#!/usr/bin/python
# Copyright (c) 2000 - 2016 Samsung Electronics Co., Ltd. All rights reserved.
#
# Contact: 
# @author Chulwoo Shin <cw1.shin@samsung.com>
# 
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Contributors:
# - S-Core Co., Ltd

from argparse import ArgumentParser
from argparse import RawDescriptionHelpFormatter
import os
import sys
import json
import logging
from tic import command
from tic.utils import log
from tic.utils import file
from tic.utils import error
from tic.server import tic_server

__version__ = 0.1
__date__ = '2016-11-07'
__updated__ = '2016-11-07'

def create_parser():
    program_name = os.path.basename(sys.argv[0])
    program_version = "%s" % __version__
    program_version_message = '%s %s' % (program_name, program_version)
    program_shortdesc = 'tic-core is a tool for analyzing package dependencies and generating Image' #__import__('__main__').__doc__
    program_epilog = "Try 'tic-core SUBCOMMAND --help' for help on a specific sub-command."
    
    parser = ArgumentParser(description=program_shortdesc, epilog=program_epilog,
                            formatter_class=RawDescriptionHelpFormatter)
    parser.add_argument('-v', '--version', action='version', version=program_version_message)
    subparsers = parser.add_subparsers(dest='subparser_name', help='sub-command help')
        
    # create the parser for the 'analyze' command
    parser_analyze = subparsers.add_parser('analysis', help='analyze install-dependency of packages')
    parser_analyze.add_argument('-r', "--repo", dest="repos", metavar="urls", nargs='+', help="The URL of repository [default: %(default)s]", required=True)
    parser_analyze.add_argument('-o', "--output", dest="output", action="store", help="The result file is distributed in the output path", default=os.getcwd())
    
    parser_download = subparsers.add_parser('download', help='download repodata from repositories')
    parser_download.add_argument('-r', "--repo", dest="repos", metavar="urls", nargs='+', help="The URL of repository [default: %(default)s]", required=True)
    parser_download.add_argument('-o', "--output", dest="output", action="store", help="The result file is distributed in the output path [default: %(default)s]")
    
    parser_start = subparsers.add_parser('start', help='start the tic-core demon on system. port 59001 is used by default ')
    parser_start.add_argument('-p', "--port", dest="port", action="store", help="port number", default=59001)
    
    return parser

def main(argv):
    logger = logging.getLogger('tic')
    try:
        # Setup argument parser
        parser = create_parser()
        # Process arguments
        args = parser.parse_args(argv[1:])
        
        if args.subparser_name == 'analysis':
            view_data = command.analyze(args.repos, None)
            file.write(args.output, json.dumps(view_data))
        elif args.subparser_name == 'download':
            pass
        elif args.subparser_name == 'start':
            tic_server.start(args.port)
        return 0
    except KeyboardInterrupt:
        ### handle keyboard interrupt ###
        return 0
    except error.TICError as err:
        logger.error(err)
    except Exception as ex:
        logger.error(ex)
        return 2
    
if __name__ == "__main__":
    log.setup('tic')
    sys.exit(main(sys.argv))