Fix Duplicates (#199)

* Fix Duplicates

* Version

src/migrator/migrations/014_file_subtitle_infohash_fileidx_index.sql

@@ -0,0 +1,43 @@
+-- Drop Duplicate Files in Files Table
+DELETE FROM public.files
+WHERE id NOT IN (
+    SELECT MAX(id)
+    FROM public.files
+    GROUP BY "infoHash", "fileIndex"
+);
+
+-- Add Index to files table
+DO $$
+BEGIN
+    IF NOT EXISTS (
+        SELECT 1
+        FROM pg_constraint
+        WHERE conname = 'files_unique_infohash_fileindex'
+    ) THEN
+        ALTER TABLE public.files
+            ADD CONSTRAINT files_unique_infohash_fileindex UNIQUE ("infoHash", "fileIndex");
+    END IF;
+END $$;
+
+
+-- Drop Duplicate subtitles in Subtitles Table
+DELETE FROM public.subtitles
+WHERE id NOT IN (
+    SELECT MAX(id)
+    FROM public.subtitles
+    GROUP BY "infoHash", "fileIndex"
+);
+
+-- Add Index to subtitles table
+DO $$
+    BEGIN
+        IF NOT EXISTS (
+            SELECT 1
+            FROM pg_constraint
+            WHERE conname = 'subtitles_unique_infohash_fileindex'
+        ) THEN
+            ALTER TABLE public.subtitles
+                ADD CONSTRAINT subtitles_unique_infohash_fileindex UNIQUE ("infoHash", "fileIndex");
+        END IF;
+    END $$;
+