<?php

namespace App\Utilities\Logger;

use DateTimeZone;
use InvalidArgumentException;
use Monolog\Logger as Monolog;
use Monolog\Handler\HandlerInterface;
use App\HiLib\Logger\LogServiceRecordProcessor;

class CreateCustomLogger
{
    protected $levels = [
        'debug' => Monolog::DEBUG,
        'info' => Monolog::INFO,
        'notice' => Monolog::NOTICE,
        'warning' => Monolog::WARNING,
        'error' => Monolog::ERROR,
        'critical' => Monolog::CRITICAL,
        'alert' => Monolog::ALERT,
        'emergency' => Monolog::EMERGENCY,
    ];

    public function __invoke(array $config)
    {
        if (!is_a($config['handler'], HandlerInterface::class, true)) {
            throw new InvalidArgumentException(
                $config['handler'] . ' must be an instance of ' . HandlerInterface::class
            );
        }

        $with = array_merge(
            ['level' => $this->level($config)],
            $config['with'] ?? [],
            $config['handler_with'] ?? []
        );

        $handlers = [
            $this->prepareHandler(app()->make($config['handler'], $with), $config)
        ];

        $processors = [
            new LogServiceRecordProcessor,
        ];

        return new Monolog('custom', $handlers, $processors, new DateTimeZone('Asia/Tehran'));
    }

    protected function getFallbackChannelName()
    {
        return app()->bound('env') ? app()->environment() : 'production';
    }

    protected function prepareHandler(HandlerInterface $handler, array $config = [])
    {
        $isHandlerFormattable = false;

        if (Monolog::API === 1) {
            $isHandlerFormattable = true;
        } elseif (Monolog::API === 2 && $handler instanceof FormattableHandlerInterface) {
            $isHandlerFormattable = true;
        }

        if ($isHandlerFormattable && !isset($config['formatter'])) {
            $handler->setFormatter($this->formatter());
        } elseif ($isHandlerFormattable && $config['formatter'] !== 'default') {
            $handler->setFormatter(app()->make($config['formatter'], $config['formatter_with'] ?? []));
        }

        return $handler;
    }

    protected function level(array $config)
    {
        $level = $config['level'] ?? 'debug';

        if (isset($this->levels[$level])) {
            return $this->levels[$level];
        }

        throw new InvalidArgumentException('Invalid log level.');
    }
}