rules:
  # INFO / METADATA
  info-title-required:
    description: API title must be present.
    severity: error
    given: $.info
    then:
      field: title
      function: truthy

  info-title-prefix:
    description: API title must start with "Amadeus".
    severity: warn
    given: $.info.title
    then:
      function: pattern
      functionOptions:
        match: "^Amadeus"

  info-description-required:
    description: API must have a description.
    severity: error
    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

  # OPENAPI VERSION
  openapi-version-3:
    description: APIs must use OpenAPI 3.x.
    severity: error
    given: $
    then:
      field: openapi
      function: pattern
      functionOptions:
        match: "^3\\."

  # SERVERS
  servers-required:
    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://"

  servers-description:
    description: Each server should have a description.
    severity: warn
    given: $.servers[*]
    then:
      field: description
      function: truthy

  # PATHS — NAMING CONVENTIONS
  paths-kebab-case:
    description: Path segments must use kebab-case.
    severity: warn
    given: $.paths
    then:
      function: pattern
      functionOptions:
        match: "^(/[a-z0-9{}-]+)*$"

  paths-no-trailing-slash:
    description: Paths must not have trailing slashes.
    severity: error
    given: $.paths
    then:
      function: pattern
      functionOptions:
        notMatch: "/$"

  # 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-amadeus-prefix:
    description: Operation summaries must start with "Amadeus".
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].summary
    then:
      function: pattern
      functionOptions:
        match: "^Amadeus "

  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: $.paths[*][get,post,put,patch,delete].operationId
    then:
      function: pattern
      functionOptions:
        match: "^[a-z][a-zA-Z0-9]*$"

  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 include x-microcks-operation for mock compatibility.
    severity: info
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: x-microcks-operation
      function: truthy

  # PARAMETERS
  parameter-description-required:
    description: Every parameter must have a description.
    severity: error
    given: $.paths[*][*].parameters[*]
    then:
      field: description
      function: truthy

  parameter-schema-required:
    description: Every parameter must have a schema.
    severity: error
    given: $.paths[*][*].parameters[*]
    then:
      field: schema
      function: truthy

  parameter-snake-case:
    description: Parameter names should use snake_case or camelCase.
    severity: info
    given: $.paths[*][*].parameters[*].name
    then:
      function: pattern
      functionOptions:
        match: "^[a-z][a-zA-Z0-9_]*$"

  # RESPONSES
  response-success-required:
    description: Every operation must define at least one 2xx response.
    severity: error
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          minProperties: 1

  response-400-recommended:
    description: Operations should define a 400 error response.
    severity: info
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      field: '400'
      function: truthy

  response-401-recommended:
    description: Operations should define a 401 error response.
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      field: '401'
      function: truthy

  response-description-required:
    description: Every response must have a description.
    severity: error
    given: $.paths[*][*].responses[*]
    then:
      field: description
      function: truthy

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

  schema-property-type-required:
    description: Schema properties should define a type.
    severity: warn
    given: $.components.schemas[*].properties[*]
    then:
      field: type
      function: truthy

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

  security-bearer-described:
    description: BearerAuth security scheme should have a description.
    severity: warn
    given: $.components.securitySchemes.BearerAuth
    then:
      field: description
      function: truthy

  # 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

  # CONTENT TYPE
  response-json-content:
    description: Responses should use application/vnd.amadeus+json or application/json content type.
    severity: info
    given: $.paths[*][*].responses[*].content
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          minProperties: 1