<?php
    // Allow from any origin
    if (isset($_SERVER['HTTP_ORIGIN'])) {
        // Decide if the origin in $_SERVER['HTTP_ORIGIN'] is one
        // you want to allow, and if so:
        header("Access-Control-Allow-Origin: {$_SERVER['HTTP_ORIGIN']}");
        header('Access-Control-Allow-Credentials: true');
        header('Access-Control-Max-Age: 86400');    // cache for 1 day
    }
    
    // Access-Control headers are received during OPTIONS requests
    if ($_SERVER['REQUEST_METHOD'] == 'OPTIONS') {
        
        if (isset($_SERVER['HTTP_ACCESS_CONTROL_REQUEST_METHOD']))
            // may also be using PUT, PATCH, HEAD etc
            header("Access-Control-Allow-Methods: GET, POST, OPTIONS");
        
        if (isset($_SERVER['HTTP_ACCESS_CONTROL_REQUEST_HEADERS']))
            header("Access-Control-Allow-Headers: {$_SERVER['HTTP_ACCESS_CONTROL_REQUEST_HEADERS']}");
    
        exit(0);
    }
    $data = json_decode(file_get_contents('php://input'), true);


    include 'db_connection.php';
    $conn = openCon();
    mysqli_set_charset($conn, "utf8");
    switch($_GET['name']){
        case "client":
            $q = "SELECT client.id, client.name, client.nip, client.arrear FROM client";
            $result = mysqli_query($conn, $q) or die("Problemy z odczytem danych!");
            $tab = [];
            while($row = mysqli_fetch_row($result))
            {
                $tab[]=["id"=>$row[0],"name"=>$row[1], "nip"=>$row[2], "arrear"=>$row[3]];
            }
            echo json_encode($tab);
            break;
        case "add":
            $q = "SELECT product.id, product.name, product.img FROM product";
            $result = mysqli_query($conn, $q) or die("Problemy z odczytem danych!");
            $tab = [];
            while($row = mysqli_fetch_row($result))
            {
                $tab[]=["id"=>$row[0], "name"=>$row[1], "img"=>$row[2]];
            }
            echo json_encode($tab);
            break;
        case "details":
                $q = "SELECT product.id, product.name, product.catalogPrice, product.img FROM product";
                $result = mysqli_query($conn, $q) or die("Problemy z odczytem danych!");
                $tab = [];
                while($row = mysqli_fetch_row($result))
                {
                    $tab[]=["id"=>$row[0], "name"=>$row[1], "catalogPrice"=>$row[2], "img"=>$row[3]];
                }
                echo json_encode($tab);
                break;
    }
    closeCon($conn);
?>