formats:
  - oas3
rules:

  newcastle-info-contact:
    description: API info object should provide a contact for the Urban Observatory.
    given: $.info
    severity: warn
    then:
      field: contact
      function: truthy

  newcastle-info-description:
    description: API info object should have a description.
    given: $.info
    severity: warn
    then:
      field: description
      function: truthy

  newcastle-servers-https:
    description: Urban Observatory servers must be served over HTTPS.
    given: $.servers[*].url
    severity: error
    then:
      function: pattern
      functionOptions:
        match: '^https://'

  newcastle-operation-operationid:
    description: Every operation should declare an operationId (controller.method pattern).
    given: $.paths[*][get,post,put,delete,patch]
    severity: warn
    then:
      field: operationId
      function: truthy

  newcastle-operation-tags:
    description: Operations should be tagged with one of Entity, Feed, Timeseries.
    given: $.paths[*][get,post,put,delete,patch]
    severity: warn
    then:
      field: tags
      function: truthy

  newcastle-pagination-params:
    description: Collection endpoints should accept page and pageSize query parameters.
    given: $.paths[/api/v2.0a/sensors/entity].get.parameters[*].name
    severity: info
    then:
      function: pattern
      functionOptions:
        match: '^(page|pageSize|metric|brokerage:sourceId=\{value\}|meta:\{key\}=\{value\})$'

  newcastle-id-format-uuid:
    description: Identifier fields ending in Id should be typed as string (UUID).
    given: $.components.schemas[*].properties[?(@property.match(/Id$/))]
    severity: info
    then:
      field: type
      function: pattern
      functionOptions:
        match: '^(string|number|integer)$'