# ------------------------------------------------------------------------------#
import xml.etree.ElementTree as ET;

from typing import Dict,List,Tuple;

# ------------------------------------------------------------------------------#

TypeCoords=Tuple[str,str,str];

def getCoords(elem: ET.Element,ns: Dict) -> TypeCoords:
    lon=elem.get('lon');
    lat=elem.get('lat');
    ele=elem.find('GPX:ele',ns).text;
    return ((lon,lat,ele));

# end def getCoords

# ------------------------------------------------------------------------------#

TypeWptData=Dict[str,TypeCoords];
TypePtsData=Tuple[str,List[TypeCoords]];

def extractKmlData(inputFilePath: str) -> Tuple[TypeWptData,TypePtsData]:
    #
    with open(inputFilePath,mode='r',encoding='utf-8') as fReader:
        etree=ET.parse(fReader);

    root=etree.getroot();

    namesSpace=root.tag[1:root.tag.index('}')];
    #    Should be: "http://www.topografix.com/GPX/1/1"
    ns={'GPX':namesSpace};

    # --------------------------------------------------------------------------#
    # Waypoints
    #
    wptData={wpt.find('GPX:name',ns).text:getCoords(wpt,ns)
             for wpt in root.findall('GPX:wpt',ns)};

    # --------------------------------------------------------------------------#
    # Points of track path
    #
    trk=root.find('GPX:trk',ns);
    # Track name
    trkName=trk.find('GPX:name',ns).text;
    # Coordinates of track points
    trkseg=trk.find('GPX:trkseg',ns);
    ptsData=[getCoords(trkpt,ns) for trkpt in trkseg.findall('GPX:trkpt',ns)];

    trkData=(trkName,ptsData);

    # --------------------------------------------------------------------------#

    return (wptData,trkData);

# end def extractKmlData

# ------------------------------------------------------------------------------#
# ------------------------------------------------------------------------------#

if __name__=='__main__':
    print('\n# Beginning TEST extract_kmldata_outof_gpxfile.py ...\n');
    # --------------------------------------------------------------------------#

    inputFilePath="../gpxfiles/Mal_36_Tossals Verds_4122_17.gpx"
    (wptData,trkData)=extractKmlData(inputFilePath);

    # --------------------------------------------------------------------------#
    print('\n# Finished TEST extract_kmldata_outof_gpxfile.py.\n');
# end if main

# ------------------------------------------------------------------------------#
# ------------------------------------------------------------------------------#