Add support for external loggers

src/cheapGlkOte.js

@@ -5,7 +5,7 @@
 const GlkOte = require('./glkOte/glkote-term')
 
 class CheapGlkOte extends GlkOte {
-  constructor(handlers) {
+  constructor(handlers, loggers) {
     super()
 
     this.window = null
@@ -94,16 +94,16 @@ class CheapGlkOte extends GlkOte {
     })
   }
 
-  log(msg) {
-    console.log(`[log]: ${msg}`)
+  log(message) {
+    loggers.log(message)
   }
 
-  warning(msg) {
-    console.warn(`[warning]: ${msg}`)
+  warning(message) {
+    loggers.warn(message)
   }
 
   error(message) {
-    console.error(`[error]: ${message}`)
+    loggers.error(message)
   }
 }
 

src/fakeDialog.js

@@ -4,7 +4,7 @@
  */
 
 class FakeDialog {
-  constructor(handlers) {
+  constructor(handlers, loggers) {
     this.streaming = false
     this.handlers = handlers
   }
@@ -32,7 +32,15 @@ class FakeDialog {
   }
 
   log(message) {
-    console.log(message)
+    loggers.log(message)
+  }
+
+  warning(message) {
+    loggers.warn(message)
+  }
+
+  error(message) {
+    loggers.error(message)
   }
 }
 

src/index.js

@@ -15,12 +15,18 @@ const noopHandlers = [
   'setSend'
 ].reduce((acc, x) => ((acc[x] = noop), acc), {})
 
-module.exports = handlers_ => {
+const defaultLoggers = {
+  log: console.log,
+  warning: console.warn,
+  error: console.error
+}
+
+module.exports = (handlers_, loggers = defaultLoggers) => {
   const handlers =
     Object.assign({}, noopHandlers, handlers_)
 
-  const Dialog = new FakeDialog(handlers)
-  const GlkOte = new CheapGlkOte(handlers)
+  const Dialog = new FakeDialog(handlers, loggers)
+  const GlkOte = new CheapGlkOte(handlers, loggers)
 
   const sendFn = GlkOte.sendFn.bind(GlkOte)