#!/usr/bin/env python3

import fileinput
import fnmatch
import glob
import inspect
import os
import os.path
import platform
import subprocess
import sys

PropertyGroupGlobals = '<PropertyGroup Label="Globals">'
ImportGlobalsProps = '  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory),Globals.props))\Globals.props" />'
PlatformToolset = 'PlatformToolset'
UpgradeFromVC71 = 'UpgradeFromVC71.props'
CopyIcuData = 'copy "$(U_ICUDATA_NAME).dll" "$(DLL_OUTPUT)"'
MakeDllOutDir = '    @if not exist "$(DLL_OUTPUT)" mkdir "$(DLL_OUTPUT)"'

def GetScriptDirectory():
    if hasattr(GetScriptDirectory, "dir"):
        return GetScriptDirectory.dir
    module_path = ""
    if len(sys.argv) > 0 and len(sys.argv[0]) > 0 and os.path.isabs(sys.argv[0]):
        module_path = sys.argv[0]
    else:
        module_path = os.path.abspath(inspect.getfile(GetScriptDirectory))
        if not os.path.exists(module_path):
            # If cx_freeze is used the value of the module_path variable at this point is in the following format.
            # {PathToExeFile}\{NameOfPythonSourceFile}. This makes it necessary to strip off the file name to get the correct
            # path.
            module_path = os.path.dirname(module_path)
    GetScriptDirectory.dir = os.path.dirname(module_path)
    return GetScriptDirectory.dir

def find_files(directory, pattern):
    for root, dirs, files in os.walk(directory):
        for basename in files:
            if fnmatch.fnmatch(basename, pattern):
                filename = os.path.join(root, basename)
                yield filename

def ProcessProjectFile(projectFile):
    for line in fileinput.input(projectFile, inplace=1):
        if line.find(PropertyGroupGlobals) != -1:
            print(ImportGlobalsProps)
            print(line, end='')
        elif line.find(PlatformToolset) != -1:
            pass
        elif line.find(UpgradeFromVC71) != -1:
            pass
        elif line.isspace():
            pass
        else:
            print(line, end='')

def ProcessMakeFile(makeFile):
    for line in fileinput.input(makeFile, inplace=1):
        if line.find(CopyIcuData) != -1:
            print(MakeDllOutDir)
            print(line, end='')
        else:
            print(line, end='')

def main(argv):
    for projectFile in find_files(GetScriptDirectory(), '*.vcxproj'):
        ProcessProjectFile(projectFile)
    for makeFile in find_files(GetScriptDirectory(), 'makedata.mak'):
        ProcessMakeFile(makeFile)

sys.exit(main(sys.argv))