<?php
declare(strict_types=1);

use PHPUnit\Framework\TestCase;

/**
 * Integration test: uninstall refuses to drop tables while data lives only in them.
 *
 * Covers TMDO_Installer::uninstall_blockers() and, end to end, that uninstall.php
 * stops (wp_die) before touching any table or option.
 */
class UninstallGuardTest extends TestCase {

	private const TERM_MISC = 'wp_itest_wpdo_term_misc';

	public static function setUpBeforeClass(): void {
		global $wpdb;
		$wpdb->query(
			'CREATE TABLE IF NOT EXISTS `' . self::TERM_MISC . '` (
				term_id bigint(20) unsigned NOT NULL,
				meta_key varchar(191) NOT NULL,
				meta_value longtext,
				updated_at datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
				PRIMARY KEY (term_id, meta_key)
			) DEFAULT CHARACTER SET utf8mb4'
		);
	}

	protected function setUp(): void {
		global $wpdb;
		$wpdb->prefix  = 'wp_itest_';
		$wpdb->options = 'wp_itest_options';
		$wpdb->query( 'TRUNCATE TABLE `' . self::TERM_MISC . '`' );
		delete_option( 'wpdo_bridge_modes' );
		delete_option( 'wpdo_features' );
	}

	public function test_clean_site_has_no_blockers(): void {
		$this->assertSame( array(), TMDO_Installer::uninstall_blockers() );
	}

	public function test_aeav_only_mode_blocks(): void {
		update_option( 'wpdo_bridge_modes', array( 'post' => 'aeav_only', 'user' => 'dual_write' ) );

		$blockers = TMDO_Installer::uninstall_blockers();

		$this->assertCount( 1, $blockers );
		$this->assertStringContainsString( 'post', $blockers[0] );
	}

	public function test_modes_that_still_write_native_do_not_block(): void {
		update_option( 'wpdo_bridge_modes', array( 'user' => 'dual_write', 'term' => 'shadow_read', 'comment' => 'disabled' ) );

		$this->assertSame( array(), TMDO_Installer::uninstall_blockers() );
	}

	public function test_misc_rows_block(): void {
		global $wpdb;
		$wpdb->query( 'INSERT INTO `' . self::TERM_MISC . "` (term_id, meta_key, meta_value) VALUES (1, 'k', 'v')" );

		$blockers = TMDO_Installer::uninstall_blockers();

		$this->assertCount( 1, $blockers );
		$this->assertStringContainsString( 'wpdo_term_misc', $blockers[0] );
	}

	public function test_zone_module_past_cutover_blocks(): void {
		update_option( 'wpdo_features', array( 'hot_hp_listing' => 'complete', 'cold_hp_vendor' => 'cleanup', 'warm' => 'cutover' ) );

		$blockers = TMDO_Installer::uninstall_blockers();

		$this->assertCount( 2, $blockers );
		$this->assertStringContainsString( 'hot_hp_listing', implode( ' ', $blockers ) );
		$this->assertStringContainsString( 'cold_hp_vendor', implode( ' ', $blockers ) );
	}

	public function test_hpct_module_complete_does_not_block(): void {
		// HPCT modules live in hpct_* tables, which uninstall never drops.
		update_option( 'wpdo_features', array( 'reviews' => 'complete' ) );

		$this->assertSame( array(), TMDO_Installer::uninstall_blockers() );
	}

	public function test_uninstall_script_refuses_and_keeps_data(): void {
		global $wpdb;
		update_option( 'wpdo_bridge_modes', array( 'post' => 'aeav_only' ) );
		if ( ! defined( 'WP_UNINSTALL_PLUGIN' ) ) {
			define( 'WP_UNINSTALL_PLUGIN', '2meet-data-optimizer/2meet-data-optimizer.php' );
		}

		try {
			require TMDO_PATH . 'uninstall.php';
			$this->fail( 'uninstall.php should have stopped with wp_die()' );
		} catch ( RuntimeException $e ) {
			$this->assertStringContainsString( 'aeav_only', $e->getMessage() );
		}

		$this->assertSame( array( 'post' => 'aeav_only' ), get_option( 'wpdo_bridge_modes' ) );
		$this->assertSame( self::TERM_MISC, $wpdb->get_var( "SHOW TABLES LIKE '" . self::TERM_MISC . "'" ) );
	}

	public function test_uninstall_script_checks_every_site_on_multisite(): void {
		update_option( 'wpdo_bridge_modes', array( 'user' => 'aeav_only' ) );
		if ( ! defined( 'WP_UNINSTALL_PLUGIN' ) ) {
			define( 'WP_UNINSTALL_PLUGIN', '2meet-data-optimizer/2meet-data-optimizer.php' );
		}
		$GLOBALS['_wp_is_multisite'] = true;
		$GLOBALS['_wp_sites']        = array( 1, 3 );

		try {
			require TMDO_PATH . 'uninstall.php';
			$this->fail( 'uninstall.php should have stopped with wp_die()' );
		} catch ( RuntimeException $e ) {
			$this->assertStringContainsString( '站台 #1', $e->getMessage() );
			$this->assertStringContainsString( '站台 #3', $e->getMessage() );
		} finally {
			unset( $GLOBALS['_wp_is_multisite'], $GLOBALS['_wp_sites'] );
		}
	}
}