core: short link connection plans wip; short links implementation comments (#5947)

src/Simplex/Chat/Store/SQLite/Migrations.hs

@@ -131,6 +131,7 @@ import Simplex.Chat.Store.SQLite.Migrations.M20250130_indexes
 import Simplex.Chat.Store.SQLite.Migrations.M20250402_short_links
 import Simplex.Chat.Store.SQLite.Migrations.M20250512_member_admission
 import Simplex.Chat.Store.SQLite.Migrations.M20250513_group_scope
+import Simplex.Chat.Store.SQLite.Migrations.M20250526_short_links
 import Simplex.Messaging.Agent.Store.Shared (Migration (..))
 
 schemaMigrations :: [(String, Query, Maybe Query)]
@@ -261,7 +262,8 @@ schemaMigrations =
     ("20250130_indexes", m20250130_indexes, Just down_m20250130_indexes),
     ("20250402_short_links", m20250402_short_links, Just down_m20250402_short_links),
     ("20250512_member_admission", m20250512_member_admission, Just down_m20250512_member_admission),
-    ("20250513_group_scope", m20250513_group_scope, Just down_m20250513_group_scope)
+    ("20250513_group_scope", m20250513_group_scope, Just down_m20250513_group_scope),
+    ("20250526_short_links", m20250526_short_links, Just down_m20250526_short_links)
   ]
 
 -- | The list of migrations in ascending order by date

src/Simplex/Chat/Store/SQLite/Migrations/M20250526_short_links.hs

@@ -0,0 +1,23 @@
+{-# LANGUAGE QuasiQuotes #-}
+
+module Simplex.Chat.Store.SQLite.Migrations.M20250526_short_links where
+
+import Database.SQLite.Simple (Query)
+import Database.SQLite.Simple.QQ (sql)
+
+-- TODO [short links] contacts with contact requests
+-- TODO  - contacts.is_contact_request flag?
+-- TODO  - link contact_requests and contacts?
+m20250526_short_links :: Query
+m20250526_short_links =
+  [sql|
+ALTER TABLE contacts ADD COLUMN conn_req_to_connect BLOB;
+ALTER TABLE groups ADD COLUMN conn_req_to_connect BLOB;
+|]
+
+down_m20250526_short_links :: Query
+down_m20250526_short_links =
+  [sql|
+ALTER TABLE contacts DROP COLUMN conn_req_to_connect;
+ALTER TABLE groups DROP COLUMN conn_req_to_connect;
+|]

src/Simplex/Chat/Store/SQLite/Migrations/chat_query_plans.txt

@@ -54,7 +54,8 @@ Query:
                   -- GroupInfo
                   g.group_id, g.local_display_name, gp.display_name, gp.full_name, g.local_alias, gp.description, gp.image,
                   g.enable_ntfs, g.send_rcpts, g.favorite, gp.preferences, gp.member_admission,
-                  g.created_at, g.updated_at, g.chat_ts, g.user_member_profile_sent_at, g.business_chat, g.business_member_id, g.customer_member_id,
+                  g.created_at, g.updated_at, g.chat_ts, g.user_member_profile_sent_at, g.conn_req_to_connect,
+                  g.business_chat, g.business_member_id, g.customer_member_id,
                   g.ui_themes, g.custom_data, g.chat_item_ttl, g.members_require_attention,
                   -- GroupInfo {membership}
                   mu.group_member_id, mu.group_id, mu.member_id, mu.peer_chat_min_version, mu.peer_chat_max_version, mu.member_role, mu.member_category,
@@ -179,7 +180,8 @@ Query:
               SELECT
                 -- Contact
                 ct.contact_id, ct.contact_profile_id, ct.local_display_name, ct.via_group, cp.display_name, cp.full_name, cp.image, cp.contact_link, cp.local_alias, ct.contact_used, ct.contact_status, ct.enable_ntfs, ct.send_rcpts, ct.favorite,
-                cp.preferences, ct.user_preferences, ct.created_at, ct.updated_at, ct.chat_ts, ct.contact_group_member_id, ct.contact_grp_inv_sent, ct.ui_themes, ct.chat_deleted, ct.custom_data, ct.chat_item_ttl,
+                cp.preferences, ct.user_preferences, ct.created_at, ct.updated_at, ct.chat_ts, ct.conn_req_to_connect,
+                ct.contact_group_member_id, ct.contact_grp_inv_sent, ct.ui_themes, ct.chat_deleted, ct.custom_data, ct.chat_item_ttl,
                 -- Connection
                 c.connection_id, c.agent_conn_id, c.conn_level, c.via_contact, c.via_user_contact_link, c.via_group_link, c.group_link_id, c.custom_user_profile_id, c.conn_status, c.conn_type, c.contact_conn_initiated, c.local_alias,
                 c.contact_id, c.group_member_id, c.snd_file_id, c.rcv_file_id, c.user_contact_link_id, c.created_at, c.security_code, c.security_code_verified_at, c.pq_support, c.pq_encryption, c.pq_snd_enabled, c.pq_rcv_enabled, c.auth_err_counter, c.quota_err_counter,
@@ -329,7 +331,8 @@ Plan:
 Query: 
             SELECT
               c.contact_profile_id, c.local_display_name, c.via_group, p.display_name, p.full_name, p.image, p.contact_link, p.local_alias, c.contact_used, c.contact_status, c.enable_ntfs, c.send_rcpts, c.favorite,
-              p.preferences, c.user_preferences, c.created_at, c.updated_at, c.chat_ts, c.contact_group_member_id, c.contact_grp_inv_sent, c.ui_themes, c.chat_deleted, c.custom_data, c.chat_item_ttl
+              p.preferences, c.user_preferences, c.created_at, c.updated_at, c.chat_ts, c.conn_req_to_connect,
+              c.contact_group_member_id, c.contact_grp_inv_sent, c.ui_themes, c.chat_deleted, c.custom_data, c.chat_item_ttl
             FROM contacts c
             JOIN contact_profiles p ON c.contact_profile_id = p.contact_profile_id
             WHERE c.user_id = ? AND c.contact_id = ? AND c.deleted = 0
@@ -825,7 +828,8 @@ Query:
           SELECT
             -- Contact
             ct.contact_id, ct.contact_profile_id, ct.local_display_name, ct.via_group, cp.display_name, cp.full_name, cp.image, cp.contact_link, cp.local_alias, ct.contact_used, ct.contact_status, ct.enable_ntfs, ct.send_rcpts, ct.favorite,
-            cp.preferences, ct.user_preferences, ct.created_at, ct.updated_at, ct.chat_ts, ct.contact_group_member_id, ct.contact_grp_inv_sent, ct.ui_themes, ct.chat_deleted, ct.custom_data, ct.chat_item_ttl,
+            cp.preferences, ct.user_preferences, ct.created_at, ct.updated_at, ct.chat_ts, ct.conn_req_to_connect,
+            ct.contact_group_member_id, ct.contact_grp_inv_sent, ct.ui_themes, ct.chat_deleted, ct.custom_data, ct.chat_item_ttl,
             -- Connection
             c.connection_id, c.agent_conn_id, c.conn_level, c.via_contact, c.via_user_contact_link, c.via_group_link, c.group_link_id, c.custom_user_profile_id, c.conn_status, c.conn_type, c.contact_conn_initiated, c.local_alias,
             c.contact_id, c.group_member_id, c.snd_file_id, c.rcv_file_id, c.user_contact_link_id, c.created_at, c.security_code, c.security_code_verified_at, c.pq_support, c.pq_encryption, c.pq_snd_enabled, c.pq_rcv_enabled, c.auth_err_counter, c.quota_err_counter,
@@ -848,7 +852,8 @@ Query:
             -- GroupInfo
             g.group_id, g.local_display_name, gp.display_name, gp.full_name, g.local_alias, gp.description, gp.image,
             g.enable_ntfs, g.send_rcpts, g.favorite, gp.preferences, gp.member_admission,
-            g.created_at, g.updated_at, g.chat_ts, g.user_member_profile_sent_at, g.business_chat, g.business_member_id, g.customer_member_id,
+            g.created_at, g.updated_at, g.chat_ts, g.user_member_profile_sent_at, g.conn_req_to_connect,
+            g.business_chat, g.business_member_id, g.customer_member_id,
             g.ui_themes, g.custom_data, g.chat_item_ttl, g.members_require_attention,
             -- GroupInfo {membership}
             mu.group_member_id, mu.group_id, mu.member_id, mu.peer_chat_min_version, mu.peer_chat_max_version, mu.member_role, mu.member_category,
@@ -896,7 +901,8 @@ Query:
           SELECT
             g.group_id, g.local_display_name, gp.display_name, gp.full_name, g.local_alias, gp.description, gp.image,
             g.enable_ntfs, g.send_rcpts, g.favorite, gp.preferences, gp.member_admission,
-            g.created_at, g.updated_at, g.chat_ts, g.user_member_profile_sent_at, g.business_chat, g.business_member_id, g.customer_member_id,
+            g.created_at, g.updated_at, g.chat_ts, g.user_member_profile_sent_at, g.conn_req_to_connect,
+            g.business_chat, g.business_member_id, g.customer_member_id,
             g.ui_themes, g.custom_data, g.chat_item_ttl, g.members_require_attention,
             mu.group_member_id, g.group_id, mu.member_id, mu.peer_chat_min_version, mu.peer_chat_max_version, mu.member_role, mu.member_category, mu.member_status, mu.show_messages, mu.member_restriction,
             mu.invited_by, mu.invited_by_group_member_id, mu.local_display_name, mu.contact_id, mu.contact_profile_id, pu.contact_profile_id, pu.display_name, pu.full_name, pu.image, pu.contact_link, pu.local_alias, pu.preferences,
@@ -1392,7 +1398,8 @@ Query:
         SELECT
           -- Contact
           ct.contact_id, ct.contact_profile_id, ct.local_display_name, ct.via_group, cp.display_name, cp.full_name, cp.image, cp.contact_link, cp.local_alias, ct.contact_used, ct.contact_status, ct.enable_ntfs, ct.send_rcpts, ct.favorite,
-          cp.preferences, ct.user_preferences, ct.created_at, ct.updated_at, ct.chat_ts, ct.contact_group_member_id, ct.contact_grp_inv_sent, ct.ui_themes, ct.chat_deleted, ct.custom_data, ct.chat_item_ttl,
+          cp.preferences, ct.user_preferences, ct.created_at, ct.updated_at, ct.chat_ts, ct.conn_req_to_connect,
+          ct.contact_group_member_id, ct.contact_grp_inv_sent, ct.ui_themes, ct.chat_deleted, ct.custom_data, ct.chat_item_ttl,
           -- Connection
           c.connection_id, c.agent_conn_id, c.conn_level, c.via_contact, c.via_user_contact_link, c.via_group_link, c.group_link_id, c.custom_user_profile_id, c.conn_status, c.conn_type, c.contact_conn_initiated, c.local_alias,
           c.contact_id, c.group_member_id, c.snd_file_id, c.rcv_file_id, c.user_contact_link_id, c.created_at, c.security_code, c.security_code_verified_at, c.pq_support, c.pq_encryption, c.pq_snd_enabled, c.pq_rcv_enabled, c.auth_err_counter, c.quota_err_counter,
@@ -4571,7 +4578,8 @@ Query:
       -- GroupInfo
       g.group_id, g.local_display_name, gp.display_name, gp.full_name, g.local_alias, gp.description, gp.image,
       g.enable_ntfs, g.send_rcpts, g.favorite, gp.preferences, gp.member_admission,
-      g.created_at, g.updated_at, g.chat_ts, g.user_member_profile_sent_at, g.business_chat, g.business_member_id, g.customer_member_id,
+      g.created_at, g.updated_at, g.chat_ts, g.user_member_profile_sent_at, g.conn_req_to_connect,
+      g.business_chat, g.business_member_id, g.customer_member_id,
       g.ui_themes, g.custom_data, g.chat_item_ttl, g.members_require_attention,
       -- GroupMember - membership
       mu.group_member_id, mu.group_id, mu.member_id, mu.peer_chat_min_version, mu.peer_chat_max_version, mu.member_role, mu.member_category,
@@ -4595,7 +4603,8 @@ Query:
       -- GroupInfo
       g.group_id, g.local_display_name, gp.display_name, gp.full_name, g.local_alias, gp.description, gp.image,
       g.enable_ntfs, g.send_rcpts, g.favorite, gp.preferences, gp.member_admission,
-      g.created_at, g.updated_at, g.chat_ts, g.user_member_profile_sent_at, g.business_chat, g.business_member_id, g.customer_member_id,
+      g.created_at, g.updated_at, g.chat_ts, g.user_member_profile_sent_at, g.conn_req_to_connect,
+      g.business_chat, g.business_member_id, g.customer_member_id,
       g.ui_themes, g.custom_data, g.chat_item_ttl, g.members_require_attention,
       -- GroupMember - membership
       mu.group_member_id, mu.group_id, mu.member_id, mu.peer_chat_min_version, mu.peer_chat_max_version, mu.member_role, mu.member_category,

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

@@ -79,6 +79,7 @@ CREATE TABLE contacts(
   ui_themes TEXT,
   chat_deleted INTEGER NOT NULL DEFAULT 0,
   chat_item_ttl INTEGER,
+  conn_req_to_connect BLOB,
   FOREIGN KEY(user_id, local_display_name)
   REFERENCES display_names(user_id, local_display_name)
   ON DELETE CASCADE
@@ -135,7 +136,8 @@ CREATE TABLE groups(
   customer_member_id BLOB NULL,
   chat_item_ttl INTEGER,
   local_alias TEXT DEFAULT '',
-  members_require_attention INTEGER NOT NULL DEFAULT 0, -- received
+  members_require_attention INTEGER NOT NULL DEFAULT 0,
+  conn_req_to_connect BLOB, -- received
   FOREIGN KEY(user_id, local_display_name)
   REFERENCES display_names(user_id, local_display_name)
   ON DELETE CASCADE