#!/usr/bin/python
#
# Script to run the FIT-to-TCX converter on every new FIT file that is being
# downloaded by Garmin-Extractor.
#
# Adjust the fittotcx path to point to where you have put the FIT-to-TCX files.
#
# Copyright (c) 2012, Gustav Tiger <gustav@tiger.name>
#
# 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 errno
import os
import subprocess
import sys

fittotcx = "/path/to/FIT-to-TCX/fittotcx.py"

def main(action, filename, fit_type):

    # Only new downloads which are activities
    if action != "DOWNLOAD" or fit_type != "4":
        return 0

    basedir  = os.path.split(os.path.dirname(filename))[0]
    basefile = os.path.basename(filename)

    # Create directory
    targetdir = os.path.join(basedir, "activities_tcx")
    try:
        os.mkdir(targetdir)
    except:
        pass

    targetfile = os.path.splitext(basefile)[0] + ".tcx"

    try:
        # Run FIT-to-TCX
        process = subprocess.Popen([fittotcx, filename], stdout=subprocess.PIPE,
                                   stderr=subprocess.PIPE)
        (data, _) = process.communicate()
    except OSError as e:
        print "Could not run Convert to TCX -", fittotcx, \
              "-", errno.errorcode[e.errno], os.strerror(e.errno)
        return -1

    if process.returncode != 0:
        print "Convert to TCX exited with error code", process.returncode
        return -1

    # Write result
    f = file(os.path.join(targetdir, targetfile), 'w')
    f.write(data)
    f.close()
    return 0

if __name__ == "__main__":
    sys.exit(main(*sys.argv[1:]))

