<?php

namespace Doctrine\Tests\ORM\Tools\Pagination;

use Doctrine\ORM\Query;
use Doctrine\ORM\Tools\Pagination\LimitSubqueryWalker;

/**
 * @group DDC-1613
 */
class LimitSubqueryWalkerTest extends PaginationTestCase
{
    public function testLimitSubquery()
    {
        $dql        = 'SELECT p, c, a FROM Doctrine\Tests\ORM\Tools\Pagination\MyBlogPost p JOIN p.category c JOIN p.author a';
        $query      = $this->entityManager->createQuery($dql);
        $limitQuery = clone $query;

        $limitQuery->setHint(Query::HINT_CUSTOM_TREE_WALKERS, [LimitSubqueryWalker::class]);

        $this->assertEquals(
            "SELECT DISTINCT m0_.id AS id_0 FROM MyBlogPost m0_ INNER JOIN Category c1_ ON m0_.category_id = c1_.id INNER JOIN Author a2_ ON m0_.author_id = a2_.id",
            $limitQuery->getSQL()
        );
    }

    public function testLimitSubqueryWithSort()
    {
        $dql        = 'SELECT p, c, a FROM Doctrine\Tests\ORM\Tools\Pagination\MyBlogPost p JOIN p.category c JOIN p.author a ORDER BY p.title';
        $query      = $this->entityManager->createQuery($dql);
        $limitQuery = clone $query;

        $limitQuery->setHint(Query::HINT_CUSTOM_TREE_WALKERS, [LimitSubqueryWalker::class]);

        $this->assertEquals(
            "SELECT DISTINCT m0_.id AS id_0, m0_.title AS title_1 FROM MyBlogPost m0_ INNER JOIN Category c1_ ON m0_.category_id = c1_.id INNER JOIN Author a2_ ON m0_.author_id = a2_.id ORDER BY m0_.title ASC",
            $limitQuery->getSQL()
        );
    }

    public function testLimitSubqueryWithSortFunction()
    {
        $dql        = 'SELECT p FROM Doctrine\Tests\ORM\Tools\Pagination\MyBlogPost p JOIN p.category c GROUP BY p.id ORDER BY COUNT(c.id)';
        $query      = $this->entityManager->createQuery($dql);
        $limitQuery = clone $query;

        $limitQuery->setHint(Query::HINT_CUSTOM_TREE_WALKERS, [LimitSubqueryWalker::class]);

        $this->assertEquals(
            "SELECT DISTINCT m0_.id AS id_0 FROM MyBlogPost m0_ INNER JOIN Category c1_ ON m0_.category_id = c1_.id GROUP BY m0_.id ORDER BY COUNT(c1_.id) ASC",
            $limitQuery->getSQL()
        );
    }


    public function testCountQuery_MixedResultsWithName()
    {
        $dql        = 'SELECT a, sum(a.name) as foo FROM Doctrine\Tests\ORM\Tools\Pagination\Author a';
        $query      = $this->entityManager->createQuery($dql);
        $limitQuery = clone $query;

        $limitQuery->setHint(Query::HINT_CUSTOM_TREE_WALKERS, [LimitSubqueryWalker::class]);

        $this->assertEquals(
            "SELECT DISTINCT a0_.id AS id_0 FROM Author a0_",
            $limitQuery->getSQL()
        );
    }

    public function testAggQuery_MixedResultsWithNameAndSort()
    {
        $dql        = 'SELECT a, sum(a.name) as foo FROM Doctrine\Tests\ORM\Tools\Pagination\Author a ORDER BY foo DESC';
        $query      = $this->entityManager->createQuery($dql);
        $limitQuery = clone $query;

        $limitQuery->setHint(Query::HINT_CUSTOM_TREE_WALKERS, [LimitSubqueryWalker::class]);

        $this->assertEquals(
            "SELECT DISTINCT a0_.id AS id_0, sum(a0_.name) AS sclr_1 FROM Author a0_ ORDER BY sclr_1 DESC",
            $limitQuery->getSQL()
        );
    }

    public function testAggQuery_MultipleMixedResultsWithSort()
    {
        $dql        = 'SELECT a, sum(a.name) as foo, (SELECT count(subA.id) FROM Doctrine\Tests\ORM\Tools\Pagination\Author subA WHERE subA.id = a.id ) as bar FROM Doctrine\Tests\ORM\Tools\Pagination\Author a ORDER BY foo DESC, bar ASC';
        $query      = $this->entityManager->createQuery($dql);
        $limitQuery = clone $query;

        $limitQuery->setHint(Query::HINT_CUSTOM_TREE_WALKERS, [LimitSubqueryWalker::class]);

        $this->assertEquals(
            "SELECT DISTINCT a0_.id AS id_0, sum(a0_.name) AS sclr_1, (SELECT count(a1_.id) AS sclr_3 FROM Author a1_ WHERE a1_.id = a0_.id) AS sclr_2 FROM Author a0_ ORDER BY sclr_1 DESC, sclr_2 ASC",
            $limitQuery->getSQL()
        );
    }

    /**
     * @group DDC-2890
     */
    public function testLimitSubqueryWithSortOnAssociation()
    {
        $dql        = 'SELECT p FROM Doctrine\Tests\ORM\Tools\Pagination\MyBlogPost p ORDER BY p.author';
        $query      = $this->entityManager->createQuery($dql);
        $limitQuery = clone $query;

        $limitQuery->setHint(Query::HINT_CUSTOM_TREE_WALKERS, [LimitSubqueryWalker::class]);

        $this->assertEquals(
            "SELECT DISTINCT m0_.id AS id_0, m0_.author_id AS sclr_1 FROM MyBlogPost m0_ ORDER BY m0_.author_id ASC",
            $limitQuery->getSQL()
        );
    }

    /**
     * Arbitrary Join
     */
     public function testLimitSubqueryWithArbitraryJoin()
    {
        $dql        = 'SELECT p, c FROM Doctrine\Tests\ORM\Tools\Pagination\MyBlogPost p JOIN Doctrine\Tests\ORM\Tools\Pagination\Category c WITH p.category = c';
        $query      = $this->entityManager->createQuery($dql);
        $limitQuery = clone $query;

        $limitQuery->setHint(Query::HINT_CUSTOM_TREE_WALKERS, [LimitSubqueryWalker::class]);

        $this->assertEquals(
            "SELECT DISTINCT m0_.id AS id_0 FROM MyBlogPost m0_ INNER JOIN Category c1_ ON (m0_.category_id = c1_.id)",
            $limitQuery->getSQL()
        );
    }

    public function testLimitSubqueryWithSortWithArbitraryJoin()
    {
        $dql        = 'SELECT p, c FROM Doctrine\Tests\ORM\Tools\Pagination\MyBlogPost p JOIN Doctrine\Tests\ORM\Tools\Pagination\Category c WITH p.category = c ORDER BY p.title';
        $query      = $this->entityManager->createQuery($dql);
        $limitQuery = clone $query;

        $limitQuery->setHint(Query::HINT_CUSTOM_TREE_WALKERS, [LimitSubqueryWalker::class]);

        $this->assertEquals(
            "SELECT DISTINCT m0_.id AS id_0, m0_.title AS title_1 FROM MyBlogPost m0_ INNER JOIN Category c1_ ON (m0_.category_id = c1_.id) ORDER BY m0_.title ASC",
            $limitQuery->getSQL()
        );
    }
}