# -*- coding: utf-8 -*-

"""
Created on 29-03-2013

@author: citan
"""

import os
import os.path
import time
import cPickle as pickle
import platform

from pimonitor.PM import PM
from pimonitor.PMConnection import PMConnection
from pimonitor.PMDemoConnection import PMDemoConnection
from pimonitor.PMXmlParser import PMXmlParser
from pimonitor.ui.PMScreen import PMScreen
from pimonitor.ui.PMSingleWindow import PMSingleWindow


if __name__ == '__main__':

    print platform.system()

    if platform.system() == "Linux":
        from evdev import InputDevice, list_devices

        devices = map(InputDevice, list_devices())
        eventX = ""
        for dev in devices:
            if dev.name == "ADS7846 Touchscreen":
                eventX = dev.fn

        os.environ["SDL_FBDEV"] = "/dev/fb1"
        os.environ["SDL_MOUSEDRV"] = "TSLIB"
        os.environ["SDL_MOUSEDEV"] = eventX

    screen = PMScreen()
    log_id = PM.log('Application started')

    screen.render()

    parser = PMXmlParser()

    supported_parameters = []

    if os.path.isfile("data/data.pkl"):
        serializedDataFile = open("data/data.pkl", "rb")
        defined_parameters = pickle.load(serializedDataFile)
        serializedDataFile.close()
    else:
        defined_parameters = parser.parse("logger_METRIC_EN_v263.xml")
    # output = open("data/data.pkl", "wb")
    #pickle.dump(defined_parameters, output, -1)
    #output.close()

    if platform.system() == "Linux":
        connection = PMConnection()
    else:
        connection = PMDemoConnection()

    while True:
        try:
            connection.open()
            ecu_packet = connection.init(1)
            tcu_packet = connection.init(2)

            if ecu_packet is None or tcu_packet is None:
                PM.log("Can't get initial data", log_id)
                continue
            PM.log("ECU ROM ID: " + ecu_packet.get_rom_id())
            PM.log("TCU ROM ID: " + tcu_packet.get_rom_id())
            for p in defined_parameters:
                if (p.get_target() & 0x1 == 0x1) and p.is_supported(ecu_packet.to_bytes()[4:]):
                    if not filter(lambda x: x.get_id() == p.get_id(), supported_parameters):
                        p.switch_to_ecu_id(ecu_packet.get_rom_id())
                        supported_parameters.append(p)

            for p in defined_parameters:
                if ((p.get_target() & 0x2 == 0x2) or (p.get_target() & 0x1 == 0x1)) and p.is_supported(
                        tcu_packet.to_bytes()[4:]):
                    if not filter(lambda x: x.get_id() == p.get_id(), supported_parameters):
                        p.switch_to_ecu_id(tcu_packet.get_rom_id())
                        supported_parameters.append(p)

            for p in defined_parameters:
                p_deps = p.get_dependencies()
                if not p_deps:
                    continue

                deps_found = ()
                for dep in p_deps:
                    deps_found = filter(lambda x: x.get_id() == dep, supported_parameters)
                    if not deps_found:
                        break

                    if len(deps_found) > 1:
                        raise Exception('duplicated dependencies', deps_found)

                    p.add_parameter(deps_found[0])

                if deps_found:
                    supported_parameters.append(p)

            supported_parameters = sorted(supported_parameters)

            for p in supported_parameters:
                window = PMSingleWindow(p)
                screen.add_window(window)

            screen.next_window()

            while True:
                window = screen.get_window()
                param = window.get_parameter()
                parameters = param.get_parameters()
                if parameters:
                    packets = connection.read_parameters(parameters)
                    window.set_packets(packets)
                else:
                    packet = connection.read_parameter(param)
                    window.set_packets([packet])

                screen.render()

        except IOError as e:
            PM.log('I/O error: {0} {1}'.format(e.errno, e.strerror), log_id)
            if connection is not None:
                connection.close()
                time.sleep(3)
            continue

    screen.close()