#!/usr/bin/python3

import subprocess
import os
import sys
import math
from core_allocator import core_allocation

# CONFIGS TO SET:

MANIFEST_FILE = "App/manifest.yaml"

'''
  Generate a manifest file with:
    N: number of clients
    M: number of servers
    T: number of threads for each server
    B: msg_size
'''
def generate_manifest(N, M, T, B, TOKEN_CHANNEL = True, token_out=1, token_in=1, id_out=1, id_in=1):
    (servers_allocation, client_allocation) = core_allocation(M, T)
    assert servers_allocation is not None
    assert client_allocation is not None
    mf = open(MANIFEST_FILE, 'w+')
    manifest_params = '''params:
  # The total max number of users
  user_count: {N}
  # The size of a message in bytes
  msg_size: {B}
  # The number of token channel messages each user can send per epoch
  token_out: {toko}
  # The number of token channel messages each user can receive per epoch
  token_in: {toki}
  # The number of ID channel messages each user can send per epoch
  id_out: {ido}
  # The number of ID channel messages each user can receive per epoch
  id_in: {idi}
  # Token channel or ID channel routing protocol selection
  token_channel: {TOKEN_CHANNEL}
  # Currently hardcoding an AES key for client -> server communications,
  # but in reality, a key exchange would be done
  master_secret: \"AHardCodedAESKey\"\n'''.format(N = str(N), B = str(B), TOKEN_CHANNEL=str(TOKEN_CHANNEL),\
  toko = str(token_out), toki = str(token_in), ido = str(id_out), idi = str(id_in))

    # print (manifest_params)
    mf.write(manifest_params)

    server_params = '''\ns{i}:
  sprvfile: keys/priv.seal.s{i}
  pubfile: keys/pub.s{i}
  weight: 1
  listen: 127.0.0.{i}:12500
  clisten: 127.0.0.{i}:13000
  slisten: 127.0.0.{i}:13001
  launchprefix: numactl {nstring}
  args: -t {T}
  roles: 7\n'''

    for s in range(1, M+1):
        core_alloc = servers_allocation[s-1]
        numa_string = "-C " + ",".join(map(str, core_alloc))
        curr_params = server_params.format(i = str(s), nstring = numa_string, T = str(T))
        # print(curr_params)
        mf.write(curr_params)


    mf.close()

if __name__ == "__main__":

    if(len(sys.argv)!=5):
        print("Incorrect usage!\n Expects 4 parameters. n,m,t,b")
        exit()

    n = int(sys.argv[1])
    m = int(sys.argv[2])
    t = int(sys.argv[3])
    b = int(sys.argv[4])
    generate_manifest(n, m, t, b)