rules:

  # =====================================================================
  # INFO / METADATA
  # =====================================================================
  info-title-format:
    description: API title should follow the "Workday ..." naming pattern
    severity: warn
    given: $.info.title
    then:
      function: pattern
      functionOptions:
        match: "^Workday .+ API$"

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

  info-description-min-length:
    description: API description should be at least 50 characters
    severity: warn
    given: $.info.description
    then:
      function: length
      functionOptions:
        min: 50

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

  info-version-format:
    description: API version should follow the "v{N}" pattern (e.g. v1)
    severity: warn
    given: $.info.version
    then:
      function: pattern
      functionOptions:
        match: "^v[0-9]+$"

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

  info-contact-name:
    description: Contact should include a name
    severity: warn
    given: $.info.contact
    then:
      field: name
      function: truthy

  info-contact-url:
    description: Contact should include a developer URL
    severity: warn
    given: $.info.contact
    then:
      field: url
      function: truthy

  # =====================================================================
  # OPENAPI VERSION
  # =====================================================================
  openapi-version:
    description: APIs must use OpenAPI 3.0.x
    severity: error
    given: $.openapi
    then:
      function: pattern
      functionOptions:
        match: "^3\\.0\\."

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

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

  servers-tenant-pattern:
    description: Server URLs should follow the Workday tenant pattern (e.g. https://{tenant}.workday.com/api/{domain}/v{N})
    severity: warn
    given: $.servers[*].url
    then:
      function: pattern
      functionOptions:
        match: "^https://\\{tenant\\}\\.workday\\.com/api/[a-z][a-z-]*/v[0-9]+$"

  servers-description-required:
    description: Servers should have descriptions
    severity: warn
    given: $.servers[*]
    then:
      field: description
      function: truthy

  # =====================================================================
  # PATHS — NAMING CONVENTIONS
  # =====================================================================
  paths-camel-case:
    description: Path segments should use camelCase (Workday convention)
    severity: warn
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        match: "^(/([a-z][a-zA-Z0-9]*|\\{[a-zA-Z][a-zA-Z0-9]*\\}))+$"

  paths-no-trailing-slash:
    description: Paths must not have trailing slashes
    severity: error
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        notMatch: "/$"

  paths-no-query-string:
    description: Paths must not contain query strings
    severity: error
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        notMatch: "\\?"

  paths-no-version-prefix:
    description: API version belongs in the server URL, not in the path
    severity: warn
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        notMatch: "^/v[0-9]+(/|$)"

  paths-worker-scoped-when-applicable:
    description: Worker-specific resources should be scoped under /workers/{workerId}
    severity: info
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        notMatch: "^/(timeBlocks|timeOff|timeRequests|timesheets|timeClockEvents|workSchedule|leaveOfAbsence|balances|accruals)(/|$)"

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

  operation-summary-title-case:
    description: Operation summaries should use Title Case (e.g., "List Time Blocks")
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].summary
    then:
      function: pattern
      functionOptions:
        match: "^[A-Z][A-Za-z0-9]*(\\s[A-Z0-9][A-Za-z0-9-]*)*$"

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

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

  operation-id-camel-case:
    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-id-verb-prefix:
    description: operationId should start with a recognized verb (list, get, create, update, delete, request, submit, assign, import, override)
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].operationId
    then:
      function: pattern
      functionOptions:
        match: "^(list|get|create|update|delete|request|submit|assign|import|override|cancel|approve|deny|return)[A-Z][a-zA-Z0-9]+$"

  operation-tags-required:
    description: All operations must have at least one tag
    severity: error
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: tags
      function: truthy

  operation-single-tag:
    description: Operations should have exactly one tag for clean grouping
    severity: info
    given: $.paths[*][get,post,put,patch,delete].tags
    then:
      function: length
      functionOptions:
        max: 1

  # =====================================================================
  # TAGS
  # =====================================================================
  tags-defined-globally:
    description: Global tags array should be defined at the root
    severity: warn
    given: $
    then:
      field: tags
      function: truthy

  tags-title-case:
    description: Tags should use Title Case (e.g. "Time Blocks", "Leave of Absence")
    severity: warn
    given: $.tags[*].name
    then:
      function: pattern
      functionOptions:
        match: "^[A-Z][a-zA-Z]*(\\s(of|to|for|and|the|in|on)|\\s[A-Z][a-zA-Z]*)*$"

  tags-description-required:
    description: All global tags should have descriptions
    severity: warn
    given: $.tags[*]
    then:
      field: description
      function: truthy

  # =====================================================================
  # PARAMETERS
  # =====================================================================
  parameter-description-required:
    description: All parameters must have descriptions
    severity: error
    given: $.paths[*][get,post,put,patch,delete].parameters[*]
    then:
      field: description
      function: truthy

  parameter-camel-case:
    description: Parameter names should use camelCase (Workday convention)
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].parameters[*].name
    then:
      function: pattern
      functionOptions:
        match: "^[a-z][a-zA-Z0-9]*$"

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

  parameter-pagination-offset:
    description: Use "offset" (not "skip", "from", or "page") for pagination offset
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].parameters[?(@.in == 'query')].name
    then:
      function: pattern
      functionOptions:
        notMatch: "^(skip|from|page|pageNumber|pageNum)$"

  parameter-pagination-limit:
    description: Use "limit" (not "size", "count", or "perPage") for pagination size
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].parameters[?(@.in == 'query')].name
    then:
      function: pattern
      functionOptions:
        notMatch: "^(size|count|perPage|pageSize)$"

  parameter-date-range-naming:
    description: Date range filters should use startDate/endDate (Workday convention)
    severity: info
    given: $.paths[*][get,post,put,patch,delete].parameters[?(@.in == 'query')].name
    then:
      function: pattern
      functionOptions:
        notMatch: "^(fromDate|toDate|dateFrom|dateTo|begin|end)$"

  parameter-worker-id-naming:
    description: Worker identifier path parameter should be named "workerId"
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].parameters[?(@.in == 'path' && @.name =~ /worker/i)].name
    then:
      function: enumeration
      functionOptions:
        values:
          - workerId

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

  request-body-json-content:
    description: Request bodies must support application/json
    severity: error
    given: $.paths[*][post,put,patch].requestBody.content
    then:
      field: application/json
      function: truthy

  request-body-schema-ref:
    description: Request body schemas should reference a named component (not be inlined)
    severity: warn
    given: $.paths[*][post,put,patch].requestBody.content.application/json.schema
    then:
      field: $ref
      function: truthy

  # =====================================================================
  # RESPONSES
  # =====================================================================
  response-success-required:
    description: All operations must define at least one response
    severity: error
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          minProperties: 1

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

  response-401-required:
    description: All operations should define a 401 Unauthorized response
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      field: '401'
      function: truthy

  response-404-required-for-resource-paths:
    description: GET/PUT/DELETE on resource paths should define a 404 Not Found response
    severity: warn
    given: $.paths[?(@property.match(/\\{[a-zA-Z]+\\}$/))][get,put,delete].responses
    then:
      field: '404'
      function: truthy

  response-400-for-mutations:
    description: POST/PUT/PATCH operations should define a 400 Bad Request response
    severity: warn
    given: $.paths[*][post,put,patch].responses
    then:
      field: '400'
      function: truthy

  response-success-json-content:
    description: 2xx responses with content should use application/json
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].responses[?(@property.match(/^2[0-9]{2}$/))].content
    then:
      field: application/json
      function: truthy

  response-error-schema:
    description: Error responses should reference an error schema with message and error fields
    severity: info
    given: $.components.schemas.ErrorResponse.properties
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          required:
            - error
            - message

  response-delete-204:
    description: DELETE operations should return 204 No Content
    severity: info
    given: $.paths[*].delete.responses
    then:
      field: '204'
      function: truthy

  # =====================================================================
  # SCHEMAS — PROPERTY NAMING
  # =====================================================================
  schema-property-camel-case:
    description: Schema property names should use camelCase (Workday convention)
    severity: warn
    given: $.components.schemas[*].properties[*]~
    then:
      function: pattern
      functionOptions:
        match: "^[a-z][a-zA-Z0-9]*$"

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

  schema-description-required:
    description: Top-level schemas should have a description
    severity: warn
    given: $.components.schemas[*]
    then:
      field: description
      function: truthy

  schema-id-property-naming:
    description: Identifier properties should be named "id" or end with "Id" (e.g., workerId, timeBlockId)
    severity: info
    given: $.components.schemas[*].properties[?(@property.match(/^[a-zA-Z]*[Ii]dentifier$/))]~
    then:
      function: pattern
      functionOptions:
        notMatch: ".*"

  schema-timestamp-naming:
    description: Timestamp properties should follow the createdAt/modifiedAt convention
    severity: info
    given: $.components.schemas[*].properties[?(@property.match(/^(created|modified|updated)[_-]?(date|time|on)$/i))]~
    then:
      function: pattern
      functionOptions:
        notMatch: ".*"

  schema-required-array:
    description: Required fields should be declared in a "required" array, not on individual properties
    severity: info
    given: $.components.schemas[*].properties[*]
    then:
      field: required
      function: falsy

  # =====================================================================
  # SECURITY
  # =====================================================================
  security-global-defined:
    description: Global security requirements should be defined
    severity: warn
    given: $
    then:
      field: security
      function: truthy

  security-schemes-defined:
    description: Security schemes must be defined under components
    severity: error
    given: $
    then:
      field: components.securitySchemes
      function: truthy

  security-bearer-scheme:
    description: Workday APIs should expose a BearerAuth scheme using Bearer/JWT
    severity: warn
    given: $.components.securitySchemes.BearerAuth
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          required:
            - type
            - scheme
          properties:
            type:
              const: http
            scheme:
              const: bearer

  security-bearer-format:
    description: Bearer security schemes should declare bearerFormat (e.g. JWT)
    severity: warn
    given: $.components.securitySchemes[?(@.scheme == 'bearer')]
    then:
      field: bearerFormat
      function: truthy

  security-scheme-description:
    description: Security schemes should have a description
    severity: warn
    given: $.components.securitySchemes[*]
    then:
      field: description
      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

  post-has-request-body:
    description: POST operations should have a request body
    severity: warn
    given: $.paths[*].post
    then:
      field: requestBody
      function: truthy

  put-has-request-body:
    description: PUT operations should have a request body
    severity: warn
    given: $.paths[*].put
    then:
      field: requestBody
      function: truthy

  patch-has-request-body:
    description: PATCH operations should have a request body
    severity: warn
    given: $.paths[*].patch
    then:
      field: requestBody
      function: truthy

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

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

  schema-properties-have-examples:
    description: Schema properties should include examples
    severity: info
    given: $.components.schemas[*].properties[?(@.type && @.type != 'object' && @.type != 'array')]
    then:
      field: example
      function: truthy

  deprecation-documented:
    description: Deprecated operations should explain the deprecation in the description
    severity: warn
    given: $.paths[*][get,post,put,patch,delete][?(@.deprecated == true)]
    then:
      field: description
      function: truthy

  external-docs-encouraged:
    description: APIs should link to external documentation
    severity: info
    given: $
    then:
      field: externalDocs
      function: truthy