<?php
/**
 * Tests for REST package receive/status controller.
 *
 * @package WPContentSync
 */

namespace WPContentSync\Tests\Unit\Rest;

use PHPUnit\Framework\TestCase;
use WPContentSync\Package\PackageChecksum;
use WPContentSync\Package\PackageValidator;
use WPContentSync\Rest\RestPackageController;

class RestPackageControllerTest extends TestCase {
	protected function setUp(): void {
		parent::setUp();

		unset( $GLOBALS['wpcs_rest_routes'], $GLOBALS['wpcs_current_user_can'], $GLOBALS['wpcs_test_actions'] );
	}

	protected function tearDown(): void {
		unset( $GLOBALS['wpcs_rest_routes'], $GLOBALS['wpcs_current_user_can'], $GLOBALS['wpcs_test_actions'] );

		parent::tearDown();
	}

	public function test_it_hooks_route_registration_to_rest_api_init(): void {
		$controller = new RestPackageController( new PackageValidator() );
		$controller->register();

		self::assertSame(
			array( $controller, 'registerRoutes' ),
			$GLOBALS['wpcs_test_actions']['rest_api_init'][0]
		);
	}

	public function test_it_registers_status_and_package_routes(): void {
		$controller = new RestPackageController( new PackageValidator() );
		$controller->registerRoutes();

		self::assertArrayHasKey( 'wp-content-sync/v1/status', $GLOBALS['wpcs_rest_routes'] );
		self::assertArrayHasKey( 'wp-content-sync/v1/package', $GLOBALS['wpcs_rest_routes'] );
	}

	public function test_it_requires_manage_options_permission(): void {
		$GLOBALS['wpcs_current_user_can']['manage_options'] = false;
		$controller = new RestPackageController( new PackageValidator() );

		self::assertFalse( $controller->canReceivePackage() );
	}

	public function test_it_returns_status_payload(): void {
		$controller = new RestPackageController( new PackageValidator() );

		self::assertSame(
			array(
				'ok'      => true,
				'plugin'  => 'wp-content-sync',
				'version' => WPCS_VERSION,
			),
			$controller->status()
		);
	}

	public function test_it_accepts_valid_packages(): void {
		$controller = new RestPackageController( new PackageValidator() );

		self::assertSame(
			$this->acceptedResponse(),
			$controller->receivePackage(
				array(
					'package' => $this->validPackage(),
				)
			)
		);
	}

	public function test_it_accepts_rest_request_like_objects(): void {
		$controller = new RestPackageController( new PackageValidator() );
		$request    = new class(
			array(
				'package' => $this->validPackage(),
			)
		) {
			/** @var array<string, mixed> */
			private array $params;

			/**
			 * @param array<string, mixed> $params Request params.
			 */
			public function __construct( array $params ) {
				$this->params = $params;
			}

			/**
			 * @return array<string, mixed>
			 */
			public function get_json_params(): array {
				return $this->params;
			}
		};

		self::assertSame( $this->acceptedResponse(), $controller->receivePackage( $request ) );
	}

	public function test_it_rejects_invalid_package_shapes(): void {
		$controller = new RestPackageController( new PackageValidator() );

		self::assertSame(
			array(
				'accepted' => false,
				'errors'   => array( 'package is required and must be an object.' ),
			),
			$controller->receivePackage( array() )
		);
	}

	/**
	 * @return array<string, mixed>
	 */
	private function acceptedResponse(): array {
		return array(
			'accepted'       => true,
			'schema_version' => '1.0',
			'manifest'       => array(
				'posts'             => 0,
				'terms'             => 0,
				'media'             => 0,
				'custom_post_types' => 0,
			),
		);
	}

	/**
	 * @return array<string, mixed>
	 */
	private function validPackage(): array {
		$records = array(
			'posts'             => array(),
			'terms'             => array(),
			'media'             => array(),
			'custom_post_types' => array(),
		);

		return array(
			'schema_version' => '1.0',
			'generated_at'   => '2026-04-28T12:00:00+00:00',
			'source'         => array(
				'site_url' => 'https://example.test',
				'name'     => 'Example',
			),
			'destination'    => array(
				'site_url' => 'https://destination.test',
				'name'     => 'Destination',
			),
			'manifest'       => array(
				'posts'             => 0,
				'terms'             => 0,
				'media'             => 0,
				'custom_post_types' => 0,
			),
			'records'        => $records,
			'checksums'      => array(
				'records' => PackageChecksum::records( $records ),
			),
		);
	}
}