#tcx converter to get a list of coordinates
#12/2/2021

#we use a series of lat/lon values, with lat first
#instantiate a list
lat_container=[]
lon_container=[]


#open the tcx file and extract lat/lon very poorly
#if there is a missing value in a pair, everything will break
#this is very fragile
with open("exercise_tcx_file.tcx")as cheese:
    for line in cheese:
        if "<LatitudeDegrees>" in line or "<LongitudeDegrees>" in line:
            line2=line.strip()
            if "<LatitudeDegrees>" in line2:
                line3=line2.strip("<LatitudeDegrees>")
                line3=line3.strip("</LatitudeDegrees>")
                lat_container.append(line3)
            if "<LongitudeDegrees>" in line2:
                line3=line2.strip("<LongitudeDegrees>")
                line3=line3.strip("</LongitudeDegrees>")
                lon_container.append(line3)

#small test to see if there are any missing entries
if len(lat_container) == len(lon_container):
    pass
else:
    quit()

#write a comma delimited text file for import into excel
with open("tcx_convert_finish.txt","w") as cracker:
    cracker.write("PTnum,LAT,LON\n")
    for shift in range(0,len(lat_container)):
        cracker.write("%s,%s,%s\n" % (str(shift+1),lat_container[shift],lon_container[shift]))