import troggle.settings as settings
from troggle.helper import login_required_if_public
from utils import render_with_context

from django.http import HttpResponse, HttpResponseRedirect, Http404
from  django.core.urlresolvers import reverse
from django.template import Context, loader
import django.forms as forms
from tinymce.widgets import TinyMCE
from troggle.flatpages.models import Redirect, EntranceRedirect
from troggle.core.models import Cave
import troggle.core.views_caves

import os
import re

def flatpage(request, path):
    try:
        r = Redirect.objects.get(originalURL = path)
        return HttpResponseRedirect(r.newURL) # Redirect after POST
    except Redirect.DoesNotExist:
        pass

    try:
        r = Cave.objects.get(url = path)
        return troggle.core.views_caves.caveSlug(request, r.slug)
    except Cave.DoesNotExist:
        pass

    try:
        r = EntranceRedirect.objects.get(originalURL = path)
        return troggle.core.views_caves.enranceSlug(request, r.entrance.slug)
    except EntranceRedirect.DoesNotExist:
        pass


    if path.startswith("noinfo") and settings.PUBLIC_SITE and not request.user.is_authenticated():
        return HttpResponseRedirect(reverse("auth_login") + '?next=%s' % request.path)
    try:
        o = open(os.path.normpath(settings.EXPOWEB + path), "rb")
    except IOError:
        raise Http404
    if path.endswith(".htm") or path.endswith(".html"):
        html = o.read()
        
        m = re.search(r"<head>(.*)</head>.*<body>(.*)</body>", html, re.DOTALL)
        mwithid = re.search(r'<head>(.*)</head>.*<body id="([^"]*)">(.*)</body>', html, re.DOTALL)
        if m:
            head, body = m.groups()
            bodyid = None
        elif mwithid:
            head, bodyid, body = mwithid.groups()
        else:
            return HttpResponse(html + "Page could not be split into header and body")
        if re.search(r"iso-8859-1", html):
            body = unicode(body, "iso-8859-1")
        return render_with_context(request, 'flatpage.html', {'editable': True, 'path': path, 'head': head, 'body': body, "bodyid": bodyid})
    else:
        return HttpResponse(o.read())

@login_required_if_public
def editflatpage(request, path):
    try:
        r = CaveRedirect.objects.get(originalURL = path)
        return troggle.core.views_caves.editCave(request, r.cave.slug)
    except CaveRedirect.DoesNotExist:
        pass


    try:
        filepath = os.path.normpath(settings.EXPOWEB + path)
        o = open(filepath, "r")
    except IOError:
        raise Http404
    html = o.read()
    m = re.search(r"<head>(.*)</head>.*<body>(.*)</body>", html, re.DOTALL)
    if m:
        head, body = m.groups()
        if re.search(r"iso-8859-1", html):
            body = unicode(body, "iso-8859-1")
    else:
        return HttpResponse("Page could not be split into header and body")
    if request.method == 'POST': # If the form has been submitted...
        flatpageForm = FlatPageForm(request.POST) # A form bound to the POST data
        if flatpageForm.is_valid():# Form valid therefore write file
            f = open(filepath, "w")
            template = loader.get_template('dataformat/flatfile.html')
            context = Context({'form': flatpageForm.cleaned_data, 'head': head})
            f.write(template.render(context))
            f.close()
            return HttpResponseRedirect(reverse('flatpage', args=[path])) # Redirect after POST
    else:
        flatpageForm = FlatPageForm({"html": body})
    return render_with_context(request, 'editflatpage.html', {'path': path, 'form': flatpageForm, })

class FlatPageForm(forms.Form):
        html = forms.CharField(widget=TinyMCE(attrs={'cols': 80, 'rows': 30}))