# Clover API Spectral Ruleset
# Opinionated rules enforcing the conventions observed across the Clover
# Platform REST API (v3) and Clover Ecommerce API (v1) OpenAPI specifications.
# Generated by the API Evangelist profiling pipeline.

extends: [[spectral:oas, off]]

rules:

  # ---------- INFO / METADATA ----------
  info-title-clover-prefix:
    description: API title should start with "Clover".
    severity: warn
    given: $.info
    then:
      field: title
      function: pattern
      functionOptions:
        match: "^Clover"
  info-description-required:
    description: Info must have a description of reasonable length.
    severity: warn
    given: $.info
    then:
      field: description
      function: truthy
  info-version-required:
    description: Info must declare a version.
    severity: error
    given: $.info
    then:
      field: version
      function: truthy
  info-contact-required:
    description: Info should include contact information.
    severity: info
    given: $.info
    then:
      field: contact
      function: truthy

  # ---------- OPENAPI VERSION ----------
  openapi-version-3-1:
    description: Specs should target OpenAPI 3.1.0.
    severity: warn
    given: $
    then:
      field: openapi
      function: pattern
      functionOptions:
        match: "^3\\.1\\."

  # ---------- SERVERS ----------
  servers-defined:
    description: At least one server must be defined.
    severity: error
    given: $
    then:
      field: servers
      function: truthy
  servers-https-only:
    description: Server URLs must use HTTPS.
    severity: error
    given: $.servers[*]
    then:
      field: url
      function: pattern
      functionOptions:
        match: "^https://"
  server-description-required:
    description: Each server should have a description (Production, Sandbox, region).
    severity: info
    given: $.servers[*]
    then:
      field: description
      function: truthy

  # ---------- PATHS ----------
  paths-version-prefix:
    description: Paths should carry a version prefix (/v3 for Platform, /v1 for Ecommerce).
    severity: warn
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        match: "^/(v1|v3|invoicingcheckoutservice)"
  paths-no-trailing-slash:
    description: Paths must not end with a trailing slash.
    severity: error
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        notMatch: ".+/$"
  paths-no-query-string:
    description: Paths must not contain a query string.
    severity: error
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        notMatch: "\\?"

  # ---------- OPERATIONS ----------
  operation-summary-required:
    description: Every operation must have a summary.
    severity: error
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: summary
      function: truthy
  operation-summary-clover-prefix:
    description: Operation summaries should begin with the provider name "Clover".
    severity: warn
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: summary
      function: pattern
      functionOptions:
        match: "^Clover "
  operation-description-required:
    description: Every operation must have a description.
    severity: warn
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: description
      function: truthy
  operation-operationid-required:
    description: Every operation must have an operationId.
    severity: error
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: operationId
      function: truthy
  operation-operationid-camelcase:
    description: operationId should be camelCase.
    severity: warn
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: operationId
      function: pattern
      functionOptions:
        match: "^[a-z][a-zA-Z0-9]+$"
  operation-tags-required:
    description: Every operation must declare at least one tag.
    severity: warn
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: tags
      function: truthy

  # ---------- TAGS ----------
  tag-description-required:
    description: Global tags should have descriptions.
    severity: info
    given: $.tags[*]
    then:
      field: description
      function: truthy
  tag-title-case:
    description: Tag names should be Title Case.
    severity: warn
    given: $.tags[*]
    then:
      field: name
      function: pattern
      functionOptions:
        match: "^[A-Z][A-Za-z0-9]*( [A-Z][A-Za-z0-9]*)*$"

  # ---------- PARAMETERS ----------
  parameter-description-required:
    description: Parameters should have descriptions.
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].parameters[*]
    then:
      field: description
      function: truthy
  parameter-schema-typed:
    description: Parameters must define a schema with a type.
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].parameters[*].schema
    then:
      field: type
      function: truthy

  # ---------- RESPONSES ----------
  response-success-defined:
    description: Operations should define a 2xx success response.
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      field: "200"
      function: truthy
  response-429-documented:
    description: Operations should document a 429 (rate limit) response.
    severity: info
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      field: "429"
      function: truthy
  response-description-required:
    description: Each response must have a description.
    severity: error
    given: $.paths[*][*].responses[*]
    then:
      field: description
      function: truthy

  # ---------- SCHEMAS ----------
  schema-types-defined:
    description: Component schemas should define a type.
    severity: warn
    given: $.components.schemas[*]
    then:
      field: type
      function: truthy

  # ---------- SECURITY ----------
  security-global-defined:
    description: A global security requirement should be declared.
    severity: warn
    given: $
    then:
      field: security
      function: truthy
  security-schemes-defined:
    description: Security schemes must be defined in components.
    severity: error
    given: $.components
    then:
      field: securitySchemes
      function: truthy

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