<?php
/**
 * Add to Cart Button Labels for WooCommerce - Per Product Type Core Class
 *
 * @version 1.2.0
 * @since   1.0.0
 * @author  Algoritmika Ltd.
 */

if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly

if ( ! class_exists( 'Alg_WC_Add_To_Cart_Button_Labels_Per_Product_Type' ) ) :

class Alg_WC_Add_To_Cart_Button_Labels_Per_Product_Type {

	/**
	 * Constructor.
	 *
	 * @version 1.2.0
	 * @since   1.0.0
	 */
	function __construct() {
		if ( 'yes' === get_option( 'alg_wc_add_to_cart_button_labels_per_product_type_enabled', 'no' ) ) {
			add_filter( 'woocommerce_product_single_add_to_cart_text', array( $this, 'custom_add_to_cart_button_text_single' ), PHP_INT_MAX );
			add_filter( 'woocommerce_product_add_to_cart_text',        array( $this, 'custom_add_to_cart_button_text_archives' ), PHP_INT_MAX );
		}
	}

	/**
	 * custom_add_to_cart_button_text_single.
	 *
	 * @version 1.2.0
	 * @since   1.2.0
	 */
	function custom_add_to_cart_button_text_single( $add_to_cart_text ) {
		return $this->custom_add_to_cart_button_text( 'single', $add_to_cart_text );
	}

	/**
	 * custom_add_to_cart_button_text_archives.
	 *
	 * @version 1.2.0
	 * @since   1.2.0
	 */
	function custom_add_to_cart_button_text_archives( $add_to_cart_text ) {
		return $this->custom_add_to_cart_button_text( 'archives', $add_to_cart_text );
	}

	/**
	 * get_custom_label_value.
	 *
	 * @version 1.2.0
	 * @since   1.2.0
	 */
	function get_custom_label_value( $single_or_archives, $product_type, $condition ) {
		return get_option( 'alg_wc_add_to_cart_p_prod_type_on_' . $single_or_archives . $condition . '_' . $product_type, '' );
	}

	/**
	 * custom_add_to_cart_button_text.
	 *
	 * @version 1.2.0
	 * @since   1.0.0
	 * @todo    [feature] variable products: per variation, e.g. "already in cart" for single view
	 */
	function custom_add_to_cart_button_text( $single_or_archives, $add_to_cart_text ) {

		global $product;

		if ( ! $product ) {
			return $add_to_cart_text;
		}

		$product_type = alg_wc_atcbl_get_product_type( $product );
		if ( ! in_array( $product_type, array( 'external', 'grouped', 'simple', 'variable' ) ) ) {
			$product_type = 'other';
		}

		// Already in Cart
		if ( '' != ( $label = $this->get_custom_label_value( $single_or_archives, $product_type, '_in_cart' ) ) && isset( WC()->cart ) ) {
			foreach( WC()->cart->get_cart() as $cart_item_key => $values ) {
				$_product = $values['data'];
				if ( get_the_ID() == alg_wc_atcbl_get_product_or_variation_parent_id( $_product ) ) {
					return $label;
				}
			}
		}

		// Empty Price
		if ( '' != ( $label = $this->get_custom_label_value( $single_or_archives, $product_type, '_no_price' ) ) && '' === $product->get_price() ) {
			return $label;
		}

		// Zero Price
		if ( '' != ( $label = $this->get_custom_label_value( $single_or_archives, $product_type, '_zero_price' ) ) && '0' === $product->get_price() ) {
			return $label;
		}

		// On sale
		if ( '' != ( $label = $this->get_custom_label_value( $single_or_archives, $product_type, '_on_sale' ) ) && apply_filters( 'alg_wc_add_to_cart_button_labels', false, 'value_on_sale', array( 'product' => $product ) ) ) {
			return $label;
		}

		// Normal Price
		return ( '' != ( $label = $this->get_custom_label_value( $single_or_archives, $product_type, '' ) ) ) ? $label : $add_to_cart_text;


	}
}

endif;

return new Alg_WC_Add_To_Cart_Button_Labels_Per_Product_Type();