Basic functionality.

lib/app.js

@@ -36,5 +36,6 @@ app.use(flatiron.plugins.cli, {
 app.cmd(/version/, commands.version);
 app.cmd(/ls/, commands.list);
 app.cmd(/check (.+)/, commands.check);
+app.cmd(/undo (.+)/, commands.undo);
 app.cmd(/rm (.+)/, commands.delete);
 app.cmd(/(.+)/, commands.add);

lib/commands.js

@@ -14,8 +14,10 @@ var commands = module.exports;
 
 /**
  * Print alias.
+ * 
+ * @api private
  */
-var print = console.log;
+commands.print = console.log;
 
 /**
  * The application.
@@ -31,6 +33,13 @@ var app = require('./app');
  */
 var storage = require('./storage');
 
+/**
+ * Formatter.
+ * 
+ * @type {Object}
+ */
+var formatter = require('./formatter');
+
 /**
  * Prints current version.
  * 
@@ -40,18 +49,100 @@ commands.version = function() {
   print(require('../package.json').version);
 };
 
+/**
+ * Lists todo items.
+ * 
+ * @api public
+ */
 commands.list = function() {
-
+  var out = [];
+  storage.get('items', function(err, items) {
+    items || (items = []);
+    for (var i = -1, len = items.length; ++i < len;) {
+      if (!app.argv.all && items[i].done) continue;
+      out.push(formatter.format(items[i], i + 1));
+    }
+
+    out.push('') && out.unshift('');
+    out.map(function(line) {
+      commands.print(line);
+    });
+  });
 };
 
-commands.check = function(item) {
-
+/**
+ * Marks an item as done.
+ * 
+ * @param {String} Number.
+ * @api public
+ */
+commands.check = function(num) {
+  num = +num - 1;
+  commands.toggle(num, true);
 };
 
-commands.delete = function(item) {
-
+/**
+ * Undo a check for item.
+ * 
+ * @param {String} Number.
+ * @api public
+ */
+commands.undo = function(num) {
+  num = +num - 1;
+  commands.toggle(num, false);
+};
+
+/**
+ * Toggles an item state.
+ * 
+ * @param {Number} Item index.
+ * @param {Boolean} State.
+ * @api private
+ */
+commands.toggle = function(num, state) {
+  storage.get('items', function(err, items) {
+    items || (items = []);
+    if (!items[num]) throw new Error('There is no todo item with number ' + num + 1);
+    items[num].done = state;
+    storage.set('items', items, function() {
+      storage.save(function(err) {
+        if (err) throw err;
+      });
+    });
+  });
+};
+
+/**
+ * Deletes an item.
+ * 
+ * @param {String} Todo item number.
+ * @api public
+ */
+commands.delete = function(num) {
+  num = +num - 1;
+  storage.get('items', function(err, items) {
+    items || (items = []);
+    items = items.splice(num, 1);
+    storage.save(function(err) {
+      if (err) throw err;
+    });
+  });
 };
 
+/**
+ * Adds new item to the todo list.
+ * 
+ * @param {String} Item description.
+ * @api public
+ */
 commands.add = function(item) {
-  console.log(item);
+  storage.get('items', function(err, items) {
+    items || (items = []);
+    items.push({ text: item, done: false });
+    storage.set('items', items, function(err) {
+      storage.save(function(err) {
+        if (err) throw err;
+      });
+    });
+  });
 };

lib/formatter.js

@@ -0,0 +1,35 @@
+/*!
+ * todo - Todos in the CLI like what.
+ * 
+ * Veselin Todorov <hi@vesln.com>
+ * MIT License.
+ */
+
+/**
+ * Module dependencies.
+ */
+var color = require('color');
+
+/**
+ * Formatter namespace.
+ * 
+ * @type {Object}
+ */
+var formatter = module.exports;
+
+/**
+ * Formats an item.
+ * 
+ * @param {Object} Todo item.
+ * @param {Number} Item number.
+ * @returns {String}
+ * @api public
+ */
+formatter.format = function(item, num) {
+  var state = item.done ? '√'.green : '✖'.red ;
+
+  return '     ' 
+    +  '#' + num + '  ' 
+    + state + '  ' 
+    + item.text;
+};

package.json

@@ -7,6 +7,7 @@
   , "dependencies": {
       "flatiron": "~0.1.7"
     , "storr": "0.0.1"
+    , "color": "0.4.1"
   }
   , "devDependencies": {
       "mocha": "0.3.3"