From 1dc3f28d4fe1dbd650c3a996b5b05c26908efe9d Mon Sep 17 00:00:00 2001
From: Stepan Parunashvili <stepan.p@gmail.com>
Date: Tue, 9 Aug 2016 16:58:44 -0700
Subject: [PATCH] [wit] support for different environments (#71)

---
 index.js           |  5 +++--
 lib/config.js      |  5 +++++
 lib/interactive.js | 33 +++++++++++++++++++++++++++++++++
 lib/wit.js         | 46 ++++++++--------------------------------------
 package.json       |  3 ++-
 5 files changed, 51 insertions(+), 41 deletions(-)
 create mode 100644 lib/config.js
 create mode 100644 lib/interactive.js

diff --git a/index.js b/index.js
index 4c59a01..2fcc76e 100644
--- a/index.js
+++ b/index.js
@@ -1,4 +1,5 @@
 module.exports = {
-  log: require('./lib/log.js'),
-  Wit: require('./lib/wit.js').Wit,
+  log: require('./lib/log'),
+  Wit: require('./lib/wit'),
+  interactive: require('./lib/interactive')
 }
diff --git a/lib/config.js b/lib/config.js
new file mode 100644
index 0000000..739c267
--- /dev/null
+++ b/lib/config.js
@@ -0,0 +1,5 @@
+module.exports = {
+  DEFAULT_API_VERSION: '20160516',
+  DEFAULT_MAX_STEPS: 5,
+  DEFAULT_WIT_URL: 'https://api.wit.ai'
+};
diff --git a/lib/interactive.js b/lib/interactive.js
new file mode 100644
index 0000000..8e7e49a
--- /dev/null
+++ b/lib/interactive.js
@@ -0,0 +1,33 @@
+const {DEFAULT_MAX_STEPS} = require('./config');
+const logger = require('./log.js');
+const readline = require('readline');
+const uuid = require('node-uuid');
+
+module.exports = (wit, initContext, maxSteps) => {
+  let context = typeof initContext === 'object' ? initContext : {};
+  const sessionId = uuid.v1();
+
+  const steps = maxSteps ? maxSteps : DEFAULT_MAX_STEPS;
+  const rl = readline.createInterface({
+    input: process.stdin,
+    output: process.stdout,
+  });
+  rl.setPrompt('> ');
+  const prompt = () => {
+    rl.prompt();
+    rl.write(null, {ctrl: true, name: 'e'});
+  };
+  prompt();
+  rl.on('line', (line) => {
+    line = line.trim();
+    if (!line) {
+      return prompt();
+    }
+    wit.runActions(sessionId, line, context, steps)
+    .then((ctx) => {
+      context = ctx;
+      prompt();
+    })
+    .catch(err => console.error(err))
+  });
+};
diff --git a/lib/wit.js b/lib/wit.js
index d376cdd..370204f 100644
--- a/lib/wit.js
+++ b/lib/wit.js
@@ -1,13 +1,14 @@
 'use strict';
 
-const fetch = require('node-fetch');
-const readline = require('readline');
-const uuid = require('node-uuid');
+const {
+  DEFAULT_API_VERSION,
+  DEFAULT_MAX_STEPS,
+  DEFAULT_WIT_URL
+} = require('./config');
+const fetch = require('isomorphic-fetch');
 const log = require('./log');
+const uuid = require('node-uuid');
 
-const DEFAULT_API_VERSION = '20160516';
-const DEFAULT_MAX_STEPS = 5;
-const DEFAULT_WIT_URL = 'https://api.wit.ai';
 const learnMore = 'Learn more at https://wit.ai/docs/quickstart';
 
 function Wit(opts) {
@@ -127,35 +128,6 @@ function Wit(opts) {
       continueRunActions(sessionId, message, context, steps)
     );
   };
-
-  this.interactive = (initContext, maxSteps) => {
-    if (!actions) throwMustHaveActions();
-    let context = typeof initContext === 'object' ? initContext : {};
-    const sessionId = uuid.v1();
-    const steps = maxSteps ? maxSteps : DEFAULT_MAX_STEPS;
-    const rl = readline.createInterface({
-      input: process.stdin,
-      output: process.stdout,
-    });
-    rl.setPrompt('> ');
-    const prompt = () => {
-      rl.prompt();
-      rl.write(null, {ctrl: true, name: 'e'});
-    };
-    prompt();
-    rl.on('line', (line) => {
-      line = line.trim();
-      if (!line) {
-        return prompt();
-      }
-      this.runActions(sessionId, line, context, steps)
-      .then((ctx) => {
-        context = ctx;
-        prompt();
-      })
-      .catch(logger.error)
-    });
-  };
 };
 
 const makeWitResponseHandler = (logger, endpoint) => {
@@ -263,6 +235,4 @@ const clone = (obj) => {
   }
 };
 
-module.exports = {
-  Wit,
-};
+module.exports = Wit;
diff --git a/package.json b/package.json
index 7c70a5e..5ba6c7a 100644
--- a/package.json
+++ b/package.json
@@ -18,10 +18,11 @@
   "repository": "https://github.com/wit-ai/node-wit",
   "author": "The Wit Team <help@wit.ai>",
   "dependencies": {
+    "isomorphic-fetch": "^2.2.1",
     "node-fetch": "^1.5.1",
     "node-uuid": "^1.4.7"
   },
   "engines": {
-    "node" : ">=4.0.0"
+    "node": ">=4.0.0"
   }
 }