--- UOJ-System/web/app/cli.php	2022-12-30 09:54:05.452022649 +0800
+++ UOJ-Luogu-RemoteJudge/web/app/cli.php	2023-03-29 19:17:31.611110921 +0800
@@ -4,7 +4,21 @@
 
 require $_SERVER['DOCUMENT_ROOT'] . '/app/libs/uoj-lib.php';
 
+error_reporting(E_ALL ^ E_NOTICE ^ E_DEPRECATED);
+
+requirePHPLib('luogu');
+requirePHPLib('data');
+
 // TODO: more beautiful argv parser
+$my_args = array();
+
+for ($i = 1; $i < count($argv); $i++) {
+    if (preg_match('/^--([^=]+)[=](.*)/', $argv[$i], $match)) {
+        $my_args[$match[1]] = $match[2];
+    } else if (preg_match('/^--(.*)/', $argv[$i], $match)) {
+        $my_args[$match[1]] = $argv[++$i];
+    }
+}
 
 $handlers = [
 	'upgrade:up' => function ($name) {
@@ -61,7 +75,67 @@
 		});
 		die("finished!\n");
 	},
-	'help' => 'showHelp'
+	'luogu:add-problem' => function () use ($argv, $my_args) {
+		DB::init();
+
+		$db = array();
+
+		if (!isset($my_args['file'])) {
+			echo "No database file specified, fetching online instead.\n\n";
+		} else {
+			echo "Reading local database: {$my_args['file']}\n\n";
+
+			$file = file_get_contents($my_args['file']);
+
+			foreach (explode("\n", $file) as $line) {
+				if (strlen($line) == 0) continue;
+
+				$line_data = json_decode($line, true);
+				$db[$line_data['pid']] = $line_data;
+			}
+
+			$db_count = count($db);
+			echo "Loaded {$db_count} items.\n\n";
+		}
+
+		// TODO: read database from local file
+
+		$problems = array_filter($argv, function ($id) {
+			if (!validateLuoguProblemId($id)) return false;
+
+			return true;
+		});
+
+		if (empty($problems)) {
+			echo "No problems to be added.\n";
+
+			return;
+		}
+
+		echo "Problems to be added: " . implode(', ', $problems) . "\n\n";
+
+		readline("Press Enter to continue, or Ctrl+C to abort.");
+
+		foreach ($problems as $pid) {
+			try {
+				if (!isset($db[$pid])) {
+					if (!empty($db)) {
+						echo "[WARN] $pid: fallback to fetch data online\n";
+					}
+
+					$id = newLuoguRemoteProblem($pid);
+				} else {
+					$parsed = parseLuoguProblemData($db[$pid]);
+					$id = newLuoguRemoteProblemFromData($parsed);
+				}
+
+				echo "$pid: $id\n";
+			} catch (Exception $e) {
+				echo "$pid: failed\n";
+			}
+		}
+	},
+	'help' => 'showHelp',
 ];
 
 function showHelp() {