#!/usr/bin/python

from subprocess import *
import os, sys

print "Welcome to jackctl. 'h' at the prompt gives help...."

def jackctl_help():
  print """jackctl help....hello!!! 
commands:
a - enter audio select mode (default)
m - enter midi select mode
l - list (audio or MIDI, depends on mode) ports
d <num> <num> - disconnect numbered ports
<num> <num> - connect numbered ports
q - quit
f - grow fruit out of your computer"""

listp = []
mode = 'a'  #### start out in audio mode 

def pager(string):
  out = string.splitlines()
  for x in range(len(out)):
    sys.stdout.write("%s\n" % out[x])
    if x % 22 == 21:
      sys.stdout.write("hit return for more")
      raw_input()
  
def get_list():
  global listp, mode
  output = ''
  nr_lines = 0
  if mode == 'a':
    listp = Popen(['jack_lsp',''],stdout=PIPE).communicate()[0].split('\n')[:-1]
    listp_conn = Popen(['jack_lsp','-c'], stdout=PIPE).communicate()[0].split('\n')[:-1]
    for i in listp_conn:
      if (' ' in i) or ('\t' in i):
        output = output + "   %s) %s\n" % (listp.index(i.lstrip()), i.lstrip())
      else:
        output = output + "%s) %s\n" % (listp.index(i), i)
      nr_lines += 1
  elif mode == 'm':
    listp = Popen(['aconnect', '-li'], stdout=PIPE).communicate()[0].split('\n')[:-1]
    output = output + "READABLE PORTS:\n"
    for i in listp: 
      output = output + i + "\n"
      nr_lines += 1
    listq = Popen(['aconnect', '-lo'], stdout=PIPE).communicate()[0].split('\n')[:-1]      
    output = output + "WRITEABLE PORTS:\n"
    for i in listq: 
      output = output + i + "\n"
      nr_lines += 1
    nr_lines += 2
  pager(output)

def outtahere():
  print "Goodbye!"
  exit()
  
while 1:
  try:
    if mode == 'a':
      prompt = raw_input('jackctl(audio)--> ')
    elif mode == 'm':
      prompt = raw_input('jackctl(midi)--> ')
    if prompt == 'h':
      jackctl_help()
    elif prompt == 'l':
      get_list()
    elif prompt == 'a':
      mode = 'a'
    elif prompt == 'm':
      mode = 'm'
    elif prompt == 'q':
      break
    else:
        ports = prompt.split()
        if ports[0] == 'd':
          print "disconnecting specified ports"
          if mode == 'a':
            Popen(['jack_disconnect','%s' % listp[int(ports[1])], '%s' % listp[int(ports[2])]]).communicate()
          elif mode == 'm':
            Popen(['aconnect', '-d', '%s' % ports[1], '%s' % ports[2]]).communicate() 
        else:
          if mode == 'a' and (int(ports[0]) < 4) and (int(ports[1]) < 4):
            print """you shouldn't try connect either connections that give 
either feedback or connections that are nonsensical"""
          else:
            print "connecting specified ports"
            if mode == 'a':
              Popen(['jack_connect','%s' % listp[int(ports[0])], '%s' % listp[int(ports[1])]]).communicate()
            elif mode == 'm':
              Popen(['aconnect', '%s' % ports[0], '%s' % ports[1]]).communicate()
  except EOFError:
    print "\nGoodbye!"
    exit()
  except:
    print "nonsense!!!"
    pass

outtahere()