Add compact block filters blockchain feature using the Nakamoto client

Cargo.toml

@@ -14,7 +14,8 @@ crate-type = ["staticlib", "cdylib"]
 name = "bdkffi"
 
 [dependencies]
-bdk = { version = "0.22", features = ["all-keys", "use-esplora-ureq", "sqlite-bundled"] }
+# bdk = { version = "0.22", features = ["all-keys", "use-esplora-ureq", "sqlite-bundled"] }
+bdk = { git = "https://github.com/rajarshimaitra/bdk.git", branch = "cbf", features = ["all-keys", "use-esplora-ureq", "sqlite-bundled", "compact_filters"] }
 
 uniffi_macros = { version = "0.19.3", features = ["builtin-bindgen"] }
 uniffi = { version = "0.19.3", features = ["builtin-bindgen"] }

src/bdk.udl

@@ -46,6 +46,7 @@ enum BdkError {
   "Esplora",
   "Sled",
   "Rusqlite",
+  "Cbf",
 };
 
 dictionary AddressInfo {
@@ -127,10 +128,16 @@ dictionary EsploraConfig {
   u64? timeout;
 };
 
+dictionary CBFConfig {
+  Network network;
+  string? datadir;
+};
+
 [Enum]
 interface BlockchainConfig {
   Electrum(ElectrumConfig config);
   Esplora(EsploraConfig config);
+  CBF(CBFConfig config);
 };
 
 interface Blockchain {

src/lib.rs

@@ -7,7 +7,8 @@ use bdk::blockchain::any::{AnyBlockchain, AnyBlockchainConfig};
 use bdk::blockchain::GetBlockHash;
 use bdk::blockchain::GetHeight;
 use bdk::blockchain::{
-    electrum::ElectrumBlockchainConfig, esplora::EsploraBlockchainConfig, ConfigurableBlockchain,
+    compact_filters::nakamoto::CBFBlockchainConfig, electrum::ElectrumBlockchainConfig,
+    esplora::EsploraBlockchainConfig, ConfigurableBlockchain,
 };
 use bdk::blockchain::{Blockchain as BdkBlockchain, Progress as BdkProgress};
 use bdk::database::any::{AnyDatabase, SledDbConfiguration, SqliteDbConfiguration};
@@ -30,6 +31,7 @@ use std::collections::HashSet;
 use std::convert::{From, TryFrom};
 use std::fmt;
 use std::ops::Deref;
+use std::path::PathBuf;
 use std::str::FromStr;
 use std::sync::{Arc, Mutex, MutexGuard};
 
@@ -131,12 +133,19 @@ pub struct EsploraConfig {
     pub timeout: Option<u64>,
 }
 
+pub struct CBFConfig {
+    network: Network,
+    datadir: Option<String>,
+}
+
 /// Type that can contain any of the blockchain configurations defined by the library.
 pub enum BlockchainConfig {
     /// Electrum client
     Electrum { config: ElectrumConfig },
     /// Esplora client
     Esplora { config: EsploraConfig },
+    /// Nakamoto client
+    CBF { config: CBFConfig },
 }
 
 /// A wallet transaction
@@ -197,6 +206,22 @@ impl Blockchain {
                     timeout: config.timeout,
                 })
             }
+            // TODO: not sure this is the right way to deal with the PathBuf
+            // This String to PathBuf conversion is not working out well
+            BlockchainConfig::CBF { config } => {
+                let path0: String = config
+                    .datadir
+                    .map(|d| d)
+                    .unwrap_or(String::from("./nakamoto/"));
+                let path: PathBuf = PathBuf::from(path0);
+                // let path: PathBuf = PathBuf::from("./nakamoto/");
+                AnyBlockchainConfig::CompactFilters(CBFBlockchainConfig {
+                    network: config.network,
+                    datadir: Some(path),
+                    // datadir: Option::from(PathBuf::from_str(config.datadir.unwrap_or_default(".".to_string()))),
+                    // datadir: Option::from(PathBuf::from(config.datadir)),
+                })
+            }
         };
         let blockchain = AnyBlockchain::from_config(&any_blockchain_config)?;
         Ok(Self {