"""
OpenLP - Open Source Lyrics Projection
Copyright (c) 2008 Raoul Snyman
Portions copyright (c) 2008 - 2009 Martin Thompson, Tim Bentley

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; version 2 of the License.

This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
"""

import os, os.path
import sys
import urllib2

from common import BibleCommon, SearchResults

import logging
                
class BGExtract(BibleCommon):
    global log 
    log=logging.getLogger(u'BibleHTTPMgr(BG_extract)')
    log.info(u'BG_extract loaded') 
    
    def __init__(self, proxyurl= None):
        log.debug("init %s", proxyurl)  
        self.proxyurl = proxyurl
        
    def get_bible_chapter(self, version, bookid, bookname,  chapter) :
        """
        Access and decode bibles via the BibleGateway website
            Version - the version of the bible like 31 for New International version
            bookid - Book id for the book of the bible - eg 1 for Genesis
            bookname - not used
            chapter - chapter number 
        
        """
        version = 49
        log.debug( u"get_bible_chapter %s,%s,%s,%s", version, bookid, bookname,  chapter) 
        urlstring = u"http://www.biblegateway.com/passage/?book_id="+str(bookid)+"&chapter"+str(chapter)+"&version="+str(version)
        xml_string = self._get_web_text(urlstring, self.proxyurl)
        print xml_string
        VerseSearch = u'class='+'"'+u'sup'+'"'+u'>'
        verse = 1
        i= xml_string.find(u'result-text-style-normal')
        xml_string = xml_string[i:len(xml_string)]
        versePos = xml_string.find(VerseSearch)
        #print versePos
        bible = {}
        while versePos > -1:
            verseText = '' # clear out string
            versePos = xml_string.find(u'</span', versePos)
            i = xml_string.find(VerseSearch, versePos+1)
            #print i ,  versePos
            if i == -1:
                i = xml_string.find(u'</div', versePos+1)
                j = xml_string.find(u'<strong', versePos+1)                
                #print i ,  j
                if j > 0 and j < i:
                    i = j
                verseText = xml_string[versePos + 7 : i ] 
                #print xml_string
                #print 'VerseText = ' + str(verse) +' '+ verseText
                bible[verse] = self._clean_text(verseText) # store the verse                
                versePos = -1
            else:
                i = xml_string[:i].rfind(u'<span')+1
                verseText = xml_string[versePos + 7 : i - 1 ] # Loose the </span>
                xml_string = xml_string[i - 1 :len(xml_string)] # chop off verse 1
                versePos = xml_string.find(VerseSearch) #look for the next verse
                bible[verse] = self._clean_text(verseText) # store the verse
                verse += 1
        return bible        
        
class CWExtract(BibleCommon):
    global log 
    log=logging.getLogger(u'BibleHTTPMgr(CWExtract)')
    log.info(u'CWExtract loaded') 
    
    def __init__(self, proxyurl=None):
        log.debug(u"init %s", proxyurl)  
        self.proxyurl = proxyurl
        
    def get_bible_chapter(self, version, bookid, bookname,  chapter) :
        log.debug( u"getBibleChapter %s,%s,%s,%s", version, bookid, bookname,  chapter) 
        """
        Access and decode bibles via the Crosswalk website
            Version - the version of the bible like niv for New International version
            bookid - not used
            bookname - text name of in english eg 'gen' for Genesis
            chapter - chapter number 
        """        
        log.debug( "get_bible_chapter %s,%s,%s,%s", version, bookid, bookname,  chapter)
        bookname = bookname.replace(' ', '')
        urlstring = "http://bible.crosswalk.com/OnlineStudyBible/bible.cgi?word="+bookname+"+"+str(chapter)+"&version="+version
        xml_string = self._get_web_text(urlstring, self.proxyurl)
        #log.debug('Return data %s', xml_string)
        ## Strip Book Title from Heading to return it to system
        ##
        i= xml_string.find(u'<title>')
        j= xml_string.find(u'-', i)
        book_title = xml_string[i + 7:j]
        book_title = book_title.rstrip()
        log.debug(u"Book Title %s", book_title)
        i = book_title.rfind(" ")
        book_chapter = book_title[i+1:len(book_title)].rstrip()
        book_title = book_title[:i].rstrip()
        log.debug(u"Book Title %s", book_title)
        log.debug(u"Book Chapter %s", book_chapter)

        ## Strip Verse Data from Page and build an array
        ##
        i= xml_string.find(u'NavCurrentChapter')
        xml_string = xml_string[i:len(xml_string)]
        i= xml_string.find(u'<TABLE')
        xml_string = xml_string[i:len(xml_string)]
        i= xml_string.find(u'<B>')
        xml_string = xml_string[i + 3 :len(xml_string)] #remove the <B> at the front
        i= xml_string.find(u'<B>') # Remove the heading for the book
        xml_string = xml_string[i + 3 :len(xml_string)] #remove the <B> at the front
        versePos = xml_string.find(u'<BLOCKQUOTE>') 
        #log.debug( versePos)
        bible = {}
        while versePos > 0:
            verseText = '' # clear out string
            versePos = xml_string.find(u'<B><I>', versePos) + 6
            i = xml_string.find(u'</I></B>', versePos) 
            #log.debug( versePos, i)
            verse= xml_string[versePos:i] # Got the Chapter
            #verse = int(temp)
            #log.debug( 'Chapter = ' + str(temp))
            versePos = i + 8     # move the starting position to negining of the text
            i = xml_string.find(u'<B><I>', versePos) # fine the start of the next verse
            if i == -1:
                i = xml_string.find(u'</BLOCKQUOTE>',versePos)
                verseText = xml_string[versePos: i]
                versePos = 0
            else:
                #log.debug( i,  versePos)
                verseText = xml_string[versePos: i]
                versePos = i
            bible[verse] = self._clean_text(verseText)
            #bible[verse] = verseText
            
        #log.debug( bible)
        return SearchResults(book_title, book_chapter, bible)
        
class BibleHTTPImpl():
    global log 
    log=logging.getLogger(u'BibleHTTPMgr')
    log.info(u'BibleHTTP manager loaded') 
    def __init__(self):
        """
        Finds all the bibles defined for the system
        Creates an Interface Object for each bible containing connection information
        Throws Exception if no Bibles are found.

        Init confirms the bible exists and stores the database path.
        """
        bible = {}
        biblesource = ''
        proxyurl = None
        bibleid = None
        
    def set_proxy(self,proxyurl):
        """
        Set the Proxy Url
        """
        log.debug(u"set_proxy %s", proxyurl)        
        self.proxyurl = proxyurl 
        
    def set_bibleid(self,bibleid):
        """
        Set the bible id.
        The shore identifier of the the bible.
        """
        log.debug(u"set_bibleid  %s", bibleid)        
        self.bibleid = bibleid 
 
    def set_bible_source(self,biblesource):
        """
        Set the source of where the bible text is coming from
        """
        log.debug(u"set_bible_source %s", biblesource)        
        self.biblesource = biblesource

    def get_bible_chapter(self, version, bookid, bookname,  chapter):
        """
        Receive the request and call the relevant handler methods
        """
        log.debug(u"get_bible_chapter %s,%s,%s,%s", version, bookid, bookname,  chapter) 
        log.debug(u"biblesource = %s", self.biblesource)
        try:
            if self.biblesource.lower() == u'crosswalk':
                ev = CWExtract(self.proxyurl)
            else:
                ev = BGExtract(self.proxyurl)
                
            return ev.get_bible_chapter(self.bibleid, bookid, bookname,  chapter)
        except:
            log.error(u"Error thrown = %s", sys.exc_info()[1])