defmodule CSVReader do
  def read_file(file_path) do
    File.stream!(file_path)
    |> Stream.map(&String.trim_trailing/1)
    |> Stream.map(&String.split(&1, ","))
    |> Enum.to_list()
  end
end

# নমুনা ব্যবহার
CSVReader.read_file("data.csv")
# আউটপুট: [["Header1", "Header2"], ["Row1Value1", "Row1Value2"], ["Row2Value1", "Row2Value2"]]

defmodule CSVWriter do
  def write_to_file(file_path, data) do
    File.open(file_path, [:write], fn file ->
      Enum.each(data, fn row ->
        IO.write(file, Enum.join(row, ",") <> "\n")
      end)
    end)
  end
end

# নমুনা ব্যবহার
data = [["Header1", "Header2"], ["Value1", "Value2"], ["Value3", "Value4"]]
CSVWriter.write_to_file("output.csv", data)
# output.csv তৈরি করা হবে ডেটা সহ যা CSV হিসেবে ফর্ম্যাটেড হবে

defp deps do
  [
    {:nimble_csv, "~> 1.2"}
  ]
end

defmodule MyCSVParser do
  NimbleCSV.define(MyParser, separator: ",", escape: "\\")

  def parse(file_path) do
    file_path
    |> File.stream!()
    |> MyParser.parse_stream()
    |> Enum.to_list()
  end
end

# নমুনা ব্যবহার
CSVReader.read_file("data.csv")
# আউটপুট: [["Header1", "Header2"], ["Row1Value1", "Row1Value2"], ["Row2Value1", "Row2Value2"]]

defmodule CSVWriter do
  def write_to_file(file_path, data) do
    File.open(file_path, [:write], fn file ->
      Enum.each(data, fn row ->
        IO.write(file, Enum.join(row, ",") <> "\n")
      end)
    end)
  end
end

# নমুনা ব্যবহার
data = [["Header1", "Header2"], ["Value1", "Value2"], ["Value3", "Value4"]]
CSVWriter.write_to_file("output.csv", data)
# output.csv তৈরি করা হবে ডেটা সহ যা CSV হিসেবে ফর্ম্যাটেড হবে

defp deps do
  [
    {:nimble_csv, "~> 1.2"}
  ]
end

defmodule MyCSVParser do
  NimbleCSV.define(MyParser, separator: ",", escape: "\\")

  def parse(file_path) do
    file_path
    |> File.stream!()
    |> MyParser.parse_stream()
    |> Enum.to_list()
  end
end

# নমুনা ব্যবহার
CSVReader.read_file("data.csv")
# আউটপুট: [["Header1", "Header2"], ["Row1Value1", "Row1Value2"], ["Row2Value1", "Row2Value2"]]