import sys

import os

import os.path

import shutil

import tarfile

import zipfile

import urllib

import platform

import patch

join = os.path.join

system_str = platform.system()

URLS = {

    #'': {'setup': '', 'url':'', 'local':''},

    'DISTRIBUTE': {'setup': 'distribute', 'url':'http://pypi.python.org/packages/source/d/distribute/distribute-0.6.24.tar.gz', 'local':"distribute-0.6.24.tar.gz", 'install': {'method': 'pip', 'option_str': None, 'dict_extra_env': None}},

    'PYCRYPTO': {'setup': 'pycrypto', 'url':'https://ftp.dlitz.net/pub/dlitz/crypto/pycrypto/pycrypto-2.6.tar.gz', 'local':'pycrypto-2.6.tar.gz', 'install': {'method': 'pip', 'option_str': None, 'dict_extra_env': None}},

    'SSH': {'setup': 'ssh', 'url':'http://pypi.python.org/packages/source/s/ssh/ssh-1.7.14.tar.gz#md5=4cdd0549ef4699bd67b96264d3b21427', 'local':'ssh-1.7.14.tar.gz', 'install': {'method': 'pip', 'option_str': None, 'dict_extra_env': None}},

    'FABRIC': {'setup': 'fabric', 'url':'https://github.com/fabric/fabric/tarball/1.4.2', 'local':'fabric-1.4.2.tar.gz', 'install': {'method': 'pip', 'option_str': None, 'dict_extra_env': None}},

    'MERCURIAL': {'setup': 'mercurial', 'url':'http://mercurial.selenic.com/release/mercurial-2.2.3.tar.gz', 'local':'mercurial-2.2.3.tar.gz', 'install': {'method': 'pip', 'option_str': None, 'dict_extra_env': None}},

    'REQUEST': {'setup': 'requests', 'url':'https://github.com/kennethreitz/requests/tarball/v0.13.3', 'local':'requests-v0.13.3.tar.gz', 'install' : {'method':'pip', 'option_str': None, 'dict_extra_env': None}},

}

class ResourcesEnv(object):

    def __init__(self, src_base, urls, normal_installs):

        self.src_base = src_base

        self.URLS = {}

        self.__init_url(urls)

        self.NORMAL_INSTALL = normal_installs

    def get_src_base_path(self, fpath):

        return os.path.abspath(os.path.join(self.src_base, fpath)).replace("\\","/")

    def __add_package_def(self, key, dict):

        self.URLS[key] = dict

    def __init_url(self, urls):

        for key, url_dict in urls.items():

            url_dict_copy = url_dict.copy()

            if not url_dict['url'].startswith("http://"):

                url_dict_copy['url'] = self.get_src_base_path(url_dict['url'])

            url_dict_copy['local'] = self.get_src_base_path(url_dict['local'])            

            self.__add_package_def(key, url_dict_copy )

def ensure_dir(dir, logger):

    if not os.path.exists(dir):

        logger.notify('Creating directory %s' % dir)

        os.makedirs(dir)

def extend_parser(parser):    

    parser.add_option(

        '--index-url',

        metavar='INDEX_URL',

        dest='index_url',

        default='http://pypi.python.org/simple/',

        help='base URL of Python Package Index')

    parser.add_option(

        '--type-install',

        metavar='type_install',

        dest='type_install',

        help='type install : local, url, setup - default : local')

    parser.add_option(

        '--ignore-packages',

        metavar='ignore_packages',

        dest='ignore_packages',

        default=None,

        help='list of comma separated keys for package to ignore')

def lib_generate_install_methods(path_locations, src_base, Logger, call_subprocess, normal_installs, options_to_add=None, urls= None):

    all_urls = URLS.copy()

    if urls is not None:

        all_urls.update(urls)

    res_env = ResourcesEnv(src_base, all_urls, normal_installs)

    def filter_python_develop(line):

        if not line.strip():

            return Logger.DEBUG

        for prefix in ['Searching for', 'Reading ', 'Best match: ', 'Processing ',

                       'Moving ', 'Adding ', 'running ', 'writing ', 'Creating ',

                       'creating ', 'Copying ']:

            if line.startswith(prefix):

                return Logger.DEBUG

        return Logger.NOTIFY

    def normal_install(key, method, option_str, extra_env, res_source_key, home_dir, tmp_dir, res_env, logger, call_subprocess):

        logger.notify("Install %s from %s with %s" % (key,res_env.URLS[key][res_source_key],method))

        if method == 'pip':

            if sys.platform == 'win32':

                args = [os.path.abspath(os.path.join(home_dir, 'Scripts', 'pip')), 'install', res_env.URLS[key][res_source_key]]

            else:

                args = [os.path.abspath(os.path.join(home_dir, 'bin', 'pip')), 'install', res_env.URLS[key][res_source_key]]

            if option_str :

                args.insert(4,option_str)

            call_subprocess(args,

                    cwd=os.path.abspath(tmp_dir),

                    filter_stdout=filter_python_develop,

                    show_stdout=True,

                    extra_env=extra_env)

        else:

            if sys.platform == 'win32':

                args = [os.path.abspath(os.path.join(home_dir, 'Scripts', 'easy_install')), res_env.URLS[key][res_source_key]]

            else:

                args = [os.path.abspath(os.path.join(home_dir, 'bin', 'easy_install')), res_env.URLS[key][res_source_key]]

            if option_str :

                args.insert(1,option_str)

            call_subprocess(args,

                    cwd=os.path.abspath(tmp_dir),

                    filter_stdout=filter_python_develop,

                    show_stdout=True,

                    extra_env=extra_env)            

    def after_install(options, home_dir):

        global logger

        verbosity = options.verbose - options.quiet

        logger = Logger([(Logger.level_for_integer(2-verbosity), sys.stdout)])

        home_dir, lib_dir, inc_dir, bin_dir = path_locations(home_dir)

        base_dir = os.path.dirname(home_dir)

        src_dir = os.path.join(home_dir, 'src')

        tmp_dir = os.path.join(home_dir, 'tmp')

        ensure_dir(src_dir, logger)

        ensure_dir(tmp_dir, logger)

        system_str = platform.system()

        res_source_key = getattr(options, 'type_install') if hasattr(options, 'type_install') else 'local' #.get('type_install', 'local')

        if res_source_key is None:

            res_source_key = local

        ignore_packages = []

        if system_str == 'Windows':

            default_install_options = {'method': 'easy_install', 'option_str': None, 'dict_extra_env': None}

        else:

            default_install_options = {'method': 'pip', 'option_str': None, 'dict_extra_env': None}

        if options.ignore_packages :

            ignore_packages = options.ignore_packages.split(",")

        logger.indent += 2

        try:    

            for key in res_env.NORMAL_INSTALL:

                if key not in res_env.URLS:

                    logger.notify("%s not found in def : passing" % (key,))

                install_options = res_env.URLS[key].get('install', None)

                if install_options is None:

                    install_options = default_install_options

                method = install_options.get('method', default_install_options['method'])

                option_str = install_options.get('option_str', default_install_options['option_str'])

                extra_env = install_options.get('dict_extra_env', default_install_options['dict_extra_env'])

                #isinstance(lst, (list, tuple))

                if key not in ignore_packages:

                    if callable(method):

                        method(option_str, extra_env, res_source_key, home_dir, lib_dir, tmp_dir, src_dir, res_env, logger, call_subprocess, filter_python_develop)

                    elif method in globals() and callable(globals()[method]) and method not in ['pip', 'easy_install']:  

                        globals()[method](option_str, extra_env, res_source_key, home_dir, lib_dir, tmp_dir, src_dir, res_env, logger, call_subprocess, filter_python_develop)

                    else:

                        normal_install(key, method, option_str, extra_env, res_source_key, home_dir, tmp_dir, res_env, logger, call_subprocess)

            logger.notify("Clear source dir")

            shutil.rmtree(src_dir)

        finally:

            logger.indent -= 2

        script_dir = join(base_dir, bin_dir)

        logger.notify('Run "%s Package" to install new packages that provide builds'

                      % join(script_dir, 'easy_install'))

    def adjust_options(options, args):

        if not options_to_add:

            pass

        for opt in options_to_add:

            test_opt = opt.split('=',1)[0]

            if not hasattr(options,test_opt) or getattr(options, test_opt) is None:                

                setattr(options, test_opt,opt.split('=',1)[1] if "=" in opt else True)

    return adjust_options, extend_parser, after_install