Make compatible with multicurrency plugins

[girishpanchal30]

Summary

Added filter ppom_option_price to convert the currency value.

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• I have written a test and included it in this PR
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• The code passes when running the PHP CodeSniffer
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Closes https://github.com/Codeinwp/ppom-pro/issues/553

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Pull request overview

This PR introduces a new ppom_option_price filter and applies it across PPOM option-price rendering/calculation paths to improve compatibility with multi-currency plugins (per issue #553).

Changes:

• Added apply_filters( 'ppom_option_price', ... ) in multiple templates and pricing helpers before displaying/storing option prices.
• Registered a new ppom_option_price handler (ppom_convert_price) to convert amounts via common multi-currency plugin hooks/functions.
• Updated cart/mini-cart display paths to use the filtered prices and adjusted the PHPStan baseline accordingly.

Reviewed changes

Copilot reviewed 26 out of 26 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
classes/plugin.class.php	Registers ppom_option_price and implements ppom_convert_price() multi-currency conversion logic.
templates/render-fields.php	Filters file/cropper file_cost before label wc_price() formatting.
templates/input/quantities.php	Filters quantity option prices before display and data attributes.
templates/frontend/inputs/*.php	Filters per-input option prices (text, number, select, radio, checkbox, image, file, etc.).
templates/frontend/component/quantities/*-layout.php	Filters quantity layout prices before use.
inc/woocommerce.php	Filters fees/meta/cart display prices (mini-cart fixed fee, cart item meta, matrix “least price”).
inc/prices.php	Filters generated field price before wc_price() label construction.
inc/nmInput.class.php	Filters prices in legacy HTML builder paths (select/checkbox/radio/image/pricematrix/etc.).
classes/inputs/input.measure.php	Filters measure option price before formatting.
phpstan-baseline.neon	Removes a baseline entry related to wc_price() string/float typing.

Comments suppressed due to low confidence (3)

templates/frontend/inputs/image.php:72

• In the image input, ppom_option_price is applied to $image_price before the “price set in %” branch recalculates the amount. If the stored price is a percent string (e.g., '10%'), the conversion callback may coerce it to a numeric value, and the filter work is also discarded immediately after when $image_price is overwritten. Apply the currency conversion after the percent-to-amount calculation (and only for numeric amounts) to avoid incorrect coercion and double-work.

				$image_price = isset( $image['price'] ) ? $image['price'] : 0;
				$option_id   = $fm->data_name() . '-' . $image_id;
				$opt_percent = isset( $value['percent'] ) ? $value['percent'] : '';
				$image_price = apply_filters( 'ppom_option_price', $image_price );

				// If price set in %
				if ( strpos( $image['price'], '%' ) !== false ) {
					$image_price = ppom_get_amount_after_percentage( $product->get_price(), $image['price'] );
				}

inc/nmInput.class.php:1065

• Same issue as the legacy-view branch above: ppom_option_price is applied to $image_price before checking for a percentage price and recalculating it. To avoid coercing percent strings and to ensure the conversion applies to the final numeric amount, move the filter call to after the percent-to-amount calculation (and guard it with an is_numeric check).

					$image_title = isset( $image['raw'] ) ? stripslashes( $image['raw'] ) : '';
					$image_label = isset( $image['label'] ) ? stripslashes( $image['label'] ) : '';
					$image_price = isset( $image['price'] ) ? $image['price'] : 0;
					$image_price = apply_filters( 'ppom_option_price', $image_price );
					$option_id   = $id . '-' . $image_id;

					// If price set in %
					if ( strpos( $image['price'], '%' ) !== false ) {
						$image_price = ppom_get_amount_after_percentage( $product->get_price(), $image['price'] );
					}

inc/nmInput.class.php:969

• ppom_option_price is applied to $image_price before the percentage-price branch in the legacy view. If $image['price'] is a percent string, a converter that casts to float will coerce it (e.g. '10%' -> 10) and the conversion is then overwritten by the percent-to-amount calculation. Apply the filter after the percentage amount is computed (and only for numeric values).

				$image_full  = isset( $image['link'] ) ? $image['link'] : 0;
				$image_id    = isset( $image['image_id'] ) ? $image['image_id'] : 0;
				$image_title = isset( $image['raw'] ) ? stripslashes( $image['raw'] ) : '';
				$image_label = isset( $image['label'] ) ? stripslashes( $image['label'] ) : '';
				$image_price = isset( $image['price'] ) ? $image['price'] : 0;
				$image_price = apply_filters( 'ppom_option_price', $image_price );
				$option_id   = $id . '-' . $image_id;

				// If price set in %
				if ( strpos( $image['price'], '%' ) !== false ) {
					$image_price = ppom_get_amount_after_percentage( $product->get_price(), $image['price'] );
				}

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