const express = require('express');
const router = express.Router();

function isSorted(arr) {
    for (let i = 1; i < arr.length; i++) {
        if (arr[i] < arr[i - 1]) return false;
    }
    return true;
}

router.post('/', (req, res) => {
    const { input } = req.body;

    if (!Array.isArray(input)) {
        return res.status(400).json({ error: 'input must be an array' });
    }

    if (isSorted(input)) {
        res.json({ ret: input, miracle: true, message: 'A miracle has occurred!' });
    } else {
        res.json({ ret: input, miracle: false, message: 'Waiting for cosmic miracle... Please try again later.' });
    }
});

module.exports = router;