extends: spectral:oas
rules:
  aws-billing-operation-summary-title-case:
    description: All operation summaries must use Title Case
    message: "Operation summary '{{value}}' must be in Title Case"
    severity: warn
    given: "$.paths[*][*].summary"
    then:
      function: pattern
      functionOptions:
        match: "^([A-Z][a-z0-9]*(\\s[A-Z][a-z0-9]*)*|[A-Z]+)$"

  aws-billing-operation-tags:
    description: All operations must have at least one tag
    message: Operation must have at least one tag
    severity: error
    given: "$.paths[*][*]"
    then:
      field: tags
      function: truthy

  aws-billing-operation-id:
    description: All operations must have an operationId
    message: Operation must have an operationId
    severity: error
    given: "$.paths[*][*]"
    then:
      field: operationId
      function: truthy

  aws-billing-operation-description:
    description: All operations must have a description
    message: Operation must have a description
    severity: warn
    given: "$.paths[*][*]"
    then:
      field: description
      function: truthy

  aws-billing-error-responses:
    description: All operations must define error responses
    message: Operation must define 4xx or 5xx error responses
    severity: warn
    given: "$.paths[*][*]"
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          properties:
            responses:
              type: object
              minProperties: 2