#!/usr/bin/ruby -w
## Site is a trivial ADT for a web site's most basic configuration.
## Includes driver to create Sites from a space-delimited file.
## For now we pretend there is only Apache 2 but some polymorphic nonsense
## may eventually acknowledge Apache 1.3 or some other software.
## Unit tests are in TestSite.
## Copyleft 2008 adric @ adric . net, Artistic License

class Site < Object
attr_reader :ip_port, :domain, :user, :docroot, :servername

  ## Create a new Site from input data tuple thingy. Define a flag
  ## for using www in servernames and set it to off.
  def initialize(in_data)
    @ip_port, @domain, @user = in_data[0], in_data[1], in_data[2]
    ## undoubtedly there is a more ruby, pretty way of doing that

    ## default this to off for sanity
    @www_names=false
  end

  ## Change user that owns the Site to specified user. Prob'lly
  ## a good idea to check if it exists before proceeding.
  def change_user(to_user)
  end
  
  ## Change Site DocRoot to specified path. Prob'lly
  ## a good idea to check if it exists before proceeding.  
  def change_docroot(to_path)
  end
  
  ## Change Site's address (ipv4). Range sanity checking for the
  ## ip at least...
  def change_ip_port(to_ip,to_port)
  end
  
  ## Add an ip / port to the Site. Range sanity checking for the
  ## ip at least and see if if we already have it before adding it.
  def add_ip_port(new_ip,new_port)
  end
  
  ## Switch to using the www.servername.tld form for ServerNames.
  ## Makes changes, sets boolean flag, notes customer name for later abuse
  def switch_to_www_servernames()
    @www_names=true
  end
  
  ## Switch from using the www.servername.tld form for ServerNames.
  ## Makes changes, sets boolean flag, notes customer name for later abuse
  def switch_from_www_servernames()
    @www_names=false
  end

end

## makesites: take a file with space-delimited fields and make Site objects for
##  mashing into server configs, take one argument, a file like this:
##  username domainname.tld ipv4address

## usage
def usage()
  p 'Site (driver): make Site objects from provided file, takes one argument, a file.'
  exit
end

## check args: if mot one argument, exit with usage
##  returns first argument
def check_args
  if ARGV.size != 1
	  usage
  end
  @target = ARGV.pop
end

## check file for existence and TODO possibly format
##  returns valid filename 
def check_file(target)
  @target = target

  ## if file does not exist, then say so and exit with usage.
  if not File.exists?(@target)
    puts '#Argument {@target} does not appaear to be a file.'
    usage
  end
  ## if file does not seem to be formatted correctly, then hint thusly, and exit with usage.
    ##TODO

  ## If everything checks out, pass along the target filename.
  return @target
end

## make sites: make Site objects from file argument
##   returns list of Sites
def make_sites(argument)
  @target = argument
  @sites = []
  ## for each line in the file, split it up by space and make a Site out of it, and put that 
  ##  into the list at the top, and close the file.
  File.open(@target,'r').each do |line| @sites.push( Site.new( line.split ) ) end
  return @sites
end

## and do stuff, but only if we are run directly
if __FILE__ == $0
  @target = check_args
  @target = check_file(@target)
  @sites = make_sites(@target)
  p '*** Debug? Sure! ', @sites, '***'
end