add controllers for import and export jobs

backend/src/controllers/exportController.ts

@@ -0,0 +1,59 @@
+import * as express from 'express';
+import {ExportJob, ExportJobsList} from "../interfaces"
+import {PROCESSING_TIME_EXPORT} from "../config";
+
+class ExportController {
+    public path = '/export';
+    public router = express.Router();
+
+    private exportJobs: ExportJob[] = [];
+
+    constructor() {
+        this.initializeRoutes();
+    }
+
+    public initializeRoutes() {
+        this.router.get(this.path, this.getAllExportJobs);
+        this.router.post(this.path, this.addExportJob);
+    }
+
+    getAllExportJobs = (request: express.Request, response: express.Response) => {
+        const result: ExportJobsList = {
+            pending: [],
+            finished: []
+        };
+
+        this.exportJobs.forEach((exportJob:ExportJob) => {
+            if (exportJob.state === "pending"){
+                result.pending.push(exportJob);
+            }else if (exportJob.state === "finished"){
+                result.finished.push(exportJob);
+            }
+        });
+
+        response.send(result);
+    };
+
+    addExportJob = (request: express.Request, response: express.Response) => {
+        const receivedExportJob = request.body;
+        const fullExportJob:ExportJob = {
+            bookId: receivedExportJob.bookId,
+            type: receivedExportJob.type,
+            state: "pending",
+            created_at: new Date(),
+            updated_at: new Date()
+        };
+        this.exportJobs.push(fullExportJob);
+
+        const jobIndexToUpdate:number = this.exportJobs.length-1;
+        const timeout:number = PROCESSING_TIME_EXPORT[fullExportJob.type]*1000;
+        setTimeout((jobIndex:number) => {
+            this.exportJobs[jobIndex].state = "finished";
+            this.exportJobs[jobIndex].updated_at = new Date();
+        }, timeout, jobIndexToUpdate);
+
+        response.send();
+    }
+}
+
+export default ExportController;