1 files changed, 170 insertions, 0 deletions
diff --git a/impls/monero_rust/src/lib.rs b/impls/monero_rust/src/lib.rs
new file mode 100644
index 0000000..d576ea6
--- /dev/null
+++ b/impls/monero_rust/src/lib.rs
@@ -0,0 +1,170 @@
+use std::ffi::{CStr, CString};
+use std::os::raw::{c_char, c_int, c_void};
+use std::ptr::NonNull;
+
+pub const NETWORK_TYPE_MAINNET: c_int = 0;
+pub const NETWORK_TYPE_TESTNET: c_int = 1;
+pub const NETWORK_TYPE_STAGENET: c_int = 2;
+
+extern "C" {
+    pub fn MONERO_WalletManagerFactory_getWalletManager() -> *mut c_void;
+    pub fn MONERO_WalletManager_createWallet(
+        wm_ptr: *mut c_void,
+        path: *const c_char,
+        password: *const c_char,
+        language: *const c_char,
+        networkType: c_int,
+    ) -> *mut c_void;
+    pub fn MONERO_Wallet_seed(
+        wallet_ptr: *mut c_void,
+        seed_offset: *const c_char,
+    ) -> *const c_char;
+    pub fn MONERO_WalletManager_closeWallet(
+        wm_ptr: *mut c_void,
+        wallet_ptr: *mut c_void,
+        store: bool,
+    ) -> bool;
+    pub fn MONERO_Wallet_errorString(wallet_ptr: *mut c_void) -> *const c_char;
+    pub fn MONERO_Wallet_status(wallet_ptr: *mut c_void) -> c_int;
+    pub fn MONERO_Wallet_address(
+        wallet_ptr: *mut c_void,
+        account_index: u64,
+        address_index: u64,
+    ) -> *const c_char;
+    pub fn MONERO_Wallet_isDeterministic(wallet_ptr: *mut c_void) -> bool;
+    pub fn MONERO_WalletManager_walletExists(
+        wm_ptr: *mut c_void,
+        path: *const c_char,
+    ) -> bool;
+}
+
+#[derive(Debug)]
+pub enum WalletError {
+    NullPointer,
+    FfiError(String),
+    WalletErrorCode(c_int, String),
+}
+
+type WalletResult<T> = Result<T, WalletError>;
+
+pub struct WalletManager {
+    ptr: NonNull<c_void>,
+}
+
+impl WalletManager {
+    pub fn new() -> WalletResult<Self> {
+        unsafe {
+            let ptr = MONERO_WalletManagerFactory_getWalletManager();
+            NonNull::new(ptr)
+                .map(|nn_ptr| WalletManager { ptr: nn_ptr })
+                .ok_or(WalletError::NullPointer)
+        }
+    }
+
+    pub fn create_wallet(
+        &self,
+        path: &str,
+        password: &str,
+        language: &str,
+        network_type: c_int,
+    ) -> WalletResult<Wallet> {
+        let c_path = CString::new(path).expect("CString::new failed");
+        let c_password = CString::new(password).expect("CString::new failed");
+        let c_language = CString::new(language).expect("CString::new failed");
+
+        unsafe {
+            let wallet_ptr = MONERO_WalletManager_createWallet(
+                self.ptr.as_ptr(),
+                c_path.as_ptr(),
+                c_password.as_ptr(),
+                c_language.as_ptr(),
+                network_type,
+            );
+
+            if wallet_ptr.is_null() {
+                Err(WalletError::NullPointer)
+            } else {
+                Ok(Wallet {
+                    ptr: NonNull::new_unchecked(wallet_ptr),
+                    manager_ptr: self.ptr,
+                })
+            }
+        }
+    }
+}
+
+pub struct Wallet {
+    ptr: NonNull<c_void>,
+    manager_ptr: NonNull<c_void>,
+}
+
+impl Wallet {
+    pub fn get_seed(&self, seed_offset: &str) -> WalletResult<String> {
+        let c_seed_offset = CString::new(seed_offset).expect("CString::new failed");
+
+        unsafe {
+            let seed_ptr = MONERO_Wallet_seed(self.ptr.as_ptr(), c_seed_offset.as_ptr());
+
+            if seed_ptr.is_null() {
+                Err(self.get_last_error())
+            } else {
+                let seed = CStr::from_ptr(seed_ptr)
+                    .to_string_lossy()
+                    .into_owned();
+                if seed.is_empty() {
+                    Err(WalletError::FfiError("Received empty seed".to_string()))
+                } else {
+                    Ok(seed)
+                }
+            }
+        }
+    }
+
+    pub fn get_address(&self, account_index: u64, address_index: u64) -> WalletResult<String> {
+        unsafe {
+            let address_ptr = MONERO_Wallet_address(
+                self.ptr.as_ptr(),
+                account_index,
+                address_index,
+            );
+
+            if address_ptr.is_null() {
+                Err(self.get_last_error())
+            } else {
+                let address = CStr::from_ptr(address_ptr)
+                    .to_string_lossy()
+                    .into_owned();
+                Ok(address)
+            }
+        }
+    }
+
+    pub fn is_deterministic(&self) -> bool {
+        unsafe { MONERO_Wallet_isDeterministic(self.ptr.as_ptr()) }
+    }
+
+    fn get_last_error(&self) -> WalletError {
+        unsafe {
+            let error_ptr = MONERO_Wallet_errorString(self.ptr.as_ptr());
+            let status = MONERO_Wallet_status(self.ptr.as_ptr());
+
+            let error_msg = if error_ptr.is_null() {
+                "Unknown error".to_string()
+            } else {
+                CStr::from_ptr(error_ptr)
+                    .to_string_lossy()
+                    .into_owned()
+            };
+
+            WalletError::WalletErrorCode(status, error_msg)
+        }
+    }
+}
+
+impl Drop for Wallet {
+    fn drop(&mut self) {
+        unsafe {
+            MONERO_WalletManager_closeWallet(self.manager_ptr.as_ptr(), self.ptr.as_ptr(), false);
+        }
+    }
+}