arazzo: 1.0.1
info:
  title: SAP BRIM Top Up and Charge a Prepaid Account
  summary: Read a prepaid balance, top it up, execute a charge, and confirm the new balance.
  description: >-
    Drives a prepaid charging cycle on SAP BRIM Convergent Charging. The workflow
    reads the account balance, adds funds with a top-up, executes a prepaid
    charge against the account, and reads the balance back to confirm the
    deduction. Every step spells out its request inline so the flow can be read
    and executed without opening the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: convergentChargingApi
  url: ../openapi/sap-brim-convergent-charging-openapi.yml
  type: openapi
workflows:
- workflowId: prepaid-topup-and-charge
  summary: Top up a prepaid balance and execute a charge against it.
  description: >-
    Reads the current balance, tops up the prepaid account, charges it, and
    reads the balance again to confirm the charge was applied.
  inputs:
    type: object
    required:
    - accountId
    - topUpValue
    - chargeValue
    - currency
    properties:
      accountId:
        type: string
        description: Identifier of the subscriber account.
      topUpValue:
        type: number
        description: Amount value to add to the prepaid balance.
      chargeValue:
        type: number
        description: Amount value to charge against the account.
      currency:
        type: string
        description: ISO 4217 currency code for both the top-up and the charge.
      serviceType:
        type: string
        description: Optional service type associated with the charge.
      reference:
        type: string
        description: Optional external payment reference for the top-up.
  steps:
  - stepId: getInitialBalance
    description: Read the current balance information for the prepaid account.
    operationId: getAccountBalance
    parameters:
    - name: accountId
      in: path
      value: $inputs.accountId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      availableBalance: $response.body#/availableBalance
      accountType: $response.body#/accountType
  - stepId: topUp
    description: Add funds to the prepaid account balance.
    operationId: topUpBalance
    parameters:
    - name: accountId
      in: path
      value: $inputs.accountId
    requestBody:
      contentType: application/json
      payload:
        amount:
          value: $inputs.topUpValue
          currency: $inputs.currency
        reference: $inputs.reference
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      availableBalance: $response.body#/availableBalance
  - stepId: charge
    description: Execute a prepaid charge against the funded account.
    operationId: chargeAccount
    requestBody:
      contentType: application/json
      payload:
        accountId: $inputs.accountId
        amount:
          value: $inputs.chargeValue
          currency: $inputs.currency
        chargeType: PREPAID
        serviceType: $inputs.serviceType
    successCriteria:
    - condition: $statusCode == 200
    - context: $response.body
      condition: $.status == "COMPLETED"
      type: jsonpath
    outputs:
      chargeId: $response.body#/chargeId
      remainingBalance: $response.body#/remainingBalance
  - stepId: getFinalBalance
    description: Read the balance back to confirm the charge was deducted.
    operationId: getAccountBalance
    parameters:
    - name: accountId
      in: path
      value: $inputs.accountId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      availableBalance: $response.body#/availableBalance
      lastUpdated: $response.body#/lastUpdated
  outputs:
    chargeId: $steps.charge.outputs.chargeId
    remainingBalance: $steps.charge.outputs.remainingBalance
    finalAvailableBalance: $steps.getFinalBalance.outputs.availableBalance