<?php
/**
 * Popup Ad Slot
 *
 * @package    AdX-Ad-Inserter
 * @subpackage Views/Slots
 */

defined( 'ABSPATH' ) || exit;

/**
 * Render popup ad slot.
 *
 * Trigger at configurable scroll percentage (default 50%).
 * Sizes: [[300,250],[336,280],[300,280],[250,250],[200,200]].
 * page_url = window.location.href.
 * CSS entirely in JS.
 * Modes:
 * - ONCE_PER_SESSION (default, only option).
 * - ONCE_PER_PAGE (commented out).
 *
 * @return void
 */
function adxbyms_render_popup_slot() {
	$enabled          = ( get_option( 'adxbyms_popup_enabled' ) === 'true' );
	$network_code_raw = get_option( 'adxbyms_popup_network_code', '' );
	$network_code     = sanitize_text_field( trim( (string) $network_code_raw ) );

	if ( ! $enabled || '' === $network_code ) {
		return;
	}

	// Read popup option; default to ONCE_PER_SESSION.
	$popup_option = 'ONCE_PER_SESSION'; // Forced to ONCE_PER_SESSION.

	// Read scroll trigger percentage; default to 60 (minimum).
	$scroll_trigger = absint( get_option( 'adxbyms_popup_scroll_trigger', 60 ) );
	if ( $scroll_trigger < 60 ) {
		$scroll_trigger = 60; // Minimum is 60%.
	}
	if ( $scroll_trigger > 100 ) {
		$scroll_trigger = 100; // Maximum is 100%.
	}
	$scroll_percentage = $scroll_trigger / 100; // Convert to decimal (50 -> 0.5).

	// Build config for JS (exact values you already use).
	// All values are sanitized: network_code (sanitize_text_field), popup_option (literal), scroll_percentage (calculated number).
	$config = array(
		'popup_option'   => sanitize_text_field( $popup_option ),  // "ONCE_PER_SESSION".
		'network_code'   => esc_js( $network_code ),  // Escaped for JavaScript context.
		'scroll_trigger' => (float) $scroll_percentage, // Scroll trigger as decimal (0.5 = 50%).
	);

	// IMPORTANT: wp_json_encode properly escapes JSON values.
	// All values in $config are already sanitized/escaped above.
	$config_js = 'window.ADXBYMS_POPUP_DATA = ' . wp_json_encode( $config, JSON_UNESCAPED_SLASHES ) . ';';

	// Register + enqueue the external JS file.
	// Path provided by you: ADXBYMS_URL . 'views/js/popup.js'.
	$popup_js_url = trailingslashit( ADXBYMS_URL ) . 'views/js/popup.js';

	wp_register_script(
		'adxbyms_popup_script',
		$popup_js_url,
		array( 'adxbyms-gpt' ),                // no deps; GPT loader stays inside popup.js.
		ADXBYMS_JS_VERSION,
		true                    // load in footer.
	);

	// Make sure data is available BEFORE popup.js executes.
	wp_add_inline_script( 'adxbyms_popup_script', $config_js, 'before' );

	// Enqueue the script.
	wp_enqueue_script( 'adxbyms_popup_script' );
}