"""
This page is in the table of contents.
Statistic is an extremely valuable analyze plugin to print and/or save the statistics of the generated gcode.

The statistic manual page is at:
http://fabmetheus.crsndoo.com/wiki/index.php/Skeinforge_Statistic

==Operation==
The default 'Activate Statistic' checkbox is on.  When it is on, the functions described below will work when called from the skeinforge toolchain, when it is off, the functions will not be called from the toolchain.  The functions will still be called, whether or not the 'Activate Statistic' checkbox is on, when statistic is run directly.

==Settings==
===Print Statistics===
Default is on.

When the 'Print Statistics' checkbox is on, the statistics will be printed to the console.

===Save Statistics===
Default is off.

When the 'Save Statistics' checkbox is on, the statistics will be saved as a .txt file.

==Gcodes==
An explanation of the gcodes is at:
http://reprap.org/bin/view/Main/Arduino_GCode_Interpreter

and at:
http://reprap.org/bin/view/Main/MCodeReference

A gode example is at:
http://forums.reprap.org/file.php?12,file=565

==Examples==
Below are examples of statistic being used.  These examples are run in a terminal in the folder which contains Screw Holder_penultimate.gcode and statistic.py.  The 'Save Statistics' checkbox is selected.

> python statistic.py
This brings up the statistic dialog.

> python statistic.py Screw Holder_penultimate.gcode
Statistics are being generated for the file /home/enrique/Desktop/backup/babbleold/script/reprap/fabmetheus/models/Screw Holder_penultimate.gcode

Cost
Machine time cost is 0.31$.
Material cost is 0.2$.
Total cost is 0.51$.

Extent
X axis extrusion starts at 61 mm and ends at 127 mm, for a width of 65 mm.
Y axis extrusion starts at 81 mm and ends at 127 mm, for a depth of 45 mm.
Z axis extrusion starts at 0 mm and ends at 15 mm, for a height of 15 mm.

Extruder
Build time is 18 minutes 47 seconds.
Distance extruded is 46558.4 mm.
Distance traveled is 58503.3 mm.
Extruder speed is 50.0
Extruder was extruding 79.6 percent of the time.
Extruder was toggled 1688 times.
Operating flow rate is 9.8 mm3/s.
Feed rate average is 51.9 mm/s, (3113.8 mm/min).

Filament
Cross section area is 0.2 mm2.
Extrusion diameter is 0.5 mm.
Extrusion fill density ratio is 0.68

Material
Mass extruded is 9.8 grams.
Volume extruded is 9.1 cc.

Meta
Text has 33738 lines and a size of 1239.0 KB.
Version is 11.09.28

Procedures
carve
bottom
preface
inset
fill
multiply
speed
temperature
raft
skirt
dimension
bookend

Profile
UM-PLA-HighQuality

Slice
Edge width is 0.72 mm.
Layer height is 0.4 mm.

"""

from __future__ import absolute_import
#Init has to be imported first because it has code to workaround the python bug where relative imports don't work if the module is imported as a main module.
import __init__

from fabmetheus_utilities.vector3 import Vector3
from fabmetheus_utilities import archive
from fabmetheus_utilities import euclidean
from fabmetheus_utilities import gcodec
from fabmetheus_utilities import settings
from skeinforge_application.skeinforge_utilities import skeinforge_polyfile
from skeinforge_application.skeinforge_utilities import skeinforge_profile
import cStringIO
import math
import sys


__author__ = 'Enrique Perez (perez_enrique@yahoo.com)'
__date__ = '$Date: 2008/21/04 $'
__license__ = 'GNU Affero General Public License http://www.gnu.org/licenses/agpl.html'


def getNewRepository():
	'Get new repository.'
	return StatisticRepository()

def getWindowAnalyzeFile(fileName):
	"Write statistics for a gcode file."
	return getWindowAnalyzeFileGivenText( fileName, archive.getFileText(fileName) )

def getWindowAnalyzeFileGivenText( fileName, gcodeText, repository=None):
	"Write statistics for a gcode file."
	print('')
	print('')
	print('Statistics are being generated for the file ' + archive.getSummarizedFileName(fileName) )
	if repository == None:
		repository = settings.getReadRepository( StatisticRepository() )
	skein = StatisticSkein()
	statisticGcode = skein.getCraftedGcode(gcodeText, repository)
	if repository.printStatistics.value:
		print(statisticGcode)
	if repository.saveStatistics.value:
		archive.writeFileMessageEnd('.txt', fileName, statisticGcode, 'The statistics file is saved as ')

def writeOutput(fileName, fileNamePenultimate, fileNameSuffix, filePenultimateWritten, gcodeText=''):
	"Write statistics for a skeinforge gcode file, if 'Write Statistics File for Skeinforge Chain' is selected."
	repository = settings.getReadRepository( StatisticRepository() )
	if gcodeText == '':
		gcodeText = archive.getFileText( fileNameSuffix )
	if repository.activateStatistic.value:
		getWindowAnalyzeFileGivenText( fileNameSuffix, gcodeText, repository )


class StatisticRepository:
	"A class to handle the statistics settings."
	def __init__(self):
		"Set the default settings, execute title & settings fileName."
		skeinforge_profile.addListsToCraftTypeRepository('skeinforge_application.skeinforge_plugins.analyze_plugins.statistic.html', self)
		self.openWikiManualHelpPage = settings.HelpPage().getOpenFromAbsolute('http://fabmetheus.crsndoo.com/wiki/index.php/Skeinforge_Statistic')
		self.activateStatistic = settings.BooleanSetting().getFromValue('Activate Statistic', self, True )
		settings.LabelSeparator().getFromRepository(self)
		settings.LabelDisplay().getFromName('- Cost -', self )
		self.machineTime = settings.FloatSpin().getFromValue( 0.0, 'Machine Time ($/hour):', self, 5.0, 1.0 )
		self.material = settings.FloatSpin().getFromValue( 0.0, 'Material ($/kg):', self, 40.0, 20.0 )
		settings.LabelSeparator().getFromRepository(self)
		self.density = settings.FloatSpin().getFromValue( 500.0, 'Density (kg/m3):', self, 2000.0, 930.0 )
		self.fileNameInput = settings.FileNameInput().getFromFileName( [ ('Gcode text files', '*.gcode') ], 'Open File to Generate Statistics for', self, '')
		self.printStatistics = settings.BooleanSetting().getFromValue('Print Statistics', self, True )
		self.saveStatistics = settings.BooleanSetting().getFromValue('Save Statistics', self, False )
		self.executeTitle = 'Generate Statistics'

	def execute(self):
		"Write button has been clicked."
		fileNames = skeinforge_polyfile.getFileOrGcodeDirectory( self.fileNameInput.value, self.fileNameInput.wasCancelled, ['_comment'] )
		for fileName in fileNames:
			getWindowAnalyzeFile(fileName)


class StatisticSkein:
	"A class to get statistics for a gcode skein."
	def __init__(self):
		self.extrusionDiameter = None
		self.oldLocation = None
		self.operatingFeedRatePerSecond = None
		self.output = cStringIO.StringIO()
		self.profileName = None
		self.version = None
		self.volumeFraction = None

	def addLine(self, line):
		"Add a line of text and a newline to the output."
		self.output.write(line + '\n')

	def addToPath(self, location):
		"Add a point to travel and maybe extrusion."
		if self.oldLocation != None:
			travel = location.distance( self.oldLocation )
			if self.feedRateMinute > 0.0:
				self.totalBuildTime += 60.0 * travel / self.feedRateMinute
			self.totalDistanceTraveled += travel
			if self.extruderActive:
				self.totalDistanceExtruded += travel
				self.cornerMaximum.maximize(location)
				self.cornerMinimum.minimize(location)
		self.oldLocation = location

	def extruderSet( self, active ):
		"Maybe increment the number of times the extruder was toggled."
		if self.extruderActive != active:
			self.extruderToggled += 1
		self.extruderActive = active

	def getCraftedGcode(self, gcodeText, repository):
		"Parse gcode text and store the statistics."
		self.absoluteEdgeWidth = 0.4
		self.characters = 0
		self.cornerMaximum = Vector3(-987654321.0, -987654321.0, -987654321.0)
		self.cornerMinimum = Vector3(987654321.0, 987654321.0, 987654321.0)
		self.extruderActive = False
		self.extruderSpeed = None
		self.extruderToggled = 0
		self.feedRateMinute = 600.0
		self.layerHeight = 0.4
		self.numberOfLines = 0
		self.procedures = []
		self.repository = repository
		self.totalBuildTime = 0.0
		self.totalDistanceExtruded = 0.0
		self.totalDistanceTraveled = 0.0
		lines = archive.getTextLines(gcodeText)
		for line in lines:
			self.parseLine(line)
		averageFeedRate = self.totalDistanceTraveled / self.totalBuildTime
		self.characters += self.numberOfLines
		kilobytes = round( self.characters / 1024.0 )
		halfEdgeWidth = 0.5 * self.absoluteEdgeWidth
		halfExtrusionCorner = Vector3( halfEdgeWidth, halfEdgeWidth, halfEdgeWidth )
		self.cornerMaximum += halfExtrusionCorner
		self.cornerMinimum -= halfExtrusionCorner
		extent = self.cornerMaximum - self.cornerMinimum
		roundedHigh = euclidean.getRoundedPoint( self.cornerMaximum )
		roundedLow = euclidean.getRoundedPoint( self.cornerMinimum )
		roundedExtent = euclidean.getRoundedPoint( extent )
		axisString =  " axis extrusion starts at "
		crossSectionArea = self.absoluteEdgeWidth * self.layerHeight
		if self.volumeFraction != None:
			crossSectionArea *= self.volumeFraction
		self.extrusionDiameter = math.sqrt(4.0 * crossSectionArea / math.pi)
		volumeExtruded = 0.001 * crossSectionArea * self.totalDistanceExtruded
		mass = volumeExtruded / repository.density.value
		machineTimeCost = repository.machineTime.value * self.totalBuildTime / 3600.0
		materialCost = repository.material.value * mass
		self.addLine(' ')
		self.addLine('Cost')
		self.addLine( "Machine time cost is %s$." % round( machineTimeCost, 2 ) )
		self.addLine( "Material cost is %s$." % round( materialCost, 2 ) )
		self.addLine( "Total cost is %s$." % round( machineTimeCost + materialCost, 2 ) )
		self.addLine(' ')
		self.addLine('Extent')
		self.addLine( "X%s%s mm and ends at %s mm, for a width of %s mm." % ( axisString, int( roundedLow.x ), int( roundedHigh.x ), int( extent.x ) ) )
		self.addLine( "Y%s%s mm and ends at %s mm, for a depth of %s mm." % ( axisString, int( roundedLow.y ), int( roundedHigh.y ), int( extent.y ) ) )
		self.addLine( "Z%s%s mm and ends at %s mm, for a height of %s mm." % ( axisString, int( roundedLow.z ), int( roundedHigh.z ), int( extent.z ) ) )
		self.addLine(' ')
		self.addLine('Extruder')
		self.addLine( "Build time is %s." % euclidean.getDurationString( self.totalBuildTime ) )
		self.addLine( "Distance extruded is %s mm." % euclidean.getThreeSignificantFigures( self.totalDistanceExtruded ) )
		self.addLine( "Distance traveled is %s mm." % euclidean.getThreeSignificantFigures( self.totalDistanceTraveled ) )
		if self.extruderSpeed != None:
			self.addLine( "Extruder speed is %s" % euclidean.getThreeSignificantFigures( self.extruderSpeed ) )
		self.addLine( "Extruder was extruding %s percent of the time." % euclidean.getThreeSignificantFigures( 100.0 * self.totalDistanceExtruded / self.totalDistanceTraveled ) )
		self.addLine( "Extruder was toggled %s times." % self.extruderToggled )
		if self.operatingFeedRatePerSecond != None:
			flowRate = crossSectionArea * self.operatingFeedRatePerSecond
			self.addLine( "Operating flow rate is %s mm3/s." % euclidean.getThreeSignificantFigures( flowRate ) )
		self.addLine( "Feed rate average is %s mm/s, (%s mm/min)." % ( euclidean.getThreeSignificantFigures( averageFeedRate ), euclidean.getThreeSignificantFigures( 60.0 * averageFeedRate ) ) )
		self.addLine(' ')
		self.addLine('Filament')
		self.addLine( "Cross section area is %s mm2." % euclidean.getThreeSignificantFigures( crossSectionArea ) )
		self.addLine('Extrusion diameter is %s mm.' % euclidean.getThreeSignificantFigures(self.extrusionDiameter))
		if self.volumeFraction != None:
			self.addLine('Volume fraction is %s.' % euclidean.getThreeSignificantFigures(self.volumeFraction))
		self.addLine(' ')
		self.addLine('Material')
		self.addLine( "Mass extruded is %s grams." % euclidean.getThreeSignificantFigures( 1000.0 * mass ) )
		self.addLine( "Volume extruded is %s cc." % euclidean.getThreeSignificantFigures( volumeExtruded ) )
		self.addLine(' ')
		self.addLine('Meta')
		self.addLine( "Text has %s lines and a size of %s KB." % ( self.numberOfLines, kilobytes ) )
		if self.version != None:
			self.addLine( "Version is "  + self.version )
		self.addLine(' ')
		self.addLine( "Procedures" )
		for procedure in self.procedures:
			self.addLine(procedure)
		if self.profileName != None:
			self.addLine(' ')
			self.addLine( 'Profile' )
			self.addLine(self.profileName)
		self.addLine(' ')
		self.addLine('Slice')
		self.addLine( "Edge width is %s mm." % euclidean.getThreeSignificantFigures( self.absoluteEdgeWidth ) )
		self.addLine( "Layer height is %s mm." % euclidean.getThreeSignificantFigures( self.layerHeight ) )
		self.addLine(' ')
		return self.output.getvalue()

	def getLocationSetFeedRateToSplitLine( self, splitLine ):
		"Get location ans set feed rate to the plsit line."
		location = gcodec.getLocationFromSplitLine(self.oldLocation, splitLine)
		indexOfF = gcodec.getIndexOfStartingWithSecond( "F", splitLine )
		if indexOfF > 0:
			self.feedRateMinute = gcodec.getDoubleAfterFirstLetter( splitLine[indexOfF] )
		return location

	def helicalMove( self, isCounterclockwise, splitLine ):
		"Get statistics for a helical move."
		if self.oldLocation == None:
			return
		location = self.getLocationSetFeedRateToSplitLine(splitLine)
		location += self.oldLocation
		center = self.oldLocation.copy()
		indexOfR = gcodec.getIndexOfStartingWithSecond( "R", splitLine )
		if indexOfR > 0:
			radius = gcodec.getDoubleAfterFirstLetter( splitLine[ indexOfR ] )
			halfLocationMinusOld = location - self.oldLocation
			halfLocationMinusOld *= 0.5
			halfLocationMinusOldLength = halfLocationMinusOld.magnitude()
			centerMidpointDistanceSquared = radius * radius - halfLocationMinusOldLength * halfLocationMinusOldLength
			centerMidpointDistance = math.sqrt( max( centerMidpointDistanceSquared, 0.0 ) )
			centerMinusMidpoint = euclidean.getRotatedWiddershinsQuarterAroundZAxis( halfLocationMinusOld )
			centerMinusMidpoint.normalize()
			centerMinusMidpoint *= centerMidpointDistance
			if isCounterclockwise:
				center.setToVector3( halfLocationMinusOld + centerMinusMidpoint )
			else:
				center.setToVector3( halfLocationMinusOld - centerMinusMidpoint )
		else:
			center.x = gcodec.getDoubleForLetter( "I", splitLine )
			center.y = gcodec.getDoubleForLetter( "J", splitLine )
		curveSection = 0.5
		center += self.oldLocation
		afterCenterSegment = location - center
		beforeCenterSegment = self.oldLocation - center
		afterCenterDifferenceAngle = euclidean.getAngleAroundZAxisDifference( afterCenterSegment, beforeCenterSegment )
		absoluteDifferenceAngle = abs( afterCenterDifferenceAngle )
		steps = int( round( 0.5 + max( absoluteDifferenceAngle * 2.4, absoluteDifferenceAngle * beforeCenterSegment.magnitude() / curveSection ) ) )
		stepPlaneAngle = euclidean.getWiddershinsUnitPolar( afterCenterDifferenceAngle / steps )
		zIncrement = ( afterCenterSegment.z - beforeCenterSegment.z ) / float( steps )
		for step in xrange( 1, steps ):
			beforeCenterSegment = euclidean.getRoundZAxisByPlaneAngle( stepPlaneAngle, beforeCenterSegment )
			beforeCenterSegment.z += zIncrement
			arcPoint = center + beforeCenterSegment
			self.addToPath( arcPoint )
		self.addToPath( location )

	def linearMove( self, splitLine ):
		"Get statistics for a linear move."
		location = self.getLocationSetFeedRateToSplitLine(splitLine)
		self.addToPath( location )

	def parseLine(self, line):
		"Parse a gcode line and add it to the statistics."
		self.characters += len(line)
		self.numberOfLines += 1
		splitLine = gcodec.getSplitLineBeforeBracketSemicolon(line)
		if len(splitLine) < 1:
			return
		firstWord = splitLine[0]
		if firstWord == 'G1':
			self.linearMove(splitLine)
		elif firstWord == 'G2':
			self.helicalMove( False, splitLine )
		elif firstWord == 'G3':
			self.helicalMove( True, splitLine )
		elif firstWord == 'M101':
			self.extruderSet( True )
		elif firstWord == 'M102':
			self.extruderSet( False )
		elif firstWord == 'M103':
			self.extruderSet( False )
		elif firstWord == 'M108':
			self.extruderSpeed = gcodec.getDoubleAfterFirstLetter(splitLine[1])
		elif firstWord == '(<layerHeight>':
			self.layerHeight = float(splitLine[1])
		elif firstWord == '(<operatingFeedRatePerSecond>':
			self.operatingFeedRatePerSecond = float(splitLine[1])
		elif firstWord == '(<edgeWidth>':
			self.absoluteEdgeWidth = abs(float(splitLine[1]))
		elif firstWord == '(<procedureName>':
			self.procedures.append(splitLine[1])
		elif firstWord == '(<profileName>':
			self.profileName = line.replace('(<profileName>', '').replace('</profileName>)', '').strip()
		elif firstWord == '(<version>':
			self.version = splitLine[1]
		elif firstWord == '(<volumeFraction>':
			self.volumeFraction = float(splitLine[1])


def main():
	"Display the statistics dialog."
	if len(sys.argv) > 1:
		getWindowAnalyzeFile(' '.join(sys.argv[1 :]))
	else:
		settings.startMainLoopFromConstructor(getNewRepository())

if __name__ == "__main__":
	main()