# ItsaCheckmate Marketplace for Developers API Spectral Ruleset
# Enforces conventions observed in the ItsaCheckmate Marketplace API OpenAPI specification:
# - Title prefix "ItsaCheckmate ..."
# - /api/v2 versioned resource paths plus /oauth token endpoints
# - snake_case parameters and schema properties
# - camelCase operationIds with verb prefixes
# - OAuth-style bearer (scoped access token) security
# - Title Case tags and operation summaries
extends: []
rules:

  # ── INFO / METADATA ────────────────────────────────────────────────
  info-title-required:
    description: API must have a title.
    given: $.info
    severity: error
    then:
      field: title
      function: truthy
  info-title-prefix:
    description: Title should start with "ItsaCheckmate".
    given: $.info.title
    severity: warn
    then:
      function: pattern
      functionOptions:
        match: '^ItsaCheckmate'
  info-description-required:
    description: API must have a non-trivial description.
    given: $.info
    severity: warn
    then:
      field: description
      function: truthy
  info-version-required:
    description: API must declare a version.
    given: $.info
    severity: error
    then:
      field: version
      function: truthy
  info-contact-required:
    description: API should provide contact information.
    given: $.info
    severity: info
    then:
      field: contact
      function: truthy

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

  # ── SERVERS ────────────────────────────────────────────────────────
  servers-defined:
    description: At least one server must be defined.
    given: $.servers
    severity: error
    then:
      function: length
      functionOptions:
        min: 1
  servers-https:
    description: Server URLs must use HTTPS.
    given: $.servers[*].url
    severity: error
    then:
      function: pattern
      functionOptions:
        match: '^https://'
  server-itsacheckmate-host:
    description: Server should be an itsacheckmate.com host.
    given: $.servers[*].url
    severity: info
    then:
      function: pattern
      functionOptions:
        match: 'itsacheckmate\.com'

  # ── PATHS — NAMING CONVENTIONS ─────────────────────────────────────
  paths-version-prefix:
    description: Resource paths should be versioned under /api/v2 (OAuth token endpoints are the exception).
    given: $.paths[?(!@property.match(/^\/oauth/))]~
    severity: warn
    then:
      function: pattern
      functionOptions:
        match: '^/api/v2/'
  paths-snake-case:
    description: Path segments must be snake_case or kebab-case (no camelCase or PascalCase).
    given: $.paths[*]~
    severity: warn
    then:
      function: pattern
      functionOptions:
        match: '^(/[a-z0-9_\-]+|/\{[a-z0-9_]+\})*/?$'
  paths-no-trailing-slash:
    description: Paths must not end with a trailing slash.
    given: $.paths[*]~
    severity: error
    then:
      function: pattern
      functionOptions:
        notMatch: '.+/$'
  paths-no-query-string:
    description: Paths must not contain query strings.
    given: $.paths[*]~
    severity: error
    then:
      function: pattern
      functionOptions:
        notMatch: '\?'

  # ── OPERATIONS ─────────────────────────────────────────────────────
  operation-operationid-required:
    description: Every operation must have an operationId.
    given: $.paths[*][get,post,put,patch,delete]
    severity: error
    then:
      field: operationId
      function: truthy
  operation-operationid-camelcase-verb:
    description: operationId should be camelCase and begin with a verb.
    given: $.paths[*][get,post,put,patch,delete].operationId
    severity: warn
    then:
      function: pattern
      functionOptions:
        match: '^(list|get|retrieve|create|update|put|delete|submit|activate|refresh|fetch)[A-Za-z0-9]*$'
  operation-summary-required:
    description: Every operation must have a summary.
    given: $.paths[*][get,post,put,patch,delete]
    severity: warn
    then:
      field: summary
      function: truthy
  operation-summary-prefix:
    description: Operation summaries should begin with "ItsaCheckmate".
    given: $.paths[*][get,post,put,patch,delete].summary
    severity: info
    then:
      function: pattern
      functionOptions:
        match: '^ItsaCheckmate'
  operation-tags-required:
    description: Every operation must be tagged.
    given: $.paths[*][get,post,put,patch,delete]
    severity: warn
    then:
      field: tags
      function: truthy

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

  # ── PARAMETERS ─────────────────────────────────────────────────────
  parameter-description-required:
    description: Parameters should have descriptions.
    given: $..parameters[*]
    severity: info
    then:
      field: description
      function: truthy
  parameter-snake-case:
    description: Parameter names should be snake_case (header names like accept permitted).
    given: $..parameters[?(@.in=='query' || @.in=='path')].name
    severity: warn
    then:
      function: pattern
      functionOptions:
        match: '^[a-z][a-z0-9_]*$'

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

  # ── RESPONSES ──────────────────────────────────────────────────────
  response-success-required:
    description: Every operation must define at least one 2xx response.
    given: $.paths[*][get,post,put,patch,delete].responses
    severity: error
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          patternProperties:
            '^2[0-9][0-9]$': {}
          minProperties: 1
  response-description-required:
    description: Responses must have descriptions.
    given: $.paths[*][*].responses[*]
    severity: warn
    then:
      field: description
      function: truthy
  response-auth-error:
    description: Secured operations should document a 401 response.
    given: $.paths[*][get,post,put,patch,delete].responses
    severity: info
    then:
      field: '401'
      function: truthy

  # ── SCHEMAS — PROPERTY NAMING ──────────────────────────────────────
  schema-property-snake-case:
    description: Schema properties should be snake_case.
    given: $.components.schemas[*].properties[*]~
    severity: warn
    then:
      function: pattern
      functionOptions:
        match: '^[a-z][a-z0-9_]*$'
  schema-title-required:
    description: Top-level schemas should declare a title.
    given: $.components.schemas[*]
    severity: info
    then:
      field: title
      function: truthy
  schema-types-defined:
    description: Schema properties should declare a type or $ref.
    given: $.components.schemas[*].properties[*]
    severity: info
    then:
      function: defined

  # ── SECURITY ───────────────────────────────────────────────────────
  security-schemes-defined:
    description: Security schemes must be defined.
    given: $.components.securitySchemes
    severity: error
    then:
      function: truthy
  security-bearer-present:
    description: A bearer (scoped access token) security scheme should be present.
    given: $.components.securitySchemes
    severity: warn
    then:
      field: bearerAuth
      function: truthy

  # ── HTTP METHOD CONVENTIONS ────────────────────────────────────────
  get-no-request-body:
    description: GET operations must not declare a request body.
    given: $.paths[*].get
    severity: error
    then:
      field: requestBody
      function: undefined
  post-has-request-body:
    description: POST operations should declare a request body.
    given: $.paths[*].post
    severity: info
    then:
      field: requestBody
      function: truthy