The first working beta version

3 files changed, 199 insertions, 59 deletions

diff --git a/README.md b/README.md
index 583551a..1745d2c 100644
--- a/README.md
+++ b/README.md
@@ -7,26 +7,32 @@
 
 Simple and fast work with the Docker container.
 
+It uses the library
+[dockerode](https://github.com/apocas/dockerode).
+
 ## Installation
 ```bash
 npm install --save simple-container
 ```
 
 ## Using
-A simple example:
+A simple example that creates and starts a container:
 ```JavaScript
-import Container from 'simple-container';
-
-var container = new Container();
+import Containers from 'simple-container';
 
-/* Create the container */
-container.create('hello-world:latest');
+var containers = new Containers();
 
-/* Start the container */
-container.start();
+containers.create('postgres:alpine').then(container => {
+    console.info(`The ${container.id} container was created.`);
+    start(container);
+});
 
-/* Stop and destroy the container */
-container.destroy();
+/* Run the created container */
+function start(container) {
+    container.start().then(() => {
+        console.info(`The ${container.id} container is running.`);
+    });
+}
 ```
 
 ### Remote connection
@@ -34,7 +40,7 @@ By default, the local service is used.
 
 For example, if you want to use connection settings:
 ```JavaScript
-var container = new Container({
+var containers = new Containers({
     host: '127.0.0.1',
     port: 3000
 });
@@ -48,12 +54,12 @@ You can create a container in two ways.
 
 A simple way - to specify the name of the image:
 ```JavaScript
-container.create('hello-world:latest');
+containers.create('hello-world:latest');
 ```
 
 Another way - to provide an object with parameters:
 ```JavaScript
-container.create({
+containers.create({
     Image: 'postgres:alpine',
     Env: ['POSTGRES_PASSWORD = password'],
     Ports: [{
@@ -77,7 +83,7 @@ var auth = {
     serveraddress: 'https://index.docker.io/v1'
 };
 
-container.create({
+containers.create({
     Image: 'project:latest',
     authconfig: auth
 });
@@ -87,11 +93,11 @@ Details in
 [the documentation](https://github.com/apocas/dockerode#pull-from-private-repos).
 
 ## Debugging
-Use the `DEBUG` variable with the `container` option.
+Use the `DEBUG` variable with the `containers` option.
 
 Result of output:
 ```bash
-$ DEBUG="container" node ./example.js
+$ DEBUG="containers" node ./example.js
   container { status: 'Pulling from library/postgres', id: 'alpine' } +0ms
   container { status: 'Already exists',
   container   progressDetail: {},
@@ -104,7 +110,7 @@ $ DEBUG="container" node ./example.js
 
 Or redefine the function to your own:
 ```JavaScript
-container.debug = function() {
+containers.debug = function() {
     var args = Array.prototype.slice.call(arguments);
     /* Debugger code */
 }
diff --git a/package.json b/package.json
index c95c1e2..a8d454b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "simple-container",
-    "version": "0.0.0-alpha.1",
+    "version": "0.0.0-beta.1",
     "description": "Simple and fast work with the Docker container",
     "homepage": "https://github.com/valentineus/simple-container",
     "license": "MIT",
@@ -26,7 +26,6 @@
         "mocha": "^4.0.0"
     },
     "dependencies": {
-        "ancient-funicular": "^3.0.0",
         "debug": "^3.1.0",
         "dockerode": "^2.5.1"
     },
diff --git a/src/lib/index.js b/src/lib/index.js
index 7196ec6..9e86cc7 100644
--- a/src/lib/index.js
+++ b/src/lib/index.js
@@ -1,4 +1,3 @@
-import { Item } from 'ancient-funicular';
 import createDebug from 'debug';
 import Docker from 'dockerode';
 import { statSync } from 'fs';
@@ -6,14 +5,12 @@ import { statSync } from 'fs';
 /**
  * @class Container
  */
-export default class Container extends Item {
+export default class Containers {
     /**
      * @constructs Container
      * @param {Object=} [options] - Service connection settings
      */
     constructor(options) {
-        super();
-
         /**
          * @protected
          * @type {Object}
@@ -26,11 +23,11 @@ export default class Container extends Item {
             this._docker = new Docker(options);
         }
         else {
-            var socket = process.env.DOCKER_SOCKET || '/var/run/docker.sock';
+            var socket = this._getSocket();
             var stats = statSync(socket);
 
             if (!stats.isSocket()) {
-                throw new Error('Local service is not found.');
+                throw new Error('');
             }
 
             this._docker = new Docker({
@@ -41,14 +38,15 @@ export default class Container extends Item {
 
     /**
      * @protected
-     * @param {Object|String} options - Container parameters
-     * @description Creates and registers a container in the system.
+     * @param {String|Object} options - The name of the image or options
+     * @returns {Promise} Returns the container object
+     * @description Creates a container by options or name, returning the management interface.
      */
     create(options) {
         var self = this;
 
         if (!self._isString(options) && !self._isObject(options)) {
-            throw new Error('The variable \'options\' is not correct.');
+            throw new Error('');
         }
 
         if (self._isString(options)) {
@@ -56,42 +54,190 @@ export default class Container extends Item {
             options = { Image };
         }
 
-        self._pullImage(options.Image, (error) => {
-            self._handlerError(error);
-            self._createContainer(options);
+        return new Promise((resolve, reject) => {
+            self._getImage(options.Image, (error) => {
+                if (error) {
+                    reject(error);
+                }
+
+                self._createContainer(options, (error, container) => {
+                    if (error) {
+                        reject(error);
+                    }
+
+                    resolve(container);
+                });
+            });
         });
     }
 
     /**
      * @protected
-     * @description Stops and destroys the container.
+     * @param {String=} [id] - Container ID
+     * @returns {Promise} Returns the container or container object
+     * @description Returns the container management interface.
      */
-    destroy() {}
+    get(id) {
+        var self = this;
+
+        if (id && !self._isString(id)) {
+            throw new Error('');
+        }
+
+        return new Promise((resolve, reject) => {
+            self._getContainers((error, list) => {
+                if (error) {
+                    reject(error);
+                }
+
+                if (self._isString(id)) {
+                    self._findContainer(list, id, (result) => {
+                        resolve(self._getContainer(result.Id));
+                    });
+                }
+                else {
+                    self._createListContainers(list, (result) => {
+                        resolve(result);
+                    });
+                }
+            });
+        });
+    }
 
     /**
      * @protected
-     * @param {String} image - Name of the image
-     * @param {Function} callback - Called function
-     * @description Pulls out the image of the container.
+     * @param {String=} [id] - Container ID
+     * @returns {Promise} Returns the container or container object
+     * @description Searches in existing containers.
      */
-    _pullImage(image, callback) {
+    info(id) {
         var self = this;
-        self._docker.pull(image).then(stream => {
-            self._docker.modem.followProgress(stream, callback, self.debug);
-        }).catch(error => self._handlerError(error));
+
+        if (id && !self._isString(id)) {
+            throw new Error('');
+        }
+
+        return new Promise((resolve, reject) => {
+            self._getContainers((error, list) => {
+                if (error) {
+                    reject(error);
+                }
+
+                if (self._isString(id)) {
+                    self._findContainer(list, id, (result) => {
+                        resolve(result);
+                    });
+                }
+                else {
+                    self._createInformationList(list, (result) => {
+                        resolve(result);
+                    });
+                }
+            });
+        });
+    }
+
+    /**
+     * @protected
+     * @param {Object} options - Settings created by the container
+     * @param {Function} callback - Callback after creation
+     * @description Creates a container and returns its interface.
+     */
+    _createContainer(options, callback) {
+        this._docker.createContainer(options, (error, container) => {
+            callback(error, container);
+        });
+    }
+
+    /**
+     * @protected
+     * @param {Array} list - List of containers
+     * @param {Function} callback - Callback after building the list
+     * @description Creates a list of containers for the user.
+     */
+    _createInformationList(list, callback) {
+        callback(list.reduce((result, item) => {
+            result[item.Id] = item;
+            return result;
+        }, {}));
     }
 
     /**
      * @protected
-     * @param {Object} options - Container settings
-     * @description Creating a container and registering management.
+     * @param {Array} list - List of containers
+     * @param {Function} callback - Callback after building the list
+     * @description Creates a list of container interfaces.
      */
-    _createContainer(options) {
+    _createListContainers(list, callback) {
         var self = this;
-        self._docker.createContainer(options).then(container => {
-            /* @todo Class registration */
-            self.debug(container);
-        }).catch(error => self._handlerError(error));
+
+        callback(list.reduce((result, item) => {
+            result[item.Id] = self._getContainer(item.Id);
+            return result;
+        }, {}));
+    }
+
+    /**
+     * @protected
+     * @returns {String} Socket
+     * @description Getting the system socket.
+     */
+    _getSocket() {
+        return process.env.DOCKER_SOCKET || '/var/run/docker.sock';
+    }
+
+    /**
+     * @protected
+     * @param {Function} callback - Callback after receiving the list
+     * @description Getting a list of all available containers in the system.
+     */
+    _getContainers(callback) {
+        this._docker.listContainers({ all: true }, (error, list) => {
+            callback(error, list);
+        });
+    }
+
+    /**
+     * @protected
+     * @param {String} id - Container ID
+     * @returns {Object} Container interface
+     * @description Getting the interface of the container.
+     */
+    _getContainer(id) {
+        return this._docker.getContainer(id);
+    }
+
+    /**
+     * @protected
+     * @param {String} image - The name of the image
+     * @param {Function} callback - Callback after download
+     * @description Load the image needed for the container.
+     */
+    _getImage(image, callback) {
+        var self = this;
+
+        self._docker.pull(image, (error, stream) => {
+            if (error) {
+                callback(error);
+            }
+
+            self._docker.modem.followProgress(stream, callback, self.debug);
+        });
+    }
+
+    /**
+     * @protected
+     * @param {Array} list - List of containers
+     * @param {String} id - Container ID
+     * @param {Function} callback - Callback with the search result
+     * @description Search for a specific container from the general list of containers.
+     */
+    _findContainer(list, id, callback) {
+        list.find(item => {
+            if (item.Id == id) {
+                callback(item);
+            }
+        });
     }
 
     /**
@@ -115,23 +261,12 @@ export default class Container extends Item {
     }
 
     /**
-     * @protected
-     * @param {*} error - A string with an error
-     * @description Handles the error if present.
-     */
-    _handlerError(error) {
-        if (error) {
-            throw new Error(error);
-        }
-    }
-
-    /**
      * @param {*} Any variables
      * @description A simple debugger.
      */
     debug() {
         var args = Array.prototype.slice.call(arguments);
-        var debug = createDebug('container');
+        var debug = createDebug('containers');
         debug.apply(null, args);
     }
 }
\ No newline at end of file