#!/bin/bash

#############################################################################################
# Google Earth KML to Air Navigation Pro Waypoint
# v0.1a
# Licensed: GPL v2
# Author: Sergi Coll (sergi at nit.cat)
# 
# No support in your own risk.
# 
# Changelog
#
# 20101207: 0.1a: very alpha pre-release

# For KMZ files first rename to zip extension and unzip example.kmz.zip then execute ./kml2airnavpro doc.kml <friendly_name>
# next upload airnav_<friendly_name>_waypoint.txt with your favorite browse to iphone/ipad.
#
#############################################################################################

#Global Var.

EXPECTED_ARGS=2

if [ $# -ne $EXPECTED_ARGS ]
then
  echo "Usage: `basename $0` kml_file friendly_name"
  exit $E_BADARGS
fi

INPUT_FILE=$1
OUTPUT_FILE=$2.txt 

#Init dest.file
rm -rf $OUTPUT_FILE

# Header File waypoint AirNavigation Pro.

Header_Items="waypoint_id waypoint_name waypoint_type waypoint_longitude waypoint_latitude waypoint_elevation waypoint_country waypoint_state waypoint_channel waypoint_frequency main_runway_orientation"

for i in $Header_Items; do echo -n -e "$i\t" >>$OUTPUT_FILE; done
echo >>$OUTPUT_FILE

#

# Processing source

while read linia
do

if [ "$UBICACIO" = "1" ]; then

   match_name="<name>" 
   a=$linia; [[ "$a" =~ "${match_name}" ]] && waypoint_name=${linia//\<name\>} && waypoint_name=${waypoint_name//\<\/name\>};
   waypoint_id=${waypoint_name:0:3};    

   match_coordinates="<coordinates>";
   a=$linia;
   if  [[ "$a" =~ "${match_coordinates}" ]]; then
	b=${linia//\<coordinates\>}; b=${b//\<\/coordinates\>};
	waypoint_longitude=`echo $b|cut -d ',' -f 1`;
        waypoint_latitude=`echo $b|cut -d ',' -f 2`;
        waypoint_elevation=`echo $b|cut -d ',' -f 3`;
        waypoint_type="1";
	waypoint_country="Spain";
   fi  

   match_placemark="</Placemark>";
   a=$linia; 
   if [[ "$a" =~ "${match_placemark}" ]]; then 
	if [ "$waypoint_longitude" != "" ]; then
        echo -e "$waypoint_id\t$waypoint_name\t$waypoint_type\t$waypoint_longitude\t$waypoint_latitude\t$waypoint_elevation\t$waypoint_country\t$waypoint_state\t$waypoint_channel\t$waypoint_frequency\t$main_runway_orientation\t$country\n" >> $OUTPUT_FILE
	fi
        unset waypoint_id waypoint_name waypoint_type waypoint_longitude waypoint_latitude waypoint_elevation waypoint_country waypoint_state waypoint_channel waypoint_frequency main_runway_orientation 
	UBICACIO=0;

   fi
else
   match_placemark="<Placemark>";
   a=$linia; [[ "$a" =~ "${match_placemark}" ]] && UBICACIO=1 
fi

done < $INPUT_FILE