import deform

from pyramid.httpexceptions import HTTPFound
from pyramid.renderers import render
from pyramid.security import remember, forget
from pyramid.view import view_config

from ordr2.models import User, Role
from ordr2.schemas.account import UserSchema

# user log in and log out

@view_config(
    context='ordr2:resources.Admin',
    permission='view',
    renderer='ordr2:templates/admin/admin_section.jinja2'
    )
def admin_section(context, request):
    ''' display the admin section '''
    new_users = request.dbsession.query(User).filter_by(role=Role.NEW).count()
    if new_users:
        plural = 's' if new_users > 1 else ''
        request.flash(
            'info',
            '{} new user{} have registered.'.format(new_users, plural),
            '''Please <a href="{}">take a look at them</a> and confirm or
               reject the registration by setting the role accordingly. This
               message will disappear when all new registrations have been
               processed.'''.format(
                request.resource_url(context, 'users', query={'role': 'new'})
                )
            )
    return {}


@view_config(
    context='ordr2:resources.UserList',
    permission='view',
    renderer='ordr2:templates/admin/user_list.jinja2'
    )
def user_list(context, request):
    ''' display the user list '''
    users = context.items()
    roles = [(role.value.lower(), role.value.capitalize()) for role in Role]
    return {'users':users, 'roles':roles}


@view_config(
    context='ordr2:resources.UserList',
    name = 'changeview',
    permission='view',
    request_method='POST'
    )
def change_column_view(context, request):
    ''' changes the columns to display '''
    display = {
        'first': False,
        'last': False,
        'email': False
        }
    columns = [col for key, col in request.POST.items() if key == 'display']
    display.update({ column: True for column in columns })
    request.session['display']['users'] = display
    return HTTPFound(context.url())


@view_config(
    context='ordr2:resources.UserAccount',
    permission='edit',
    request_method='GET',
    renderer='ordr2:templates/admin/user_edit.jinja2'
    )
def user_account_form(context, request):
    form = UserSchema.as_form(request)
    form_data = {
        'user_name': context.model.user_name,
        'first_name': context.model.first_name,
        'last_name': context.model.last_name,
        'email': context.model.email,
        'role': context.model.role.name
        }
    form.set_appstruct(form_data)
    return {'form': form}


@view_config(
    context='ordr2:resources.Account',
    name='settingsx',
    permission='settings',
    request_method='POST',
    renderer='ordr2:templates/account/settings.jinja2'
    )
def settingsx_form_processing(context, request):
    ''' display the user settings form '''

    form = SettingsSchema.as_form(request)
    data = request.POST.items()
    try:
        appstruct = form.validate(data)
    except deform.ValidationFailure as e:
        return {'form': form}

    # form validation sucessful, change settings
    request.user.first_name = appstruct['general']['first_name']
    request.user.last_name = appstruct['general']['last_name']
    request.user.email = appstruct['general']['email']
    if appstruct['change_password']['new_password']:
        request.user.set_password(appstruct['change_password']['new_password'])
        if len(appstruct['change_password']['new_password']) < 8:
            request.flash(
                'warning',
                'You should really consider using a longer password.'
                )

    request.flash('success', 'Your account information has been updated.')

    return {'form': form}