#!/usr/bin/python
#
# percent_foreground: tests the %[job name] pluign
#
# Test the %[job name] to see if it can bring a background task
# with teh job name to the foreground.
#
#    %[job name], fg, ctrl-c, ctrl-z, sleep
#
import sys, imp, atexit
sys.path.append("/home/courses/cs3214/software/pexpect-dpty/");
import pexpect, shellio, signal, time, os, re, proc_check

#Ensure the shell process is terminated
def force_shell_termination(shell_process):
	c.close(force=True)

#pulling in the regular expression and other definitions
definitions_scriptname = sys.argv[1]
plugin_dir = sys.argv[2]
def_module = imp.load_source('', definitions_scriptname)
logfile = None
if hasattr(def_module, 'logfile'):
    logfile = def_module.logfile

#spawn an instance of the shell
c = pexpect.spawn(def_module.shell + plugin_dir, drainpty=True, logfile=logfile)

atexit.register(force_shell_termination, shell_process=c)

# Create process and then stop it
c.sendline ("sleep 60")
proc_check.wait_until_child_is_in_foreground (c)
c.sendcontrol ('z');

# Make sure it stopped
(jobid, statusmsg, cmdline) = \
        shellio.parse_regular_expression (c, def_module.job_status_regex)
assert statusmsg == def_module.jobs_status_msg['stopped'], "Shell did not report stopped job"

# Run our plugin
c.sendline ("%sleep");

# Make sure the task sleep 60 was foregrounded
assert c.expect_exact(cmdline) == 0, "Shell did not report the job moved into the foreground"

# No reason to keep sleeping
c.sendintr ();

# TEST WITH 2 SLEEPS STOPPED
# Create processes and then stop them
c.sendline ("sleep 30")
proc_check.wait_until_child_is_in_foreground (c)
c.sendcontrol ('z');
(jobid, statusmsg, cmdline) = \
        shellio.parse_regular_expression (c, def_module.job_status_regex)
assert statusmsg == def_module.jobs_status_msg['stopped'], "Shell did not report stopped job"

# 2nd task
c.sendline ("sleep 60")
proc_check.wait_until_child_is_in_foreground (c)
c.sendcontrol ('z');
(jobid2, statusmsg2, cmdline2) = \
        shellio.parse_regular_expression (c, def_module.job_status_regex)
assert statusmsg == def_module.jobs_status_msg['stopped'], "Shell did not report stopped job"


# Get first sleep
c.sendline ("%sleep");
assert c.expect_exact(cmdline) == 0, "Shell did not report the job moved into the foreground"
c.sendintr ();

# Get 2nd sleep
c.sendline ("%sleep");
assert c.expect_exact(cmdline2) == 0, "Shell did not report the job moved into the foreground"
c.sendintr ();

shellio.success()