Add more type hints and return types

Fixes #20

src/Model/Filter.php

@@ -15,7 +15,7 @@ class Filter
     /**
      * @return static
      */
-    public static function create()
+    public static function create(): self
     {
         return new static();
     }
@@ -25,7 +25,7 @@ class Filter
      *
      * @return $this
      */
-    public function has($value)
+    public function has(string $value): self
     {
         $this->properties['hasTheWord'] = $value;
 
@@ -37,7 +37,7 @@ class Filter
      *
      * @return $this
      */
-    public function hasNot($value)
+    public function hasNot(string $value): self
     {
         $this->properties['doesNotHaveTheWord'] = $value;
 
@@ -49,7 +49,7 @@ class Filter
      *
      * @return $this
      */
-    public function from($values)
+    public function from($values): self
     {
         if (!empty($values)) {
             $this->properties['from'] = collect($values)->map(function ($value) {
@@ -65,7 +65,7 @@ class Filter
      *
      * @return $this
      */
-    public function to($values)
+    public function to($values): self
     {
         if (!empty($values)) {
             $this->properties['to'] = collect($values)->map(function ($value) {
@@ -81,7 +81,7 @@ class Filter
      *
      * @return $this
      */
-    public function subject($values)
+    public function subject($values): self
     {
         $this->properties['subject'] = collect($values)->map(function ($value) {
             return json_encode($value);
@@ -93,7 +93,7 @@ class Filter
     /**
      * @return $this
      */
-    public function hasAttachment()
+    public function hasAttachment(): self
     {
         $this->properties['hasAttachment'] = 'true';
 
@@ -107,7 +107,7 @@ class Filter
      *
      * @return $this
      */
-    public function fromList($value)
+    public function fromList($value): self
     {
         $value = collect($value)->implode(self::SEPARATOR);
         $this->has("list:{$value}");
@@ -118,7 +118,7 @@ class Filter
     /**
      * @return $this
      */
-    public function excludeChats()
+    public function excludeChats(): self
     {
         $this->properties['excludeChats'] = 'true';
 
@@ -130,7 +130,7 @@ class Filter
      *
      * @return $this
      */
-    public function label($label)
+    public function label(string $label): self
     {
         $this->properties['label'] = $label;
 
@@ -140,7 +140,7 @@ class Filter
     /**
      * @return $this
      */
-    public function archive()
+    public function archive(): self
     {
         $this->properties['shouldArchive'] = 'true';
 
@@ -152,7 +152,7 @@ class Filter
      *
      * @return $this
      */
-    public function labelAndArchive($label)
+    public function labelAndArchive(string $label): self
     {
         $this->label($label)->archive();
 
@@ -162,7 +162,7 @@ class Filter
     /**
      * @return $this
      */
-    public function spam()
+    public function spam(): self
     {
         $this->properties['shouldSpam'] = 'true';
         $this->properties['shouldNeverSpam'] = 'false';
@@ -173,7 +173,7 @@ class Filter
     /**
      * @return $this
      */
-    public function neverSpam()
+    public function neverSpam(): self
     {
         $this->properties['shouldSpam'] = 'false';
         $this->properties['shouldNeverSpam'] = 'true';
@@ -184,7 +184,7 @@ class Filter
     /**
      * @return $this
      */
-    public function trash()
+    public function trash(): self
     {
         $this->properties['shouldTrash'] = 'true';
 
@@ -194,7 +194,7 @@ class Filter
     /**
      * @return $this
      */
-    public function read()
+    public function read(): self
     {
         $this->properties['markAsRead'] = 'true';
 
@@ -204,7 +204,7 @@ class Filter
     /**
      * @return $this
      */
-    public function star()
+    public function star(): self
     {
         $this->properties['shouldStar'] = 'true';
 
@@ -216,7 +216,7 @@ class Filter
      *
      * @return $this
      */
-    public function forward($to)
+    public function forward(string $to): self
     {
         $this->properties['forwardTo'] = $to;
 
@@ -226,7 +226,7 @@ class Filter
     /**
      * @return $this
      */
-    public function important()
+    public function important(): self
     {
         $this->properties['shouldAlwaysMarkAsImportant'] = 'true';
 
@@ -236,7 +236,7 @@ class Filter
     /**
      * @return $this
      */
-    public function notImportant()
+    public function notImportant(): self
     {
         $this->properties['shouldNeverMarkAsImportant'] = 'true';
 
@@ -248,7 +248,7 @@ class Filter
      *
      * @return $this
      */
-    public function categorise($category)
+    public function categorise(string $category): self
     {
         $this->properties['smartLabelToApply'] = $category;
 
@@ -261,7 +261,7 @@ class Filter
      * @return array
      * @deprecated toArray()
      */
-    public function getProperties()
+    public function getProperties(): array
     {
         return $this->properties;
     }
@@ -271,7 +271,7 @@ class Filter
      *
      * @return array
      */
-    public function toArray()
+    public function toArray(): array
     {
         return $this->properties;
     }