<?php
declare(strict_types=1);

use PHPUnit\Framework\TestCase;

/**
 * The AddOn owns the HivePress entity groups core used to register.
 *
 * Their definitions are persisted (wpdo_registry_meta schema hash) and the
 * flat tables on live sites were built from core's version, so the AddOn must
 * register byte-identical definitions: any drift changes the schema hash and
 * would ALTER tables that hold aeav_only data once core stops registering
 * them (PR-020).
 */
class HivePressEntityGroupsTest extends TestCase {

	private const GROUPS = array(
		array( 'post', 'hp_listing_core' ),
		array( 'post', 'hp_request_core' ),
		array( 'post', 'hp_vendor_core' ),
		array( 'user', 'hp_user' ),
	);

	private function fresh_registry(): void {
		TMDO_Entity_Registry::init();
		TMDO_Entity_Registry::register_adapter( 'post', $this->createMock( TMDO_Entity_Adapter_Interface::class ) );
		TMDO_Entity_Registry::register_adapter( 'user', $this->createMock( TMDO_Entity_Adapter_Interface::class ) );
	}

	private function register_core(): void {
		TMDO_Post_Fields::register_entity_fields();
		TMDO_Member_Fields::register_entity_fields();
	}

	public function test_definitions_match_core_exactly(): void {
		$this->fresh_registry();
		$this->register_core();
		$core = array();
		foreach ( self::GROUPS as $g ) {
			$core[ $g[1] ] = TMDO_Entity_Registry::get_group_fields( $g[0], $g[1] );
		}

		$this->fresh_registry();
		TMDO_HivePress_Entity_Groups::register_entity_fields();

		foreach ( self::GROUPS as $g ) {
			$this->assertNotEmpty( $core[ $g[1] ], "core no longer registers {$g[1]}" );
			$this->assertSame( $core[ $g[1] ], TMDO_Entity_Registry::get_group_fields( $g[0], $g[1] ), "{$g[0]}/{$g[1]} drifted from core" );
		}
	}

	public function test_shared_keys_resolve_to_the_same_group_as_core(): void {
		// hp_status / hp_user / hp_view_count … appear in several post groups and
		// field_index is last-registered-wins, so registration order matters.
		$this->fresh_registry();
		$this->register_core();
		$core = array();
		foreach ( self::GROUPS as $g ) {
			foreach ( TMDO_Entity_Registry::get_group_keys( $g[0], $g[1] ) as $key ) {
				$core[ $g[0] . ':' . $key ] = TMDO_Entity_Registry::get_field( $g[0], $key )['group'];
			}
		}

		$this->fresh_registry();
		TMDO_HivePress_Entity_Groups::register_entity_fields();

		foreach ( $core as $id => $group ) {
			list( $type, $key ) = explode( ':', $id, 2 );
			$this->assertSame( $group, TMDO_Entity_Registry::get_field( $type, $key )['group'], $id );
		}
	}

	public function test_registering_alongside_core_raises_no_collision(): void {
		$this->fresh_registry();
		$this->register_core();

		TMDO_HivePress_Entity_Groups::register_entity_fields();
		( new TMDO_HivePress_Core_Adapter() )->on_register_entity_fields();

		$this->assertSame( array(), TMDO_Entity_Registry::get_collisions() );
	}
}