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

import random
import re
import threading
import time
import traceback
from BaseHTTPServer import HTTPServer
from HTTPWebSocketsHandler import HTTPWebSocketsHandler

from platformcode import config, logger
from core import jsontools as json

class MyHTTPServer(HTTPServer):
    daemon_threads = True

    def process_request_thread(self, request, client_address):
        try:
            self.finish_request(request, client_address)
            self.shutdown_request(request)
        except:
            self.handle_error(request, client_address)
            self.shutdown_request(request)

    def process_request(self, request, client_address):
        ID = "%032x" % (random.getrandbits(128))
        t = threading.Thread(target=self.process_request_thread,
                             args=(request, client_address), name=ID)
        t.daemon = self.daemon_threads
        t.start()

    def handle_error(self, request, client_address):
        import traceback
        if not "socket.py" in traceback.format_exc():
            logger.error(traceback.format_exc())


class Handler(HTTPWebSocketsHandler):
    def log_message(self, format, *args):
        # sys.stderr.write("%s - - [%s] %s\n" %(self.client_address[0], self.log_date_time_string(), format%args))
        pass

    def sendMessage(self, message):
        self.send_message(message)

    def do_GET_HTTP(self):
        from platformcode import platformtools
        from platformcode import controllers
        # Control de accesos
        Usuario = "user"
        Password = "password"
        ControlAcceso = False
        import base64
        # Comprueba la clave
        if ControlAcceso and self.headers.getheader('Authorization') <> "Basic " + base64.b64encode(
                                Usuario + ":" + Password):
            self.send_response(401)
            self.send_header('WWW-Authenticate',
                             'Basic realm=\"' + config.get_localized_string(70264) + '\"')
            self.send_header('Content-type', 'text/html; charset=utf-8')
            self.end_headers()
            self.wfile.write('¡Los datos introducidos no son correctos!')
            return

        data = re.compile('/data/([^/]+)/([^/]+)/([^/]+)', re.DOTALL).findall(self.path)
        if data:
            data = data[0]
            if data[0] in platformtools.requests:
                c = platformtools.requests[data[0]]
                response = {"id": data[1], "result": data[2]}
                print response
                c.handler = self
                c.set_data(response)
                while data[0] in platformtools.requests and not self.wfile.closed:
                    time.sleep(1)
        else:
            if self.path == "": self.path = "/"

            # Busca el controller para la url
            controller = controllers.find_controller(self.path)
            if controller:
                try:
                    c = controller(self)
                    c.run(self.path)
                except:
                    if not "socket.py" in traceback.format_exc():
                        logger.error(traceback.format_exc())
                finally:
                    c.__del__()
                    del c
        return

    def on_ws_message(self, message):
        try:
            if message:
                json_message = json.load(message)

            if "request" in json_message:
                t = threading.Thread(target=run, args=[self.controller, json_message["request"].encode("utf8")], name=self.ID)
                t.setDaemon(True)
                t.start()

            elif "data" in json_message:
                if type(json_message["data"]["result"]) == unicode:
                    json_message["data"]["result"] = json_message["data"]["result"].encode("utf8")

                self.controller.data = json_message["data"]

        except:
            logger.error(traceback.format_exc())
            show_error_message(traceback.format_exc())

    def on_ws_connected(self):
        try:
            self.ID = "%032x" % (random.getrandbits(128))
            from platformcode.controllers.html import html
            self.controller = html(self, self.ID)
            self.server.fnc_info()
        except:
            logger.error(traceback.format_exc())

    def on_ws_closed(self):
        self.controller.__del__()
        del self.controller
        self.server.fnc_info()

    def address_string(self):
        # Disable reverse name lookups
        return self.client_address[:2][0]


PORT = config.get_setting("server.port")
server = MyHTTPServer(('', int(PORT)), Handler)

def run(controller, path):
    try:
        controller.run(path)
    except:
        logger.error(traceback.format_exc())
        show_error_message(traceback.format_exc())

def show_error_message(err_info):
    from core import scrapertools
    patron = 'File "' + os.path.join(config.get_runtime_path(), "channels", "").replace("\\", "\\\\") + '([^.]+)\.py"'
    canal = scrapertools.find_single_match(err_info, patron)
    if canal:
        platformtools.dialog_ok(
            "Se ha producido un error en el canal " + canal,
            "Esto puede ser devido a varias razones: \n \
            - El servidor no está disponible, o no esta respondiendo.\n \
            - Cambios en el diseño de la web.\n \
            - Etc...\n \
            Comprueba el log para ver mas detalles del error.")
    else:
        platformtools.dialog_ok(
            "Se ha producido un error en Alfa",
            "Comprueba el log para ver mas detalles del error.")


def start(fnc_info):
    server.fnc_info = fnc_info
    threading.Thread(target=server.serve_forever).start()


def stop():
    server.socket.close()
    server.shutdown()