# Paytronix Spectral Ruleset
# Generated from the Paytronix Server (PXS) API and Online Ordering (Open Dining) API
# OpenAPI specifications. Enforces the conventions observed across these specs:
#   - Title prefix "Paytronix ..."
#   - Title Case operation summaries
#   - camelCase operationIds with verb prefixes (get/create/update/delete/...)
#   - Title Case tag names
#   - HTTP Basic / OAuth bearer security
#   - JSON request/response bodies with a result envelope
extends: [[spectral:oas, off]]
rules:

  # ── INFO / METADATA ─────────────────────────────────────────────
  info-title-paytronix-prefix:
    description: API title should begin with "Paytronix".
    severity: warn
    given: $.info.title
    then:
      function: pattern
      functionOptions:
        match: '^Paytronix'
  info-description-required:
    description: Info object must have a non-trivial description.
    severity: warn
    given: $.info
    then:
      field: description
      function: defined
  info-version-required:
    description: Info object must declare a version.
    severity: error
    given: $.info
    then:
      field: version
      function: defined
  info-contact-required:
    description: Info object should declare a contact.
    severity: info
    given: $.info
    then:
      field: contact
      function: defined

  # ── OPENAPI VERSION ─────────────────────────────────────────────
  openapi-version-3:
    description: Specs should target OpenAPI 3.0.x.
    severity: warn
    given: $.openapi
    then:
      function: pattern
      functionOptions:
        match: '^3\.0\.'

  # ── SERVERS ─────────────────────────────────────────────────────
  servers-defined:
    description: At least one server must be defined.
    severity: error
    given: $
    then:
      field: servers
      function: defined
  server-https:
    description: Server URLs must use HTTPS.
    severity: warn
    given: $.servers[*].url
    then:
      function: pattern
      functionOptions:
        match: '^https://'
  server-description:
    description: Each server should have a description.
    severity: info
    given: $.servers[*]
    then:
      field: description
      function: defined

  # ── OPERATIONS ──────────────────────────────────────────────────
  operation-summary-required:
    description: Every operation must have a summary.
    severity: warn
    given: $.paths[*][get,post,put,delete,patch]
    then:
      field: summary
      function: defined
  operation-summary-title-case:
    description: Operation summaries must use Title Case (each word capitalized).
    severity: warn
    given: $.paths[*][get,post,put,delete,patch].summary
    then:
      function: pattern
      functionOptions:
        match: '^([A-Z0-9][A-Za-z0-9]*)(\s+(?:[A-Z0-9][A-Za-z0-9]*|And|Or|By|For|To|In|Of|The|A|An))*$'
  operation-description-required:
    description: Every operation must have a description.
    severity: warn
    given: $.paths[*][get,post,put,delete,patch]
    then:
      field: description
      function: defined
  operation-operationid-required:
    description: Every operation must have an operationId.
    severity: error
    given: $.paths[*][get,post,put,delete,patch]
    then:
      field: operationId
      function: defined
  operation-operationid-camelcase:
    description: operationId must be camelCase.
    severity: warn
    given: $.paths[*][get,post,put,delete,patch].operationId
    then:
      function: pattern
      functionOptions:
        match: '^[a-z][a-zA-Z0-9]*$'
  operation-operationid-verb-prefix:
    description: operationId should start with a known verb prefix.
    severity: info
    given: $.paths[*][get,post,put,delete,patch].operationId
    then:
      function: pattern
      functionOptions:
        match: '^(get|list|create|update|delete|add|redeem|sell|reload|recharge|activate|register|request|search|compute|post|change|query|balance|reverse|exchange|cash)'
  operation-tags-required:
    description: Every operation must declare at least one tag.
    severity: warn
    given: $.paths[*][get,post,put,delete,patch]
    then:
      field: tags
      function: truthy
  operation-microcks-extension:
    description: Each operation should carry an x-microcks-operation extension for mock compatibility.
    severity: info
    given: $.paths[*][get,post,put,delete,patch]
    then:
      field: x-microcks-operation
      function: defined

  # ── TAGS ────────────────────────────────────────────────────────
  tags-global-defined:
    description: A global tags array must be defined.
    severity: warn
    given: $
    then:
      field: tags
      function: truthy
  tag-description:
    description: Each global tag should have a description.
    severity: info
    given: $.tags[*]
    then:
      field: description
      function: defined
  tag-title-case:
    description: Tag names must use Title Case.
    severity: warn
    given: $.tags[*].name
    then:
      function: pattern
      functionOptions:
        match: '^[A-Z][A-Za-z0-9]*(\s+[A-Z][A-Za-z0-9]*)*$'

  # ── PARAMETERS ──────────────────────────────────────────────────
  parameter-description-required:
    description: Every parameter must have a description.
    severity: warn
    given: $.paths[*][get,post,put,delete,patch].parameters[*]
    then:
      field: description
      function: defined
  parameter-schema-typed:
    description: Every parameter schema must declare a type.
    severity: warn
    given: $.paths[*][get,post,put,delete,patch].parameters[*].schema
    then:
      field: type
      function: defined
  parameter-camelcase:
    description: Query and path parameter names should be camelCase (PXS) or snake_case (Open Dining search).
    severity: info
    given: $.paths[*][get,post,put,delete,patch].parameters[*].name
    then:
      function: pattern
      functionOptions:
        match: '^[a-z][a-zA-Z0-9_]*$'

  # ── REQUEST BODIES ──────────────────────────────────────────────
  request-body-json:
    description: Request bodies should provide an application/json media type.
    severity: warn
    given: $.paths[*][post,put,patch].requestBody.content
    then:
      field: application/json
      function: defined
  request-body-schema:
    description: Request body JSON media type must reference a schema.
    severity: warn
    given: $.paths[*][post,put,patch].requestBody.content.application/json
    then:
      field: schema
      function: truthy

  # ── RESPONSES ───────────────────────────────────────────────────
  response-2xx-required:
    description: Every operation must define a 2xx success response.
    severity: error
    given: $.paths[*][get,post,put,delete,patch].responses
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          anyOf:
            - required: ['200']
            - required: ['201']
            - required: ['204']
  response-description-required:
    description: Every response must have a description.
    severity: warn
    given: $.paths[*][get,post,put,delete,patch].responses[*]
    then:
      field: description
      function: defined
  response-json-content:
    description: 2xx responses should provide application/json content.
    severity: info
    given: $.paths[*][get,post,put,delete,patch].responses[200,201].content
    then:
      field: application/json
      function: defined

  # ── SCHEMAS — PROPERTY NAMING ───────────────────────────────────
  schema-property-typed:
    description: Schema properties should declare a type, $ref, or composition.
    severity: info
    given: $.components.schemas[*].properties[*]
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          anyOf:
            - required: [type]
            - required: ['$ref']
            - required: [allOf]
            - required: [oneOf]
            - required: [anyOf]
            - required: [additionalProperties]
  schema-property-camelcase:
    description: Schema property names should be camelCase (PXS convention).
    severity: info
    given: $.components.schemas[*].properties.*~
    then:
      function: pattern
      functionOptions:
        match: '^[a-z][a-zA-Z0-9_]*$'

  # ── SECURITY ────────────────────────────────────────────────────
  security-schemes-defined:
    description: components.securitySchemes should be defined where the API requires auth.
    severity: info
    given: $.components
    then:
      field: securitySchemes
      function: defined
  security-scheme-described:
    description: Each security scheme should have a description.
    severity: info
    given: $.components.securitySchemes[*]
    then:
      field: description
      function: defined

  # ── 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: undefined
  delete-no-request-body:
    description: DELETE operations should not declare a request body.
    severity: warn
    given: $.paths[*].delete
    then:
      field: requestBody
      function: undefined