<?php

namespace Give\Framework\Exceptions;

use Error;
use Exception;
use Give\Framework\Exceptions\Contracts\LoggableException;
use Give\Framework\Exceptions\Traits\Loggable;
use Give\Log\Log;

class UncaughtExceptionLogger
{
    /**
     * @var callable|null
     */
    private $previousHandler;

    /**
     * Registers the class with the set_exception_handler to receive uncaught exceptions
     *
     * @since 2.11.1
     */
    public function setupExceptionHandler()
    {
        if ($this->previousHandler !== null) {
            return;
        }

        $this->previousHandler = @set_exception_handler([$this, 'handleException']);
    }

    /**
     * Handles an uncaught exception by checking if the Exception is native to GiveWP and then logging it if it is
     *
     * @since 2.12.0 re-throw the exception so it displays
     * @since 2.11.2 remove parameter typing as it may be an Error
     * @since 2.11.1
     *
     * @param Exception|Error $exception
     *
     * @throws LoggableException
     */
    public function handleException($exception)
    {
        if ($exception instanceof LoggableException) {
            /** @var LoggableException|Loggable $exception */
            Log::error($exception->getLogMessage(), $exception->getLogContext());
        }

        if ($this->previousHandler !== null) {
            $previousHandler = $this->previousHandler;
            $previousHandler($exception);
        } else {
            throw $exception;
        }
    }
}