wp-postcode-plugin/prijs-per-postcode.php

<?php

session_start();
require_once "session_dialog.php";
/*
 * Plugin Name: prijzen per poscode range
 * Description:  posctcodes in de 5000-5800 range krijgen een lokaal tarief aangeboden.
 * Author: Remo Zaros
 * Version: 0.9.1
 * Text Domeain: prijs-per-postcode
 */

if (!defined("ABSPATH")) {
    echo "big bag of potatoes";
    exit();
}

class PrijsPerPostcode
{
    public function __construct()
    {
        add_action("init", [$this, "init"]);
        add_action("rest_api_init", "register_modal_api");
    }

    public function init()
    {
        $uri = $_SERVER["REQUEST_URI"];
        init_postcode_handlers($uri);
        add_filter("woocommerce_sale_flash", "__return_null");

        //add_action("template_redirect", [$this, "redirect_if_missing_tag"]);
        add_action(
            "woocommerce_variation_options_pricing",
            [$this, "add_local_price_field"],
            10,
            3,
        );
        add_action(
            "woocommerce_save_product_variation",
            [$this, "save_local_price_field"],
            10,
            2,
        );
        add_action("woocommerce_before_calculate_totals", [
            $this,
            "use_local_price_if_local_postcode",
        ]);

        add_filter(
            "woocommerce_get_price_html",
            [$this, "display_local_price_on_product"],
            10,
            2,
        );
        add_action("template_redirect", [
            $this,
            "controleer_postcode_op_woocommerce_paginas",
        ]);
        add_filter(
            "woocommerce_variation_is_visible",
            [$this, "filter_variation_by_local_price"],
            10,
            4,
        );
        add_filter(
            "gettext",
            [$this, "change_variation_regular_price_label"],
            99,
            3,
        );
    }

    public function add_local_price_field($loop, $variation_data, $variation)
    {
        woocommerce_wp_text_input([
            "id" => "_local_price[" . $loop . "]",
            "label" =>
                __("Lokale Prijs", "woocommerce") .
                " (" .
                get_woocommerce_currency_symbol() .
                ")",
            "value" => get_post_meta($variation->ID, "_local_price", true),
            "data_type" => "price",
            "wrapper_class" => "form-row form-row-first", // Left half
        ]);
    }

    public function save_local_price_field($variation_id, $i)
    {
        $local_price = $_POST["_local_price"][$i];
        if (isset($local_price)) {
            update_post_meta(
                $variation_id,
                "_local_price",
                wc_clean($local_price),
            );
        }
    }

    public function use_local_price_if_local_postcode($cart)
    {
        if (is_admin() && !defined("DOING_AJAX")) {
            return;
        }

        foreach ($cart->get_cart() as $cart_item) {
            $product = $cart_item["data"];
            $variation_id = $product->is_type("variation")
                ? $product->get_id()
                : 0;

            if (
                $variation_id &&
                isset($_SESSION["postcode_is_local"]) &&
                $_SESSION["postcode_is_local"]
            ) {
                $local_price = get_post_meta(
                    $variation_id,
                    "_local_price",
                    true,
                );
                if ($local_price) {
                    $product->set_price($local_price);
                }
            }
        }
    }

    public function controleer_postcode_op_woocommerce_paginas()
    {
        if (is_admin() || defined("DOING_AJAX")) {
            return;
        }

        if (
            (is_product() ||
                is_product_category() ||
                is_product_tag() ||
                is_cart() ||
                is_checkout() ||
                is_account_page()) &&
            !is_shop()
        ) {
            if (!isset($_SESSION["postcode_is_local"])) {
                wp_redirect(home_url("/winkel/"));
                exit();
            }
        }
    }

    public function display_local_price_on_product($price_html, $product)
    {
        if (
            $product->is_type("variation") &&
            isset($_SESSION["postcode_is_local"]) &&
            $_SESSION["postcode_is_local"] === true
        ) {
            $local_price = get_post_meta(
                $product->get_id(),
                "_local_price",
                true,
            );
            if ($local_price !== "") {
                return wc_price($local_price);
            }
        }
        return $price_html;
    }

    function filter_variation_by_local_price(
        $visible,
        $variation_id,
        $parent_id,
        $variation,
    ) {
        // Ensure $variation is a valid object
        if (!$variation instanceof WC_Product_Variation) {
            $variation = wc_get_product($variation_id);
        }

        if (!$variation) {
            return false;
        }

        $is_local = isset($_SESSION["postcode_is_local"])
            ? $_SESSION["postcode_is_local"]
            : false;
        $price = $is_local
            ? $variation->get_meta("_local_price", true)
            : $variation->get_regular_price();

        if (empty($price) || floatval($price) == 0) {
            return false;
        }

        return $visible;
    }

    public function change_variation_regular_price_label(
        $translated_text,
        $text,
        $domain,
    ) {
        if (
            "woocommerce" === $domain &&
            is_admin() &&
            isset($_REQUEST["action"]) &&
            "woocommerce_load_variations" === $_REQUEST["action"]
        ) {
            if ($translated_text === "Reguliere prijs (%s)") {
                $translated_text = "Prijs overige regios (%s)";
            }
        }
        return $translated_text;
    }
}

new PrijsPerPostcode();