extends: spectral:oas
rules:

  # SAM.gov API key is required on all operations
  sam-gov-api-key-required:
    description: SAM.gov APIs require an api_key query parameter
    message: "Operation '{{path}}' must include an api_key query parameter"
    given: "$.paths[*][get,post,put,patch,delete]"
    then:
      - field: parameters
        function: truthy
    severity: error

  # All operations must have summaries in Title Case
  sam-gov-summary-title-case:
    description: Operation summaries must use Title Case
    message: "Summary '{{value}}' should use Title Case"
    given: "$.paths[*][*].summary"
    then:
      function: pattern
      functionOptions:
        match: "^[A-Z]"
    severity: warn

  # All operations must have descriptions
  sam-gov-operation-description:
    description: Operations must have descriptions
    message: "Operation at '{{path}}' must have a description"
    given: "$.paths[*][get,post,put,patch,delete]"
    then:
      - field: description
        function: truthy
    severity: warn

  # Responses must be defined
  sam-gov-responses-required:
    description: Operations must define responses
    message: "Operation at '{{path}}' must define responses"
    given: "$.paths[*][get,post,put,patch,delete]"
    then:
      - field: responses
        function: truthy
    severity: error

  # GET operations should return 200
  sam-gov-get-200-response:
    description: GET operations must define a 200 response
    message: "GET operation at '{{path}}' should have a 200 response"
    given: "$.paths[*].get"
    then:
      - field: responses.200
        function: truthy
    severity: warn

  # Operations must have tags
  sam-gov-operation-tags:
    description: Operations must have at least one tag
    message: "Operation at '{{path}}' must have at least one tag"
    given: "$.paths[*][get,post,put,patch,delete]"
    then:
      - field: tags
        function: truthy
    severity: warn

  # Server URL must be defined
  sam-gov-servers-defined:
    description: API must define servers
    message: "API must have servers defined"
    given: "$"
    then:
      - field: servers
        function: truthy
    severity: error

  # Info section must be complete
  sam-gov-info-complete:
    description: Info section must be complete
    message: "API info must have a title, description, and version"
    given: "$.info"
    then:
      - field: title
        function: truthy
      - field: description
        function: truthy
      - field: version
        function: truthy
    severity: error

  # Paths should use kebab-case
  sam-gov-path-kebab-case:
    description: API paths should use kebab-case
    message: "Path '{{path}}' should use kebab-case"
    given: "$.paths"
    then:
      function: pattern
      functionOptions:
        match: "^\\/[a-z0-9/{}\\-]+$"
    severity: hint

  # Parameters must have descriptions
  sam-gov-parameter-descriptions:
    description: Parameters must have descriptions
    message: "Parameter '{{value}}' must have a description"
    given: "$.paths[*][*].parameters[*].name"
    then:
      function: truthy
    severity: hint