// Path: src/main/java/com/hyurumi/fb_bot_boilerplate/Main.java
// public class Main {
//     public static  String sAccessToken;
//     private static String sValidationToken;
//     public static final String END_POINT;
//     public static final MediaType JSON;
//     private static final Random sRandom;
//     private static final Gson GSON;
//     private static final String PORT = "8181";
// 
//     static {
//         JSON = MediaType.parse("application/json; charset=utf-8");
//         END_POINT = "https://graph.facebook.com/v2.6/me/messages";
//         GSON = new Gson();
//         sRandom = new Random();
//         sAccessToken = "EAAC6CoQsmOQBALDgvNuFAuEytTOZBjrUJVUodqGZBF620fInZByyBDqfx4A6XvDgnxIgXGZAX1nv2WJJSKVxolgPeNF2kdbGqvdp9h6wtGMCwecryr5bL4G7SPPbBWmbl1kWruiPIWJkdoed9cdgTyO5BrfZAzgWIdsmFK9dZCWgZDZD";//System.getenv("ACCESS_TOKEN");
//         sValidationToken = "EAAC6CoQsmOQBALDgvNuFAuEytTOZBjrUJVUodqGZBF620fInZByyBDqfx4A6XvDgnxIgXGZAX1nv2WJJSKVxolgPeNF2kdbGqvdp9h6wtGMCwecryr5bL4G7SPPbBWmbl1kWruiPIWJkdoed9cdgTyO5BrfZAzgWIdsmFK9dZCWgZDZD";//System.getenv("VALIDATION_TOKEN");
//     }
// 
//     public static void main(String[] args) {
// 
//         port(Integer.valueOf(PORT)); //System.getenv("PORT")
// 
//         get("/webhook", (request, response) -> {
//             if (request.queryMap("hub.verify_token").value().equals(sValidationToken)) {
//                 return request.queryMap("hub.challenge").value();
//             }
//             return "Error, wrong validation token";
//         });
// 
//         post("/webhook", (request, response) -> {
//             ReceivedMessage receivedMessage = GSON.fromJson(request.body(), ReceivedMessage.class);
//             List<Messaging> messagings = receivedMessage.entry.get(0).messaging;
//             for (Messaging messaging : messagings) {
//                 String senderId = messaging.sender.id;
//                 if (messaging.message !=null) {
//                     // Receiving text message
//                     switch (sRandom.nextInt(4)){
//                         case 0:
//                             if (messaging.message.text != null)
//                                 Message.Text(messaging.message.text).sendTo(senderId);
//                             else
//                                 sendSampleGenericMessage(senderId);
//                             break;
//                         case 1:
//                             Message.Image("https://unsplash.it/764/400?image=200").sendTo(senderId);
//                             break;
//                         case 2:
//                             sendSampleGenericMessage(senderId);
//                             break;
//                         default:
//                             sendSamplePostBackMessage(senderId);
//                             break;
//                     }
// 
//                 } else if (messaging.postback != null) {
//                     // Receiving postback message
//                     if (messaging.postback.payload == Action.ACTION_A) {
//                         Message.Text("Action A").sendTo(senderId);
//                     }else {
//                         Message.Text("Action B").sendTo(senderId);
//                     }
//                 } else if (messaging.delivery != null) {
//                     // when the message is delivered, this webhook will be triggered.
//                 } else {
//                     // sticker may not be supported for now.
//                     System.out.println(request.body());
//                 }
//             }
//             System.out.println(request.body());
//             return "";
//         });
//     }
// 
//     static private void sendSamplePostBackMessage(String senderId) throws Exception {
//         Message message = Message.Button("This is a postback message; please choose the action below");
//         message.addButton(Button.Postback("action A", Action.ACTION_A));
//         message.addButton(Button.Postback("action B", Action.ACTION_B));
//         message.addButton(Button.Url("open Google", "https://google.com"));
//         message.sendTo(senderId);
//     }
// 
//     static private void sendSampleGenericMessage(String senderId) throws Exception {
//         Message message = Message.Generic();
//         Element element = new Element("Generic Message Sample", "https://unsplash.it/764/400?image=400", "subtitle");
//         message.addElement(element);
//         element = new Element("Yay Yay", "https://unsplash.it/764/400?image=500", "subtitle");
//         element.addButton(Button.Postback("action A", Action.ACTION_A));
//         element.addButton(Button.Url("jump to FB", "https://facebook.com/"));
//         message.addElement(element);
//         message.sendTo(senderId);
//     }
// }
// 
// Path: src/main/java/com/hyurumi/fb_bot_boilerplate/Main.java
// public static  String sAccessToken;


import com.google.gson.Gson;
import com.google.gson.annotations.SerializedName;
import com.hyurumi.fb_bot_boilerplate.Main;
import com.hyurumi.fb_bot_boilerplate.models.common.Recipient;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import java.io.IOException;
import static com.hyurumi.fb_bot_boilerplate.Main.sAccessToken;
import java.util.Arrays;
import java.util.List;
    
    public boolean addElement(Element element) {
        return attachment.addElement(element);
    }

    public boolean addButton(Button button) {
        return attachment.addButton(button);
    }

    public Response sendTo(String recipientId) throws IOException {

        RequestBody body = RequestBody.create(Main.JSON, GSON.toJson(new MessageWrapper(recipientId, this)));
        Request request = new Request.Builder()
                .url(Main.END_POINT + "?access_token=" + sAccessToken)
                .header("Content-Type", "application/json; charset=UTF-8")
                .post(body)
                .build();
        okhttp3.Response response = HTTP_CLIENT.newCall(request).execute();
        final int code = response.code();
        Response returnValue = null;
        if (code == 200) {
            System.out.println("WORK!");
            returnValue = GSON.fromJson(response.body().string(), Response.class);
        }else {
            System.out.println("ERROR: " + response.body().string());
        }
        response.body().close();
        return returnValue;
    }

// Path: src/main/java/com/hyurumi/fb_bot_boilerplate/Main.java
// public class Main {
//     public static  String sAccessToken;
//     private static String sValidationToken;
//     public static final String END_POINT;
//     public static final MediaType JSON;
//     private static final Random sRandom;
//     private static final Gson GSON;
//     private static final String PORT = "8181";
// 
//     static {
//         JSON = MediaType.parse("application/json; charset=utf-8");
//         END_POINT = "https://graph.facebook.com/v2.6/me/messages";
//         GSON = new Gson();
//         sRandom = new Random();
//         sAccessToken = "EAAC6CoQsmOQBALDgvNuFAuEytTOZBjrUJVUodqGZBF620fInZByyBDqfx4A6XvDgnxIgXGZAX1nv2WJJSKVxolgPeNF2kdbGqvdp9h6wtGMCwecryr5bL4G7SPPbBWmbl1kWruiPIWJkdoed9cdgTyO5BrfZAzgWIdsmFK9dZCWgZDZD";//System.getenv("ACCESS_TOKEN");
//         sValidationToken = "EAAC6CoQsmOQBALDgvNuFAuEytTOZBjrUJVUodqGZBF620fInZByyBDqfx4A6XvDgnxIgXGZAX1nv2WJJSKVxolgPeNF2kdbGqvdp9h6wtGMCwecryr5bL4G7SPPbBWmbl1kWruiPIWJkdoed9cdgTyO5BrfZAzgWIdsmFK9dZCWgZDZD";//System.getenv("VALIDATION_TOKEN");
//     }
// 
//     public static void main(String[] args) {
// 
//         port(Integer.valueOf(PORT)); //System.getenv("PORT")
// 
//         get("/webhook", (request, response) -> {
//             if (request.queryMap("hub.verify_token").value().equals(sValidationToken)) {
//                 return request.queryMap("hub.challenge").value();
//             }
//             return "Error, wrong validation token";
//         });
// 
//         post("/webhook", (request, response) -> {
//             ReceivedMessage receivedMessage = GSON.fromJson(request.body(), ReceivedMessage.class);
//             List<Messaging> messagings = receivedMessage.entry.get(0).messaging;
//             for (Messaging messaging : messagings) {
//                 String senderId = messaging.sender.id;
//                 if (messaging.message !=null) {
//                     // Receiving text message
//                     switch (sRandom.nextInt(4)){
//                         case 0:
//                             if (messaging.message.text != null)
//                                 Message.Text(messaging.message.text).sendTo(senderId);
//                             else
//                                 sendSampleGenericMessage(senderId);
//                             break;
//                         case 1:
//                             Message.Image("https://unsplash.it/764/400?image=200").sendTo(senderId);
//                             break;
//                         case 2:
//                             sendSampleGenericMessage(senderId);
//                             break;
//                         default:
//                             sendSamplePostBackMessage(senderId);
//                             break;
//                     }
// 
//                 } else if (messaging.postback != null) {
//                     // Receiving postback message
//                     if (messaging.postback.payload == Action.ACTION_A) {
//                         Message.Text("Action A").sendTo(senderId);
//                     }else {
//                         Message.Text("Action B").sendTo(senderId);
//                     }
//                 } else if (messaging.delivery != null) {
//                     // when the message is delivered, this webhook will be triggered.
//                 } else {
//                     // sticker may not be supported for now.
//                     System.out.println(request.body());
//                 }
//             }
//             System.out.println(request.body());
//             return "";
//         });
//     }
// 
//     static private void sendSamplePostBackMessage(String senderId) throws Exception {
//         Message message = Message.Button("This is a postback message; please choose the action below");
//         message.addButton(Button.Postback("action A", Action.ACTION_A));
//         message.addButton(Button.Postback("action B", Action.ACTION_B));
//         message.addButton(Button.Url("open Google", "https://google.com"));
//         message.sendTo(senderId);
//     }
// 
//     static private void sendSampleGenericMessage(String senderId) throws Exception {
//         Message message = Message.Generic();
//         Element element = new Element("Generic Message Sample", "https://unsplash.it/764/400?image=400", "subtitle");
//         message.addElement(element);
//         element = new Element("Yay Yay", "https://unsplash.it/764/400?image=500", "subtitle");
//         element.addButton(Button.Postback("action A", Action.ACTION_A));
//         element.addButton(Button.Url("jump to FB", "https://facebook.com/"));
//         message.addElement(element);
//         message.sendTo(senderId);
//     }
// }
// 
// Path: src/main/java/com/hyurumi/fb_bot_boilerplate/Main.java
// public static  String sAccessToken;


// Path: src/main/java/com/hyurumi/fb_bot_boilerplate/models/send/Message.java
import com.google.gson.Gson;
import com.google.gson.annotations.SerializedName;
import com.hyurumi.fb_bot_boilerplate.Main;
import com.hyurumi.fb_bot_boilerplate.models.common.Recipient;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import java.io.IOException;
import static com.hyurumi.fb_bot_boilerplate.Main.sAccessToken;
import java.util.Arrays;
import java.util.List;

    
    public boolean addElement(Element element) {
        return attachment.addElement(element);
    }

    public boolean addButton(Button button) {
        return attachment.addButton(button);
    }

    public Response sendTo(String recipientId) throws IOException {

        RequestBody body = RequestBody.create(Main.JSON, GSON.toJson(new MessageWrapper(recipientId, this)));
        Request request = new Request.Builder()
                .url(Main.END_POINT + "?access_token=" + sAccessToken)
                .header("Content-Type", "application/json; charset=UTF-8")
                .post(body)
                .build();
        okhttp3.Response response = HTTP_CLIENT.newCall(request).execute();
        final int code = response.code();
        Response returnValue = null;
        if (code == 200) {
            System.out.println("WORK!");
            returnValue = GSON.fromJson(response.body().string(), Response.class);
        }else {
            System.out.println("ERROR: " + response.body().string());
        }
        response.body().close();
        return returnValue;
    }

    class MessageWrapper {