1 files changed, 31 insertions, 0 deletions
diff --git a/ui/lib/contract-namer.js b/ui/lib/contract-namer.js
new file mode 100644
index 000000000..62c7933e8
--- /dev/null
+++ b/ui/lib/contract-namer.js
@@ -0,0 +1,31 @@
+/* CONTRACT NAMER
+ *
+ * Takes an address,
+ * Returns a nicname if we have one stored,
+ * otherwise returns null.
+ */
+
+// Nickname keys must be stored in lower case.
+const nicknames = {}
+
+module.exports = function(addr, identities = {}) {
+
+  const address = addr.toLowerCase()
+  const ids = hashFromIdentities(identities)
+
+  console.dir({ addr, ids })
+  return addrFromHash(address, ids) || addrFromHash(address, nicknames)
+}
+
+function hashFromIdentities(identities) {
+  const result = {}
+  for (let key in identities) {
+    result[key] = identities[key].name
+  }
+  return result
+}
+
+function addrFromHash(addr, hash) {
+  const address = addr.toLowerCase()
+  return hash[address] || null
+}