trader bond assemblz

taptrade-cli-demo/trader/.env

@@ -2,6 +2,6 @@ ELECTRUM_ENDPOINT="ssl://mempool.space:40002" # testnet 4 electrum server
 COORDINATOR_ENDPOINT="http://127.0.0.1:9999"
 ROBOHASH_BASE91="o!kfNkee;RF?m6FT87:1bjASE2/(1NFTnR;ILmHB<1p/vP%STz~IWolNDJa.#PmTI)sfBk+Gs!,(w8M"  # "robot21"
 TRADE_TYPE="buy"
-PAYOUT_ADDRESS="tb1pxg64k0729s327n7u4n34vcmjxg42phvjykyt3f0xvcs3x5xfdxgqpt5sql"
+PAYOUT_ADDRESS="tb1p45daj2eaza6drcd85c3wvn0zrpqxuduk3rzcmla4eu7a02cep9kqjzkc64"
 BOND_RATIO=5
-FUNDED_WALLET_DESCRIPTOR="tr([3ed82ea5/86h/1h/0h]tpubDCi4JkK1113yExq1Jc42fFYkWt4cfXMSnv47kz6HrU3giqpY6Cu19jc7uXgj5szMyiUnRD4tC8R9mBHLNZw1cKttySbAUEDAYo7bQGSi625/<0;1>/*)#fh3av2m4" # sparrow wallet taproot wallet descriptor
+XPRV="tprv8ZgxMBicQKsPdHuCSjhQuSZP1h6ZTeiRqREYS5guGPdtL7D1uNLpnJmb2oJep99Esq1NbNZKVJBNnD2ZhuXSK7G5eFmmcx73gsoa65e2U32" # wallet xprv

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

@@ -76,7 +76,7 @@ impl CliSettings {
         let trade_type: OfferType = Self::get_trade_type(None);
         let payout_address = Self::get_user_input("Enter a payout address for refunded bonds or your trade payout: ");  // bdk can be used for validation
         let bond_ratio: u8 = Self::get_user_input("Enter bond ration in [2, 50]%: ").parse()?;
-        let funded_wallet_descriptor = Self::get_wallet_descriptors(Some(Self::get_user_input("Enter funded testnet wallet descriptor: ")))?;
+        let funded_wallet_descriptor = Self::get_wallet_descriptors(Some(Self::get_user_input("Enter funded testnet wallet xprv or leave empty to generate: ")))?;
         Ok(TraderSettings {
             electrum_endpoint,
             coordinator_endpoint,
@@ -91,13 +91,10 @@ impl CliSettings {
     fn get_wallet_descriptors(cli_input: Option<String>) -> Result<WalletDescriptors> {
         if let Some(user_input) = cli_input {
             if !(user_input.is_empty()) {
-                return Ok(WalletDescriptors {
-                    descriptor: user_input,
-                    change_descriptor: None
-                });
+                return generate_descriptor_wallet(Some(user_input));
             }
         };
-        generate_descriptor_wallet()
+        generate_descriptor_wallet(None)
     }
 
     fn load_from_env() -> Result<TraderSettings> {
@@ -109,7 +106,7 @@ impl CliSettings {
             trade_type: Self::get_trade_type(Some(env::var("TRADE_TYPE")?)),
             payout_address: env::var("PAYOUT_ADDRESS")?,
             bond_ratio: env::var("BOND_RATIO")?.parse()?,
-            funded_wallet_descriptor: Self::get_wallet_descriptors(Some(env::var("FUNDED_WALLET_DESCRIPTOR")?))?,
+            funded_wallet_descriptor: Self::get_wallet_descriptors(Some(env::var("XPRV")?))?,
         })
     }
 

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

@@ -1,16 +1,18 @@
 // use maker_utils;
 // use taker_utils;
 // use utils;
+
 use anyhow::Result;
 use crate::cli::TraderSettings;
 use crate::communication::api::OfferCreationResponse;
-use crate::wallet::load_wallet;
+use crate::wallet::{load_wallet, bond::Bond};
+
 
 
 pub fn run_maker(maker_config: &TraderSettings) -> Result<()> {
-    // let offer_conditions = OfferCreationResponse::fetch(maker_config)?;
-    load_wallet(maker_config)?;
-    // maker_utils::maker(offer_conditions, maker_config)
+    let offer_conditions = OfferCreationResponse::fetch(maker_config)?;
+    let wallet = load_wallet(maker_config)?;
+    let bond = Bond::assemble(&wallet, &offer_conditions, maker_config)?;
 
     Ok(())
 }

taptrade-cli-demo/trader/src/wallet/bond.rs

@@ -0,0 +1,44 @@
+use anyhow::Result;
+use bdk::{database::MemoryDatabase, wallet::coin_selection::BranchAndBoundCoinSelection, Wallet};
+
+use crate::communication::api::OfferCreationResponse;
+use crate::wallet::TraderSettings;
+
+pub struct Outpoint {
+	pub txid_hex: String,
+	pub index: u32
+}
+
+pub struct Bond {
+	pub signed_bond_tx_hex: String,
+	pub used_outpoint: Outpoint
+}
+
+impl Bond {
+	pub fn assemble(wallet: &Wallet<MemoryDatabase>,
+					bond_target: &OfferCreationResponse,
+					trader_input: &TraderSettings) -> Result<Bond> {
+		// let send_to = wallet.get_address(New)?;
+
+		let (psbt, details) = {
+			let mut builder =  wallet.build_tx();
+			builder
+				.coin_selection(BranchAndBoundCoinSelection::new(10000))
+				.add_recipient(send_to.script_pubkey(), 50_000)
+				.enable_rbf()
+				.do_not_spend_change()
+				.fee_rate(FeeRate::from_sat_per_vb(5.0));
+			// coin_select
+			// manually_selected_only
+			// add_unspendable
+			// do_not_spend_change
+			// builder.finish()?
+    };
+
+		Ok(_)
+	}
+}
+
+// impl BranchAndBoundCoinSelection
+// pub fn new(size_of_change: u64) -> Self
+// Create new instance with target size for change output

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

@@ -1,52 +1,56 @@
-mod bond;
+pub mod bond;
 
-use bdk::{Wallet, KeychainKind, SyncOptions, bitcoin, template::{Bip86, DescriptorTemplate}};
+use bdk::{bitcoin, keys::DescriptorPublicKey, miniscript::Descriptor, template::{Bip86, DescriptorTemplate}, KeychainKind, SyncOptions, Wallet};
 use bdk::database::MemoryDatabase;
 use bdk::blockchain::ElectrumBlockchain;
 use bdk::bitcoin::{Network, secp256k1::rand::{self, RngCore}, bip32::ExtendedPrivKey};
 use bdk::electrum_client::Client;
 use anyhow::Result;
+use std::str::FromStr;
 use crate::cli::TraderSettings;
 
 // https://github.com/bitcoindevkit/book-of-bdk
 
 #[derive(Debug)]
 pub struct WalletDescriptors {
-	pub descriptor: String,
-	pub change_descriptor: Option<String>
+	pub descriptor: Descriptor<DescriptorPublicKey>,
+	pub change_descriptor: Option<Descriptor<DescriptorPublicKey>>
 }
 
-pub fn generate_descriptor_wallet() -> Result<WalletDescriptors> {
-	let mut seed: [u8; 32] = [0u8; 32];
-    rand::thread_rng().fill_bytes(&mut seed);  // verify this is secure randomness!
+pub fn generate_descriptor_wallet(xprv_input: Option<String>) -> Result<WalletDescriptors> {
+	let xprv: ExtendedPrivKey;
+	let network: Network = Network::Testnet;
+
+	if let Some(xprv_i) = xprv_input {
+		xprv = ExtendedPrivKey::from_str(&xprv_i)?;
+	} else {
+		let mut seed: [u8; 32] = [0u8; 32];
+		rand::thread_rng().fill_bytes(&mut seed);  // verify this is secure randomness!
+		xprv = ExtendedPrivKey::new_master(network, &seed)?;
+		dbg!("Generated xprv: ", xprv.to_string());
+	}
 
-    let network: Network = Network::Testnet;
-    let xprv: ExtendedPrivKey = ExtendedPrivKey::new_master(network, &seed)?;
     let (descriptor, key_map, _) = Bip86(xprv, KeychainKind::External).build(network).unwrap();
     let (change_descriptor, change_key_map, _) = Bip86(xprv, KeychainKind::Internal).build(network)?;
 	let descriptors = WalletDescriptors {
-		descriptor: descriptor.to_string_with_secret(&key_map),
-		change_descriptor: Some(change_descriptor.to_string_with_secret(&change_key_map)),
+		descriptor,
+		change_descriptor: Some(change_descriptor)
 	};
-	dbg!("Generated wallet descriptors: ", &descriptors);
 	Ok(descriptors)
 }
 
-pub fn load_wallet(trader_config: &TraderSettings) -> Result<()> {
-	// let client = Client::new(&trader_config.electrum_endpoint)?;
+pub fn load_wallet(trader_config: &TraderSettings) -> Result<Wallet<MemoryDatabase>> {
+	let client = Client::new(&trader_config.electrum_endpoint)?;
+	let blockchain = ElectrumBlockchain::from(client);
 
+	let wallet = Wallet::new(
+		trader_config.funded_wallet_descriptor.descriptor.clone(),
+		trader_config.funded_wallet_descriptor.change_descriptor.clone(),
+        bitcoin::Network::Testnet,
+        MemoryDatabase::default(),  // non-permanent storage
+    )?;
 
-	// let blockchain = ElectrumBlockchain::from(client);
-    // let wallet = Wallet::new(
-	// 	trader_config.funded_wallet_descriptor.as_str(),
-	// 	None,
-    //     bitcoin::Network::Testnet,
-    //     MemoryDatabase::default(),  // non-permanent storage
-    // )?;
-	// panic!("yeet");
-    // wallet.sync(&blockchain, SyncOptions::default())?;
-
-    // println!("Descriptor balance: {} SAT", wallet.get_balance()?);
-	// panic!("yeet");
-    Ok(())
+    wallet.sync(&blockchain, SyncOptions::default())?;
+    println!("Descriptor balance: {} SAT", wallet.get_balance()?);
+    Ok(wallet)
 }

taptrade-cli-demo/trader/todos.md

@@ -0,0 +1 @@
+tbd