feat: 새 부대편성 페이지 (#223)

Reviewed-on: https://storage.hided.net/gitea/devsam/core/pulls/223

hwe/sammo/API/Troop/ExitTroop.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace sammo\API\Troop;
+
+use sammo\Session;
+use DateTimeInterface;
+use sammo\DB;
+
+class ExitTroop extends \sammo\BaseAPI
+{
+  public function validateArgs(): ?string
+  {
+    return null;
+  }
+
+  public function getRequiredSessionMode(): int
+  {
+    return static::REQ_GAME_LOGIN;
+  }
+
+  public function launch(Session $session, ?DateTimeInterface $modifiedSince, ?string $reqEtag)
+  {
+    $generalID = $session->generalID;
+    $db = DB::db();
+
+    $troopID = $db->queryFirstField('SELECT troop FROM general WHERE no = %i', $generalID);
+    if($troopID == 0){
+      return '부대에 소속되어 있지 않습니다.';
+    }
+
+    if($generalID != $troopID){
+      $db->update('general', [
+        'troop' => 0,
+      ], '`no` = %i', $generalID);
+      return null;
+    }
+
+    //부대장이다.
+    $db->update('general', [
+      'troop' => 0,
+    ], '`troop` = %i', $troopID);
+    $db->delete('troop', 'troop_leader = %i', $troopID);
+
+    return null;
+  }
+}