#!/usr/bin/env python
########################################################
##Cheetah template - gnuradio_python
##
##@param imports the import statements
##@param flow_graph the flow_graph
##@param variables the variable blocks
##@param controls the variables with gui controls
##@param parameters the paramater blocks
##@param blocks the signal blocks
##@param connections the connections
##@param generate_options the type of flow graph
##@param var_id2cbs variable id map to callback strings
########################################################
#def indent($code)
#set $code = '\n\t\t'.join(str($code).splitlines())
$code#slurp
#end def
#import time
#set $DIVIDER = '#'*50
$DIVIDER
# Gnuradio Python Flow Graph
# Title: $title
#if $flow_graph.get_option('author')
# Author: $flow_graph.get_option('author')
#end if
#if $flow_graph.get_option('description')
# Description: $flow_graph.get_option('description')
#end if
# Generated: $time.ctime()
$DIVIDER

########################################################
##Create Imports
########################################################
#for $imp in $imports
$imp
#end for

########################################################
##Create Class
##	Write the class declaration for a top or hier block.
##	The parameter names are the arguments to __init__.
##	Determine the absolute icon path (wx gui only).
##	Setup the IO signature (hier block only).
########################################################
#set $class_name = $flow_graph.get_option('id')
#set $param_str = ', '.join(['self'] + ['%s=%s'%(param.get_id(), param.get_make()) for param in $parameters])
#if $generate_options == 'wx_gui'
	#import gtk
	#set $icon = gtk.IconTheme().lookup_icon('gnuradio-grc', 32, 0)
class $(class_name)(grc_wxgui.top_block_gui):

	def __init__($param_str):
		grc_wxgui.top_block_gui.__init__(
			self,
			title="$title",
	#if $icon
			icon="$icon.get_filename()",
	#end if
		)
#elif $generate_options == 'no_gui'
class $(class_name)(gr.top_block):

	def __init__($param_str):
		gr.top_block.__init__(self, "$title")
#elif $generate_options == 'hb'
	#set $in_sig = $flow_graph.get_input_signature()
	#set $out_sig = $flow_graph.get_output_signature()
class $(class_name)(gr.hier_block2):

	def __init__($param_str):
		gr.hier_block2.__init__(
			self,
			"$title",
			gr.io_signature($in_sig.nports, $in_sig.nports, $in_sig.size*$in_sig.vlen),
			gr.io_signature($out_sig.nports, $out_sig.nports, $out_sig.size*$out_sig.vlen),
		)
#end if
########################################################
##Create Parameters
##	Set the parameter to a property of self.
########################################################
#if $parameters

		$DIVIDER
		# Parameters
		$DIVIDER
#end if
#for $param in $parameters
		$indent($param.get_var_make())
#end for
########################################################
##Create Variables
##	Set the variable to a property of self.
##	Write the first line of the variable make.
########################################################
#if $variables

		$DIVIDER
		# Variables
		$DIVIDER
#end if
#for $var in $variables
		$indent($var.get_var_make())
#end for
########################################################
##Create Controls
##	Write the variable make (excluding first line).
##	Indent each line with 2 tabs.
########################################################
#if $controls

		$DIVIDER
		# Controls
		$DIVIDER
#end if
#for $ctrl in $controls
		$indent($ctrl.get_make())
#end for
########################################################
##Create Blocks
##	Write the block make, and indent with 2 tabs.
########################################################
#if $blocks

		$DIVIDER
		# Blocks
		$DIVIDER
#end if
#for $blk in filter(lambda b: b.get_make(), $blocks)
		self.$blk.get_id() = $indent($blk.get_make())
#end for
########################################################
##Create Connections
##	The port name should be the id of the parent block.
##	However, port names for IO pads should be self.
########################################################
#if $connections

		$DIVIDER
		# Connections
		$DIVIDER
#end if
#for $con in $connections
	#set $source = $con.get_source()
	#set $sink = $con.get_sink()
	#if $source.get_parent().get_key() == 'pad_source'
		#set $source_name = 'self'
	#else
		#set $source_name = 'self.' + $source.get_parent().get_id()
	#end if
	#if $sink.get_parent().get_key() == 'pad_sink'
		#set $sink_name = 'self'
	#else
		#set $sink_name = 'self.' + $sink.get_parent().get_id()
	#end if
		self.connect(($source_name, $source.get_key()), ($sink_name, $sink.get_key()))
#end for

########################################################
##Create Callbacks
##	Write a set method for this variable that calls the callbacks
##	and sets the direct variable dependencies.
########################################################
#for $var in $parameters + $variables
	#set $id = $var.get_id()
	def set_$(id)(self, $id):
		self.$id = $id
	#for $callback in $var_id2cbs[$id]
		$indent($callback)
	#end for

#end for
########################################################
##Create Main
##	For top block code, generate a main routine.
##	Instantiate the top block and run as gui or cli.
########################################################
#if $generate_options != 'hb'
if __name__ == '__main__':
	parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
	#set $params_eq_list = list()
	#for $param in $parameters
		#set $type = $param.get_param('type').get_value()
		#if $type
			#silent $params_eq_list.append('%s=options.%s'%($param.get_id(), $param.get_id()))
	parser.add_option("--$param.get_id()", dest="$param.get_id()", type="$type", default=$param.get_make())
		#end if
	#end for
	(options, args) = parser.parse_args()
	#if $flow_graph.get_option('realtime_scheduling')
	if gr.enable_realtime_scheduling() != gr.RT_OK:
		print "Error: failed to enable realtime scheduling."
	#end if
	tb = $(class_name)($(', '.join($params_eq_list)))
	#if $generate_options == 'wx_gui'
	tb.Run($flow_graph.get_option('autostart'))
	#elif $generate_options == 'no_gui'
	tb.start()
	raw_input('Press Enter to quit: ')
	tb.stop()
	#end if
#end if