Passed
Branch feature/static-formatter (1eb682)
by Daniel
01:46
created

Header::addFormatter()   A

Complexity

Conditions 3
Paths 3

Size

Total Lines 10
Code Lines 6

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 7
CRAP Score 3

Importance

Changes 0
Metric Value
cc 3
eloc 6
nc 3
nop 1
dl 0
loc 10
ccs 7
cts 7
cp 1
crap 3
rs 9.4285
c 0
b 0
f 0
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<?php declare(strict_types=1);
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/**
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 * This file is part of the Csv-Machine package.
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 *
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 * (c) Dan McAdams <[email protected]>
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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namespace RoadBunch\Csv\Header;
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use RoadBunch\Csv\Exception\FormatterException;
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use RoadBunch\Csv\Exception\InvalidInputArrayException;
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use RoadBunch\Csv\Formatter\FormatterInterface;
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/**
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 * Class Header
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 *
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 * @author  Dan McAdams
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 * @package RoadBunch\Csv\Header
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 */
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class Header implements HeaderInterface
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{
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    /** @var array */
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    protected $columns;
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    /** @var FormatterInterface[] */
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    protected $formatters = [];
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    /**
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     * Header constructor.
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     *
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     * @param array $columns array of strings of column names
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     *
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     * @throws InvalidInputArrayException
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     */
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    public function __construct(array $columns = [])
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    {
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        foreach ($columns as $column) {
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            if (!is_string($column)) {
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                throw new InvalidInputArrayException('Columns must be array of (string)');
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            }
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        }
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        $this->columns = $columns;
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    }
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    /**
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     * @param string $column
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     *
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     * @return void
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     */
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    public function addColumn(string $column)
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    {
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        $this->columns[] = $column;
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    }
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    /**
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     * @param mixed $formatter
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     * @return HeaderInterface
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     * @throws FormatterException
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     */
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    public function addFormatter($formatter): HeaderInterface
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    {
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        if ($formatter instanceof FormatterInterface) {
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            $this->formatters[] = $formatter;
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            return $this;
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        }
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        if (is_string($formatter)) {
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            return $this->addFormatterFromString($formatter);
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        }
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        throw new FormatterException('Invalid formatter provided, must implement FormatterInterface');
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    }
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    /**
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     * @return array
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     */
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    public function getFormattedColumns(): array
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    {
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        $columns = $this->columns;
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        foreach ($this->formatters as $formatter) {
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            $columns = $formatter::format($columns);
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        }
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        return $columns;
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    }
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    /**
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     * @param $formatter
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     * @return $this
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     * @throws FormatterException
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     */
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    private function addFormatterFromString($formatter): Header
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    {
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        if (class_exists($formatter) && in_array(FormatterInterface::class, class_implements($formatter))) {
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            $this->formatters[] = $formatter;
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            return $this;
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        }
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        throw new FormatterException(sprintf('%s is not a class or does not implement FormatterInterface',
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            (string)$formatter));
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    }
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}
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