Store tag categories in library metadata, unsave from bookmarks

- tag_categories stored as JSON in library_meta table
- Library and Bookmarks info panels show categorized tags
- Bookmarks falls back to library_meta for categories
- Added Unsave from Library to bookmarks right-click menu

booru_viewer/core/db.py

@@ -62,6 +62,7 @@ CREATE TABLE IF NOT EXISTS blacklisted_posts (
 CREATE TABLE IF NOT EXISTS library_meta (
     post_id        INTEGER PRIMARY KEY,
     tags           TEXT NOT NULL DEFAULT '',
+    tag_categories TEXT DEFAULT '',
     score          INTEGER DEFAULT 0,
     rating         TEXT,
     source         TEXT,
@@ -451,19 +452,30 @@ class Database:
 
     # -- Library Metadata --
 
-    def save_library_meta(self, post_id: int, tags: str = "", score: int = 0,
-                          rating: str = None, source: str = None, file_url: str = None) -> None:
+    def save_library_meta(self, post_id: int, tags: str = "", tag_categories: dict = None,
+                          score: int = 0, rating: str = None, source: str = None,
+                          file_url: str = None) -> None:
+        import json
         from datetime import datetime, timezone
+        cats_json = json.dumps(tag_categories) if tag_categories else ""
         self.conn.execute(
-            "INSERT OR REPLACE INTO library_meta (post_id, tags, score, rating, source, file_url, saved_at) "
-            "VALUES (?, ?, ?, ?, ?, ?, ?)",
-            (post_id, tags, score, rating, source, file_url, datetime.now(timezone.utc).isoformat()),
+            "INSERT OR REPLACE INTO library_meta "
+            "(post_id, tags, tag_categories, score, rating, source, file_url, saved_at) "
+            "VALUES (?, ?, ?, ?, ?, ?, ?, ?)",
+            (post_id, tags, cats_json, score, rating, source, file_url,
+             datetime.now(timezone.utc).isoformat()),
         )
         self.conn.commit()
 
     def get_library_meta(self, post_id: int) -> dict | None:
+        import json
         row = self.conn.execute("SELECT * FROM library_meta WHERE post_id = ?", (post_id,)).fetchone()
-        return dict(row) if row else None
+        if not row:
+            return None
+        d = dict(row)
+        cats = d.get("tag_categories", "")
+        d["tag_categories"] = json.loads(cats) if cats else {}
+        return d
 
     def search_library_meta(self, query: str) -> set[int]:
         """Search library metadata by tags. Returns matching post IDs."""

booru_viewer/gui/app.py

@@ -1127,7 +1127,7 @@ class BooruApp(QMainWindow):
                     id=int(stem), file_url=meta.get("file_url", ""),
                     preview_url=None, tags=meta.get("tags", ""),
                     score=meta.get("score", 0), rating=meta.get("rating"),
-                    source=meta.get("source"), tag_categories={},
+                    source=meta.get("source"), tag_categories=meta.get("tag_categories", {}),
                 )
                 self._info_panel.set_post(p)
 
@@ -1143,7 +1143,7 @@ class BooruApp(QMainWindow):
                     id=int(stem), file_url=meta.get("file_url", ""),
                     preview_url=None, tags=meta.get("tags", ""),
                     score=meta.get("score", 0), rating=meta.get("rating"),
-                    source=meta.get("source"), tag_categories={},
+                    source=meta.get("source"), tag_categories=meta.get("tag_categories", {}),
                 )
                 self._info_panel.set_post(p)
 
@@ -1152,11 +1152,14 @@ class BooruApp(QMainWindow):
         # Show bookmark tags in info panel
         if self._info_panel.isVisible():
             from ..core.api.base import Post
+            # Try library metadata for categories
+            meta = self._db.get_library_meta(fav.post_id)
+            cats = meta.get("tag_categories", {}) if meta else {}
             p = Post(
                 id=fav.post_id, file_url=fav.file_url or "",
                 preview_url=fav.preview_url, tags=fav.tags or "",
                 score=fav.score or 0, rating=fav.rating,
-                source=fav.source, tag_categories={},
+                source=fav.source, tag_categories=cats,
             )
             self._info_panel.set_post(p)
         self._on_bookmark_activated(fav)
@@ -1818,8 +1821,10 @@ class BooruApp(QMainWindow):
 
                 # Store metadata for library search
                 self._db.save_library_meta(
-                    post_id=post.id, tags=post.tags, score=post.score,
-                    rating=post.rating, source=post.source, file_url=post.file_url,
+                    post_id=post.id, tags=post.tags,
+                    tag_categories=post.tag_categories,
+                    score=post.score, rating=post.rating,
+                    source=post.source, file_url=post.file_url,
                 )
 
                 where = folder or "Unsorted"

booru_viewer/gui/bookmarks.py

@@ -230,6 +230,7 @@ class BookmarksView(QWidget):
         save_lib_menu.addSeparator()
         save_lib_new = save_lib_menu.addAction("+ New Folder...")
 
+        unsave_lib = menu.addAction("Unsave from Library")
         copy_file = menu.addAction("Copy File to Clipboard")
         copy_url = menu.addAction("Copy Image URL")
         copy_tags = menu.addAction("Copy Tags")
@@ -277,6 +278,10 @@ class BookmarksView(QWidget):
                 if dest:
                     import shutil
                     shutil.copy2(src, dest)
+        elif action == unsave_lib:
+            from ..core.cache import delete_from_library
+            if delete_from_library(fav.post_id, fav.folder):
+                self.refresh()
         elif action == copy_file:
             path = fav.cached_path
             if path and Path(path).exists():