<?php
/**
 * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
 * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 *
 * Licensed under The MIT License
 * For full copyright and license information, please see the LICENSE.txt
 * Redistributions of files must retain the above copyright notice.
 *
 * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 * @link          http://cakephp.org CakePHP(tm) Project
 * @since         3.0.0
 * @license       http://www.opensource.org/licenses/mit-license.php MIT License
 */
namespace Cake\Test\TestCase\Database\Schema;

use Cake\Database\Schema\Table;
use Cake\Database\Type;
use Cake\Datasource\ConnectionManager;
use Cake\ORM\TableRegistry;
use Cake\TestSuite\TestCase;

/**
 * Mock class for testing baseType inheritance
 *
 */
class FooType extends Type
{

    public function getBaseType()
    {
        return 'integer';
    }
}

/**
 * Test case for Table
 */
class TableTest extends TestCase
{

    public $fixtures = [
        'core.articles',
        'core.tags',
        'core.articles_tags',
        'core.orders',
        'core.products'
    ];

    protected $_map;

    public function setUp()
    {
        $this->_map = Type::map();
        parent::setUp();
    }

    public function tearDown()
    {
        TableRegistry::clear();
        Type::clear();
        Type::map($this->_map);
        parent::tearDown();
    }

    /**
     * Test construction with columns
     *
     * @return void
     */
    public function testConstructWithColumns()
    {
        $columns = [
            'id' => [
                'type' => 'integer',
                'length' => 11,
            ],
            'title' => [
                'type' => 'string',
                'length' => 255
            ]
        ];
        $table = new Table('articles', $columns);
        $this->assertEquals(['id', 'title'], $table->columns());
    }

    /**
     * Test adding columns.
     *
     * @return void
     */
    public function testAddColumn()
    {
        $table = new Table('articles');
        $result = $table->addColumn('title', [
            'type' => 'string',
            'length' => 25,
            'null' => false
        ]);
        $this->assertSame($table, $result);
        $this->assertEquals(['title'], $table->columns());

        $result = $table->addColumn('body', 'text');
        $this->assertSame($table, $result);
        $this->assertEquals(['title', 'body'], $table->columns());
    }

    /**
     * Test isNullable method
     *
     * @return void
     */
    public function testIsNullable()
    {
        $table = new Table('articles');
        $table->addColumn('title', [
            'type' => 'string',
            'length' => 25,
            'null' => false
        ])->addColumn('tagline', [
            'type' => 'string',
            'length' => 25,
            'null' => true
        ]);
        $this->assertFalse($table->isNullable('title'));
        $this->assertTrue($table->isNullable('tagline'));
        $this->assertTrue($table->isNullable('missing'));
    }

    /**
     * Test columnType method
     *
     * @return void
     */
    public function testColumnType()
    {
        $table = new Table('articles');
        $table->addColumn('title', [
            'type' => 'string',
            'length' => 25,
            'null' => false
        ]);
        $this->assertEquals('string', $table->columnType('title'));
        $this->assertNull($table->columnType('not there'));
    }

    /**
     * Test columnType setter method
     *
     * @return void
     */
    public function testColumnTypeSet()
    {
        $table = new Table('articles');
        $table->addColumn('title', [
            'type' => 'string',
            'length' => 25,
            'null' => false
        ]);
        $this->assertEquals('string', $table->columnType('title'));
        $table->columnType('title', 'json');
        $this->assertEquals('json', $table->columnType('title'));
    }

    /**
     * Tests getting the baseType as configured when creating the column
     *
     * @return void
     */
    public function testBaseColumnType()
    {
        $table = new Table('articles');
        $table->addColumn('title', [
            'type' => 'json',
            'baseType' => 'text',
            'length' => 25,
            'null' => false
        ]);
        $this->assertEquals('json', $table->columnType('title'));
        $this->assertEquals('text', $table->baseColumnType('title'));
    }

    /**
     * Tests getting the base type as it is retuned by the Type class
     *
     * @return void
     */
    public function testBaseColumnTypeInherited()
    {
        Type::map('foo', __NAMESPACE__ . '\FooType');
        $table = new Table('articles');
        $table->addColumn('thing', [
            'type' => 'foo',
            'null' => false
        ]);
        $this->assertEquals('foo', $table->columnType('thing'));
        $this->assertEquals('integer', $table->baseColumnType('thing'));
    }

    /**
     * Attribute keys should be filtered and have defaults set.
     *
     * @return void
     */
    public function testAddColumnFiltersAttributes()
    {
        $table = new Table('articles');
        $table->addColumn('title', [
            'type' => 'string'
        ]);
        $result = $table->column('title');
        $expected = [
            'type' => 'string',
            'length' => null,
            'precision' => null,
            'default' => null,
            'null' => null,
            'fixed' => null,
            'comment' => null,
        ];
        $this->assertEquals($expected, $result);

        $table->addColumn('author_id', [
            'type' => 'integer'
        ]);
        $result = $table->column('author_id');
        $expected = [
            'type' => 'integer',
            'length' => null,
            'precision' => null,
            'default' => null,
            'null' => null,
            'unsigned' => null,
            'comment' => null,
            'autoIncrement' => null,
        ];
        $this->assertEquals($expected, $result);

        $table->addColumn('amount', [
            'type' => 'decimal'
        ]);
        $result = $table->column('amount');
        $expected = [
            'type' => 'decimal',
            'length' => null,
            'precision' => null,
            'default' => null,
            'null' => null,
            'unsigned' => null,
            'comment' => null,
        ];
        $this->assertEquals($expected, $result);
    }

    /**
     * Test reading default values.
     *
     * @return void
     */
    public function testDefaultValues()
    {
        $table = new Table('articles');
        $table->addColumn('id', [
            'type' => 'integer',
            'default' => 0
        ])->addColumn('title', [
            'type' => 'string',
            'default' => 'A title'
        ])->addColumn('name', [
            'type' => 'string',
            'null' => false,
            'default' => null,
        ])->addColumn('body', [
            'type' => 'text',
            'null' => true,
            'default' => null,
        ]);
        $result = $table->defaultValues();
        $expected = [
            'id' => 0,
            'title' => 'A title',
            'body' => null
        ];
        $this->assertEquals($expected, $result);
    }

    /**
     * Test adding an constraint.
     * >
     * @return void
     */
    public function testAddConstraint()
    {
        $table = new Table('articles');
        $table->addColumn('id', [
            'type' => 'integer'
        ]);
        $result = $table->addConstraint('primary', [
            'type' => 'primary',
            'columns' => ['id']
        ]);
        $this->assertSame($result, $table);
        $this->assertEquals(['primary'], $table->constraints());
    }

    /**
     * Dataprovider for invalid addConstraint calls.
     *
     * @return array
     */
    public static function addConstaintErrorProvider()
    {
        return [
            // No properties
            [[]],
            // Empty columns
            [['columns' => '', 'type' => Table::CONSTRAINT_UNIQUE]],
            [['columns' => [], 'type' => Table::CONSTRAINT_UNIQUE]],
            // Missing column
            [['columns' => ['derp'], 'type' => Table::CONSTRAINT_UNIQUE]],
            // Invalid type
            [['columns' => 'author_id', 'type' => 'derp']],
        ];
    }

    /**
     * Test that an exception is raised when constraints
     * are added for fields that do not exist.
     *
     * @dataProvider addConstaintErrorProvider
     * @expectedException \Cake\Database\Exception
     * @return void
     */
    public function testAddConstraintError($props)
    {
        $table = new Table('articles');
        $table->addColumn('author_id', 'integer');
        $table->addConstraint('author_idx', $props);
    }

    /**
     * Test adding an index.
     *
     * @return void
     */
    public function testAddIndex()
    {
        $table = new Table('articles');
        $table->addColumn('title', [
            'type' => 'string'
        ]);
        $result = $table->addIndex('faster', [
            'type' => 'index',
            'columns' => ['title']
        ]);
        $this->assertSame($result, $table);
        $this->assertEquals(['faster'], $table->indexes());
    }

    /**
     * Dataprovider for invalid addIndex calls
     *
     * @return array
     */
    public static function addIndexErrorProvider()
    {
        return [
            // Empty
            [[]],
            // Invalid type
            [['columns' => 'author_id', 'type' => 'derp']],
            // No columns
            [['columns' => ''], 'type' => Table::INDEX_INDEX],
            [['columns' => [], 'type' => Table::INDEX_INDEX]],
            // Missing column
            [['columns' => ['not_there'], 'type' => Table::INDEX_INDEX]],
        ];
    }

    /**
     * Test that an exception is raised when indexes
     * are added for fields that do not exist.
     *
     * @dataProvider addIndexErrorProvider
     * @expectedException \Cake\Database\Exception
     * @return void
     */
    public function testAddIndexError($props)
    {
        $table = new Table('articles');
        $table->addColumn('author_id', 'integer');
        $table->addIndex('author_idx', $props);
    }

    /**
     * Test adding different kinds of indexes.
     *
     * @return void
     */
    public function testAddIndexTypes()
    {
        $table = new Table('articles');
        $table->addColumn('id', 'integer')
            ->addColumn('title', 'string')
            ->addColumn('author_id', 'integer');

        $table->addIndex('author_idx', [
                'columns' => ['author_id'],
                'type' => 'index'
            ])->addIndex('texty', [
                'type' => 'fulltext',
                'columns' => ['title']
            ]);

        $this->assertEquals(
            ['author_idx', 'texty'],
            $table->indexes()
        );
    }

    /**
     * Test getting the primary key.
     *
     * @return void
     */
    public function testPrimaryKey()
    {
        $table = new Table('articles');
        $table->addColumn('id', 'integer')
            ->addColumn('title', 'string')
            ->addColumn('author_id', 'integer')
            ->addConstraint('author_idx', [
                'columns' => ['author_id'],
                'type' => 'unique'
            ])->addConstraint('primary', [
                'type' => 'primary',
                'columns' => ['id']
            ]);
        $this->assertEquals(['id'], $table->primaryKey());

        $table = new Table('articles');
        $table->addColumn('id', 'integer')
            ->addColumn('title', 'string')
            ->addColumn('author_id', 'integer');
        $this->assertEquals([], $table->primaryKey());
    }

    /**
     * Test the options method.
     *
     * @return void
     */
    public function testOptions()
    {
        $table = new Table('articles');
        $options = [
            'engine' => 'InnoDB'
        ];
        $return = $table->options($options);
        $this->assertInstanceOf('Cake\Database\Schema\Table', $return);
        $this->assertEquals($options, $table->options());
    }

    /**
     * Add a basic foreign key constraint.
     *
     * @return void
     */
    public function testAddConstraintForeignKey()
    {
        $table = new Table('articles');
        $table->addColumn('author_id', 'integer')
            ->addConstraint('author_id_idx', [
                'type' => Table::CONSTRAINT_FOREIGN,
                'columns' => ['author_id'],
                'references' => ['authors', 'id'],
                'update' => 'cascade',
                'delete' => 'cascade',
            ]);
        $this->assertEquals(['author_id_idx'], $table->constraints());
    }

    /**
     * Test single column foreign keys constraint support
     *
     * @return void
     */
    public function testConstraintForeignKey()
    {
        $table = TableRegistry::get('ArticlesTags');
        $compositeConstraint = $table->schema()->constraint('tag_id_fk');
        $expected = [
            'type' => 'foreign',
            'columns' => ['tag_id'],
            'references' => ['tags', 'id'],
            'update' => 'cascade',
            'delete' => 'cascade',
            'length' => []
        ];

        $this->assertEquals($expected, $compositeConstraint);

        $expectedSubstring = 'CONSTRAINT <tag_id_fk> FOREIGN KEY \(<tag_id>\) REFERENCES <tags> \(<id>\)';
        $this->assertQuotedQuery($expectedSubstring, $table->schema()->createSql(ConnectionManager::get('test'))[0]);
    }

    /**
     * Test composite foreign keys support
     *
     * @return void
     */
    public function testConstraintForeignKeyTwoColumns()
    {
        $table = TableRegistry::get('Orders');
        $compositeConstraint = $table->schema()->constraint('product_category_fk');
        $expected = [
            'type' => 'foreign',
            'columns' => [
                'product_category',
                'product_id'
            ],
            'references' => [
                'products',
                ['category', 'id']
            ],
            'update' => 'cascade',
            'delete' => 'cascade',
            'length' => []
        ];
        $this->assertEquals($expected, $compositeConstraint);

        $expectedSubstring = 'CONSTRAINT <product_category_fk> FOREIGN KEY \(<product_category>, <product_id>\)' .
            ' REFERENCES <products> \(<category>, <id>\)';

        $this->assertQuotedQuery($expectedSubstring, $table->schema()->createSql(ConnectionManager::get('test'))[0]);
    }

    /**
     * Provider for exceptionally bad foreign key data.
     *
     * @return array
     */
    public static function badForeignKeyProvider()
    {
        return [
            'references is bad' => [[
                'type' => Table::CONSTRAINT_FOREIGN,
                'columns' => ['author_id'],
                'references' => ['authors'],
                'delete' => 'derp',
            ]],
            'bad update value' => [[
                'type' => Table::CONSTRAINT_FOREIGN,
                'columns' => ['author_id'],
                'references' => ['authors', 'id'],
                'update' => 'derp',
            ]],
            'bad delete value' => [[
                'type' => Table::CONSTRAINT_FOREIGN,
                'columns' => ['author_id'],
                'references' => ['authors', 'id'],
                'delete' => 'derp',
            ]],
        ];
    }

    /**
     * Add a foreign key constraint with bad data
     *
     * @dataProvider badForeignKeyProvider
     * @expectedException \Cake\Database\Exception
     * @return void
     */
    public function testAddConstraintForeignKeyBadData($data)
    {
        $table = new Table('articles');
        $table->addColumn('author_id', 'integer')
            ->addConstraint('author_id_idx', $data);
    }

    /**
     * Tests the temporary() method
     *
     * @return void
     */
    public function testTemporary()
    {
        $table = new Table('articles');
        $this->assertFalse($table->temporary());
        $this->assertSame($table, $table->temporary(true));
        $this->assertTrue($table->temporary());
        $table->temporary(false);
        $this->assertFalse($table->temporary());
    }

    /**
     * Assertion for comparing a regex pattern against a query having its identifiers
     * quoted. It accepts queries quoted with the characters `<` and `>`. If the third
     * parameter is set to true, it will alter the pattern to both accept quoted and
     * unquoted queries
     *
     * @param string $pattern
     * @param string $query the result to compare against
     * @param bool $optional
     * @return void
     */
    public function assertQuotedQuery($pattern, $query, $optional = false)
    {
        if ($optional) {
            $optional = '?';
        }
        $pattern = str_replace('<', '[`"\[]' . $optional, $pattern);
        $pattern = str_replace('>', '[`"\]]' . $optional, $pattern);
        $this->assertRegExp('#' . $pattern . '#', $query);
    }
}