import copy
from django.shortcuts import get_object_or_404, render_to_response
from django.template.loader import render_to_string
from django.template import RequestContext
from django.core.urlresolvers import reverse
from django.http import HttpResponse, HttpResponseRedirect
from django.contrib.auth.forms import PasswordChangeForm
from django.contrib.auth.decorators \
    import login_required
from django.utils import simplejson
from django.utils.translation import ugettext as _
from modoboa.lib import _render, _ctx_ok, _ctx_ko, getctx, parameters
from modoboa.lib.authbackends import crypt_password
from forms import ChangePasswordForm
from modoboa.admin.models import Mailbox

@login_required
def index(request):
    return HttpResponseRedirect(reverse(preferences))

@login_required
def changepassword(request):
    if request.user.id == 1:
        target = request.user
    else:
        target = Mailbox.objects.get(user=request.user.id)
    error = None
    if request.method == "POST":
        form = ChangePasswordForm(target, request.POST)
        if form.is_valid():
            if request.user.id != 1:                
                target.password = crypt_password(request.POST["confirmation"])
            else:
                target.set_password(request.POST["confirmation"])
            target.save()
            ctx = _ctx_ok("")
            return HttpResponse(simplejson.dumps(ctx), 
                                mimetype="application/json")
        ctx = _ctx_ko("userprefs/chpassword.html", {
                "form" : form, "error" : error
                })
        return HttpResponse(simplejson.dumps(ctx), mimetype="application/json")

    form = ChangePasswordForm(target)
    return _render(request, 'userprefs/chpassword.html', {
            "form" : form
            })

@login_required
def preferences(request):
    apps = sorted(parameters._params.keys())
    gparams = []
    for app in apps:
        if not len(parameters._params[app]['U']):
            continue
        tmp = {"name" : app, "params" : []}
        for p in sorted(parameters._params[app]['U']):
            param_def = parameters._params[app]['U'][p]
            newdef = copy.deepcopy(param_def)
            newdef["name"] = p
            newdef["value"] = parameters.get_user(request.user, p, app=app)
            tmp["params"] += [newdef]
        gparams += [tmp]

    return _render(request, 'userprefs/preferences.html', {
            "gparams" : gparams
            })

@login_required
def savepreferences(request):
    for pname, v in request.POST.iteritems():
        if pname == "update":
            continue
        app, name = pname.split('.')
        parameters.save_user(request.user, name, v, app=app)

    ctx = getctx("ok")
    return HttpResponse(simplejson.dumps(ctx), mimetype="application/json")

@login_required
def confirm(request):
    return _render(request, 'userprefs/confirm.html', {
            "msg" : request.GET["question"]
            })