<?php
declare(strict_types=1);

use PHPUnit\Framework\TestCase;

/**
 * `wp tmdo doctor` false alarms (2.2 PR-076).
 *
 * The user flat tables were a hard-coded list including wpdo_user_sso, a group
 * never registered: doctor reported it MISSING and failed on every site. The
 * tables now come from the registry; doctor also reports Promotion Guard
 * violations and the recorded drift status.
 */
class DoctorTest extends TestCase {

	private const HAVE = 'wp_itest_wpdo_user_dt_have';
	private const CORE = array( 'wp_itest_wpdo_migration_status', 'wp_itest_wpdo_user_points_ledger' );

	public static function setUpBeforeClass(): void {
		foreach ( array(
			'includes/adapters/interface-entity-adapter.php',
			'includes/adapters/class-tmdo-adapter-user.php',
			'includes/engine/class-tmdo-promotion-guard.php',
			'cli/class-tmdo-cli.php',
		) as $file ) {
			require_once WPDO_PLUGIN_DIR . $file;
		}
	}

	protected function setUp(): void {
		global $wpdb;
		self::drop();
		foreach ( array_merge( array( self::HAVE ), self::CORE ) as $table ) {
			$wpdb->query( "CREATE TABLE `{$table}` ( id BIGINT NOT NULL AUTO_INCREMENT, user_id BIGINT NOT NULL DEFAULT 0, PRIMARY KEY (id) ) ENGINE=InnoDB" );
		}

		$GLOBALS['_wp_options']    = array();
		$GLOBALS['_wp_cli_output'] = array();
		TMDO_Mode_Manager::reset_cache();
		WPDO_Entity_Registry::init();
		WPDO_Entity_Registry::register_adapter( 'user', new WPDO_Adapter_User() );
		WPDO_Entity_Registry::register_group( 'user', 'dt_have', array( array( 'key' => 'dt_a', 'type' => 'text' ) ) );
		WPDO_Schema_Manager::flush_table_exists_cache();
	}

	protected function tearDown(): void {
		self::drop();
		WPDO_Entity_Registry::init();
		TMDO_Mode_Manager::reset_cache();
	}

	private static function drop(): void {
		global $wpdb;
		foreach ( array_merge( array( self::HAVE ), self::CORE ) as $table ) {
			$wpdb->query( "DROP TABLE IF EXISTS `{$table}`" );
		}
	}

	private function cli_output(): string {
		return implode( "\n", $GLOBALS['_wp_cli_output'] ?? array() );
	}

	public function test_entity_tables_come_from_the_registry(): void {
		$ok = TMDO_CLI::check_entity_tables();

		$this->assertTrue( $ok, $this->cli_output() );
		$this->assertStringContainsString( '[OK] ' . self::HAVE, $this->cli_output() );
		$this->assertStringNotContainsString( 'wpdo_user_sso', $this->cli_output() );
	}

	public function test_a_registered_group_without_its_table_is_reported(): void {
		WPDO_Entity_Registry::register_group( 'user', 'dt_missing', array( array( 'key' => 'dt_b', 'type' => 'text' ) ) );

		$ok = TMDO_CLI::check_entity_tables();

		$this->assertFalse( $ok );
		$this->assertStringContainsString( '[MISSING] wp_itest_wpdo_user_dt_missing', $this->cli_output() );
	}

	public function test_reports_drifting_groups(): void {
		$GLOBALS['_wp_options']['wpdo_bridge_modes']        = array( 'user' => 'dual_write' );
		$GLOBALS['_wp_options'][ TMDO_Drift_Check::OPTION ] = array(
			'user' => array(
				'dt_have' => array(
					'miss'       => 1,
					'diff'       => 2,
					'extra'      => 0,
					'sample'     => 0,
					'checked_at' => '2026-09-27 00:00:00',
				),
			),
		);
		TMDO_Mode_Manager::reset_cache();

		TMDO_CLI::report_guard_and_drift();

		$this->assertStringContainsString( 'dt_have miss=1 diff=2 extra=0', $this->cli_output() );
		$this->assertStringContainsString( 'wp tmdo drift-check user --fix', $this->cli_output() );
	}

	public function test_ignores_the_record_of_a_group_no_longer_registered(): void {
		$GLOBALS['_wp_options']['wpdo_bridge_modes']        = array( 'user' => 'dual_write' );
		$GLOBALS['_wp_options'][ TMDO_Drift_Check::OPTION ] = array(
			'user' => array(
				'dt_have' => array(
					'miss'       => 0,
					'diff'       => 0,
					'extra'      => 0,
					'sample'     => 0,
					'checked_at' => '2026-09-27 00:00:00',
				),
				'dt_gone' => array(
					'miss'       => 3,
					'diff'       => 0,
					'extra'      => 0,
					'sample'     => 0,
					'checked_at' => '2026-09-20 00:00:00',
				),
			),
		);
		TMDO_Mode_Manager::reset_cache();

		TMDO_CLI::report_guard_and_drift();

		$this->assertStringContainsString( '[OK] user: 1 group(s) clean (oldest check 2026-09-27 00:00:00 UTC)', $this->cli_output() );
		$this->assertStringNotContainsString( 'dt_gone', $this->cli_output() );
	}

	public function test_reports_an_entity_never_checked(): void {
		$GLOBALS['_wp_options']['wpdo_bridge_modes'] = array( 'user' => 'dual_write' );
		TMDO_Mode_Manager::reset_cache();

		TMDO_CLI::report_guard_and_drift();

		$this->assertStringContainsString( 'user: never checked', $this->cli_output() );
		$this->assertStringContainsString( 'Promotion Guard: no violation', $this->cli_output() );
	}
}