from subprocess import *
from threading import Thread
import time

class Modell(Thread):
    PATH_OV = 'meta/dist/designer-Release/openvibe-designer.sh'
    PATH_FILES = 'Projekte/OpenViBE_visual_BCI-master/openvibe_visual_bci/'

    def __init__(self,c):
        Thread.__init__(self)
        self.controller  = c
        self.aktiv= True
        self.openVibeAktiv = False
    
    def stop(self):
        print("stop thread")
        self.aktiv = False
    
    def setFunktion(self, func, args=None, kwargs=None):
        self.func = func
        self.args = args or []
        self.kwargs = kwargs or {}
    
    def run(self): 
        print("start thread")
        #self.aktiv = True
        t = Thread(target=self.func, args=self.args, kwargs=self.kwargs)
        t.setDaemon(True)
        t.start()
        
        while self.aktiv:
            time.sleep(0.1)
        
    
    def startCopySpelling(self):
        print("start copySpelling")
        self.controller.resetInfo()
        self.controller.addInfoText('start copyspelling -- ')
        self.controller.setTitle("Copy Spelling")
        path = self.PATH_FILES + 'p300-visual-1-acquisition.xml'
        process = Popen(['bash', self.PATH_OV, '--play', path, '--no-gui'], 
                                stdout=PIPE,
                                universal_newlines=True)   
        self.openVibeAktiv = True                 
        while True:
            output = process.stdout.readline()
            print(output.strip())
            x = output.find("schlagwort?")
            y = output.find("Error")
            if(x != -1):
                print("Training finished")
                process.terminate()
                self.controller.addInfoText('finished Copyspelling\n')
                self.controller.stop("filterXdawn")
                break
            elif(y != -1 ):
                print("Error occured")
                self.controller.changeScreen("StartPage")
                self.controller.addInfoText("Fehler beim Copyspelling aufgetaucht\n")
                process.terminate()
                self.controller.stop()
                break

            
        self.controller.stop()
        #self.killProzess()
        #self.controller.filterXdawn()
    
    def trainXDawn(self):
        print("start training Xdawn")
        self.controller.addInfoText('start training XDawn -- ')
        path = self.PATH_FILES + 'p300-visual-2-train-xDAWN.xml'
        #path = 'Projekte/test.xml'
        process = Popen(['bash', self.PATH_OV, '--play', path, '--no-gui'], 
                                stdout=PIPE,
                                universal_newlines=True)   
        self.openVibeAktiv = True                             
        while self.aktiv:
            output = process.stdout.readline()
            print(output.strip())
            x = output.find("Training finished and saved")
            y = output.find("Error")
            if(x != -1):
                print("Training finished")
                process.terminate()
                self.controller.addInfoText('finished Training\n')
                self.controller.stop("filterClassic")
                break
            elif(y != -1 ):
                print("Error occured")
                self.controller.changeScreen("StartPage")
                self.controller.addInfoText("Fehler beim XDawn Training aufgetaucht\n")
                self.controller.stop()
                process.terminate()
                break
        
        self.controller.stop()

        #self.controller.filterClassic()


    def trainClassifier(self):
        print("start training Classifier")
        self.controller.addInfoText("start training with Classifier -- ")

        path = self.PATH_FILES + 'p300-visual-3-train-classifier.xml'
        process = Popen(['bash', self.PATH_OV, '--play', path, '--no-gui'], 
                                stdout=PIPE,
                                universal_newlines=True)       
        self.openVibeAktiv = True      
        counter = 0                   
        while True:
            output = process.stdout.readline()
            print(output.strip())
            x = output.find("aka Classifier trainer")
            accuracy = output.find("Training set accuracy is")
            y = output.find("Error")
            if(x != -1):
                counter = counter +1
                #counter = 18
                if(counter >= 17):
                    print("Training finished")
                    self.controller.addInfoText('finished Training\n')
                    process.terminate()
                    self.controller.stop("save")
                    break
            elif(y != -1 ):
                print("Error occured")
                self.controller.changeScreen("StartPage")
                self.controller.addInfoText("Fehler beim Classifier Training aufgetaucht\n")
                process.terminate()
                break
            elif(accuracy != -1):
                print("ACCURACY" + output)

        self.controller.changeScreen("StartPage")
        self.controller.stop()

    def freeSpelling(self):
        #bei error auch abrechen?
        print("start freeSpelling")
        self.controller.resetInfo()
        self.controller.addInfoText('start free spelling -- ')
        path = self.PATH_FILES + 'p300-visual-4-online.xml'
        process = Popen(['bash', self.PATH_OV, '--play', path, '--no-gui'], 
                                stdout=PIPE,
                                universal_newlines=True)        
        self.openVibeAktiv = True                        
        while True:
            output = process.stdout.readline()
            print(output.strip())
            y = output.find("Error")
            x = output.find("Schlagwort")
            if(x != -1):
                print("End Spelling")
                process.terminate()
                self.controller.addInfoText('finished freespelling\n')
                self.controller.changeScreen("StartPage")
                self.controller.stop()
                break
            elif(y != -1 ):
                print("Error occured")
                self.controller.changeScreen("StartPage")
                self.controller.addInfoText("Fehler beim Freespelling aufgetaucht\n")
                process.terminate()
                self.controller.stop()
                break

        self.controller.changeScreen("StartPage")
        self.controller.stop()

    def killProzess(self):
        if(self.openVibeAktiv):
            self.openVibeAktiv = False
            print('start killing')
            pidOV = 0
            items = []

            prozesse = Popen(["ps", "-e"], stdout=PIPE).communicate()[0].strip()
            zeilen = prozesse.split('\n')
            for z in zeilen:
                if(z.find("openvibe-design") != -1):
                    z = z.strip()
                    items = z.split(' ')
                    pidOV = items[0]
            
            #kill -TERM veranlasst dem Prozess sich selbst zu beenden (nicht erzwungen)
            Popen(["kill", "-TERM", str(pidOV)], stdout=PIPE).communicate()


            print("killed openvibe-designer")