#!/usr/bin/python
# -*- coding: utf-8 -*-

"""
നീക്കം ചെയ്ത പ്രമാണങ്ങൾ താളുകളിൽ നിന്നും ഒഴിവാക്കുന്നതിന്
നിർമ്മിച്ചത്: സുനിൽ വി.എസ്.
തിയതി: 2010-11-27
"""

import wikipedia
import pagegenerators
import unicodedata
import codecs
import re
import pywikibot

imageNamespaces	=	[ur'file',ur'File', ur'image', ur'Image', ur'ചിത്രം', ur'പ്രമാണം']

#to replace all whitespaces in text to underscore
def getGenericText(pText):
	return pText.replace(' ','_')

#to remove imagetext from pagetext
def hideImageText(pText,pImageText,pOccurances):
	for i in range(pOccurances):
		myLocation=getGenericText(pText).find(pImageText)
		myStartLocation=0
		myEndLocation=0
		#If it is from gallery
		if pText[myLocation-1]=='\n':
			wikipedia.output('Removing from Gallery')
			myEndLocation=pText.find('\n',myLocation+1)
			myStartLocation=myLocation
		#If it is image inclusion
		elif pText[myLocation-2:myLocation]=='[[':
			wikipedia.output ('Removing image')
			myLPCount=0 #Left paranthesis count ( [ )
			myRPCount=0 #Right paranthesis count ( ] )
			j=2
			while True:
				if pText[myLocation+j]=='[':
					myLPCount+=1
				if pText[myLocation+j]==']':
					myRPCount+=1
				j+=1
				if myRPCount-myLPCount==2:
					break
			myEndLocation=myLocation+j
			myStartLocation=myLocation-2
			wikipedia.output(pText[myLocation-2:myEndLocation])

		myString=pText[myStartLocation:myEndLocation]
		myStringPart1=pText[0:myStartLocation]
		myStringPart2=pText[myEndLocation+1:]
		pText=myStringPart1+'<!--' + myString + '\n-->\n' + myStringPart2
	return pText

#main program starts here

siteFamily	= 'wikipedia'
siteLangCode	= 'ml'
wikiSite	= wikipedia.Site(code=siteLangCode, fam=siteFamily)
log		= codecs.open('logs/remove-deleted-images.log', mode='at', encoding = 'utf-8')

for myImage in pagegenerators.LogpagesPageGenerator(number=100,mode='delete',namespace=[6]):
	wikipedia.output('\n' + myImage.title())
	if not myImage.exists():
		try:
			if myImage.fileIsOnCommons():
				wikipedia.output('File is on Commons')
		except pywikibot.NoPage:
			wikipedia.output('File does not exists, removing from linked pages')
			for myLinkedPage in myImage.usingPages():
				if myLinkedPage.namespace()<>0: continue #skip if not main namespace
				wikipedia.output('Removing from ' + myLinkedPage.title())
				myText=myLinkedPage.get()
				for myImageNamespace in imageNamespaces:
					myImageTitle=myImage.titleWithoutNamespace()
					mySearchStringNormal=getGenericText(myImageNamespace + ':' + myImageTitle)
					mySearchStringLower=getGenericText(myImageNamespace + ':' + myImageTitle.replace(myImageTitle[0],myImageTitle[0].lower(),1)) #first letter might be lower
					wikipedia.output('Checking for ' + mySearchStringNormal + ' or ' + mySearchStringLower)
					myOccuranceNormal=getGenericText(myText).count(mySearchStringNormal)
					myOccuranceLower=0
					if mySearchStringNormal<>mySearchStringLower:
						myOccuranceLower=getGenericText(myText).count(mySearchStringLower)
					if myOccuranceNormal>0:
						myText=hideImageText(myText,mySearchStringNormal,myOccuranceNormal)
					if myOccuranceLower>0:
						myText=hideImageText(myText,mySearchStringLower,myOccuranceLower)
				myLinkedPage.put(myText,comment=ur'യന്ത്രം: നിലവിലില്ലാത്ത ' + myImageTitle.title() + ur' എന്ന ചിത്രം ഒഴിവാക്കുന്നു')
	else:
		wikipedia.output('File exists')
wikipedia.stopme()
log.flush()
log.close()