<?php

namespace SilverStripe\ORM\Tests;

use SilverStripe\ORM\Connect\DBQueryBuilder;
use SilverStripe\ORM\Queries\SQLInsert;
use SilverStripe\ORM\DB;
use SilverStripe\ORM\DataObject;
use SilverStripe\Dev\SapphireTest;
use SilverStripe\ORM\Tests\SQLInsertTest\SQLInsertTestBase;

/**
 * Tests for {@see SQLInsert}
 */
class SQLInsertTest extends SapphireTest
{

    protected static $extra_dataobjects = [
        SQLInsertTestBase::class
    ];

    public function testEmptyQueryReturnsNothing()
    {
        $query = new SQLInsert();
        $this->assertSQLEquals('', $query->sql($parameters));
    }

    public function testBasicInsert()
    {
        $query = SQLInsert::create()
                ->setInto('"SQLInsertTestBase"')
                ->assign('"Title"', 'My Object')
                ->assign('"HasFun"', 1)
                ->assign('"Age"', 10)
                ->assign('"Description"', 'No description');
        $sql = $query->sql($parameters);
        // Only test this case if using the default query builder
        if (get_class(DB::get_conn()->getQueryBuilder()) === DBQueryBuilder::class) {
            $this->assertSQLEquals(
                'INSERT INTO "SQLInsertTestBase" ("Title", "HasFun", "Age", "Description") VALUES (?, ?, ?, ?)',
                $sql
            );
        }
        $this->assertEquals(['My Object', 1, 10, 'No description'], $parameters);
        $query->execute();
        $this->assertEquals(1, DB::affected_rows());

        // Check inserted object is correct
        $firstObject = DataObject::get_one(SQLInsertTestBase::class, ['"Title"' => 'My Object'], false);
        $this->assertNotEmpty($firstObject);
        $this->assertEquals($firstObject->Title, 'My Object');
        $this->assertNotEmpty($firstObject->HasFun);
        $this->assertEquals($firstObject->Age, 10);
        $this->assertEquals($firstObject->Description, 'No description');
    }

    public function testMultipleRowInsert()
    {
        $query = SQLInsert::create('"SQLInsertTestBase"');
        $query->addRow(
            [
            '"Title"' => 'First Object',
            '"Age"' => 10, // Can't insert non-null values into only one row in a multi-row insert
            '"Description"' => 'First the worst' // Nullable field, can be present in some rows
            ]
        );
        $query->addRow(
            [
            '"Title"' => 'Second object',
            '"Age"' => 12
            ]
        );
        $sql = $query->sql($parameters);
        // Only test this case if using the default query builder
        if (get_class(DB::get_conn()->getQueryBuilder()) === DBQueryBuilder::class) {
            $this->assertSQLEquals(
                'INSERT INTO "SQLInsertTestBase" ("Title", "Age", "Description") VALUES (?, ?, ?), (?, ?, ?)',
                $sql
            );
        }
        $this->assertEquals(['First Object', 10, 'First the worst', 'Second object', 12, null], $parameters);
        $query->execute();
        $this->assertEquals(2, DB::affected_rows());

        // Check inserted objects are correct
        $firstObject = DataObject::get_one(SQLInsertTestBase::class, ['"Title"' => 'First Object'], false);
        $this->assertNotEmpty($firstObject);
        $this->assertEquals($firstObject->Title, 'First Object');
        $this->assertEquals($firstObject->Age, 10);
        $this->assertEquals($firstObject->Description, 'First the worst');

        $secondObject = DataObject::get_one(SQLInsertTestBase::class, ['"Title"' => 'Second object'], false);
        $this->assertNotEmpty($secondObject);
        $this->assertEquals($secondObject->Title, 'Second object');
        $this->assertEquals($secondObject->Age, 12);
        $this->assertEmpty($secondObject->Description);
    }
}