#!/usr/bin/env python
# -*- coding: UTF-8 -*-
#

import config
from rpi_envsens.dht import dht_22
from rpi_envsens.bmp import bmp_180
import helpers
import garage_protocol
import gui
import logging
import os
import report
import socket_protocol
import task
import tcp_socket
import time
import wetation_protocol
import wx

############################################################################################################################
#                                                                                                                          #
# Application Structure                                                                                                    #
#                                                                                                                          #
#  +-----------------------------+   +------------------------------+   +---------------------------+                      #
#  | Data Request Task (1s)      |   | Data Receive Callback        |   | GUI Update WX-IDLE-TASK   |                      #
#  | Counter 0-9                 |   |                              |   |                           |                      #
#  |                             |   | Append data to ValueStorage  |   | - Update all GUI Elements |                      #
#  | *: Request door_pos         |   +------------------------------+   | - Check Data Status to    |                      #
#  | 0: Request env-data-in bmp  |                                      |   mark all fragile con-   |                      #
#  | 1: Request env-data-in dht  |                                      |   tent                    |                      #
#  | 5: Request env-data-out bmp |                                      +---------------------------+                      #
#  | 6: Request env-data-out dht |                                                                                         #
#  | 9: Reconnect if needed      |                                                                                         #
#  +-----------------------------+                                                                                         #
#                                                                                                                          #
############################################################################################################################


try:
    from config import APP_NAME as ROOT_LOGGER_NAME
except ImportError:
    ROOT_LOGGER_NAME = 'root'

logger = logging.getLogger(ROOT_LOGGER_NAME).getChild(__name__)


class ValueStorage(dict):
    MAX_AGE = 60        # Seconds

    DATA_KEY_GATE_POSITION = 'gate_position'
    DATA_KEY_HUMIDITY_IN = 'humidity_in'
    DATA_KEY_HUMIDITY_OUT = 'humidity_out'
    DATA_KEY_PRESSURE_IN = 'pressure_in'
    DATA_KEY_PRESSURE_OUT = 'pressure_out'
    DATA_KEY_TEMPERATURE_IN = 'temp_in'
    DATA_KEY_TEMPERATURE_OUT = 'temp_out'
    DATA_KEY_2ND_TEMPERATURE_IN = '2nd_temp_in'
    DATA_KEY_2ND_TEMPERATURE_OUT = '2nd_temp_out'

    FORMATTER_TEMP = ('%.1f °C', '-.- °C')
    FORMATTER_HUMI = ('%.1f %%', '-.- %')
    FORMATTER_PRES = ('%4d hPa', '- hPa')

    DATA_KEYS_CONT_STAT = [DATA_KEY_HUMIDITY_IN, DATA_KEY_HUMIDITY_OUT, DATA_KEY_PRESSURE_IN, DATA_KEY_PRESSURE_OUT, DATA_KEY_TEMPERATURE_IN, DATA_KEY_TEMPERATURE_OUT, DATA_KEY_2ND_TEMPERATURE_IN, DATA_KEY_2ND_TEMPERATURE_OUT]

    def append(self, drk, value):
        tm = time.time()
        logger.info('Value stored (%s): %s', drk, repr(value))
        if drk in self.DATA_KEYS_CONT_STAT:
            self[drk] = (value.mean, tm)
            if drk + '.min' not in self or value.min < self[drk + '.min'][0]:
                self[drk + '.min'] = (value.min, tm)
            if drk + '.max' not in self or value.max < self[drk + '.max'][0]:
                self[drk + '.max'] = (value.max, tm)
        else:
            self[drk] = (value, tm)

    def reset_min_max(self, data_key):
        del self[data_key + '.min']
        del self[data_key + '.max']

    def __get_formatter__(self, key):
        return {
            self.DATA_KEY_2ND_TEMPERATURE_IN: self.FORMATTER_TEMP,
            self.DATA_KEY_2ND_TEMPERATURE_OUT: self.FORMATTER_TEMP,
            self.DATA_KEY_HUMIDITY_IN: self.FORMATTER_HUMI,
            self.DATA_KEY_HUMIDITY_OUT: self.FORMATTER_HUMI,
            self.DATA_KEY_PRESSURE_IN: self.FORMATTER_PRES,
            self.DATA_KEY_PRESSURE_OUT: self.FORMATTER_PRES,
            self.DATA_KEY_TEMPERATURE_IN: self.FORMATTER_TEMP,
            self.DATA_KEY_TEMPERATURE_OUT: self.FORMATTER_TEMP,
        }.get(key)

    def get_validated(self, key, value_type=None, default=None):
        tm = time.time()
        fallback = {
            self.DATA_KEY_TEMPERATURE_IN: self.DATA_KEY_2ND_TEMPERATURE_IN,
            self.DATA_KEY_TEMPERATURE_OUT: self.DATA_KEY_2ND_TEMPERATURE_OUT,
        }.get(key)
        if value_type in ['min', 'max']:
            key = key + '.' + value_type
        value = dict.get(self, key)
        if value is None and fallback is not None:
            value = dict.get(self, fallback)
        if value is None:
            return default
        if tm - value[1] <= self.MAX_AGE:
            if key == self.DATA_KEY_GATE_POSITION:
                return int(value[0] * 50)
            else:
                return value[0]
        else:
            return default

    def get(self, key, value_type=None, formatted=True, default=None):
        formatter = self.__get_formatter__(key)
        value = self.get_validated(key, value_type, default=default)
        if not formatted:
            return value
        else:
            if formatter is None:
                return default
            else:
                try:
                    return formatter[0] % value
                except Exception:
                    return formatter[1]


class Wetation(gui.Wetation):
    SRC_ID_GARAGE = 0
    SRC_ID_IN = 1
    SRC_ID_OUT = 2
    ALL_SRC_IDS = [SRC_ID_GARAGE, SRC_ID_IN, SRC_ID_OUT, ]

    SRC_NAMES = {
        SRC_ID_GARAGE: u'garage',
        SRC_ID_IN: u'wet-in',
        SRC_ID_OUT: u'wet-out',
    }

    SRC_IPS = {
        SRC_ID_GARAGE: config.server_garage_ip,
        SRC_ID_IN: config.server_in_ip,
        SRC_ID_OUT: config.server_out_ip,
    }

    SRC_PORTS = {
        SRC_ID_GARAGE: config.server_garage_port,
        SRC_ID_IN: config.server_in_port,
        SRC_ID_OUT: config.server_out_port,
    }

    SRC_SECRETS = {
        SRC_ID_GARAGE: config.server_garage_secret,
        SRC_ID_IN: config.server_in_secret,
        SRC_ID_OUT: config.server_out_secret,
    }

    SRC_CLASSES = {
        SRC_ID_GARAGE: garage_protocol.my_base_protocol_tcp,
        SRC_ID_IN: wetation_protocol.my_base_protocol_tcp,
        SRC_ID_OUT: wetation_protocol.my_base_protocol_tcp,
    }

    def __init__(self, *args, **kwds):

        gui.Wetation.__init__(self, *args, **kwds)
        self.Bind(wx.EVT_IDLE, self.gui_update)
        self.in_temperature_min.Bind(wx.EVT_LEFT_DOWN, self.reset_in_temp_minmax_evt)
        self.in_temperature_max.Bind(wx.EVT_LEFT_DOWN, self.reset_in_temp_minmax_evt)
        self.out_temperature_min.Bind(wx.EVT_LEFT_DOWN, self.reset_out_temp_minmax_evt)
        self.out_temperature_max.Bind(wx.EVT_LEFT_DOWN, self.reset_out_temp_minmax_evt)
        self.ShowFullScreen(config.FULL_SCREEN)
        #
        self.__src__ = {}
        self.__value_storage__ = ValueStorage()
        self.__init_communication__()
        #
        self.__drt_cnt__ = -1
        self.__task_1s__ = task.periodic(1, self.data_request_task)

    def __init_communication__(self):
        #
        # Start TCP-Clients
        for src_id in self.ALL_SRC_IDS:
            cn = self.SRC_NAMES[src_id]
            c_tcp = tcp_socket.tcp_client_stp(self.SRC_IPS[src_id], self.SRC_PORTS[src_id], channel_name=cn)
            self.__src__[src_id] = self.SRC_CLASSES[src_id](c_tcp, secret=self.SRC_SECRETS[src_id], auto_auth=True, channel_name=cn)
            #
            self.__src__[src_id].register_callback(None, None, self.data_receive_callback, src_id)

    def gate_oc_evt(self, event):
        r = wx.MessageDialog(
            self,
            "Soll das Garagentor betätigt werden?",
            "Garage",
            wx.YES_NO | wx.NO_DEFAULT | wx.ICON_WARNING
        ).ShowModal()
        if r == wx.ID_YES:
            logger.info("Gate open/close request")
            self.__src__[self.SRC_ID_GARAGE].send(socket_protocol.SID_EXECUTE_REQUEST, garage_protocol.OPEN_CLOSE_GATE, None)
        event.Skip()

    def reset_in_temp_minmax_evt(self, event):
        self.__value_storage__.reset_min_max(ValueStorage.DATA_KEY_TEMPERATURE_IN)
        self.__value_storage__.reset_min_max(ValueStorage.DATA_KEY_2ND_TEMPERATURE_IN)
        event.Skip()

    def reset_out_temp_minmax_evt(self, event):
        self.__value_storage__.reset_min_max(ValueStorage.DATA_KEY_TEMPERATURE_OUT)
        self.__value_storage__.reset_min_max(ValueStorage.DATA_KEY_2ND_TEMPERATURE_OUT)
        event.Skip()

    def data_request_task(self, rt):
        (rt)
        if self.__drt_cnt__ < 9:
            self.__drt_cnt__ += 1
        else:
            self.__drt_cnt__ = 0
        logger.debug('data_request_task stated with cnt = %d', self.__drt_cnt__)
        #
        # Request GATE_POSITION
        #
        self.__src__[self.SRC_ID_GARAGE].send(service_id=socket_protocol.SID_READ_REQUEST, data_id=garage_protocol.GATE_POSITION, data=None)
        #
        # Request WET-OUT-DATA
        #
        if self.__drt_cnt__ == 0:
            self.__src__[self.SRC_ID_OUT].send(service_id=socket_protocol.SID_READ_REQUEST, data_id=wetation_protocol.ENVDATA_STATISTIC_BMP, data=None)
        elif self.__drt_cnt__ == 1:
            self.__src__[self.SRC_ID_OUT].send(service_id=socket_protocol.SID_READ_REQUEST, data_id=wetation_protocol.ENVDATA_STATISTIC_DHT, data=None)
        #
        # Request WET-IN-DATA
        #
        elif self.__drt_cnt__ == 5:
            self.__src__[self.SRC_ID_IN].send(service_id=socket_protocol.SID_READ_REQUEST, data_id=wetation_protocol.ENVDATA_STATISTIC_BMP, data=None)
        elif self.__drt_cnt__ == 6:
            self.__src__[self.SRC_ID_IN].send(service_id=socket_protocol.SID_READ_REQUEST, data_id=wetation_protocol.ENVDATA_STATISTIC_DHT, data=None)
        elif self.__drt_cnt__ == 9:
            self.__reconnect__()
        #

    def __reconnect__(self):
        for src_id in self.ALL_SRC_IDS:
            if not self.__src__[src_id].is_connected():
                logger.warning("Trying to reconnect prot_id %s", self.SRC_NAMES.get(src_id, 'Unknown'))
                self.__src__[src_id].reconnect()

    def __data_receive_key__(self, src_id, data_id, key=None, default_value=None):
        return {
            self.SRC_ID_GARAGE: {
                garage_protocol.GATE_POSITION: {
                    None: ValueStorage.DATA_KEY_GATE_POSITION,
                }
            },
            self.SRC_ID_IN: {
                wetation_protocol.ENVDATA_STATISTIC_BMP: {
                    bmp_180.KEY_PRESSURE: ValueStorage.DATA_KEY_PRESSURE_IN,
                    bmp_180.KEY_TEMPERATURE: ValueStorage.DATA_KEY_2ND_TEMPERATURE_IN
                },
                wetation_protocol.ENVDATA_STATISTIC_DHT: {
                    dht_22.KEY_HUMIDITY: ValueStorage.DATA_KEY_HUMIDITY_IN,
                    dht_22.KEY_TEMPERATURE: ValueStorage.DATA_KEY_TEMPERATURE_IN
                },
            },
            self.SRC_ID_OUT: {
                wetation_protocol.ENVDATA_STATISTIC_BMP: {
                    bmp_180.KEY_PRESSURE: ValueStorage.DATA_KEY_PRESSURE_OUT,
                    bmp_180.KEY_TEMPERATURE: ValueStorage.DATA_KEY_2ND_TEMPERATURE_OUT
                },
                wetation_protocol.ENVDATA_STATISTIC_DHT: {
                    dht_22.KEY_HUMIDITY: ValueStorage.DATA_KEY_HUMIDITY_OUT,
                    dht_22.KEY_TEMPERATURE: ValueStorage.DATA_KEY_TEMPERATURE_OUT
                },
            }
        }.get(src_id, {}).get(data_id, {}).get(key, default_value)

    def data_receive_callback(self, data, src_id):
        if src_id in [self.SRC_ID_IN, self.SRC_ID_OUT] and data.get_data_id() in [wetation_protocol.ENVDATA_STATISTIC_DHT, wetation_protocol.ENVDATA_STATISTIC_BMP]:
            try:
                for key in data.get_data():
                    if key != bmp_180.KEY_TIME:
                        drk = self.__data_receive_key__(src_id, data.get_data_id(), key)
                        if drk is not None:
                            self.__process_rx_data__(
                                drk,
                                helpers.continues_statistic(**data.get_data()[key])
                            )
                        else:
                            self.__warning_rx_data__('Unknown RX-Data', data, src_id)
            except TypeError as e:
                self.__warning_rx_data__('Wront DataType in RX-Data (%s)' % e, data, src_id)
        else:
            drk = self.__data_receive_key__(src_id, data.get_data_id())
            if drk is not None:
                self.__process_rx_data__(
                    drk,
                    data.get_data()
                )
            else:
                self.__warning_rx_data__('Unknown RX-Data', data, src_id)

    def __process_rx_data__(self, drk, data):
        self.__value_storage__.append(drk, data)

    def __warning_rx_data__(self, desc, data, src_id):
        logger.warning('%s from %s: %s', desc, self.SRC_NAMES.get(src_id, 'Unknown'), repr(data))

    def __check_data_status__(self):
        if dict.get(self.__value_storage__, ValueStorage.DATA_KEY_TEMPERATURE_IN) is None and dict.get(self.__value_storage__, ValueStorage.DATA_KEY_2ND_TEMPERATURE_IN) is not None:
            self.in_temperature.SetBackgroundColour((255, 255, 200, 255))
        else:
            self.in_temperature.SetBackgroundColour((250, 249, 255, 255))
        if dict.get(self.__value_storage__, ValueStorage.DATA_KEY_TEMPERATURE_OUT) is None and dict.get(self.__value_storage__, ValueStorage.DATA_KEY_2ND_TEMPERATURE_OUT) is not None:
            self.out_temperature.SetBackgroundColour((255, 255, 200, 255))
        else:
            self.out_temperature.SetBackgroundColour((250, 249, 255, 255))
        if dict.get(self.__value_storage__, ValueStorage.DATA_KEY_GATE_POSITION) is None:
            self.heading_garage.SetBackgroundColour((142, 35, 35, 255))
        else:
            self.heading_garage.SetBackgroundColour((35, 35, 142, 255))

    def gui_update(self, event):
        #
        # TIME and DATE
        #
        self.time.SetLabel(time.strftime("%H:%M"))
        self.date.SetLabel(time.strftime("%d.%m.%Y"))
        #
        update_list = [
            # WET-OUT
            (self.out_humidity.SetLabel, [ValueStorage.DATA_KEY_HUMIDITY_OUT, 'mean', True]),
            (self.out_pressure.SetLabel, [ValueStorage.DATA_KEY_PRESSURE_OUT, 'mean', True]),
            (self.out_temperature.SetLabel, [ValueStorage.DATA_KEY_TEMPERATURE_OUT, 'mean', True]),
            (self.out_temperature_max.SetLabel, [ValueStorage.DATA_KEY_TEMPERATURE_OUT, 'max', True]),
            (self.out_temperature_min.SetLabel, [ValueStorage.DATA_KEY_TEMPERATURE_OUT, 'min', True]),
            # WET-IN
            (self.in_humidity.SetLabel, [ValueStorage.DATA_KEY_HUMIDITY_IN, 'mean', True]),
            (self.in_pressure.SetLabel, [ValueStorage.DATA_KEY_PRESSURE_IN, 'mean', True]),
            (self.in_temperature.SetLabel, [ValueStorage.DATA_KEY_TEMPERATURE_IN, 'mean', True]),
            (self.in_temperature_max.SetLabel, [ValueStorage.DATA_KEY_TEMPERATURE_IN, 'max', True]),
            (self.in_temperature_min.SetLabel, [ValueStorage.DATA_KEY_TEMPERATURE_IN, 'min', True]),
            # GATE
            (self.gate_position.SetValue, [ValueStorage.DATA_KEY_GATE_POSITION, None, False, 50])
        ]
        #
        for func, args in update_list:
            func(self.__value_storage__.get(*args))
        self.__check_data_status__()
        #
        #
        self.Layout()
        event.Skip()

    def run(self):
        self.__task_1s__.run()

    def close(self):
        self.__task_1s__.stop()
        self.__task_1s__.join()

    def __del__(self):
        self.close()


class MyApp(wx.App):
    def OnInit(self):
        self.frame = Wetation(None, wx.ID_ANY, "")
        self.SetTopWindow(self.frame)
        self.frame.Show()
        return True


if __name__ == "__main__":
    report.appLoggingConfigure(os.path.dirname(__file__), config.LOGTARGET, ((config.APP_NAME, config.LOGLVL), ), fmt=config.formatter, host=config.LOGHOST, port=config.LOGPORT)
    #
    app = MyApp(0)
    app.frame.run()
    app.MainLoop()
    app.frame.close()