core: api to differentiate contacts and conversations (#4111)

src/Simplex/Chat/Migrations/M20240501_chat_deleted.hs

@@ -0,0 +1,18 @@
+{-# LANGUAGE QuasiQuotes #-}
+
+module Simplex.Chat.Migrations.M20240501_chat_deleted where
+
+import Database.SQLite.Simple (Query)
+import Database.SQLite.Simple.QQ (sql)
+
+m20240501_chat_deleted :: Query
+m20240501_chat_deleted =
+  [sql|
+ALTER TABLE contacts ADD COLUMN chat_deleted INTEGER NOT NULL DEFAULT 0;
+|]
+
+down_m20240501_chat_deleted :: Query
+down_m20240501_chat_deleted =
+  [sql|
+ALTER TABLE contacts DROP COLUMN chat_deleted;
+|]

src/Simplex/Chat/Migrations/chat_schema.sql

@@ -76,6 +76,7 @@ CREATE TABLE contacts(
   contact_status TEXT NOT NULL DEFAULT 'active',
   custom_data BLOB,
   ui_themes TEXT,
+  chat_deleted INTEGER NOT NULL DEFAULT 0,
   FOREIGN KEY(user_id, local_display_name)
   REFERENCES display_names(user_id, local_display_name)
   ON DELETE CASCADE