#!/usr/bin/python

"""

Automatic provides generator for Node.js libraries.

Taken from package.json.  See `man npm-json` for details.

"""

# Copyright 2012 T.C. Hollingsworth <tchollingsworth@gmail.com>

# Copyright 2017 Tomas Tomecek <ttomecek@redhat.com>

#

# 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.

from __future__ import print_function

import os

import sys

import json

provides = set()

def handle_package_json(path, bundled=False):

    """

    process package.json file available on path, print RPM dependency based on name and version

    """

    if not path.endswith('package.json') or not os.path.isfile(path):

        return

    fh = open(path)

    metadata = json.load(fh)

    fh.close()

    try:

        if metadata['private']:

            return

    except KeyError:

        pass

    try:

        name = metadata["name"]

    except KeyError:

        return

    try:

        version = metadata["version"]

    except KeyError:

        return

    if bundled:

        value = "bundled(nodejs-%s) = %s" % (name, version)

    else:

        value = "rh-nodejs10-npm(%s) = %s" % (name, version)

    provides.add(value)

def handle_module(path, bundled):

    """

    process npm module and all its bundled dependencies

    """

    handle_package_json(path, bundled=bundled)

    if not os.path.isdir(path):

        path = os.path.dirname(path)

    node_modules_dir_candidate = os.path.join(path, "node_modules")

    if os.path.isdir(node_modules_dir_candidate):

        for module_path in os.listdir(node_modules_dir_candidate):

            module_abs_path = os.path.join(node_modules_dir_candidate, module_path)

            # skip modules which are linked against system module

            if not os.path.islink(module_abs_path):

                p_json_file = os.path.join(module_abs_path, "package.json")

                handle_module(p_json_file, bundled=True)

def main():

    """ read list of package.json paths from stdin """

    paths = [path.rstrip() for path in sys.stdin.readlines()]

    for path in paths:

        handle_module(path, bundled=False)

    for provide in sorted(provides):

        print(provide)

if __name__ == '__main__':

    main()