import argparse
import os

from mitmproxy import options


CONFIG_PATH = os.path.join(options.CA_DIR, "config.yaml")


def common_options(parser, opts):
    parser.add_argument(
        '--version',
        action='store_true',
        help="show version number and exit",
        dest='version',
    )
    parser.add_argument(
        '--options',
        action='store_true',
        help="Show all options and their default values",
    )
    parser.add_argument(
        '--commands',
        action='store_true',
        help="Show all commands and their signatures",
    )
    parser.add_argument(
        "--conf",
        type=str, dest="conf", default=CONFIG_PATH,
        metavar="PATH",
        help="Read options from a configuration file"
    )
    parser.add_argument(
        "--set",
        type=str, dest="setoptions", default=[],
        action="append",
        metavar="option[=value]",
        help="""
            Set an option. When the value is omitted, booleans are set to true,
            strings and integers are set to None (if permitted), and sequences
            are emptied. Boolean values can be true, false or toggle.
        """
    )
    parser.add_argument(
        "-q", "--quiet",
        action="store_true", dest="quiet",
        help="Quiet."
    )
    parser.add_argument(
        "-v", "--verbose",
        action="store_const", dest="verbose", const='debug',
        help="Increase log verbosity."
    )

    # Basic options
    opts.make_parser(parser, "mode", short="m")
    opts.make_parser(parser, "anticache")
    opts.make_parser(parser, "showhost")
    opts.make_parser(parser, "rfile", metavar="PATH", short="r")
    opts.make_parser(parser, "scripts", metavar="SCRIPT", short="s")
    opts.make_parser(parser, "stickycookie", metavar="FILTER")
    opts.make_parser(parser, "stickyauth", metavar="FILTER")
    opts.make_parser(parser, "save_stream_file", metavar="PATH", short="w")
    opts.make_parser(parser, "anticomp")

    # Proxy options
    group = parser.add_argument_group("Proxy Options")
    opts.make_parser(group, "listen_host", metavar="HOST")
    opts.make_parser(group, "listen_port", metavar="PORT", short="p")
    opts.make_parser(group, "server", short="n")
    opts.make_parser(group, "ignore_hosts", metavar="HOST")
    opts.make_parser(group, "tcp_hosts", metavar="HOST")
    opts.make_parser(group, "upstream_auth", metavar="USER:PASS")
    opts.make_parser(group, "proxyauth", metavar="SPEC")
    opts.make_parser(group, "rawtcp")
    opts.make_parser(group, "http2")

    # Proxy SSL options
    group = parser.add_argument_group("SSL")
    opts.make_parser(group, "certs", metavar="SPEC")
    opts.make_parser(group, "ssl_insecure", short="k")

    # Client replay
    group = parser.add_argument_group("Client Replay")
    opts.make_parser(group, "client_replay", metavar="PATH", short="C")

    # Server replay
    group = parser.add_argument_group("Server Replay")
    opts.make_parser(group, "server_replay", metavar="PATH", short="S")
    opts.make_parser(group, "server_replay_kill_extra")
    opts.make_parser(group, "server_replay_nopop")

    # Replacements
    group = parser.add_argument_group("Replacements")
    opts.make_parser(group, "replacements", metavar="PATTERN", short="R")

    # Set headers
    group = parser.add_argument_group("Set Headers")
    opts.make_parser(group, "setheaders", metavar="PATTERN", short="H")


def mitmproxy(opts):
    parser = argparse.ArgumentParser(usage="%(prog)s [options]")
    common_options(parser, opts)

    opts.make_parser(parser, "console_layout")
    opts.make_parser(parser, "console_layout_headers")
    group = parser.add_argument_group(
        "Filters",
        "See help in mitmproxy for filter expression syntax."
    )
    opts.make_parser(group, "intercept", metavar="FILTER")
    opts.make_parser(group, "view_filter", metavar="FILTER")
    return parser


def mitmdump(opts):
    parser = argparse.ArgumentParser(usage="%(prog)s [options] [filter]")

    common_options(parser, opts)
    opts.make_parser(parser, "flow_detail", metavar = "LEVEL")
    parser.add_argument(
        'filter_args',
        nargs="...",
        help="""
            Filter expression, equivalent to setting both the view_filter
            and save_stream_filter options.
        """
    )
    return parser


def mitmweb(opts):
    parser = argparse.ArgumentParser(usage="%(prog)s [options]")

    group = parser.add_argument_group("Mitmweb")
    opts.make_parser(group, "web_open_browser")
    opts.make_parser(group, "web_port", metavar="PORT")
    opts.make_parser(group, "web_iface", metavar="INTERFACE")

    common_options(parser, opts)
    group = parser.add_argument_group(
        "Filters",
        "See help in mitmproxy for filter expression syntax."
    )
    opts.make_parser(group, "intercept", metavar="FILTER")
    return parser
