Completed
Push — master ( 4c2fab...6ca203 )
by Dan
03:07
created

CommandsHelper::getFont()   A

Complexity

Conditions 3
Paths 3

Size

Total Lines 12
Code Lines 6

Duplication

Lines 0
Ratio 0 %

Importance

Changes 1
Bugs 0 Features 0
Metric Value
c 1
b 0
f 0
dl 0
loc 12
rs 9.4285
cc 3
eloc 6
nc 3
nop 2
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<?php
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namespace SixtyNine\Cloud\Command;
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use Imagine\Image\ImageInterface;
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use SixtyNine\Cloud\Builder\PalettesBuilder;
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use SixtyNine\Cloud\Color\ColorGeneratorInterface;
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use SixtyNine\Cloud\Color\RandomColorGenerator;
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use SixtyNine\Cloud\Color\RotateColorGenerator;
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use SixtyNine\Cloud\Factory\FontsFactory;
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use SixtyNine\Cloud\Factory\PlacerFactory;
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use SixtyNine\Cloud\FontSize\BoostFontSizeGenerator;
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use SixtyNine\Cloud\FontSize\DimFontSizeGenerator;
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use SixtyNine\Cloud\FontSize\FontSizeGeneratorInterface;
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use SixtyNine\Cloud\FontSize\LinearFontSizeGenerator;
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use SixtyNine\Cloud\Placer\PlacerInterface;
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class CommandsHelper
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{
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    protected $allowedFontSizeBoosts = array('linear', 'dim', 'boost');
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    protected $allowedPaletteTypes = array('cycle', 'random');
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    protected $allowedOutputFormats = array('gif', 'jpeg', 'png');
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    /**
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     * @param string $name
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     * @return PlacerInterface
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     * @throws \InvalidArgumentException
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     */
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    public function getPlacer($name)
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    {
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        $availablePlacers = PlacerFactory::getInstance()->getPlacersNames();
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        if ($name) {
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            if (!in_array($name, $availablePlacers)) {
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                throw new \InvalidArgumentException('Word placer not found: ' . $name);
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            }
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            return $name;
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        }
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        if (!count($availablePlacers)) {
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            throw new \InvalidArgumentException('No word placers available');
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        }
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        return $availablePlacers[0];
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    }
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    /**
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     * @param FontsFactory $factory
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     * @param string $font
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     * @return string
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     * @throws \InvalidArgumentException
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     */
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    public function getFont(FontsFactory $factory, $font)
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    {
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        if ($font) {
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            return $font;
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        }
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        if (0 === count($factory->getFonts())) {
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            throw new \InvalidArgumentException('No font file found');
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        }
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        return $factory->getFonts()[0];
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    }
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    /**
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     * @param string $type
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     * @return FontSizeGeneratorInterface
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     * @throws \InvalidArgumentException
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     */
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    public function getFontSizeGenerator($type = 'linear')
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    {
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        if (!in_array($type, $this->allowedFontSizeBoosts)) {
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            throw new \InvalidArgumentException('Invalid font size boost: ' . $type);
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        }
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        $generatorClass = LinearFontSizeGenerator::class;
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        if ($type === 'dim') {
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            $generatorClass = DimFontSizeGenerator::class;
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        }
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        if ($type === 'boost') {
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            $generatorClass = BoostFontSizeGenerator::class;
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        }
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        return new $generatorClass();
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    }
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    /**
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     * @param string $paletteName
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     * @param string $paletteType
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     * @param string $palettesFile
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     * @return bool|ColorGeneratorInterface
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     * @throws \InvalidArgumentException
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     */
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    public function getColorGenerator($paletteName, $paletteType, $palettesFile = null)
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    {
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        if ($paletteName && $paletteType) {
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            if (!in_array($paletteType, $this->allowedPaletteTypes)) {
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                throw new \InvalidArgumentException('Palette type must be either "cycle" or "random"');
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            }
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            $file = $palettesFile
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                ? $palettesFile
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                : __DIR__ . '/../Resources/palettes.yml'
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            ;
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            $paletteBuilder = PalettesBuilder::create()->importPalettes($file);
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            $palette = $paletteBuilder->getNamedPalette($paletteName);
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            $generatorClass = ($paletteType === 'cycle')
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                ? RotateColorGenerator::class
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                : RandomColorGenerator::class
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            ;
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            return new $generatorClass($palette);
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        }
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        return false;
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    }
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    /**
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     * @param ImageInterface $image
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     * @param string $outputFormat
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     * @param string $outputFile
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     * @throws \InvalidArgumentException
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     */
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    public function output(ImageInterface $image, $outputFormat, $outputFile = null)
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    {
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        if (!in_array($outputFormat, $this->allowedOutputFormats)) {
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            throw new \InvalidArgumentException('Invalid output format: ' . $outputFormat);
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        }
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        if ($outputFile) {
0 ignored issues
show
Bug Best Practice introduced by
The expression $outputFile of type string|null is loosely compared to true; this is ambiguous if the string can be empty. You might want to explicitly use !== null instead.

In PHP, under loose comparison (like ==, or !=, or switch conditions), values of different types might be equal.

For string values, the empty string '' is a special case, in particular the following results might be unexpected:

''   == false // true
''   == null  // true
'ab' == false // false
'ab' == null  // false

// It is often better to use strict comparison
'' === false // false
'' === null  // false
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            $image->save($outputFile, array('format' => $outputFormat));
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            return;
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        }
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        echo $image->get($outputFormat);
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    }
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}
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