extends: spectral:oas
rules:
  springer-nature-api-key-required:
    description: Springer Nature APIs require API key authentication
    message: "API must define security schemes"
    severity: error
    given: "$.components"
    then:
      field: securitySchemes
      function: truthy

  springer-nature-operation-id:
    description: All operations must have operationId
    message: "Missing operationId at {{path}}"
    severity: error
    given: "$.paths[*][get,post,put,patch,delete]"
    then:
      field: operationId
      function: truthy

  springer-nature-tags-required:
    description: All operations must have tags
    message: "Operation at {{path}} must have tags"
    severity: warn
    given: "$.paths[*][get,post,put,patch,delete]"
    then:
      field: tags
      function: truthy

  springer-nature-summary-title-case:
    description: Summaries must use Title Case
    message: "Summary '{{value}}' should use Title Case"
    severity: warn
    given: "$.paths[*][*].summary"
    then:
      function: pattern
      functionOptions:
        match: "^[A-Z]"

  springer-nature-search-parameters:
    description: Search endpoints must document q, s, and p parameters
    message: "Search endpoint at {{path}} should document pagination parameters"
    severity: info
    given: "$.paths[*].get"
    then:
      field: parameters
      function: truthy

  springer-nature-rate-limit-responses:
    description: APIs should document 429 rate limit responses
    message: "Rate-limited endpoint should define 429 response at {{path}}"
    severity: warn
    given: "$.paths[*][*]"
    then:
      field: "responses.429"
      function: truthy

  springer-nature-server-https:
    description: Springer Nature API servers must use HTTPS
    message: "Server URL should use HTTPS"
    severity: error
    given: "$.servers[*].url"
    then:
      function: pattern
      functionOptions:
        match: "^https://"