flake reorg, nix integration testing

nix/unit-tests.nix

@@ -0,0 +1,53 @@
+{
+  pkgs,
+  lib,
+  ...
+}: {
+  name = "demostf-api-unit-tests";
+  nodes.machine = {config, ...}: {
+    config = {
+      users.groups.demostf = {};
+      users.users.demostf = {
+        group = "demostf";
+        isSystemUser = true;
+      };
+
+      services.postgresql = {
+        enable = true;
+        ensureDatabases = ["demostf"];
+        ensureUsers = [
+          {
+            name = "demostf";
+            ensureDBOwnership = true;
+          }
+        ];
+        initialScript = pkgs.writeText "init-sql-script" ''
+          CREATE EXTENSION IF NOT EXISTS pg_trgm WITH SCHEMA public;
+        '';
+      };
+    };
+  };
+
+  testScript = let
+    php = lib.getExe pkgs.demostf-api-php;
+    api = pkgs.demostf-api-dev;
+    initSql = pkgs.fetchurl {
+      url = "https://github.com/demostf/db/raw/refs/heads/master/schema.sql";
+      hash = "sha256-AwXN9mh9CRk6HWdvyUR+YdBkpmExNIDOIeDMz6XqjEQ=";
+    };
+  in ''
+    machine.succeed("mkdir /demos && chmod 0777 /demos");
+    machine.wait_for_unit("postgresql")
+    machine.succeed("sudo -u demostf psql demostf demostf < ${initSql}");
+    machine.succeed("sudo -u postgres psql postgres postgres -c \"alter user demostf with password 'demostf';\"");
+    machine.succeed("cd ${api}/share/php/demostf-api; DB_HOST='localhost'\
+        DB_TYPE='pgsql'\
+        DB_PORT='5432'\
+        DB_USERNAME='demostf'\
+        DB_PASSWORD='demostf'\
+        DB_DATABASE='demostf'\
+        BASE_URL='http://localhost/'\
+        EDIT_KEY='edit'\
+        ${php} ./vendor/bin/phpunit test", timeout=180)
+  '';
+}