João Paulo Dubas
410a509faa
Some checks reported errors
continuous-integration/drone/push Build encountered an error
Mainly add module docs and fix some aliases.
33 lines
728 B
Elixir
33 lines
728 B
Elixir
defmodule Wabanex.IMC do
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@moduledoc """
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Body mass index calculation
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"""
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def calculate(%{"filename" => filename}) do
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filename
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|> File.read()
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|> handle_file()
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end
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defp handle_file({:ok, content}) do
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data =
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content |> String.trim() |> String.split("\n") |> Enum.map(&parse_line/1) |> Enum.into(%{})
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{:ok, data}
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end
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defp handle_file({:error, _reason}) do
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{:error, "Error while opening the file"}
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end
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defp parse_line(line) do
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line
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|> String.split(",")
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|> List.update_at(1, &String.to_float/1)
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|> List.update_at(2, &String.to_float/1)
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|> calculate_imc()
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end
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defp calculate_imc([name, height, weight]), do: {name, weight / :math.pow(height / 100, 2)}
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end
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