#!/usr/bin/env python
#
# Manta - Structural Variant and Indel Caller
# Copyright (c) 2013-2016 Illumina, Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
#

"""
sort manta edge runtime logs
"""

import os, sys


def ensureDir(d):
    """
    make directory if it doesn't already exist, raise exception if
    something else is in the way:
    """
    if os.path.exists(d):
        if not os.path.isdir(d) :
            raise Exception("Can't create directory: %s" % (d))
    else :
        os.makedirs(d)



def listInputLogs(logListFile,args) :
    for arg in args :
        yield arg
    if logListFile is None : return
    for logFile in open(logListFile) :
        yield logFile.strip()



def getOptions() :

    from optparse import OptionParser

    usage = "usage: %prog [options] -o output_log [input_log [input_log...]]"
    parser = OptionParser(usage=usage)

    parser.add_option("-o", dest="outFile",default=False,
                      help="sorted output filename (required)")
    parser.add_option("-f", dest="logListFile",
                      help="File listing input log files, one file per line. These will be used in addition to any provided directly on the command-line")

    (options,args) = parser.parse_args()

    if len(args) == 0 and not options.logListFile:
        parser.print_help()
        sys.exit(2)

    if options.outFile is None :
        parser.print_help()
        sys.exit(2)

    # validate input:
    ensureDir(os.path.dirname(os.path.abspath(options.outFile)))

    if options.logListFile is not None :
        if not os.path.exists(options.logListFile) :
            raise Exception("Can't find log list file: " + options.logListFile)

    for logFile in listInputLogs(options.logListFile,args) :
        if not os.path.isfile(logFile) :
            raise Exception("Can't find input log file: " +logFile)

    return (options,args)



def main() :

    (options,args) = getOptions()
    slog = []

    for logFile in listInputLogs(options.logListFile,args) :
        for line in open(logFile) :
            w1=float(line.split('\t',2)[1])
            slog.append((w1,line))

    slog.sort(reverse=True)

    ofp = open(options.outFile,"w")

    for (w1,line) in slog :
        ofp.write(line)


main()