Efí Card Charge Refund

arazzo: 1.0.1
info:
  title: Efí Card Charge Refund
  summary: Detail a Cobranças card charge, branch on its status, and refund it when paid.
  description: >-
    A card-payment reconciliation-and-refund flow for Efí Pay Cobranças. The
    workflow authenticates, reads a charge by id, and branches on its status:
    when the card charge has been paid it issues a refund against the card,
    otherwise it ends without refunding. Refunds only apply to charges that were
    actually captured, so the status branch guards the refund call. 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: efiCobrancasApi
  url: ../openapi/efi-cobrancas-openapi.yml
  type: openapi
workflows:
- workflowId: card-charge-refund
  summary: Check a card charge status and refund the card when the charge is paid.
  description: >-
    Authenticates, details the charge by id, and only when its status is paid
    issues a card refund for the requested amount.
  inputs:
    type: object
    required:
    - clientId
    - clientSecret
    - chargeId
    - refundAmount
    properties:
      clientId:
        type: string
        description: The OAuth2 client_id issued for the Efí Pay account.
      clientSecret:
        type: string
        description: The OAuth2 client_secret issued for the Efí Pay account.
      chargeId:
        type: integer
        description: The id of the card charge to inspect and potentially refund.
      refundAmount:
        type: integer
        description: The refund amount in cents to credit back to the card.
  steps:
  - stepId: authenticate
    description: >-
      Exchange the client_id and client_secret for an OAuth2 access token using
      the client_credentials grant required by the Cobranças API.
    operationId: authorize
    requestBody:
      contentType: application/json
      payload:
        grant_type: client_credentials
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      accessToken: $response.body#/access_token
  - stepId: detailCharge
    description: >-
      Read the charge by id and capture its status so the refund branch can be
      gated on whether the card charge was paid.
    operationId: detailCharge
    parameters:
    - name: Authorization
      in: header
      value: Bearer $steps.authenticate.outputs.accessToken
    - name: id
      in: path
      value: $inputs.chargeId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      status: $response.body#/data/status
      total: $response.body#/data/total
    onSuccess:
    - name: chargePaid
      type: goto
      stepId: refundCard
      criteria:
      - context: $response.body
        condition: $.data.status == "paid"
        type: jsonpath
    - name: chargeUnpaid
      type: end
      criteria:
      - context: $response.body
        condition: $.data.status != "paid"
        type: jsonpath
  - stepId: refundCard
    description: >-
      Issue a refund against the card for the requested amount on the paid
      charge.
    operationId: refundCard
    parameters:
    - name: Authorization
      in: header
      value: Bearer $steps.authenticate.outputs.accessToken
    - name: id
      in: path
      value: $inputs.chargeId
    requestBody:
      contentType: application/json
      payload:
        value: $inputs.refundAmount
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      refundStatus: $response.body#/data/status
  outputs:
    chargeStatus: $steps.detailCharge.outputs.status
    refundStatus: $steps.refundCard.outputs.refundStatus