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#! /usr/bin/env python
# -*- coding: utf-8 -*-
################################################################################
# parsegab.py, parse Google contacts dump
# Copyright (C) 2009 Konstantin Ignatiev, ignatiev@users.sourceforge.net
#
# This program is distributed under the terms of GNU General Public License,
# version 2, as published by the Free Software Foundation.
# See <URL:http://www.fsf.org/licenses/gpl.txt>
#
# [Based on template py_utility.py, version 2.0]
#
# ########## Informal subversion log ###########################################
# 142 2009-12-21 Initial version
################################################################################

# ./parsegab.py google.csv -O googlefixed.csv

import os, re, sys, getopt
import csv, StringIO
# from readcsvfile import readcsvfile

VERSION = "0.1"
class Opts :  pass
go = Opts ()

def main () :
    # Enable this if you want to print full option list when program
    # invoked without arguments
    if len(sys.argv) <= 1 :
        print_help_and_exit()

    try:
        # http://docs.python.org/lib/module-getopt.html
        opts, args = getopt.gnu_getopt(sys.argv[1:], "hO:",
               ["help","output=","version"])
    except getopt.GetoptError, (msg):
        print_help_and_exit(msg)

    out_file = False
    for opt, val in opts :
        if opt in ["-h","--help"] :
            print_help_and_exit ()
        elif opt in ["-O","--output"] :
            out_file = val
        elif opt == "--version" :
            print "%s, version %s" % (os.path.basename(sys.argv[0]), VERSION)
            sys.exit(0)
        else :
            print "CLI Option '%s' was not added to the code" % opt
            sys.exit(1)

    if out_file == False :
        print_help_and_exit ("Output file NOT given")
    else :
        print "Output : %s" % out_file
        
    if len(args) < 1 :
        print_help_and_exit ( "Input files NOT given")
    elif len(args) == 1 :
        print "Input  : %s" % args[0]
    else :
        print_help_and_exit( "%d input files: %s" % (len(args), ", ".join(args)))

    def readiterator(file) :
        fh = open ( file, "rb" )
        for line in fh :
            if line == '\x00' : continue
            if line[:2] == '\xff\xfe' :
                line = line[2:] + "\x00"
            else :
                line = line[1:] + "\x00"
            res = unicode ( line, "utf_16_le" )
            yield res.encode ( "utf-8" )
        fh.close ()

    class MyFileWriter:
        def __init__ ( self, file ) :
            self.fh = open ( file, "wb" )
            self.lineno = 0
            
        def write (self, line) :
            if self.lineno == 0 :
                self.fh.write ( '\xff\xfe' )
            self.lineno += 1
            self.fh.write ( line.encode ( "utf_16_le" ) )

        def close (self) :
            self.fh.close()

    class MyCSVWriter:
        def __init__ (self,file_writer) :
            self.stream = file_writer
            self.queue = StringIO.StringIO ()
            self.writer = csv.writer(self.queue)

        def writerow (self,row) :
            self.writer.writerow([s.encode("utf-8") for s in row])
            self.stream.write(unicode(self.queue.getvalue(),"utf-8"))
            self.queue.truncate(0)

        def close(self) :
            self.stream.close ()
            
    reader = csv.reader(readiterator(args[0]))
    csvwriter = MyCSVWriter(MyFileWriter(out_file))

    headers = reader.next ()

    if False :
        hout_fname = "headers.txt"
        hout = open ( hout_fname, "w" )
        for ii in range(len(headers)) :
            hout.write ( "%3d %s\n" % (ii + 1, headers[ii]) )
        hout.close ()
        print "Dumped file %s" % hout_fname

    headers.extend ( ["Phone 2 - Type", "Phone 2 - Value",
                      "Phone 3 - Type", "Phone 3 - Value"] )

    csvwriter.writerow ( headers )

    i_NOTES = headers.index ("Notes")
    
    def add_phone_type ( line, _type, phone ) :
        type = _type[:1].upper() + _type[1:].lower()
        assert len(line) == len(headers)
        for ii in range(1,4) :
            i_typ = headers.index ("Phone %d - Type" % ii)
            i_val = headers.index ("Phone %d - Value" % ii)
            if line[i_typ] == "" :
                line[i_typ] = type
                line[i_val] = phone
                return
        raise "Failed"

    def debug_line(line) :
        for ii in range(len(line)) :
            print "%3d %r" % (ii + 1, line[ii])

    re_repos = re.compile ( "\s*(home|work|mobile):\s*(\d+)\s*", re.I )
    for rline in reader :
        line = [unicode(x,"utf-8") for x in rline]

        if line[0] == u"foobar" : # u"Троицкая Лада" : # "KARPOVSKY CELL" :
            debug_line(line)

        line.extend(["","","",""])

        def reposition (m) :
            print "%r: Adding %s phone %s" % (line[0],m.group(1),m.group(2))
            add_phone_type (line,m.group(1),m.group(2))
            return ""

        line[i_NOTES] = re_repos.sub ( reposition, line[i_NOTES].replace("\n", " ") )
        assert line[i_NOTES] == ""

        csvwriter.writerow ( line )

    csvwriter.close ()
    print "Finished creating file %s" % out_file
            
    
def print_help_and_exit(msg=False) :
    exe = os.path.basename(sys.argv[0])

    if msg:
        print "ERROR: %s\n" % msg
        print "Usage: %s [options] <input files>" % exe
        print "... or use %s -h for more detailed help" % exe
    else :
        print '''\

%s : manually fixing information in Google Address Book, version '%s'

Usage:

%s -O <output CSV file>  <input CSV file>

Options are:

  -O, --output=<file>  Output file

  --version   print CVS version info
  -h, --help  Print this help\
''' % (exe,VERSION,exe)
        
    if msg :
        sys.exit(2)
    else :
        sys.exit(0)
        
main ()