<?php

declare( strict_types=1 );

namespace Tests\Functions;

use Hosterra\FluxBuilder\Functions\Map;
use Hosterra\FluxBuilder\Expression\Map as MapExpression;
use Hosterra\FluxBuilder\Expression\Selection as SelectionExpression;
use PHPUnit\Framework\TestCase;

final class MapFunctionTest extends TestCase {
	public function testSimpleMap() {
		$expression = new Map( 'r with name: r.user' );

		$query = '|> map(fn: (r) => ({ r with name: r.user })) ';

		$this->assertEquals( $query, $expression->__toString() );
	}

	public function testWithMapObject() {
		$expression = new Map( MapExpression::with( 'name', 'r.user' ) );

		$query = '|> map(fn: (r) => ({ r with name: r.user })) ';

		$this->assertEquals( $query, $expression->__toString() );
	}

	public function testRecordMapObject() {
		$expression = new Map( MapExpression::columns( [
			'time'   => 'r._time',
			'source' => 'r.tag',
			'alert'  => SelectionExpression::if( 'r._value > 10' )->then( true )->else( false )->__toString(),
			'test'   => SelectionExpression::if( 'r._value > 10' )->then( 'yes' )->else( 'no' )->__toString()
		] )->__toString() );

		$query = '|> map(fn: (r) => ({ {time: r._time, source: r.tag, ' .
		         'alert: if r._value > 10 then true else false, ' .
		         'test: if r._value > 10 then "yes" else "no"} })) ';

		$this->assertEquals( $query, $expression->__toString() );
	}
}