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1<?php
2
3declare(strict_types=1);
4
5namespace Projom\Storage\Engine\Driver\Connection;
6
7use PDO;
8
9use Projom\Storage\Engine\Driver\Connection\ConnectionInterface;
10
11class PDOConnection extends PDO implements ConnectionInterface
12{
13    const DEFAULT_ATTRIBUTES = [
14        PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
15        PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
16    ];
17
18    private int|string $name;
19
20    public function __construct(
21        int|string $name,
22        string $dsn,
23        null|string $username = null,
24        null|string $password = null,
25        null|array $options = null
26    ) {
27
28        $this->name = $name;
29
30        $options = $this->parseAttributes($options);
31        $options = $options + self::DEFAULT_ATTRIBUTES;
32        parent::__construct($dsn, $username, $password, $options);
33    }
34
35    public static function create(
36        int|string $name,
37        string $dsn,
38        null|string $username = null,
39        null|string $password = null,
40        null|array $options = null
41    ): PDOConnection {
42        return new PDOConnection($name, $dsn, $username, $password, $options);
43    }
44
45    private function parseAttributes(array $attributes): array
46    {
47        $parsedAttributes = [];
48        foreach ($attributes as $key => $value) {
49
50            // An effort to make constant detection less error-prone.
51            $key = strtoupper(trim($key));
52            $value = strtoupper(trim($value));
53
54            if (!defined($key) || !defined($value))
55                throw new \Exception("The attribute $key or value $value is not a defined constant.", 400);
56
57            $parsedAttributes[constant($key)] = constant($value);
58        }
59
60        return $parsedAttributes;
61    }
62
63    public function name(): int|string
64    {
65        return $this->name;
66    }
67}