defmodule EventStore.Snapshots.SnapshotData do
  @moduledoc """
  Snapshot data
  """

  alias EventStore.Snapshots.SnapshotData

  defstruct source_uuid: nil,
            source_version: nil,
            source_type: nil,
            data: nil,
            metadata: nil,
            created_at: nil

  @type t :: %SnapshotData{
          source_uuid: String.t(),
          source_version: non_neg_integer,
          source_type: String.t(),
          data: binary,
          metadata: binary,
          created_at: DateTime.t()
        }

  def serialize(%SnapshotData{data: data, metadata: metadata} = snapshot, serializer) do
    %SnapshotData{
      snapshot
      | data: serializer.serialize(data),
        metadata: serializer.serialize(metadata)
    }
  end

  def deserialize(
        %SnapshotData{source_type: source_type, data: data, metadata: metadata} = snapshot,
        serializer
      ) do
    %SnapshotData{
      snapshot
      | data: serializer.deserialize(data, type: source_type),
        metadata: serializer.deserialize(metadata, [])
    }
  end
end