Class: Zold::Copies

Inherits:
Object
  • Object
show all
Defined in:
lib/zold/copies.rb

Overview

All copies

Instance Method Summary collapse

Constructor Details

#initialize(dir) ⇒ Copies

Returns a new instance of Copies.



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# File 'lib/zold/copies.rb', line 32

def initialize(dir)
  @dir = dir
end

Instance Method Details

#add(content, host, port, score, time = Time.now) ⇒ Object 



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# File 'lib/zold/copies.rb', line 57

def add(content, host, port, score, time = Time.now)
  raise "Content can't be empty" if content.empty?
  raise 'TCP port must be of type Integer' unless port.is_a?(Integer)
  raise "TCP port can't be negative: #{port}" if port < 0
  raise 'Time must be of type Time' unless time.is_a?(Time)
  raise "Time must be in the past: #{time}" if time > Time.now
  raise 'Score must be Integer' unless score.is_a?(Integer)
  raise "Score can't be negative: #{score}" if score < 0
  FileUtils.mkdir_p(@dir)
  list = load
  target = list.find do |s|
    f = File.join(@dir, s[:name])
    File.exist?(f) && AtomicFile.new(f).read == content
  end
  if target.nil?
    max = Dir.new(@dir)
      .select { |f| f =~ /^[0-9]+$/ }
      .map(&:to_i)
      .max
    max = 0 if max.nil?
    name = (max + 1).to_s
    AtomicFile.new(File.join(@dir, name)).write(content)
  else
    name = target[:name]
  end
  list.reject! { |s| s[:host] == host && s[:port] == port }
  list << {
    name: name,
    host: host,
    port: port,
    score: score,
    time: time
  }
  save(list)
end

#all ⇒ Object 



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# File 'lib/zold/copies.rb', line 93

def all
  load.group_by { |s| s[:name] }.map do |name, scores|
    {
      name: name,
      host: scores[0][:host],
      port: scores[0][:port],
      path: File.join(@dir, name),
      score: scores.select { |s| s[:time] > Time.now - 24 * 60 * 60 }
        .map { |s| s[:score] }
        .inject(&:+) || 0
    }
  end.select { |c| File.exist?(c[:path]) }
end

#clean ⇒ Object 



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# File 'lib/zold/copies.rb', line 44

def clean
  list = load
  list.reject! { |s| s[:time] < Time.now - 24 * 60 * 60 }
  save(list)
  Dir.new(@dir).select { |f| f =~ /^[0-9]+$/ }.each do |f|
    File.delete(File.join(@dir, f)) if list.find { |s| s[:name] == f }.nil?
  end
end

#remove(host, port) ⇒ Object 



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# File 'lib/zold/copies.rb', line 53

def remove(host, port)
  save(load.reject { |s| s[:host] == host && s[:port] == port })
end

#root ⇒ Object 



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# File 'lib/zold/copies.rb', line 36

def root
  File.join(@dir, '..')
end

#to_s ⇒ Object 



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# File 'lib/zold/copies.rb', line 40

def to_s
  File.basename(@dir)
end