import math
from Command import *

class Program:

	def __init__(self, commands=None):
		self.commands = commands or []
		self.active=True
		self.visible=False
		self.filename=''
		

	def parsefile(self, filename):
		with open(filename) as file:
			self.parse( file.read())

	def parse(self, code):
		for command in code.strip().split(";")[:-1]: 
			name, args = command[:2], command[2:]
			args = [float(arg) for arg in args.split(",")] if args else []
			# Experimental
			#if name=='CI':
				#self.commands.append(Command('PR',args[0]))
				#self.commands.append(Command('PR',args[0]))
				#self.commands.append(Command('PR',args[0]))
				
			self.commands.append(Command(name, *args))
			

	def __trunc__ (self):
		return Program([int(command) for command in self.commands])
		
	def __str__(self):
		return "".join(str(command) for command in self.commands)

	def __mul__(self, arg):
		return Program([command * arg for command in self.commands])		

	def __add__(self, arg):
		if type(arg)== type(self):
			return Program( self.commands + arg.commands )
		return Program([command + arg for command in self.commands])

	def __sub__(self, arg):
		return Program([command - arg for command in self.commands])

	def __len__(self):
		return len(str(self))

	def rotate(self, angl):
		return Program([command.rotate(angl) for command in self.commands])

	def flip(self):
		return Program([command.flip() for command in self.commands if command])

	@property
	def xmax(self):
		return max(command.x for command in self.commands if command.x and command.movable)
	@property
	def xmin(self):
		return min(command.x for command in self.commands if command.x and command.movable) 
	@property
	def ymax(self):
		return max(command.y for command in self.commands if command.y and command.movable)
	@property
	def ymin(self):
		return min(command.y for command in self.commands if command.y and command.movable) 
	@property
	def center(self):
		return ((self.xmin+self.xmax)/2),((self.ymin+self.ymax)/2)

	@property
	def winsize(self):
		return self.xmax-self.xmin , self.ymax - self.ymin