feat: import luogu problem using cli

INSTALLATION.md

@@ -2,7 +2,16 @@
 
 ## 前期准备
 
-请先在服务器上安装 Node.js 18 LTS 和 `php-curl`。
+请先在服务器上安装以下软件/模块：
+
+- Node.js 18 LTS
+- php-curl
+
+然后为 php-cli 启用 php-v8js 和 php-yaml 扩展：
+
+```bash
+sed -i -e '912a\extension=v8js.so\nextension=yaml.so' /etc/php/7.4/cli/php.ini
+```
 
 ## 修改源码
 

web/app/cli.php

@@ -0,0 +1,129 @@
+<?php
+
+$_SERVER['DOCUMENT_ROOT'] = dirname(__DIR__);
+
+require $_SERVER['DOCUMENT_ROOT'] . '/app/libs/uoj-lib.php';
+
+requirePHPLib('luogu');
+requirePHPLib('data');
+
+// TODO: more beautiful argv parser
+
+$handlers = [
+	'upgrade:up' => function ($name) {
+		if (func_num_args() != 1) {
+			die("php cli.php upgrade:up <name>\n");
+		}
+		Upgrader::transaction(function() use ($name) {
+			Upgrader::up($name);
+		});
+		die("finished!\n");
+	},
+	'upgrade:down' => function ($name) {
+		if (func_num_args() != 1) {
+			die("php cli.php upgrade:down <name>\n");
+		}
+		Upgrader::transaction(function() use ($name) {
+			Upgrader::down($name);
+		});
+		die("finished!\n");
+	},
+	'upgrade:refresh' => function ($name) {
+		if (func_num_args() != 1) {
+			die("php cli.php upgrade:refresh <name>\n");
+		}
+		Upgrader::transaction(function() use ($name) {
+			Upgrader::refresh($name);
+		});
+		die("finished!\n");
+	},
+	'upgrade:remove' => function ($name) {
+		if (func_num_args() != 1) {
+			die("php cli.php upgrade:remove <name>\n");
+		}
+		Upgrader::transaction(function() use ($name) {
+			Upgrader::remove($name);
+		});
+		die("finished!\n");
+	},
+	'upgrade:latest' => function () {
+		if (func_num_args() != 0) {
+			die("php cli.php upgrade:latest\n");
+		}
+		Upgrader::transaction(function() {
+			Upgrader::upgradeToLatest();
+		});
+		die("finished!\n");
+	},
+	'upgrade:remove-all' => function () {
+		if (func_num_args() != 0) {
+			die("php cli.php upgrade:remove-all\n");
+		}
+		Upgrader::transaction(function() {
+			Upgrader::removeAll();
+		});
+		die("finished!\n");
+	},
+	'luogu:add-problem' => function () use ($argv) {
+		$rest_index = null;
+		$opts = getopt('', ['file::'], $rest_index);
+
+		if (!isset($opts['file'])) {
+			echo "No database file specified, fetching online instead.\n\n";
+		}
+
+		// TODO: read database from local file
+
+		$problems = array_slice($argv, $rest_index);
+		$problems = array_filter($problems, 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 {
+				$id = newLuoguRemoteProblem($pid);
+
+				echo "$pid: $id\n";
+			} catch (Exception $e) {
+				echo "$pid: failed\n";
+			}
+		}
+	},
+	'help' => 'showHelp',
+];
+
+function showHelp() {
+	global $handlers;
+	echo "UOJ Command-Line Interface\n";
+	echo "php cli.php <task-name> params1 params2 ...\n";
+	echo "\n";
+	echo "The following tasks are available:\n";
+	foreach ($handlers as $cmd => $handler) {
+		echo "\t$cmd\n";
+	}
+}
+
+if (count($argv) <= 1) {
+	showHelp();
+	die();
+}
+
+if (!isset($handlers[$argv[1]])) {
+	echo "Invalid parameters.\n";
+	showHelp();
+	die();
+}
+
+call_user_func_array($handlers[$argv[1]], array_slice($argv, 2));

web/app/cli.php.patch

@@ -0,0 +1,58 @@
+--- UOJ-System/web/app/cli.php	2022-12-30 09:54:05.452022649 +0800
++++ UOJ-Luogu-RemoteJudge/web/app/cli.php	2023-03-20 16:47:12.734169684 +0800
+@@ -4,6 +4,9 @@
+ 
+ require $_SERVER['DOCUMENT_ROOT'] . '/app/libs/uoj-lib.php';
+ 
++requirePHPLib('luogu');
++requirePHPLib('data');
++
+ // TODO: more beautiful argv parser
+ 
+ $handlers = [
+@@ -61,7 +64,44 @@
+ 		});
+ 		die("finished!\n");
+ 	},
+-	'help' => 'showHelp'
++	'luogu:add-problem' => function () use ($argv) {
++		$rest_index = null;
++		$opts = getopt('', ['file::'], $rest_index);
++
++		if (!isset($opts['file'])) {
++			echo "No database file specified, fetching online instead.\n\n";
++		}
++
++		// TODO: read database from local file
++
++		$problems = array_slice($argv, $rest_index);
++		$problems = array_filter($problems, 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 {
++				$id = newLuoguRemoteProblem($pid);
++
++				echo "$pid: $id\n";
++			} catch (Exception $e) {
++				echo "$pid: failed\n";
++			}
++		}
++	},
++	'help' => 'showHelp',
+ ];
+ 
+ function showHelp() {

web/app/libs/uoj-luogu-lib.php

@@ -47,6 +47,7 @@ function parseLuoguProblemData($problem) {
     $statement .= $problem['hint'] . "\n";
 
     return [
+        'pid' => $problem['pid'],
         'title' => "【洛谷 {$problem['pid']}】{$problem['title']}",
         'time_limit' => (float)max($problem['limits']['time']) / 1000.0,
         'memory_limit' => (float)max($problem['limits']['memory']) / 1024.0,
@@ -90,7 +91,7 @@ function newLuoguRemoteProblem($pid) {
         ),
     ));
     $esc_extra_config = json_encode(array(
-        "luogu_pid" => $pid,
+        "luogu_pid" => $problem['pid'],
         "time_limit" => $problem['time_limit'],
         "memory_limit" => $problem['memory_limit'],
         "view_content_type" => "ALL",