<?php

namespace ACRKit\Support;

use ACRKit\Enum\CartStatus;
use ACRKit\Enum\ClientAction;
use WC_Product_Variation;

class Cart {

	public static function getCartId() {
		return WC()->session->get( 'acr_kit_cart_id' );
	}

	protected static function setCartId( $cartId ) {
		WC()->session->set( 'acr_kit_cart_id', $cartId );
	}

	protected static function resetCartId() {
		WC()->session->set( 'acr_kit_cart_id', null );
	}

	public static function registerHooks(): void {
		add_action( 'woocommerce_cart_updated', array( self::class, 'handleCartChanges' ) );
		add_action( 'woocommerce_store_api_checkout_order_processed', array( self::class, 'afterCheckout' ) );
		add_action( 'woocommerce_checkout_order_created', array( self::class, 'afterCheckout' ) );
		add_action( 'template_redirect', array( self::class, 'handleCartAction' ) );
	}

	public static function handleCartChanges() {
		if ( ! WC()->cart ) {
			return;
		}

		$cartId = self::getCartId();

		$payload = array(
			'lineItems'  => self::getCartItems(),
			'isGuest'    => get_current_user_id() === 0,
			'firstName'  => WC()->customer->get_billing_first_name() ?: WC()->customer->get_first_name(), // phpcs:ignore Universal.Operators.DisallowShortTernary.Found
			'lastName'   => WC()->customer->get_billing_last_name() ?: WC()->customer->get_last_name(), // phpcs:ignore Universal.Operators.DisallowShortTernary.Found
			'email'      => WC()->customer->get_billing_email() ?: WC()->customer->get_email(), // phpcs:ignore Universal.Operators.DisallowShortTernary.Found
			'phone'      => WC()->customer->get_billing_phone(),
			'currency'   => get_woocommerce_currency(),
			'totalPrice' => WC()->cart->get_total( 'edit' ) ?: 0, // phpcs:ignore Universal.Operators.DisallowShortTernary.Found
		);

		if ( empty( $payload['lineItems'] ) ) {
			return;
		}

		$hash = md5( wp_json_encode( $payload ) );

		if ( WC()->session->get( 'acr_kit_cart_hash' ) === $hash ) {
			return;
		}

		WC()->session->set( 'acr_kit_cart_hash', $hash );

		$id = Api::sendCart( $cartId, $payload );

		if ( ! empty( $id ) ) {
			self::setCartId( $id );
		}
	}

	protected static function getCartItems(): array {
		return array_map(
			function ( $item ) {
				/** @var \WC_Product $product*/
				$product = $item['data'];
				$data    = array(
					'id'          => (string) $item['product_id'],
					'name'        => $product->get_name(),
					'price'       => (float) $product->get_price(),
					'quantity'    => (int) $item['quantity'],
					'tax'         => $item['line_tax'] ?? 0,
					'thumbnailSm' => wp_get_attachment_image_url( $product->get_image_id(), 'woocommerce_gallery_thumbnail' ),
					'thumbnailMd' => wp_get_attachment_image_url( $product->get_image_id(), 'woocommerce_single' ),
				);

				if ( $product instanceof WC_Product_Variation ) {
					$data['variationId'] = (string) $item['variation_id'];
					$data['variation']   = $item['variation'];
				}

				return $data;
			},
			array_values( WC()->cart->get_cart() )
		);
	}

	public static function afterCheckout() {
		$id = self::getCartId();
		if ( is_null( $id ) ) {
			return;
		}

		self::resetCartId();
		WC()->session->set( 'acr_kit_cart_hash', null );

		$recoveredBy = WC()->session->get( 'acr_kit_recovered_by' );

		if ( ! empty( $recoveredBy ) ) {
			WC()->session->set( 'acr_kit_recovered_by', null );
		}

		Api::cartMarkAsCompleted( $id, $recoveredBy );
	}

	public static function restoreCart() {
		// Its came from public endpoint, which was sent to email
		if ( empty( $_GET['acr_kit_cart_id'] ) || ! WC()->cart ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
			return;
		}

        // phpcs:ignore WordPress.Security.NonceVerification.Recommended
		$cartId = sanitize_text_field( wp_unslash( $_GET['acr_kit_cart_id'] ) );

		$response = Api::blocking()->get( '/api/v1/carts/' . $cartId );

		if ( is_wp_error( $response ) || wp_remote_retrieve_response_code( $response ) !== 200 ) {
			return;
		}

		$cart = json_decode( wp_remote_retrieve_body( $response ), true )['data'];

		if ( CartStatus::ABANDONED !== $cart['status'] ) {
			wp_safe_redirect( get_home_url() );
			exit;
		}

		WC()->cart->empty_cart();

		self::setCartId( $cartId );

		foreach ( $cart['lineItems'] as $item ) {
			WC()->cart->add_to_cart(
				$item['id'],
				$item['quantity'],
				isset( $item['variationId'] ) ? (int) $item['variationId'] : 0,
				$item['variation'] ?? array()
			);
		}

        // phpcs:ignore WordPress.Security.NonceVerification.Recommended
		if ( ! empty( $_GET['acr_kit_recovered_id'] ) ) {
            // phpcs:ignore WordPress.Security.NonceVerification.Recommended
			$recoveryId = sanitize_text_field( wp_unslash( $_GET['acr_kit_recovered_id'] ) );

			WC()->session->set( 'acr_kit_recovered_by', $recoveryId );

			Api::trackClick( $recoveryId, $cartId );
		}

		wp_safe_redirect( wc_get_checkout_url() );
		exit;
	}

	public static function handleCartAction() {
		// it came from an email link
        // phpcs:ignore WordPress.Security.NonceVerification.Recommended
		if ( empty( $_GET['acr_kit_action'] ) ) {
			return;
		}

        // phpcs:ignore WordPress.Security.NonceVerification.Recommended
		switch ( $_GET['acr_kit_action'] ) {
			case ClientAction::RECOVER:
				self::restoreCart();
				break;
			case ClientAction::OPEN_EMAIL:
				Email::openTrack();
				break;
			case ClientAction::CLICK_EMAIL:
				Email::clickTrack();
				break;
			case ClientAction::UNSUBSCRIBE:
				Email::unsubscribe();
				break;
		}
	}
}