# Deliverect API Spectral Ruleset
# Opinionated rules derived from the Deliverect POS, Commerce, Channel, Dispatch,
# Store, Pay, CRM, Loyalty, KDS, and Gift Cards OpenAPI specifications.
# Conventions observed: OpenAPI 3.1, OAuth 2.0 bearer security, camelCase parameters
# and operationIds, Title Case tags, "Deliverect ..." summary prefix.

extends: []

rules:

  # ── INFO / METADATA ───────────────────────────────────────────────
  info-title-deliverect-prefix:
    description: API title should start with "Deliverect".
    severity: warn
    given: $.info.title
    then:
      function: pattern
      functionOptions:
        match: "^Deliverect"

  info-description-required:
    description: Info object must have a non-empty description.
    severity: warn
    given: $.info
    then:
      field: description
      function: truthy

  info-version-required:
    description: Info object must declare a version.
    severity: error
    given: $.info
    then:
      field: version
      function: truthy

  info-contact-required:
    description: A contact should be provided.
    severity: info
    given: $.info
    then:
      field: contact
      function: truthy

  # ── OPENAPI VERSION ───────────────────────────────────────────────
  openapi-version-3-1:
    description: Specs should target OpenAPI 3.1.x.
    severity: warn
    given: $.openapi
    then:
      function: pattern
      functionOptions:
        match: "^3\\.1\\."

  # ── SERVERS ───────────────────────────────────────────────────────
  servers-defined:
    description: At least one server must be defined.
    severity: error
    given: $.servers
    then:
      function: schema
      functionOptions:
        schema:
          type: array
          minItems: 1

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

  servers-deliverect-host:
    description: Production/staging hosts should be on the deliverect.com domain.
    severity: info
    given: $.servers[*].url
    then:
      function: pattern
      functionOptions:
        match: "deliverect\\.com"

  # ── PATHS ─────────────────────────────────────────────────────────
  path-no-trailing-slash:
    description: Paths should not end with a trailing slash.
    severity: warn
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        notMatch: ".+/$"

  path-no-double-slash:
    description: Paths must not contain a double slash.
    severity: error
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        notMatch: "//"

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

  # ── OPERATIONS ────────────────────────────────────────────────────
  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-unique:
    description: operationId values must be unique across the document.
    severity: error
    given: $
    then:
      function: oasOpIdUnique

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

  operation-summary-deliverect-prefix:
    description: Operation summaries should start with "Deliverect".
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].summary
    then:
      function: pattern
      functionOptions:
        match: "^Deliverect "

  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-tags-required:
    description: Every operation must be tagged.
    severity: warn
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: tags
      function: truthy

  operation-microcks-extension:
    description: Operations should carry the x-microcks-operation extension for mocking.
    severity: info
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: x-microcks-operation
      function: truthy

  # ── TAGS ──────────────────────────────────────────────────────────
  tags-global-defined:
    description: A global tags array should be declared.
    severity: info
    given: $
    then:
      field: tags
      function: truthy

  tag-title-case:
    description: Tag names should use Title Case.
    severity: warn
    given: $.tags[*].name
    then:
      function: pattern
      functionOptions:
        match: "^[A-Z][A-Za-z0-9]*( [A-Z][A-Za-z0-9]*)*$"

  tag-description:
    description: Global tags should have a description.
    severity: info
    given: $.tags[*]
    then:
      field: description
      function: truthy

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

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

  parameter-camelcase:
    description: Parameter names should use camelCase (Deliverect convention, e.g. channelLinkId, accountId).
    severity: info
    given: $.paths[*][get,post,put,patch,delete].parameters[?(@.in=='path' || @.in=='query')].name
    then:
      function: pattern
      functionOptions:
        match: "^[a-z][a-zA-Z0-9]*$|^_"

  # ── REQUEST BODIES ────────────────────────────────────────────────
  request-body-json-content:
    description: Request bodies should offer application/json content.
    severity: warn
    given: $.paths[*][post,put,patch].requestBody.content
    then:
      field: application/json
      function: truthy

  # ── RESPONSES ─────────────────────────────────────────────────────
  response-success-defined:
    description: Operations must define at least one 2xx response.
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          anyOf:
            - required: ['200']
            - required: ['201']
            - required: ['202']
            - required: ['204']

  response-unauthorized-defined:
    description: Operations should document a 401 response (OAuth tokens can be rejected).
    severity: info
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      field: '401'
      function: truthy

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

  # ── SECURITY ──────────────────────────────────────────────────────
  security-global-defined:
    description: A global security requirement should be declared (OAuth 2.0).
    severity: warn
    given: $
    then:
      field: security
      function: truthy

  security-oauth2-scheme:
    description: An OAuth 2.0 security scheme should be defined in components.
    severity: warn
    given: $.components.securitySchemes
    then:
      field: oauth2
      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

  # ── GENERAL QUALITY ───────────────────────────────────────────────
  schema-property-examples:
    description: Encourage examples on schema properties for richer mocks.
    severity: info
    given: $.paths[*][get,post,put,patch,delete].responses[*].content.application/json.schema.properties[*]
    then:
      field: example
      function: truthy