#!/usr/bin/env python3

# == Rapid Develop Macros in LibreOffice ==

# ~ https://git.cuates.net/elmau/easymacro

# ~ easymacro is free software: you can redistribute it and/or modify
# ~ it under the terms of the GNU General Public License as published by
# ~ the Free Software Foundation, either version 3 of the License, or
# ~ (at your option) any later version.

# ~ easymacro is distributed in the hope that it will be useful,
# ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
# ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# ~ GNU General Public License for more details.

# ~ You should have received a copy of the GNU General Public License
# ~ along with easymacro.  If not, see <https://www.gnu.org/licenses/>.


import getpass
import logging
import os
import platform
import socket
import subprocess
import sys
import time


from typing import Any


import uno

from com.sun.star.beans import PropertyValue


LOG_FORMAT = '%(asctime)s - %(levelname)s - %(message)s'
LOG_DATE = '%d/%m/%Y %H:%M:%S'
logging.addLevelName(logging.ERROR, '\033[1;41mERROR\033[1;0m')
logging.addLevelName(logging.DEBUG, '\x1b[33mDEBUG\033[1;0m')
logging.addLevelName(logging.INFO, '\x1b[32mINFO\033[1;0m')
logging.basicConfig(level=logging.DEBUG, format=LOG_FORMAT, datefmt=LOG_DATE)
log = logging.getLogger(__name__)


# Global variables
OS = platform.system()
DESKTOP = os.environ.get('DESKTOP_SESSION', '')
PC = platform.node()
USER = getpass.getuser()
IS_WIN = OS == 'Windows'
IS_MAC = OS == 'Darwin'
_info_debug = f"Python: {sys.version}\n\n{platform.platform()}\n\n" + '\n'.join(sys.path)


SALT = b'00a1bfb05353bb3fd8e7aa7fe5efdccc'


CTX = uno.getComponentContext()
SM = CTX.getServiceManager()


def debug(*args):
    """
    Show messages debug

    Parameters:
    args (list): iterable messages for show
    """

    data = [str(a) for a in args]
    log.debug('\t'.join(data))
    return


def error(message: Any):
    """
    Show message error

    Parameters:
    message (Any): message show error
    """

    log.error(message)
    return


def create_instance(name: str, with_context: bool=False, args: Any=None) -> Any:
    if with_context:
        instance = SM.createInstanceWithContext(name, CTX)
    elif args:
        instance = SM.createInstanceWithArguments(name, (args,))
    else:
        instance = SM.createInstance(name)
    return instance


def get_app_config(node_name: str, key: str='', update: bool=False):
    name = 'com.sun.star.configuration.ConfigurationProvider'
    service = 'com.sun.star.configuration.ConfigurationAccess'
    if update:
        service = 'com.sun.star.configuration.ConfigurationUpdateAccess'
    cp = create_instance(name, True)
    node = PropertyValue(Name='nodepath', Value=node_name)
    try:
        ca = cp.createInstanceWithArguments(service, (node,))
        if ca and not key:
            return ca
        if ca and ca.hasByName(key):
            return ca.getPropertyValue(key)
    except Exception as e:
        error(e)
        return ''


# Get info LibO
NAME = get_app_config('org.openoffice.Setup/Product', 'ooName')
VERSION = get_app_config('org.openoffice.Setup/Product','ooSetupVersion')
LANGUAGE = get_app_config('org.openoffice.Setup/L10N/', 'ooLocale')
LANG = LANGUAGE.split('-')[0]


INFO_DEBUG = f"{NAME} v{VERSION} {LANGUAGE}\n\n{_info_debug}"


class LOServer(object):
    HOST = 'localhost'
    PORT = '8100'
    ARG = f'socket,host={HOST},port={PORT};urp;StarOffice.ComponentContext'
    CMD = ['soffice',
        '-env:SingleAppInstance=false',
        '-env:UserInstallation=file:///tmp/LO_Process8100',
        '--headless', '--norestore', '--invisible',
        f'--accept={ARG}']

    def __init__(self):
        self._server = None
        self._ctx = None
        self._sm = None
        self._start_server()
        self._init_values()

    def _init_values(self):
        global CTX
        global SM

        if not self.is_running:
            return

        ctx = uno.getComponentContext()
        service = 'com.sun.star.bridge.UnoUrlResolver'
        resolver = ctx.ServiceManager.createInstanceWithContext(service, ctx)
        self._ctx = resolver.resolve('uno:{}'.format(self.ARG))
        self._sm = self._ctx.getServiceManager()
        CTX = self._ctx
        SM = self._sm
        return

    @property
    def is_running(self):
        try:
            s = socket.create_connection((self.HOST, self.PORT), 5.0)
            s.close()
            debug('LibreOffice is running...')
            return True
        except ConnectionRefusedError:
            return False

    def _start_server(self):
        if self.is_running:
            return

        for i in range(3):
            self._server = subprocess.Popen(self.CMD,
                stdout=subprocess.PIPE, stderr=subprocess.PIPE)
            time.sleep(3)
            if self.is_running:
                break
        return

    def stop(self):
        if self._server is None:
            print('Search pgrep soffice')
        else:
            self._server.terminate()
        debug('LibreOffice is stop...')
        return

    def create_instance(self, name, with_context=True):
        if with_context:
            instance = self._sm.createInstanceWithContext(name, self._ctx)
        else:
            instance = self._sm.createInstance(name)
        return instance