import time
from constants import decodeAOString, CHATMSG, TEXT_COLOR, C_RAINBOW
from os.path import exists
from PyQt4 import QtCore

class TCPThread(QtCore.QThread):
    connectionError = QtCore.pyqtSignal(str, str, str)
    MS_Chat = QtCore.pyqtSignal(list)
    newChar = QtCore.pyqtSignal(int)
    newBackground = QtCore.pyqtSignal(str, bool)
    IC_Log = QtCore.pyqtSignal(str)
    OOC_Log = QtCore.pyqtSignal(str)
    charSlots = QtCore.pyqtSignal(list)
    showCharSelect = QtCore.pyqtSignal()
    loadAllEvidence = QtCore.pyqtSignal(list)
    rainbowColor = QtCore.pyqtSignal(str)
    updatePlayerList = QtCore.pyqtSignal(str, int, int, str)
    timerUpdate = QtCore.pyqtSignal(int, int, int)
    authStatusChanged = QtCore.pyqtSignal(int)
    updateAreaList = QtCore.pyqtSignal(list)
    setCharList = QtCore.pyqtSignal(list)
    playMusicRequested = QtCore.pyqtSignal(str, int, str)
    modCall = QtCore.pyqtSignal(str)
    discardMessageFromQueue = QtCore.pyqtSignal()

    send_attempts = 0
    max_attempts = 5
    stop_now = False

    def __init__(self, parent):
        super(TCPThread, self).__init__(parent)
        self.parent = parent

    def run(self):
        pingtimer = 150
        rainbow = 0
        sendtick = 0
        while True:
            if self.stop_now:
                self.parent.tcp.close()
                self.parent.tcp = None
                self.quit()
                return

            if self.parent.disconnectNow:
                self.parent.disconnectCommon()
                self.quit()
                return
            pingtimer -= 1

            if pingtimer == 0:
                # pingbefore = time.time()
                self.parent.tcp.send('CH#%')
                pingtimer = 150

            if self.parent.mChatMessage[TEXT_COLOR] == str(C_RAINBOW):
                rainbow += 5
                if rainbow > 255:
                    rainbow = 0
                self.rainbowColor.emit('background-color: rgba(0, 0, 0, 0); color: hsv(%s,255,255)' % rainbow)

            if sendtick:
                sendtick -= 1
            if self.parent.messageQueue and not sendtick:
                self.parent.tcp.send(self.parent.messageQueue[0])
                sendtick = 4

            error, total = self.parent.tcp.recv()
            if error == -2:
                # if the message can't be sent, discard it
                if sendtick == 4:
                    self.send_attempts += 1
                    if self.send_attempts >= self.max_attempts:
                        self.send_attempts = 0
                        #print "[warning] message discarded"
                        self.discardMessageFromQueue.emit()
                continue
            elif error == -1:
                self.parent.willDisconnect = True
                self.connectionError.emit('critical', 'Connection lost', "%s connection to server lost." % ("WebSocket" if self.parent.tcp.isWS else "TCP"))
                self.quit()
                return
            elif error == -3:
                self.parent.willDisconnect = True
                self.connectionError.emit('critical', 'Connection lost', "There was a critical connection failure. Please check your internet connection.\n\nDetails: %s." % total)
                self.quit()
                return
            else:
                self.send_attempts = 0

            handlePackets(self, total)
            self.msleep(5)

    def stop(self):
        self.stop_now = True

def handlePackets(caller, total, record=True):
    # Record the packet if demos enabled
    if record and caller.parent.demoRecorder:
        caller.parent.demoRecorder.record(total)
        
    for network in total:
        header = network[0]
        if header == 'MS':
            if len(network) < 15:
                print '[warning]', 'Malformed or incomplete MS packet was received'
                continue
            
            if isinstance(network[CHATMSG], unicode):
                network[CHATMSG] = decodeAOString(network[CHATMSG])
            else:
                network[CHATMSG] = decodeAOString(network[CHATMSG].decode('utf-8'))
                
            caller.MS_Chat.emit(network)
            
        elif header == 'MC':
            del network[0]
            music = decodeAOString(network[0])
            if not music: return
            charid = int(network[1])
            showname = decodeAOString(network[2].decode("utf-8")) if len(network) > 2 else None
            caller.playMusicRequested.emit(music, charid, showname)
            # TODO: TEMPORARY, TRYING TO FIND A WAY TO GET THIS OUT OF HERE WITHOUT FREEZING THE GUI THREAD
            caller.parent.playMusic(music)

        elif header == 'BN':
            caller.newBackground.emit(network[1].lower(), True)
        
        elif header == 'CT':
            name = decodeAOString(network[1].decode('utf-8'))
            chatmsg = decodeAOString(network[2].decode('utf-8').replace("\n", "<br />"))
            caller.OOC_Log.emit("<b>%s:</b> %s" % (name, chatmsg.replace("<", "&lt;").replace("&lt;br />","<br />") if len(network) > 3 and network[3] == "0" else chatmsg))
        
        elif header == 'PV':
            caller.newChar.emit(int(network[3]))
        
        elif header == 'LE':
            del network[0]
            caller.loadAllEvidence.emit([evi.split('&') for evi in network])
                
        elif header == 'CharsCheck':
            del network[0]
            caller.charSlots.emit(network)
        
        elif header == 'RT':
            testimony = network[1]
            variant = int(network[2]) if testimony == 'judgeruling' else 0
            caller.parent.wtceSignal.emit(testimony, variant)
        
        elif header == 'HP':
            kind = int(network[1])
            health = int(network[2])
            caller.parent.healthbars.emit(kind, health)

        elif header == 'AUTH': # login status (AO 2.9)
            caller.authStatusChanged.emit(int(network[1]))
            
        # elif header == "CHECK": #ping
            # pingafter = time.time()
            # caller.parent.gotPing.emit(int((pingafter - pingbefore)*1000))
        
        elif header == 'DONE':
            caller.showCharSelect.emit()
            
        elif header == 'PR':
            del network[0]
            caller.updatePlayerList.emit(network[0], 0, int(network[1]), "")
            
        elif header == 'PU':
            del network[0]
            caller.updatePlayerList.emit(network[0], 1, int(network[1]), network[2].decode('utf-8'))
        
        elif header == 'ARUP':
            del network[0]
            caller.updateAreaList.emit(network)
        
        elif header == 'TI':
            del network[0]
            timer_id = int(network[0])
            command = int(network[1])
            time_ms = 0
            if len(network) == 3:
                time_ms = int(network[2])
            caller.timerUpdate.emit(command, timer_id, time_ms)
            
        elif header == 'SC':
            # Used in demos
            del network[0]
            caller.setCharList.emit([[char.split('&')[0].decode('utf-8'), 0, "male", True] for char in network])
        
        elif header == 'KK':
            reason = network[1]
            caller.connectionError.emit('critical', 'Connection lost', 'You were kicked from the server. (%s)' % reason)
        
        elif header == 'KB':
            reason = network[1]
            caller.connectionError.emit('critical', 'Connection lost', 'You have been banned from the server. (%s)' % reason)

        elif header == 'BB': # message popup (AO 2.9)
            message = network[1]
            caller.connectionError.emit('information', 'Message from server', message)

        elif header == 'ZZ':
            caller.modCall.emit(network[1].replace("\n", "<br />"))