#!/usr/bin/python

from subprocess import *
import os, sys, re

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, also toggles between
    jack-midi and alsa-midi connections
l - list (audio or MIDI, depends on mode) ports
<num> <num> - connect numbered ports
d <num> <num> - disconnect 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, listp2
  output = ''
  if mode == 'a' or mode == 'm':
    listp = Popen(['jack_lsp','-t'],stdout=PIPE).communicate()[0]
    listp1 = re.findall(r'.*\n\t.*\n', listp) 
 #   print
 #   print "listp1 is %s" % listp1
    listp_conn = Popen(['jack_lsp','-c', '-t'], stdout=PIPE).communicate()[0]
    listp_conn1 = re.findall(r'.*\n(?:[\t ]+.*\n)*', listp_conn)
#    print
#    print "listp_conn1 is %s" % listp_conn1
    ##### sort audio and MIDI:
    if mode == 'a':
      listp2 = filter(lambda(x): 'midi' not in x, listp1)
      listp_conn2 = filter(lambda(x): 'midi' not in x, listp_conn1)
    elif mode == 'm':
      listp2 = filter(lambda(x): 'midi' in x, listp1)
      listp_conn2 = filter(lambda(x): 'midi' in x, listp_conn1)
#    print 
#    print "listp2 is %s" % listp2
#    print "listp_conn2 is %s" % listp_conn2
    ##### strip type info:
    for x in range(len(listp2)):
      listp2[x] = listp2[x].split('\n')[0]
    for x in range(len(listp_conn2)):
	  #### last field is type, remove it:
      listp_conn2[x] = '\n'.join(listp_conn2[x].split('\n')[:-1]) 
#    print
#    print "now listp2 is %s" % listp2
#    print "now listp_conn2 is %s" % listp_conn2
    ##### format for output:
    for i in listp_conn2:
      i = ' '.join(i.split('\n')[:-1])

      if ' ' in i: #### if connected, that is
        connection = i.split()
#        print 
#        print "connection is %s" % connection
        output = output + "%s) %s\n" % (listp2.index(connection[0].strip()), connection[0].lstrip())
        output = output + "   %s) %s\n" % (listp2.index(connection[1].strip()), connection[1].lstrip())
      else:
        output = output + "%s) %s\n" % (listp2.index(i), i)
  elif mode == 'm-alsa':
    listp = Popen(['aconnect', '-li'], stdout=PIPE).communicate()[0].split('\n')[:-1]
    output = output + "READABLE PORTS:\n"
    for i in listp: 
      output = output + i + "\n"
    listq = Popen(['aconnect', '-lo'], stdout=PIPE).communicate()[0].split('\n')[:-1]      
    output = output + "WRITEABLE PORTS:\n"
    for i in listq: 
      output = output + i + "\n"
  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)--> ')
    elif mode == 'm-alsa':
      prompt = raw_input('jackctl(alsa-midi)--> ')
    if prompt == 'h':
      jackctl_help()
    elif prompt == 'l':
      get_list()
    elif prompt == 'a':
      mode = 'a'
    elif prompt == 'm':
      if mode == 'm':
        mode = 'm-alsa'
      else:
        mode = 'm'
    elif prompt == 'q':
      break
    elif prompt == 'f':
      print "it was just a joke...you took me seriously? really?"
    elif prompt == '':
      continue
    else:
        ports = prompt.split()
        if ports[0] == 'd':
          print "disconnecting specified ports"
          if mode == 'a' or mode == 'm':
            Popen(['jack_disconnect','%s' % listp2[int(ports[1])], '%s' % listp2[int(ports[2])]]).communicate()
          elif mode == 'm-alsa':
            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' or mode == 'm':
              Popen(['jack_connect','%s' % listp2[int(ports[0])], '%s' % listp2[int(ports[1])]]).communicate()
            elif mode == 'm-alsa':
              Popen(['aconnect', '%s' % ports[0], '%s' % ports[1]]).communicate()
  except EOFError:
    print "\nGoodbye!"
    exit()
  except:
    print "nonsense!!!"
    pass

outtahere()