# Argo CD API Spectral Ruleset
# Enforces conventions observed in the Argo CD REST API (swagger 2.0)

rules:

  # INFO / METADATA
  info-title-prefix:
    description: API title must start with "Argo CD"
    severity: warn
    given: "$.info.title"
    then:
      function: pattern
      functionOptions:
        match: "^Argo CD"

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

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

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

  operation-summary-title-case:
    description: Operation summaries must start with "Argo CD"
    severity: warn
    given: "$.paths[*][get,post,put,delete,patch].summary"
    then:
      function: pattern
      functionOptions:
        match: "^Argo CD"

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

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

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

  # PATHS - NAMING CONVENTIONS
  paths-kebab-case:
    description: Path segments should use kebab-case
    severity: warn
    given: "$.paths[*]~"
    then:
      function: pattern
      functionOptions:
        match: "^(/api/v[0-9]+)?(/[a-z0-9{}-]+)*$"

  paths-no-trailing-slash:
    description: Paths must not have trailing slashes
    severity: warn
    given: "$.paths[*]~"
    then:
      function: pattern
      functionOptions:
        notMatch: "/$"

  paths-versioned:
    description: All paths should be versioned with /api/v1/
    severity: info
    given: "$.paths[*]~"
    then:
      function: pattern
      functionOptions:
        match: "^/api/v"

  # PARAMETERS
  parameter-description-required:
    description: All parameters must have a description
    severity: warn
    given: "$.paths[*][get,post,put,delete,patch].parameters[*]"
    then:
      field: description
      function: truthy

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

  response-description-required:
    description: All responses must have a description
    severity: warn
    given: "$.paths[*][get,post,put,delete,patch].responses[*]"
    then:
      field: description
      function: truthy

  # SECURITY
  security-definitions-required:
    description: API must define security schemes
    severity: warn
    given: "$"
    then:
      field: securityDefinitions
      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: body
      function: falsy

  # GENERAL QUALITY
  no-empty-summaries:
    description: Summaries must not be empty strings
    severity: error
    given: "$.paths[*][get,post,put,delete,patch].summary"
    then:
      function: pattern
      functionOptions:
        match: ".+"

  operation-id-camel-case:
    description: OperationIds should use camelCase or ServiceName_MethodName pattern
    severity: info
    given: "$.paths[*][get,post,put,delete,patch].operationId"
    then:
      function: pattern
      functionOptions:
        match: "^[A-Za-z][A-Za-z0-9_]*$"