#!/usr/bin/python

import sys, os, stat, re
import datetime

from basicbits import WriteGenHTMLhead, EncodeHref
from basicbits import htmldir, pdfdir, pdfinfodir, pdfpreviewdir, pdfpreviewpagedir, nowdatetime, basehref
from basicbits import LookupAgendaTitle, GenWDocLink
from db import GetDBcursor

def WritePDF(fpdf):
    print "Content-type: application/pdf\n"
    fin = open(fpdf)
    print fin.read()
    fin.close()

def SubParen(f):
    f = re.sub("\(", "\(", f)
    f = re.sub("\)", "\)", f)
    return f

def WritePdfPreviewJpg(docid):
    fname = os.path.join(pdfpreviewdir, docid + ".jpg")
    if os.path.isfile(fname):
        print "Content-type: image/png\n"
    else:
        fname = "pngnotfound.png"
        print "Content-type: image/png\n"
    
    fin = open(fname)
    print fin.read()
    fin.close()


def WritePDFpreviewpage(pdfinfo, npage, highlightrects, highlightedit):
    WriteGenHTMLhead("%s page %d" % (pdfinfo.desc, npage))
    code = pdfinfo.pdfc

    hmap = {"pagefunc":"pdfpage", "docid":code}
    resurl, reswref = GenWDocLink(pdfinfo, npage, highlightrects)
    print '<div id="docpagespecs">'
    
    print '<p><i>This</i> is page <b>%s</b>' % npage
    fulldoc = EncodeHref({"pagefunc":"document", "docid":code})
    if pdfinfo.pages == -1:
        print ' of a <a href="%s"><b>Document</b></a> with an unknown number of pages.</p>' % fulldoc
    else:
        print ' of a <b>%d</b> page <a href="%s"><b>Document</b></a>.</p>' % (pdfinfo.pages, fulldoc)

    lpages = [ ]
    lpages.append('Go to')
    if npage != 1:
        hmap["page"] = npage - 1
        lpages.append(' <a href="%s">previous page</a>' % EncodeHref(hmap))
    else:
        lpages.append(' <a href="%s">full document</a>' % fulldoc)
    if pdfinfo.pages == -1 or npage + 1 <= pdfinfo.pages:
        hmap["page"] = npage + 1
        lpages.append(' or <a href="%s">next page</a>' % EncodeHref(hmap))
    print '<p>%s</p>' % "".join(lpages)
    
    hmap["page"] = npage
    hmap["highlightrects"] = highlightrects
    hmap["highlightedit"] = False

    print '</div>'

    print '<div id="highlightcontrols">'
    #print '<p>' # <span class="linktabfleft">URL:</span> <input style="text" readonly value="%s">' % resurl
    print '<textarea rows="2" cols="50" style="float:right;font-size:75%%" readonly>%s</textarea>' % reswref
    print '<div class="linktabfleft">wiki<br/>templ:</div> '
    #print '<input type="text" style="font-size:50%%" size="100" readonly value="%s"></p>' % reswref

    if highlightrects:
        hmap["highlightrects"] = [ ]
        print '<a href="%s">Without any highlight</a>.' % EncodeHref(hmap),
        if len(highlightrects) > 1:
            for ih in range(len(highlightrects)):
                hmap["highlightrects"] = highlightrects[:]
                del hmap["highlightrects"][ih]
                print '<a href="%s">Without highlight %d</a>' % (EncodeHref(hmap), ih + 1),

        hmap["highlightrects"] = highlightrects

    if highlightedit:
        print '<script src="/cropper/lib/prototype.js" type="text/javascript"></script>' 
        print '<script src="/cropper/lib/scriptaculous.js?load=builder,dragdrop" type="text/javascript"></script>'
        print '<script src="/cropper/cropper.js" type="text/javascript"></script>'
        print """<script type="text/javascript">
                    Event.observe(window, 'load',
                              function() { new Cropper.Img('pdfpageid', { onEndCrop: onEndCrop }); } );

                function onEndCrop( coords, dimensions )
                {
                    var achl = document.getElementById('consdhighlight');
                    var imgl = document.getElementById('pdfpageid');
                    lhref = achl.href.substring(0, achl.href.lastIndexOf('/') + 1);
                    ix1 = Math.ceil(coords.x1 * 1000 / imgl.width);
                    iy1 = Math.ceil(coords.y1 * 1000 / imgl.width);
                    ix2 = Math.ceil(coords.x2 * 1000 / imgl.width); 
                    iy2 = Math.ceil(coords.y2 * 1000 / imgl.width);
                    rs = "rect_" + ix1 + "," + iy1 + "_" + ix2 + "," + iy2; 
                    achl.href = lhref + rs; 
                };
                </script>"""

        print 'Click and drag with your mouse to highlight the area of text you want.'
        hmap["highlightedit"] = False
        print '<div style="font-size:8;float:right">Thanks to <br><a href="http://www.defusion.org.uk/code/javascript-image-cropper-ui-using-prototype-scriptaculous/">Dave Spurr</a>.</div>'
        print '<br><a href="%s">Leave editing mode</a>' % (EncodeHref(hmap))
        print '<a id="consdhighlight" href="%s/"><b>Consolidate highlight</b></a>' % EncodeHref(hmap)
    else:
        hmap["highlightedit"] = True
        print '<a href="%s"><b>Add new highlight</b></a>' % EncodeHref(hmap)

    del hmap["highlightedit"]
    print '</div>'

    hmap["pagefunc"] = "pagepng"
    hmap["width"] = 800
    print '<div class="pdfpagediv"><img id="pdfpageid" src="%s"></div>' % EncodeHref(hmap)

    print '<p style="clear:both">%s</p>' % "".join(lpages)


def WritePDFpreview(docid, pdfinfo, rfr, bscrapedoc):
    parsed = (pdfinfo.mgapv or pdfinfo.mscpv)

    WriteGenHTMLhead('%s %s' % (pdfinfo.pdfc, pdfinfo.desc))
    code = pdfinfo.pdfc
    
    if bscrapedoc:
        sys.path.append("../scraper")
        from unscrapedoc import ScrapePDFdoc
        mess = ScrapePDFdoc(code, pdfinfo.pdffile)
        print mess

    pdfpreviewf = os.path.join(pdfpreviewdir, code + ".jpg")
    if os.path.isfile(pdfpreviewf):
        pass #print '<img style="float:right" src="/pdfpreviewjpg/%s">' % code

    resurl, reswref = GenWDocLink(pdfinfo, None, None)

    if rfr == 'wikipedia':
        print '<div id="rightdoclinks">'
        print '<p>Links for wikipedians</p>'
        print '<ul>'
        print '<li><a href="http://en.wikipedia.org/wiki/Wikipedia:WikiProject_United_Nations">WikiProject United Nations</li>'
        print '<li><a href="http://www.undemocracy.com/incoming">Other wikipedia articles</a> which link to undemocracy.com</li>'
        print '<li><a href="/">Front page of undemocracy.com</a></li>'
        print '<li><a href="http://www.guardian.co.uk/technology/2008/mar/13/internet.politics">Newspaper article about this project</a>.</li>'
        print '</ul>'
        print '</div>'
    

    pdflink = os.path.exists(pdfinfo.pdffile) and EncodeHref({"pagefunc":"nativepdf", "docid":code})
        
    if pdflink:
        print '<p style="text-align:center; padding-bottom: 2em; padding-top: 2em;"><a class="pdfview" href="%s">' % pdflink
        print '<img style="vertical-align: sub" src="/images/pdficon_large.gif" alt="(PDF)" border="0">' 
        print 'View PDF document' 
        print '</a></p>'
    
    print '<p>This is a holding page for the official document with <a href="http://en.wikipedia.org/wiki/United_Nations_Document_Codes">code</a> <i><b>%s</b></i>.' % code
    print 'The United Nations does not enable direct links to most of their documents.'
    print '</p>'
   
    print '<p style="padding-top:0.5em">Using this webpage, you can --</p>'
    print '<ul class="d">'
    if pdfinfo.mgapv or pdfinfo.mscpv:
        pfile = os.path.join(htmldir, pdfinfo.pdfc + ".html")
        if os.path.isfile(pfile):
            print '<li class="d">Go to <a href="%s">HTML version</a> of this transcript</li>' % (EncodeHref({"pagefunc":"meeting", "docid":code}))
        else:
            print '<li class="d">There is no parsed version for this verbatim report.</li>'

    if pdflink:
        print '<li class="d"><a href="%s">View as PDF</a></li>' % pdflink

        print '<li class="d">Or click on individual pages--</li>'
        print '<li class="d">'
        npages = pdfinfo.pages == -1 and 5 or pdfinfo.pages
        for n in range(npages):
            print '<a href="%s">Page %d</a>' % (EncodeHref({"pagefunc":"pdfpage", "docid":code, "page":(n+1)}), n + 1),
        if pdfinfo.pages == -1:
            print '(Accurate page-count unknown.)'
        print '</li>'
    
    lundlink = re.sub('[\-"]', "/", pdfinfo.pdfc)
    if re.match("S/PV/\d", lundlink):   # handle mistaken dash in these cases
        lundlink = re.sub('PV/', 'PV.', lundlink)
    undlink = "http://www.un.org/Docs/journal/asp/ws.asp?m=" + lundlink
    
    print '<li class="d">Try linking directly to <a href="%s">%s</a></li>' % (undlink, undlink)
    if not pdflink:
        print '<li class="d">No document available on undemocracy.com server.',
        if bscrapedoc:
            print '<b>Document scraping attempt failed, unfortunately.</b></li>'
        else:
            print 'Click <a href="%s"><b>here</b></a> to try and request it. (new feature!)</li>' % EncodeHref({"pagefunc":"document", "docid":code, "scrapedoc":True})
    print '<li class="d"><a href="http://www.un.org/documents/">UN Documentation Centre</a></li>'

    if pdfinfo.bGA:
        print '<li class="d">See all <a href="/generalassembly/documents">General Assembly documents</a>.</li>'
    if pdfinfo.bSC:
        print '<li class="d">See all <a href="/securitycouncil/documents">Security Council documents</a>.</li>'
    print '<li class="d">Ready-made URL link: <input style="text" readonly value="%s"></li>' % resurl
    print '<li class="d">Ready-made <a href="http://en.wikipedia.org/wiki/Help:Footnotes">wikipedia link</a> '
    print 'using <a href="http://en.wikipedia.org/wiki/Template:UN_document">Template:UN_document</a>: '
    print '<input style="text" readonly value="%s"></li>' % reswref
    print '</ul>'

    c = GetDBcursor()
    if pdfinfo.pvrefs:
        print '<h3>References to this document</h3>'
        print '<p>List of all post-1994 meetings of the Security Council or General Assembly where this document was specifically mentioned.</p>'
        print '<ul class="docrefs">'
        for pvrefk in sorted(pdfinfo.pvrefsing.keys()):
            mcode = pvrefk[1]
            hmap = { "pagefunc":"meeting", "docid":mcode, "highlightdoclink":code }
            hmap["gid"] = min(pdfinfo.pvrefsing[pvrefk])
            agtitle, sdate = LookupAgendaTitle(mcode, hmap["gid"], c)
            print '<li>%s <a href="%s">%s</a></li>' % (pvrefk[0], EncodeHref(hmap), (agtitle or mcode))
        print '</ul>'


    print '</body>'
    print '</html>'