extends: spectral:oas
rules:
  # ZenRows uses snake_case for its query parameters (apikey, js_render,
  # premium_proxy, proxy_country, custom_headers, session_id, js_instructions,
  # wait_for, block_resources, css_extractor, json_response, response_type,
  # screenshot_fullpage, screenshot_selector, screenshot_format,
  # screenshot_quality, original_status, allowed_status_codes).
  zenrows-snake-case-query-parameters:
    description: ZenRows query parameters must use lower snake_case.
    message: Query parameter "{{value}}" should be lower snake_case.
    severity: warn
    given: $.paths..parameters[?(@.in == 'query')].name
    then:
      function: pattern
      functionOptions:
        match: '^[a-z][a-z0-9_]*$'

  zenrows-apikey-required:
    description: Every operation must accept the apikey query parameter.
    message: ZenRows operations must declare the apikey query parameter.
    severity: error
    given: $.paths.*[get,post,put,patch,delete,options,head]
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          properties:
            parameters:
              type: array
              contains:
                type: object
                properties:
                  name: { const: apikey }
                  in: { const: query }
                required: [name, in]
          required: [parameters]

  zenrows-server-base-url:
    description: Servers should declare https://api.zenrows.com/v1 as the base URL.
    message: Servers entry should use https://api.zenrows.com/v1.
    severity: warn
    given: $.servers[*].url
    then:
      function: pattern
      functionOptions:
        match: '^https://api\.zenrows\.com/v1/?$'

  zenrows-operation-title-case-summary:
    description: Operation summaries should use Title Case.
    message: '"{{value}}" should use Title Case.'
    severity: info
    given: $.paths.*[get,post,put,patch,delete,options,head].summary
    then:
      function: pattern
      functionOptions:
        match: '^[A-Z]'

  zenrows-operation-tag:
    description: Operations must be tagged.
    severity: warn
    given: $.paths.*[get,post,put,patch,delete,options,head]
    then:
      field: tags
      function: truthy