# -*- coding: utf-8 -*-

'''

@author: raphv

'''

from django.core.management.base import BaseCommand, CommandError

import django.utils.simplejson as json

from SPARQLWrapper import SPARQLWrapper, JSON

from hdalab.models import InseeCoords

import csv

import re

import sys

class Command(BaseCommand):

    '''

    Command to export tags

    '''

    args = '<path_to_csv_file>'

    options = ''

    help = """Imports Insee codes and geographic coordinates from a csv file"""

    def handle(self, *args, **options):

        if len(args) == 0 or not args[0]:

            raise CommandError("Give a CSV File to import")

        filename = args[0]

        csvfile = open(filename, "rb")

        dialect = csv.Sniffer().sniff(csvfile.read(1024))

        csvfile.seek(0)

        reader = csv.reader(csvfile, dialect)

        fieldstoget = [ 'ville', 'insee', 'latitude', 'longitude' ]

        for i,line in enumerate(reader):

            if i == 0:

                fields = {}

                minlength = 0

                for j,field in enumerate(line):

                    for fieldname in fieldstoget:

                        if re.search('(?i)%s' % fieldname, field):

                            fields[fieldname] = j

                            minlength = max(j,minlength)

            else:

                if len(line) > minlength:

                    rawdata = dict([(k,line[v].strip()) for k,v in fields.iteritems()])

                    #print "Processing line %d" % i

                    #print rawdata

                    try:

                        latitude = float(rawdata['latitude'].replace(',','.'))

                        longitude = float(rawdata['longitude'].replace(',','.')) if rawdata['longitude'] != '-' else 0

                        insee = int(rawdata['insee'])

                        ville = unicode(rawdata['ville'], 'iso-8859-1')

                        InseeCoords.objects.get_or_create(insee=insee, city_name=ville, latitude=latitude, longitude=longitude)

                    except:

                        print line, "Error :", sys.exc_info()[1]

        csvfile.close()