#!/srv/projects/coils-code.git/bin/python
#
# Copyright (c) 2012, 2015
#  Adam Tauno Williams <awilliam@whitemice.org>
#
# 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 coils.core import AdministrativeContext, BLOBManager, initialize_COILS
import getopt
import sys
import os


def usage():
    print """
    --help      Display this helpful messages
    --execute   Execute the fix.
    """
    return


def main(argv):

    # Process command line arguements
    if not argv:
        usage()
        sys.exit(2)
    try:
        opts, args = getopt.getopt(
            argv,
            "he",
            ["help", "execute", ]
        )
    except getopt.GetoptError, e:
        print(e)
        usage()
        sys.exit(2)

    enable_fix = False
    for opt, arg in opts:
        if opt in ("-h", "--help"):
            usage()
            sys.exit(0)
        elif opt in ("-e", "--execute"):
            enable_fix = True

    # Initialize COILs
    initialize_COILS(
        {
            'log_file': '{0}/coils.log'.format(os.getenv('HOME'), )
        }
    )
    ctx = AdministrativeContext()

    if not enable_fix:
        print('Execution of fix not requested, see the --execute option.')
        sys.exit(0)

    pids = dict()

    total_count = 0
    orphan_size = 0
    orphan_count = 0
    lost_count = 0
    guids = BLOBManager.List('wf/m')
    for guid in guids:
        total_count += 1
        message = ctx.run_command('message::get', uuid=guid, )
        if not message:
            filename = 'wf/m/{0}'.format(guid)
            rfile = BLOBManager.Open(filename, 'rb')
            if rfile:
                rfile.seek(0, 2)
                orphan_size += rfile.tell()
                BLOBManager.Close(rfile)
                orphan_count += 1
                BLOBManager.Delete(filename)
        else:
            if message.process_id in pids:
                pids[message.process_id] += message.size
            else:
                pids[message.process_id] = message.size

    print(
        'Total: {0} Orphans: {1} Size: {2} Lost: {3}'
        .format(
            total_count, orphan_count, orphan_size, lost_count,
        )
    )
    sys.exit(0)

if __name__ == '__main__':

    main(sys.argv[1:])
