<?php

namespace yiiunit\extensions\sphinx;

use yii\helpers\FileHelper;
use yii\sphinx\Connection;
use Yii;
use yiiunit\TestCase as TestCase;

/**
 * Base class for the Sphinx test cases.
 */
class SphinxTestCase extends TestCase
{
    /**
     * @var array Sphinx connection configuration.
     */
    protected $sphinxConfig = [
        'dsn' => 'mysql:host=127.0.0.1;port=9306;',
        'username' => '',
        'password' => '',
    ];
    /**
     * @var Connection Sphinx connection instance.
     */
    protected $sphinx;
    /**
     * @var array Database connection configuration.
     */
    protected $dbConfig = [
        'dsn' => 'mysql:host=127.0.0.1;',
        'username' => '',
        'password' => '',
    ];
    /**
     * @var \yii\db\Connection database connection instance.
     */
    protected $db;

    public static function setUpBeforeClass()
    {
        static::loadClassMap();
    }

    protected function setUp()
    {
        parent::setUp();
        if (!extension_loaded('pdo') || !extension_loaded('pdo_mysql')) {
            $this->markTestSkipped('pdo and pdo_mysql extension are required.');
        }
        $config = self::getParam('sphinx');
        if (!empty($config)) {
            $this->sphinxConfig = $config['sphinx'];
            $this->dbConfig = $config['db'];
        }
        $this->mockApplication();
        static::loadClassMap();
    }

    protected function tearDown()
    {
        if ($this->sphinx) {
            $this->sphinx->close();
        }
        $this->destroyApplication();
    }

    /**
     * Adds sphinx extension files to [[Yii::$classPath]],
     * avoiding the necessity of usage Composer autoloader.
     */
    protected static function loadClassMap()
    {
        $baseNameSpace = 'yii/sphinx';
        $basePath = realpath(__DIR__. '/../../../../extensions/sphinx');
        $files = FileHelper::findFiles($basePath);
        foreach ($files as $file) {
            $classRelativePath = str_replace($basePath, '', $file);
            $classFullName = str_replace(['/', '.php'], ['\\', ''], $baseNameSpace . $classRelativePath);
            Yii::$classMap[$classFullName] = $file;
        }
    }

    /**
     * @param  boolean                $reset whether to clean up the test database
     * @param  boolean                $open  whether to open test database
     * @return \yii\sphinx\Connection
     */
    public function getConnection($reset = false, $open = true)
    {
        if (!$reset && $this->sphinx) {
            return $this->sphinx;
        }
        $db = new Connection;
        $db->dsn = $this->sphinxConfig['dsn'];
        if (isset($this->sphinxConfig['username'])) {
            $db->username = $this->sphinxConfig['username'];
            $db->password = $this->sphinxConfig['password'];
        }
        if (isset($this->sphinxConfig['attributes'])) {
            $db->attributes = $this->sphinxConfig['attributes'];
        }
        if ($open) {
            $db->open();
        }
        $this->sphinx = $db;

        return $db;
    }

    /**
     * Truncates the runtime index.
     * @param string $indexName index name.
     */
    protected function truncateRuntimeIndex($indexName)
    {
        if ($this->sphinx) {
            $this->sphinx->createCommand('TRUNCATE RTINDEX ' . $indexName)->execute();
        }
    }

    /**
     * @param  boolean            $reset whether to clean up the test database
     * @param  boolean            $open  whether to open and populate test database
     * @return \yii\db\Connection
     */
    public function getDbConnection($reset = true, $open = true)
    {
        if (!$reset && $this->db) {
            return $this->db;
        }
        $db = new \yii\db\Connection;
        $db->dsn = $this->dbConfig['dsn'];
        if (isset($this->dbConfig['username'])) {
            $db->username = $this->dbConfig['username'];
            $db->password = $this->dbConfig['password'];
        }
        if (isset($this->dbConfig['attributes'])) {
            $db->attributes = $this->dbConfig['attributes'];
        }
        if ($open) {
            $db->open();
            if (!empty($this->dbConfig['fixture'])) {
                $lines = explode(';', file_get_contents($this->dbConfig['fixture']));
                foreach ($lines as $line) {
                    if (trim($line) !== '') {
                        $db->pdo->exec($line);
                    }
                }
            }
        }
        $this->db = $db;

        return $db;
    }
}
