From 14eb853f276a63f8c0ec17d300865577599769bc Mon Sep 17 00:00:00 2001
From: Arthur Britto <ahbritto@gmail.com>
Date: Tue, 18 Sep 2012 15:44:25 -0700
Subject: [PATCH] Checking sketch of JS libs.

---
 js/ledger.js      | 34 ++++++++++++++++++++++++++++++++++
 js/serializer.js  | 44 ++++++++++++++++++++++++++++++++++++++++++++
 js/transaction.js | 38 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 116 insertions(+)
 create mode 100644 js/ledger.js
 create mode 100644 js/serializer.js
 create mode 100644 js/transaction.js

diff --git a/js/ledger.js b/js/ledger.js
new file mode 100644
index 00000000..42c04fc1
--- /dev/null
+++ b/js/ledger.js
@@ -0,0 +1,34 @@
+//
+// Tools for working with ledger entries.
+//
+// Fundamentally, we work in the more strict case of not trusting the ledger as presented.  If we have a server we trust, then the
+// burden of verify the ledger entries is left to the server.  But, we work in the same fundamental units of information, ledger
+// entries, to keep the code orthagonal.
+//
+
+var serializer = require("./serializer");
+
+exports.getLedgerEntry = function(key, done) {
+	var	id	= (ws.id += 1);
+
+	ws.response[id] = done;
+
+	ws.send({
+			'command': 'getLedgerEntry',
+			'id': id,
+			'ledger': ledger,
+			'account': accountId,
+			'proof': false			// Eventually, we will want proof if the server is untrusted.
+		});
+};
+
+exports.getAccountRootNode = function(ledger, accountId, done) {
+	var s	= new Serializer();
+
+	s.addUInt16('a');
+	s.addUInt160(accountId);
+
+	getLedgerEntry(s.getSHA512Half(), done);
+};
+
+// vim:ts=4
diff --git a/js/serializer.js b/js/serializer.js
new file mode 100644
index 00000000..00f9e070
--- /dev/null
+++ b/js/serializer.js
@@ -0,0 +1,44 @@
+//
+
+var serializer = {};
+
+serializer.addUInt16 = function(value) {
+	switch (typeof value) {
+	case 'string':
+		addUInt16(value.charCodeAt(0));
+		break;
+
+	case 'integer':
+		for (i = 16/8; i; i -=1) {
+			raw.push(value & 255);
+			value >>= 8;
+		}
+		break;
+	
+	default:
+		throw 'UNEXPECTED_TYPE';
+	}
+};
+
+serializer.addUInt160 = function(value) {
+	switch (typeof value) {
+	case 'array':
+		raw.concat(value);
+		break;
+	
+	case 'integer':
+		for (i = 160/8; i; i -=1) {
+			raw.push(value & 255);
+			value >>= 8;
+		}
+		break;
+	
+	default:
+		throw 'UNEXPECTED_TYPE';
+	}
+};
+
+serializer.getSHA512Half = function() {
+};
+
+// vim:ts=4
diff --git a/js/transaction.js b/js/transaction.js
new file mode 100644
index 00000000..3706a24a
--- /dev/null
+++ b/js/transaction.js
@@ -0,0 +1,38 @@
+// Work with transactions.
+//
+// This works for both trusted and untrusted servers.
+//
+// For untrusted servers:
+//    - We never send a secret to an untrusted server.
+//    - Convert transactions to and from JSON.
+//    - Sign and verify signatures.
+//    - Encrypt and decrypt.
+//
+// For trusted servers:
+//    - We need a websocket way of working with transactions as JSON.
+//    - This allows us to not need to port the transaction tools to so many
+//      languages.
+//
+
+var commands = {};
+
+commands.buildSend = function(params) {
+	var	srcAccountID	= params.srcAccountID;
+	var fee				= params.fee;
+	var	dstAccountID	= params.dstAccountID;
+	var	amount			= params.amount;
+	var	sendMax			= params.sendMax;
+	var	partial			= params.partial;
+	var limit			= params.limit;
+};
+
+
+exports.trustedCreate = function() {
+
+};
+
+exports.untrustedCreate = function() {
+
+};
+
+// vim:ts=4