the_chain_gang

the_chain_gang.ex

# Wat verkies je? Output is in beide een map %{}

# A, ketting, cleaner, iets meer code in submethods

def parse(rr_transform) do
  rr_transform
  |> new()
  |> add_address()
  |> add_names()
  |> add_birthdate()
  |> save()
end

def new(rr_transform), do: {rr_transform, %{}}

def add_address({rr_transform, output}) do
  address = %{
    city: city(rr_transform)
  }

  {rr_transform, Map.put(data, :address, address)}
end

def add_names({rr_transform, data}) do
  {rr_transform, Map.merge(data, name(rr_transform))}
end

def add_birthdate({rr_transform, data}) do
  {rr_transform, Map.put(data, :birthdate, maybe_date(rr_transform, "100"))}
end

def save({_rr_transform, data}) do
  data
end

def city(rr_transform) do
  city = maybe_input(rr_transform, "001")

  case String.split(city, "(") do
    [city] -> city
    [city, _] -> String.trim(city)
  end
end

def name(rr_transform) do
  name = maybe_input(rr_transform, "010")

  if String.contains?(name, ",") do
    [lastname, firstname] = String.split(name, ",")
    %{firstname: String.trim(firstname), lastname: String.trim(lastname), name: name}
  else
    %{firstname: "", lastname: "", name: name}
  end
end

# B, Map merge/put in `parse/1`, cleanere submethods

def parse(rr_transform) do
  %{}
  |> Map.put(:address, address(rr_transform))
  |> Map.put(:birthdate, birthdate(rr_transform))
  |> Map.merge(name(rr_transform))
end

def address(rr_transform) do
  street_nbr_box = maybe_input(rr_transform, "020")

  %{
    city: city(rr_transform)
  }
end

def name(rr_transform) do
  name = maybe_input(rr_transform, "010")

  if String.contains?(name, ",") do
    [lastname, firstname] = String.split(name, ",")
    %{firstname: String.trim(firstname), lastname: String.trim(lastname), name: name}
  else
    %{firstname: "", lastname: "", name: name}
  end
end

def birthdate(rr_transform),  do: maybe_date(rr_transform, "100")

def city(rr_transform) do
  city = maybe_input(rr_transform, "001")

  case String.split(city, "(") do
    [city] -> city
    [city, _] -> String.trim(city)
  end
end