#!/usr/bin/python

# This script generates a specific deployment file for the Bittorrent example.
# It assumes that the platform will be a cluster.
# Usage: python generate.py nb_nodes nb_bits end_date percentage
# Example: python generate.py 10000 5000

import sys, random

if len(sys.argv) != 4:
	print("Usage: python generate.py nb_nodes end_date seed_percentage > deployment_file.xml")
	sys.exit(1)

nb_nodes = int(sys.argv[1])
end_date = int(sys.argv[2])
seed_percentage = int(sys.argv[3]);

nb_bits = 24
max_id = 2 ** nb_bits - 1
all_ids = [42]

sys.stdout.write("<?xml version='1.0'?>\n"
"<!DOCTYPE platform SYSTEM \"http://simgrid.gforge.inria.fr/simgrid.dtd\">\n"
"<platform version=\"3\">\n"
"  <process host=\"c-0.me\" function=\"tracker\"><argument value=\"%d\"/></process>\n" % end_date)

for i in range(1, nb_nodes):

  ok = False
  while not ok:
    my_id = random.randint(0, max_id)
    ok = not my_id in all_ids
  start_date = i * 10
  line = "  <process host=\"c-%d.me\" function=\"peer\"><argument value=\"%d\" /><argument value=\"%d\" />" % (i, my_id, end_date)
  if random.randint(0,100) < seed_percentage:
    line += "<argument value=\"1\" />"
  line += "</process>\n";
  sys.stdout.write(line)
  all_ids.append(my_id)
sys.stdout.write("</platform>")

