core: filter all messages with links in text when link content filter is used (#6591)

* core: change msg_content_tag stored as blob to text

* track if items have links and use has_link when searching for links (MCLink_ MsgContentTag is passed)

* fix test (broken in master)

* merge migrations, update api and schema

* minor fixes

* tests

* update plans

* update migrations

src/Simplex/Chat/Store/Postgres/Migrations/M20260122_has_link.hs

@@ -0,0 +1,32 @@
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE QuasiQuotes #-}
+
+module Simplex.Chat.Store.Postgres.Migrations.M20260122_has_link where
+
+import Data.Text (Text)
+import Text.RawString.QQ (r)
+
+m20260122_has_link :: Text
+m20260122_has_link =
+  [r|
+ALTER TABLE chat_items ADD COLUMN has_link SMALLINT NOT NULL DEFAULT 0;
+
+UPDATE chat_items SET msg_content_tag = 'text' WHERE msg_content_tag = 'liveText';
+
+UPDATE chat_items SET has_link = 1
+WHERE msg_content_tag = 'link' OR item_text LIKE '%https://%';
+
+CREATE INDEX idx_chat_items_groups_has_link_item_ts ON chat_items(user_id, group_id, has_link, item_ts);
+CREATE INDEX idx_chat_items_contacts_has_link_created_at ON chat_items(user_id, contact_id, has_link, created_at);
+CREATE INDEX idx_chat_items_note_folder_has_link_created_at ON chat_items(user_id, note_folder_id, has_link, created_at);
+|]
+
+down_m20260122_has_link :: Text
+down_m20260122_has_link =
+  [r|
+DROP INDEX idx_chat_items_note_folder_has_link_created_at;
+DROP INDEX idx_chat_items_contacts_has_link_created_at;
+DROP INDEX idx_chat_items_groups_has_link_item_ts;
+
+ALTER TABLE chat_items DROP COLUMN has_link;
+|]

src/Simplex/Chat/Store/Postgres/Migrations/chat_schema.sql

@@ -342,7 +342,8 @@ CREATE TABLE test_chat_schema.chat_items (
     user_mention smallint DEFAULT 0 NOT NULL,
     group_scope_tag text,
     group_scope_group_member_id bigint,
-    show_group_as_sender smallint DEFAULT 0 NOT NULL
+    show_group_as_sender smallint DEFAULT 0 NOT NULL,
+    has_link smallint DEFAULT 0 NOT NULL
 );
 
 
@@ -1813,6 +1814,10 @@ CREATE INDEX idx_chat_items_contacts_created_at ON test_chat_schema.chat_items U
 
 
 
+CREATE INDEX idx_chat_items_contacts_has_link_created_at ON test_chat_schema.chat_items USING btree (user_id, contact_id, has_link, created_at);
+
+
+
 CREATE INDEX idx_chat_items_contacts_msg_content_tag_created_at ON test_chat_schema.chat_items USING btree (user_id, contact_id, msg_content_tag, created_at);
 
 
@@ -1873,6 +1878,10 @@ CREATE INDEX idx_chat_items_groups ON test_chat_schema.chat_items USING btree (u
 
 
 
+CREATE INDEX idx_chat_items_groups_has_link_item_ts ON test_chat_schema.chat_items USING btree (user_id, group_id, has_link, item_ts);
+
+
+
 CREATE INDEX idx_chat_items_groups_history ON test_chat_schema.chat_items USING btree (user_id, group_id, include_in_history, item_deleted, item_ts, chat_item_id);
 
 
@@ -1901,6 +1910,10 @@ CREATE INDEX idx_chat_items_item_status ON test_chat_schema.chat_items USING btr
 
 
 
+CREATE INDEX idx_chat_items_note_folder_has_link_created_at ON test_chat_schema.chat_items USING btree (user_id, note_folder_id, has_link, created_at);
+
+
+
 CREATE INDEX idx_chat_items_note_folder_msg_content_tag_created_at ON test_chat_schema.chat_items USING btree (user_id, note_folder_id, msg_content_tag, created_at);