Unlinking

js/page-link.js

@@ -41,22 +41,26 @@
     return '/';
   }
 
-  function ensurePageLink() {
+  function requestPageLink(cmd, params) {
     var pageId = getPageId();
     if (!pageId) return false;
 
     var endpoint = getBaseUrl() + 'lib/plugins/luxtools/pagelink.php';
 
-    var params = new window.URLSearchParams();
-    params.set('cmd', 'ensure');
-    params.set('id', pageId);
-    params.set('sectok', getSectok());
+    var payload = new window.URLSearchParams();
+    payload.set('cmd', cmd);
+    payload.set('id', pageId);
+    if (params && typeof params === 'object') {
+      Object.keys(params).forEach(function (key) {
+        payload.set(key, String(params[key]));
+      });
+    }
 
     window.fetch(endpoint, {
       method: 'POST',
       credentials: 'same-origin',
       headers: { 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8' },
-      body: params.toString()
+      body: payload.toString()
     }).then(function (res) {
       return res.json().catch(function () { return null; }).then(function (body) {
         if (!res.ok || !body || body.ok !== true) {
@@ -66,13 +70,25 @@
       });
     }).catch(function (err) {
       if (window.console && window.console.warn) {
-        window.console.warn('PageLink creation failed:', err);
+        window.console.warn('PageLink request failed:', err);
       }
     });
 
     return false;
   }
 
+  function fetchInfo() {
+    return requestPageLink('info', {});
+  }
+
+  function ensurePageLink() {
+    return requestPageLink('ensure', { sectok: getSectok() });
+  }
+
+  function unlinkPageLink() {
+    return requestPageLink('unlink', { sectok: getSectok() });
+  }
+
   function copyToClipboard(text) {
     if (!text) return;
     if (window.navigator && window.navigator.clipboard && window.navigator.clipboard.writeText) {
@@ -126,7 +142,37 @@
 
   window.addBtnActionLuxtoolsPageLink = function ($btn, props, edid) {
     $btn.on('click', function () {
-      ensurePageLink();
+      var pageId = getPageId();
+      if (!pageId) return false;
+
+      var endpoint = getBaseUrl() + 'lib/plugins/luxtools/pagelink.php';
+      var query = endpoint + '?cmd=info&id=' + encodeURIComponent(pageId);
+
+      window.fetch(query, {
+        method: 'GET',
+        credentials: 'same-origin'
+      }).then(function (res) {
+        return res.json().catch(function () { return null; }).then(function (body) {
+          if (!res.ok || !body || body.ok !== true) {
+            throw new Error('request failed');
+          }
+          return body;
+        });
+      }).then(function (info) {
+        if (info && info.uuid) {
+          if (window.confirm('Unlink page?')) {
+            unlinkPageLink();
+          }
+          return;
+        }
+
+        ensurePageLink();
+      }).catch(function (err) {
+        if (window.console && window.console.warn) {
+          window.console.warn('PageLink info failed:', err);
+        }
+        ensurePageLink();
+      });
       return false;
     });
     return 'luxtools-pagelink';

pagelink.php

@@ -54,6 +54,35 @@ if (auth_quickaclcheck($pageId) < AUTH_EDIT) {
     luxtools_pagelink_json(403, ['ok' => false, 'error' => 'forbidden']);
 }
 
+if ($cmd === 'info') {
+    $depth = (int)$syntax->getConf('pagelink_search_depth');
+    if ($depth < 0) $depth = 0;
+
+    $pageLink = new PageLink((string)$syntax->getConf('paths'), $depth);
+    $uuid = $pageLink->getPageUuid($pageId);
+    if ($uuid === null) {
+        luxtools_pagelink_json(200, [
+            'ok' => true,
+            'uuid' => null,
+            'linked' => false,
+            'folder' => null,
+            'multiple' => false,
+        ]);
+    }
+
+    $info = $pageLink->resolveUuid($uuid);
+    $folder = $info['folder'] ?? null;
+    $multiple = !empty($info['multiple']);
+
+    luxtools_pagelink_json(200, [
+        'ok' => true,
+        'uuid' => $uuid,
+        'linked' => is_string($folder) && $folder !== '',
+        'folder' => is_string($folder) ? $folder : null,
+        'multiple' => $multiple,
+    ]);
+}
+
 if ($cmd === 'ensure') {
     if (strtoupper($_SERVER['REQUEST_METHOD'] ?? '') !== 'POST') {
         luxtools_pagelink_json(405, ['ok' => false, 'error' => 'method not allowed']);
@@ -83,4 +112,26 @@ if ($cmd === 'ensure') {
     luxtools_pagelink_json(200, ['ok' => true, 'uuid' => $uuid, 'created' => true]);
 }
 
+if ($cmd === 'unlink') {
+    if (strtoupper($_SERVER['REQUEST_METHOD'] ?? '') !== 'POST') {
+        luxtools_pagelink_json(405, ['ok' => false, 'error' => 'method not allowed']);
+    }
+
+    if (!checkSecurityToken()) {
+        luxtools_pagelink_json(403, ['ok' => false, 'error' => 'bad token']);
+    }
+
+    $depth = (int)$syntax->getConf('pagelink_search_depth');
+    if ($depth < 0) $depth = 0;
+
+    $pageLink = new PageLink((string)$syntax->getConf('paths'), $depth);
+    $result = $pageLink->unlinkPage($pageId);
+
+    luxtools_pagelink_json(200, [
+        'ok' => true,
+        'uuid' => $result['uuid'] ?? null,
+        'folder' => $result['folder'] ?? null,
+    ]);
+}
+
 luxtools_pagelink_json(400, ['ok' => false, 'error' => 'unknown command']);

src/PageLink.php

@@ -87,6 +87,46 @@ class PageLink
         return (bool)p_set_metadata($pageId, [self::META_KEY => $uuid]);
     }
 
+    /**
+     * Remove the pagelink UUID from page metadata.
+     */
+    public function removePageUuid(string $pageId): bool
+    {
+        if ($pageId === '') return false;
+        if (!function_exists('p_set_metadata')) return false;
+
+        return (bool)p_set_metadata($pageId, [self::META_KEY => '']);
+    }
+
+    /**
+     * Unlink a page: remove UUID, delete linked .pagelink file if present, and clear cache.
+     *
+     * @param string $pageId
+     * @return array{ok: bool, uuid: string|null, folder: string|null}
+     */
+    public function unlinkPage(string $pageId): array
+    {
+        $uuid = $this->getPageUuid($pageId);
+        if ($uuid === null) {
+            return ['ok' => true, 'uuid' => null, 'folder' => null];
+        }
+
+        $linkInfo = $this->resolveUuid($uuid);
+        $folder = $linkInfo['folder'] ?? null;
+
+        if (is_string($folder) && $folder !== '') {
+            $file = rtrim($folder, '/\\') . '/.pagelink';
+            if (is_file($file) && !is_link($file)) {
+                @unlink($file);
+            }
+        }
+
+        $this->removeCacheEntry($uuid);
+        $this->removePageUuid($pageId);
+
+        return ['ok' => true, 'uuid' => $uuid, 'folder' => is_string($folder) ? $folder : null];
+    }
+
     /**
      * Resolve a pagelink UUID to a linked folder (if any).
      *
@@ -177,6 +217,21 @@ class PageLink
         $this->cacheDirty = false;
     }
 
+    /**
+     * Remove a specific UUID from cache.
+     */
+    public function removeCacheEntry(string $uuid): void
+    {
+        $uuid = self::normalizeUuid($uuid);
+        if ($uuid === null) return;
+
+        $cache = $this->loadCache();
+        if (!isset($cache[$uuid])) return;
+
+        unset($cache[$uuid]);
+        $this->writeCache($cache);
+    }
+
     /**
      * Get cache file path for pagelink mappings.
      */