From 7de56b019fe34872dbfb77a46ba5fadd15e1dc2d Mon Sep 17 00:00:00 2001
From: Erik Arvstedt <erik.arvstedt@gmail.com>
Date: Sat, 30 Apr 2022 15:35:46 +0200
Subject: [PATCH] nbxplorer: use postgresql

The former DBTrie backend has been deprecated.
---
 examples/configuration.nix |  2 +-
 modules/backups.nix        |  4 +++-
 modules/btcpayserver.nix   | 20 ++++++++++++++------
 modules/versioning.nix     | 11 +++++++++++
 4 files changed, 29 insertions(+), 8 deletions(-)

diff --git a/examples/configuration.nix b/examples/configuration.nix
index 84d0c0e..93b9f14 100644
--- a/examples/configuration.nix
+++ b/examples/configuration.nix
@@ -268,5 +268,5 @@
   # The nix-bitcoin release version that your config is compatible with.
   # When upgrading to a backwards-incompatible release, nix-bitcoin will display an
   # an error and provide hints for migrating your config to the new release.
-  nix-bitcoin.configVersion = "0.0.65";
+  nix-bitcoin.configVersion = "0.0.70";
 }
diff --git a/modules/backups.nix b/modules/backups.nix
index 9f2220a..21e0b20 100644
--- a/modules/backups.nix
+++ b/modules/backups.nix
@@ -121,6 +121,8 @@ in {
         fi
       '';
 
-      services.backups.postgresqlDatabases = mkIf config.services.btcpayserver.enable [ "btcpaydb" ];
+      services.backups.postgresqlDatabases = mkIf config.services.btcpayserver.enable (
+        [ "btcpaydb" ] ++ optional cfg.with-bulk-data "nbxplorer"
+      );
     };
 }
diff --git a/modules/btcpayserver.nix b/modules/btcpayserver.nix
index 2b55e5b..8f5f92a 100644
--- a/modules/btcpayserver.nix
+++ b/modules/btcpayserver.nix
@@ -136,11 +136,17 @@ in {
     };
     services.postgresql = {
       enable = true;
-      ensureDatabases = [ "btcpaydb" ];
-      ensureUsers = [{
-        name = cfg.btcpayserver.user;
-        ensurePermissions."DATABASE btcpaydb" = "ALL PRIVILEGES";
-      }];
+      ensureDatabases = [ "btcpaydb" "nbxplorer" ];
+      ensureUsers = [
+        {
+          name = cfg.btcpayserver.user;
+          ensurePermissions."DATABASE btcpaydb" = "ALL PRIVILEGES";
+        }
+        {
+          name = cfg.nbxplorer.user;
+          ensurePermissions."DATABASE nbxplorer" = "ALL PRIVILEGES";
+        }
+      ];
     };
 
     systemd.tmpfiles.rules = [
@@ -162,10 +168,12 @@ in {
           lbtcrpcurl=http://${nbLib.addressWithPort liquidd.rpc.address liquidd.rpc.port}
           lbtcnodeendpoint=${nbLib.addressWithPort liquidd.address liquidd.whitelistedPort}
         ''}
+        postgres=User ID=${cfg.nbxplorer.user};Host=/run/postgresql;Database=nbxplorer
+        automigrate=1
       '';
     in rec {
       wantedBy = [ "multi-user.target" ];
-      requires = [ "bitcoind.service" ] ++ optional cfg.btcpayserver.lbtc "liquidd.service";
+      requires = [ "bitcoind.service" "postgresql.service" ] ++ optional cfg.btcpayserver.lbtc "liquidd.service";
       after = requires;
       preStart = ''
         install -m 600 ${configFile} '${cfg.nbxplorer.dataDir}/settings.config'
diff --git a/modules/versioning.nix b/modules/versioning.nix
index e1d6761..aa9693f 100644
--- a/modules/versioning.nix
+++ b/modules/versioning.nix
@@ -202,6 +202,17 @@ let
           config to your node.
       '';
     }
+    {
+      version = "0.0.70";
+      condition = config.services.nbxplorer.enable;
+      message = ''
+        The nbxplorer database backend has changed from DBTrie to Postgresql.
+        The new `services.postgresql` database name is `nbxplorer`.
+        The migration happens automatically after deploying.
+        Migration time for a large server with a 5GB DBTrie database takes about 40 minutes.
+        See also: https://github.com/dgarage/NBXplorer/blob/master/docs/Postgres-Migration.md
+      '';
+    }
   ];
 
   mkOnionServiceChange = service: {