Add PHP types

.github/pull_request_template.md

@@ -26,4 +26,4 @@ include, for example:
 <!--- If you're unsure about any of these, don't hesitate to ask. We're here to help! -->
 - [ ] My code follows the code style of this project.
 - [ ] My change requires a change to the documentation.
-- [ ] I ran the full test suite before pushing the changes and all of the tests pass.
+- [ ] I ran the full test suite before pushing the changes and all the tests pass.

.github/workflows/test.yaml

@@ -15,7 +15,7 @@ jobs:
           - '8.4'
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Setup PHP, with composer and extensions
         uses: shivammathur/setup-php@v2
         with:

phpstan.neon

@@ -0,0 +1,6 @@
+parameters:
+    level: 1
+    paths:
+        - src
+    ignoreErrors:
+        - '#Unsafe usage of new static\(\)#'

src/Transformation/Action.php

@@ -20,11 +20,10 @@ class Action extends BaseAction
     /**
      * Action named constructor.
      *
-     * @param string $genericActionString
+     * @param string|null $genericActionString Generic action as a string.
      *
-     * @return BaseAction
      */
-    public static function generic($genericActionString = null)
+    public static function generic(?string $genericActionString = null): BaseAction
     {
         return (new static())->setGenericAction($genericActionString);
     }

src/Transformation/Adjustment/Addon/ViesusCorrect.php

@@ -28,12 +28,12 @@ class ViesusCorrect extends EffectQualifier
     /**
      * Enhances the image without correcting for red eye.
      */
-    const NO_REDEYE = 'no_redeye';
+    public const NO_REDEYE = 'no_redeye';
 
     /**
      * Enhances the image and also applies saturation to the skin tones in the image.
      */
-    const SKIN_SATURATION = 'skin_saturation';
+    public const SKIN_SATURATION = 'skin_saturation';
 
     /**
      * ViesusCorrect constructor.
@@ -46,9 +46,8 @@ public function __construct()
     /**
      * Enhances the image without correcting for red eye.
      *
-     * @return ViesusCorrect
      */
-    public function noRedEye()
+    public function noRedEye(): static
     {
         $this->getValue()->setSimpleNamedValue('no', 'redeye');
 
@@ -58,12 +57,11 @@ public function noRedEye()
     /**
      * Enhances the image and also applies saturation to the skin tones in the image.
      *
-     * @param int $level    The enhancement level. A positive value boosts the saturation and a negative value
+     * @param int|null $level The enhancement level. A positive value boosts the saturation and a negative value
      *                      reduces the saturation. (Range: -100 to 100, Server default: 50).
      *
-     * @return ViesusCorrect
      */
-    public function skinSaturation($level = null)
+    public function skinSaturation(?int $level = null): static
     {
         if ($level) {
             $this->getValue()->setSimpleNamedValue(self::SKIN_SATURATION, $level);

src/Transformation/Adjustment/Adjust.php

@@ -18,33 +18,33 @@
 abstract class Adjust
 {
     // Common adjustments
-    const BRIGHTNESS = 'brightness';
-    const CONTRAST   = 'contrast';
-    const SATURATION = 'saturation';
-    const GAMMA      = 'gamma';
+    public const BRIGHTNESS = 'brightness';
+    public const CONTRAST   = 'contrast';
+    public const SATURATION = 'saturation';
+    public const GAMMA      = 'gamma';
 
     // Image adjustments
-    const RED            = 'red';
-    const GREEN          = 'green';
-    const BLUE           = 'blue';
-    const BRIGHTNESS_HSB = 'brightness_hsb';
-    const HUE            = 'hue';
-    const TINT           = 'tint';
-    const REPLACE_COLOR  = 'replace_color';
-    const RECOLOR        = 'recolor';
+    public const RED = 'red';
+    public const GREEN = 'green';
+    public const BLUE  = 'blue';
+    public const BRIGHTNESS_HSB = 'brightness_hsb';
+    public const HUE            = 'hue';
+    public const TINT    = 'tint';
+    public const REPLACE_COLOR = 'replace_color';
+    public const RECOLOR       = 'recolor';
 
-    const AUTO_BRIGHTNESS = 'auto_brightness';
-    const AUTO_COLOR      = 'auto_color';
-    const AUTO_CONTRAST   = 'auto_contrast';
-    const FILL_LIGHT      = 'fill_light';
-    const IMPROVE         = 'improve';
-    const VIBRANCE        = 'vibrance';
-    const VIESUS_CORRECT  = 'viesus_correct';
+    public const AUTO_BRIGHTNESS = 'auto_brightness';
+    public const AUTO_COLOR      = 'auto_color';
+    public const AUTO_CONTRAST = 'auto_contrast';
+    public const FILL_LIGHT    = 'fill_light';
+    public const IMPROVE    = 'improve';
+    public const VIBRANCE = 'vibrance';
+    public const VIESUS_CORRECT = 'viesus_correct';
 
-    const SHARPEN          = 'sharpen';
-    const UNSHARP_MASK     = 'unsharp_mask';
+    public const SHARPEN = 'sharpen';
+    public const UNSHARP_MASK = 'unsharp_mask';
 
-    const OPACITY_THRESHOLD = 'opacity_threshold';
+    public const OPACITY_THRESHOLD = 'opacity_threshold';
 
     use CommonAdjustmentTrait;
     use ImageAdjustmentTrait;

src/Transformation/Adjustment/CommonAdjustmentTrait.php

@@ -22,47 +22,43 @@ trait CommonAdjustmentTrait
     /**
      * Adjusts the brightness.
      *
-     * @param int $level The level of brightness (Range: -99 to 100, Server default: 80)
+     * @param int|null $level The level of brightness (Range: -99 to 100, Server default: 80)
      *
-     * @return LevelEffectAction
      */
-    public static function brightness($level = null)
+    public static function brightness(?int $level = null): LevelEffectAction
     {
         return EffectAction::withLevel(Adjust::BRIGHTNESS, EffectRange::BRIGHTNESS, $level);
     }
 
     /**
      * Adjusts the contrast.
      *
-     * @param int $level The level of contrast (Range: -100 to 100, Server default: 0)
+     * @param int|null $level The level of contrast (Range: -100 to 100, Server default: 0)
      *
-     * @return LevelEffectAction
      */
-    public static function contrast($level = null)
+    public static function contrast(?int $level = null): LevelEffectAction
     {
         return EffectAction::withLevel(Adjust::CONTRAST, EffectRange::DEFAULT_RANGE, $level);
     }
 
     /**
      * Adjusts the color saturation.
      *
-     * @param int $level The level of color saturation (Range: -100 to 100, Server default: 80).
+     * @param int|null $level The level of color saturation (Range: -100 to 100, Server default: 80).
      *
-     * @return LevelEffectAction
      */
-    public static function saturation($level = null)
+    public static function saturation(?int $level = null): LevelEffectAction
     {
         return EffectAction::withLevel(Adjust::SATURATION, EffectRange::DEFAULT_RANGE, $level);
     }
 
     /**
      * Adjusts the gamma level.
      *
-     * @param int $level The level of gamma (Range: -50 to 150, Server default: 0).
+     * @param int|null $level The level of gamma (Range: -50 to 150, Server default: 0).
      *
-     * @return LevelEffectAction
      */
-    public static function gamma($level = null)
+    public static function gamma(?int $level = null): LevelEffectAction
     {
         return EffectAction::withLevel(Adjust::GAMMA, EffectRange::SHIFTED_RANGE, $level);
     }
@@ -72,11 +68,10 @@ public static function gamma($level = null)
      *
      * @see https://cloudinary.com/documentation/image_transformations#applying_3d_luts_to_images
      *
-     * @param string $lutId The 3D LUT file id
+     * @param string|null $lutId The 3D LUT file id
      *
-     * @return LutLayer
      */
-    public static function by3dLut($lutId = null)
+    public static function by3dLut(?string $lutId = null): LutLayer
     {
         return ClassUtils::verifyInstance($lutId, LutLayer::class);
     }
@@ -87,12 +82,11 @@ public static function by3dLut($lutId = null)
      * This is a generic way to apply an effect.  For example, you could set $name to "gamma" and $args to 50, and this
      * would have the same effect as calling gamma(50).
      *
-     * @param string $name The effect name.
+     * @param string $name    The effect name.
      * @param mixed  ...$args The qualifiers of the effect.
      *
-     * @return EffectAction
      */
-    public static function generic($name, ...$args)
+    public static function generic(string $name, ...$args): EffectAction
     {
         return EffectAction::named($name, ...$args);
     }

src/Transformation/Adjustment/FillLight.php

@@ -20,7 +20,7 @@ class FillLight extends BlendEffectQualifier
     /**
      * @var array $valueOrder The order of the values.
      */
-    protected $valueOrder = [0, 'value', 'bias'];
+    protected array $valueOrder = [0, 'value', 'bias'];
 
     /**
      * FillLight constructor.
@@ -40,11 +40,10 @@ public function __construct($blend = null, $bias = null)
     /**
      * Sets the bias.
      *
-     * @param int $bias The bias to apply to the fill light effect (Range: -100 to 100, Server default: 0).
+     * @param ?int $bias The bias to apply to the fill light effect (Range: -100 to 100, Server default: 0).
      *
-     * @return FillLight
      */
-    public function bias($bias)
+    public function bias(?int $bias): static
     {
         $this->getValue()->setSimpleValue('bias', $bias);