From c5d62e5529d2fe13f2f0d771727d673095d52c1e Mon Sep 17 00:00:00 2001
From: Rudhra Raveendran <rudytheninja@gmail.com>
Date: Mon, 28 Aug 2017 12:14:48 -0400
Subject: [PATCH] Resolved #97 and #100

---
 index.js     | 38 +++++++++++++++++++++++++++-----------
 package.json |  1 +
 2 files changed, 28 insertions(+), 11 deletions(-)

diff --git a/index.js b/index.js
index 0670a07683..a868365230 100755
--- a/index.js
+++ b/index.js
@@ -4,6 +4,7 @@ require('./src/ImageSequencer');
 sequencer = ImageSequencer({ui: false});
 
 var program = require('commander');
+var readlineSync = require('readline-sync');
 
 function exit(message) {
   console.error(message);
@@ -18,6 +19,9 @@ program
   .option('-op, --opions {object}', 'Options for the step')
   .parse(process.argv);
 
+// Parse step into an array to allow for multiple step.
+program.step = program.step.split(" ");
+
 // User must input an image.
 if(!program.image) exit("Can't read file.")
 
@@ -26,19 +30,19 @@ require('fs').access(program.image, function(err){
   if(err) exit("Can't read file.")
 });
 
-// User must input a step.
-if(!program.step || !sequencer.modulesInfo().hasOwnProperty(program.step))
+// User must input a step. If step exists, check that every step is a valid step.
+if(!program.step || !program.step.every(function(step){return sequencer.modulesInfo().hasOwnProperty(step)}))
   exit("Please name a valid step.");
 
-// If there's no user defined output directory, select a default directory
+// If there's no user defined output directory, select a default directory.
 program.output = program.output || "./output/";
 
-// set sequencer to log module outputs, if any
+// Set sequencer to log module outputs, if any.
 sequencer.setUI({
 
   onComplete: function(step) {
 
-    // get information of outputs
+    // Get information of outputs.
     step.info = sequencer.modulesInfo(step.name);
 
     for (var output in step.info.outputs) {
@@ -49,20 +53,32 @@ sequencer.setUI({
 
 });
 
-// Finally, if everything is alright, load the image, add the step and run the sequencer.
+// Finally, if everything is alright, load the image, add the steps and run the sequencer.
 sequencer.loadImages(program.image,function(){
 
-  // Add the step inputted by the user
-  sequencer.addSteps(program.step);
+  // Iterate through the steps and retrieve their inputs.
+  program.step.forEach(function(step){
+    var options = Object.assign({}, sequencer.modulesInfo(step).inputs);
+
+    // If inputs exists, iterate through them and prompt for values.
+    Object.keys(options).forEach(function(input) {
+        console.log(step + " : " + input + " : " + options[input].desc);
+        var value = readlineSync.question(step + " : " + "Enter a value for " + input + " : ");
+        options[input] = value;
+    });
 
-  // Run the sequencer
+    // Add the step and its options to the sequencer.
+    sequencer.addSteps(step, options);
+  });
+
+  // Run the sequencer.
   sequencer.run(function(){
 
-    // Export all images as binary files
+    // Export all images as binary files.
     sequencer.exportBin(program.output);
 
     console.log("Files will be exported to \""+program.output+"\"");
 
   });
 
-});
+});
\ No newline at end of file
diff --git a/package.json b/package.json
index 9f20ec22dd..a6d70f4196 100644
--- a/package.json
+++ b/package.json
@@ -26,6 +26,7 @@
     "font-awesome": "~4.5.0",
     "jquery": "~2",
     "jsqr": "^0.2.2",
+    "readline-sync": "^1.4.7",
     "urify": "^2.1.0"
   },
   "devDependencies": {