<?php

namespace App\Providers;

use App\Database\MySqlConnection;
use Illuminate\Database\Connection;
use Illuminate\Support\ServiceProvider;

class AppServiceProvider extends ServiceProvider
{
    /**
     * Register any application services.
     *
     * @return void
     */
    public function register()
    {
        Connection::resolverFor('mysql', function ($connection, $database, $prefix, $config) {
            return new MySqlConnection($connection, $database, $prefix, $config);
        });
    }

    /**
     * Bootstrap any application services.
     *
     * @return void
     */
    public function boot()
    {
        $this->loadMigrations();
    }

    private function loadMigrations()
    {
        $invalidContents = ['.', '..', '.gitkeep'];
        $migrationsDir = database_path() . '/migrations/';

        $migrationFilesPaths = $this->getMigrationFilesPaths(
            $invalidContents,
            $migrationsDir
        );

        $this->loadMigrationsFrom($migrationFilesPaths);
    }

    private function getMigrationFilesPaths($invalidContents, $currentDirectory, $paths = [])
    {
        $contents = opendir($currentDirectory);

        while ($content = readdir($contents)) {

            if (!in_array($content, $invalidContents)) {

                $fullPath = $currentDirectory . $content;

                if (is_dir($fullPath)) {

                    $paths = $this->getMigrationFilesPaths(
                        $invalidContents,
                        $fullPath . '/',
                        $paths
                    );

                    continue;
                }

                $paths[] = $fullPath;
            }
        }

        return $paths;
    }
}