SmoothPhp\CommandBus\CommandBus::generateMiddlewareCallChain()

Complexity

Conditions	3
Paths	3

Size

Total Lines	17
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	9
CRAP Score	3.009

Importance

Changes	1
Bugs	0	Features	0

<?php
    private function generateMiddlewareCallChain($middlewareList)
    {
        $lastCallable = function () {
            // the final callable does not run
        };

        while ($middleware = array_pop($middlewareList)) {
            if (!$middleware instanceof CommandBusMiddleware) {
                throw InvalidMiddlewareException::forMiddleware($middleware);
            }
            $lastCallable = function ($command) use ($middleware, $lastCallable) {
                return $middleware->execute($command, $lastCallable);
            };
        }

        return $lastCallable;
    }
}