<?php

namespace WPContentSync\Tests\Unit\Transport;

use PHPUnit\Framework\TestCase;
use WPContentSync\Package\ContentPackage;
use WPContentSync\Package\PackageChecksum;
use WPContentSync\Transport\RestTransportClient;
use WPContentSync\Transport\RestTransportException;

class RestTransportClientTest extends TestCase {
	protected function tearDown(): void {
		unset( $GLOBALS['wpcs_http_response'], $GLOBALS['wpcs_last_http_request'] );

		parent::tearDown();
	}

	public function test_it_tests_connections_with_application_password_auth(): void {
		$client = new RestTransportClient();

		self::assertTrue( $client->testConnection( 'https://destination.test', 'codex', 'app-pass' ) );

		self::assertSame( 'GET', $GLOBALS['wpcs_last_http_request']['method'] );
		self::assertSame( 'https://destination.test/wp-json/wp-content-sync/v1/status', $GLOBALS['wpcs_last_http_request']['url'] );
		// phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode -- Expected Basic auth value for application-password requests.
		self::assertSame( 'Basic ' . base64_encode( 'codex:app-pass' ), $GLOBALS['wpcs_last_http_request']['args']['headers']['Authorization'] );
	}

	public function test_it_sends_packages_to_receive_endpoint(): void {
		$client = new RestTransportClient();

		self::assertTrue( $client->sendPackage( 'https://destination.test/', 'codex', 'app-pass', $this->package() ) );

		self::assertSame( 'POST', $GLOBALS['wpcs_last_http_request']['method'] );
		self::assertSame( 'https://destination.test/wp-json/wp-content-sync/v1/package', $GLOBALS['wpcs_last_http_request']['url'] );
		self::assertStringContainsString( '"package"', $GLOBALS['wpcs_last_http_request']['args']['body'] );
		self::assertSame( 'application/json', $GLOBALS['wpcs_last_http_request']['args']['headers']['Content-Type'] );
	}

	public function test_it_throws_authentication_failures_for_unauthorized_status(): void {
		$GLOBALS['wpcs_http_response'] = array(
			'response' => array( 'code' => 401 ),
			'body'     => '{"message":"Unauthorized"}',
		);
		$client                        = new RestTransportClient();

		$this->expectException( RestTransportException::class );
		$this->expectExceptionMessage( 'REST authentication failed.' );

		$client->testConnection( 'https://destination.test', 'codex', 'bad-pass' );
	}

	public function test_it_throws_remote_rejected_for_invalid_package_response(): void {
		$GLOBALS['wpcs_http_response'] = array(
			'response' => array( 'code' => 400 ),
			'body'     => '{"message":"Invalid package"}',
		);
		$client                        = new RestTransportClient();

		$this->expectException( RestTransportException::class );
		$this->expectExceptionMessage( 'Invalid package' );

		$client->sendPackage( 'https://destination.test', 'codex', 'app-pass', $this->package() );
	}

	private function package(): ContentPackage {
		$records = array(
			'posts'             => array(),
			'terms'             => array(),
			'media'             => array(),
			'custom_post_types' => array(),
		);

		return ContentPackage::fromArray(
			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 ),
				),
			)
		);
	}
}