Added a new Exception for Cache failures; added new methods to the ma…

…in Api class and to the Alert class

src/Api.php

@@ -9,6 +9,7 @@
 use NWS\Features\ObservationStation;
 use NWS\Exceptions\InvalidRequestException;
 use NWS\Exceptions\ApiNotOkException;
+use NWS\Exceptions\CacheException;
 use DateTimeZone;
 
 class Api
@@ -26,17 +27,28 @@ class Api
     public function __construct(string $domain, string $email)
     {
         // derive our user agent for the API requests
-        $this->user_agent = "($domain, $email)";
+        $this->setUserAgent($domain, $email);
 
         // build up our HTTP client for making requests to the API
         $this->client = new HttpClient([
             'http_errors' => false,
             'headers' => [
-                'User-Agent' => $this->user_agent
+                'User-Agent' => $this->getUserAgent()
             ]
         ]);
     }
 
+    public function getUserAgent(): string
+    {
+        return $this->user_agent;
+    }
+
+    public function setUserAgent(string $domain, string $email): self
+    {
+        $this->user_agent = "({$domain}, {$email})";
+        return $this;
+    }
+
     public function getCacheLifetime(): int
     {
         return $this->cache_lifetime;
@@ -78,13 +90,13 @@ public function setBaseUrl(string $base_url): self
         return $this;
     }
 
-    public function clearCache(): bool|self
+    public function clearCache(): self
     {
         if($this->cache->clear()) {
             return $this;
         }
 
-        return false;
+        throw new CacheException("Failed to clear the cache!");
     }
 
     public function setTimezone(string $timezone): self
@@ -101,6 +113,7 @@ public function getTimezone(): DateTimeZone
     public function get($url): object|bool
     {
         // the user did not opt to use the cache
+        // so make a direct request to the URL
         if(!$this->cache) {
             $http_request = $this->client->get($url);
             $http_response_code = $http_request->getStatusCode();

src/Exceptions/CacheException.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace NWS\Exceptions;
+
+use Exception;
+
+class CacheException extends Exception
+{
+    //
+}

src/Features/Alert.php

@@ -11,6 +11,7 @@
 use NWS\Enums\AlertMessageType;
 use NWS\Traits\IsCallable;
 use NWS\Support\Carbon;
+use Illuminate\Support\Collection;
 
 class Alert
 {
@@ -120,6 +121,24 @@ public function instruction(): string
         return $this->properties_instruction();
     }
 
+    public function affectedZones(): Collection
+    {
+        $return = [];
+
+        $zones = $this->properties_affectedZones();
+        foreach($zones as $zone_url) {
+            $return[] = new ForecastZone($this->api->get($zone_url), $this->api);
+        }
+
+        return collect($return);
+    }
+
+    public function affectedZone(int $i = 0): ForecastZone
+    {
+        $zone = $this->properties_affectedZones()[$i];
+        return new ForecastZone($this->api->get($zone), $this->api);
+    }
+
     public function response(): AlertResponse
     {
         return AlertResponse::fromName($this->properties_response());