#!/usr/bin/python
#
# Copyright (C) 2013 IBM Corporation and Others. All Rights Reserved.
#
print "NOTE: this tool is a TECHNOLOGY PREVIEW and not a supported ICU tool."
#
# @author Steven R. Loomis <srl@icu-project.org>
#
# Yet Another Resource Builder
#
# Usage:
#
##$ mkdir loc
##$ echo 'root { hello { "Hello" } }' > loc/root.txt
##$ echo 'es { hello { "Hola" } }' > loc/es.txt
##$ rm -rf ./out
##$ bldicures.py --name myapp --from ./loc -d ./out
##$ ls out/myapp.dat
#
# use 'bldicures.py --help' for help.
#
# BUGS/TODO
# * dependency calculation
# * pathnames/PATH for genrb/pkgdata
# * cleanup of files, ./out, etc
# * document res_index
# * probably pathname munging
# * deuglify python


import sys

# for utf-8
#reload(sys)
#sys.setdefaultencoding("utf-8")

import argparse
import os

parser = argparse.ArgumentParser(description='Yet Another ICU Resource Builder', epilog='ICU tool, http://icu-project.org - master copy at http://source.icu-project.org/repos/icu/tools/trunk/scripts/bldicures.py')
parser.add_argument('-f', '--from', action='append', dest='fromdirs', help='read .txt files from this dir', metavar='fromdir', required=True)
parser.add_argument('-n', '--name', action='store', help='set the bundle name, such as "myapp"', metavar='bundname', required=True)
parser.add_argument('-m', '--mode', action='store', help='pkgdata mode', metavar='mode', default="archive")
parser.add_argument('-d', '--dest', action='store', dest='destdir', help='dest dir, default is ".".', default=".", metavar='destdir')
parser.add_argument('--verbose', '-v', action='count',default=0)

args = parser.parse_args()
if args.verbose>0:
    print "Options: "+str(args)

if args.verbose > 0:
    print "mkdir " + args.destdir
os.makedirs(args.destdir)
tmpdir = 'tmp'
os.makedirs('%s/%s/' % (args.destdir, tmpdir))

listname = '%s/%s/icufiles.lst' % (args.destdir, tmpdir)

if args.verbose > 0:
    print ">%s" % (listname)
listfn = open(listname, 'w')

print >>listfn, '# list for "%s" generated by %s on %s' % (args.name,parser.prog, '(now)')
print >>listfn, '# args: ' + str(args)
print >>listfn, '#'

idxname = '%s/%s/res_index.txt' % (args.destdir, tmpdir)
idxfn = open(idxname, 'w')
print >>idxfn, """// Warning, this file is autogenerated by %s
res_index:table(nofallback) {
 InstalledLocales:table {""" % (parser.prog)

gens = {}

def add_res(resname,txtname, loc):
    if args.verbose>0:
        print "+ %s (from %s)" % (loc, txtname)
    print >>listfn, "# %s" % (txtname)
    print >>listfn, "%s.res" % (loc)
    gens[loc] = { "loc": loc, "res": resname, "txt": txtname }

add_res('%s/%s/res_index.res' % (args.destdir,tmpdir), idxname, 'res_index')

def add_loc(path, loc):
    resf = '%s/%s/%s.res' % (args.destdir,tmpdir,loc)
    txtf = '%s/%s.txt' % (path, loc)
    print >>idxfn, "  %s {\"\"}" % loc
    add_res(resf, txtf, loc)

for dir in args.fromdirs:
    if args.verbose>0:
        print "Collecting .txt files in %s" % (dir)

    walks = os.walk(dir)
    for ent in walks:
            junk = (path,dirs,files) = ent
            if args.verbose>3:
                print junk
            if (path.find("/.svn") != -1):
                continue
            for file in files:
                if (file.find(".txt") == -1):
                    if args.verbose>1:
                        print "Ignoring %s/%s" % (path,file)
                    continue
                (loc,ext) = file.split('.')
                if ext != "txt":
                    if args.verbose>1:
                        print "Ignoring (bad ext %s) %s/%s" % (ext, path,file)
                    continue
                add_loc(path, loc)

print >>idxfn, " }"
print >>idxfn, "}"

idxfn.close()
listfn.close()

if (args.verbose>2):
    print gens

if (args.verbose>3):
    print "TODO: dependency tracking. For now, dont' care"

for gen in gens:
    item = gens[gen]
    cmd = 'genrb -d "%s/%s" "%s"' % (args.destdir, tmpdir, item["txt"])
    if (args.verbose>1):
        print "# " + cmd
    os.system(cmd)

cmd = 'pkgdata -m "%s" -T "%s/%s" -p "%s" -s "%s/%s" -d "%s" "%s"' % (args.mode,args.destdir,tmpdir,args.name,args.destdir,tmpdir,args.destdir,listname)
if (args.verbose>1):
    cmd = cmd + " -v"
    print "# " + cmd
os.system(cmd)