# Restaurant365 Spectral Ruleset
# Enforces conventions observed across the R365 API and OData Connector OpenAPI specs.
# Apply with: spectral lint openapi/*.yml --ruleset rules/restaurant365-rules.yml
rules:

  # ── INFO / METADATA ─────────────────────────────────────────────
  info-title-required:
    description: API title must be present.
    severity: error
    given: $.info
    then:
      field: title
      function: truthy
  info-description-required:
    description: API description must be present and meaningful.
    severity: warn
    given: $.info
    then:
      field: description
      function: truthy
  info-version-required:
    description: API version must be present.
    severity: error
    given: $.info
    then:
      field: version
      function: truthy
  info-contact-required:
    description: API should declare a maintainer contact.
    severity: warn
    given: $.info
    then:
      field: contact
      function: truthy

  # ── OPENAPI VERSION ─────────────────────────────────────────────
  openapi-version-3-1:
    description: Specs should use 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: $
    then:
      field: servers
      function: truthy
  servers-https:
    description: Server URLs must use HTTPS.
    severity: error
    given: $.servers[*].url
    then:
      function: pattern
      functionOptions:
        match: '^https://'

  # ── OPERATIONS ──────────────────────────────────────────────────
  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-title-case:
    description: Operation summaries must use Title Case (each word capitalized).
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].summary
    then:
      function: pattern
      functionOptions:
        match: '^([A-Z0-9][A-Za-z0-9]*)(\s+([A-Z0-9][A-Za-z0-9]*|And|By|Or|The|Of|To))*$'
  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 declare an operationId.
    severity: error
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: operationId
      function: truthy
  operation-operationId-camel-case:
    description: operationId must be camelCase (e.g. listTransactions, createApInvoices).
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].operationId
    then:
      function: pattern
      functionOptions:
        match: '^[a-z][a-zA-Z0-9]*$'
  operation-tags-required:
    description: Every operation must be tagged.
    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 must use Title Case.
    severity: warn
    given: $.tags[*].name
    then:
      function: pattern
      functionOptions:
        match: '^[A-Z][A-Za-z0-9]*(\s+([A-Z][A-Za-z0-9]*|And|By|Or|Of|To))*$'

  # ── PARAMETERS ──────────────────────────────────────────────────
  parameter-description-required:
    description: Parameters should have descriptions.
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].parameters[*]
    then:
      field: description
      function: truthy
  odata-query-options-dollar-prefixed:
    description: OData system query options must be $-prefixed (e.g. $filter, $top).
    severity: info
    given: $.paths[*].get.parameters[?(@.in=='query')].name
    then:
      function: pattern
      functionOptions:
        match: '^\$'

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

  # ── RESPONSES ───────────────────────────────────────────────────
  response-success-defined:
    description: Each operation must define a 200 success response.
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      field: '200'
      function: truthy
  response-description-required:
    description: Every response must have a description.
    severity: error
    given: $.paths[*][get,post,put,patch,delete].responses[*]
    then:
      field: description
      function: truthy
  response-auth-error-defined:
    description: Authenticated write operations should document a 401 response.
    severity: info
    given: $.paths[*].post.responses
    then:
      field: '401'
      function: truthy

  # ── SCHEMAS ─────────────────────────────────────────────────────
  schema-property-types-defined:
    description: Schema properties must declare a type.
    severity: warn
    given: $.components.schemas[*].properties[*]
    then:
      field: type
      function: truthy
  schema-id-uuid-format:
    description: OData identifier properties ending in Id should be uuid-formatted.
    severity: info
    given: $.components.schemas[*].properties[?(@property.match(/Id$/))]
    then:
      field: format
      function: truthy

  # ── SECURITY ────────────────────────────────────────────────────
  security-schemes-defined:
    description: A securitySchemes block must be defined.
    severity: warn
    given: $.components
    then:
      field: securitySchemes
      function: truthy
  operation-write-secured:
    description: Record-creation POST operations must declare security.
    severity: warn
    given: $.paths[*].post
    then:
      field: security
      function: truthy