init

app/Http/Controllers/WeatherstackController.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Support\Facades\Http;
+use Illuminate\Http\Client\Response as ClientResponse;
+use App\Models\City;
+
+class WeatherstackController extends Controller
+{
+    
+    public static function requestByCity($city) {      
+        $access_key = config('app.weatherstack_api_key');
+        $units = 'm'; /* m for Metric, s for Scientific, f for Fahrenheit */ 
+        $url = 'http://api.weatherstack.com/current';
+
+        return Http::acceptJson()->get($url, [
+            'access_key' => $access_key,
+            'units' => $units,
+            'query' => $city
+        ]);
+    }
+
+    public function checkResponse($city, ClientResponse $response) {
+        if ($response->successful()) {            
+            [$isValidResponse, $error] = $this->checkErrorMessage($city, $response);
+        }
+        elseif ($response->failed()) {
+            $isValidResponse = false;
+            $error = 'Request failed.';
+        }
+
+        return [$isValidResponse, $error];
+    }
+
+    public static function checkErrorMessage($city, ClientResponse $response) {   
+        $isValidResponse = true;
+        $error = '';
+
+        if ($response->json('success') === false) {
+            $isValidResponse = false;
+
+            ($response->json('error.type') === 'usage_limit_reached')   ? $error = 'The usage limit of your API key has been reached.'
+                                                                        : $error = "No city named '{$city}' could be found.";
+        }
+        elseif (City::where('location_name', $response->json('location.name'))->exists()) {
+            $isValidResponse = false;
+            $error = "'{$response->json('location.name')}, {$response->json('location.country')}' has been already added.";
+        }
+
+        return [$isValidResponse, $error];
+    }
+
+}