# stratum-base.ncl — shared Nickel types for stratum action nodes.
# Published as OCI artifact to Zot registry.
# Import: let base = import "nickel/stratum-base/stratum-base.ncl" in

let RetryPolicy = {
  max          | Number | default = 3,
  backoff_secs | Number | default = 10,
  strategy     | [| 'fixed, 'linear, 'exponential |] | default = 'exponential,
}
in

let default_retry = {
  max          = 3,
  backoff_secs = 10,
  strategy     = 'exponential,
}
in

let NodeDefinition = {
  id             | String,
  handler        | String,
  input_schemas  | { _ : String } | default = {},
  output_schemas | { _ : String } | default = {},
  compensate     | std.option.Option String | default = std.option.None,
  retry          | RetryPolicy | default = default_retry,
  timeout_secs   | Number | default = 300,
  atomic         | Bool   | default = true,
  triggers       | Array String | default = [],
}
in

let CapabilitySchema = {
  name        | String,
  description | String,
  schema      | { _ : Dyn },
}
in

let SagaConfig = {
  compensation_order | [| 'reverse, 'parallel |] | default = 'reverse,
  fail_fast          | Bool | default = true,
}
in

let ActionGroup = {
  id      | String,
  nodes   | Array NodeDefinition,
  trigger | Array String,
  saga    | SagaConfig | default = {},
}
in

{
  NodeDefinition,
  RetryPolicy,
  CapabilitySchema,
  SagaConfig,
  ActionGroup,
  default_retry,
}