From f448e9a61f46afd94e66cb20d2423f3f069726f2 Mon Sep 17 00:00:00 2001
From: Tom Kornblit <tom.kornblit@gmail.com>
Date: Tue, 12 Jul 2016 00:11:59 -0400
Subject: [PATCH] Added Facebook config API methods.

---
 lib/Facebook.js | 181 +++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 162 insertions(+), 19 deletions(-)

diff --git a/lib/Facebook.js b/lib/Facebook.js
index 1d4ecdac6..f16c07616 100644
--- a/lib/Facebook.js
+++ b/lib/Facebook.js
@@ -52,14 +52,14 @@ function Facebookbot(configuration) {
             facebook_message.access_token = configuration.access_token;
 
             request({
-                method: "POST",
-                json: true,
-                headers: {
-                    "content-type": "application/json",
+                    method: "POST",
+                    json: true,
+                    headers: {
+                        "content-type": "application/json",
+                    },
+                    body: facebook_message,
+                    uri: 'https://graph.facebook.com/v2.6/me/messages'
                 },
-                body: facebook_message,
-                uri: 'https://graph.facebook.com/v2.6/me/messages'
-            },
                 function(err, res, body) {
 
 
@@ -215,6 +215,149 @@ function Facebookbot(configuration) {
         return facebook_botkit;
     };
 
+    facebook_botkit.persistentMenu = function(cb) {
+
+        var buttons = configuration.persistent_menu && configuration.persistent_menu.buttons;
+
+        if (buttons) {
+            request({
+                uri: "https://graph.facebook.com/v2.6/me/thread_settings?access_token=" + configuration.access_token,
+                json: true,
+                method: "POST",
+                headers: {
+                    "content-type": "application/json",
+                },
+                body: {
+                    "setting_type": "call_to_actions",
+                    "thread_state": "existing_thread",
+                    "call_to_actions": .map(function(button) {
+                        return {
+                            "type": "postback",
+                            "title": button.title,
+                            "payload": button.payload
+                        }
+                    }): []
+                }
+            }, function(err, res, body) {
+
+                if (err) {
+                    facebook_botkit.error(err);
+                    cb(err);
+                } else {
+                    facebook_botkit.log(body.result);
+                    cb();
+                }
+
+            });
+        } else {
+            return cb();
+        }
+
+    };
+
+    facebook_botkit.greetingText = function(cb) {
+
+        var greetingText = configuration.greeting && configuration.greeting.text;
+
+        if (greetingText) {
+
+            request({
+                uri: "https://graph.facebook.com/v2.6/me/thread_settings?access_token=" + configuration.access_token,
+                json: true,
+                method: "POST",
+                headers: {
+                    "content-type": "application/json",
+                },
+                body: {
+                    "setting_type": "greeting",
+                    "greeting": {
+                        "text": configuration.greeting.text
+                    }
+                }
+            }, function(err, res, body) {
+
+                if (err) {
+                    facebook_botkit.error(err);
+                    return cb(err);
+                } else {
+                    facebook_botkit.log(body.result);
+                    return cb();
+                }
+
+            });
+
+        } else {
+            return cb();
+        }
+
+    };
+
+    facebook_botkit.greetingPayload = function(cb) {
+
+        var payload = configuration.greeting && configuration.greeting.payload;
+
+        if (payload) {
+
+            request({
+                uri: "https://graph.facebook.com/v2.6/me/thread_settings?access_token=" + configuration.access_token,
+                json: true,
+                method: "POST",
+                headers: {
+                    "content-type": "application/json",
+                },
+                body: {
+                    "setting_type": "call_to_actions",
+                    "thread_state": "new_thread",
+                    "call_to_actions": [{
+                        "payload": payload
+                    }]
+                }
+            }, function(err, res, body) {
+
+                if (err) {
+                    facebook_botkit.error(err);
+                    return cb(err);
+                } else {
+                    facebook_botkit.log(body.result);
+                    return cb && cb();
+                }
+
+            });
+        } else {
+            return cb()
+        }
+
+    };
+
+    facebook_botkit.reactivateFacebook = function(cb) {
+
+        request.post("https://graph.facebook.com/v2.6/me/subscribed_apps?access_token=" + configuration.access_token,
+            function(err, res, body) {
+
+                if (err) {
+                    facebook_botkit.error(err);
+                    return cb && cb(err);
+                } else {
+
+                    var isSuccess = JSON.parse(body).success;
+
+                    if (isSuccess) {
+
+                        facebook_botkit.log("Successfully subscribed to Facebook events");
+
+                        return cb && cb();
+
+                    } else {
+                        facebook_botkit.error("Could not subscribe to page messages.");
+                        return cb("Could not subscribe to page messages.");
+                    }
+
+                }
+
+            });
+
+    };
+
     facebook_botkit.setupWebserver = function(port, cb) {
 
         if (!port) {
@@ -224,7 +367,7 @@ function Facebookbot(configuration) {
             throw new Error('Specified port is not a valid number');
         }
 
-        var static_dir =  __dirname + '/public';
+        var static_dir = __dirname + '/public';
 
         if (facebook_botkit.config && facebook_botkit.config.webserver && facebook_botkit.config.webserver.static_dir)
             static_dir = facebook_botkit.config.webserver.static_dir;
@@ -233,7 +376,9 @@ function Facebookbot(configuration) {
 
         facebook_botkit.webserver = express();
         facebook_botkit.webserver.use(bodyParser.json());
-        facebook_botkit.webserver.use(bodyParser.urlencoded({ extended: true }));
+        facebook_botkit.webserver.use(bodyParser.urlencoded({
+            extended: true
+        }));
         facebook_botkit.webserver.use(express.static(static_dir));
 
         var server = facebook_botkit.webserver.listen(
@@ -241,19 +386,17 @@ function Facebookbot(configuration) {
             function() {
                 facebook_botkit.log('** Starting webserver on port ' +
                     facebook_botkit.config.port);
-                if (cb) { cb(null, facebook_botkit.webserver); }
+                if (cb) {
+                    cb(null, facebook_botkit.webserver);
+                }
             });
 
 
-        request.post('https://graph.facebook.com/me/subscribed_apps?access_token=' + configuration.access_token,
-            function(err, res, body) {
-                if (err) {
-                    facebook_botkit.log('Could not subscribe to page messages');
-                } else {
-                    facebook_botkit.debug('Successfully subscribed to Facebook events:', body);
-                    facebook_botkit.startTicking();
-                }
-            });
+        facebook_botkit.reactivateFacebook();
+        facebook_botkit.greetingText()
+        facebook_botkit.greetingPayload();
+        facebook_botkit.persistentMenu();
+        facebook_botkit.startTicking();
 
         return facebook_botkit;