<?php
declare(strict_types=1);

use PHPUnit\Framework\TestCase;

/**
 * TMDO_Auto_Promoter promotes shadow_read → aeav_only only when the last drift
 * check of every group of the entity found nothing, within the last two days
 * (2.2 PR-075; decision 2026-09-27). No record means no promotion.
 */
class AutoPromoterDriftTest extends TestCase {

	private const TEN_DAYS_AGO = 864000;

	public static function setUpBeforeClass(): void {
		require_once TMDO_PATH . 'includes/engine/class-tmdo-auto-promoter.php';
	}

	protected function setUp(): void {
		ini_set( 'error_log', '/dev/null' );
		$GLOBALS['_wp_options']          = array( 'wpdo_bridge_modes' => array( 'user' => 'shadow_read' ) );
		$GLOBALS['_wp_filter_callbacks'] = array();
		$GLOBALS['_wp_current_user_can'] = array( 'manage_options' => true );
		TMDO_Mode_Manager::reset_cache();
		TMDO_Entity_Registry::init();
		TMDO_Entity_Registry::register_adapter( 'user', new TMDO_Adapter_User() );
		TMDO_Entity_Registry::register_group( 'user', 'ap_one', array( array( 'key' => 'ap_a', 'type' => 'text' ) ) );
		TMDO_Entity_Registry::register_group( 'user', 'ap_two', array( array( 'key' => 'ap_b', 'type' => 'text' ) ) );
	}

	protected function tearDown(): void {
		TMDO_Entity_Registry::init();
		TMDO_Mode_Manager::reset_cache();
	}

	private function drift( string $group, int $diff, int $age = 0 ): void {
		$GLOBALS['_wp_options'][ TMDO_Drift_Check::OPTION ]['user'][ $group ] = array(
			'miss'       => 0,
			'diff'       => $diff,
			'extra'      => 0,
			'sample'     => TMDO_Drift_Check::CRON_SAMPLE,
			'checked_at' => gmdate( 'Y-m-d H:i:s', time() - $age ),
		);
	}

	private function check(): string {
		return TMDO_Auto_Promoter::check_entity( 'user', 7, array( 'user' => time() - self::TEN_DAYS_AGO ) );
	}

	public function test_promotes_when_every_group_checked_clean_recently(): void {
		$this->drift( 'ap_one', 0 );
		$this->drift( 'ap_two', 0 );

		$this->assertSame( 'promoted', $this->check() );
		$this->assertSame( 'aeav_only', TMDO_Mode_Manager::get( 'user' ) );
	}

	public function test_drift_in_one_group_blocks_promotion(): void {
		$this->drift( 'ap_one', 0 );
		$this->drift( 'ap_two', 1 );

		$this->assertSame( 'drift_not_clean', $this->check() );
		$this->assertSame( 'shadow_read', TMDO_Mode_Manager::get( 'user' ) );
	}

	public function test_a_group_never_checked_blocks_promotion(): void {
		$this->drift( 'ap_one', 0 );

		$this->assertSame( 'drift_not_clean', $this->check() );
	}

	public function test_a_check_older_than_two_days_blocks_promotion(): void {
		$this->drift( 'ap_one', 0 );
		$this->drift( 'ap_two', 0, 3 * DAY_IN_SECONDS );

		$this->assertSame( 'drift_not_clean', $this->check() );
	}
}