<?php

declare(strict_types=1);

namespace KTXC\Application\Execution;

use KTXC\KernelInterface;

final readonly class ExecutionRunner implements ExecutionRunnerInterface
{
    public function __construct(
        private KernelInterface $kernel,
    ) {
    }

    public function execute(
        ExecutionDescriptor $descriptor,
        callable $execution,
        ?callable $failure = null,
    ): mixed {
        $scope = $this->kernel->beginExecution($descriptor);
        $outcome = ExecutionOutcome::incomplete();

        try {
            $result = $execution($scope);
            $outcome = ExecutionOutcome::success($result);

            return $result;
        } catch (\Throwable $error) {
            if ($failure === null) {
                $outcome = ExecutionOutcome::failure($error);

                throw $error;
            }

            try {
                $result = $failure($error, $scope);
                $outcome = ExecutionOutcome::failure($error, $result);

                return $result;
            } catch (\Throwable $failureError) {
                $outcome = ExecutionOutcome::failure($failureError);

                throw $failureError;
            }
        } finally {
            $this->kernel->terminateExecution($scope, $outcome);
        }
    }
}