Added RPC endpoint for fetching user info.

src/MisuzuContext.php

@@ -292,6 +292,12 @@ class MisuzuContext {
             $this->authCtx
         ));
 
+        $rpcServer->register(new Users\UsersRpcActions(
+            $this->siteInfo,
+            $this->urls,
+            $this->usersCtx
+        ));
+
         // This RPC server will eventually despawn when Hanyuu fully owns auth
         $hanyuuRpcServer = new RpcServer;
         $routingCtx->getRouter()->scopeTo('/_hanyuu')->register($hanyuuRpcServer->createRouteHandler(

src/Users/UsersRpcActions.php

@@ -0,0 +1,78 @@
+<?php
+namespace Misuzu\Users;
+
+use RuntimeException;
+use Misuzu\SiteInfo;
+use Misuzu\URLs\URLRegistry;
+use Misuzu\Users\Assets\UserAvatarAsset;
+use Aiwass\Server\{RpcActionHandler,RpcQuery};
+use Index\Colour\{Colour,ColourRGB};
+
+final class UsersRpcActions extends RpcActionHandler {
+    public function __construct(
+        private SiteInfo $siteInfo,
+        private URLRegistry $urls,
+        private UsersContext $usersCtx
+    ) {}
+
+    #[RpcQuery('misuzu:users:getUser')]
+    public function queryGetUser(string $userId): array {
+        try {
+            $userInfo = $this->usersCtx->getUserInfo($userId, Users::GET_USER_ID);
+        } catch(RuntimeException) {
+            return ['error' => 'notfound'];
+        }
+
+        // TODO: there should be some kinda privacy controls for users
+
+        $rank = $this->usersCtx->getUserRank($userInfo);
+
+        $colour = $this->usersCtx->getUserColour($userInfo);
+        if($colour->shouldInherit()) {
+            $colourRaw = null;
+            $colourCSS = (string)$colour;
+        } else {
+            // Index doesn't have a proper toRawRGB func???
+            $colourRaw = Colour::toMisuzu($colour) & 0xFFFFFF;
+            $colourCSS = (string)ColourRGB::convert($colour);
+        }
+
+        $baseUrl = $this->siteInfo->getURL();
+
+        $avatars = [];
+        $formatAvatarUrl = fn($res = 0) => (
+            $baseUrl . $this->urls->format('user-avatar', ['user' => $userInfo->getId(), 'res' => $res])
+        );
+
+        $avatars[] = ['res' => 0, 'url' => $formatAvatarUrl()];
+        foreach(UserAvatarAsset::DIMENSIONS as $res)
+            $avatars[] = ['res' => $res, 'url' => $formatAvatarUrl($res)];
+
+        $avatars = array_reverse($avatars);
+
+        $output = [
+            'id' => $userInfo->getId(),
+            'name' => $userInfo->getName(),
+            'colour_raw' => $colourRaw,
+            'colour_css' => $colourCSS,
+            'rank' => $rank,
+            'country_code' => $userInfo->getCountryCode(),
+            'avatar_urls' => $avatars,
+            'profile_url' => $baseUrl . $this->urls->format('user-profile', ['user' => $userInfo->getId()]),
+            'created_at' => $userInfo->getCreatedAt()->toIso8601ZuluString(),
+        ];
+
+        if($userInfo->hasLastActive())
+           $output['last_active_at'] = $userInfo->getLastActiveAt()->toIso8601ZuluString();
+
+        if($userInfo->hasTitle())
+            $output['title'] = $userInfo->getTitle();
+
+        if($userInfo->isSuperUser())
+            $output['is_super'] = true;
+        if($userInfo->isDeleted())
+            $output['is_deleted'] = true;
+
+        return $output;
+    }
+}