app.js

var createError = require("http-errors");
var express = require("express");
var path = require("path");
var cookieParser = require("cookie-parser");
var logger = require("morgan");
const swaggerUi = require("swagger-ui-express");
const swaggerDocument = require("./config/swagger.js");
var indexRouter = require("./routes/index");
var linkerLength = require("./routes/linkerLength");
var contact = require("./routes/contact");
var results = require("./routes/results");
var analyze = require("./routes/analyze");
var design = require("./routes/design");
var createError = require("http-errors");
var express = require("express");
var path = require("path");
var cookieParser = require("cookie-parser");
var logger = require("morgan");

var indexRouter = require("./routes/index");
var linkerLength = require("./routes/linkerLength");
var contact = require("./routes/contact");
var results = require("./routes/results");
var analyze = require("./routes/analyze");
var design = require("./routes/design");
var middleware = require("./routes/midddleware");
const tasks = require("./routes/admin/tasks");
const statistics = require("./routes/admin/statistics");
const login = require("./routes/admin/login");
var app = express();

const options = {
  explorer: false,
  swaggerOptions: {
    validatorUrl: null,
  },
};
app.use("/docs", swaggerUi.serve, swaggerUi.setup(swaggerDocument, options));

let handleCorsHeaders = function (req, res, next) {
  if (req.get("Origin") != null) {
    res.header("Access-Control-Allow-Origin", req.get("Origin"));
    res.header("Access-Control-Allow-Credentials", "true");
    if (req.get("Access-Control-Request-Method")) {
      res.header("Access-Control-Allow-Methods", req.get("Access-Control-Request-Method"));
    }
    if (req.get("Access-Control-Request-Headers")) {
      res.header("Access-Control-Allow-Headers", req.get("Access-Control-Request-Headers"));
    }
    if (req.method === "OPTIONS") {
      res.status(200).send();
    } else {
      next();
    }
  } else {
    next();
  }
};

app.use(handleCorsHeaders);

app.use(express.json());

// view engine setup
app.set("views", path.join(__dirname, "views"));
app.set("view engine", "pug");

app.use(logger("dev"));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, "public")));

app.use("/", indexRouter);

// User front endpoints
app.use("/linkerLength", linkerLength);
app.use("/results", middleware.ensureAuthenticated, results);
app.route("/contact").post(contact.postContact);
app.route("/analyze").post(middleware.ensureAuthenticated, analyze.postAnalyze);
app.route("/design").post(middleware.ensureAuthenticated, design.postDesign);

// Admin
app.route("/tasks").get(middleware.ensureAuthenticated, tasks.getTasks);
app.route("/tasks/:id").get(middleware.ensureAuthenticated, tasks.getTask);
app.route("/tasks/:id/retry").put(middleware.ensureAuthenticated, tasks.retryTask);

//Admin statistics
app.route("/statistics/rate").get(middleware.ensureAuthenticated, statistics.getSuccessRate);
app.route("/statistics/time/average").get(middleware.ensureAuthenticated, statistics.getAverageProcessingTime);
app.route("/statistics/time/fastest").get(middleware.ensureAuthenticated, statistics.getFastestProcessingTime);
app.route("/statistics/time/slowest").get(middleware.ensureAuthenticated, statistics.getSlowestProcessingTime);
app.route("/statistics/queue/status").get(middleware.ensureAuthenticated, statistics.getQueueStatus);
app.route("/statistics/queue/composition").get(middleware.ensureAuthenticated, statistics.getQueueDesignTaskComposition);

app.route("/login").post(login.loginUser);

// catch 404 and forward to error handler
app.use((req, res, next) => {
  next(createError(404));
});

// error handler
app.use(middleware.errorHandler);

module.exports = app;