rules:
  # INFO / METADATA
  info-title-workato-prefix:
    message: API title must begin with "Workato"
    severity: warn
    given: $.info.title
    then:
      function: pattern
      functionOptions:
        match: '^Workato'

  info-description-required:
    message: Info object must have a non-empty description
    severity: error
    given: $.info
    then:
      field: description
      function: truthy

  info-version-required:
    message: Info object must have a version
    severity: error
    given: $.info
    then:
      field: version
      function: truthy

  info-contact-required:
    message: Info object should include contact information
    severity: warn
    given: $.info
    then:
      field: contact
      function: truthy

  # OPENAPI VERSION
  openapi-version-3:
    message: Must use OpenAPI 3.0.x
    severity: error
    given: $.openapi
    then:
      function: pattern
      functionOptions:
        match: '^3\.0\.'

  # SERVERS
  servers-defined:
    message: At least one server must be defined
    severity: error
    given: $
    then:
      field: servers
      function: truthy

  servers-https-only:
    message: Server URLs must use HTTPS
    severity: error
    given: $.servers[*].url
    then:
      function: pattern
      functionOptions:
        match: '^https://'

  servers-workato-domain:
    message: Server URLs should use the workato.com domain
    severity: warn
    given: $.servers[*].url
    then:
      function: pattern
      functionOptions:
        match: 'workato\.com'

  # PATHS — NAMING CONVENTIONS
  paths-kebab-case:
    message: Path segments must use kebab-case or snake_case (Workato uses snake_case)
    severity: info
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        match: '^(/[a-z0-9{][a-z0-9\-._{}]*)*$'

  paths-no-trailing-slash:
    message: Paths must not have a trailing slash
    severity: warn
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        notMatch: '/$'

  paths-api-prefix:
    message: Workato API paths should begin with /api/
    severity: warn
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        match: '^/api/'

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

  operation-description-required:
    message: All operations must have a description
    severity: warn
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: description
      function: truthy

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

  operation-id-camel-case:
    message: operationId must 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:
    message: Operations must have at least one tag
    severity: warn
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: tags
      function: truthy

  operation-summary-workato-prefix:
    message: Operation summaries must start with "Workato"
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].summary
    then:
      function: pattern
      functionOptions:
        match: '^Workato'

  # TAGS
  tags-defined:
    message: Global tags array should be defined
    severity: info
    given: $
    then:
      field: tags
      function: truthy

  # PARAMETERS
  parameter-description-required:
    message: Parameters must have a description
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].parameters[*]
    then:
      field: description
      function: truthy

  parameter-schema-required:
    message: Parameters must have a schema
    severity: error
    given: $.paths[*][get,post,put,patch,delete].parameters[*]
    then:
      field: schema
      function: truthy

  parameter-snake-case:
    message: Parameter names should use snake_case (Workato convention)
    severity: info
    given: $.paths[*][get,post,put,patch,delete].parameters[*].name
    then:
      function: pattern
      functionOptions:
        match: '^[a-z][a-z0-9_]*$'

  # REQUEST BODIES
  request-body-json-content:
    message: Request bodies should use application/json content type
    severity: warn
    given: $.paths[*][post,put,patch].requestBody.content
    then:
      field: application/json
      function: truthy

  # RESPONSES
  response-success-required:
    message: Operations must have a success response (200 or 201)
    severity: error
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          anyOf:
            - required: ['200']
            - required: ['201']
            - required: ['204']

  response-description-required:
    message: All responses must have a description
    severity: error
    given: $.paths[*][get,post,put,patch,delete].responses[*]
    then:
      field: description
      function: truthy

  response-401-unauthorized:
    message: Authenticated endpoints must document 401 response
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      field: '401'
      function: truthy

  response-422-validation:
    message: POST/PUT endpoints should document 422 validation errors
    severity: info
    given: $.paths[*][post,put].responses
    then:
      field: '422'
      function: truthy

  # SCHEMAS — PROPERTY NAMING
  schema-description-required:
    message: Top-level schemas must have a description
    severity: warn
    given: $.components.schemas[*]
    then:
      field: description
      function: truthy

  schema-type-defined:
    message: Schemas must have a type defined
    severity: warn
    given: $.components.schemas[*]
    then:
      field: type
      function: truthy

  schema-property-snake-case:
    message: Schema properties should use snake_case (Workato convention)
    severity: warn
    given: $.components.schemas[*].properties[*]~
    then:
      function: pattern
      functionOptions:
        match: '^[a-z][a-z0-9_]*$'

  schema-property-description:
    message: Schema properties should have descriptions
    severity: info
    given: $.components.schemas[*].properties[*]
    then:
      field: description
      function: truthy

  # SECURITY
  security-schemes-defined:
    message: Security schemes must be defined in components
    severity: error
    given: $.components
    then:
      field: securitySchemes
      function: truthy

  security-bearer-token:
    message: Workato APIs should use bearer token authentication
    severity: warn
    given: $.components.securitySchemes[*]
    then:
      field: scheme
      function: pattern
      functionOptions:
        match: '^bearer$'

  security-header-api-token:
    message: API token should be in Authorization header as Bearer token
    severity: info
    given: $.components.securitySchemes[*][?(@.type == 'apiKey')]
    then:
      field: in
      function: enumeration
      functionOptions:
        values: [header]

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

  delete-returns-success:
    message: DELETE operations should return 200 or 204
    severity: warn
    given: $.paths[*].delete.responses
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          anyOf:
            - required: ['200']
            - required: ['204']

  # GENERAL QUALITY
  no-empty-descriptions:
    message: Descriptions must not be empty strings
    severity: warn
    given: $..description
    then:
      function: pattern
      functionOptions:
        match: '.+'

  operations-have-examples:
    message: Operations should have response examples for documentation and mocking
    severity: info
    given: $.paths[*][get,post,put,patch,delete].responses[*].content.application\/json
    then:
      field: examples
      function: truthy

  microcks-operation-extension:
    message: Operations should have x-microcks-operation extension for mock server compatibility
    severity: info
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: x-microcks-operation
      function: truthy