Terrain Discovery Environment API API Rules

extends: spectral:oas
rules:
  terrain-operation-ids-present:
    description: All operations must have operationId defined
    message: "Operation at {{path}} is missing operationId"
    severity: error
    given: "$.paths.*[get,post,put,patch,delete]"
    then:
      field: operationId
      function: truthy

  terrain-operation-id-pascal-case:
    description: Operation IDs should use PascalCase
    message: "Operation ID '{{value}}' should use PascalCase"
    severity: warn
    given: "$.paths.*[get,post,put,patch,delete].operationId"
    then:
      function: pattern
      functionOptions:
        match: "^[A-Z][A-Za-z0-9]+$"

  terrain-secured-paths:
    description: Authenticated endpoints should be under /secured prefix
    message: "Authenticated endpoints should use /secured path prefix"
    severity: info
    given: "$.paths"
    then:
      function: schema
      functionOptions:
        schema:
          type: object

  terrain-tags-required:
    description: Each operation should have at least one tag
    message: "Operation at {{path}} should have at least one tag"
    severity: warn
    given: "$.paths.*[get,post,put,patch,delete]"
    then:
      field: tags
      function: truthy

  terrain-parameter-descriptions:
    description: Parameters should have descriptions
    message: "Parameter is missing a description"
    severity: warn
    given: "$.paths..parameters[*]"
    then:
      field: description
      function: truthy

  terrain-json-responses:
    description: Endpoints should return application/json responses
    message: "Response should use application/json content type"
    severity: warn
    given: "$.paths.*[get,post,put,patch,delete].responses.*.content"
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          properties:
            "application/json":
              type: object

  terrain-jwt-auth:
    description: Terrain uses JWT bearer token or X-Iplant-De-Jwt header authentication
    message: "Security schemes should use bearer JWT or apiKey header"
    severity: info
    given: "$.components.securitySchemes.*"
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          anyOf:
            - properties:
                type:
                  const: http
                scheme:
                  const: bearer
            - properties:
                type:
                  const: apiKey
                in:
                  const: header

  terrain-kebab-path-params:
    description: Path parameter names should use kebab-case
    message: "Path parameter '{{value}}' should use kebab-case"
    severity: warn
    given: "$.paths..parameters[?(@.in == 'path')].name"
    then:
      function: pattern
      functionOptions:
        match: "^[a-z][a-z0-9-]+$"