from zope.interface import implements
from zope.component import queryUtility

from Products.MetadataPortal.interfaces import IVocabulary, ITranslator
from Products.MetadataPortal.waramulib.interfaces import IWidget
from Products.MetadataPortal.widgets import Default
from Products.MetadataPortal.utils import getLanguage, translate
from data import curriculum

import time

def cmp(l, r):
    if l['id'] > r['id']:
        return 1
    if l['id'] < r['id']:
        return -1
    return 0

class Curriculum(object):
    """ curriculum vocabulary """
    implements(IVocabulary, ITranslator)

    _mapp = curriculum.mapp
    _oldies = curriculum.oldies

    def treeLike(self):
        return True

    def fixedVocabulary(self):
        return True

    def get(self, v):
        if not isinstance(v, int):
            try:
                v = int(v)
            except ValueError:
                raise 'oopsi, not an in'
        return self._mapp.get(v)

    def getTree(self, v, lang=None):
        if not isinstance(v, int):
            try:
                v = int(v)
            except ValueError:
                return v

        vmat = self._mapp.get(v)
        if vmat is None:
            return u""+str(v)
        r = [ x for x in self._mapp.values() if v in x['ran'] ]
        r.append(vmat)
        r.sort(cmp)
        return r

    def translate(self, v, lang=None):
        if not isinstance(v, int):
            try:
                v = int(v)
            except ValueError:
                return v

        vmat = self._mapp.get(v)
        if vmat is None:
            return u""+str(v)
        r = [ x for x in self._mapp.values() if v in x['ran'] ]
        r.append(vmat)
        r.sort(cmp)
        st = u""
        for i in range(len(r)):
            x = r[i]
            if x is None:
                continue    # old, invalid values are haunting
            st += x['t']
            if i != len(r)-1:
                st += " &gt;&gt; "
        return st

    def getChildren(self, v):
        if not isinstance(v, int):
            try:
                v = int(v)
            except ValueError:
                return v
        o = self._mapp.get(v)
        if o is None:
            raise 'oopsi, '+str(v)+' not found'
        lev = o.get('lev')
        matlev = lev + 1
        children = []
        for x in o.get('ran'):
            if not self._mapp.has_key(x):
                continue
            if self._mapp.get(x).get('lev') == matlev:
                children.append(x)
        r = [self._mapp.get(x) for x in children ]
        r.sort(cmp)
        return r

    def getMain(self):
        r = [ x for x in self._mapp.values() if x.get('lev') == 1 ]
        r.sort(cmp)
        return r

class CurriculumWidget(Default):
    implements(IWidget)

    def __repr__(self):
        return "%s%r" % (self.__class__.__name__, self.context)

    def edit(self, f, id, cls, w, tid, lang=None):
        r = u""
        r += self._fieldLabel(cls, id, f.get('printable'))
        fval = self.context.get(f.get('name'), lang)

        ijoined_val = ""
        if (f.get('type') == 'MultiString' or f.get('type') == 'MultiInteger') and fval is not None:
            ijoined_val = ', '.join(fval)

        u = queryUtility(IVocabulary, f.get('name'))
        r += '\t<input type="hidden" id="'+id+'" name="'+id+'" value="'+ijoined_val+'" />\n'
        #if u is not None or (f.get('vocabulary') == '1' and f.get('fixedVocabulary') == '0'):
        #    r += '\t<span class="vocabularyButton" onclick="javascript:vocabulary.display_vocabulary(\''+f.get('name')+'\', \''+id+'\')">V</span>\n'
        r += ''
        translator = queryUtility(ITranslator, f.get('name'))
        r += '<div id="'+id+'_printer">\n'
        for x in fval:
            if not x: continue
            r += '<div id="curr_'+x+'">\n'
            r += '<span id="closer_'+x+'" class="closeCross">X</span>\n'
            r += '<span>'
            if translator is None:
                r += x
            else:
                r += translator.translate(x)
            r += '</span>'
            r += '</div>\n'
        r += '</div>\n'
        r += '\t<div><span class="vocabularyButton" onclick="javascript:vocabulary.display_vocabulary(\''+f.get('name')+'\', \''+id+'\')">'+translate(self, "add a value", getLanguage(self.context.request))+'</span></div>\n'

        r += "</div>\n"

        r += '<script type="text/javascript" language="Javascript">\n'
        r += '''
        function unmap(pid, ss) {
            vals = $('curriculumSubject');
            spl = vals.get('value').split(',');
            newvals = "";
            for (i=0; i<spl.length; i++) { 
                if ( 'curr_'+spl[i].trim() == pid ) { 
                    $('curr_'+spl[i].trim()).destroy();
                } else {
                    newvals += spl[i];
                    if ( i != spl.length-1) {
                        newvals += ',';
                    }
                } 
            }
            $('curriculumSubject').set('value', newvals);
        }
        function display_currval(res) {
            k = new Element('div', {'id': 'curr_'+res.source});
            k.inject(res.field+'_printer');
            cl = new Element('span', {'id': 'closer_'+res.source, 
                    'text': 'X',
                    'class': 'closeCross',
                    'events': {'click': unmap.bind(k, 'curr_'+res.source)}});
            cl.inject(k);

            k.appendText(' ');
            tx = new Element('span', {'html': res.outcome});
            tx.inject(k);
        }
        function handle_curriculum() {
            vals = $('curriculumSubject').get('value');
            spl = vals.split(',');
            for (i=0; i<spl.length; i++) {
                e = spl[i].trim();
                if ( $('curr_'+e) != null ) {
                    continue;
                } else {
                    if ( e.length > 0 ) {
                        r = new Request.JSON({url: 'translateJSON', onComplete: display_currval}).get({'field': 'curriculumSubject', 's': e});
                    }
                }
            }

        }
        window.addEvent('domready', function() {
            $('%s').addEvent('change', handle_curriculum);
            spc = document.getElements('span.closeCross');
            for (i=0; i<spc.length; i++) {
                pid = spc[i].parentNode.getAttribute('id');
                spc[i].addEvent('click', unmap.bind(spc[i], pid));
            }
        });

        ''' % id
        r += '</script>\n'
        return r

    def view(self, f, id, cls, w, tid, lang=None):
        """ curriculum field view. it should always be multivalued! """
        r = u""
        r += self._fieldLabel(cls, id, f.get('printable'))
        fval = self.context.get(f.get('name'), lang)

        u = queryUtility(ITranslator, f.get('name'))
        if u is not None:
            trans = []
            for x in fval:
                trans.append([x, u.translate(x)])
            #fval = ', '.join(trans)
            fval = trans

        if u is None:
            fval = ', '.join(fval)
        else:
            # translator applied
            cc = u''
            for x in range(len(fval)):
                e = fval[x]
                cc += e[1]
                if x != len(fval)-1:
                    cc += '<br />'
            fval = cc
        r += fval
        r += "</div>\n"
        return r


curriculum = Curriculum()