"use strict";

const express = require('express');
const naturalSort = require('node-natural-sort');
const unique = require('array-unique');

const config = require('../config');
const logger = require('../logger');
const matrix = require('../matrix');

const router = express.Router();
module.exports = router;

function pageIndex(req, res, next) {
    res.json({
        method: '/products',
        error: null,
        result: config.products
    });
}

function pageAdd(req, res, next) {
    //if (!req.params.product || req.params.product !== 'string' || !req.params.product.trim()) {
    if (!req.params.product || req.params.product !== 'string') {
        res.json({
            method: '/products/add',
            error: true,
            error_msg: 'Usage: /products/add/<NEW_PRODUCT>'
        });

        return;
    }

    config.products.push(req.params.product.trim().toUpperCase());
    config.products.map(function(x) { return x.toUpperCase(); });
    unique(config.products);
    config.products.sort(naturalSort());
    matrix.config_is_dirty = true;

    res.json({
        method: '/products/add',
        error: null,
        new_product: newProduct,
        products: config.products
    })
}

function pageDel(req, res, next) {
    if (!req.params.product || req.params.product !== 'string' || !req.params.product.trim()) {
        res.json({
            method: '/products/del',
            error: true,
            error_msg: 'Usage: /products/del/<PRODUCT_TO_DELETE>'
        });

        return;
    }

    const product = req.params.product.trim().toUpperCase();
    config.products.map(function(x) { return x.toUpperCase(); });
    const idx = config.products.indexOf(product);
    config.products.slice(idx, 1)

    matrix.config_is_dirty = true;

    res.json({
        method: '/products/del',
        error: null,
        product_to_delete: product,
        products: config.products
    })
}


router.get('/', pageIndex);
router.get('/add/:product', pageAdd);
router.get('/del/:product', pageDel);