# -*- coding: utf8 -*-
# Copyright (c) 2021 Niklas Rosenstein
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.

import argparse
import sys

import docspec

try:
    from termcolor import colored
except ImportError:

    def colored(s, *args, **kwargs):  # type: ignore
        return str(s)


_COLOR_MAP = {
    docspec.Module: "magenta",
    docspec.Class: "cyan",
    docspec.Function: "yellow",
    docspec.Variable: "blue",
}


def _dump_tree(obj: docspec.ApiObject, depth: int = 0) -> None:
    color = _COLOR_MAP.get(type(obj))
    type_name = colored(type(obj).__name__.lower(), color)
    print("| " * depth + type_name, obj.name)
    for member in getattr(obj, "members", []):
        _dump_tree(member, depth + 1)


def main() -> None:
    parser = argparse.ArgumentParser()
    parser.add_argument("file", nargs="?")
    parser.add_argument("-t", "--tty", action="store_true", help="Read from stdin even if it is a TTY.")
    parser.add_argument("-m", "--multiple", action="store_true", help="Load a module per line from the input.")
    parser.add_argument(
        "--dump-tree",
        action="store_true",
        help="Dump a simplified tree representation of the parsed module(s) to stdout. Supports colored output if the "
        '"termcolor" module is installed.',
    )
    args = parser.parse_args()

    if not args.file and sys.stdin.isatty() and not args.tty:
        parser.print_usage()
        sys.exit(1)

    if args.multiple:
        modules = docspec.load_modules(args.file or sys.stdin)
    else:
        modules = [docspec.load_module(args.file or sys.stdin)]

    if args.dump_tree:
        for module in modules:
            _dump_tree(module)
    else:
        for module in modules:
            docspec.dump_module(module, sys.stdout)


if __name__ == "__main__":
    main()