from pyramid.view import (
    view_config,
    forbidden_view_config,
)
from pyramid.httpexceptions import HTTPFound
from pyramid.security import remember, forget
from ..services.user import UserService
from ..services.blog_record import BlogRecordService
from ..forms import UserCreateForm
from ..models.user import User


@view_config(route_name='home', renderer='cao_blogr:templates/home.jinja2')
def home(request):
    # get the last created posts
    last_ten = BlogRecordService.get_last_created(request)

    return {
        'page_title': "Bienvenue sur mon blog",
        'last_ten': last_ten,
        }


@view_config(route_name='apropos',
             renderer='cao_blogr:templates/apropos.jinja2')
def apropos(request):

    return {
        'page_title': "A propos",
        }


@view_config(route_name='login', renderer='cao_blogr:templates/login.jinja2')
@forbidden_view_config(renderer='cao_blogr:templates/login.jinja2')
def login(request):
    username = ''
    login_url = request.route_url('login')

    referrer = request.url
    if referrer == login_url:
        referrer = '/' # never use the login form itself as came_from
    
    came_from = request.params.get('came_from', referrer)
    username = request.POST.get('username')
    userpwd = request.POST.get('password')
    if username:
        user = UserService.by_name(request, username)
        if user and user.verify_password(userpwd):
            headers = remember(request, username)
            request.session.flash("Bienvenue %s !" % username, 'success')
            return HTTPFound(location=came_from, headers=headers)
        else:
            headers = forget(request)
            request.session.flash("Login et mot de passe invalides. La connexion a échoué.", "danger")

    return {
        'page_title': "",
        'came_from': came_from,
        'login_url': login_url,
        }


@view_config(route_name='logout', renderer='string')
def logout(request):
    username = request.authenticated_userid
    headers = forget(request)
    request.session.flash('Au revoir ' + username + ' !', 'success')
    return HTTPFound(location=request.route_url('home'), headers=headers)


@view_config(route_name='users', renderer='cao_blogr:templates/users.jinja2', permission='manage')
def users(request):
    # get all users
    users = UserService.all(request)
    return {
        'page_title': "Liste des utilisateurs",
        'users': users
        }


@view_config(route_name='user_add', renderer='cao_blogr:templates/user_add.jinja2', permission='manage')
def user_add(request):
    name = request.matchdict['name']

    # nouveau
    form = UserCreateForm(request.POST)
 
    if 'form.submitted' in request.params and form.validate():
        # créer nouveau
        new_user = User(name=form.username.data)
        new_user.set_password(form.password.data.encode('utf8'))
        request.dbsession.add(new_user)
        return HTTPFound(location=request.route_url('users'))
    
    return {
        'page_title': 'Nouvel utilsateur',
        'form': form, 
        'name': name,
        }


@view_config(route_name='user_pwd', renderer='cao_blogr:templates/user_pwd.jinja2', permission='manage')
def user_pwd(request):
    # reset password or delete user
    name = request.matchdict['name']

    # lire la fiche du membre 
    entry = UserService.by_name(request, name)
    if not entry:
        request.session.flash(u"Utilisateur non trouvé : %s" % name, 'warning')
        return HTTPFound(location=request.route_url('users'))

    if 'form.submitted' in request.params:
        mdp = request.params["new_password"]
        entry.set_password(mdp.encode('utf8'))
        return HTTPFound(location=request.route_url('users'))

    if 'form.deleted' in request.params:
        UserService.delete(request, entry.id)
        request.session.flash("La fiche a été supprimée avec succès.", 'success')
        return HTTPFound(location=request.route_url('users'))

    
    return {
        'page_title': "Utilisateur : %s" %(entry.name),
        'entry': entry,
    }