Day 8. Not working.

Solved in scala again, the (almost) identical algorithm worked in scala.
fml.

day8.exs

@@ -0,0 +1,66 @@
+defmodule DayEight do
+  def part_one(input) do
+    parsed = parse_input(input)
+  end
+
+  def part_two(input) do
+    parsed = parse_input(input)
+  end
+
+  def parse_input(input) do
+    ints = String.replace(input, "\n", "")
+           |> String.split(" ")
+           |> Enum.map(&String.to_integer/1)
+    parse_node(ints, 0)
+  end
+
+  def parse_node([], _), do: {[], 0}
+  def parse_node([0, meta | tail], 0) do
+    IO.puts "childless end node #{length tail}"
+    {ntail, metas} = take(tail, meta, [])
+    metasum = Enum.sum(metas)
+    {ntail, metasum}
+  end
+
+  def parse_node([0, meta | tail], crem) do
+    IO.puts "childless node #{length tail} crem: #{crem}"
+    {ntail, metas} = take(tail, meta, [])
+    {ptail, pmetasum} = parse_node(ntail, crem - 1)
+    metasum = Enum.sum(metas)
+    {ptail, metasum + pmetasum}
+  end
+
+  def parse_node([child, meta | tail], 0) do
+    IO.puts "end node #{length tail}"
+    {ctail, cmetasum} = parse_node(tail, child)
+    {ntail, metas} = take(ctail, meta, [])
+    metasum = Enum.sum(metas)
+    {ntail, metasum + cmetasum}
+  end
+
+  def parse_node([child, meta | tail], crem) do
+    IO.puts "regular node #{length tail} crem: #{crem}"
+    {ctail, cmetasum} = parse_node(tail, child)
+    {ntail, metas} = take(ctail, meta, [])
+    metasum = Enum.sum(metas)
+    {ntail, metasum + cmetasum}
+  end
+
+# def parse_node(left, crem) do
+#   IO.inspect left ++ 0
+#   parse_node([], crem - 1)
+# end
+
+  def take(rem, 0, acc), do: {rem, Enum.reverse acc}
+#  def take([], num, acc), do: take([], num - 1, [0 | acc])
+  def take([head | tail], num, acc) do
+    take(tail, num - 1, [head | acc])
+  end
+end
+
+{:ok, content} = File.read("input8.txt")
+
+IO.puts("Input length: #{String.length content}")
+
+IO.puts("Part 1: #{DayEight.part_one(content)}")
+IO.puts("Part 2: #{DayEight.part_two(content)}")