extends: spectral:oas
rules:
  # Require operationId
  operation-operationId:
    description: All operations must have an operationId.
    severity: error
    given: "$.paths[*][get,post,put,patch,delete]"
    then:
      field: operationId
      function: truthy

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

  # Enforce Title Case on summaries
  operation-summary-title-case:
    description: Operation summaries must use Title Case.
    severity: warn
    given: "$.paths[*][get,post,put,patch,delete].summary"
    then:
      function: pattern
      functionOptions:
        match: "^[A-Z][a-zA-Z0-9 ]*$"

  # Require tags on all operations
  operation-tags:
    description: All operations must have at least one tag.
    severity: warn
    given: "$.paths[*][get,post,put,patch,delete]"
    then:
      field: tags
      function: truthy

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

  # Products must include SUPC field
  product-supc-field:
    description: Product schema must include a productId (SUPC) field.
    severity: error
    given: "$.components.schemas.Product.properties"
    then:
      field: productId
      function: truthy

  # Orders must include deliveryDate
  order-delivery-date:
    description: Order schema must include a deliveryDate field.
    severity: error
    given: "$.components.schemas.Order.properties"
    then:
      field: deliveryDate
      function: truthy

  # Order items must have required quantity
  order-item-quantity:
    description: OrderItem schema must include a quantity field.
    severity: error
    given: "$.components.schemas.OrderItem.properties"
    then:
      field: quantity
      function: truthy

  # List operations must support pagination
  list-pagination-page:
    description: List operations should support page parameter for pagination.
    severity: warn
    given: "$.paths[*].get"
    then:
      field: parameters
      function: truthy

  # Response schemas should be referenced
  response-schema-ref:
    description: Response schemas should use $ref for maintainability.
    severity: info
    given: "$.paths[*][*].responses['200'].content['application/json'].schema"
    then:
      function: truthy

  # POST operations must have request body
  post-request-body:
    description: POST operations must include a request body.
    severity: error
    given: "$.paths[*].post"
    then:
      field: requestBody
      function: truthy

  # Paths must use kebab-case
  paths-kebab-case:
    description: Path segments must use kebab-case (lowercase with hyphens).
    severity: warn
    given: "$.paths"
    then:
      function: pattern
      functionOptions:
        match: "^(/[a-z0-9{}-]+)+$"

  # Delivery tracking should include estimatedArrival
  delivery-eta-field:
    description: Delivery schema should include estimatedArrival for tracking.
    severity: warn
    given: "$.components.schemas.Delivery.properties"
    then:
      field: estimatedArrival
      function: truthy