From 4629472d69778290a39b9ddab7cb4eee70854cea Mon Sep 17 00:00:00 2001
From: Andrew Poelstra <apoelstra@wpsoftware.net>
Date: Mon, 1 Sep 2014 15:11:38 -0500
Subject: [PATCH] Block in wallet support

---
 src/wallet/mod.rs    |  1 +
 src/wallet/wallet.rs | 88 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 89 insertions(+)
 create mode 100644 src/wallet/wallet.rs

diff --git a/src/wallet/mod.rs b/src/wallet/mod.rs
index 65e9731..fb7c789 100644
--- a/src/wallet/mod.rs
+++ b/src/wallet/mod.rs
@@ -18,4 +18,5 @@
 
 pub mod address;
 pub mod bip32;
+pub mod wallet;
 
diff --git a/src/wallet/wallet.rs b/src/wallet/wallet.rs
new file mode 100644
index 0000000..9009473
--- /dev/null
+++ b/src/wallet/wallet.rs
@@ -0,0 +1,88 @@
+// Rust Bitcoin Library
+// Written in 2014 by
+//   Andrew Poelstra <apoelstra@wpsoftware.net>
+// To the extent possible under law, the author(s) have dedicated all
+// copyright and related and neighboring rights to this software to
+// the public domain worldwide. This software is distributed without
+// any warranty.
+//
+// You should have received a copy of the CC0 Public Domain Dedication
+// along with this software.
+// If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
+//
+
+//! # Wallet
+//!
+//! Everything to do with the wallet
+//!
+
+use std::collections::HashMap;
+use std::default::Default;
+
+use network::constants::Network;
+use wallet::bip32::{mod, ChildNumber, ExtendedPrivKey, Normal, Hardened};
+
+/// A Wallet error
+pub enum Error {
+  /// Tried to lookup an account by name, but none was found
+  AccountNotFound,
+  /// Tried to add an account when one already exists with that name
+  DuplicateAccount
+}
+
+/// An account
+#[deriving(Clone, PartialEq, Eq, Show)]
+pub struct Account {
+  name: String,
+  internal_path: Vec<ChildNumber>,
+  external_path: Vec<ChildNumber>
+}
+
+impl Default for Account {
+  fn default() -> Account {
+    Account {
+      name: String::new(),
+      internal_path: vec![Hardened(0), Normal(1)],
+      external_path: vec![Hardened(0), Normal(0)]
+    }
+  }
+}
+
+/// A wallet
+#[deriving(Clone, PartialEq, Eq, Show)]
+pub struct Wallet {
+  master: ExtendedPrivKey,
+  accounts: HashMap<String, Account>
+}
+
+impl Wallet {
+  /// Creates a new wallet from a seed
+  pub fn from_seed(network: Network, seed: &[u8]) -> Result<Wallet, bip32::Error> {
+    let mut accounts = HashMap::new();
+    accounts.insert(String::new(), Default::default());
+
+    Ok(Wallet {
+      master: try!(ExtendedPrivKey::new_master(network, seed)),
+      accounts: accounts
+    })
+  }
+
+  /// Adds an account to a wallet
+  pub fn add_account(&mut self, name: String)
+                     -> Result<(), Error> {
+    if self.accounts.find(&name).is_some() {
+      return Err(DuplicateAccount);
+    }
+
+    let idx = self.accounts.len() as u32;
+    self.accounts.insert(name.clone(), Account {
+      name: name,
+      internal_path: vec![Hardened(idx), Normal(1)],
+      external_path: vec![Hardened(idx), Normal(0)]
+    });
+    Ok(())
+  }
+}
+
+
+