alessio

<?php
/*
Plugin Name: MX Woocommerce HRK currency + PayPal + HNB conversion
Plugin URI: http://media-x.hr
Description: Plugin for enabling PayPal gateway with HRK set as store currency + HNB conversion
Version: 1.0
Author: Media X
Author URI: http://media-x.hr
License: GPLv3
*/

add_filter('woocommerce_paypal_args', 'convert_hrk_to_eur');
function get_currency() {
        $eur_rate = get_transient( 'eur_rate' );
        if ( empty( $eur_rate ) ){
                $response = wp_remote_get( 'http://hnbex.eu/api/v1/rates/daily');
                if ( is_wp_error( $response ) || 200 != wp_remote_retrieve_response_code( $response ) )
                        $eur_rate = get_option('plugin_options')['text_string'];
                try {
                        $result = wp_remote_retrieve_body( $response );
                        $currency_list = json_decode( $result, true);
                        foreach ($currency_list as $item) {
                                if ($item['currency_code'] === 'EUR') {
                                        $eur_rate = $item['median_rate'];
                                }
                        }
                        set_transient( 'eur_rate', $eur_rate, 6 * HOUR_IN_SECONDS );
                } catch ( Exception $ex ) {
                        error_log( 'HNBEX API REQUEST ERROR : ' . $ex->getMessage() );
                        $eur_rate = get_option('plugin_options')['text_string'];
                }
        }
        return $eur_rate;
}

add_filter( 'woocommerce_paypal_supported_currencies', 'add_hrk_paypal_valid_currency' );
    function add_hrk_paypal_valid_currency( $currencies ) {
     array_push ( $currencies , 'HRK' );
     return $currencies;
    }
add_filter('woocommerce_paypal_args', 'convert_hrk_to_eur');

function convert_hrk_to_eur($paypal_args){
        if ( $paypal_args['currency_code'] == 'HRK'){
        $convert_rate = get_currency();
        $paypal_args['currency_code'] = 'EUR';
                $i = 1;

        while (isset($paypal_args['amount_' . $i])) {
            $paypal_args['amount_' . $i] = round( $paypal_args['amount_' . $i] / $convert_rate, 2);
            ++$i;
        }

                if ( $paypal_args['discount_amount_cart'] > 0 ) {
                        $paypal_args['discount_amount_cart'] = round( $paypal_args['discount_amount_cart'] / $convert_rate, 2);
                }
                }

return $paypal_args;
}
/* Plugin admin option */

// add the admin options page
add_action('admin_menu', 'plugin_admin_add_page');
function plugin_admin_add_page() {
add_options_page('MX WC Plugin Page', 'MX WC fallback rate', 'manage_options', 'plugin', 'plugin_options_page');
}
// display the admin options page
function plugin_options_page() {
?>
<div>
<div><?php echo '<img src="' . plugins_url( 'images/mxwc.jpg', __FILE__ ) . '" > '; ?></div>
<h2>MXWC plugin</h2>
<p>Options relating to the MX WC Plugin.</p>
<form action="options.php" method="post">
<?php settings_fields('plugin_options'); ?>
<?php do_settings_sections('plugin'); ?>

<input name="Submit" type="submit" value="<?php esc_attr_e('Save Changes'); ?>" />
</form></div>
<?php
}
// add the admin settings
add_action('admin_init', 'plugin_admin_init');
function plugin_admin_init(){
register_setting( 'plugin_options', 'plugin_options', 'plugin_options_validate' );
add_settings_section('plugin_main', 'Main Settings', 'plugin_section_text', 'plugin');
add_settings_field('plugin_text_string', 'Upišite stopu konverzije', 'plugin_setting_string', 'plugin', 'plugin_main');
}
function plugin_setting_string() {
$options = get_option('plugin_options');
echo "<input id='plugin_text_string' name='plugin_options[text_string]' size='40' type='text' value='{$options['text_string']}' />";
}
// validate
function plugin_options_validate($input) {
$newinput['text_string'] = trim($input['text_string']);
if(!preg_match('/^[0-9\.]{3,10}$/', $newinput['text_string'])) {
$newinput['text_string'] = '';
}
return $newinput;
}
?>