# Spectral Ruleset for Amazon ElastiCache
# Enforces API design conventions for Amazon ElastiCache APIs

rules:
  # INFO / METADATA
  info-title-required:
    description: OpenAPI info must have a title.
    severity: error
    given: "$.info"
    then:
      field: title
      function: truthy

  info-description-required:
    description: OpenAPI info must have a description.
    severity: warn
    given: "$.info"
    then:
      field: description
      function: truthy

  info-version-required:
    description: OpenAPI info must have a version.
    severity: error
    given: "$.info"
    then:
      field: version
      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-required:
    description: OpenAPI must define at least one server.
    severity: error
    given: "$"
    then:
      field: servers
      function: truthy

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

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

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

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

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

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

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

  # RESPONSES
  operation-success-response-required:
    description: All operations must define at least one 2xx response.
    severity: error
    given: "$.paths[*][get,post,put,patch,delete,head,options].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,head,options].responses[*]"
    then:
      field: description
      function: truthy

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

  # SCHEMAS
  schema-properties-have-types:
    description: Schema properties should specify a type.
    severity: warn
    given: "$.components.schemas[*].properties[*]"
    then:
      field: type
      function: truthy

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

  # HTTP METHODS
  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: warn
    given: "$..description"
    then:
      function: truthy