Implemented Loader class and added reference repository (for now as git repo, in future - as composer package)

composer.json

@@ -1,6 +1,7 @@
 {
     "name": "ely/php-tempmailbuster",
     "license": "MIT",
+    "type": "library",
     "authors": [
         {
             "name": "ErickSkrauch",
@@ -9,11 +10,26 @@
     ],
     "require": {
         "php" : "~5.4|~7.0",
-        "lib-curl" : "*"
+        "lib-curl" : "*",
+        "ely/anti-tempmail-repo" : "*"
     },
     "require-dev": {
         "phpunit/phpunit": "~4.8 || ~5.0"
     },
+    "repositories": [
+        {
+            "type": "package",
+            "package": {
+                "name": "ely/anti-tempmail-repo",
+                "version": "0.0.0",
+                "source": {
+                    "url": "https://github.com/elyby/anti-tempmail-repo",
+                    "type": "git",
+                    "reference": "master"
+                }
+            }
+        }
+    ],
     "autoload": {
         "psr-4": {
             "Ely\\TempMailBuster\\": "src"

src/Loader.php

@@ -0,0 +1,38 @@
+<?php
+namespace Ely\TempMailBuster;
+
+use Exception;
+
+class Loader
+{
+    public static function getPaths()
+    {
+        return [
+            __DIR__ . '/../vendor/ely/anti-tempmail-repo/data.json',
+            __DIR__ . '/../../anti-tempmail-repo/data.json',
+        ];
+    }
+
+    public static function load()
+    {
+        $paths = static::getPaths();
+        $dataPath = null;
+        foreach($paths as $path) {
+            if (file_exists($path)) {
+                $dataPath = $path;
+                break;
+            }
+        }
+
+        if ($dataPath === null) {
+            throw new Exception('Cannot find data file. Please check getPaths() implementation.');
+        }
+
+        $data = json_decode(file_get_contents($dataPath), true);
+        if (!is_array($data)) {
+            throw new Exception('Cannot decode json from data file.');
+        }
+
+        return $data;
+    }
+}

tests/Loadertest.php

@@ -0,0 +1,47 @@
+<?php
+namespace Ely\TempMailBuster;
+
+class LoaderTest extends \PHPUnit_Framework_TestCase
+{
+    public function testGetPaths()
+    {
+        $this->assertTrue(is_array(Loader::getPaths()));
+    }
+
+    public function testLoad()
+    {
+        $this->assertTrue(is_array(Loader::load()));
+    }
+
+    public function testLoadExceptionWrongPaths()
+    {
+        $this->expectException('Exception');
+        LoaderWithWrongPaths::load();
+    }
+
+    public function testLoadExceptionInvalidJson()
+    {
+        $this->expectException('Exception');
+        LoaderWithInvalidJson::load();
+    }
+}
+
+class LoaderWithWrongPaths extends Loader
+{
+    public static function getPaths()
+    {
+        return [
+            __DIR__ . '/virtual_reality.json',
+        ];
+    }
+}
+
+class LoaderWithInvalidJson extends Loader
+{
+    public static function getPaths()
+    {
+        return [
+            __DIR__ . '/LoaderTest.php',
+        ];
+    }
+}