add controllers for import and export jobs

backend/src/controllers/importController.ts

@@ -0,0 +1,60 @@
+import * as express from 'express';
+import {ImportJobsList, ImportJob} from "../interfaces"
+import {PROCESSING_TIME_IMPORT_ANY} from "../config";
+
+class ImportController {
+    public path = '/import';
+    public router = express.Router();
+
+    private importJobs: ImportJob[] = [];
+
+    constructor() {
+        this.initializeRoutes();
+    }
+
+    public initializeRoutes() {
+        this.router.get(this.path, this.getAllImportJobs);
+        this.router.post(this.path, this.addImportJob);
+    }
+
+    getAllImportJobs = (request: express.Request, response: express.Response) => {
+        const result: ImportJobsList = {
+            pending: [],
+            finished: []
+        };
+
+        this.importJobs.forEach((importJob:ImportJob) => {
+            if (importJob.state === "pending"){
+                result.pending.push(importJob);
+            }else if (importJob.state === "finished"){
+                result.finished.push(importJob);
+            }
+        });
+
+        response.send(result);
+    };
+
+    addImportJob = (request: express.Request, response: express.Response) => {
+        const receivedImportJob = request.body;
+        const fullImportJob:ImportJob = {
+            bookId: receivedImportJob.bookId,
+            type: receivedImportJob.type,
+            url: receivedImportJob.url,
+            state: "pending",
+            created_at: new Date(),
+            updated_at: new Date()
+        };
+        this.importJobs.push(fullImportJob);
+
+        const jobIndexToUpdate:number = this.importJobs.length-1;
+        const timeout:number = PROCESSING_TIME_IMPORT_ANY*1000;
+        setTimeout((jobIndex:number) => {
+            this.importJobs[jobIndex].state = "finished";
+            this.importJobs[jobIndex].updated_at = new Date();
+        }, timeout, jobIndexToUpdate);
+
+        response.send();
+    }
+}
+
+export default ImportController;