implemented a lot of features

database/migrations/1768620764950_name_stem_split_volumes.ts

@@ -0,0 +1,21 @@
+import { BaseSchema } from '@adonisjs/lucid/schema'
+
+/**
+ * name_stem(): strip a 3-digit split suffix only after a file extension
+ * (x.mkv.001), not codec names like H.264 / H.265, matching lib/release.
+ */
+export default class extends BaseSchema {
+  async up() {
+    this.defer(async (db) => {
+      await db.rawQuery(`
+        CREATE OR REPLACE FUNCTION name_stem(name text) RETURNS text IMMUTABLE LANGUAGE sql AS $$
+          SELECT regexp_replace(
+            regexp_replace(name, '(\\.(7z|zip|rar|tar|mkv|mp4|avi|m4v|ts|m2ts|iso|img|bin|vob))\\.\\d{3}$', '\\1', 'i'),
+            '(\\.(part\\d+\\.rar|r\\d{2,3}|rar|vol\\d+[+-]\\d+\\.par2|par2|7z|zip|nfo|sfv|nzb|tar|zst|gz|xz|mkv|mp4|avi|m4v|ts|iso|img|flac|mp3|epub|pdf|jpg|png|srt|sub|idx|ass|ssa))+$',
+            '', 'i')
+        $$`)
+    })
+  }
+
+  async down() {}
+}