Admin+Config: Add toggle that disables Cloudflare cache

It's now possible to disable the Cloudflare cache during development,
so the hacky workaround with the random number in the CSS/JS URLs is no
longer needed.

Development mode is automatically disabled by Cloudflare after 4 hours.

app/controllers/AdminController.php

@@ -2,6 +2,7 @@
 
 namespace App\Controllers;
 
+use App\Classes\Config;
 use App\Classes\User;
 
 class AdminController extends PageController {
@@ -12,6 +13,37 @@ class AdminController extends PageController {
 		parent::view('', 'Admin');
 	}
 
+	public function developmentAction(): void
+	{
+		if (Config::c('DEVELOPMENT_MODE') == 'cloudflare') {
+			$token = Config::c('DEVELOPMENT_MODE_TOKEN');
+			$zone = Config::c('DEVELOPMENT_MODE_ZONE');
+
+			$url = "https://api.cloudflare.com/client/v4/zones/$zone/settings/development_mode";
+			$headers = [
+				"Authorization: Bearer $token",
+				"Content-Type: application/json"
+			];
+			$data = '{"value": "on"}';
+
+			$curl = curl_init();
+			curl_setopt($curl, CURLOPT_URL, $url);
+			curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
+			curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
+			curl_setopt($curl, CURLOPT_CUSTOMREQUEST, 'PATCH');
+			curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
+			// curl_setopt($curl, CURLINFO_HEADER_OUT, 1);
+
+			$response = curl_exec($curl);
+			// $info = curl_getinfo($curl, CURLINFO_HEADER_OUT);
+
+			curl_close($curl);
+		}
+
+		echo $response;
+		// echo $info;
+	}
+
 	public function toggleAction(): void {
 		User::toggle();
 		echo User::getToggle() ? '1' : '0';