customer-service/lib/customer_service/events.ex

defmodule CustomerService.Events do
  @moduledoc """
  Events macro for adding JsonDecoder to domain events.
  """

  alias CustomerService.Aggregates.CustomerId
  alias CustomerService.Aggregates.LeadId

  defmacro __using__(_opts) do
    quote do
      defimpl Commanded.Serialization.JsonDecoder do
        def decode(
              %{
                id: %{
                  org_id: org_id,
                  customer_type: customer_type,
                  customer_id: customer_id
                }
              } = event
            ) do
          %{
            event
            | id: CustomerService.Aggregates.CustomerId.new(org_id, customer_type, customer_id)
          }
        end

        def decode(
              %{
                id: %{
                  org_id: org_id,
                  type: "lead",
                  lead_id: lead_id
                }
              } = event
            ) do
          %{event | id: CustomerService.Aggregates.LeadId.new(org_id, lead_id)}
        end

        def decode(event), do: event
      end
    end
  end
end

defmodule CustomerService.Events.CustomerCreated do
  use CustomerService.Events
  @derive Jason.Encoder
  defstruct [
    :id,
    :first_name,
    :last_name,
    :birth_date,
    :gender,
    :email,
    :phone,
    :address,
    :document_id
  ]
end

defmodule CustomerService.Events.CorporateCustomerCreated do
  use CustomerService.Events
  @derive Jason.Encoder
  defstruct [
    :id,
    :legal_name,
    :commercial_name,
    :ruc,
    :legal_rep_name,
    :legal_rep_document_id,
    :email,
    :phone,
    :address
  ]
end

defmodule CustomerService.Events.CustomerUpdated do
  use CustomerService.Events
  @derive Jason.Encoder
  defstruct [
    :id,
    :first_name,
    :last_name,
    :birth_date,
    :gender,
    :email,
    :phone,
    :address,
    :document_id
  ]
end

defmodule CustomerService.Events.CorporateCustomerUpdated do
  use CustomerService.Events
  @derive Jason.Encoder
  defstruct [
    :id,
    :legal_name,
    :commercial_name,
    :ruc,
    :legal_rep_name,
    :legal_rep_document_id,
    :email,
    :phone,
    :address
  ]
end

defmodule CustomerService.Events.QuickLeadCreated do
  use CustomerService.Events
  @derive Jason.Encoder
  defstruct [
    :id,
    :name,
    :email,
    :phone,
    :company_name,
    :status,
    :priority,
    :source,
    :notes,
    :assigned_to,
    :estimated_value,
    :expected_close_date
  ]
end

defmodule CustomerService.Events.QuickLeadUpdated do
  use CustomerService.Events
  @derive Jason.Encoder
  defstruct [
    :id,
    :name,
    :email,
    :phone,
    :company_name,
    :notes,
    :assigned_to,
    :estimated_value,
    :expected_close_date
  ]
end

defmodule CustomerService.Events.LeadStatusUpdated do
  use CustomerService.Events
  @derive Jason.Encoder
  defstruct [:id, :status, :previous_status, :updated_at]
end