else {
-		error!("Trade failed.");
+		error!("Trade failed. Initiating escrow mode.");
 		panic!("Escrow to be implemented!");
 	}
 	Ok(())