#!/bin/bash

# Copyright (c) 2009 Braiden Kindt
#
# 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.

set -o pipefail

# create a temporary file
# delegate to "tempfile" command if it exists
function tempfile {
  if [ -x /bin/tempfile ] ; then
    /bin/tempfile
  else 
    echo "/tmp/$1"
  fi
}

# login in to garmin saving cookies
# to file pointed to by $COOKIES
function login {
  if [ -z "$USER" -o -z "$PASSWORD" ] ; then
    return 1
  fi

  # 1) load sign page, and store any intial sesison cookies provided
  # 2) post the login data
  # 3) call the username json service to see if login succeeded

  curl \
	--location \
	--cookie "$COOKIES" \
  	--cookie-jar "$COOKIES" \
	--output /dev/null \
    "http://connect.garmin.com/signin" ;\
  curl \
	--location \
	--cookie "$COOKIES" \
  	--cookie-jar "$COOKIES" \
	--data "login=login&login%3AloginUsernameField=$USER&login%3Apassword=$PASSWORD&login%3AsignInButton=Sign+In&javax.faces.ViewState=j_id1" \
    --output /dev/null \
    "https://connect.garmin.com/signin" ;\
  curl \
	--location \
	--cookie "$COOKIES" \
  	--cookie-jar "$COOKIES" \
	--output - \
	"http://connect.garmin.com/user/username" |\
  grep -i "$USER"
  if [ $? == 0 ] ; then
    return 0
  else
    return 1
  fi
}

# send the specified tcx file to garmin
# assumes we're already logged in
function sendtcx {
  TCX=$1
  curl \
  	--location \
	--write-out "STATUS:%{http_code}" \
	--cookie "$COOKIES" \
  	--cookie-jar "$COOKIES" \
	--form "responseContentType=text%2Fhtml" \
	--form "data=@$TCX" \
    --output - \
    "http://connect.garmin.com/proxy/upload-service-1.1/json/upload/.tcx" |\
  grep "STATUS:200"
}

# given one or more gmn files convert to
# a single tcx and send.
# assumes we're already logged in
function sendgmn {
  RET=0
  TCX=`tempfile garmin-data.tcx`
  if `dirname $0`/gmn2tcx "$@" > $TCX ; then
    if sendtcx $TCX ; then
      rm -f "$@"
    else
      echo "Failed to upload tcx file to garmin."
      RET=1
    fi
  else
    echo "Failed to convert gmn file to tcx."
    RET=2
  fi
  rm -f $TCX
  return $RET
}

# login cookies are saved here
COOKIES=`tempfile garmin-cookies.txt`

# where to find the gmn2tcx conversion script
GMN2TCX=`dirname $0`/gmn2tcx

# where are .gmn files saved
# GARMIN_SAVE_RUNS is used by garmin-tools
if [ -z "$GARMIN_SAVE_RUNS" ] ; then 
  GARMIN_SAVE_RUNS=`pwd`
fi

# We look for pending direct
# which should contian symlinks of
# .gmn ready for upload.
if [ -d "$GARMIN_SAVE_RUNS/pending" ] ; then
  PENDING=`ls "$GARMIN_SAVE_RUNS"/pending/*.gmn 2>/dev/null`
fi

FAILED=false

# if there anything to upload
if [ ! -z "$PENDING" ] ; then
  # attempt to login to garmin
  if login ; then
    cd "$GARMIN_SAVE_RUNS"
    # and upload the queue
    for gmn in $PENDING ; do
      sendgmn $gmn || FAILED=true
    done
    cd - >/dev/null
  else
    echo "Unable to login to Garmin Connect!"
    echo "Make sure you specified user name an password."
    echo "USER=myusername PASSWORD=***** $0"
  fi
fi

if $FAILED ; then
  echo "FAILED to upload one or more activities:"
  ls $GARMIN_SAVE_RUNS/pending
fi

rm -f $COOKIES

$FAILED