Merge pull request #1 from spiral/feature/improve-sources

Improve sources

composer.json

@@ -1,32 +1,47 @@
 {
-  "name": "spiral/roadrunner-metrics",
-  "type": "server",
-  "description": "RoadRunner: Prometheus metrics RPC",
-  "license": "MIT",
-  "authors": [
-    {
-      "name": "Anton Titov / Wolfy-J",
-      "email": "wolfy.jd@gmail.com"
+    "name": "spiral/roadrunner-metrics",
+    "type": "library",
+    "description": "RoadRunner: Prometheus metrics RPC",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Anton Titov (wolfy-j)",
+            "email": "wolfy-j@spiralscout.com"
+        },
+        {
+            "name": "RoadRunner Community",
+            "homepage": "https://github.com/spiral/roadrunner/graphs/contributors"
+        }
+    ],
+    "require": {
+        "php": ">=7.4",
+        "symfony/polyfill-php80": "^1.22",
+        "spiral/goridge": "^3.0"
     },
-    {
-      "name": "RoadRunner Community",
-      "homepage": "https://github.com/spiral/roadrunner/graphs/contributors"
-    }
-  ],
-  "require": {
-    "php": ">=7.4",
-    "spiral/roadrunner": ">=2.0"
-  },
-  "require-dev": {
-    "phpstan/phpstan": "~0.12",
-    "phpunit/phpunit": "~8.0"
-  },
-  "scripts": {
-    "analyze": "phpstan analyze -c ./phpstan.neon.dist --no-progress --ansi"
-  },
-  "autoload": {
-    "psr-4": {
-      "Spiral\\RoadRunner\\Metrics\\": "src/"
-    }
-  }
+    "autoload": {
+        "psr-4": {
+            "Spiral\\RoadRunner\\Metrics\\": "src"
+        }
+    },
+    "require-dev": {
+        "jetbrains/phpstorm-attributes": "^1.0",
+        "vimeo/psalm": "^4.4",
+        "phpunit/phpunit": "~8.0"
+    },
+    "scripts": {
+        "analyze": "psalm"
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "2.1.x-dev"
+        }
+    },
+    "suggest": {
+        "spiral/roadrunner-cli": "Provides RoadRunner installation and management CLI tools"
+    },
+    "config": {
+        "sort-packages": true
+    },
+    "minimum-stability": "dev",
+    "prefer-stable": true
 }

psalm.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0"?>
+<psalm
+    errorLevel="1"
+    resolveFromConfigFile="true"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xmlns="https://getpsalm.org/schema/config"
+    xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
+>
+    <projectFiles>
+        <directory name="src" />
+        <ignoreFiles>
+            <directory name="vendor" />
+        </ignoreFiles>
+    </projectFiles>
+</psalm>

src/Collector.php

@@ -1,130 +1,177 @@
 <?php
 
 /**
- * High-performance PHP process supervisor and load balancer written in Go. Http core.
+ * This file is part of RoadRunner package.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
  */
 
 namespace Spiral\RoadRunner\Metrics;
 
-final class Collector implements \JsonSerializable
+use JetBrains\PhpStorm\ExpectedValues;
+use JetBrains\PhpStorm\Pure;
+use JsonSerializable;
+
+/**
+ * @psalm-import-type CollectorType from CollectorInterface
+ * @psalm-import-type ArrayFormatType from CollectorInterface
+ */
+final class Collector implements CollectorInterface, JsonSerializable
 {
-    public const HISTOGRAM = 'histogram';
-    public const GAUGE = 'gauge';
-    public const COUNTER = 'counter';
+    /**
+     * @var CollectorType
+     */
+    #[ExpectedValues(valuesFromClass: self::class)]
+    private string $type;
 
+    /**
+     * @var string
+     */
     private string $namespace = '';
+
+    /**
+     * @var string
+     */
     private string $subsystem = '';
-    private string $type;
+
+    /**
+     * @var string
+     */
     private string $help = '';
+
+    /**
+     * @var array<array-key, string>
+     */
     private array $labels = [];
+
+    /**
+     * @var array<array-key, float>
+     */
     private array $buckets = [];
 
     /**
-     * @param string $type
+     * @param CollectorType $type
      */
-    private function __construct(string $type)
-    {
+    private function __construct(
+        #[ExpectedValues(valuesFromClass: self::class)]
+        string $type
+    ) {
         $this->type = $type;
     }
 
     /**
-     * @param string $namespace
-     * @return $this
+     * {@inheritDoc}
      */
-    public function withNamespace(string $namespace): self
-    {
-        $c = clone $this;
-        $c->namespace = $namespace;
-
-        return $c;
+    #[Pure]
+    public function withNamespace(
+        string $namespace
+    ): self {
+        $self = clone $this;
+        $self->namespace = $namespace;
+
+        return $self;
     }
 
     /**
-     * @param string $subsystem
-     * @return $this
+     * {@inheritDoc}
      */
-    public function withSubsystem(string $subsystem): self
-    {
-        $c = clone $this;
-        $c->subsystem = $subsystem;
-
-        return $c;
+    #[Pure]
+    public function withSubsystem(
+        string $subsystem
+    ): self {
+        $self = clone $this;
+        $self->subsystem = $subsystem;
+
+        return $self;
     }
 
     /**
-     * @param string $help
-     * @return $this
+     * {@inheritDoc}
      */
-    public function withHelp(string $help): self
-    {
-        $c = clone $this;
-        $c->help = $help;
-
-        return $c;
+    #[Pure]
+    public function withHelp(
+        string $help
+    ): self {
+        $self = clone $this;
+        $self->help = $help;
+
+        return $self;
     }
 
     /**
-     * @param string ...$label
-     * @return $this
+     * {@inheritDoc}
      */
-    public function withLabels(string ...$label): self
-    {
-        $c = clone $this;
-        $c->labels = $label;
-
-        return $c;
+    #[Pure]
+    public function withLabels(
+        string ...$label
+    ): self {
+        $self = clone $this;
+        $self->labels = $label;
+
+        return $self;
     }
 
     /**
-     * @return array
+     * {@inheritDoc}
      */
-    public function jsonSerialize(): array
+    #[Pure]
+    public function toArray(): array
     {
         return [
             'namespace' => $this->namespace,
             'subsystem' => $this->subsystem,
-            'type' => $this->type,
-            'help' => $this->help,
-            'labels' => $this->labels,
-            'buckets' => $this->buckets,
+            'type'      => $this->type,
+            'help'      => $this->help,
+            'labels'    => $this->labels,
+            'buckets'   => $this->buckets,
         ];
     }
 
+    /**
+     * @return ArrayFormatType
+     */
+    #[Pure]
+    public function jsonSerialize(): array
+    {
+        return $this->toArray();
+    }
+
     /**
      * New histogram metric.
      *
      * @param float ...$bucket
      * @return static
      */
+    #[Pure]
     public static function histogram(float ...$bucket): self
     {
-        $c = new self(self::HISTOGRAM);
-        $c->buckets = $bucket;
+        $self = new self(self::TYPE_HISTOGRAM);
+        /** @psalm-suppress ImpurePropertyAssignment */
+        $self->buckets = $bucket;
 
-        return $c;
+        return $self;
     }
 
     /**
      * New gauge metric.
      *
      * @return static
      */
+    #[Pure]
     public static function gauge(): self
     {
-        $c = new self(self::GAUGE);
-
-        return $c;
+        return new self(self::TYPE_GAUGE);
     }
 
     /**
      * New counter metric.
      *
      * @return static
      */
+    #[Pure]
     public static function counter(): self
     {
-        $c = new self(self::COUNTER);
-
-        return $c;
+        return new self(self::TYPE_COUNTER);
     }
-}
+}