<?php
/**
 * AdSense Placement - Helper Functions
 *
 * Funciones para usar en templates:
 * - roi_render_ad_slot('post-top')
 * - roi_render_rail_ads() - Para los margenes laterales del viewport
 * - roi_should_disable_auto_ads()
 */

if (!defined('ABSPATH')) {
    exit;
}

/**
 * Renderiza un slot de anuncio en una ubicacion
 *
 * NOTA DIP: El renderer se obtiene del DIContainer, NO se instancia directamente.
 * Esto cumple con el Principio de Inversion de Dependencias.
 */
function roi_render_ad_slot(string $location): string
{
    global $container;

    if ($container === null) {
        return '';
    }

    try {
        $repository = $container->getComponentSettingsRepository();
        $settings = $repository->getComponentSettings('adsense-placement');

        if (empty($settings)) {
            return '';
        }

        // Verificar exclusiones
        if (roi_is_ad_excluded($settings)) {
            return '';
        }

        // Obtener renderer desde DIContainer (DIP compliant)
        $renderer = $container->getAdsensePlacementRenderer();

        return $renderer->renderSlot($settings, $location);

    } catch (\Throwable $e) {
        if (defined('WP_DEBUG') && WP_DEBUG) {
            error_log('ROI AdSense: ' . $e->getMessage());
        }
        return '';
    }
}

/**
 * Verifica si el contenido actual esta excluido
 */
function roi_is_ad_excluded(array $settings): bool
{
    $forms = $settings['forms'] ?? [];

    // Excluir categorias
    $excludeCats = array_filter(array_map('trim', explode(',', $forms['exclude_categories'] ?? '')));
    if (!empty($excludeCats) && is_single()) {
        $postCats = wp_get_post_categories(get_the_ID());
        if (array_intersect($excludeCats, $postCats)) {
            return true;
        }
    }

    // Excluir tipos de post
    $excludeTypes = array_filter(array_map('trim', explode(',', $forms['exclude_post_types'] ?? '')));
    if (!empty($excludeTypes) && in_array(get_post_type(), $excludeTypes, true)) {
        return true;
    }

    // Excluir posts especificos
    $excludeIds = array_filter(array_map('trim', explode(',', $forms['exclude_post_ids'] ?? '')));
    if (!empty($excludeIds) && in_array((string)get_the_ID(), $excludeIds, true)) {
        return true;
    }

    return false;
}

/**
 * Renderiza los Rail Ads (margenes laterales del viewport)
 * Se llama desde wp_footer para inyectar al final del body
 *
 * NOTA DIP: El renderer se obtiene del DIContainer, NO se instancia directamente.
 */
function roi_render_rail_ads(): string
{
    global $container;

    if ($container === null) {
        return '';
    }

    try {
        $repository = $container->getComponentSettingsRepository();
        $settings = $repository->getComponentSettings('adsense-placement');

        if (empty($settings)) {
            return '';
        }

        // Verificar exclusiones
        if (roi_is_ad_excluded($settings)) {
            return '';
        }

        // Obtener renderer desde DIContainer (DIP compliant)
        $renderer = $container->getAdsensePlacementRenderer();

        return $renderer->renderRailAds($settings);

    } catch (\Throwable $e) {
        if (defined('WP_DEBUG') && WP_DEBUG) {
            error_log('ROI AdSense Rail Ads: ' . $e->getMessage());
        }
        return '';
    }
}

/**
 * Hook para inyectar Rail Ads en el footer
 */
add_action('wp_footer', function() {
    // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
    echo roi_render_rail_ads();
}, 50);

/**
 * Verifica si se debe deshabilitar Auto Ads
 */
function roi_should_disable_auto_ads(): bool
{
    global $container;

    if ($container === null) {
        return false;
    }

    try {
        $repository = $container->getComponentSettingsRepository();
        $settings = $repository->getComponentSettings('adsense-placement');

        $isEnabled = ($settings['visibility']['is_enabled'] ?? false) === true;
        $disableAutoAds = ($settings['visibility']['disable_auto_ads'] ?? true) === true;

        return $isEnabled && $disableAutoAds;
    } catch (\Throwable $e) {
        return false;
    }
}

/**
 * Carga el script principal de AdSense
 */
function roi_enqueue_adsense_script(): void
{
    global $container;

    if ($container === null || is_admin()) {
        return;
    }

    try {
        $repository = $container->getComponentSettingsRepository();
        $settings = $repository->getComponentSettings('adsense-placement');

        if (!($settings['visibility']['is_enabled'] ?? false)) {
            return;
        }

        $publisherId = $settings['content']['publisher_id'] ?? '';
        if (empty($publisherId)) {
            return;
        }

        $delayEnabled = ($settings['forms']['delay_enabled'] ?? true) === true;

        if ($delayEnabled) {
            echo '<script type="text/plain" data-adsense-script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=' . esc_attr($publisherId) . '" crossorigin="anonymous"></script>' . "\n";
        } else {
            echo '<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=' . esc_attr($publisherId) . '" crossorigin="anonymous"></script>' . "\n";
        }

    } catch (\Throwable $e) {
        if (defined('WP_DEBUG') && WP_DEBUG) {
            error_log('ROI AdSense: ' . $e->getMessage());
        }
    }
}
add_action('wp_head', 'roi_enqueue_adsense_script', 5);