extends: spectral:oas

rules:
  # INFO / METADATA
  info-title-matches-provider:
    description: API title should include the provider name (Amazon DocumentDB).
    severity: warn
    given: "$.info"
    then:
      field: title
      function: pattern
      functionOptions:
        match: "^Amazon DocumentDB"

  info-description-required:
    description: API info must include a description.
    severity: error
    given: "$.info"
    then:
      field: description
      function: truthy

  info-version-required:
    description: API version must be defined.
    severity: error
    given: "$.info"
    then:
      field: version
      function: truthy

  info-contact-required:
    description: API info should include contact information.
    severity: warn
    given: "$.info"
    then:
      field: contact
      function: truthy

  info-license-required:
    description: API info should include license information.
    severity: warn
    given: "$.info"
    then:
      field: license
      function: truthy

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

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

  servers-https:
    description: Server URLs should use HTTPS.
    severity: warn
    given: "$.servers[*]"
    then:
      field: url
      function: pattern
      functionOptions:
        match: "^https://"

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

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

  operation-summary-provider-prefix:
    description: Operation summary should begin with the provider name (Amazon DocumentDB).
    severity: warn
    given: "$.paths[*][get,post,put,patch,delete,head,options]"
    then:
      field: summary
      function: pattern
      functionOptions:
        match: "^Amazon DocumentDB"

  operation-description-required:
    description: Every operation should have a description.
    severity: warn
    given: "$.paths[*][get,post,put,patch,delete,head,options]"
    then:
      field: description
      function: truthy

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

  operation-id-camel-case:
    description: OperationId should use camelCase.
    severity: warn
    given: "$.paths[*][get,post,put,patch,delete,head,options]"
    then:
      field: operationId
      function: pattern
      functionOptions:
        match: "^[a-z][a-zA-Z0-9]*$"

  operation-tags-required:
    description: Every operation must have at least one tag.
    severity: error
    given: "$.paths[*][get,post,put,patch,delete,head,options]"
    then:
      field: tags
      function: truthy

  # TAGS
  tags-global-defined:
    description: Global tags array should be defined.
    severity: warn
    given: "$"
    then:
      field: tags
      function: truthy

  tag-description-required:
    description: Each global tag should have a description.
    severity: info
    given: "$.tags[*]"
    then:
      field: description
      function: truthy

  # PARAMETERS
  parameter-description-required:
    description: All parameters must have a description.
    severity: warn
    given: "$..parameters[*]"
    then:
      field: description
      function: truthy

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

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

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

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

  schema-type-defined:
    description: Schemas should define a type.
    severity: warn
    given: "$.components.schemas[*]"
    then:
      field: type
      function: truthy

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

  # HTTP METHOD CONVENTIONS
  get-no-request-body:
    description: GET operations should 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 should not be empty strings.
    severity: warn
    given: "$..description"
    then:
      function: pattern
      functionOptions:
        match: ".+"

  examples-encouraged:
    description: Operations should include examples for better documentation.
    severity: info
    given: "$.paths[*][get,post,put,patch,delete]"
    then:
      field: responses
      function: truthy