/**
 * AW: Cart -> Inquiry (bez checkouta) - FIX za "vrti se"
 * - NE prepisuje checkout URL (da ne radi loop)
 * - ukloni sve "Proceed to checkout" gumbe
 * - doda formu za "Zatraži ponudu" na cart
 * - /checkout preusmjeri na /cart
 */

// 1) Blokiraj pristup checkoutu
add_action('template_redirect', function () {
    if (function_exists('is_checkout') && is_checkout() && ! is_order_received_page()) {
        wp_safe_redirect(wc_get_cart_url());
        exit;
    }
}, 1);

// 2) Makni SVE što se ispisuje na "woocommerce_proceed_to_checkout" (Flatsome često ubacuje svoje)
add_action('wp_loaded', function () {
    if ( did_action('wp_loaded') ) { /* no-op */ }
    if ( function_exists('remove_all_actions') ) {
        remove_all_actions('woocommerce_proceed_to_checkout');
    }
}, 20);

// 3) Dodaj formu + gumb na cart (hook koji Flatsome gotovo sigurno prikazuje)
add_action('woocommerce_after_cart', function () {
    if ( ! function_exists('WC') || ! WC()->cart || WC()->cart->is_empty() ) return;

    $nonce = wp_create_nonce('aw_inquiry_cart');

    echo '<div class="aw-inquiry-cart" style="margin-top:16px; padding:16px; border:1px solid rgba(0,0,0,.08); border-radius:12px;">';
    echo '<h3 style="margin:0 0 10px;">Zatraži ponudu</h3>';

    echo '<form method="post" action="'. esc_url( admin_url('admin-post.php') ) .'">';
    echo '<input type="hidden" name="action" value="aw_cart_inquiry_submit">';
    echo '<input type="hidden" name="_wpnonce" value="'. esc_attr($nonce) .'">';

    echo '<p style="margin:0 0 10px;"><label>Ime i prezime<br>';
    echo '<input required name="aw_name" type="text" style="width:100%; max-width:520px;"></label></p>';

    echo '<p style="margin:0 0 10px;"><label>Email<br>';
    echo '<input required name="aw_email" type="email" style="width:100%; max-width:520px;"></label></p>';

    echo '<p style="margin:0 0 10px;"><label>Telefon<br>';
    echo '<input name="aw_phone" type="text" style="width:100%; max-width:520px;"></label></p>';

    echo '<p style="margin:0 0 12px;"><label>Poruka (opcionalno)<br>';
    echo '<textarea name="aw_message" rows="4" style="width:100%; max-width:720px;"></textarea></label></p>';

    echo '<button type="submit" class="button alt" style="padding:.9em 1.2em;">Pošalji upit</button>';
    echo '</form>';
    echo '</div>';
}, 20);

// 4) Handler: pošalji mail sa stavkama košarice
add_action('admin_post_nopriv_aw_cart_inquiry_submit', 'aw_cart_inquiry_submit');
add_action('admin_post_aw_cart_inquiry_submit', 'aw_cart_inquiry_submit');

function aw_cart_inquiry_submit() {
    if ( ! isset($_POST['_wpnonce']) || ! wp_verify_nonce($_POST['_wpnonce'], 'aw_inquiry_cart') ) {
        wp_die('Neispravan zahtjev (nonce).');
    }
    if ( ! function_exists('WC') || ! WC()->cart || WC()->cart->is_empty() ) {
        wp_safe_redirect(wc_get_cart_url());
        exit;
    }

    $name    = sanitize_text_field($_POST['aw_name'] ?? '');
    $email   = sanitize_email($_POST['aw_email'] ?? '');
    $phone   = sanitize_text_field($_POST['aw_phone'] ?? '');
    $message = sanitize_textarea_field($_POST['aw_message'] ?? '');

    if ( ! $name || ! is_email($email) ) {
        wp_safe_redirect( add_query_arg('inquiry', 'invalid', wc_get_cart_url()) );
        exit;
    }

    $to = get_option('admin_email');
    $subject = 'Upit s weba (košarica) – ' . wp_specialchars_decode(get_bloginfo('name'), ENT_QUOTES);

    $lines = [];
    $lines[] = "PODACI KUPCA";
    $lines[] = "Ime: {$name}";
    $lines[] = "Email: {$email}";
    if ($phone) $lines[] = "Telefon: {$phone}";
    $lines[] = "";

    if ($message) {
        $lines[] = "PORUKA";
        $lines[] = $message;
        $lines[] = "";
    }

    $lines[] = "ARTIKLI U KOŠARICI";
    $lines[] = str_repeat('-', 40);

    foreach ( WC()->cart->get_cart() as $cart_item ) {
        $product = $cart_item['data'] ?? null;
        if ( ! $product || ! is_a($product, 'WC_Product') ) continue;

        $qty = (int) ($cart_item['quantity'] ?? 1);
        $sku = (string) $product->get_sku();
        $pname = (string) $product->get_name();
        $url = get_permalink($product->get_id());

        $lines[] = $pname . ($sku ? " (SKU: {$sku})" : "");
        $lines[] = "Količina: {$qty}";
        $lines[] = "Link: {$url}";
        $lines[] = "";
    }

    $body = implode("\n", $lines);

    $headers = [
        'Content-Type: text/plain; charset=UTF-8',
        'Reply-To: ' . $name . ' <' . $email . '>',
    ];

    $sent = wp_mail($to, $subject, $body, $headers);

    if ($sent) {
        WC()->cart->empty_cart(); // makni ovu liniju ako želiš da košarica ostane
        wp_safe_redirect( add_query_arg('inquiry', 'sent', wc_get_cart_url()) );
        exit;
    }

    wp_safe_redirect( add_query_arg('inquiry', 'fail', wc_get_cart_url()) );
    exit;
}

// 5) Poruke na košarici
add_action('woocommerce_before_cart', function () {
    if ( empty($_GET['inquiry']) ) return;
    $v = sanitize_text_field($_GET['inquiry']);

    if ($v === 'sent') wc_print_notice('Upit je poslan. Javimo se uskoro.', 'success');
    if ($v === 'fail') wc_print_notice('Upit nije poslan. Pokušajte ponovno.', 'error');
    if ($v === 'invalid') wc_print_notice('Provjerite ime i email pa pokušajte ponovno.', 'error');
}, 5);