rules:

  # INFO / METADATA
  info-title-adobe-prefix:
    description: API title must start with "Adobe"
    severity: warn
    given: $.info.title
    then:
      function: pattern
      functionOptions:
        match: "^Adobe"

  info-description-required:
    description: API info must have a description
    severity: error
    given: $.info
    then:
      field: description
      function: truthy

  info-version-required:
    description: API must declare a version
    severity: error
    given: $.info
    then:
      field: version
      function: truthy

  info-contact-required:
    description: API info should include contact details
    severity: warn
    given: $.info
    then:
      field: contact
      function: truthy

  # OPENAPI VERSION
  openapi-version-3:
    description: Must use OpenAPI 3.x
    severity: error
    given: $
    then:
      field: openapi
      function: pattern
      functionOptions:
        match: "^3\\."

  # SERVERS
  servers-defined:
    description: API must define servers
    severity: error
    given: $
    then:
      field: servers
      function: truthy

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

  servers-description-required:
    description: Each server should have a description
    severity: warn
    given: $.servers[*]
    then:
      field: description
      function: truthy

  # PATHS — NAMING CONVENTIONS
  paths-no-trailing-slash:
    description: Paths must not end with a trailing slash
    severity: warn
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        notMatch: "/$"

  paths-valid-chars:
    description: Paths should use valid URL characters
    severity: info
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        match: "^/[a-zA-Z0-9{}/_.:~-]*$"

  # OPERATIONS
  operation-summary-required:
    description: Every operation must have a summary
    severity: error
    given: $.paths[*][get,post,put,patch,delete,head,options]
    then:
      field: summary
      function: truthy

  operation-summary-adobe-prefix:
    description: Operation summaries should start with an Adobe product name
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].summary
    then:
      function: pattern
      functionOptions:
        match: "^Adobe"

  operation-description-required:
    description: Every operation must have a description
    severity: error
    given: $.paths[*][get,post,put,patch,delete,head,options]
    then:
      field: description
      function: truthy

  operation-id-required:
    description: Every operation must have an operationId
    severity: error
    given: $.paths[*][get,post,put,patch,delete,head,options]
    then:
      field: operationId
      function: truthy

  operation-id-camelcase:
    description: operationId should use camelCase
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].operationId
    then:
      function: pattern
      functionOptions:
        match: "^[a-z][a-zA-Z0-9]+$"

  operation-tags-required:
    description: Every operation must have tags
    severity: error
    given: $.paths[*][get,post,put,patch,delete,head,options]
    then:
      field: tags
      function: truthy

  # TAGS
  tags-defined:
    description: API should define global tags
    severity: warn
    given: $
    then:
      field: tags
      function: truthy

  # PARAMETERS
  parameter-description-required:
    description: All parameters must have descriptions
    severity: error
    given: $.paths[*][*].parameters[*]
    then:
      field: description
      function: truthy

  parameter-schema-required:
    description: All parameters must have a schema
    severity: error
    given: $.paths[*][*].parameters[*]
    then:
      field: schema
      function: truthy

  # REQUEST BODIES
  request-body-description:
    description: Request bodies should have descriptions
    severity: warn
    given: $.paths[*][post,put,patch].requestBody
    then:
      field: description
      function: truthy

  # RESPONSES
  response-success-required:
    description: Every operation must define at least one 2xx response
    severity: error
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: responses
      function: schema
      functionOptions:
        schema:
          anyOf:
            - required: ["200"]
            - required: ["201"]
            - required: ["202"]
            - required: ["204"]

  response-error-401:
    description: Authenticated operations should define 401 response
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      function: schema
      functionOptions:
        schema:
          anyOf:
            - required: ["401"]
            - required: ["400"]

  response-description-required:
    description: All responses must have a description
    severity: error
    given: $.paths[*][*].responses[*]
    then:
      field: description
      function: truthy

  # SCHEMAS
  schema-description:
    description: Top-level component schemas should have descriptions
    severity: warn
    given: $.components.schemas[*]
    then:
      field: description
      function: truthy

  schema-type-defined:
    description: Schemas should define a type
    severity: warn
    given: $.components.schemas[*]
    then:
      field: type
      function: truthy

  # SECURITY
  security-schemes-defined:
    description: API must define security schemes in components
    severity: error
    given: $.components
    then:
      field: securitySchemes
      function: truthy

  security-global-required:
    description: API should define global security
    severity: warn
    given: $
    then:
      field: security
      function: truthy

  # HTTP METHOD CONVENTIONS
  get-no-request-body:
    description: GET operations must not have a request body
    severity: error
    given: $.paths[*].get
    then:
      field: requestBody
      function: falsy

  delete-no-request-body:
    description: DELETE operations should not have a request body
    severity: warn
    given: $.paths[*].delete
    then:
      field: requestBody
      function: falsy

  # GENERAL QUALITY
  no-empty-descriptions:
    description: Descriptions must not be empty strings
    severity: error
    given: $..description
    then:
      function: truthy

  examples-encouraged:
    description: Responses should include examples
    severity: info
    given: $.paths[*][get,post,put,patch,delete].responses[*].content[*]
    then:
      function: schema
      functionOptions:
        schema:
          anyOf:
            - required: ["example"]
            - required: ["examples"]