Use debug package for logging

src/aimedb/decoder.ts

@@ -1,7 +1,10 @@
+import logger from "debug";
 import { Transform } from "stream";
 
 import * as Request from "./request";
 
+const debug = logger("app:aimedb:decoder");
+
 function begin(msg: Buffer): Request.AimeRequestBase {
   const gameId = msg.toString("ascii", 0x000a, 0x000e);
   const keychipId = msg.toString("ascii", 0x0014, 0x001f);
@@ -116,6 +119,10 @@ export class Decoder extends Transform {
       );
     }
 
-    return callback(null, reader(msg));
+    const obj = reader(msg);
+
+    debug(`Decode ${JSON.stringify(obj)}`);
+
+    return callback(null, obj);
   }
 }

src/aimedb/encoder.ts

@@ -1,7 +1,10 @@
+import logger from "debug";
 import { Transform } from "stream";
 
 import { AimeResponse, RegisterLevel } from "./response";
 
+const debug = logger("app:aimedb:encoder");
+
 const registerLevels = new Map<RegisterLevel, number>();
 
 registerLevels.set("none", 0);
@@ -27,7 +30,7 @@ export class Encoder extends Transform {
   }
 
   _transform(msg: AimeResponse, encoding, callback) {
-    console.log("Aimedb: Encode", msg);
+    debug(`Encode ${JSON.stringify(msg)}`);
 
     let buf: Buffer;
 
@@ -105,7 +108,7 @@ export class Encoder extends Transform {
         return callback(new Error("Unimplemented response type"));
     }
 
-    console.log("Aimedb: Send", buf.toString("hex"));
+    debug(`Send ${buf.toString("hex")}`);
 
     return callback(null, buf);
   }

src/aimedb/frame.ts

@@ -1,5 +1,8 @@
+import logger from "debug";
 import { Transform } from "stream";
 
+const debug = logger("app:aimedb:frame");
+
 export class Deframer extends Transform {
   private state: Buffer;
 
@@ -33,7 +36,7 @@ export class Deframer extends Transform {
 
     const frame = this.state.slice(0, len);
 
-    console.log("Aimedb: Recv", frame.toString("hex"));
+    debug(`Recv ${frame.toString("hex")}`);
 
     this.state = this.state.slice(len);
 

src/aimedb/handler.ts

@@ -1,13 +1,17 @@
+import logger from "debug";
+
 import { Repositories } from "./repo";
 import * as Req from "./request";
 import * as Res from "./response";
 
+const debug = logger("app:aimedb:ops");
+
 function hello(
   rep: Repositories,
   req: Req.HelloRequest,
   now: Date
 ): Res.HelloResponse {
-  console.log("Aimedb: Hello");
+  debug("Hello");
 
   return { type: req.type, status: 1 };
 }
@@ -17,7 +21,7 @@ function campaign(
   req: Req.CampaignRequest,
   now: Date
 ): Res.CampaignResponse {
-  console.log("Aimedb: Campaign stuff");
+  debug("Campaign stuff");
 
   return { type: req.type, status: 1 };
 }
@@ -27,7 +31,7 @@ function feliCaLookup(
   req: Req.FeliCaLookupRequest,
   now: Date
 ): Res.FeliCaLookupResponse {
-  console.log("Aimedb: FeliCa access code lookup");
+  debug("FeliCa access code lookup");
 
   // Well, this access code transformation is the million dollar question eh
   // Return a decimal representation for now.
@@ -47,7 +51,7 @@ async function lookup(
   req: Req.LookupRequest,
   now: Date
 ): Promise<Res.LookupResponse> {
-  console.log("Aimedb: Mifare lookup v1", req.luid);
+  debug(`Mifare lookup v1: luid=${req.luid}`);
 
   return {
     type: req.type,
@@ -62,7 +66,7 @@ async function lookup2(
   req: Req.LookupRequest2,
   now: Date
 ): Promise<Res.LookupResponse2> {
-  console.log("Aimedb: Mifare lookup v2", req.luid);
+  debug(`Mifare lookup v2: luid=${req.luid}`);
 
   return {
     type: req.type,
@@ -77,7 +81,7 @@ async function register(
   req: Req.RegisterRequest,
   now: Date
 ): Promise<Res.RegisterResponse> {
-  console.log("Aimedb: Mifare register", req.luid);
+  debug(`User register: luid=${req.luid}`);
 
   return {
     type: req.type,
@@ -91,7 +95,7 @@ function log(
   req: Req.LogRequest,
   now: Date
 ): Res.LogResponse {
-  console.log("Aimedb: Log message");
+  debug("Log message");
 
   return { type: req.type, status: 1 };
 }
@@ -124,7 +128,7 @@ export async function dispatch(
       return log(rep, req, now);
 
     case "goodbye":
-      console.log("Aimedb: Goodbye");
+      debug("Goodbye");
 
       return undefined;
 

src/aimedb/index.ts

@@ -1,3 +1,4 @@
+import logger from "debug";
 import { Socket } from "net";
 
 import { dispatch } from "./handler";
@@ -5,22 +6,22 @@ import { AimeRequest } from "./request";
 import { setup } from "./pipeline";
 import { beginDbSession } from "./db";
 
+const debug = logger("app:aimedb:session");
+
 export default async function aimedb(socket: Socket) {
-  console.log("Aimedb: Connection opened");
+  debug("Connection opened");
 
   const { input, output } = setup(socket);
   const txn = await beginDbSession();
 
   try {
     for await (const obj of input) {
-      console.log("Aimedb: Decode", obj);
-
       const now = new Date();
       const req = obj as AimeRequest;
       const res = await dispatch(txn, req, now);
 
       if (res === undefined) {
-        console.log("Aimedb: Closing connection");
+        debug("Closing connection");
 
         break;
       }
@@ -30,10 +31,10 @@ export default async function aimedb(socket: Socket) {
 
     await txn.commit();
   } catch (e) {
-    console.log("Aimedb: Connection error:\n", e);
+    debug(`Connection error:\n${e.toString()}\n`);
     await txn.rollback();
   }
 
-  console.log("Aimedb: Connection closed\n");
+  debug("Connection closed");
   socket.end();
 }