from zope.interface import implements
from zope.component import queryUtility
from waramulib.interfaces import IWidget
from interfaces import IVocabulary, ITranslator

from utils import getLanguage, translate

class Default(object):
    implements(IWidget)

    def __init__(self, context):
        self.context = context

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

    def _fieldLabel(self, cls, id, title):
        return u"""
        <div class="field%s">
        <label for="%s">%s</label>
        """ % (cls, id, translate(self, title, getLanguage(self.context.request)))

    def view(self, f, id, cls, w, tid, lang=None):
        """ view form """
        translatorLang = getLanguage(self.context.request)
        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:
                if not x: continue # omit empty values
                trans.append([x, u.translate(x, translatorLang)])
            #fval = ', '.join(trans)
            fval = trans
        if f.get('name') == 'url':
            # http://ait.opetaja.ee/WaramuWeb/metadata?catalog=1&id=9b0cebeb9c76be497c22d87d2448c82accbcc18d
            wurl = w.getWaramuWebUrl()
            # TODO: add cid - catalog id here
            cid = None
            if cid is None: cid = ""
            else: cid = 'catalog='+cid+'&'
            wid = self.context.getId()
            flink = '%smetadata?%sid=%s' % (wurl, cid, wid)
            r += '<a href="'+flink+'">'+fval+'</a>'
        elif f.get('vocabulary') == '1':
            if (f.get('type') == 'MultiString' or f.get('type') == 'MultiInteger') and fval is not None:
                for nr in range(len(fval)):
                    k = fval[nr]
                    if not k:
                        continue
                    linkv = ''
                    linkt = ''
                    if isinstance(k, list):
                        linkv = k[0]
                        linkt = k[1]
                    else:
                        linkv = linkt = k
                    r += '<a href="browse/by/'+f.get('name')+'/'+linkv+'">'+linkt+'</a>'
                    if nr != len(fval)-1:
                        if len(fval) > nr+1:
                            if fval[nr+1]:
                                r += ', '
            else:
                r += fval
        else:
            if (f.get('type') == 'MultiString' or f.get('type') == 'MultiInteger') and fval is not None:
                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 += ', '
                    fval = cc
            r += fval

        r += "</div>\n"
        return r

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

        fval = self.context.get(f.get('name'), lang)


        u = queryUtility(IVocabulary, f.get('name'))

        selb = f.get('fixedVocabulary') == '1'
        vocSource = None
        if selb:
            vocSource = w
        else:
            if u is not None:
                if u.restricts():
                    selb = True
                    vocSource = u

        if selb:
            r += '<select id="'+id+'" name="'+id+'">\n'
            r += '\t<option value=""></option>\n'
            for v in vocSource.getVocabulary(tid, f.get('name')):
                if v[1] is None:
                    continue
                r += '\t<option value="'+v[1]+'"'
                for fv in fval:
                    if fv == v[1]:
                        r += ' SELECTED="SELECTED"'
                        break
                r += '>'+v[1]+'</option>\n'
            r += '</select>'

        else:
            if (f.get('type') == 'MultiString' or f.get('type') == 'MultiInteger') and fval is not None:
                fval = ', '.join(fval)
            r += '\t<input type="text" id="'+id+'" name="'+id+'" value="'+fval+'" />\n'

            if u is not None or f.get('vocabulary') == '1':
                r += '\t<span class="vocabularyButton" onclick="javascript:vocabulary.display_vocabulary(\''+f.get('name')+'\', \''+id+'\')">V</span>\n'

        r += "</div>\n"
        return r