WordPress WooCommerce get_sign_up_fee based on available variations - wordpress

Question

I am using some custom logics to show or hide variations in variable products using this hook woocommerce_get_children https://stackoverflow.com/a/67804835/6829420 and its working fine as per my expectations.
However, I am having wrong 'Sign Up Fee' in the variable product page because its keep getting the values from one of my hidden variations. Here below is my try and what I have done so far.
add_filter( 'woocommerce_subscriptions_product_price_string', 'subscr_product_price_string', 10, 3 );
function subscr_product_price_string( $subscription_string, $product, $include ){
if (is_admin() || (! $product->is_type( 'variable-subscription' ))) return $subscription_string;
if ( $include['sign_up_fee'] && $product->get_sign_up_fee( $product ) > 0 ) {
$available_variations = $product->get_available_variations();
echo count($available_variations);
echo $product->get_sign_up_fee();
exit;
//echo $prices = get_price_sign_up_fee($product);
exit;
}
Say for example, I have 3 variations "Blue, Yellow and Green" and I have hide "Blue" and go to variation product page.
Then If I do this,
$available_variations = $product->get_available_variations();
echo count($available_variations);
Then its showing 2 but my echo $product->get_sign_up_fee(); keep getting value from "Blue" which has the lowest value but this is wrong value.
Can someone guide me how can I get sign up values based on my available variations only.
I have already updated default From value using below code with woocommerce_variable_price_html hook and its working fine as its getting value based on available variations.
function updateFromDefaultValue($price, $product) {
$prefix = sprintf('%s: ', __('From', 'iconic'));
$min_price_regular = $product->get_variation_regular_price('min', true);
$min_price_sale = $product->get_variation_sale_price('min', true);
$max_price = $product->get_variation_price('max', true);
$min_price = $product->get_variation_price('min', true);
$price = ($min_price_sale == $min_price_regular) ?
wc_price($min_price_regular) :
'<del>' . wc_price($min_price_regular) . '</del>' . '<ins>' . wc_price($min_price_sale) . '</ins>';
return ($min_price == $max_price) ?
$price :
sprintf('%s%s', $prefix, $price);
}
add_filter('woocommerce_variable_price_html', 'updateFromDefaultValue', 10, 2);
Thanks
UPDATE
I have found a hook woocommerce_subscriptions_product_price_string_inclusions through which I am getting an updated sign_up_fee value based on my "Available Subscription". Below is my code.
add_filter('woocommerce_subscriptions_product_price_string_inclusions', 'updateSubscriptionPeriod', 10, 2);
function updateSubscriptionPeriod( $include, $product ) {
if (is_admin() || (! $product->is_type( 'variable-subscription' ))) return $include;
$min_max_variation_data = $product->get_min_and_max_variation_data( array_keys( $prices ) );
if(empty($min_max_variation_data) || empty($min_max_variation_data['subscription'])) return $include;
$include['sign_up_fee'] = $min_max_variation_data['subscription']['signup-fee'];
$include['trial_length'] = 5;
$include['subscription_period'] = 50;
$include['subscription_length'] = $min_max_variation_data['subscription']['interval'];
$include['subscription_price'] = $min_max_variation_data['max']['price'];
return $include;
}
Now I am able to get value 20, please see screenshot below.
But as you can see the difference in my screenshot, I am still not getting the updated values here every 3 years with a 2-week free trial a as it should be said, very 4 years with a 2-month free trial because this is what my values from my available variations.
You can also see I am trying to put some static values as well as dynamic values like this.
$include['trial_length'] = 5;
$include['subscription_period'] = 50;
$include['subscription_length'] = $min_max_variation_data['subscription']['interval'];
$include['subscription_price'] = $min_max_variation_data['max']['price'];
But its just not updating in my product page.
Can someone guide me please how can I update these due values.
Thanks in advance.
UPDATE 2
I have searched across and found woocommerce_subscriptions_product_price_string hook and here is my attempt.
add_filter( 'woocommerce_subscriptions_product_price_string', 'subscriptions_custom_price_string', 20, 3 );
function subscriptions_custom_price_string( $price_string, $product, $args ) {
// Get the trial length to check if it's enabled
$trial_length = $args['trial_length'];
$speriod = $args['subscription_period'];
$sfee = $args['sign_up_fee'];
$sfee = wc_price($sfee);
$sign_up_fee = isset($args['sign_up_fee']) ? __(" and a $sfee sign-up fee", "woocommerce") : '';
if( $trial_length > 0 )
$price_string = $args['price'] . ' / ' . $speriod . $sign_up_fee;
return $price_string;
}
And its showing like this below.
So now basically its updating but its not correct as I lost a format and some other important values.
Can someone guide how can I properly overwrite this filter ?
Thanks

Answer 1

woocommerce_variable_subscription_price_html is the correct hook that you should be using, and here's an example that might work for you:
add_filter( 'woocommerce_variable_subscription_price_html', 'variable_subscription_custom_price_html', 10, 2 );
function variable_subscription_custom_price_html( $price, $product ) {
// Unhook to avoid infinite loop.
remove_filter( 'woocommerce_variable_subscription_price_html', __FUNCTION__, 10, 2 );
// List of product IDs for variations you're hiding.
$hidden_products = array( 4171 );
// Check if the product has any variations that you manually hid.
$hidden = array_intersect( $hidden_products, get_children( array(
'post_parent' => $product->get_id(),
'post_type' => 'product_variation',
'fields' => 'ids',
) ) );
if ( ! empty( $hidden ) ) {
$prices = $product->get_variation_prices( true )['price'];
asort( $prices ); // sort from lowest to highest price
$variation = wc_get_product( array_keys( $prices )[0] );
// It's a variation, so we manually add the 'From: text'.
$price = 'From: ' . $variation->get_price_html();
}
// Re-hook this function.
add_filter( 'woocommerce_variable_subscription_price_html', __FUNCTION__, 10, 2 );
return $price;
}