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;