#!/usr/bin/python3
#
# Startup kicad schema or PCB editor.
#
#  - Changes to the directory containing the specified file.
#  - Fixes the filename if possible.

import os
import os.path
import sys

def usage( scriptname, extension ):
	print( "usage:" )
	print( "  %s [options] file%s" % ( scriptname, extension ) )
	print( "options:" )
	print( "  -n      new file, do not check for presence of the file." )

def doit():
	scriptname = os.path.basename( sys.argv[0] )
	if scriptname == "e":
		extension = ".kicad_sch"
		application = "eeschema"
	elif scriptname == "p":
		extension = ".kicad_pcb"
		application = "pcbnew"
	else:
		print( "unrecognized script name '%s'" % scriptname )
		return
	if len(sys.argv) < 2:
		usage( scriptname, extension )
		return
	new_file = False
	i = 1
	while i < len(sys.argv) and sys.argv[i].startswith( "-" ):
		arg = sys.argv[i]
		i += 1
		if arg == "-h" or arg == "--help":
			usage( scriptname, extension )
			return
		elif arg == "-n":
			new_file = True
		else:
			print( "unknown opetion '%s'" % arg )
			return
	if (i+1) != len(sys.argv):
		usage( scriptname, extension )
		return
	filename = os.path.abspath( sys.argv[i] )
	basename = os.path.basename( filename )
	dirname = filename
	if not os.path.isdir( filename ):
		dirname = os.path.dirname( filename )
	if dirname != "":
		os.chdir( dirname )
	name = basename
	if not name.endswith( extension ):
		if name.endswith( ".kicad_" ):
			name = name[:-7]
		elif name.endswith( "." ):
			name = name[:-1]
		name = name + extension
	name = os.path.join( dirname, name )
	if new_file or os.path.isfile( name ):
		print( "Directory:", os.getcwd() )
		print( "Running:  ", application, name )
		# os.execlp( application, application, name )
		os.spawnlp( os.P_NOWAIT, application, application, name )
	elif not os.path.exists( name ):
		print( "File '%s' does not exist." % name )
	else:
		print( "'%s' is not a regular file." % name )


if __name__ == "__main__":
	doit()