#!/usr/bin/env python

"""
command line entry point for wsgiblob
serves an application from a .ini file using the [server]
section specified or wsgiref otherwise
"""

import sys
from pyloader.factory import IniFactory
from optparse import OptionParser
from server import wsgiref

def main(args=sys.argv[1:]):

  # parse command line options
  usage = '%prog [options] config-file'
  parser = OptionParser(usage=usage, description=__doc__)
  parser.add_option('-a', '--app', dest='app', default='',
                    help='which app to serve from the configuration')
  parser.add_option('-p', '--port', dest='port',
                    type='int', default=80,
                    help='which port to serve on, if server not specified in configuration')
  parser.add_option('--list-apps', dest='list_apps',
                    action='store_true', default=False,
                    help='list the WSGI apps available in the configuration')
  parser.add_option('--print-json', dest='print_json',
                    action='store_true', default=False,
                    help='print JSON format of the configuration')
  parser.add_option('--print-ini', dest='print_ini',
                    action='store_true', default=False,
                    help='print .ini format of the configuration')
  options, args = parser.parse_args(args)

  # check for single configuration file
  if len(args) != 1: # TODO: could munge multiple configs
    parser.print_usage()
    parser.exit()
  config = args[0]

  # create a factory from configuration
  # TODO: interpret if the configuration is .ini, JSON, etc
  factory = IniFactory(config, main=options.app)

  # print configuration, if specified
  if options.list_apps:
    for app in sorted(factory.config.keys()):
      print app
    return
  if options.print_json:
    print factory.json_config()
    return
  if options.print_ini:
    print factory.ini_config()
    return

  wsgiref(app=factory.load(), port=options.port)

if __name__ == '__main__':
  main()