fix: build metadata for scripts only when there are changes

3 files changed, 93 insertions, 62 deletions

diff --git a/.gitignore b/.gitignore
index 61cc25c..2476444 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
 config.php
 /vendor/
+scriptmetadata.json
+*.ini
\ No newline at end of file
diff --git a/lib/utils.php b/lib/utils.php
index 6de3dfb..639eed4 100644
--- a/lib/utils.php
+++ b/lib/utils.php
@@ -1,4 +1,7 @@
 <?php
+include_once $_SERVER['DOCUMENT_ROOT'] . '/../vendor/autoload.php';
+use Raudius\Luar\Luar;
+
 function format_timestamp($timestamp)
 {
     $days = (int) floor($timestamp / (60.0 * 60.0 * 24.0));
@@ -18,4 +21,70 @@ function format_timestamp($timestamp)
     } else {
         return "$years year" . ($years > 1 ? "s" : "");
     }
+}
+
+function parse_lua_script($value)
+{
+    if ($value instanceof \Raudius\Luar\Interpreter\LuarObject\Literal) {
+        return $value->getValue();
+    } else if ($value instanceof \Raudius\Luar\Interpreter\LuarObject\Table) {
+        return parse_lua_script($value->getValue());
+    }
+
+    if (is_array($value)) {
+        $out = [];
+        foreach ($value as $k => $v) {
+            if ($k == 'handle') {
+                continue;
+            }
+            $out[$k] = parse_lua_script($v);
+        }
+        return $out;
+    }
+
+    return $value;
+}
+
+function build_script_metadata(string $folder_path)
+{
+    $file_path = $_SERVER["DOCUMENT_ROOT"] . "/../scriptmetadata.json";
+    $should_create = is_dir($folder_path);
+    $files = glob("$folder_path/*.lua");
+
+    if (file_exists($file_path)) {
+        $file_last_change = filemtime($file_path);
+        $script_last_change = 0;
+        foreach ($files as $file) {
+            $l = filemtime($file);
+            if ($l > $script_last_change) {
+                $l = $script_last_change;
+            }
+        }
+        $should_create = $script_last_change > $file_last_change;
+    }
+
+    if ($should_create) {
+        $scripts = [];
+
+        $luar = new Luar();
+        $parsedown = new Parsedown();
+
+        foreach ($files as $file) {
+            $contents = file_get_contents($file);
+
+            $result = $luar->eval($contents);
+            $script = parse_lua_script($result);
+            if (!isset($script["description"])) {
+                $script["description"] = "_No description provided._";
+            }
+            $script['description_text'] = str_replace(PHP_EOL, ' ', $script['description']);
+            $script['description_formatted'] = $parsedown->text($script['description']);
+
+            array_push($scripts, $script);
+        }
+
+        file_put_contents($file_path, json_encode($scripts, JSON_UNESCAPED_SLASHES));
+    }
+
+    return true;
 }
\ No newline at end of file
diff --git a/public/scripts.php b/public/scripts.php
index 0f80be4..988b4bc 100644
--- a/public/scripts.php
+++ b/public/scripts.php
@@ -1,79 +1,39 @@
 <?php
 include_once $_SERVER['DOCUMENT_ROOT'] . '/../lib/partials.php';
 include_once $_SERVER['DOCUMENT_ROOT'] . '/../lib/utils.php';
-include_once $_SERVER['DOCUMENT_ROOT'] . '/../vendor/autoload.php';
 include_once $_SERVER['DOCUMENT_ROOT'] . '/../config.php';
 
-use Raudius\Luar\Luar;
-
-function parse_lua_script($value)
-{
-    if ($value instanceof \Raudius\Luar\Interpreter\LuarObject\Literal) {
-        return $value->getValue();
-    } else if ($value instanceof \Raudius\Luar\Interpreter\LuarObject\Table) {
-        return parse_lua_script($value->getValue());
-    }
-
-    if (is_array($value)) {
-        $out = [];
-        foreach ($value as $k => $v) {
-            if ($k == 'handle') {
-                continue;
-            }
-            $out[$k] = parse_lua_script($v);
-        }
-        return $out;
-    }
-
-    return $value;
-}
-
 if (empty(LUA_SCRIPT_DIRECTORY)) {
     http_response_code(403);
     exit;
 }
 
-$command = null;
-$scripts = [];
-
-// loading lua scripts
-$luar = new Luar();
-$parsedown = new Parsedown();
-$file_paths = glob(LUA_SCRIPT_DIRECTORY . '/*.lua');
-foreach ($file_paths as $file_path) {
-    $script = file_get_contents($file_path);
-
-    $result = $luar->eval($script);
-
-    $script = parse_lua_script($result);
-    $script['description_text'] = str_replace(PHP_EOL, ' ', $script['description']);
-
-    array_push($scripts, $script);
+if (!build_script_metadata(LUA_SCRIPT_DIRECTORY)) {
+    http_response_code(500);
+    exit("Failed to build a metadata for scripts.");
 }
 
+$script = null;
+$scripts = json_decode(file_get_contents($_SERVER["DOCUMENT_ROOT"] . '/../scriptmetadata.json'), true);
+
 if ($cmd_id = $_GET['id'] ?? false) {
-    $command = array_find(
+    $script = array_find(
         $scripts,
         fn($x) =>
         $x['name'] == $cmd_id || (isset($x['aliases']) ? in_array($cmd_id, $x['aliases']) : false)
     );
 
-    if (!$command) {
+    if (!$script) {
         http_response_code(404);
         exit;
     }
 }
 
-if ($command) {
-    if (isset($command['description'])) {
-        $command['description_formatted'] = $parsedown->text($command['description']);
-    }
-}
 ?>
 <html>
 
 <head>
-    <title><?= isset($command) ? "!{$command['name']} - Script" : 'Scripts' ?> - <?= BOT_USERNAME_FORMATTED ?></title>
+    <title><?= isset($script) ? "!{$script['name']} - Script" : 'Scripts' ?> - <?= BOT_USERNAME_FORMATTED ?></title>
     <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
     <link rel="stylesheet" href="/static/style.css">
     <link rel="shortcut icon" href="/static/favicon.ico" type="image/x-icon">
@@ -91,9 +51,9 @@ if ($command) {
                 <?php if (!empty($scripts)): ?>
                     <!-- SIDE BAR -->
                     <div class="wiki-sidebar">
-                        <?php foreach ($scripts as $script): ?>
-                            <p><a href="/!<?= $script['name'] ?>"
-                                    title="<?= substr($script['description_text'] ?? '', 0, 64) . (strlen($script['description_text']) > 64 ? '...' : '') ?>"><?= $script['name'] ?></a>
+                        <?php foreach ($scripts as $s): ?>
+                            <p><a href="/!<?= $s['name'] ?>"
+                                    title="<?= substr($s['description_text'] ?? '', 0, 64) . (strlen($s['description_text']) > 64 ? '...' : '') ?>"><?= $s['name'] ?></a>
                             </p>
                         <?php endforeach; ?>
                     </div>
@@ -101,38 +61,38 @@ if ($command) {
 
                 <!-- WIKI CONTENT -->
                 <div class="wiki-content">
-                    <?php if (isset($command)): ?>
-                        <h1>&excl;<?= $command['name'] ?><a href="/!/<?= $command['name'] ?>.lua"><img
+                    <?php if (isset($script)): ?>
+                        <h1>&excl;<?= $script['name'] ?><a href="/!/<?= $script['name'] ?>.lua"><img
                                     src="/static/img/icons/code.png" alt="[code]" title="Check the source code"></a></h1>
                         <table class="vertical">
                             <tr>
                                 <th>Delay</th>
-                                <td><?= format_timestamp($command['delay_sec']) ?></td>
+                                <td><?= format_timestamp($script['delay_sec']) ?></td>
                             </tr>
-                            <?php if (!empty($command['subcommands'])): ?>
+                            <?php if (!empty($script['subcommands'])): ?>
                                 <tr>
                                     <th>Subcommands</th>
                                     <td>
-                                        <?= implode(', ', array_map(fn($x) => "<code>$x</code>", $command['subcommand'])) ?>
+                                        <?= implode(', ', array_map(fn($x) => "<code>$x</code>", $script['subcommands'])) ?>
                                     </td>
                                 </tr>
                             <?php endif; ?>
-                            <?php if (!empty($command['aliases'])): ?>
+                            <?php if (!empty($script['aliases'])): ?>
                                 <tr>
                                     <th>Aliases</th>
                                     <td>
-                                        <?= implode(', ', array_map(fn($x) => "<code>$x</code>", $command['aliases'])) ?>
+                                        <?= implode(', ', array_map(fn($x) => "<code>$x</code>", $script['aliases'])) ?>
                                     </td>
                                 </tr>
                             <?php endif; ?>
                             <tr>
                                 <th>Minimal rights</th>
-                                <td><?= $command['minimal_rights'] ?></td>
+                                <td><?= $script['minimal_rights'] ?></td>
                             </tr>
                         </table>
                         <div>
-                            <?php if (isset($command['description_formatted'])): ?>
-                                <?= $command['description_formatted'] ?>
+                            <?php if (isset($script['description_formatted'])): ?>
+                                <?= $script['description_formatted'] ?>
                             <?php else: ?>
                                 <p><i>No description.</i></p>
                             <?php endif; ?>