From 21b90ee323be60c1a15632216d7ce2914e6b3cbb Mon Sep 17 00:00:00 2001
From: Tau <tau@nowhere>
Date: Mon, 26 Nov 2018 19:02:30 -0500
Subject: [PATCH] Add lookup cmd decoder

---
 src/aimedb/cmd.js      | 12 ++++++++++++
 src/aimedb/cmd.test.js | 24 ++++++++++++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/src/aimedb/cmd.js b/src/aimedb/cmd.js
index 0c26021..289d477 100644
--- a/src/aimedb/cmd.js
+++ b/src/aimedb/cmd.js
@@ -16,10 +16,22 @@ class Decoder extends Transform {
     return { gameId, keychipId }
   }
 
+  static lookup(payload) {
+    const luid = payload.slice(0x0020, 0x002A)
+
+    return { luid, ...Decoder.ident(payload) }
+  }
+
   _transform(chunk, encoding, callback) {
     const cmd = chunk.readUInt16LE(0x04)
 
     switch (cmd) {
+      case 0x000F:
+        return callback(null, {
+          cmd: 'lookup',
+          ...Decoder.lookup(chunk),
+        })
+
       case 0x0064:
         return callback(null, {
           cmd: 'hello',
diff --git a/src/aimedb/cmd.test.js b/src/aimedb/cmd.test.js
index 8773dc9..031cb56 100644
--- a/src/aimedb/cmd.test.js
+++ b/src/aimedb/cmd.test.js
@@ -18,6 +18,30 @@ test('decode hello', () => {
 
   const obj = decode(req)
 
+  expect(obj.cmd).toBe('hello')
   expect(obj.gameId).toBe('SDBT')
   expect(obj.keychipId).toBe('A69E01A9999')
 })
+
+test('decode lookup', () => {
+  const req = Buffer.from([
+    0x3e, 0xa1, 0x87, 0x30, 0x0f, 0x00, 0x30, 0x00,
+    0x00, 0x00, 0x53, 0x44, 0x42, 0x54, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x41, 0x36, 0x39, 0x45,
+    0x30, 0x31, 0x41, 0x39, 0x39, 0x39, 0x39, 0x00,
+    0x01, 0x03, 0x64, 0x95, 0x85, 0x05, 0x23, 0x03,
+    0x06, 0x76, 0x01, 0x02, 0x22, 0xc6, 0x4e, 0x00,
+  ])
+
+  const obj = decode(req)
+
+  expect(obj.cmd).toBe('lookup')
+  expect(obj.gameId).toBe('SDBT')
+  expect(obj.keychipId).toBe('A69E01A9999')
+  expect(obj.luid).toEqual(
+    Buffer.from([
+      0x01, 0x03, 0x64, 0x95, 0x85, 0x05, 0x23, 0x03,
+      0x06, 0x76,
+    ])
+  )
+})