tinystoragecart-checkout-demo

<?php

/**
 * Gets an element of an array by key
 *
 * <code>
 *
 * $array = array(
 *   'cat'  => 'miao',
 *   'dog'  => 'wuff',
 *   'bird' => 'tweet'
 * );
 *
 * echo a::get($array, 'cat');
 * // output: 'miao'
 *
 * echo a::get($array, 'elephant', 'shut up');
 * // output: 'shut up'
 *
 * $catAndDog = a::get(array('cat', 'dog'));
 * // result: array(
 * //   'cat' => 'miao',
 * //   'dog' => 'wuff'
 * // );
 *
 * </code>
 *
 * @param   array  $array The source array
 * @param   mixed  $key The key to look for
 * @param   mixed  $default Optional default value, which should be returned if no element has been found
 * @return  mixed
 */
function get($array, $key, $default = null) {

    // get an array of keys
    if(is_array($key)) {
        $result = array();
        foreach($key as $k) $result[$k] = get($array, $k);
        return $result;

        // get a single
    } else if(isset($array[$key])) {
        return $array[$key];

        // return the entire array if the key is null
    } else if(is_null($key)) {
        return $array;

        // get the default value if nothing else worked out
    } else {
        return $default;
    }

}

/**
 * Shortcut for call_user_func_array with a better handling of arguments
 *
 * @param mixed $function
 * @param mixed $arguments
 * @return mixed
 */
function call($function, $arguments = array()) {
    if(!is_callable($function)) return false;
    if(!is_array($arguments)) $arguments = array($arguments);
    return call_user_func_array($function, $arguments);
}

/**
 * Checks for invalid data
 *
 * @param array $data
 * @param array $rules
 * @param array $messages
 * @return array
 */
function invalid($data, $rules, $messages = []) {
    $errors = [];

    foreach ($rules as $field => $validations) {
        $validationIndex = -1;
        // See: http://php.net/manual/en/types.comparisons.php
        // only false for: null, undefined variable, '', []
        $filled = isset($data[$field]) && $data[$field] !== '' && $data[$field] !== [];

        $message = get($messages, $field, $field);
        // True if there is an error message for each validation method.
        $messageArray = is_array($message);

        foreach ($validations as $method => $options) {
            if (is_numeric($method)) {
                $method = $options;
            }
            $validationIndex++;

            if ($method === 'required') {
                if ($filled) {
                    // Field is required and filled.
                    continue;
                }
            } else if ($filled) {
                if (!is_array($options)) {
                    $options = [$options];
                }
                array_unshift($options, get($data, $field));
                if (call(['v', $method], $options)) {
                    // Field is filled and passes validation method.
                    continue;
                }
            } else {
                // If a field is not required and not filled, no validation should be done.
                continue;
            }

            // If no continue was called we have a failed validation.
            if ($messageArray) {
                $errors[$field][] = get($message, $validationIndex, $field);
            } else {
                $errors[$field] = $message;
            }
        }
    }

    return $errors;
}

function validateForm($data) {
    $response = array();

    // array of rules for form validation
    $rules = array(
        'name' => array('required'),
        'address' => array('required'),
        'zip' => array('required'),
        'city' => array('required'),
        'email' => array('required'),
        'checkbox1' => array('required')
    );

    // array of messages to return if some of the data is not valid
    $messages = array(
        'name' => 'Please enter your name.',
        'address' => 'Please enter your address.',
        'zip' => 'Please enter your zip code.',
        'city' => 'Please enter your city.',
        'email' => 'Please enter a correct e-mail address.',
        'checkbox1' => 'Please confirm the order terms.'
    );

    // evaluate data and rules using the invalid() helper
    if ($invalid = invalid($data, $rules, $messages)) {
        $response['errors'] = $invalid;
    } else {
        $response['success'] = true;
    }

    return $response;
}

function getCartItems($cart) {
    $mailContent = '<tr style="background-color: #e3e4e8;"><td style="padding: 10px; border-left: 1px solid #999999;">Articlenumber</td><td style="padding: 10px; border-left: 1px solid #999999;">Price for one</td><td style="padding: 10px; border-left: 1px solid #999999;">Article</td><td style="padding: 10px; border-left: 1px solid #999999;">Properties</td><td style="padding: 10px; border-left: 1px solid #999999;">Amount</td><td style="padding: 10px; border-left: 1px solid #999999;">Price</td></tr>';

    foreach ($cart as $cartitems) {
        $mailContent .= '<tr style="border-top: 1px solid #999999;">';
        $numItems = count($cartitems);
        $i = 0;

        $articledetail = '';
        foreach ($cartitems as $key => $value) {
            // calc total of product
            if ($key === 'price') {
                $singlePrice = $value;
            }

            if ($key === 'qty') {
                $qty = $value;
            }

            if ($key == 'name') {
                $articledetail .= '<p>' . $value . '</p>';
            }

            if ($key == 'properties') {
                $property = explode(';', $value);
                $value = '';
                foreach ($property as $v) {
                    $value .= $v . '<br />';
                }
            }

            if ($key == 'data') {
                $articledetail .= $value;
                $value = $articledetail;
            }


            // last element, now calc total of product
            if (++$i === $numItems) {
                $sum = $qty * str_replace(',', '.', $singlePrice);
                $mailContent .= '<td style="padding: 10px; border-left: 1px solid #999999;">' . ($key === 'price' ? '$ ' : '') . $value . '</td><td style="padding: 10px; border-left: 1px solid #999999;">$ ' . str_replace('.', ',', $sum) . '</td>';
            } else {
                if ($key !== 'image' && $key !== 'name' && $key !== 'propertieshash') {
                    $mailContent .= '<td style="padding: 10px; border-left: 1px solid #999999;">' . ($key === 'price' ? '$ ' : '') . $value . '</td>';
                }
            }
        }
        $mailContent .= '</tr>';
    }

    return $mailContent;
}

function sendOrderMail($data) {

    $data = array_reverse($data, true);
    $response = array();

    $labels = array(
        'name' => 'Name: ',
        'address' => 'Address: ',
        'zip' => 'Zip: ',
        'city' => 'City: ',
        'email' => 'Email: ',
        'total' => 'Total: ',
        'shipping' => 'Shipping: ',
        'full' => 'Full: '
    );

    // Build Mailcontent
    $mailAdress = '<table>';
    $mailContentSum = '';
    foreach ($data as $key => $value) {
        if ($key === 'cart') {
            // Cart
            $mailContentCart = getCartItems($value);
        } elseif ($key === 'total' || $key === 'shipping' || $key === 'full') {
            // Costs
            $mailContentSum .= '<tr style="background-color: #e3e4e8;"><td colspan="5" style="padding: 10px;">' . $labels[$key] . '</td><td style="padding: 10px;">$ '. $value . '</td></tr>';
        } else {
            // Address
            if($key !== 'checkbox1') {
                $mailAdress .= '<tr><td>' . $labels[$key] . '</td><td>'. urldecode($value) . '</td></tr>';
            }
        }

        if ($key === 'email') {
            $sendermail = urldecode($value);
        }
    }
    $mailAdress .= '</table>';

    $sendText = '<table style="border-collapse: collapse; border-spacing: 0; border: 1px solid #999999">';
    $sendText .= $mailContentCart;
    $sendText .= $mailContentSum;
    $sendText .= '</table>';
    $sendText .= '<h4>The order goes to:</h4>';
    $sendText .= $mailAdress;

    $response['success'] = '<h2>Demo-Order: Thank you for your order.</h2><p>Your data was sent by e-mail. I will get back soon as possible.</p>' . $sendText;

    return $response;
}

$request_body = file_get_contents('php://input');
if($request_body) {
    $data = json_decode($request_body, true);
    // call validateForm() with $data as parameter
    $response = validateForm($data);

    // if form validation succeeds, we try to add the data to the structure field
    if(isset($response['success'])) {
        $response = sendOrderMail($data);
    }

    echo json_encode($response, ARRAY_FILTER_USE_KEY);

}