<?php
/**
 * MagicGEO API Handler
 *
 * Handles communication with the MagicGEO API.
 *
 * @package MagicGEO
 * @since   1.0.0
 */

// Prevent direct access.
defined( 'ABSPATH' ) || exit;

/**
 * MagicGEO API Class.
 */
class MagicGEO_API {

	/**
	 * API base URL.
	 *
	 * @var string
	 */
	private $api_url;

	/**
	 * API key.
	 *
	 * @var string
	 */
	private $api_key;

	/**
	 * Constructor.
	 */
	public function __construct() {
		$this->api_url = MAGICGEO_API_URL;
		$this->api_key = get_option( 'magicgeo_api_key', '' );
	}

	/**
	 * Check if API is configured.
	 *
	 * @return bool
	 */
	public function is_configured() {
		return ! empty( $this->api_key );
	}

	/**
	 * Make API request.
	 *
	 * @param string $endpoint API endpoint.
	 * @param array  $data     Request data.
	 * @param string $method   HTTP method.
	 * @return array|WP_Error Response data or error.
	 */
	public function request( $endpoint, $data = array(), $method = 'POST' ) {
		if ( ! $this->is_configured() ) {
			return new WP_Error( 'no_api_key', __( 'API key not configured.', 'magicgeo' ) );
		}

		$url = trailingslashit( $this->api_url ) . ltrim( $endpoint, '/' );

		$args = array(
			'method'  => $method,
			'timeout' => 60,
			'headers' => array(
				'Content-Type'  => 'application/json',
				'Authorization' => 'Bearer ' . $this->api_key,
				'apikey'        => $this->api_key,
			),
		);

		if ( ! empty( $data ) && in_array( $method, array( 'POST', 'PUT', 'PATCH' ), true ) ) {
			$args['body'] = wp_json_encode( $data );
		}

		$response = wp_remote_request( $url, $args );

		if ( is_wp_error( $response ) ) {
			return $response;
		}

		$body = wp_remote_retrieve_body( $response );
		$code = wp_remote_retrieve_response_code( $response );

		if ( $code >= 400 ) {
			return new WP_Error(
				'api_error',
				sprintf(
					/* translators: %d: HTTP status code */
					__( 'API request failed with status %d.', 'magicgeo' ),
					$code
				)
			);
		}

		return json_decode( $body, true );
	}

	/**
	 * Optimize a product.
	 *
	 * @param array $product_data Product data.
	 * @return array|WP_Error Optimization result or error.
	 */
	public function optimize_product( $product_data ) {
		return $this->request( 'woocommerce-optimize', $product_data );
	}

	/**
	 * Analyze a product.
	 *
	 * @param array $product_data Product data.
	 * @return array|WP_Error Analysis result or error.
	 */
	public function analyze_product( $product_data ) {
		return $this->request( 'woocommerce-analyze', $product_data );
	}

	/**
	 * Verify API connection.
	 *
	 * @return bool|WP_Error True on success, error on failure.
	 */
	public function verify_connection() {
		$result = $this->request( 'woocommerce-verify', array( 'test' => true ) );

		if ( is_wp_error( $result ) ) {
			return $result;
		}

		return true;
	}
}