let _concerns_lib = import "schemas/lib/concerns.ncl" in

{
  MariaDB = {
    name      | String,
    version   | String,
    port      | Number | default = 3306,
    data_dir  | String | default = "/var/lib/mysql",
    databases  | Array String | default = [],
    mode       | [| 'taskserv, 'cluster, 'container |] | default = 'cluster,

    # Optional MariaDB server config injected as /etc/mysql/conf.d/extra.cnf.
    # Empty string = no ConfigMap, no mount. Non-empty creates a ConfigMap and
    # mounts it into the container, triggering a StatefulSet rolling restart on update.
    extra_cnf  | String | default = "",

    namespace     | String | optional,
    image         | String | optional,
    replicas      | Number | optional,
    storage_class | String | optional,

    requires | {
      storage | { size | String, persistent | Bool } | optional,
      ports   | Array {
        port     | Number,
        protocol | String | default = "TCP",
        exposure | [| 'public, 'private, 'internal |] | default = 'internal,
      } | default = [],
      credentials | Array String | default = [],
    } | default = {},

    provides | {
      service   | String | optional,
      port      | Number | optional,
      databases | Array String | default = [],
    } | default = {},

    operations | {
      install | Bool | default = true,
      update  | Bool | default = false,
      delete  | Bool | default = false,
      backup  | Bool | default = false,
      restore | Bool | default = false,
      health  | Bool | default = false,
      restart | Bool | default = false,
    } | default = {},

    # ServiceConcerns umbrella (ADR-008). Database — backup decided at workspace level.
    concerns | _concerns_lib.ServiceConcerns | optional,

    ..
  },
}