Paid Memberships Pro - South African VAT Plugin (DEVELOPING)

pmpro-south_african-vat.php

<?php
/*
Plugin Name: Paid Memberships Pro - South Africa VAT
Plugin URI: TBA
Description: Apply South Africa VAT to Checkouts with PMPro
Version: .1
Author: Stranger Studios
Author URI: http://www.strangerstudios.com
*/
/*  
  Tax solution for South Africa to add 14% VAT to PMPro Checkout. This Code is not ready for live production and is still being developed.
  
  
  Edit as needed, then save this file to your PMPro Customizations Add On (https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/)
*/ 
//add tax info to cost text. this is enabled if the danish checkbox is checked.
function agst_pmpro_tax($tax, $values, $order)
{  	
	$tax = round((float)$values[price] * 0.14, 2);
	return $tax;
}
 
function agst_pmpro_level_cost_text($cost, $level)
{
	//only applicable for levels > 1
	$cost .= __(" Customers in South Africa will be charged a 14% VAT.", 'pmpro-australia-gst');
	
	return $cost;
}
add_filter("pmpro_level_cost_text", "agst_pmpro_level_cost_text", 10, 2);
 
//set the default country to South Africa
function agst_pmpro_default_country($country) {
	return 'ZA';
}
add_filter('pmpro_default_country', 'agst_pmpro_default_country');
 
//add ZA checkbox to the checkout page
function agst_pmpro_checkout_boxes()
{
?>
<table id="pmpro_pricing_fields" class="pmpro_checkout" width="100%" cellpadding="0" cellspacing="0" border="0">
<thead>
	<tr>
		<th>
			<?php _e('South African Residents', 'pmpro-australia-gst');?>
		</th>						
	</tr>
</thead>
<tbody>                
	<tr>	
		<td>
			<div>				
				<input id="taxregion" name="taxregion" type="checkbox" value="1" <?php if(!empty($_REQUEST['taxregion']) || !empty($_SESSION['taxregion'])) {?>checked="checked"<?php } ?> /> <label for="taxregion" class="pmpro_normal pmpro_clickable"><?php _e('Check this box if your billing address is in South Africa.', 'pmpro-australia-gst');?></label>
			</div>				
		</td>
	</tr>
</tbody>
</table>
<?php
}
add_action("pmpro_checkout_boxes", "agst_pmpro_checkout_boxes");
 
//update tax calculation if buyer is danish
function agst_region_tax_check()
{
	//check request and session
	if(isset($_REQUEST['taxregion']))
	{
		//update the session var
		$_SESSION['taxregion'] = $_REQUEST['taxregion'];	
		
		//not empty? setup the tax function
		if(!empty($_REQUEST['taxregion']))
			add_filter("pmpro_tax", "agst_pmpro_tax", 10, 3);
	}
	elseif(!empty($_SESSION['taxregion']))
	{
		//add the filter
		add_filter("pmpro_tax", "agst_pmpro_tax", 10, 3);
	}
	else
	{
		//check state and country
		if(!empty($_REQUEST['bcountry']))
		{			
			$bcountry = trim(strtolower($_REQUEST['bcountry']));
			if($bcountry == "za")
			{
				//billing address is in ZA
				add_filter("pmpro_tax", "agst_pmpro_tax", 10, 3);
			}
		}
	}
}
add_action("init", "agst_region_tax_check");
 
//remove the taxregion session var on checkout
function agst_pmpro_after_checkout()
{
	if(isset($_SESSION['taxregion']))
		unset($_SESSION['taxregion']);
}
add_action("pmpro_after_checkout", "agst_pmpro_after_checkout");