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)



c.timeout = 5


# run a command
c.sendline("tempCon -F 32")


# Test Fahrenheit
assert c.expect("Your temperature in Fahrenheit is: 32.00") == 0, "Shell did not print expected prompt"
assert c.expect("Your temperature in celcius is: 0.00") == 0, "Shell did not print expected prompt"
assert c.expect("Your temperature in rankine is: 491.67") == 0, "Shell did not print expected prompt"
assert c.expect("Your temperature in kelvin is: 273.15") == 0, "Shell did not print expected prompt"


c.sendline("tempCon -R 212")


# Test rankine
assert c.expect("Your temperature in Fahrenheit is: -247.67") == 0, "Shell did not print expected prompt"
assert c.expect("Your temperature in celcius is: -149.82") == 0, "Shell did not print expected prompt"
assert c.expect("Your temperature in rankine is: 212.00") == 0, "Shell did not print expected prompt"
assert c.expect("Your temperature in kelvin is: 117.78") == 0, "Shell did not print expected prompt"


c.sendline("tempCon -K 100")

# Test kelvin
assert c.expect("Your temperature in Fahrenheit is: -279.67") == 0, "Shell did not print expected prompt"
assert c.expect("Your temperature in celcius is: -173.15") == 0, "Shell did not print expected prompt"
assert c.expect("Your temperature in rankine is: 180.00") == 0, "Shell did not print expected prompt"
assert c.expect("Your temperature in kelvin is: 100.00") == 0, "Shell did not print expected prompt"


c.sendline("tempCon -C 50")

#Test celcius
assert c.expect("Your temperature in Fahrenheit is: 122.00") == 0, "Shell did not print expected prompt"
assert c.expect("Your temperature in celcius is: 50.00") == 0, "Shell did not print expected prompt"
assert c.expect("Your temperature in rankine is: 581.67") == 0, "Shell did not print expected prompt"
assert c.expect("Your temperature in kelvin is: 323.15") == 0, "Shell did not print expected prompt"

c.sendline("tempCon -n")

assert c.expect("Try -k for kelvin, -C for celcius, -F for Fahrenheit, -R for rankine") == 0, "Shell did not print expected prompt"

c.sendline("tempCon -n 12")
#wrong input
assert c.expect("You gave this plugin the wrong parameters") == 0, "Shell did not print expected prompt"