<?php

declare(strict_types=1);
/**
 * This file is part of Hyperf.
 *
 * @link     https://www.hyperf.io
 * @document https://hyperf.wiki
 * @contact  group@hyperf.io
 * @license  https://github.com/hyperf/hyperf/blob/master/LICENSE
 */

namespace Hyperf\Database;

class ConnectionResolver implements ConnectionResolverInterface
{
    /**
     * All the registered connections.
     */
    protected array $connections = [];

    /**
     * The default connection name.
     */
    protected string $default = 'default';

    /**
     * Create a new connection resolver instance.
     */
    public function __construct(array $connections = [])
    {
        foreach ($connections as $name => $connection) {
            $this->addConnection($name, $connection);
        }
    }

    /**
     * Get a database connection instance.
     */
    public function connection(?string $name = null): ConnectionInterface
    {
        if (is_null($name)) {
            $name = $this->getDefaultConnection();
        }

        return $this->connections[$name];
    }

    /**
     * Add a connection to the resolver.
     *
     * @param string $name
     */
    public function addConnection($name, ConnectionInterface $connection)
    {
        $this->connections[$name] = $connection;
    }

    /**
     * Check if a connection has been registered.
     *
     * @param string $name
     */
    public function hasConnection($name): bool
    {
        return isset($this->connections[$name]);
    }

    /**
     * Get the default connection name.
     */
    public function getDefaultConnection(): string
    {
        return $this->default;
    }

    /**
     * Set the default connection name.
     */
    public function setDefaultConnection(string $name): void
    {
        $this->default = $name;
    }
}