rules:

  # INFO / METADATA
  info-title-required:
    description: Info title must be present and start with "Abstract API"
    severity: error
    given: '$.info'
    then:
      field: title
      function: pattern
      functionOptions:
        match: '^Abstract API'

  info-description-required:
    description: Info description must be present
    severity: error
    given: '$.info'
    then:
      field: description
      function: truthy

  info-version-required:
    description: Info version must be present
    severity: error
    given: '$.info'
    then:
      field: version
      function: truthy

  # OPENAPI VERSION
  openapi-version-3:
    description: Must use OpenAPI 3.0.x
    severity: error
    given: '$'
    then:
      field: openapi
      function: pattern
      functionOptions:
        match: '^3\.0\.'

  # SERVERS
  servers-required:
    description: At least one server must be defined
    severity: error
    given: '$'
    then:
      field: servers
      function: truthy

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

  servers-abstractapi-domain:
    description: Server URLs should be under abstractapi.com domain
    severity: warn
    given: '$.servers[*]'
    then:
      field: url
      function: pattern
      functionOptions:
        match: 'abstractapi\.com'

  # PATHS — NAMING CONVENTIONS
  paths-kebab-case:
    description: Path segments must use kebab-case (lowercase with hyphens)
    severity: warn
    given: '$.paths'
    then:
      field: '@key'
      function: pattern
      functionOptions:
        match: '^(\/[a-z0-9_\-\{\}]*)*$'

  paths-no-trailing-slash:
    description: Paths must not have trailing slashes (except root /)
    severity: warn
    given: '$.paths'
    then:
      field: '@key'
      function: pattern
      functionOptions:
        notMatch: '.+\/$'

  # 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-title-case:
    description: Operation summary must start with "Abstract API"
    severity: warn
    given: '$.paths[*][get,post,put,patch,delete]'
    then:
      field: summary
      function: pattern
      functionOptions:
        match: '^Abstract API'

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

  operation-id-required:
    description: Every operation must have an operationId
    severity: error
    given: '$.paths[*][get,post,put,patch,delete]'
    then:
      field: operationId
      function: truthy

  operation-id-camel-case:
    description: operationId must use 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 have at least one tag
    severity: error
    given: '$.paths[*][get,post,put,patch,delete]'
    then:
      field: tags
      function: truthy

  operation-microcks-extension:
    description: Operations should have x-microcks-operation extension for mock server compatibility
    severity: info
    given: '$.paths[*][get,post,put,patch,delete]'
    then:
      field: x-microcks-operation
      function: truthy

  # TAGS
  tags-title-case:
    description: Tags should use Title Case
    severity: warn
    given: '$.tags[*]'
    then:
      field: name
      function: pattern
      functionOptions:
        match: '^[A-Z]'

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

  parameter-api-key-query:
    description: Abstract API uses api_key as the query parameter name for authentication
    severity: warn
    given: '$.paths[*][get,post,put,patch,delete].parameters[?(@.name == "api_key")]'
    then:
      field: in
      function: enumeration
      functionOptions:
        values:
          - query
          - header

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

  parameter-example-recommended:
    description: Parameters should have example values
    severity: info
    given: '$.paths[*][get,post,put,patch,delete].parameters[*]'
    then:
      field: example
      function: truthy

  # RESPONSES
  response-success-required:
    description: Every operation must have a 2xx success response
    severity: error
    given: '$.paths[*][get,post,put,patch,delete].responses'
    then:
      function: schema
      functionOptions:
        schema:
          anyOf:
            - required: ['200']
            - required: ['201']
            - required: ['204']

  response-401-required:
    description: Operations secured with API key should document 401 response
    severity: warn
    given: '$.paths[*][get,post,put,patch,delete].responses'
    then:
      field: '401'
      function: truthy

  response-429-recommended:
    description: Rate-limited APIs should document 429 response
    severity: info
    given: '$.paths[*][get,post,put,patch,delete].responses'
    then:
      field: '429'
      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

  # SCHEMAS — PROPERTY NAMING
  schema-property-description:
    description: Schema properties should have descriptions
    severity: info
    given: '$.components.schemas[*].properties[*]'
    then:
      field: description
      function: truthy

  schema-property-example:
    description: Schema properties should have example values
    severity: info
    given: '$.components.schemas[*].properties[*]'
    then:
      field: example
      function: truthy

  schema-top-level-description:
    description: Top-level schemas should have descriptions
    severity: warn
    given: '$.components.schemas[*]'
    then:
      field: description
      function: truthy

  # SECURITY
  security-schemes-defined:
    description: Security schemes must be defined in components
    severity: error
    given: '$'
    then:
      field: components.securitySchemes
      function: truthy

  security-api-key-scheme:
    description: Abstract API uses apiKey security scheme
    severity: warn
    given: '$.components.securitySchemes[*]'
    then:
      field: type
      function: enumeration
      functionOptions:
        values:
          - apiKey
          - http

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

  delete-no-request-body:
    description: DELETE operations should not have a request body
    severity: warn
    given: '$.paths[*].delete'
    then:
      field: requestBody
      function: falsy

  # GENERAL QUALITY
  no-empty-descriptions:
    description: Descriptions must not be empty strings
    severity: error
    given: '$..description'
    then:
      function: pattern
      functionOptions:
        match: '.+'

  generated-from-docs-marked:
    description: Generated specs should be marked with x-generated-from
    severity: info
    given: '$.info'
    then:
      field: x-generated-from
      function: truthy