Class: Machines

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

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Machines

Returns a new instance of Machines.



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# File 'lib/machines.rb', line 12

def initialize
  #puts  "in initialize"
  #puts "#{MFILE}"
  lines = File.open(MFILE, 'r').readlines
  @entries = lines[0..-1]
  @machines = @entries.collect do |line|
    entry_to_hash line.chomp
  end
  count
end

Instance Method Details

#add(id) ⇒ Object 



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# File 'lib/machines.rb', line 36

def add id
  f = File.open(MFILE, "a")
  @machines.collect do |line|
    if (id == line[:mach_id]) 
      puts "machine already exists, not added"
      break
    end
  end
  f.write "#{id}|"
  f.close
  initialize
  # @machines.push "#{id}|"
end

#add_req(machine_name, request_id) ⇒ Object 



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# File 'lib/machines.rb', line 95

def add_req machine_name, request_id
  f = File.open(MFILE, "w")
  @machines.collect do |line|
    if line[:mach_id] != machine_name
      f.puts "#{line[:mach_id]}|#{line[:req_id]}"
    else
      # update the request id field
      if line[:req_id] == nil
        new_r_id = request_id 
      else
        new_r_id = "#{line[:req_id]}, #{request_id}"
      end
      f.puts "#{line[:mach_id]}|#{new_r_id}"
    end
  end
  f.close
  Machines.new.get machine_name
end

#count ⇒ Object 



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# File 'lib/machines.rb', line 32

def count
  @machines.count
end

#entry_to_hash(line) ⇒ Object 



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# File 'lib/machines.rb', line 27

def entry_to_hash line
  values = line.split("|")
  Hash[fields.zip values]
end

#fields ⇒ Object 



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# File 'lib/machines.rb', line 23

def fields
  [:mach_id, :req_id]
end

#find_free(date, days) ⇒ Object 



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# File 'lib/machines.rb', line 63

def find_free date, days
  desired_range = Date.strptime(date, '%m-%d-%Y')..(Date.strptime(date, '%m-%d-%Y') + days.to_i)
  # puts "desired_range: #{desired_range}"
  free_machines = Array.new
  @machines.collect do |line|
    # puts line
    if line[:req_id].nil? 
      free_machines.push line[:mach_id]  
    else
      avail = true
      r = line[:req_id].split(", ")
      # puts "r: #{r}"
      # account for multiple requests being fulfilled by a given machine
      r.collect do |rq|
        # puts "rq: #{rq}"
        rq_range = Requests.new.req_date_range rq
        # puts "rq_range: #{rq_range}"
        rq_range.map do |date| 
          if desired_range === date
            avail = false 
          end
        end
        # puts "avail: #{avail}"
      end
      if avail == true
        free_machines.push line[:mach_id]  
      end
    end
  end
  free_machines
end

#get(m) ⇒ Object 



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# File 'lib/machines.rb', line 114

def get m
  @machines.find { |i| i[:mach_id] == m }
end

#save ⇒ Object 



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# File 'lib/machines.rb', line 50

def save
  f = File.open(MFILE, "w")
  @machines.collect do |line|
    f.puts "#{line[:mach_id]}|#{line[:req_id]}"
  end
  f.close
end

#show ⇒ Object 



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# File 'lib/machines.rb', line 58

def show
  puts @machines
  count 
end