- name: "Ensure configuration.php DB settings match inventory"
  command:
    argv:
      - docker
      - exec
      - -e
      - J_DBTYPE={{ JOOMLA_DB_CONNECTOR }}
      - -e
      - J_DBHOST={{ database_host }}:{{ database_port }}
      - -e
      - J_DBUSER={{ database_username }}
      - -e
      - J_DBPASS={{ database_password }}
      - -e
      - J_DBNAME={{ database_name }}
      - "{{ JOOMLA_CONTAINER }}"
      - php
      - -r
      - |
        $f = '{{ JOOMLA_CONFIG_FILE }}';
        if (!file_exists($f)) { exit(0); }
        $c = file_get_contents($f);
        $changed = 0;

        $map = [
          'dbtype'   => getenv('J_DBTYPE'),
          'host'     => getenv('J_DBHOST'),
          'user'     => getenv('J_DBUSER'),
          'password' => getenv('J_DBPASS'),
          'db'       => getenv('J_DBNAME'),
        ];

        foreach ($map as $k => $v) {
          // Escape single quotes for safe embedding into the PHP source string
          $vEsc = str_replace("'", "\\'", $v);

          // Match current value in config: public $key = '...';
          if (preg_match("/public \\$".$k."\\s*=\\s*'([^']*)';/", $c, $m) && $m[1] !== $v) {
            $c = preg_replace(
              "/public \\$".$k."\\s*=\\s*'[^']*';/",
              "public $".$k." = '".$vEsc."';",
              $c
            );
            $changed = 1;
          }
        }

        if ($changed) { file_put_contents($f, $c); echo "changed"; } else { echo "ok"; }
  register: cfg_patch
  changed_when: cfg_patch.stdout == "changed"
  failed_when: cfg_patch.rc != 0
  when: joomla_installed.rc == 0