#!/usr/bin/env ruby
#### Incomplete room parser for the English mode of howie@umix:/home/howie/adventure
#### written by Anthony Martinez during ICFP 2006 - Team Abstraction Anonymous
#### License TBD
#### Contact: pi % pihost ! us 

### Designed to be pasted/loaded into irb and manually abused. Autosolve functionality was planned
### but work never began on it. 
class Room

  attr_reader :name, :desc, :items, :exits
  def initialize
    @name = ""
    @desc = ""
    @items = []
    @exits = {}
    @seenit = Hash.new(0)
  end

  def seen(it)
    if @seenit[it] > 0 then return true
    else @seenit[it] += 1 ; return false
    end
  end

  def to_s
    ev = ""
    ev << "Room:  #{@name}\n"
    ev << "Items: " + @items.join(", ") + "\n"
    ev << "Exits: " + @exits.keys.join(", ")
    ev << "There are "
    @seenit.each do |k, v|
      next if v == 1
      ev << "#{v} #{k}'s, "
    end
    ev
  end

  def parse(str)
    @desc = str
    arr = @desc.split.join(" ").split(".")
    @parsed = arr
    arr.each    { |t| t.chomp! }
    arr.delete_if { |t| t.nil? || t.empty? }

    @name = arr.shift
    last_item = arr.pop
    warn "The last item is #{last_item}"
    arr.each do |ln|
      case ln
      when /(?:leads|you can go) (.*)/ 
        @exits = $1.split(/, ?/)
        @exits.each {|e| e.gsub!(" ?or ?", "")}
      when /There is an? (.*) here/ 
        warn "Got what seems to be a new room description in the middle of other items" unless @items.empty?
        warn "There is a: I got a #{$1}"
        @items << Item.new($1)  unless seen($1)
      when /Underneath the ([^,]+)/i 
        warn "Underneath: I got a #{$1}"
        @items << Item.new($1)  unless seen($1)
      end
    end

    last_item =~ /Underneath the [^,]+, there is a (?:\(broken\))? (.*)\Z/
    @items << Item.new($1) unless seen($1)

  end
end

class Item
  def initialize
    @name = ""
    @missing = []
    @takes = []
    @description = ""
    @attribute = ""
  end

  def broken? 
    @missing.empty?
  end

  def initialize(name,attribute="")
    @name = name
    @attribute = attribute
  end
end