Class: Mayak::Csv::Decoder::HashDecoderStrict

Inherits:
T::Struct
  • Object
show all
Extended by:
T::Generic, T::Sig
Includes:
Mayak::Csv::Decoder
Defined in:
lib/mayak/csv/decoder.rb

Constant Summary collapse

Value = 
type_member {{ fixed: T::Hash[String, String] }}

Instance Method Summary collapse

Methods included from Mayak::Csv::Decoder

hash_decoder, hash_decoder_strict, #map, #map_try

Instance Method Details

#decode(csv) ⇒ Object 



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# File 'lib/mayak/csv/decoder.rb', line 101

def decode(csv)
  lines = begin
    case csv
    when String then csv.split("\n")
    else csv.to_a
    end
  end
  header, *rows = lines

  return Mayak::Monads::Try::Success.new([]) if rows.empty?
  return Mayak::Monads::Try::Success.new([]) if header.nil? || header.empty?
  keys = header.split(separator)
  parse_results = rows.map.with_index do |row, index|
    values = row.split(separator)
    if values.length != keys.length
      Mayak::Monads::Try::Failure.new(
        ::Mayak::Csv::ParseError.new(build_error_message(keys.length, row.length, index))
      )
    else
      keys.zip(values).to_h
    end
  end
  Mayak::Monads::Try.sequence(parse_results).map(&:to_h)
end