<?php

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

if ( ! class_exists( 'AIEO_OpenAI_Pixel_Display', false ) ) {

class AIEO_OpenAI_Pixel_Display {

	const HANDLE  = 'aieo-openai-pixel';
	const SDK_SRC = 'https://bzrcdn.openai.com/sdk/oaiq.min.js';

	
	private static $instance = null;

	public static function instance() {
		if ( null === self::$instance ) {
			self::$instance = new self();
		}
		return self::$instance;
	}

	public function register_display() {
		add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_base' ) );
		add_action( 'woocommerce_thankyou', array( $this, 'on_thankyou' ), 22, 1 );
	}

	
	private function config() {
		$all = get_option( 'aieo_dmm_conversions', array() );
		return is_array( $all ) ? $all : array();
	}

	
	private function browser_enabled() {
		$c    = $this->config();
		$mode = isset( $c['openai_mode'] ) ? (string) $c['openai_mode'] : 'off';
		return in_array( $mode, array( 'browser', 'both' ), true )
			&& ! empty( $c['openai_pixel_id'] );
	}

	private function pixel_id() {
		$c = $this->config();
		return isset( $c['openai_pixel_id'] ) ? (string) $c['openai_pixel_id'] : '';
	}

	
	public function enqueue_base() {
		if ( ! $this->browser_enabled() ) {
			return;
		}

		$pixel = $this->pixel_id();
		if ( '' === $pixel ) {
			return;
		}

		wp_register_script( self::HANDLE, '', array(), defined( 'AIEO_VERSION' ) ? AIEO_VERSION : '1.0', true );
		wp_enqueue_script( self::HANDLE );

		$boot = "(function(w,d,s,u){"
			
			
			. "if(w.oaiq){w.aieoOpenAIStoodDown=1;return;}"
			. "var q=function(){q.q.push(arguments);};q.q=[];w.oaiq=q;"
			. "var js=d.createElement(s);js.async=true;js.src=u;"
			. "var f=d.getElementsByTagName(s)[0];f.parentNode.insertBefore(js,f);"
			. "}(window,document,'script'," . wp_json_encode( self::SDK_SRC, JSON_UNESCAPED_SLASHES ) . "));";

		$init = "if(window.oaiq&&!window.aieoOpenAIStoodDown){"
			. "oaiq('init',{pixelId:" . wp_json_encode( $pixel ) . "});"
			. "oaiq('consent',true);"
			. "oaiq('measureSingle'," . wp_json_encode( $pixel ) . ",'page_viewed',{type:'customer_action'});"
			. "}";

		
		
		
		
		$gated = '(function aieoOpenAIRun(){if(window.aieoOpenAIStarted){return;}'
			. "if(typeof window.aieoConsentFor!=='function'||!window.aieoConsentFor('marketing')){"
			. "if(typeof window.aieoOnConsent==='function'&&!aieoOpenAIRun.waiting){aieoOpenAIRun.waiting=1;window.aieoOnConsent(aieoOpenAIRun);}return;}"
			. 'window.aieoOpenAIStarted=1;' . $boot . $init . '})();';

		wp_add_inline_script( self::HANDLE, $gated );
	}

	
	public function on_thankyou( $order_id ) {
		if ( ! $this->browser_enabled() || ! function_exists( 'wc_get_order' ) ) {
			return;
		}
		$order = wc_get_order( $order_id );
		if ( ! $order ) {
			return;
		}

		$pixel = $this->pixel_id();
		if ( '' === $pixel ) {
			return;
		}

		$currency = $order->get_currency();
		$eid      = (string) $order->get_meta( AIEO_OpenAI_Events_Sender::EVENT_ID_META );
		if ( '' === $eid ) {
			$eid = wp_generate_uuid4();
			$order->update_meta_data( AIEO_OpenAI_Events_Sender::EVENT_ID_META, $eid );
			$order->save();
		}

		$contents = array();
		foreach ( $order->get_items() as $item ) {
			$product = method_exists( $item, 'get_product' ) ? $item->get_product() : null;
			$qty     = (int) $item->get_quantity();
			$line    = (float) $item->get_total();
			$contents[] = array(
				'id'           => $product ? (string) $product->get_id() : '',
				'name'         => (string) $item->get_name(),
				'content_type' => 'product',
				'quantity'     => $qty,
				
				
				'amount'       => AIEO_OpenAI_Money::to_minor( $qty > 0 ? $line / $qty : $line, $currency ),
				'currency'     => $currency,
			);
		}

		$data = array(
			'type'     => 'contents',
			'amount'   => AIEO_OpenAI_Money::to_minor( $order->get_total(), $currency ),
			'currency' => $currency,
			'contents' => $contents,
		);

		$js = "if(window.oaiq&&!window.aieoOpenAIStoodDown){"
			. "oaiq('measureSingle'," . wp_json_encode( $pixel ) . ",'order_created',"
			. wp_json_encode( $data ) . ",{event_id:" . wp_json_encode( $eid ) . "});"
			. "}";

		wp_add_inline_script( self::HANDLE, $js );
	}
}

}