78 lines
1.6 KiB
Ruby
78 lines
1.6 KiB
Ruby
require 'debug'
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# Generic FileHandler
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class FileHandler
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def initialize(file_path)
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@file_path = file_path
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end
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# Usage:
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# FileHandler.new('/path_to_file').read_lines do |line|
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# # process line
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# end
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def read_lines
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File.foreach(@file_path, chomp: true).map do |line|
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yield(line)
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end
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end
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# Usage:
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# file_content = FileHandler.new('/path_to_file').read_file(
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def read_file
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File.read(@file_path)
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end
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end
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class PuzzleSolver
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def initialize(file_handler, debug: false)
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@handler = file_handler
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@debug = debug
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end
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def debug(message)
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puts message if @debug
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end
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def print_debug(message)
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print message if @debug
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end
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def solve
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raise NotImplementedError, 'Please implement this method in subclasses.'
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end
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end
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class HomeworkSolver < PuzzleSolver
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def calculate(operator, int_array)
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int_array.reduce(operator)
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end
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def solve
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parsed_lines = @handler.read_file.split("\n").map {|line| line.split(" ")}
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number_lines = parsed_lines[0...-1].map {|numbers| numbers.map(&:to_i)}
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operator_line = parsed_lines[-1].map(&:to_sym)
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solutions = operator_line.map.with_index do |operator, i|
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ints = number_lines.map {|numbers| numbers[i]}
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calculate(operator, ints)
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end
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solutions.sum
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end
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end
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if ARGV[0].nil? || ARGV[0].empty?
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puts "Usage: ruby #{__FILE__} <file_name> [debug]"
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exit 1
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end
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file_path = ARGV[0]
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debug = (ARGV[1] == "debug")
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file_handler = FileHandler.new(file_path)
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## Puzzle-specific
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cls = HomeworkSolver
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##
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puts "The answer is: #{cls.new(file_handler, debug:).solve}"
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