extends: spectral:oas
rules:
  stack-overflow-operation-summaries-title-case:
    description: All Stack Overflow API operation summaries must use Title Case
    message: "Operation summary '{{value}}' must use Title Case"
    severity: warn
    given: "$.paths[*][get,post,put,patch,delete].summary"
    then:
      function: pattern
      functionOptions:
        match: "^[A-Z][a-zA-Z0-9]*([ ][A-Z][a-zA-Z0-9]*)*$"

  stack-overflow-operationid-camel-case:
    description: Stack Overflow API operationIds must use camelCase
    message: "operationId '{{value}}' must use camelCase"
    severity: warn
    given: "$.paths[*][get,post,put,patch,delete].operationId"
    then:
      function: pattern
      functionOptions:
        match: "^[a-z][a-zA-Z0-9]*$"

  stack-overflow-operations-must-have-operationid:
    description: All Stack Overflow API operations must have an operationId
    message: "Operation is missing operationId"
    severity: error
    given: "$.paths[*][get,post,put,patch,delete]"
    then:
      field: operationId
      function: truthy

  stack-overflow-pagination-supported:
    description: List operations should support page and pagesize parameters
    message: "List operations should support pagination via page and pagesize"
    severity: warn
    given: "$.paths[*].get.parameters[*]"
    then:
      function: schema
      functionOptions:
        schema:
          type: object

  stack-overflow-wrapper-response-schema:
    description: Stack Overflow list responses must use the wrapper format with items
    message: "Response schema should include items array for list responses"
    severity: warn
    given: "$.components.schemas[*]"
    then:
      function: schema
      functionOptions:
        schema:
          type: object

  stack-overflow-teams-bearer-auth:
    description: Stack Overflow for Teams API must use bearer token authentication
    message: "Teams API must define bearerAuth security scheme"
    severity: error
    given: "$.components.securitySchemes"
    then:
      function: schema
      functionOptions:
        schema:
          type: object

  stack-overflow-teams-path-includes-team:
    description: Stack Overflow for Teams paths must include team parameter
    message: "Teams API paths should include the {team} path parameter"
    severity: warn
    given: "$.paths[*]~"
    then:
      function: pattern
      functionOptions:
        match: "^/teams/\\{team\\}"

  stack-overflow-response-error-schemas:
    description: Error responses must reference ErrorResponse schema
    message: "4xx responses should use ErrorResponse schema"
    severity: warn
    given: "$.paths[*][get,post,put,patch,delete].responses[4*].content.application/json.schema"
    then:
      function: truthy

  stack-overflow-post-requires-body:
    description: POST and PUT operations must have request bodies
    message: "POST/PUT operations must define a requestBody"
    severity: error
    given: "$.paths[*][post,put]"
    then:
      field: requestBody
      function: truthy