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

import sys
import os
import lib
import api
import inspect
from glob import glob
from core.alert import messages
from core.alert import info
from core.alert import warn
from core._die import __die_failure
from core.compatible import is_windows
from core.config import _core_config
from core.config_builder import _core_default_config
from core.config_builder import _builder
from shutil import copyfile


def load_all_graphs():
    """
    load all available graphs

    Returns:
        an array of graph names
    """
    graph_names = []
    for _lib in glob(os.path.dirname(inspect.getfile(lib)) + '/*/*/engine.py'):
        if os.path.dirname(_lib).rsplit('\\' if is_windows() else '/')[
                -2] == "graph" and _lib + '_graph' not in graph_names:
            _lib = _lib.rsplit('\\' if is_windows() else '/')[-2]
            graph_names.append(_lib + '_graph')
    return graph_names


def load_all_modules():
    """
    load all available modules

    Returns:
        an array of all module names
    """
    # Search for Modules
    module_names = []
    for _lib in glob(os.path.dirname(inspect.getfile(lib)) + '/*/*/engine.py'):
        libname = _lib.rsplit('\\' if is_windows() else '/')[-2]
        category = _lib.rsplit('\\' if is_windows() else '/')[-3]
        if category != 'graph' and libname + '_' + category not in module_names:
            module_names.append(libname + '_' + category)
    module_names.append('all')
    return module_names


def load_all_method_args(language, API=False):
    """
    load all ARGS method for each module

    Args:
        language: language
        API: API Flag (default False)

    Returns:
        all ARGS method in JSON
    """
    module_names = []
    modules_args = {}
    # get module names
    for _lib in glob(os.path.dirname(inspect.getfile(lib)) + '/*/*/engine.py'):
        _lib = _lib.replace('/', '.').replace('\\', '.')
        if '.lib.brute.' in _lib or '.lib.scan.' in _lib or '.lib.vuln.' in _lib:
            _lib = 'lib.' + _lib.rsplit('.lib.')[-1].rsplit('.py')[0]
            if _lib not in module_names:
                module_names.append(_lib)
    # get args
    res = ""
    for imodule in module_names:
        _ERROR = False
        try:
            extra_requirements_dict = getattr(__import__(imodule, fromlist=['extra_requirements_dict']),
                                              'extra_requirements_dict')
        except:
            warn(messages(language, "module_args_error").format(imodule))
            _ERROR = True
        if not _ERROR:
            imodule_args = extra_requirements_dict()
            modules_args[imodule] = []
            for imodule_arg in imodule_args:
                if API:
                    res += imodule_arg + "=" + \
                        ",".join(map(str, imodule_args[imodule_arg])) + "\n"
                modules_args[imodule].append(imodule_arg)
    if API:
        return res
    for imodule in modules_args:
        info(imodule.rsplit('.')[2] + '_' + imodule.rsplit('.')[1] + ' --> '
             + ", ".join(modules_args[imodule]))
    return module_names


def __check_external_modules():
    """
    check external libraries if they are installed

    Returns:
        True if success otherwise None
    """
    external_modules = ["argparse", "netaddr", "requests", "paramiko", "texttable", "socks", "win_inet_pton",
                        "flask", "sqlalchemy"]
    for module in external_modules:
        try:
            __import__(module)
        except:
            __die_failure("pip install -r requirements.txt ---> " +
                          module + " not installed!")

    default_config = _builder(_core_config(), _core_default_config())

    if not os.path.exists(default_config["home_path"]):
        try:
            os.mkdir(default_config["home_path"])
            os.mkdir(default_config["tmp_path"])
            os.mkdir(default_config["results_path"])
        except:
            __die_failure("cannot access the directory {0}".format(
                default_config["home_path"]))
    if not os.path.exists(default_config["tmp_path"]):
        try:
            os.mkdir(default_config["tmp_path"])
        except:
            __die_failure("cannot access the directory {0}".format(
                default_config["results_path"]))
    if not os.path.exists(default_config["results_path"]):
        try:
            os.mkdir(default_config["results_path"])
        except:
            __die_failure("cannot access the directory {0}".format(
                default_config["results_path"]))
    if default_config["database_type"] == "sqlite":
        try:
            if os.path.isfile(default_config["home_path"]+"/"+default_config["database_name"]):
                pass
            else:
                from database.sqlite_create import sqlite_create_tables
                sqlite_create_tables()
        except:
            __die_failure("cannot access the directory {0}".format(
                default_config["home_path"]))
    elif default_config["database_type"] == "mysql":
        try:
            from database.mysql_create import mysql_create_tables, mysql_create_database
            mysql_create_database()
            mysql_create_tables()
        except:
            __die_failure(messages("en", "database_connection_failed"))
    else:
        __die_failure(messages("en", "invalid_database"))
    return True


def load_file_path():
    """
    load home path

    Returns:
        value of home path
    """
    return _builder(_core_config(), _core_default_config())["home_path"]