Initial commit

backend/src/@types/express.d.ts

@@ -0,0 +1,5 @@
+declare namespace Express {
+  export interface Request {
+    user: { id: string; profile: string };
+  }
+}

backend/src/@types/qrcode-terminal.d.ts

@@ -0,0 +1 @@
+declare module "qrcode-terminal";

backend/src/__tests__/unit/User/AuthUserService.spec.ts

@@ -0,0 +1,69 @@
+import faker from "faker";
+import AppError from "../../../errors/AppError";
+import AuthUserService from "../../../services/UserServices/AuthUserService";
+import CreateUserService from "../../../services/UserServices/CreateUserService";
+import { disconnect, truncate } from "../../utils/database";
+
+describe("Auth", () => {
+  beforeEach(async () => {
+    await truncate();
+  });
+
+  afterEach(async () => {
+    await truncate();
+  });
+
+  afterAll(async () => {
+    await disconnect();
+  });
+
+  it("should be able to login with an existing user", async () => {
+    const password = faker.internet.password();
+    const email = faker.internet.email();
+
+    await CreateUserService({
+      name: faker.name.findName(),
+      email,
+      password
+    });
+
+    const response = await AuthUserService({
+      email,
+      password
+    });
+
+    expect(response).toHaveProperty("token");
+  });
+
+  it("should not be able to login with not registered email", async () => {
+    try {
+      await AuthUserService({
+        email: faker.internet.email(),
+        password: faker.internet.password()
+      });
+    } catch (err) {
+      expect(err).toBeInstanceOf(AppError);
+      expect(err.statusCode).toBe(401);
+      expect(err.message).toBe("ERR_INVALID_CREDENTIALS");
+    }
+  });
+
+  it("should not be able to login with incorret password", async () => {
+    await CreateUserService({
+      name: faker.name.findName(),
+      email: "mail@test.com",
+      password: faker.internet.password()
+    });
+
+    try {
+      await AuthUserService({
+        email: "mail@test.com",
+        password: faker.internet.password()
+      });
+    } catch (err) {
+      expect(err).toBeInstanceOf(AppError);
+      expect(err.statusCode).toBe(401);
+      expect(err.message).toBe("ERR_INVALID_CREDENTIALS");
+    }
+  });
+});

backend/src/__tests__/unit/User/CreateUserService.spec.ts

@@ -0,0 +1,47 @@
+import faker from "faker";
+import AppError from "../../../errors/AppError";
+import CreateUserService from "../../../services/UserServices/CreateUserService";
+import { disconnect, truncate } from "../../utils/database";
+
+describe("User", () => {
+  beforeEach(async () => {
+    await truncate();
+  });
+
+  afterEach(async () => {
+    await truncate();
+  });
+
+  afterAll(async () => {
+    await disconnect();
+  });
+
+  it("should be able to create a new user", async () => {
+    const user = await CreateUserService({
+      name: faker.name.findName(),
+      email: faker.internet.email(),
+      password: faker.internet.password()
+    });
+
+    expect(user).toHaveProperty("id");
+  });
+
+  it("should not be able to create a user with duplicated email", async () => {
+    await CreateUserService({
+      name: faker.name.findName(),
+      email: "teste@sameemail.com",
+      password: faker.internet.password()
+    });
+
+    try {
+      await CreateUserService({
+        name: faker.name.findName(),
+        email: "teste@sameemail.com",
+        password: faker.internet.password()
+      });
+    } catch (err) {
+      expect(err).toBeInstanceOf(AppError);
+      expect(err.statusCode).toBe(400);
+    }
+  });
+});

backend/src/__tests__/unit/User/DeleteUserService.spec.ts

@@ -0,0 +1,35 @@
+import faker from "faker";
+import AppError from "../../../errors/AppError";
+import CreateUserService from "../../../services/UserServices/CreateUserService";
+import DeleteUserService from "../../../services/UserServices/DeleteUserService";
+import { disconnect, truncate } from "../../utils/database";
+
+describe("User", () => {
+  beforeEach(async () => {
+    await truncate();
+  });
+
+  afterEach(async () => {
+    await truncate();
+  });
+
+  afterAll(async () => {
+    await disconnect();
+  });
+
+  it("should be delete a existing user", async () => {
+    const { id } = await CreateUserService({
+      name: faker.name.findName(),
+      email: faker.internet.email(),
+      password: faker.internet.password()
+    });
+
+    expect(DeleteUserService(id)).resolves.not.toThrow();
+  });
+
+  it("to throw an error if tries to delete a non existing user", async () => {
+    expect(DeleteUserService(faker.random.number())).rejects.toBeInstanceOf(
+      AppError
+    );
+  });
+});

backend/src/__tests__/unit/User/ListUserService.spec.ts

@@ -0,0 +1,34 @@
+import faker from "faker";
+import User from "../../../models/User";
+import CreateUserService from "../../../services/UserServices/CreateUserService";
+import ListUsersService from "../../../services/UserServices/ListUsersService";
+import { disconnect, truncate } from "../../utils/database";
+
+describe("User", () => {
+  beforeEach(async () => {
+    await truncate();
+  });
+
+  afterEach(async () => {
+    await truncate();
+  });
+
+  afterAll(async () => {
+    await disconnect();
+  });
+
+  it("should be able to list users", async () => {
+    await CreateUserService({
+      name: faker.name.findName(),
+      email: faker.internet.email(),
+      password: faker.internet.password()
+    });
+
+    const response = await ListUsersService({
+      pageNumber: 1
+    });
+
+    expect(response).toHaveProperty("users");
+    expect(response.users[0]).toBeInstanceOf(User);
+  });
+});

backend/src/__tests__/unit/User/ShowUserService.spec.ts

@@ -0,0 +1,39 @@
+import faker from "faker";
+import AppError from "../../../errors/AppError";
+import User from "../../../models/User";
+import CreateUserService from "../../../services/UserServices/CreateUserService";
+import ShowUserService from "../../../services/UserServices/ShowUserService";
+import { disconnect, truncate } from "../../utils/database";
+
+describe("User", () => {
+  beforeEach(async () => {
+    await truncate();
+  });
+
+  afterEach(async () => {
+    await truncate();
+  });
+
+  afterAll(async () => {
+    await disconnect();
+  });
+
+  it("should be able to find a user", async () => {
+    const newUser = await CreateUserService({
+      name: faker.name.findName(),
+      email: faker.internet.email(),
+      password: faker.internet.password()
+    });
+
+    const user = await ShowUserService(newUser.id);
+
+    expect(user).toHaveProperty("id");
+    expect(user).toBeInstanceOf(User);
+  });
+
+  it("should not be able to find a inexisting user", async () => {
+    expect(ShowUserService(faker.random.number())).rejects.toBeInstanceOf(
+      AppError
+    );
+  });
+});

backend/src/__tests__/unit/User/UpdateUserService.spec.ts

@@ -0,0 +1,68 @@
+import faker from "faker";
+import AppError from "../../../errors/AppError";
+import CreateUserService from "../../../services/UserServices/CreateUserService";
+import UpdateUserService from "../../../services/UserServices/UpdateUserService";
+import { disconnect, truncate } from "../../utils/database";
+
+describe("User", () => {
+  beforeEach(async () => {
+    await truncate();
+  });
+
+  afterEach(async () => {
+    await truncate();
+  });
+
+  afterAll(async () => {
+    await disconnect();
+  });
+
+  it("should be able to find a user", async () => {
+    const newUser = await CreateUserService({
+      name: faker.name.findName(),
+      email: faker.internet.email(),
+      password: faker.internet.password()
+    });
+
+    const updatedUser = await UpdateUserService({
+      userId: newUser.id,
+      userData: {
+        name: "New name",
+        email: "newmail@email.com"
+      }
+    });
+
+    expect(updatedUser).toHaveProperty("name", "New name");
+    expect(updatedUser).toHaveProperty("email", "newmail@email.com");
+  });
+
+  it("should not be able to updated a inexisting user", async () => {
+    const userId = faker.random.number();
+    const userData = {
+      name: faker.name.findName(),
+      email: faker.internet.email()
+    };
+
+    expect(UpdateUserService({ userId, userData })).rejects.toBeInstanceOf(
+      AppError
+    );
+  });
+
+  it("should not be able to updated an user with invalid data", async () => {
+    const newUser = await CreateUserService({
+      name: faker.name.findName(),
+      email: faker.internet.email(),
+      password: faker.internet.password()
+    });
+
+    const userId = newUser.id;
+    const userData = {
+      name: faker.name.findName(),
+      email: "test.worgn.email"
+    };
+
+    expect(UpdateUserService({ userId, userData })).rejects.toBeInstanceOf(
+      AppError
+    );
+  });
+});

backend/src/__tests__/utils/database.ts

@@ -0,0 +1,11 @@
+import database from "../../database";
+
+const truncate = async (): Promise<void> => {
+  await database.truncate({ force: true, cascade: true });
+};
+
+const disconnect = async (): Promise<void> => {
+  return database.connectionManager.close();
+};
+
+export { truncate, disconnect };

backend/src/app.ts

@@ -0,0 +1,43 @@
+import "./bootstrap";
+import "reflect-metadata";
+import "express-async-errors";
+import express, { Request, Response, NextFunction } from "express";
+import cors from "cors";
+import cookieParser from "cookie-parser";
+import * as Sentry from "@sentry/node";
+
+import "./database";
+import uploadConfig from "./config/upload";
+import AppError from "./errors/AppError";
+import routes from "./routes";
+import { logger } from "./utils/logger";
+
+Sentry.init({ dsn: process.env.SENTRY_DSN });
+
+const app = express();
+
+app.use(
+  cors({
+    credentials: true,
+    origin: process.env.FRONTEND_URL
+  })
+);
+app.use(cookieParser());
+app.use(express.json());
+app.use(Sentry.Handlers.requestHandler());
+app.use("/public", express.static(uploadConfig.directory));
+app.use(routes);
+
+app.use(Sentry.Handlers.errorHandler());
+
+app.use(async (err: Error, req: Request, res: Response, _: NextFunction) => {
+  if (err instanceof AppError) {
+    logger.warn(err);
+    return res.status(err.statusCode).json({ error: err.message });
+  }
+
+  logger.error(err);
+  return res.status(500).json({ error: "Internal server error" });
+});
+
+export default app;

backend/src/bootstrap.ts

@@ -0,0 +1,5 @@
+import dotenv from "dotenv";
+
+dotenv.config({
+  path: process.env.NODE_ENV === "test" ? ".env.test" : ".env"
+});

backend/src/config/auth.ts

@@ -0,0 +1,6 @@
+export default {
+  secret: process.env.JWT_SECRET || "mysecret",
+  expiresIn: "15m",
+  refreshSecret: process.env.JWT_REFRESH_SECRET || "myanothersecret",
+  refreshExpiresIn: "7d"
+};

backend/src/config/database.ts

@@ -0,0 +1,15 @@
+require("../bootstrap");
+
+module.exports = {
+  define: {
+    charset: "utf8mb4",
+    collate: "utf8mb4_bin"
+  },
+  dialect: process.env.DB_DIALECT || "mysql",
+  timezone: "-03:00",
+  host: process.env.DB_HOST,
+  database: process.env.DB_NAME,
+  username: process.env.DB_USER,
+  password: process.env.DB_PASS,
+  logging: false
+};

backend/src/config/upload.ts

@@ -0,0 +1,16 @@
+import path from "path";
+import multer from "multer";
+
+const publicFolder = path.resolve(__dirname, "..", "..", "public");
+export default {
+  directory: publicFolder,
+
+  storage: multer.diskStorage({
+    destination: publicFolder,
+    filename(req, file, cb) {
+      const fileName = new Date().getTime() + path.extname(file.originalname);
+
+      return cb(null, fileName);
+    }
+  })
+};

backend/src/controllers/ApiController.ts

@@ -0,0 +1,111 @@
+import { Request, Response } from "express";
+import * as Yup from "yup";
+import AppError from "../errors/AppError";
+import GetDefaultWhatsApp from "../helpers/GetDefaultWhatsApp";
+import SetTicketMessagesAsRead from "../helpers/SetTicketMessagesAsRead";
+import Message from "../models/Message";
+import Whatsapp from "../models/Whatsapp";
+import CreateOrUpdateContactService from "../services/ContactServices/CreateOrUpdateContactService";
+import FindOrCreateTicketService from "../services/TicketServices/FindOrCreateTicketService";
+import ShowTicketService from "../services/TicketServices/ShowTicketService";
+import CheckIsValidContact from "../services/WbotServices/CheckIsValidContact";
+import CheckContactNumber from "../services/WbotServices/CheckNumber";
+import GetProfilePicUrl from "../services/WbotServices/GetProfilePicUrl";
+import SendWhatsAppMedia from "../services/WbotServices/SendWhatsAppMedia";
+import SendWhatsAppMessage from "../services/WbotServices/SendWhatsAppMessage";
+
+type WhatsappData = {
+  whatsappId: number;
+}
+
+type MessageData = {
+  body: string;
+  fromMe: boolean;
+  read: boolean;
+  quotedMsg?: Message;
+};
+
+interface ContactData {
+  number: string;
+}
+
+const createContact = async (
+  whatsappId: number | undefined,
+  newContact: string
+) => {
+  await CheckIsValidContact(newContact);
+
+  const validNumber: any = await CheckContactNumber(newContact);
+
+  const profilePicUrl = await GetProfilePicUrl(validNumber);
+
+  const number = validNumber;
+
+  const contactData = {
+    name: `${number}`,
+    number,
+    profilePicUrl,
+    isGroup: false
+  };
+
+  const contact = await CreateOrUpdateContactService(contactData);
+
+  let whatsapp:Whatsapp | null;
+
+  if(whatsappId === undefined) {
+    whatsapp = await GetDefaultWhatsApp();
+  } else {
+    whatsapp = await Whatsapp.findByPk(whatsappId);
+
+    if(whatsapp === null) {
+      throw new AppError(`whatsapp #${whatsappId} not found`);
+    }
+  }
+
+  const createTicket = await FindOrCreateTicketService(
+    contact,
+    whatsapp.id,
+    1
+  );
+
+  const ticket = await ShowTicketService(createTicket.id);
+
+  SetTicketMessagesAsRead(ticket);
+
+  return ticket;
+};
+
+export const index = async (req: Request, res: Response): Promise<Response> => {
+  const newContact: ContactData = req.body;
+  const { whatsappId }: WhatsappData = req.body;
+  const { body, quotedMsg }: MessageData = req.body;
+  const medias = req.files as Express.Multer.File[];
+
+  newContact.number = newContact.number.replace("-", "").replace(" ", "");
+
+  const schema = Yup.object().shape({
+    number: Yup.string()
+      .required()
+      .matches(/^\d+$/, "Invalid number format. Only numbers is allowed.")
+  });
+
+  try {
+    await schema.validate(newContact);
+  } catch (err: any) {
+    throw new AppError(err.message);
+  }
+
+  const contactAndTicket = await createContact(whatsappId, newContact.number);
+
+  if (medias) {
+    await Promise.all(
+      medias.map(async (media: Express.Multer.File) => {
+        await SendWhatsAppMedia({ body, media, ticket: contactAndTicket });
+      })
+    );
+  } else {
+    await SendWhatsAppMessage({ body, ticket: contactAndTicket, quotedMsg });
+  }
+
+  return res.send();
+};

backend/src/controllers/ContactController.ts

@@ -0,0 +1,162 @@
+import * as Yup from "yup";
+import { Request, Response } from "express";
+import { getIO } from "../libs/socket";
+
+import ListContactsService from "../services/ContactServices/ListContactsService";
+import CreateContactService from "../services/ContactServices/CreateContactService";
+import ShowContactService from "../services/ContactServices/ShowContactService";
+import UpdateContactService from "../services/ContactServices/UpdateContactService";
+import DeleteContactService from "../services/ContactServices/DeleteContactService";
+
+import CheckContactNumber from "../services/WbotServices/CheckNumber"
+import CheckIsValidContact from "../services/WbotServices/CheckIsValidContact";
+import GetProfilePicUrl from "../services/WbotServices/GetProfilePicUrl";
+import AppError from "../errors/AppError";
+import GetContactService from "../services/ContactServices/GetContactService";
+
+type IndexQuery = {
+  searchParam: string;
+  pageNumber: string;
+};
+
+type IndexGetContactQuery = {
+  name: string;
+  number: string;
+};
+
+interface ExtraInfo {
+  name: string;
+  value: string;
+}
+interface ContactData {
+  name: string;
+  number: string;
+  email?: string;
+  extraInfo?: ExtraInfo[];
+}
+
+export const index = async (req: Request, res: Response): Promise<Response> => {
+  const { searchParam, pageNumber } = req.query as IndexQuery;
+
+  const { contacts, count, hasMore } = await ListContactsService({
+    searchParam,
+    pageNumber
+  });
+
+  return res.json({ contacts, count, hasMore });
+};
+
+export const getContact = async (req: Request, res: Response): Promise<Response> => {
+  const { name, number } = req.body as IndexGetContactQuery;
+
+  const contact = await GetContactService({
+    name,
+    number
+  });
+
+  return res.status(200).json(contact);
+};
+
+export const store = async (req: Request, res: Response): Promise<Response> => {
+  const newContact: ContactData = req.body;
+  newContact.number = newContact.number.replace("-", "").replace(" ", "");
+
+  const schema = Yup.object().shape({
+    name: Yup.string().required(),
+    number: Yup.string()
+      .required()
+      .matches(/^\d+$/, "Invalid number format. Only numbers is allowed.")
+  });
+
+  try {
+    await schema.validate(newContact);
+  } catch (err) {
+    throw new AppError(err.message);
+  }
+
+  await CheckIsValidContact(newContact.number);
+  const validNumber : any = await CheckContactNumber(newContact.number)
+  
+  const profilePicUrl = await GetProfilePicUrl(validNumber);
+
+  let name = newContact.name
+  let number = validNumber
+  let email = newContact.email
+  let extraInfo = newContact.extraInfo
+
+  const contact = await CreateContactService({
+    name,
+    number,
+    email,
+    extraInfo,
+    profilePicUrl
+  });
+
+  const io = getIO();
+  io.emit("contact", {
+    action: "create",
+    contact
+  });
+
+  return res.status(200).json(contact);
+};
+
+export const show = async (req: Request, res: Response): Promise<Response> => {
+  const { contactId } = req.params;
+
+  const contact = await ShowContactService(contactId);
+
+  return res.status(200).json(contact);
+};
+
+export const update = async (
+  req: Request,
+  res: Response
+): Promise<Response> => {
+  const contactData: ContactData = req.body;
+
+  const schema = Yup.object().shape({
+    name: Yup.string(),
+    number: Yup.string().matches(
+      /^\d+$/,
+      "Invalid number format. Only numbers is allowed."
+    )
+  });
+
+  try {
+    await schema.validate(contactData);
+  } catch (err) {
+    throw new AppError(err.message);
+  }
+
+  await CheckIsValidContact(contactData.number);
+
+  const { contactId } = req.params;
+
+  const contact = await UpdateContactService({ contactData, contactId });
+
+  const io = getIO();
+  io.emit("contact", {
+    action: "update",
+    contact
+  });
+
+  return res.status(200).json(contact);
+};
+
+export const remove = async (
+  req: Request,
+  res: Response
+): Promise<Response> => {
+  const { contactId } = req.params;
+
+  await DeleteContactService(contactId);
+
+  const io = getIO();
+  io.emit("contact", {
+    action: "delete",
+    contactId
+  });
+
+  return res.status(200).json({ message: "Contact deleted" });
+};

backend/src/controllers/ImportPhoneContactsController.ts

@@ -0,0 +1,9 @@
+import { Request, Response } from "express";
+import ImportContactsService from "../services/WbotServices/ImportContactsService";
+
+export const store = async (req: Request, res: Response): Promise<Response> => {
+  const userId:number = parseInt(req.user.id);
+  await ImportContactsService(userId);
+
+  return res.status(200).json({ message: "contacts imported" });
+};

backend/src/controllers/MessageController.ts

@@ -0,0 +1,75 @@
+import { Request, Response } from "express";
+
+import SetTicketMessagesAsRead from "../helpers/SetTicketMessagesAsRead";
+import { getIO } from "../libs/socket";
+import Message from "../models/Message";
+
+import ListMessagesService from "../services/MessageServices/ListMessagesService";
+import ShowTicketService from "../services/TicketServices/ShowTicketService";
+import DeleteWhatsAppMessage from "../services/WbotServices/DeleteWhatsAppMessage";
+import SendWhatsAppMedia from "../services/WbotServices/SendWhatsAppMedia";
+import SendWhatsAppMessage from "../services/WbotServices/SendWhatsAppMessage";
+
+type IndexQuery = {
+  pageNumber: string;
+};
+
+type MessageData = {
+  body: string;
+  fromMe: boolean;
+  read: boolean;
+  quotedMsg?: Message;
+};
+
+export const index = async (req: Request, res: Response): Promise<Response> => {
+  const { ticketId } = req.params;
+  const { pageNumber } = req.query as IndexQuery;
+
+  const { count, messages, ticket, hasMore } = await ListMessagesService({
+    pageNumber,
+    ticketId
+  });
+
+  SetTicketMessagesAsRead(ticket);
+
+  return res.json({ count, messages, ticket, hasMore });
+};
+
+export const store = async (req: Request, res: Response): Promise<Response> => {
+  const { ticketId } = req.params;
+  const { body, quotedMsg }: MessageData = req.body;
+  const medias = req.files as Express.Multer.File[];
+
+  const ticket = await ShowTicketService(ticketId);
+
+  SetTicketMessagesAsRead(ticket);
+
+  if (medias) {
+    await Promise.all(
+      medias.map(async (media: Express.Multer.File) => {
+        await SendWhatsAppMedia({ media, ticket });
+      })
+    );
+  } else {
+    await SendWhatsAppMessage({ body, ticket, quotedMsg });
+  }
+
+  return res.send();
+};
+
+export const remove = async (
+  req: Request,
+  res: Response
+): Promise<Response> => {
+  const { messageId } = req.params;
+
+  const message = await DeleteWhatsAppMessage(messageId);
+
+  const io = getIO();
+  io.to(message.ticketId.toString()).emit("appMessage", {
+    action: "update",
+    message
+  });
+
+  return res.send();
+};

backend/src/controllers/QueueController.ts

@@ -0,0 +1,69 @@
+import { Request, Response } from "express";
+import { getIO } from "../libs/socket";
+import CreateQueueService from "../services/QueueService/CreateQueueService";
+import DeleteQueueService from "../services/QueueService/DeleteQueueService";
+import ListQueuesService from "../services/QueueService/ListQueuesService";
+import ShowQueueService from "../services/QueueService/ShowQueueService";
+import UpdateQueueService from "../services/QueueService/UpdateQueueService";
+
+export const index = async (req: Request, res: Response): Promise<Response> => {
+  const queues = await ListQueuesService();
+
+  return res.status(200).json(queues);
+};
+
+export const store = async (req: Request, res: Response): Promise<Response> => {
+  const { name, color, greetingMessage } = req.body;
+
+  const queue = await CreateQueueService({ name, color, greetingMessage });
+
+  const io = getIO();
+  io.emit("queue", {
+    action: "update",
+    queue
+  });
+
+  return res.status(200).json(queue);
+};
+
+export const show = async (req: Request, res: Response): Promise<Response> => {
+  const { queueId } = req.params;
+
+  const queue = await ShowQueueService(queueId);
+
+  return res.status(200).json(queue);
+};
+
+export const update = async (
+  req: Request,
+  res: Response
+): Promise<Response> => {
+  const { queueId } = req.params;
+
+  const queue = await UpdateQueueService(queueId, req.body);
+
+  const io = getIO();
+  io.emit("queue", {
+    action: "update",
+    queue
+  });
+
+  return res.status(201).json(queue);
+};
+
+export const remove = async (
+  req: Request,
+  res: Response
+): Promise<Response> => {
+  const { queueId } = req.params;
+
+  await DeleteQueueService(queueId);
+
+  const io = getIO();
+  io.emit("queue", {
+    action: "delete",
+    queueId: +queueId
+  });
+
+  return res.status(200).send();
+};

backend/src/controllers/QuickAnswerController.ts

@@ -0,0 +1,117 @@
+import * as Yup from "yup";
+import { Request, Response } from "express";
+import { getIO } from "../libs/socket";
+
+import ListQuickAnswerService from "../services/QuickAnswerService/ListQuickAnswerService";
+import CreateQuickAnswerService from "../services/QuickAnswerService/CreateQuickAnswerService";
+import ShowQuickAnswerService from "../services/QuickAnswerService/ShowQuickAnswerService";
+import UpdateQuickAnswerService from "../services/QuickAnswerService/UpdateQuickAnswerService";
+import DeleteQuickAnswerService from "../services/QuickAnswerService/DeleteQuickAnswerService";
+
+import AppError from "../errors/AppError";
+
+type IndexQuery = {
+  searchParam: string;
+  pageNumber: string;
+};
+
+interface QuickAnswerData {
+  shortcut: string;
+  message: string;
+}
+
+export const index = async (req: Request, res: Response): Promise<Response> => {
+  const { searchParam, pageNumber } = req.query as IndexQuery;
+
+  const { quickAnswers, count, hasMore } = await ListQuickAnswerService({
+    searchParam,
+    pageNumber
+  });
+
+  return res.json({ quickAnswers, count, hasMore });
+};
+
+export const store = async (req: Request, res: Response): Promise<Response> => {
+  const newQuickAnswer: QuickAnswerData = req.body;
+
+  const QuickAnswerSchema = Yup.object().shape({
+    shortcut: Yup.string().required(),
+    message: Yup.string().required()
+  });
+
+  try {
+    await QuickAnswerSchema.validate(newQuickAnswer);
+  } catch (err) {
+    throw new AppError(err.message);
+  }
+
+  const quickAnswer = await CreateQuickAnswerService({
+    ...newQuickAnswer
+  });
+
+  const io = getIO();
+  io.emit("quickAnswer", {
+    action: "create",
+    quickAnswer
+  });
+
+  return res.status(200).json(quickAnswer);
+};
+
+export const show = async (req: Request, res: Response): Promise<Response> => {
+  const { quickAnswerId } = req.params;
+
+  const quickAnswer = await ShowQuickAnswerService(quickAnswerId);
+
+  return res.status(200).json(quickAnswer);
+};
+
+export const update = async (
+  req: Request,
+  res: Response
+): Promise<Response> => {
+  const quickAnswerData: QuickAnswerData = req.body;
+
+  const schema = Yup.object().shape({
+    shortcut: Yup.string(),
+    message: Yup.string()
+  });
+
+  try {
+    await schema.validate(quickAnswerData);
+  } catch (err) {
+    throw new AppError(err.message);
+  }
+
+  const { quickAnswerId } = req.params;
+
+  const quickAnswer = await UpdateQuickAnswerService({
+    quickAnswerData,
+    quickAnswerId
+  });
+
+  const io = getIO();
+  io.emit("quickAnswer", {
+    action: "update",
+    quickAnswer
+  });
+
+  return res.status(200).json(quickAnswer);
+};
+
+export const remove = async (
+  req: Request,
+  res: Response
+): Promise<Response> => {
+  const { quickAnswerId } = req.params;
+
+  await DeleteQuickAnswerService(quickAnswerId);
+
+  const io = getIO();
+  io.emit("quickAnswer", {
+    action: "delete",
+    quickAnswerId
+  });
+
+  return res.status(200).json({ message: "Quick Answer deleted" });
+};

backend/src/controllers/SessionController.ts

@@ -0,0 +1,51 @@
+import { Request, Response } from "express";
+import AppError from "../errors/AppError";
+
+import AuthUserService from "../services/UserServices/AuthUserService";
+import { SendRefreshToken } from "../helpers/SendRefreshToken";
+import { RefreshTokenService } from "../services/AuthServices/RefreshTokenService";
+
+export const store = async (req: Request, res: Response): Promise<Response> => {
+  const { email, password } = req.body;
+
+  const { token, serializedUser, refreshToken } = await AuthUserService({
+    email,
+    password
+  });
+
+  SendRefreshToken(res, refreshToken);
+
+  return res.status(200).json({
+    token,
+    user: serializedUser
+  });
+};
+
+export const update = async (
+  req: Request,
+  res: Response
+): Promise<Response> => {
+  const token: string = req.cookies.jrt;
+
+  if (!token) {
+    throw new AppError("ERR_SESSION_EXPIRED", 401);
+  }
+
+  const { user, newToken, refreshToken } = await RefreshTokenService(
+    res,
+    token
+  );
+
+  SendRefreshToken(res, refreshToken);
+
+  return res.json({ token: newToken, user });
+};
+
+export const remove = async (
+  req: Request,
+  res: Response
+): Promise<Response> => {
+  res.clearCookie("jrt");
+
+  return res.send();
+};

backend/src/controllers/SettingController.ts

@@ -0,0 +1,41 @@
+import { Request, Response } from "express";
+
+import { getIO } from "../libs/socket";
+import AppError from "../errors/AppError";
+
+import UpdateSettingService from "../services/SettingServices/UpdateSettingService";
+import ListSettingsService from "../services/SettingServices/ListSettingsService";
+
+export const index = async (req: Request, res: Response): Promise<Response> => {
+  if (req.user.profile !== "admin") {
+    throw new AppError("ERR_NO_PERMISSION", 403);
+  }
+
+  const settings = await ListSettingsService();
+
+  return res.status(200).json(settings);
+};
+
+export const update = async (
+  req: Request,
+  res: Response
+): Promise<Response> => {
+  if (req.user.profile !== "admin") {
+    throw new AppError("ERR_NO_PERMISSION", 403);
+  }
+  const { settingKey: key } = req.params;
+  const { value } = req.body;
+
+  const setting = await UpdateSettingService({
+    key,
+    value
+  });
+
+  const io = getIO();
+  io.emit("settings", {
+    action: "update",
+    setting
+  });
+
+  return res.status(200).json(setting);
+};

backend/src/controllers/TicketController.ts

@@ -0,0 +1,131 @@
+import { Request, Response } from "express";
+import { getIO } from "../libs/socket";
+
+import CreateTicketService from "../services/TicketServices/CreateTicketService";
+import DeleteTicketService from "../services/TicketServices/DeleteTicketService";
+import ListTicketsService from "../services/TicketServices/ListTicketsService";
+import ShowTicketService from "../services/TicketServices/ShowTicketService";
+import UpdateTicketService from "../services/TicketServices/UpdateTicketService";
+import SendWhatsAppMessage from "../services/WbotServices/SendWhatsAppMessage";
+import ShowWhatsAppService from "../services/WhatsappService/ShowWhatsAppService";
+import formatBody from "../helpers/Mustache";
+
+type IndexQuery = {
+  searchParam: string;
+  pageNumber: string;
+  status: string;
+  date: string;
+  showAll: string;
+  withUnreadMessages: string;
+  queueIds: string;
+};
+
+interface TicketData {
+  contactId: number;
+  status: string;
+  queueId: number;
+  userId: number;
+}
+
+export const index = async (req: Request, res: Response): Promise<Response> => {
+  const {
+    pageNumber,
+    status,
+    date,
+    searchParam,
+    showAll,
+    queueIds: queueIdsStringified,
+    withUnreadMessages
+  } = req.query as IndexQuery;
+
+  const userId = req.user.id;
+
+  let queueIds: number[] = [];
+
+  if (queueIdsStringified) {
+    queueIds = JSON.parse(queueIdsStringified);
+  }
+
+  const { tickets, count, hasMore } = await ListTicketsService({
+    searchParam,
+    pageNumber,
+    status,
+    date,
+    showAll,
+    userId,
+    queueIds,
+    withUnreadMessages
+  });
+
+  return res.status(200).json({ tickets, count, hasMore });
+};
+
+export const store = async (req: Request, res: Response): Promise<Response> => {
+  const { contactId, status, userId }: TicketData = req.body;
+
+  const ticket = await CreateTicketService({ contactId, status, userId });
+
+  const io = getIO();
+  io.to(ticket.status).emit("ticket", {
+    action: "update",
+    ticket
+  });
+
+  return res.status(200).json(ticket);
+};
+
+export const show = async (req: Request, res: Response): Promise<Response> => {
+  const { ticketId } = req.params;
+
+  const contact = await ShowTicketService(ticketId);
+
+  return res.status(200).json(contact);
+};
+
+export const update = async (
+  req: Request,
+  res: Response
+): Promise<Response> => {
+  const { ticketId } = req.params;
+  const ticketData: TicketData = req.body;
+
+  const { ticket } = await UpdateTicketService({
+    ticketData,
+    ticketId
+  });
+
+  if (ticket.status === "closed") {
+    const whatsapp = await ShowWhatsAppService(ticket.whatsappId);
+
+    const { farewellMessage } = whatsapp;
+
+    if (farewellMessage) {
+      await SendWhatsAppMessage({
+        body: formatBody(farewellMessage, ticket.contact),
+        ticket
+      });
+    }
+  }
+
+  return res.status(200).json(ticket);
+};
+
+export const remove = async (
+  req: Request,
+  res: Response
+): Promise<Response> => {
+  const { ticketId } = req.params;
+
+  const ticket = await DeleteTicketService(ticketId);
+
+  const io = getIO();
+  io.to(ticket.status)
+    .to(ticketId)
+    .to("notification")
+    .emit("ticket", {
+      action: "delete",
+      ticketId: +ticketId
+    });
+
+  return res.status(200).json({ message: "ticket deleted" });
+};

backend/src/controllers/UserController.ts

@@ -0,0 +1,108 @@
+import { Request, Response } from "express";
+import { getIO } from "../libs/socket";
+
+import CheckSettingsHelper from "../helpers/CheckSettings";
+import AppError from "../errors/AppError";
+
+import CreateUserService from "../services/UserServices/CreateUserService";
+import ListUsersService from "../services/UserServices/ListUsersService";
+import UpdateUserService from "../services/UserServices/UpdateUserService";
+import ShowUserService from "../services/UserServices/ShowUserService";
+import DeleteUserService from "../services/UserServices/DeleteUserService";
+
+type IndexQuery = {
+  searchParam: string;
+  pageNumber: string;
+};
+
+export const index = async (req: Request, res: Response): Promise<Response> => {
+  const { searchParam, pageNumber } = req.query as IndexQuery;
+
+  const { users, count, hasMore } = await ListUsersService({
+    searchParam,
+    pageNumber
+  });
+
+  return res.json({ users, count, hasMore });
+};
+
+export const store = async (req: Request, res: Response): Promise<Response> => {
+  const { email, password, name, profile, queueIds, whatsappId } = req.body;
+
+  if (
+    req.url === "/signup" &&
+    (await CheckSettingsHelper("userCreation")) === "disabled"
+  ) {
+    throw new AppError("ERR_USER_CREATION_DISABLED", 403);
+  } else if (req.url !== "/signup" && req.user.profile !== "admin") {
+    throw new AppError("ERR_NO_PERMISSION", 403);
+  }
+
+  const user = await CreateUserService({
+    email,
+    password,
+    name,
+    profile,
+    queueIds,
+    whatsappId
+  });
+
+  const io = getIO();
+  io.emit("user", {
+    action: "create",
+    user
+  });
+
+  return res.status(200).json(user);
+};
+
+export const show = async (req: Request, res: Response): Promise<Response> => {
+  const { userId } = req.params;
+
+  const user = await ShowUserService(userId);
+
+  return res.status(200).json(user);
+};
+
+export const update = async (
+  req: Request,
+  res: Response
+): Promise<Response> => {
+  if (req.user.profile !== "admin") {
+    throw new AppError("ERR_NO_PERMISSION", 403);
+  }
+
+  const { userId } = req.params;
+  const userData = req.body;
+
+  const user = await UpdateUserService({ userData, userId });
+
+  const io = getIO();
+  io.emit("user", {
+    action: "update",
+    user
+  });
+
+  return res.status(200).json(user);
+};
+
+export const remove = async (
+  req: Request,
+  res: Response
+): Promise<Response> => {
+  const { userId } = req.params;
+
+  if (req.user.profile !== "admin") {
+    throw new AppError("ERR_NO_PERMISSION", 403);
+  }
+
+  await DeleteUserService(userId);
+
+  const io = getIO();
+  io.emit("user", {
+    action: "delete",
+    userId
+  });
+
+  return res.status(200).json({ message: "User deleted" });
+};

backend/src/controllers/WhatsAppController.ts

@@ -0,0 +1,116 @@
+import { Request, Response } from "express";
+import { getIO } from "../libs/socket";
+import { removeWbot } from "../libs/wbot";
+import { StartWhatsAppSession } from "../services/WbotServices/StartWhatsAppSession";
+
+import CreateWhatsAppService from "../services/WhatsappService/CreateWhatsAppService";
+import DeleteWhatsAppService from "../services/WhatsappService/DeleteWhatsAppService";
+import ListWhatsAppsService from "../services/WhatsappService/ListWhatsAppsService";
+import ShowWhatsAppService from "../services/WhatsappService/ShowWhatsAppService";
+import UpdateWhatsAppService from "../services/WhatsappService/UpdateWhatsAppService";
+
+interface WhatsappData {
+  name: string;
+  queueIds: number[];
+  greetingMessage?: string;
+  farewellMessage?: string;
+  status?: string;
+  isDefault?: boolean;
+}
+
+export const index = async (req: Request, res: Response): Promise<Response> => {
+  const whatsapps = await ListWhatsAppsService();
+
+  return res.status(200).json(whatsapps);
+};
+
+export const store = async (req: Request, res: Response): Promise<Response> => {
+  const {
+    name,
+    status,
+    isDefault,
+    greetingMessage,
+    farewellMessage,
+    queueIds
+  }: WhatsappData = req.body;
+
+  const { whatsapp, oldDefaultWhatsapp } = await CreateWhatsAppService({
+    name,
+    status,
+    isDefault,
+    greetingMessage,
+    farewellMessage,
+    queueIds
+  });
+
+  StartWhatsAppSession(whatsapp);
+
+  const io = getIO();
+  io.emit("whatsapp", {
+    action: "update",
+    whatsapp
+  });
+
+  if (oldDefaultWhatsapp) {
+    io.emit("whatsapp", {
+      action: "update",
+      whatsapp: oldDefaultWhatsapp
+    });
+  }
+
+  return res.status(200).json(whatsapp);
+};
+
+export const show = async (req: Request, res: Response): Promise<Response> => {
+  const { whatsappId } = req.params;
+
+  const whatsapp = await ShowWhatsAppService(whatsappId);
+
+  return res.status(200).json(whatsapp);
+};
+
+export const update = async (
+  req: Request,
+  res: Response
+): Promise<Response> => {
+  const { whatsappId } = req.params;
+  const whatsappData = req.body;
+
+  const { whatsapp, oldDefaultWhatsapp } = await UpdateWhatsAppService({
+    whatsappData,
+    whatsappId
+  });
+
+  const io = getIO();
+  io.emit("whatsapp", {
+    action: "update",
+    whatsapp
+  });
+
+  if (oldDefaultWhatsapp) {
+    io.emit("whatsapp", {
+      action: "update",
+      whatsapp: oldDefaultWhatsapp
+    });
+  }
+
+  return res.status(200).json(whatsapp);
+};
+
+export const remove = async (
+  req: Request,
+  res: Response
+): Promise<Response> => {
+  const { whatsappId } = req.params;
+
+  await DeleteWhatsAppService(whatsappId);
+  removeWbot(+whatsappId);
+
+  const io = getIO();
+  io.emit("whatsapp", {
+    action: "delete",
+    whatsappId: +whatsappId
+  });
+
+  return res.status(200).json({ message: "Whatsapp deleted." });
+};

backend/src/controllers/WhatsAppSessionController.ts

@@ -0,0 +1,40 @@
+import { Request, Response } from "express";
+import { getWbot } from "../libs/wbot";
+import ShowWhatsAppService from "../services/WhatsappService/ShowWhatsAppService";
+import { StartWhatsAppSession } from "../services/WbotServices/StartWhatsAppSession";
+import UpdateWhatsAppService from "../services/WhatsappService/UpdateWhatsAppService";
+
+const store = async (req: Request, res: Response): Promise<Response> => {
+  const { whatsappId } = req.params;
+  const whatsapp = await ShowWhatsAppService(whatsappId);
+
+  StartWhatsAppSession(whatsapp);
+
+  return res.status(200).json({ message: "Starting session." });
+};
+
+const update = async (req: Request, res: Response): Promise<Response> => {
+  const { whatsappId } = req.params;
+
+  const { whatsapp } = await UpdateWhatsAppService({
+    whatsappId,
+    whatsappData: { session: "" }
+  });
+
+  StartWhatsAppSession(whatsapp);
+
+  return res.status(200).json({ message: "Starting session." });
+};
+
+const remove = async (req: Request, res: Response): Promise<Response> => {
+  const { whatsappId } = req.params;
+  const whatsapp = await ShowWhatsAppService(whatsappId);
+
+  const wbot = getWbot(whatsapp.id);
+
+  wbot.logout();
+
+  return res.status(200).json({ message: "Session disconnected." });
+};
+
+export default { store, remove, update };

backend/src/database/index.ts

@@ -0,0 +1,36 @@
+import { Sequelize } from "sequelize-typescript";
+import User from "../models/User";
+import Setting from "../models/Setting";
+import Contact from "../models/Contact";
+import Ticket from "../models/Ticket";
+import Whatsapp from "../models/Whatsapp";
+import ContactCustomField from "../models/ContactCustomField";
+import Message from "../models/Message";
+import Queue from "../models/Queue";
+import WhatsappQueue from "../models/WhatsappQueue";
+import UserQueue from "../models/UserQueue";
+import QuickAnswer from "../models/QuickAnswer";
+
+// eslint-disable-next-line
+const dbConfig = require("../config/database");
+// import dbConfig from "../config/database";
+
+const sequelize = new Sequelize(dbConfig);
+
+const models = [
+  User,
+  Contact,
+  Ticket,
+  Message,
+  Whatsapp,
+  ContactCustomField,
+  Setting,
+  Queue,
+  WhatsappQueue,
+  UserQueue,
+  QuickAnswer
+];
+
+sequelize.addModels(models);
+
+export default sequelize;

backend/src/database/migrations/20200717133438-create-users.ts

@@ -0,0 +1,39 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.createTable("Users", {
+      id: {
+        type: DataTypes.INTEGER,
+        autoIncrement: true,
+        primaryKey: true,
+        allowNull: false
+      },
+      name: {
+        type: DataTypes.STRING,
+        allowNull: false
+      },
+      email: {
+        type: DataTypes.STRING,
+        allowNull: false,
+        unique: true
+      },
+      passwordHash: {
+        type: DataTypes.STRING,
+        allowNull: false
+      },
+      createdAt: {
+        type: DataTypes.DATE,
+        allowNull: false
+      },
+      updatedAt: {
+        type: DataTypes.DATE,
+        allowNull: false
+      }
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.dropTable("Users");
+  }
+};

backend/src/database/migrations/20200717144403-create-contacts.ts

@@ -0,0 +1,38 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.createTable("Contacts", {
+      id: {
+        type: DataTypes.INTEGER,
+        autoIncrement: true,
+        primaryKey: true,
+        allowNull: false
+      },
+      name: {
+        type: DataTypes.STRING,
+        allowNull: false
+      },
+      number: {
+        type: DataTypes.STRING,
+        allowNull: false,
+        unique: true
+      },
+      profilePicUrl: {
+        type: DataTypes.STRING
+      },
+      createdAt: {
+        type: DataTypes.DATE,
+        allowNull: false
+      },
+      updatedAt: {
+        type: DataTypes.DATE,
+        allowNull: false
+      }
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.dropTable("Contacts");
+  }
+};

backend/src/database/migrations/20200717145643-create-tickets.ts

@@ -0,0 +1,46 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.createTable("Tickets", {
+      id: {
+        type: DataTypes.INTEGER,
+        autoIncrement: true,
+        primaryKey: true,
+        allowNull: false
+      },
+      status: {
+        type: DataTypes.STRING,
+        defaultValue: "pending",
+        allowNull: false
+      },
+      lastMessage: {
+        type: DataTypes.STRING
+      },
+      contactId: {
+        type: DataTypes.INTEGER,
+        references: { model: "Contacts", key: "id" },
+        onUpdate: "CASCADE",
+        onDelete: "CASCADE"
+      },
+      userId: {
+        type: DataTypes.INTEGER,
+        references: { model: "Users", key: "id" },
+        onUpdate: "CASCADE",
+        onDelete: "SET NULL"
+      },
+      createdAt: {
+        type: DataTypes.DATE(6),
+        allowNull: false
+      },
+      updatedAt: {
+        type: DataTypes.DATE(6),
+        allowNull: false
+      }
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.dropTable("Tickets");
+  }
+};

backend/src/database/migrations/20200717151645-create-messages.ts

@@ -0,0 +1,58 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.createTable("Messages", {
+      id: {
+        type: DataTypes.STRING,
+        primaryKey: true,
+        allowNull: false
+      },
+      body: {
+        type: DataTypes.TEXT,
+        allowNull: false
+      },
+      ack: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        defaultValue: 0
+      },
+      read: {
+        type: DataTypes.BOOLEAN,
+        allowNull: false,
+        defaultValue: false
+      },
+      mediaType: {
+        type: DataTypes.STRING
+      },
+      mediaUrl: {
+        type: DataTypes.STRING
+      },
+      userId: {
+        type: DataTypes.INTEGER,
+        references: { model: "Users", key: "id" },
+        onUpdate: "CASCADE",
+        onDelete: "SET NULL"
+      },
+      ticketId: {
+        type: DataTypes.INTEGER,
+        references: { model: "Tickets", key: "id" },
+        onUpdate: "CASCADE",
+        onDelete: "CASCADE",
+        allowNull: false
+      },
+      createdAt: {
+        type: DataTypes.DATE(6),
+        allowNull: false
+      },
+      updatedAt: {
+        type: DataTypes.DATE(6),
+        allowNull: false
+      }
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.dropTable("Messages");
+  }
+};

backend/src/database/migrations/20200717170223-create-whatsapps.ts

@@ -0,0 +1,41 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.createTable("Whatsapps", {
+      id: {
+        type: DataTypes.INTEGER,
+        autoIncrement: true,
+        primaryKey: true,
+        allowNull: false
+      },
+      session: {
+        type: DataTypes.TEXT
+      },
+      qrcode: {
+        type: DataTypes.TEXT
+      },
+      status: {
+        type: DataTypes.STRING
+      },
+      battery: {
+        type: DataTypes.STRING
+      },
+      plugged: {
+        type: DataTypes.BOOLEAN
+      },
+      createdAt: {
+        type: DataTypes.DATE,
+        allowNull: false
+      },
+      updatedAt: {
+        type: DataTypes.DATE,
+        allowNull: false
+      }
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.dropTable("Whatsapps");
+  }
+};

backend/src/database/migrations/20200723200315-create-contacts-custom-fields.ts

@@ -0,0 +1,41 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.createTable("ContactCustomFields", {
+      id: {
+        type: DataTypes.INTEGER,
+        autoIncrement: true,
+        primaryKey: true,
+        allowNull: false
+      },
+      name: {
+        type: DataTypes.STRING,
+        allowNull: false
+      },
+      value: {
+        type: DataTypes.STRING,
+        allowNull: false
+      },
+      contactId: {
+        type: DataTypes.INTEGER,
+        references: { model: "Contacts", key: "id" },
+        onUpdate: "CASCADE",
+        onDelete: "CASCADE",
+        allowNull: false
+      },
+      createdAt: {
+        type: DataTypes.DATE,
+        allowNull: false
+      },
+      updatedAt: {
+        type: DataTypes.DATE,
+        allowNull: false
+      }
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.dropTable("ContactCustomFields");
+  }
+};

backend/src/database/migrations/20200723202116-add-email-field-to-contacts.ts

@@ -0,0 +1,15 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Contacts", "email", {
+      type: DataTypes.STRING,
+      allowNull: false,
+      defaultValue: ""
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Contacts", "email");
+  }
+};

backend/src/database/migrations/20200730153237-remove-user-association-from-messages.ts

@@ -0,0 +1,16 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Messages", "userId");
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Messages", "userId", {
+      type: DataTypes.INTEGER,
+      references: { model: "Users", key: "id" },
+      onUpdate: "CASCADE",
+      onDelete: "SET NULL"
+    });
+  }
+};

backend/src/database/migrations/20200730153545-add-fromMe-to-messages.ts

@@ -0,0 +1,15 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Messages", "fromMe", {
+      type: DataTypes.BOOLEAN,
+      allowNull: false,
+      defaultValue: false
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Messages", "fromMe");
+  }
+};

backend/src/database/migrations/20200813114236-change-ticket-lastMessage-column-type.ts

@@ -0,0 +1,15 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.changeColumn("Tickets", "lastMessage", {
+      type: DataTypes.TEXT
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.changeColumn("Tickets", "lastMessage", {
+      type: DataTypes.STRING
+    });
+  }
+};

backend/src/database/migrations/20200901235509-add-profile-column-to-users.ts

@@ -0,0 +1,15 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Users", "profile", {
+      type: DataTypes.STRING,
+      allowNull: false,
+      defaultValue: "admin"
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Users", "profile");
+  }
+};

backend/src/database/migrations/20200903215941-create-settings.ts

@@ -0,0 +1,29 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.createTable("Settings", {
+      key: {
+        type: DataTypes.STRING,
+        primaryKey: true,
+        allowNull: false
+      },
+      value: {
+        type: DataTypes.TEXT,
+        allowNull: false
+      },
+      createdAt: {
+        type: DataTypes.DATE,
+        allowNull: false
+      },
+      updatedAt: {
+        type: DataTypes.DATE,
+        allowNull: false
+      }
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.dropTable("Settings");
+  }
+};

backend/src/database/migrations/20200904220257-add-name-to-whatsapp.ts

@@ -0,0 +1,15 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Whatsapps", "name", {
+      type: DataTypes.STRING,
+      allowNull: false,
+      unique: true
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Whatsapps", "name");
+  }
+};

backend/src/database/migrations/20200906122228-add-name-default-field-to-whatsapp.ts

@@ -0,0 +1,15 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Whatsapps", "default", {
+      type: DataTypes.BOOLEAN,
+      allowNull: false,
+      defaultValue: false
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Whatsapps", "default");
+  }
+};

backend/src/database/migrations/20200906155658-add-whatsapp-field-to-tickets.ts

@@ -0,0 +1,16 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Tickets", "whatsappId", {
+      type: DataTypes.INTEGER,
+      references: { model: "Whatsapps", key: "id" },
+      onUpdate: "CASCADE",
+      onDelete: "SET NULL"
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Tickets", "whatsappId");
+  }
+};

backend/src/database/migrations/20200919124112-update-default-column-name-on-whatsappp.ts

@@ -0,0 +1,11 @@
+import { QueryInterface } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.renameColumn("Whatsapps", "default", "isDefault");
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.renameColumn("Whatsapps", "isDefault", "default");
+  }
+};

backend/src/database/migrations/20200927220708-add-isDeleted-column-to-messages.ts

@@ -0,0 +1,15 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Messages", "isDeleted", {
+      type: DataTypes.BOOLEAN,
+      allowNull: false,
+      defaultValue: false
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Messages", "isDeleted");
+  }
+};

backend/src/database/migrations/20200929145451-add-user-tokenVersion-column.ts

@@ -0,0 +1,15 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Users", "tokenVersion", {
+      type: DataTypes.INTEGER,
+      allowNull: false,
+      defaultValue: 0
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Users", "tokenVersion");
+  }
+};

backend/src/database/migrations/20200930162323-add-isGroup-column-to-tickets.ts

@@ -0,0 +1,15 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Tickets", "isGroup", {
+      type: DataTypes.BOOLEAN,
+      allowNull: false,
+      defaultValue: false
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Tickets", "isGroup");
+  }
+};

backend/src/database/migrations/20200930194808-add-isGroup-column-to-contacts.ts

@@ -0,0 +1,15 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Contacts", "isGroup", {
+      type: DataTypes.BOOLEAN,
+      allowNull: false,
+      defaultValue: false
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Contacts", "isGroup");
+  }
+};

backend/src/database/migrations/20201004150008-add-contactId-column-to-messages.ts

@@ -0,0 +1,16 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Messages", "contactId", {
+      type: DataTypes.INTEGER,
+      references: { model: "Contacts", key: "id" },
+      onUpdate: "CASCADE",
+      onDelete: "CASCADE"
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Messages", "contactId");
+  }
+};

backend/src/database/migrations/20201004155719-add-vcardContactId-column-to-messages.ts

@@ -0,0 +1,16 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Messages", "vcardContactId", {
+      type: DataTypes.INTEGER,
+      references: { model: "Contacts", key: "id" },
+      onUpdate: "CASCADE",
+      onDelete: "CASCADE"
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Messages", "vcardContactId");
+  }
+};

backend/src/database/migrations/20201004955719-remove-vcardContactId-column-to-messages.ts

@@ -0,0 +1,16 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Messages", "vcardContactId");
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Messages", "vcardContactId", {
+      type: DataTypes.INTEGER,
+      references: { model: "Contacts", key: "id" },
+      onUpdate: "CASCADE",
+      onDelete: "CASCADE"
+    });
+  }
+};

backend/src/database/migrations/20201026215410-add-retries-to-whatsapps.ts

@@ -0,0 +1,15 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Whatsapps", "retries", {
+      type: DataTypes.INTEGER,
+      defaultValue: 0,
+      allowNull: false
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Whatsapps", "retries");
+  }
+};

backend/src/database/migrations/20201028124427-add-quoted-msg-to-messages.ts

@@ -0,0 +1,16 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Messages", "quotedMsgId", {
+      type: DataTypes.STRING,
+      references: { model: "Messages", key: "id" },
+      onUpdate: "CASCADE",
+      onDelete: "SET NULL"
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Messages", "quotedMsgId");
+  }
+};

backend/src/database/migrations/20210108001431-add-unreadMessages-to-tickets.ts

@@ -0,0 +1,13 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Tickets", "unreadMessages", {
+      type: DataTypes.INTEGER
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Tickets", "unreadMessages");
+  }
+};

backend/src/database/migrations/20210108164404-create-queues.ts

@@ -0,0 +1,39 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.createTable("Queues", {
+      id: {
+        type: DataTypes.INTEGER,
+        autoIncrement: true,
+        primaryKey: true,
+        allowNull: false
+      },
+      name: {
+        type: DataTypes.STRING,
+        allowNull: false,
+        unique: true
+      },
+      color: {
+        type: DataTypes.STRING,
+        allowNull: false,
+        unique: true
+      },
+      greetingMessage: {
+        type: DataTypes.TEXT
+      },
+      createdAt: {
+        type: DataTypes.DATE,
+        allowNull: false
+      },
+      updatedAt: {
+        type: DataTypes.DATE,
+        allowNull: false
+      }
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.dropTable("Queues");
+  }
+};

backend/src/database/migrations/20210108164504-add-queueId-to-tickets.ts

@@ -0,0 +1,16 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Tickets", "queueId", {
+      type: DataTypes.INTEGER,
+      references: { model: "Queues", key: "id" },
+      onUpdate: "CASCADE",
+      onDelete: "SET NULL"
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Tickets", "queueId");
+  }
+};

backend/src/database/migrations/20210108174594-associate-whatsapp-queue.ts

@@ -0,0 +1,28 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.createTable("WhatsappQueues", {
+      whatsappId: {
+        type: DataTypes.INTEGER,
+        primaryKey: true
+      },
+      queueId: {
+        type: DataTypes.INTEGER,
+        primaryKey: true
+      },
+      createdAt: {
+        type: DataTypes.DATE,
+        allowNull: false
+      },
+      updatedAt: {
+        type: DataTypes.DATE,
+        allowNull: false
+      }
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.dropTable("WhatsappQueues");
+  }
+};

backend/src/database/migrations/20210108204708-associate-users-queue.ts

@@ -0,0 +1,28 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.createTable("UserQueues", {
+      userId: {
+        type: DataTypes.INTEGER,
+        primaryKey: true
+      },
+      queueId: {
+        type: DataTypes.INTEGER,
+        primaryKey: true
+      },
+      createdAt: {
+        type: DataTypes.DATE,
+        allowNull: false
+      },
+      updatedAt: {
+        type: DataTypes.DATE,
+        allowNull: false
+      }
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.dropTable("UserQueues");
+  }
+};

backend/src/database/migrations/20210109192513-add-greetingMessage-to-whatsapp.ts

@@ -0,0 +1,13 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Whatsapps", "greetingMessage", {
+      type: DataTypes.TEXT
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Whatsapps", "greetingMessage");
+  }
+};

backend/src/database/migrations/20210818102605-create-quickAnswers.ts

@@ -0,0 +1,34 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.createTable("QuickAnswers", {
+      id: {
+        type: DataTypes.INTEGER,
+        autoIncrement: true,
+        primaryKey: true,
+        allowNull: false
+      },
+      shortcut: {
+        type: DataTypes.TEXT,
+        allowNull: false
+      },
+      message: {
+        type: DataTypes.TEXT,
+        allowNull: false
+      },
+      createdAt: {
+        type: DataTypes.DATE,
+        allowNull: false
+      },
+      updatedAt: {
+        type: DataTypes.DATE,
+        allowNull: false
+      }
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.dropTable("QuickAnswers");
+  }
+};

backend/src/database/migrations/20211016014719-add-farewellMessage-to-whatsapp.ts

@@ -0,0 +1,13 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Whatsapps", "farewellMessage", {
+      type: DataTypes.TEXT
+    });
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Whatsapps", "farewellMessage");
+  }
+};

backend/src/database/migrations/20220223095932-add-whatsapp-to-user.ts

@@ -0,0 +1,17 @@
+import { QueryInterface, DataTypes } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.addColumn("Users", "whatsappId", {
+      type: DataTypes.INTEGER,
+      references: { model: "Whatsapps", key: "id" },
+      onUpdate: "CASCADE",
+      onDelete: "SET NULL",
+      allowNull: true
+    },);
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.removeColumn("Users", "whatsappId");
+  }
+};

backend/src/database/seeds/20200904070004-create-default-settings.ts

@@ -0,0 +1,22 @@
+import { QueryInterface } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.bulkInsert(
+      "Settings",
+      [
+        {
+          key: "userCreation",
+          value: "enabled",
+          createdAt: new Date(),
+          updatedAt: new Date()
+        }
+      ],
+      {}
+    );
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.bulkDelete("Settings", {});
+  }
+};

backend/src/database/seeds/20200904070004-create-default-users.ts

@@ -0,0 +1,25 @@
+import { QueryInterface } from "sequelize";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.bulkInsert(
+      "Users",
+      [
+        {
+          name: "Administrador",
+          email: "admin@whaticket.com",
+          passwordHash: "$2a$08$WaEmpmFDD/XkDqorkpQ42eUZozOqRCPkPcTkmHHMyuTGUOkI8dHsq",
+          profile: "admin",
+          tokenVersion: 0,
+          createdAt: new Date(),
+          updatedAt: new Date()
+        }
+      ],
+      {}
+    );
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.bulkDelete("Users", {});
+  }
+};

backend/src/database/seeds/20200904070006-create-apiToken-settings.ts

@@ -0,0 +1,23 @@
+import { QueryInterface } from "sequelize";
+import { v4 as uuidv4 } from "uuid";
+
+module.exports = {
+  up: (queryInterface: QueryInterface) => {
+    return queryInterface.bulkInsert(
+      "Settings",
+      [
+        {
+          key: "userApiToken",
+          value: uuidv4(),
+          createdAt: new Date(),
+          updatedAt: new Date()
+        }
+      ],
+      {}
+    );
+  },
+
+  down: (queryInterface: QueryInterface) => {
+    return queryInterface.bulkDelete("Settings", {});
+  }
+};

backend/src/errors/AppError.ts

@@ -0,0 +1,12 @@
+class AppError {
+  public readonly message: string;
+
+  public readonly statusCode: number;
+
+  constructor(message: string, statusCode = 400) {
+    this.message = message;
+    this.statusCode = statusCode;
+  }
+}
+
+export default AppError;

backend/src/helpers/CheckContactOpenTickets.ts

@@ -0,0 +1,18 @@
+import { Op } from "sequelize";
+import AppError from "../errors/AppError";
+import Ticket from "../models/Ticket";
+
+const CheckContactOpenTickets = async (
+  contactId: number,
+  whatsappId: number
+): Promise<void> => {
+  const ticket = await Ticket.findOne({
+    where: { contactId, whatsappId, status: { [Op.or]: ["open", "pending"] } }
+  });
+
+  if (ticket) {
+    throw new AppError("ERR_OTHER_OPEN_TICKET");
+  }
+};
+
+export default CheckContactOpenTickets;

backend/src/helpers/CheckSettings.ts

@@ -0,0 +1,16 @@
+import Setting from "../models/Setting";
+import AppError from "../errors/AppError";
+
+const CheckSettings = async (key: string): Promise<string> => {
+  const setting = await Setting.findOne({
+    where: { key }
+  });
+
+  if (!setting) {
+    throw new AppError("ERR_NO_SETTING_FOUND", 404);
+  }
+
+  return setting.value;
+};
+
+export default CheckSettings;

backend/src/helpers/CreateTokens.ts

@@ -0,0 +1,23 @@
+import { sign } from "jsonwebtoken";
+import authConfig from "../config/auth";
+import User from "../models/User";
+
+export const createAccessToken = (user: User): string => {
+  const { secret, expiresIn } = authConfig;
+
+  return sign(
+    { usarname: user.name, profile: user.profile, id: user.id },
+    secret,
+    {
+      expiresIn
+    }
+  );
+};
+
+export const createRefreshToken = (user: User): string => {
+  const { refreshSecret, refreshExpiresIn } = authConfig;
+
+  return sign({ id: user.id, tokenVersion: user.tokenVersion }, refreshSecret, {
+    expiresIn: refreshExpiresIn
+  });
+};

backend/src/helpers/Debounce.ts

@@ -0,0 +1,41 @@
+interface Timeout {
+  id: number;
+  timeout: NodeJS.Timeout;
+}
+
+const timeouts: Timeout[] = [];
+
+const findAndClearTimeout = (ticketId: number) => {
+  if (timeouts.length > 0) {
+    const timeoutIndex = timeouts.findIndex(timeout => timeout.id === ticketId);
+
+    if (timeoutIndex !== -1) {
+      clearTimeout(timeouts[timeoutIndex].timeout);
+      timeouts.splice(timeoutIndex, 1);
+    }
+  }
+};
+
+const debounce = (
+  func: { (): Promise<void>; (...args: never[]): void },
+  wait: number,
+  ticketId: number
+) => {
+  return function executedFunction(...args: never[]): void {
+    const later = () => {
+      findAndClearTimeout(ticketId);
+      func(...args);
+    };
+
+    findAndClearTimeout(ticketId);
+
+    const newTimeout = {
+      id: ticketId,
+      timeout: setTimeout(later, wait)
+    };
+
+    timeouts.push(newTimeout);
+  };
+};
+
+export { debounce };

backend/src/helpers/GetDefaultWhatsApp.ts

@@ -0,0 +1,26 @@
+import AppError from "../errors/AppError";
+import Whatsapp from "../models/Whatsapp";
+import GetDefaultWhatsAppByUser from "./GetDefaultWhatsAppByUser";
+
+const GetDefaultWhatsApp = async (
+  userId?: number
+): Promise<Whatsapp> => {
+  if(userId) {
+    const whatsappByUser = await GetDefaultWhatsAppByUser(userId);
+    if(whatsappByUser !== null) {
+      return whatsappByUser;
+    }
+  }
+
+  const defaultWhatsapp = await Whatsapp.findOne({
+    where: { isDefault: true }
+  });
+
+  if (!defaultWhatsapp) {
+    throw new AppError("ERR_NO_DEF_WAPP_FOUND");
+  }
+
+  return defaultWhatsapp;
+};
+
+export default GetDefaultWhatsApp;

backend/src/helpers/GetDefaultWhatsAppByUser.ts

@@ -0,0 +1,20 @@
+import User from "../models/User";
+import Whatsapp from "../models/Whatsapp";
+import { logger } from "../utils/logger";
+
+const GetDefaultWhatsAppByUser = async (
+  userId: number
+): Promise<Whatsapp | null> => {
+  const user = await User.findByPk(userId, {include: ["whatsapp"]});
+  if( user === null ) {
+    return null;
+  }
+
+  if(user.whatsapp !== null) {
+    logger.info(`Found whatsapp linked to user '${user.name}' is '${user.whatsapp.name}'.`);
+  }
+
+  return user.whatsapp;
+};
+
+export default GetDefaultWhatsAppByUser;

backend/src/helpers/GetTicketWbot.ts

@@ -0,0 +1,18 @@
+import { Client as Session } from "whatsapp-web.js";
+import { getWbot } from "../libs/wbot";
+import GetDefaultWhatsApp from "./GetDefaultWhatsApp";
+import Ticket from "../models/Ticket";
+
+const GetTicketWbot = async (ticket: Ticket): Promise<Session> => {
+  if (!ticket.whatsappId) {
+    const defaultWhatsapp = await GetDefaultWhatsApp(ticket.user.id);
+
+    await ticket.$set("whatsapp", defaultWhatsapp);
+  }
+
+  const wbot = getWbot(ticket.whatsappId);
+
+  return wbot;
+};
+
+export default GetTicketWbot;

backend/src/helpers/GetWbotMessage.ts

@@ -0,0 +1,44 @@
+import { Message as WbotMessage } from "whatsapp-web.js";
+import Ticket from "../models/Ticket";
+import GetTicketWbot from "./GetTicketWbot";
+import AppError from "../errors/AppError";
+
+export const GetWbotMessage = async (
+  ticket: Ticket,
+  messageId: string
+): Promise<WbotMessage> => {
+  const wbot = await GetTicketWbot(ticket);
+
+  const wbotChat = await wbot.getChatById(
+    `${ticket.contact.number}@${ticket.isGroup ? "g" : "c"}.us`
+  );
+
+  let limit = 20;
+
+  const fetchWbotMessagesGradually = async (): Promise<void | WbotMessage> => {
+    const chatMessages = await wbotChat.fetchMessages({ limit });
+
+    const msgFound = chatMessages.find(msg => msg.id.id === messageId);
+
+    if (!msgFound && limit < 100) {
+      limit += 20;
+      return fetchWbotMessagesGradually();
+    }
+
+    return msgFound;
+  };
+
+  try {
+    const msgFound = await fetchWbotMessagesGradually();
+
+    if (!msgFound) {
+      throw new Error("Cannot found message within 100 last messages");
+    }
+
+    return msgFound;
+  } catch (err) {
+    throw new AppError("ERR_FETCH_WAPP_MSG");
+  }
+};
+
+export default GetWbotMessage;

backend/src/helpers/Mustache.ts

@@ -0,0 +1,9 @@
+import Mustache from "mustache";
+import Contact from "../models/Contact";
+
+export default (body: string, contact: Contact): string => {
+  const view = {
+    name: contact ? contact.name : ""
+  };
+  return Mustache.render(body, view);
+};

backend/src/helpers/SendRefreshToken.ts

@@ -0,0 +1,5 @@
+import { Response } from "express";
+
+export const SendRefreshToken = (res: Response, token: string): void => {
+  res.cookie("jrt", token, { httpOnly: true });
+};

backend/src/helpers/SerializeUser.ts

@@ -0,0 +1,23 @@
+import Queue from "../models/Queue";
+import User from "../models/User";
+import Whatsapp from "../models/Whatsapp";
+
+interface SerializedUser {
+  id: number;
+  name: string;
+  email: string;
+  profile: string;
+  queues: Queue[];
+  whatsapp: Whatsapp;
+}
+
+export const SerializeUser = (user: User): SerializedUser => {
+  return {
+    id: user.id,
+    name: user.name,
+    email: user.email,
+    profile: user.profile,
+    queues: user.queues,
+    whatsapp: user.whatsapp
+  };
+};

backend/src/helpers/SerializeWbotMsgId.ts

@@ -0,0 +1,12 @@
+import Message from "../models/Message";
+import Ticket from "../models/Ticket";
+
+const SerializeWbotMsgId = (ticket: Ticket, message: Message): string => {
+  const serializedMsgId = `${message.fromMe}_${ticket.contact.number}@${
+    ticket.isGroup ? "g" : "c"
+  }.us_${message.id}`;
+
+  return serializedMsgId;
+};
+
+export default SerializeWbotMsgId;

backend/src/helpers/SetTicketMessagesAsRead.ts

@@ -0,0 +1,38 @@
+import { getIO } from "../libs/socket";
+import Message from "../models/Message";
+import Ticket from "../models/Ticket";
+import { logger } from "../utils/logger";
+import GetTicketWbot from "./GetTicketWbot";
+
+const SetTicketMessagesAsRead = async (ticket: Ticket): Promise<void> => {
+  await Message.update(
+    { read: true },
+    {
+      where: {
+        ticketId: ticket.id,
+        read: false
+      }
+    }
+  );
+
+  await ticket.update({ unreadMessages: 0 });
+
+  try {
+    const wbot = await GetTicketWbot(ticket);
+    await wbot.sendSeen(
+      `${ticket.contact.number}@${ticket.isGroup ? "g" : "c"}.us`
+    );
+  } catch (err) {
+    logger.warn(
+      `Could not mark messages as read. Maybe whatsapp session disconnected? Err: ${err}`
+    );
+  }
+
+  const io = getIO();
+  io.to(ticket.status).to("notification").emit("ticket", {
+    action: "updateUnread",
+    ticketId: ticket.id
+  });
+};
+
+export default SetTicketMessagesAsRead;

backend/src/helpers/UpdateDeletedUserOpenTicketsStatus.ts

@@ -0,0 +1,17 @@
+import Ticket from "../models/Ticket";
+import UpdateTicketService from "../services/TicketServices/UpdateTicketService";
+
+const UpdateDeletedUserOpenTicketsStatus = async (
+  tickets: Ticket[]
+): Promise<void> => {
+  tickets.forEach(async t => {
+    const ticketId = t.id.toString();
+
+    await UpdateTicketService({
+      ticketData: { status: "pending" },
+      ticketId
+    });
+  });
+};
+
+export default UpdateDeletedUserOpenTicketsStatus;

backend/src/libs/socket.ts

@@ -0,0 +1,44 @@
+import { Server as SocketIO } from "socket.io";
+import { Server } from "http";
+import AppError from "../errors/AppError";
+import { logger } from "../utils/logger";
+
+let io: SocketIO;
+
+export const initIO = (httpServer: Server): SocketIO => {
+  io = new SocketIO(httpServer, {
+    cors: {
+      origin: process.env.FRONTEND_URL
+    }
+  });
+
+  io.on("connection", socket => {
+    logger.info("Client Connected");
+    socket.on("joinChatBox", (ticketId: string) => {
+      logger.info("A client joined a ticket channel");
+      socket.join(ticketId);
+    });
+
+    socket.on("joinNotification", () => {
+      logger.info("A client joined notification channel");
+      socket.join("notification");
+    });
+
+    socket.on("joinTickets", (status: string) => {
+      logger.info(`A client joined to ${status} tickets channel.`);
+      socket.join(status);
+    });
+
+    socket.on("disconnect", () => {
+      logger.info("Client disconnected");
+    });
+  });
+  return io;
+};
+
+export const getIO = (): SocketIO => {
+  if (!io) {
+    throw new AppError("Socket IO not initialized");
+  }
+  return io;
+};

backend/src/libs/wbot.ts

@@ -0,0 +1,155 @@
+import qrCode from "qrcode-terminal";
+import { Client, LocalAuth } from "whatsapp-web.js";
+import { getIO } from "./socket";
+import Whatsapp from "../models/Whatsapp";
+import AppError from "../errors/AppError";
+import { logger } from "../utils/logger";
+import { handleMessage } from "../services/WbotServices/wbotMessageListener";
+
+interface Session extends Client {
+  id?: number;
+}
+
+const sessions: Session[] = [];
+
+const syncUnreadMessages = async (wbot: Session) => {
+  const chats = await wbot.getChats();
+
+  /* eslint-disable no-restricted-syntax */
+  /* eslint-disable no-await-in-loop */
+  for (const chat of chats) {
+    if (chat.unreadCount > 0) {
+      const unreadMessages = await chat.fetchMessages({
+        limit: chat.unreadCount
+      });
+
+      for (const msg of unreadMessages) {
+        await handleMessage(msg, wbot);
+      }
+
+      await chat.sendSeen();
+    }
+  }
+};
+
+export const initWbot = async (whatsapp: Whatsapp): Promise<Session> => {
+  return new Promise((resolve, reject) => {
+    try {
+      const io = getIO();
+      const sessionName = whatsapp.name;
+      let sessionCfg;
+
+      if (whatsapp && whatsapp.session) {
+        sessionCfg = JSON.parse(whatsapp.session);
+      }
+
+      const args:String = process.env.CHROME_ARGS || "";
+
+      const wbot: Session = new Client({
+        session: sessionCfg,
+        authStrategy: new LocalAuth({clientId: 'bd_'+whatsapp.id}),
+        puppeteer: {
+          executablePath: process.env.CHROME_BIN || undefined,
+          // @ts-ignore
+          browserWSEndpoint: process.env.CHROME_WS || undefined,
+          args: args.split(' ')
+        }
+      });
+
+      wbot.initialize();
+
+      wbot.on("qr", async qr => {
+        logger.info("Session:", sessionName);
+        qrCode.generate(qr, { small: true });
+        await whatsapp.update({ qrcode: qr, status: "qrcode", retries: 0 });
+
+        const sessionIndex = sessions.findIndex(s => s.id === whatsapp.id);
+        if (sessionIndex === -1) {
+          wbot.id = whatsapp.id;
+          sessions.push(wbot);
+        }
+
+        io.emit("whatsappSession", {
+          action: "update",
+          session: whatsapp
+        });
+      });
+
+      wbot.on("authenticated", async session => {
+        logger.info(`Session: ${sessionName} AUTHENTICATED`);
+      });
+
+      wbot.on("auth_failure", async msg => {
+        console.error(
+          `Session: ${sessionName} AUTHENTICATION FAILURE! Reason: ${msg}`
+        );
+
+        if (whatsapp.retries > 1) {
+          await whatsapp.update({ session: "", retries: 0 });
+        }
+
+        const retry = whatsapp.retries;
+        await whatsapp.update({
+          status: "DISCONNECTED",
+          retries: retry + 1
+        });
+
+        io.emit("whatsappSession", {
+          action: "update",
+          session: whatsapp
+        });
+
+        reject(new Error("Error starting whatsapp session."));
+      });
+
+      wbot.on("ready", async () => {
+        logger.info(`Session: ${sessionName} READY`);
+
+        await whatsapp.update({
+          status: "CONNECTED",
+          qrcode: "",
+          retries: 0
+        });
+
+        io.emit("whatsappSession", {
+          action: "update",
+          session: whatsapp
+        });
+
+        const sessionIndex = sessions.findIndex(s => s.id === whatsapp.id);
+        if (sessionIndex === -1) {
+          wbot.id = whatsapp.id;
+          sessions.push(wbot);
+        }
+
+        wbot.sendPresenceAvailable();
+        await syncUnreadMessages(wbot);
+
+        resolve(wbot);
+      });
+    } catch (err) {
+      logger.error(err);
+    }
+  });
+};
+
+export const getWbot = (whatsappId: number): Session => {
+  const sessionIndex = sessions.findIndex(s => s.id === whatsappId);
+
+  if (sessionIndex === -1) {
+    throw new AppError("ERR_WAPP_NOT_INITIALIZED");
+  }
+  return sessions[sessionIndex];
+};
+
+export const removeWbot = (whatsappId: number): void => {
+  try {
+    const sessionIndex = sessions.findIndex(s => s.id === whatsappId);
+    if (sessionIndex !== -1) {
+      sessions[sessionIndex].destroy();
+      sessions.splice(sessionIndex, 1);
+    }
+  } catch (err) {
+    logger.error(err);
+  }
+};

backend/src/middleware/isAuth.ts

@@ -0,0 +1,42 @@
+import { verify } from "jsonwebtoken";
+import { Request, Response, NextFunction } from "express";
+
+import AppError from "../errors/AppError";
+import authConfig from "../config/auth";
+
+interface TokenPayload {
+  id: string;
+  username: string;
+  profile: string;
+  iat: number;
+  exp: number;
+}
+
+const isAuth = (req: Request, res: Response, next: NextFunction): void => {
+  const authHeader = req.headers.authorization;
+
+  if (!authHeader) {
+    throw new AppError("ERR_SESSION_EXPIRED", 401);
+  }
+
+  const [, token] = authHeader.split(" ");
+
+  try {
+    const decoded = verify(token, authConfig.secret);
+    const { id, profile } = decoded as TokenPayload;
+
+    req.user = {
+      id,
+      profile
+    };
+  } catch (err) {
+    throw new AppError(
+      "Invalid token. We'll try to assign a new one on next request",
+      403
+    );
+  }
+
+  return next();
+};
+
+export default isAuth;

backend/src/middleware/isAuthApi.ts

@@ -0,0 +1,39 @@
+import { Request, Response, NextFunction } from "express";
+
+import AppError from "../errors/AppError";
+import ListSettingByValueService from "../services/SettingServices/ListSettingByValueService";
+
+const isAuthApi = async (
+  req: Request,
+  res: Response,
+  next: NextFunction
+): Promise<void> => {
+  const authHeader = req.headers.authorization;
+
+  if (!authHeader) {
+    throw new AppError("ERR_SESSION_EXPIRED", 401);
+  }
+
+  const [, token] = authHeader.split(" ");
+
+  try {
+    const getToken = await ListSettingByValueService(token);
+    if (!getToken) {
+      throw new AppError("ERR_SESSION_EXPIRED", 401);
+    }
+
+    if (getToken.value !== token) {
+      throw new AppError("ERR_SESSION_EXPIRED", 401);
+    }
+  } catch (err) {
+    console.log(err);
+    throw new AppError(
+      "Invalid token. We'll try to assign a new one on next request",
+      403
+    );
+  }
+
+  return next();
+};
+
+export default isAuthApi;

backend/src/models/Contact.ts

@@ -0,0 +1,57 @@
+import {
+  Table,
+  Column,
+  CreatedAt,
+  UpdatedAt,
+  Model,
+  PrimaryKey,
+  AutoIncrement,
+  AllowNull,
+  Unique,
+  Default,
+  HasMany
+} from "sequelize-typescript";
+import ContactCustomField from "./ContactCustomField";
+import Ticket from "./Ticket";
+
+@Table
+class Contact extends Model<Contact> {
+  @PrimaryKey
+  @AutoIncrement
+  @Column
+  id: number;
+
+  @Column
+  name: string;
+
+  @AllowNull(false)
+  @Unique
+  @Column
+  number: string;
+
+  @AllowNull(false)
+  @Default("")
+  @Column
+  email: string;
+
+  @Column
+  profilePicUrl: string;
+
+  @Default(false)
+  @Column
+  isGroup: boolean;
+
+  @CreatedAt
+  createdAt: Date;
+
+  @UpdatedAt
+  updatedAt: Date;
+
+  @HasMany(() => Ticket)
+  tickets: Ticket[];
+
+  @HasMany(() => ContactCustomField)
+  extraInfo: ContactCustomField[];
+}
+
+export default Contact;

backend/src/models/ContactCustomField.ts

@@ -0,0 +1,41 @@
+import {
+  Table,
+  Column,
+  CreatedAt,
+  UpdatedAt,
+  Model,
+  PrimaryKey,
+  AutoIncrement,
+  ForeignKey,
+  BelongsTo
+} from "sequelize-typescript";
+import Contact from "./Contact";
+
+@Table
+class ContactCustomField extends Model<ContactCustomField> {
+  @PrimaryKey
+  @AutoIncrement
+  @Column
+  id: number;
+
+  @Column
+  name: string;
+
+  @Column
+  value: string;
+
+  @ForeignKey(() => Contact)
+  @Column
+  contactId: number;
+
+  @BelongsTo(() => Contact)
+  contact: Contact;
+
+  @CreatedAt
+  createdAt: Date;
+
+  @UpdatedAt
+  updatedAt: Date;
+}
+
+export default ContactCustomField;

backend/src/models/Message.ts

@@ -0,0 +1,84 @@
+import {
+  Table,
+  Column,
+  CreatedAt,
+  UpdatedAt,
+  Model,
+  DataType,
+  PrimaryKey,
+  Default,
+  BelongsTo,
+  ForeignKey
+} from "sequelize-typescript";
+import Contact from "./Contact";
+import Ticket from "./Ticket";
+
+@Table
+class Message extends Model<Message> {
+  @PrimaryKey
+  @Column
+  id: string;
+
+  @Default(0)
+  @Column
+  ack: number;
+
+  @Default(false)
+  @Column
+  read: boolean;
+
+  @Default(false)
+  @Column
+  fromMe: boolean;
+
+  @Column(DataType.TEXT)
+  body: string;
+
+  @Column(DataType.STRING)
+  get mediaUrl(): string | null {
+    if (this.getDataValue("mediaUrl")) {
+      return `${process.env.BACKEND_URL}:${
+        process.env.PROXY_PORT
+      }/public/${this.getDataValue("mediaUrl")}`;
+    }
+    return null;
+  }
+
+  @Column
+  mediaType: string;
+
+  @Default(false)
+  @Column
+  isDeleted: boolean;
+
+  @CreatedAt
+  @Column(DataType.DATE(6))
+  createdAt: Date;
+
+  @UpdatedAt
+  @Column(DataType.DATE(6))
+  updatedAt: Date;
+
+  @ForeignKey(() => Message)
+  @Column
+  quotedMsgId: string;
+
+  @BelongsTo(() => Message, "quotedMsgId")
+  quotedMsg: Message;
+
+  @ForeignKey(() => Ticket)
+  @Column
+  ticketId: number;
+
+  @BelongsTo(() => Ticket)
+  ticket: Ticket;
+
+  @ForeignKey(() => Contact)
+  @Column
+  contactId: number;
+
+  @BelongsTo(() => Contact, "contactId")
+  contact: Contact;
+}
+
+export default Message;

backend/src/models/Queue.ts

@@ -0,0 +1,52 @@
+import {
+  Table,
+  Column,
+  CreatedAt,
+  UpdatedAt,
+  Model,
+  PrimaryKey,
+  AutoIncrement,
+  AllowNull,
+  Unique,
+  BelongsToMany
+} from "sequelize-typescript";
+import User from "./User";
+import UserQueue from "./UserQueue";
+
+import Whatsapp from "./Whatsapp";
+import WhatsappQueue from "./WhatsappQueue";
+
+@Table
+class Queue extends Model<Queue> {
+  @PrimaryKey
+  @AutoIncrement
+  @Column
+  id: number;
+
+  @AllowNull(false)
+  @Unique
+  @Column
+  name: string;
+
+  @AllowNull(false)
+  @Unique
+  @Column
+  color: string;
+
+  @Column
+  greetingMessage: string;
+
+  @CreatedAt
+  createdAt: Date;
+
+  @UpdatedAt
+  updatedAt: Date;
+
+  @BelongsToMany(() => Whatsapp, () => WhatsappQueue)
+  whatsapps: Array<Whatsapp & { WhatsappQueue: WhatsappQueue }>;
+
+  @BelongsToMany(() => User, () => UserQueue)
+  users: Array<User & { UserQueue: UserQueue }>;
+}
+
+export default Queue;

backend/src/models/QuickAnswer.ts

@@ -0,0 +1,32 @@
+import {
+  Table,
+  Column,
+  DataType,
+  CreatedAt,
+  UpdatedAt,
+  Model,
+  PrimaryKey,
+  AutoIncrement
+} from "sequelize-typescript";
+
+@Table
+class QuickAnswer extends Model<QuickAnswer> {
+  @PrimaryKey
+  @AutoIncrement
+  @Column
+  id: number;
+
+  @Column(DataType.TEXT)
+  shortcut: string;
+
+  @Column(DataType.TEXT)
+  message: string;
+
+  @CreatedAt
+  createdAt: Date;
+
+  @UpdatedAt
+  updatedAt: Date;
+}
+
+export default QuickAnswer;

backend/src/models/Setting.ts

@@ -0,0 +1,26 @@
+import {
+  Table,
+  Column,
+  CreatedAt,
+  UpdatedAt,
+  Model,
+  PrimaryKey
+} from "sequelize-typescript";
+
+@Table
+class Setting extends Model<Setting> {
+  @PrimaryKey
+  @Column
+  key: string;
+
+  @Column
+  value: string;
+
+  @CreatedAt
+  createdAt: Date;
+
+  @UpdatedAt
+  updatedAt: Date;
+}
+
+export default Setting;

backend/src/models/Ticket.ts

@@ -0,0 +1,79 @@
+import {
+  Table,
+  Column,
+  CreatedAt,
+  UpdatedAt,
+  Model,
+  PrimaryKey,
+  ForeignKey,
+  BelongsTo,
+  HasMany,
+  AutoIncrement,
+  Default
+} from "sequelize-typescript";
+
+import Contact from "./Contact";
+import Message from "./Message";
+import Queue from "./Queue";
+import User from "./User";
+import Whatsapp from "./Whatsapp";
+
+@Table
+class Ticket extends Model<Ticket> {
+  @PrimaryKey
+  @AutoIncrement
+  @Column
+  id: number;
+
+  @Column({ defaultValue: "pending" })
+  status: string;
+
+  @Column
+  unreadMessages: number;
+
+  @Column
+  lastMessage: string;
+
+  @Default(false)
+  @Column
+  isGroup: boolean;
+
+  @CreatedAt
+  createdAt: Date;
+
+  @UpdatedAt
+  updatedAt: Date;
+
+  @ForeignKey(() => User)
+  @Column
+  userId: number;
+
+  @BelongsTo(() => User)
+  user: User;
+
+  @ForeignKey(() => Contact)
+  @Column
+  contactId: number;
+
+  @BelongsTo(() => Contact)
+  contact: Contact;
+
+  @ForeignKey(() => Whatsapp)
+  @Column
+  whatsappId: number;
+
+  @BelongsTo(() => Whatsapp)
+  whatsapp: Whatsapp;
+
+  @ForeignKey(() => Queue)
+  @Column
+  queueId: number;
+
+  @BelongsTo(() => Queue)
+  queue: Queue;
+
+  @HasMany(() => Message)
+  messages: Message[];
+}
+
+export default Ticket;

backend/src/models/User.ts

@@ -0,0 +1,83 @@
+import {
+  Table,
+  Column,
+  CreatedAt,
+  UpdatedAt,
+  Model,
+  DataType,
+  BeforeCreate,
+  BeforeUpdate,
+  PrimaryKey,
+  AutoIncrement,
+  Default,
+  HasMany,
+  BelongsToMany,
+  ForeignKey,
+  BelongsTo
+} from "sequelize-typescript";
+import { hash, compare } from "bcryptjs";
+import Ticket from "./Ticket";
+import Queue from "./Queue";
+import UserQueue from "./UserQueue";
+import Whatsapp from "./Whatsapp";
+
+@Table
+class User extends Model<User> {
+  @PrimaryKey
+  @AutoIncrement
+  @Column
+  id: number;
+
+  @Column
+  name: string;
+
+  @Column
+  email: string;
+
+  @Column(DataType.VIRTUAL)
+  password: string;
+
+  @Column
+  passwordHash: string;
+
+  @Default(0)
+  @Column
+  tokenVersion: number;
+
+  @Default("admin")
+  @Column
+  profile: string;
+
+  @ForeignKey(() => Whatsapp)
+  @Column
+  whatsappId: number;
+
+  @BelongsTo(() => Whatsapp)
+  whatsapp: Whatsapp;
+
+  @CreatedAt
+  createdAt: Date;
+
+  @UpdatedAt
+  updatedAt: Date;
+
+  @HasMany(() => Ticket)
+  tickets: Ticket[];
+
+  @BelongsToMany(() => Queue, () => UserQueue)
+  queues: Queue[];
+
+  @BeforeUpdate
+  @BeforeCreate
+  static hashPassword = async (instance: User): Promise<void> => {
+    if (instance.password) {
+      instance.passwordHash = await hash(instance.password, 8);
+    }
+  };
+
+  public checkPassword = async (password: string): Promise<boolean> => {
+    return compare(password, this.getDataValue("passwordHash"));
+  };
+}
+
+export default User;

backend/src/models/UserQueue.ts

@@ -0,0 +1,29 @@
+import {
+  Table,
+  Column,
+  CreatedAt,
+  UpdatedAt,
+  Model,
+  ForeignKey
+} from "sequelize-typescript";
+import Queue from "./Queue";
+import User from "./User";
+
+@Table
+class UserQueue extends Model<UserQueue> {
+  @ForeignKey(() => User)
+  @Column
+  userId: number;
+
+  @ForeignKey(() => Queue)
+  @Column
+  queueId: number;
+
+  @CreatedAt
+  createdAt: Date;
+
+  @UpdatedAt
+  updatedAt: Date;
+}
+
+export default UserQueue;

backend/src/models/Whatsapp.ts

@@ -0,0 +1,77 @@
+import {
+  Table,
+  Column,
+  CreatedAt,
+  UpdatedAt,
+  Model,
+  DataType,
+  PrimaryKey,
+  AutoIncrement,
+  Default,
+  AllowNull,
+  HasMany,
+  Unique,
+  BelongsToMany
+} from "sequelize-typescript";
+import Queue from "./Queue";
+import Ticket from "./Ticket";
+import WhatsappQueue from "./WhatsappQueue";
+
+@Table
+class Whatsapp extends Model<Whatsapp> {
+  @PrimaryKey
+  @AutoIncrement
+  @Column
+  id: number;
+
+  @AllowNull
+  @Unique
+  @Column(DataType.TEXT)
+  name: string;
+
+  @Column(DataType.TEXT)
+  session: string;
+
+  @Column(DataType.TEXT)
+  qrcode: string;
+
+  @Column
+  status: string;
+
+  @Column
+  battery: string;
+
+  @Column
+  plugged: boolean;
+
+  @Column
+  retries: number;
+
+  @Column(DataType.TEXT)
+  greetingMessage: string;
+
+  @Column(DataType.TEXT)
+  farewellMessage: string;
+
+  @Default(false)
+  @AllowNull
+  @Column
+  isDefault: boolean;
+
+  @CreatedAt
+  createdAt: Date;
+
+  @UpdatedAt
+  updatedAt: Date;
+
+  @HasMany(() => Ticket)
+  tickets: Ticket[];
+
+  @BelongsToMany(() => Queue, () => WhatsappQueue)
+  queues: Array<Queue & { WhatsappQueue: WhatsappQueue }>;
+
+  @HasMany(() => WhatsappQueue)
+  whatsappQueues: WhatsappQueue[];
+}
+
+export default Whatsapp;

backend/src/models/WhatsappQueue.ts

@@ -0,0 +1,33 @@
+import {
+  Table,
+  Column,
+  CreatedAt,
+  UpdatedAt,
+  Model,
+  ForeignKey,
+  BelongsTo
+} from "sequelize-typescript";
+import Queue from "./Queue";
+import Whatsapp from "./Whatsapp";
+
+@Table
+class WhatsappQueue extends Model<WhatsappQueue> {
+  @ForeignKey(() => Whatsapp)
+  @Column
+  whatsappId: number;
+
+  @ForeignKey(() => Queue)
+  @Column
+  queueId: number;
+
+  @CreatedAt
+  createdAt: Date;
+
+  @UpdatedAt
+  updatedAt: Date;
+
+  @BelongsTo(() => Queue)
+  queue: Queue;
+}
+
+export default WhatsappQueue;

backend/src/routes/apiRoutes.ts

@@ -0,0 +1,14 @@
+import express from "express";
+import multer from "multer";
+import uploadConfig from "../config/upload";
+
+import * as ApiController from "../controllers/ApiController";
+import isAuthApi from "../middleware/isAuthApi";
+
+const upload = multer(uploadConfig);
+
+const ApiRoutes = express.Router();
+
+ApiRoutes.post("/send", isAuthApi, upload.array("medias"), ApiController.index);
+
+export default ApiRoutes;

backend/src/routes/authRoutes.ts

@@ -0,0 +1,16 @@
+import { Router } from "express";
+import * as SessionController from "../controllers/SessionController";
+import * as UserController from "../controllers/UserController";
+import isAuth from "../middleware/isAuth";
+
+const authRoutes = Router();
+
+authRoutes.post("/signup", UserController.store);
+
+authRoutes.post("/login", SessionController.store);
+
+authRoutes.post("/refresh_token", SessionController.update);
+
+authRoutes.delete("/logout", isAuth, SessionController.remove);
+
+export default authRoutes;

backend/src/routes/contactRoutes.ts

@@ -0,0 +1,27 @@
+import express from "express";
+import isAuth from "../middleware/isAuth";
+
+import * as ContactController from "../controllers/ContactController";
+import * as ImportPhoneContactsController from "../controllers/ImportPhoneContactsController";
+
+const contactRoutes = express.Router();
+
+contactRoutes.post(
+  "/contacts/import",
+  isAuth,
+  ImportPhoneContactsController.store
+);
+
+contactRoutes.get("/contacts", isAuth, ContactController.index);
+
+contactRoutes.get("/contacts/:contactId", isAuth, ContactController.show);
+
+contactRoutes.post("/contacts", isAuth, ContactController.store);
+
+contactRoutes.post("/contact", isAuth, ContactController.getContact);
+
+contactRoutes.put("/contacts/:contactId", isAuth, ContactController.update);
+
+contactRoutes.delete("/contacts/:contactId", isAuth, ContactController.remove);
+
+export default contactRoutes;

backend/src/routes/index.ts

@@ -0,0 +1,29 @@
+import { Router } from "express";
+
+import userRoutes from "./userRoutes";
+import authRoutes from "./authRoutes";
+import settingRoutes from "./settingRoutes";
+import contactRoutes from "./contactRoutes";
+import ticketRoutes from "./ticketRoutes";
+import whatsappRoutes from "./whatsappRoutes";
+import messageRoutes from "./messageRoutes";
+import whatsappSessionRoutes from "./whatsappSessionRoutes";
+import queueRoutes from "./queueRoutes";
+import quickAnswerRoutes from "./quickAnswerRoutes";
+import apiRoutes from "./apiRoutes";
+
+const routes = Router();
+
+routes.use(userRoutes);
+routes.use("/auth", authRoutes);
+routes.use(settingRoutes);
+routes.use(contactRoutes);
+routes.use(ticketRoutes);
+routes.use(whatsappRoutes);
+routes.use(messageRoutes);
+routes.use(whatsappSessionRoutes);
+routes.use(queueRoutes);
+routes.use(quickAnswerRoutes);
+routes.use("/api/messages", apiRoutes);
+
+export default routes;

backend/src/routes/messageRoutes.ts

@@ -0,0 +1,23 @@
+import { Router } from "express";
+import multer from "multer";
+import isAuth from "../middleware/isAuth";
+import uploadConfig from "../config/upload";
+
+import * as MessageController from "../controllers/MessageController";
+
+const messageRoutes = Router();
+
+const upload = multer(uploadConfig);
+
+messageRoutes.get("/messages/:ticketId", isAuth, MessageController.index);
+
+messageRoutes.post(
+  "/messages/:ticketId",
+  isAuth,
+  upload.array("medias"),
+  MessageController.store
+);
+
+messageRoutes.delete("/messages/:messageId", isAuth, MessageController.remove);
+
+export default messageRoutes;

backend/src/routes/queueRoutes.ts

@@ -0,0 +1,18 @@
+import { Router } from "express";
+import isAuth from "../middleware/isAuth";
+
+import * as QueueController from "../controllers/QueueController";
+
+const queueRoutes = Router();
+
+queueRoutes.get("/queue", isAuth, QueueController.index);
+
+queueRoutes.post("/queue", isAuth, QueueController.store);
+
+queueRoutes.get("/queue/:queueId", isAuth, QueueController.show);
+
+queueRoutes.put("/queue/:queueId", isAuth, QueueController.update);
+
+queueRoutes.delete("/queue/:queueId", isAuth, QueueController.remove);
+
+export default queueRoutes;