defmodule Kayrock.OffsetDelete do
  @api :offset_delete
  @moduledoc "Kayrock-generated module for the Kafka `#{@api}` API
"
  _ = " THIS CODE IS GENERATED BY KAYROCK"

  (
    @vmin 0
    @vmax 0
  )

  defmodule V0.Request do
    @vsn 0
    @api :offset_delete
    @schema group_id: :string,
            topics: {:array, name: :string, partitions: {:array, partition_index: :int32}}
    @moduledoc "Kayrock-generated request struct for Kafka `#{@api}` v#{@vsn} API
messages

The schema of this API is
```
#{inspect(@schema, pretty: true)}
```
"
    _ = " THIS CODE IS GENERATED BY KAYROCK"
    defstruct group_id: nil, topics: [], correlation_id: nil, client_id: nil
    import Elixir.Kayrock.Serialize
    @typedoc "Request struct for the Kafka `#{@api}` API v#{@vsn}
"
    @type t :: %__MODULE__{
            group_id: nil | binary(),
            topics: [%{name: nil | binary(), partitions: [%{partition_index: nil | integer()}]}],
            correlation_id: nil | integer(),
            client_id: nil | binary()
          }
    @doc "Returns the Kafka API key for this API"
    @spec api_key :: integer
    def api_key do
      Kayrock.KafkaSchemaMetadata.api_key(:offset_delete)
    end

    @doc "Returns the API version (#{@vsn}) implemented by this module"
    @spec api_vsn :: integer
    def api_vsn do
      0
    end

    @doc "Returns a function that can be used to deserialize the wire response from the\nbroker for this message type\n"
    @spec response_deserializer :: (binary -> {V0.Response.t(), binary})
    def response_deserializer do
      &V0.Response.deserialize/1
    end

    @doc "Returns the schema of this message\n\nSee [above](#).\n"
    @spec schema :: term
    def schema do
      [
        group_id: :string,
        topics: {:array, name: :string, partitions: {:array, partition_index: :int32}}
      ]
    end

    @doc "Serialize a message to binary data for transfer to a Kafka broker"
    @spec serialize(t()) :: iodata
    def serialize(%V0.Request{} = struct) do
      [
        <<api_key()::16, api_vsn()::16, struct.correlation_id::32>>,
        case struct.client_id do
          nil -> <<-1::16-signed>>
          id -> <<byte_size(id)::16, id::binary>>
        end,
        [
          serialize(:string, Map.fetch!(struct, :group_id)),
          case Map.fetch!(struct, :topics) do
            nil ->
              <<-1::32-signed>>

            [] ->
              <<0::32-signed>>

            vals when is_list(vals) ->
              [
                <<length(vals)::32-signed>>,
                for v <- vals do
                  [
                    serialize(:string, Map.fetch!(v, :name)),
                    case Map.fetch!(v, :partitions) do
                      nil ->
                        <<-1::32-signed>>

                      [] ->
                        <<0::32-signed>>

                      vals when is_list(vals) ->
                        [
                          <<length(vals)::32-signed>>,
                          for v <- vals do
                            [serialize(:int32, Map.fetch!(v, :partition_index))]
                          end
                        ]
                    end
                  ]
                end
              ]
          end
        ]
      ]
    end
  end

  defimpl(Elixir.Kayrock.Request, for: V0.Request) do
    def serialize(%V0.Request{} = struct) do
      try do
        V0.Request.serialize(struct)
      rescue
        e -> reraise Kayrock.InvalidRequestError, {e, struct}, __STACKTRACE__
      end
    end

    def api_vsn(%V0.Request{}) do
      V0.Request.api_vsn()
    end

    def response_deserializer(%V0.Request{}) do
      V0.Request.response_deserializer()
    end
  end

  (
    @doc "Returns a request struct for this API with the given version"
    @spec get_request_struct(integer) :: request_t
  )

  def get_request_struct(0) do
    %V0.Request{}
  end

  defmodule V0.Response do
    @vsn 0
    @api :offset_delete
    @schema error_code: :int16,
            throttle_time_ms: :int32,
            topics:
              {:array,
               name: :string, partitions: {:array, partition_index: :int32, error_code: :int16}}
    @moduledoc "Kayrock-generated response struct for Kafka `#{@api}` v#{@vsn} API
messages

The schema of this API is
```
#{inspect(@schema, pretty: true)}
```
"
    _ = " THIS CODE IS GENERATED BY KAYROCK"
    defstruct error_code: nil, throttle_time_ms: nil, topics: [], correlation_id: nil
    @typedoc "Response struct for the Kafka `#{@api}` API v#{@vsn}
"
    @type t :: %__MODULE__{
            error_code: nil | integer(),
            throttle_time_ms: nil | integer(),
            topics: [
              %{
                name: nil | binary(),
                partitions: [%{partition_index: nil | integer(), error_code: nil | integer()}]
              }
            ],
            correlation_id: integer()
          }
    import Elixir.Kayrock.Deserialize
    @doc "Returns the Kafka API key for this API"
    @spec api_key :: integer
    def api_key do
      Kayrock.KafkaSchemaMetadata.api_key(:offset_delete)
    end

    @doc "Returns the API version (#{@vsn}) implemented by this module"
    @spec api_vsn :: integer
    def api_vsn do
      0
    end

    @doc "Returns the schema of this message\n\nSee [above](#).\n"
    @spec schema :: term
    def schema do
      [
        error_code: :int16,
        throttle_time_ms: :int32,
        topics:
          {:array,
           name: :string, partitions: {:array, partition_index: :int32, error_code: :int16}}
      ]
    end

    @doc "Deserialize data for this version of this API\n"
    @spec deserialize(binary) :: {t(), binary}
    def deserialize(data) do
      <<correlation_id::32-signed, rest::binary>> = data
      deserialize_field(:root, :error_code, %__MODULE__{correlation_id: correlation_id}, rest)
    end

    defp deserialize_field(:root, :error_code, acc, data) do
      {val, rest} = deserialize(:int16, data)
      deserialize_field(:root, :throttle_time_ms, Map.put(acc, :error_code, val), rest)
    end

    defp deserialize_field(:root, :throttle_time_ms, acc, data) do
      {val, rest} = deserialize(:int32, data)
      deserialize_field(:root, :topics, Map.put(acc, :throttle_time_ms, val), rest)
    end

    defp deserialize_field(:topics, :name, acc, data) do
      {val, rest} = deserialize(:string, data)
      deserialize_field(:topics, :partitions, Map.put(acc, :name, val), rest)
    end

    defp deserialize_field(:partitions, :partition_index, acc, data) do
      {val, rest} = deserialize(:int32, data)
      deserialize_field(:partitions, :error_code, Map.put(acc, :partition_index, val), rest)
    end

    defp deserialize_field(:partitions, :error_code, acc, data) do
      {val, rest} = deserialize(:int16, data)
      deserialize_field(:partitions, nil, Map.put(acc, :error_code, val), rest)
    end

    defp deserialize_field(:topics, :partitions, acc, data) do
      <<num_elements::32-signed, rest::binary>> = data

      {vals, rest} =
        if num_elements > 0 do
          Enum.reduce(1..num_elements, {[], rest}, fn _ix, {acc, d} ->
            {val, r} = deserialize_field(:partitions, :partition_index, %{}, d)
            {[val | acc], r}
          end)
        else
          {[], rest}
        end

      deserialize_field(:topics, nil, Map.put(acc, :partitions, Enum.reverse(vals)), rest)
    end

    defp deserialize_field(:root, :topics, acc, data) do
      <<num_elements::32-signed, rest::binary>> = data

      {vals, rest} =
        if num_elements > 0 do
          Enum.reduce(1..num_elements, {[], rest}, fn _ix, {acc, d} ->
            {val, r} = deserialize_field(:topics, :name, %{}, d)
            {[val | acc], r}
          end)
        else
          {[], rest}
        end

      deserialize_field(:root, nil, Map.put(acc, :topics, Enum.reverse(vals)), rest)
    end

    defp deserialize_field(_, nil, acc, rest) do
      {acc, rest}
    end
  end

  (
    @doc "Deserializes raw wire data for this API with the given version"
    @spec deserialize(integer, binary) :: {response_t, binary}
  )

  def deserialize(0, data) do
    V0.Response.deserialize(data)
  end

  (
    @typedoc "Union type for all request structs for this API"
    @type request_t :: Kayrock.OffsetDelete.V0.Request.t()
  )

  (
    @typedoc "Union type for all response structs for this API"
    @type response_t :: Kayrock.OffsetDelete.V0.Response.t()
  )

  (
    @doc "Returns the minimum version of this API supported by Kayrock (#{@vmin})"
    @spec min_vsn :: integer
    def min_vsn do
      0
    end
  )

  (
    @doc "Returns the maximum version of this API supported by Kayrock (#{@vmax})"
    @spec max_vsn :: integer
    def max_vsn do
      0
    end
  )
end