<?php namespace DBDiff\DB;

use DBDiff\DB\Schema\DBSchema;

use DBDiff\DB\Schema\TableSchema;

use DBDiff\DB\Data\DBData;

use DBDiff\DB\Data\TableData;

use DBDiff\SQLGen\Dialect\DialectRegistry;

class DiffCalculator {

protected $manager;

function __construct() {

$this->manager = new DBManager;

}

public function getDiff($params) {

// Connect and test accessibility

$this->manager->connect($params);

$this->manager->testResources($params);

// Initialise the SQL dialect for this run so all DiffToSQL classes

// generate correctly-quoted SQL for the target driver.

DialectRegistry::setForDriver($this->manager->getDriver());

// Schema diff

$schemaDiff = [];

if ($params->type !== 'data') {

if ($params->input['kind'] === 'db') {

$dbSchema = new DBSchema($this->manager);

$schemaDiff = $dbSchema->getDiff();

} else {

$tableSchema = new TableSchema($this->manager);

$schemaDiff = $tableSchema->getDiff($params->input['source']['table']);

}

}

// Data diff

$dataDiff = [];

if ($params->type !== 'schema') {

if ($params->input['kind'] === 'db') {

$dbData = new DBData($this->manager);

$dataDiff = $dbData->getDiff();

} else {

$tableData = new TableData($this->manager);

$dataDiff = $tableData->getDiff($params->input['source']['table']);

}

}

return [

'schema' => $schemaDiff,

'data' => $dataDiff,

];

}

}