from __future__ import absolute_import

import platform, os, subprocess, sys

from cura_sf.skeinforge_application.skeinforge_utilities import skeinforge_craft
from util import profile

def getPyPyExe():
	"Return the path to the pypy executable if we can find it. Else return False"
	if platform.system() == "Windows":
		exeName = "pypy.exe"
		pypyExe = os.path.normpath(os.path.join(os.path.dirname(os.path.abspath(__file__)), "../../pypy/pypy.exe"));
	else:
		exeName = "pypy"
		pypyExe = os.path.normpath(os.path.join(os.path.dirname(os.path.abspath(__file__)), "../../pypy/bin/pypy"));
	if os.path.exists(pypyExe):
		return pypyExe

	path = os.environ['PATH']
	paths = path.split(os.pathsep)
	for p in paths:
		pypyExe = os.path.join(p, exeName)
		if os.path.exists(pypyExe):
			return pypyExe 
	return False

def getSlic3rExe():
	"Return the path to the pypy executable if we can find it. Else return False"
	if platform.system() == "Windows":
		exeName = "slic3r.exe"
		slic3rExe = os.path.normpath(os.path.join(os.path.dirname(os.path.abspath(__file__)), "../../Slic3r/bin/slic3r.exe"));
	else:
		exeName = "slic3r"
		slic3rExe = os.path.normpath(os.path.join(os.path.dirname(os.path.abspath(__file__)), "../../Slic3r/bin/slic3r"));
	if os.path.exists(slic3rExe):
		return slic3rExe

	path = os.environ['PATH']
	paths = path.split(os.pathsep)
	for p in paths:
		slic3rExe = os.path.join(p, exeName)
		if os.path.exists(slic3rExe):
			return slic3rExe
	return False

def runSlice(fileNames):
	"Run the slicer on the files. If we are running with PyPy then just do the slicing action. If we are running as Python, try to find pypy."
	pypyExe = getPyPyExe()
	for fileName in fileNames:
		if platform.python_implementation() == "PyPy":
			skeinforge_craft.writeOutput(fileName)
		elif pypyExe == False:
			print "************************************************"
			print "* Failed to find pypy, so slicing with python! *"
			print "************************************************"
			skeinforge_craft.writeOutput(fileName)
			print "************************************************"
			print "* Failed to find pypy, so sliced with python!  *"
			print "************************************************"
		else:
			subprocess.call([pypyExe, os.path.join(sys.path[0], sys.argv[0]), fileName])

def getSliceCommand(filename):
	if profile.getPreference('slicer').startswith('Slic3r'):
		slic3rExe = getSlic3rExe()
		if slic3rExe == False:
			return False
		cmd = [slic3rExe,
			'--output-filename-format', '[input_filename_base]_export.gcode',
			'--nozzle-diameter', str(profile.calculateEdgeWidth()),
			'--print-center', '%s,%s' % (profile.getProfileSetting('machine_center_x'), profile.getProfileSetting('machine_center_y')),
			'--z-offset', '0',
			'--gcode-flavor', 'reprap',
			'--gcode-comments',
			'--filament-diameter', profile.getProfileSetting('filament_diameter'),
			'--extrusion-multiplier', str(1.0 / float(profile.getProfileSetting('filament_density'))),
			'--temperature', profile.getProfileSetting('print_temperature'),
			'--travel-speed', profile.getProfileSetting('travel_speed'),
			'--perimeter-speed', profile.getProfileSetting('print_speed'),
			'--small-perimeter-speed', profile.getProfileSetting('print_speed'),
			'--infill-speed', profile.getProfileSetting('print_speed'),
			'--solid-infill-speed', profile.getProfileSetting('print_speed'),
			'--bridge-speed', profile.getProfileSetting('print_speed'),
			'--bottom-layer-speed-ratio', str(float(profile.getProfileSetting('bottom_layer_speed')) / float(profile.getProfileSetting('print_speed'))),
			'--layer-height', profile.getProfileSetting('layer_height'),
			'--first-layer-height-ratio', '1.0',
			'--infill-every-layers', '1',
			'--perimeters', str(profile.calculateLineCount()),
			'--solid-layers', str(profile.calculateSolidLayerCount()),
			'--fill-density', str(float(profile.getProfileSetting('fill_density'))/100),
			'--fill-angle', '45',
			'--fill-pattern', 'rectilinear',
			'--solid-fill-pattern', 'rectilinear',
			'--start-gcode', profile.getAlterationFilePath('start.gcode'),
			'--end-gcode', profile.getAlterationFilePath('end.gcode'),
			'--retract-length', profile.getProfileSetting('retraction_amount'),
			'--retract-speed', str(int(float(profile.getProfileSetting('retraction_speed')))),
			'--retract-restart-extra', profile.getProfileSetting('retraction_extra'),
			'--retract-before-travel', profile.getProfileSetting('retraction_min_travel'),
			'--retract-lift', '0',
			'--slowdown-below-layer-time', profile.getProfileSetting('cool_min_layer_time'),
			'--min-print-speed', profile.getProfileSetting('cool_min_feedrate'),
			'--skirts', profile.getProfileSetting('skirt_line_count'),
			'--skirt-distance', str(int(float(profile.getProfileSetting('skirt_gap')))),
			'--skirt-height', '1',
			'--scale', profile.getProfileSetting('model_scale'),
			'--rotate', profile.getProfileSetting('model_rotate_base'),
			'--duplicate-x', profile.getProfileSetting('model_multiply_x'),
			'--duplicate-y', profile.getProfileSetting('model_multiply_y'),
			'--duplicate-distance', '10']
		if profile.getProfileSetting('support') != 'None':
			cmd.extend(['--support-material'])
		cmd.extend([filename])
		return cmd
	else:
		pypyExe = getPyPyExe()
		if pypyExe == False:
			pypyExe = sys.executable
		return [pypyExe, os.path.abspath(os.path.join(os.path.dirname(os.path.abspath(__file__)), "..", os.path.split(sys.argv[0])[1])), filename]