<?php
/**
 * Phinx
 *
 * (The MIT license)
 * Copyright (c) 2015 Rob Morgan
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated * documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 *
 * @package    Phinx
 * @subpackage Phinx\Db\Adapter
 */
namespace Schema\Db\Adapter;

use Schema\Db\Table;
use Schema\Db\Table\Column;

/**
 * Phinx PDO Adapter.
 *
 * @author Rob Morgan <robbym@gmail.com>
 */
abstract class PdoAdapter implements AdapterInterface
{

    /**
     * @var \PDO
     */
    protected $connection;

    /**
     * @var float
     */
    protected $commandStartTime;

    /**
     * Class Constructor.
     *
     * @param array $options Options
     * @param InputInterface $input Input Interface
     * @param OutputInterface $output Output Interface
     */
    public function __construct()
    {

    }


    /**
     * Sets the database connection.
     *
     * @param \PDO $connection Connection
     * @return AdapterInterface
     */
    public function setConnection(\PDO $connection)
    {
        $this->connection = $connection;

        return $this;
    }

    /**
     * Gets the database connection
     *
     * @return \PDO
     */
    public function getConnection()
    {
        if (null === $this->connection) {
            $this->connect();
        }
        return $this->connection;
    }
  
    /**
     * Gets the table prefix
     *
     * @return \PDO
     */
    public function getTablePrefix()
    {
      	if(isset($this->connection->prefix)){
        	return $this->connection->prefix;
        }
        return '';
    }
  
  
    /**
     * Sets the command start time
     *
     * @param int $time
     * @return AdapterInterface
     */
    public function setCommandStartTime($time)
    {
        $this->commandStartTime = $time;
        return $this;
    }

    /**
     * Gets the command start time
     *
     * @return int
     */
    public function getCommandStartTime()
    {
        return $this->commandStartTime;
    }

    /**
     * Start timing a command.
     *
     * @return void
     */
    public function startCommandTimer()
    {
        $this->setCommandStartTime(microtime(true));
    }

    /**
     * Stop timing the current command and write the elapsed time to the
     * output.
     *
     * @return void
     */
    public function endCommandTimer()
    {
        return;
        $end = microtime(true);
        if (OutputInterface::VERBOSITY_VERBOSE <= $this->getOutput()->getVerbosity()) {
            $this->getOutput()->writeln('    -> ' . sprintf('%.4fs', $end - $this->getCommandStartTime()));
        }
    }

    /**
     * Write a Phinx command to the output.
     *
     * @param string $command Command Name
     * @param array  $args    Command Args
     * @return void
     */
    public function writeCommand($command, $args = array())
    {
        return '';
        if (OutputInterface::VERBOSITY_VERBOSE <= $this->getOutput()->getVerbosity()) {
            if (count($args)) {
                $outArr = array();
                foreach ($args as $arg) {
                    if (is_array($arg)) {
                        $arg = array_map(function ($value) {
                            return '\'' . $value . '\'';
                        }, $arg);
                        $outArr[] = '[' . implode(', ', $arg)  . ']';
                        continue;
                    }

                    $outArr[] = '\'' . $arg . '\'';
                }
                $this->getOutput()->writeln(' -- ' . $command . '(' . implode(', ', $outArr) . ')');
                return;
            }
            $this->getOutput()->writeln(' -- ' . $command);
        }
    }

    /**
     * {@inheritdoc}
     */
    public function connect()
    {
    }

    /**
     * {@inheritdoc}
     */
    public function disconnect()
    {
    }

    /**
     * {@inheritdoc}
     */
    public function execute($sql)
    {
        // $sql;
        return $this->getConnection()->exec($sql);
    }

    /**
     * {@inheritdoc}
     */
    public function query($sql)
    {
        return $this->getConnection()->query($sql);
    }

    /**
     * {@inheritdoc}
     */
    public function fetchRow($sql)
    {
        $result = $this->query($sql);
        return $result->fetch();
    }

    /**
     * {@inheritdoc}
     */
    public function fetchAll($sql)
    {
        $rows = array();
        $result = $this->query($sql);
        while ($row = $result->fetch()) {
            $rows[] = $row;
        }
        return $rows;
    }

    /**
     * {@inheritdoc}
     */
    public function insert(Table $table, $row)
    {
        $this->startCommandTimer();
        //$this->writeCommand('insert', array($table->getName()));

        $sql = sprintf(
            "INSERT INTO %s ",
            $this->quoteTableName($table->getName())
        );

        $columns = array_keys($row);
        $sql .= "(". implode(', ', array_map(array($this, 'quoteColumnName'), $columns)) . ")";
        $sql .= " VALUES (" . implode(', ', array_fill(0, count($columns), '?')) . ")";

        $stmt = $this->getConnection()->prepare($sql);
        $stmt->execute(array_values($row));
        $this->endCommandTimer();
    }


    /**
     * {@inheritdoc}
     */
    public function getAdapterType()
    {
        return $this->getOption('adapter');
    }

    /**
     * {@inheritdoc}
     */
    public function getColumnTypes()
    {
        return array(
            'string',
            'char',
            'text',
            'integer',
            'biginteger',
            'float',
            'decimal',
            'datetime',
            'timestamp',
            'time',
            'date',
            'blob',
            'binary',
            'varbinary',
            'boolean',
            'uuid',
            // Geospatial data types
            'geometry',
            'point',
            'linestring',
            'polygon',
        );
    }

    /**
     * {@inheritdoc}
     */
    public function isValidColumnType(Column $column) {
        return in_array($column->getType(), $this->getColumnTypes());
    }

    /**
     * Cast a value to a boolean appropriate for the adapter.
     *
     * @param mixed $value The value to be cast
     *
     * @return mixed
     */
    public function castToBool($value)
    {
        return (bool) $value ? 1 : 0;
    }
}