class NamedParameterMap

class NamedParameterMap extends AbstractMap {
    use TypeTrait;
    use ValueToStringTrait;
    
    /**
     * Named parameters defined for this map.
     *
     * @var array<string, string>
     */
    private readonly array $namedParameters;
    
    /**
     * Constructs a new `NamedParameterMap`.
     *
     * @param array<array-key, string> $namedParameters The named parameters defined for this map.
     * @param array<string, mixed> $data An initial set of data to set on this map.
     */
    public function __construct(array $namedParameters, array $data = []) {
        $this->namedParameters = $this->filterNamedParameters($namedParameters);
        parent::__construct($data);
    }
    
    /**
     * Returns named parameters set for this `NamedParameterMap`.
     *
     * @return array<string, string>
     */
    public function getNamedParameters() : array {
        return $this->namedParameters;
    }
    public function offsetSet(mixed $offset, mixed $value) : void {
        if (!array_key_exists($offset, $this->namedParameters)) {
            throw new InvalidArgumentException('Attempting to set value for unconfigured parameter \'' . $this->toolValueToString($offset) . '\'');
        }
        if ($this->checkType($this->namedParameters[$offset], $value) === false) {
            throw new InvalidArgumentException('Value for \'' . $offset . '\' must be of type ' . $this->namedParameters[$offset] . '; value is ' . $this->toolValueToString($value));
        }
        $this->data[$offset] = $value;
    }
    
    /**
     * Given an array of named parameters, constructs a proper mapping of
     * named parameters to types.
     *
     * @param array<array-key, string> $namedParameters The named parameters to filter.
     *
     * @return array<string, string>
     */
    protected function filterNamedParameters(array $namedParameters) : array {
        $names = [];
        $types = [];
        foreach ($namedParameters as $key => $value) {
            if (is_int($key)) {
                $names[] = $value;
                $types[] = 'mixed';
            }
            else {
                $names[] = $key;
                $types[] = $value;
            }
        }
        return array_combine($names, $types) ?: [];
    }

}