<?php
declare(strict_types=1);

use PHPUnit\Framework\TestCase;

/**
 * Tests for WPDO_Zone_Hot — flat-column custom tables for search/filter fields.
 *
 * Uses an in-memory mock to intercept $wpdb calls.
 */
class ZoneHotTest extends TestCase {

	/** Last SQL query string passed to $wpdb->query(). */
	public static string $last_query = '';

	/** Arguments passed to $wpdb->delete(). */
	public static array $last_delete = [];

	/** Return value for get_var mock. */
	public static ?string $get_var_return = null;

	/** Return value for get_row mock. */
	public static mixed $get_row_return = null;

	protected function setUp(): void {
		self::$last_query    = '';
		self::$last_delete   = [];
		self::$get_var_return = null;
		self::$get_row_return = null;
		$this->setup_wpdb_mock();
	}

	private function setup_wpdb_mock(): void {
		global $wpdb;

		$wpdb = new class {
			public string $prefix = 'wp_';

			public function prepare( string $sql, ...$args ): string {
				$i = 0;
				return preg_replace_callback( '/%([sd])/', function ( $m ) use ( &$i, $args ) {
					$val = $args[ $i++ ] ?? '';
					return $m[1] === 'd' ? (string) (int) $val : "'" . addslashes( (string) $val ) . "'";
				}, $sql );
			}

			public function get_var( string $sql ): ?string {
				return ZoneHotTest::$get_var_return;
			}

			public function get_row( string $sql, $output = OBJECT ) {
				return ZoneHotTest::$get_row_return;
			}

			public function get_results( string $sql, $output = OBJECT ): array {
				return [];
			}

			public function insert( string $table, array $data, $format = null ): int|false {
				return 1;
			}

			public function update( string $table, array $data, array $where, $format = null, $where_format = null ): int|false {
				return 1;
			}

			public function delete( string $table, array $where, $format = null ): int|false {
				ZoneHotTest::$last_delete = [ 'table' => $table, 'where' => $where ];
				return 1;
			}

			public function query( string $sql ): int|bool {
				ZoneHotTest::$last_query = $sql;
				return 1;
			}
		};
	}

	// ── table() ──────────────────────────────────────────────────────────────

	public function test_table_returns_prefixed_name(): void {
		$this->assertSame( 'wp_wpdo_hot_hp_listing', WPDO_Zone_Hot::table( 'hp_listing' ) );
	}

	public function test_table_sanitizes_post_type(): void {
		// The test sanitize_key stub strips non-[a-z0-9_-] chars then lowercases.
		// 'HP Listing!' → strip uppercase H,P + space + '!' → 'isting' → lower → 'isting'.
		$sanitized = sanitize_key( 'HP Listing!' );
		$this->assertSame( 'wp_wpdo_hot_' . $sanitized, WPDO_Zone_Hot::table( 'HP Listing!' ) );
	}

	// ── get() ─────────────────────────────────────────────────────────────────

	public function test_get_returns_null_when_row_missing(): void {
		self::$get_var_return = null;
		$result = WPDO_Zone_Hot::get( 1, 'hp_listing', 'hp_price' );
		$this->assertNull( $result );
	}

	public function test_get_returns_value_from_db(): void {
		self::$get_var_return = '42';
		$result = WPDO_Zone_Hot::get( 1, 'hp_listing', 'hp_price' );
		$this->assertSame( '42', $result );
	}

	// ── get_row() ────────────────────────────────────────────────────────────

	public function test_get_row_returns_null_when_missing(): void {
		self::$get_row_return = null;
		$result = WPDO_Zone_Hot::get_row( 1, 'hp_listing' );
		$this->assertNull( $result );
	}

	public function test_get_row_returns_array(): void {
		$expected             = [ 'post_id' => 1, 'hp_price' => '100', 'hp_location' => 'NYC' ];
		self::$get_row_return = $expected;
		$result               = WPDO_Zone_Hot::get_row( 1, 'hp_listing' );
		$this->assertSame( $expected, $result );
	}

	// ── set() ─────────────────────────────────────────────────────────────────

	public function test_set_executes_upsert_query(): void {
		WPDO_Zone_Hot::set( 5, 'hp_listing', 'hp_price', '99' );
		$this->assertNotEmpty( self::$last_query, 'Expected $wpdb->query() to be called' );
		$this->assertStringContainsString( 'ON DUPLICATE KEY UPDATE', self::$last_query );
	}

	// ── set_many() ───────────────────────────────────────────────────────────

	public function test_set_many_includes_all_columns_in_upsert(): void {
		WPDO_Zone_Hot::set_many( 7, 'hp_listing', [
			'hp_price'    => '150',
			'hp_location' => 'LA',
			'hp_category' => '3',
		] );
		$this->assertNotEmpty( self::$last_query );
		$this->assertStringContainsString( 'hp_price', self::$last_query );
		$this->assertStringContainsString( 'hp_location', self::$last_query );
		$this->assertStringContainsString( 'hp_category', self::$last_query );
	}

	// ── delete() ─────────────────────────────────────────────────────────────

	public function test_delete_calls_wpdb_delete(): void {
		WPDO_Zone_Hot::delete( 42, 'hp_listing' );
		$this->assertNotEmpty( self::$last_delete, 'Expected $wpdb->delete() to be called' );
		$this->assertSame( 42, self::$last_delete['where']['post_id'] );
	}

	public function test_delete_table_name_contains_post_type(): void {
		WPDO_Zone_Hot::delete( 5, 'hp_vendor' );
		$this->assertStringContainsString( 'hp_vendor', self::$last_delete['table'] );
	}

	// ── Additional edge cases ─────────────────────────────────────────────────

	public function test_table_for_different_post_type(): void {
		$this->assertSame( 'wp_wpdo_hot_hp_vendor', WPDO_Zone_Hot::table( 'hp_vendor' ) );
	}
}