# ====== Legal notices
#
# Copyright 2014, 2015, 2016 Jacques de Hooge, GEATEC engineering, www.geatec.com
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# 	http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

def main ():
	import os
	import sys
	import traceback
	import site

	programDir = os.getcwd () .replace ('\\', '/')
	transpilerDir = os.path.dirname (os.path.abspath (__file__)) .replace ('\\', '/')	
	modulesDir = '{}/modules'.format (transpilerDir)
	
	# Both CPython and Transcrypt will use all dirs in sys.path as search roots for modules
	# CPython will also search relatively from each module, Transcrypt only from the main module
	
	sys.path = [programDir, modulesDir] + sys.path	# Under Linux sys.path does not always contain programDir
	sys.modules.pop ('org', None)					# Unload org from a packages dir, if it's there.

	from org.transcrypt import __base__				# May reload org from a packages dir (or load org from different location)
	from org.transcrypt import utils
	from org.transcrypt import compiler

	licensePath = '{}/{}'.format (transpilerDir, 'license_reference.txt')	
	if not os.path.isfile (licensePath):
		utils.log (True, 'Error: missing license reference file\n')
		return
		
	utils.log (True, '{} (TM) Python to JavaScript Small Sane Subset Transpiler Version {}\n', __base__.__envir__.transpiler_name.capitalize (), __base__.__envir__.transpiler_version)
	utils.log (True, 'Copyright (C) Geatec Engineering. License: Apache 2.0\n\n')
		
	utils.commandArgs.parse ()
		
	if utils.commandArgs.license:
		with open (licensePath) as licenseFile:
			bar = 80 * '*'
			utils.log (True, '\n{}\n\n', bar)
			utils.log (True, '{}\n', licenseFile.read ())
			utils.log (True, '{}\n\n', bar)
			
	if not utils.commandArgs.source:
		return
			
	if utils.commandArgs.run:
		with open (utils.commandArgs.source) as sourceFile:
			exec (sourceFile.read ())
	else:			
		try:
			compiler.Program (sys.path)
		except utils.Error as error:
			utils.log (True, '\n{}\n', error)
			
			# Don't log anything else, even in verbose mode, since this would only be confusing
			if utils.debug:
				utils.log (True, '{}\n', traceback.format_exc ())
		except Exception as exception:
			utils.log (True, '\n{}', exception)
			
			# Have to log something else, because a general exception isn't informative enough
			utils.log (False, '{}\n', traceback.format_exc ())
		utils.log (True, '\nReady\n')
		
if __name__ == '__main__':
	main ()
		
			