extends:
  - spectral:oas

# Spectral linting rules tuned for CircleCI REST APIs.
# Validates that OpenAPI specs follow the conventions described at
# https://circleci.com/docs/api/v2/ — token-based auth via Circle-Token,
# JSON responses, and resource-oriented v2 paths.
rules:
  circleci-info-contact:
    description: API contact information must be present.
    severity: error
    given: "$.info"
    then:
      field: contact
      function: truthy

  circleci-info-license:
    description: API license must be declared.
    severity: warn
    given: "$.info"
    then:
      field: license
      function: truthy

  circleci-server-https:
    description: All server URLs must use HTTPS.
    severity: error
    given: "$.servers[*].url"
    then:
      function: pattern
      functionOptions:
        match: "^https://"

  circleci-server-versioned:
    description: REST v2 server URLs must include /api/v2.
    severity: warn
    given: "$.servers[?(@.url && @.url.indexOf('circleci.com') > -1)].url"
    then:
      function: pattern
      functionOptions:
        match: "/api/v[12](\\.\\d+)?$"

  circleci-token-security:
    description: A Circle-Token API key security scheme must be defined.
    severity: error
    given: "$.components.securitySchemes"
    then:
      function: truthy

  circleci-operation-tags:
    description: Every operation must declare at least one tag.
    severity: warn
    given: "$.paths[*][get,post,put,patch,delete]"
    then:
      field: tags
      function: schema
      functionOptions:
        schema:
          type: array
          minItems: 1

  circleci-operation-summary:
    description: Every operation must include a short summary.
    severity: warn
    given: "$.paths[*][get,post,put,patch,delete]"
    then:
      field: summary
      function: truthy

  circleci-operation-id:
    description: Every operation must declare a unique operationId.
    severity: error
    given: "$.paths[*][get,post,put,patch,delete]"
    then:
      field: operationId
      function: truthy

  circleci-error-responses:
    description: Mutating operations should declare 4xx/5xx error responses.
    severity: warn
    given: "$.paths[*][post,put,patch,delete].responses"
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          anyOf:
            - required: ["400"]
            - required: ["401"]
            - required: ["403"]
            - required: ["404"]
            - required: ["422"]

  circleci-pagination-cursor:
    description: List endpoints should support page-token pagination.
    severity: info
    given: "$.paths[?(@property.match(/list$|projects$|workflows$|jobs$|pipelines$/))].get.parameters[*].name"
    then:
      function: enumeration
      functionOptions:
        values:
          - page-token
          - circle-token
          - branch
          - mine