import { NextFunction, Request, Response, Router } from 'express';

import { diff } from '@asyncapi/diff';

import { validationMiddleware } from '../middlewares/validation.middleware';

import { ProblemException } from '../exceptions/problem.exception';

import { Controller } from '@/interfaces';

export class DiffController implements Controller {

public basepath = '/diff';

private async diff(req: Request, res: Response, next: NextFunction) {

const { asyncapis } = req.body;

try {

const output = diff(asyncapis[0], asyncapis[1]).getOutput();

res.status(200).json({ diff: output });

} catch (err) {

return next(

new ProblemException({

type: 'internal-diff-error',

title: 'Internal Diff error',

status: 500,

detail: (err as Error).message,

}),

);

}

}

public async boot(): Promise<Router> {

const router = Router();

router.post(

this.basepath,

await validationMiddleware({

path: this.basepath,

method: 'post',

documents: ['asyncapis'],

}),

this.diff.bind(this),

);

return router;

}

}