module HTTPX
  class Session
    include Loggable
    include Chainable

    EMPTY_HASH: Hash[untyped, untyped]

    @options: Options
    @responses: Hash[Request, response]
    @persistent: bool?

    def self.plugin: (Symbol | Module plugin, ?options? options) ?{ (Class) -> void } -> singleton(Session)

    def wrap: () { (instance) -> void } -> void

    def close: (*untyped) -> void

    def build_request: (verb verb, generic_uri uri, ?request_params params, ?Options options) -> Request

    def initialize: (?options) { (self) -> void } -> void
                  | (?options) -> void

    private

    def pool: -> Pool

    def on_response: (Request, response) -> void

    def on_promise: (untyped, untyped) -> void

    def fetch_response: (Request request, Array[Connection] connections, untyped options) -> response?

    def find_connection: (Request request, Array[Connection] connections, Options options) -> Connection

    def send_request: (Request request, Array[Connection] connections, ?Options options) -> void

    def set_connection_callbacks: (Connection connection, Array[Connection] connections, Options options, ?cloned: bool) -> void

    def set_request_callbacks: (Request request) -> void

    def build_altsvc_connection: (Connection existing_connection, Array[Connection] connections, URI::Generic alt_origin, String origin, Hash[String, String] alt_params, Options options) -> (Connection & AltSvc::ConnectionMixin)?

    def build_requests: (verb, uri, request_params) -> Array[Request]
                      | (Array[[verb, uri, request_params]], Hash[Symbol, untyped]) -> Array[Request]
                      | (Array[[verb, uri]], request_params) -> Array[Request]
                      | (verb, _Each[[uri, request_params]], Hash[Symbol, untyped]) -> Array[Request]
                      | (verb, _Each[uri], request_params) -> Array[Request]

    def init_connection: (http_uri uri, Options options) -> Connection

    def send_requests: (*Request) -> Array[response]

    def _send_requests: (Array[Request] requests) -> Array[Connection]

    def receive_requests: (Array[Request] requests, Array[Connection] connections) -> Array[response]

    attr_reader self.default_options: Options
  end

  OriginalSession: singleton(Session)
end