I really dont like this but I will fix it later

api.php

@@ -8,6 +8,23 @@ $routes = [
         exit();
     },
 
+    'i11n' => function () {
+        global $path;
+        return match ($path[2]) {
+            'languages' => [
+                "response" => [
+                    'success' => true,
+                    'status_code' => 200
+                ],
+                'body' => [
+                    'current' => $_SESSION['lang'],
+                    'languages' => LANGAUGES
+                ]
+            ],
+            default => 404,
+        };
+    },
+
     'status' => function () {
         http_response_code(200);
 

common/strings.php

@@ -1,5 +1,33 @@
 <?php
 
+const LANGAUGES = [
+    [
+        "code" => 'en',
+        "name" => "English (Traditional)",
+        "flag" => "uk"
+    ],
+    [
+        'code' => 'en_US',
+        "name" => 'English (Simplified)',
+        'flag' => 'usa'
+    ],
+    [
+        'code' => 'en_UWU',
+        'name' => 'Cute English',
+        'flag' => 'owo'
+    ],
+    [
+        'code' => 'ga',
+        'name' => 'Irish',
+        'flag' => 'ie'
+    ],
+    [
+        'code' => 'nb_NO',
+        'name' => 'Norwegian Bokmål',
+        'flag' => 'no'
+    ]
+];
+
 function get_string($key="generic.generic", $substitutes=[]) {
     global $LANG;
 
@@ -27,6 +55,27 @@ function get_string($key="generic.generic", $substitutes=[]) {
     return $result;
 }
 
+function get_language_code_based_on_browser_locale(): string
+{
+    $locale = locale_accept_from_http($_SERVER['HTTP_ACCEPT_LANGUAGE']);
+
+    $locales = [ // Converts locale to its respective language.
+        'en_GB' => 'en',
+        'en_IE' => 'en',
+        'en' => 'en',
+    ];
+
+    if (array_key_exists($locale, $locales)) {
+        return $locales[$locale];
+    }
+
+    if (str_starts_with("en", $locale)) {
+        return "en";
+    }
+
+    return $locale;
+}
+
 function patch_lang($lang="en"): void
 {
 

index.php

@@ -25,11 +25,19 @@ require_once 'common/strings.php';
 require_once 'common/account_utils.php';
 require_once 'common/database.php';
 
-
 // Starts the session
 // TODO: write this to use the database to work across more than one server (e.g. don't use PHP sessions)
 session_start();
 
+if (empty($_SESSION)) {
+    $_SESSION['auth'] = false;
+    $_SESSION['id'] = null;
+}
+
+if (!isset($_SESSION['lang'])) {
+    $_SESSION['lang'] =  get_language_code_based_on_browser_locale();
+}
+
 $user = null;
 
 if ($_SESSION['auth']) {
@@ -61,6 +69,14 @@ if (str_ends_with($path_raw, '/') && $path_raw != '/') {
     exit;
 }
 
+// If there's a 'lang' query param, change the language!
+if (array_key_exists('lang', $query)) {
+    $_SESSION['lang'] = $query['lang'];
+}
+
+patch_lang($_SESSION['lang']);
+
+
 $routes = [
     '' => function () { require 'views/home.php'; },
     'api' => function () {
@@ -85,6 +101,17 @@ $routes = [
         }
         exit();
     },
+    'dashboard' => function () {
+        global $user;
+        requires_auth();
+
+        if (isset($path[2])) {
+            return 404;
+        }
+
+        require 'views/dashboard.php';
+        return 200;
+    },
     'profile' => function () {
         global $path, $user, $profile_owner; // don't forget this lol
 
@@ -101,15 +128,8 @@ $routes = [
         require 'views/profile.php';
         return 200;
     },
-    'dashboard' => function () {
-        requires_auth();
-
-        if (isset($path[2])) {
-            return 404;
-        }
-
-        require 'views/dashboard.php';
-        return 200;
+    'settings' => function () {
+        require 'views/settings.php';
     }
 ];
 

scripts/langauge_switcher.js

@@ -0,0 +1,28 @@
+
+const select = document.createElement('select');
+const script = document.scripts[document.scripts.length - 1];
+
+const langs_req = fetch('/api/i11n/languages')
+    .then(async data => {
+        return await data.json();
+    })
+    .then(async json => {
+        console.log(json)
+        for (const lang of json.body.languages) {
+            console.log(lang)
+            let new_opt = document.createElement('option');
+            new_opt.value = lang.code;
+            new_opt.innerText = lang.name;
+            select.appendChild(new_opt);
+        }
+
+        select.value = json.body.current;
+
+        script.parentElement.insertBefore(select, script);
+})
+
+let separator = (window.location.href.indexOf("?")===-1)?"?":"&";
+
+select.onchange = function () {
+    window.location.href = window.location.href + separator + `lang=${select.value}`;
+}

strings

@@ -1 +1 @@
-Subproject commit 919271adb8e055d09f08898b812f9e641f693543
+Subproject commit d9131afc20afc0bb4205990bb34f8c455ae81f8d