#This file is part of Tryton.  The COPYRIGHT file at the top level of
#this repository contains the full copyright notices and license terms.
'Action'
import gtk
from tryton.gui.window.view_form.screen import Screen
import tryton.rpc as rpc
import tryton.common as common
from tryton.pyson import PYSONDecoder
import gettext
from tryton.signal_event import SignalEvent
from tryton.gui.window.win_form import WinForm
from tryton.common import RPCExecute, RPCException
from tryton.action import Action as GenericAction
_ = gettext.gettext


class Action(SignalEvent):

    def __init__(self, attrs=None, context=None):
        super(Action, self).__init__()
        self.name = attrs['name']
        self.context = context or {}

        try:
            self.action = RPCExecute('model', 'ir.action.act_window', 'get',
                self.name)
        except RPCException:
            raise

        view_ids = None
        self.action['view_mode'] = None
        if self.action.get('views', []):
            view_ids = [x[0] for x in self.action['views']]
            self.action['view_mode'] = [x[1] for x in self.action['views']]
        elif self.action.get('view_id', False):
            view_ids = [self.action['view_id'][0]]

        if 'view_mode' in attrs:
            self.action['view_mode'] = attrs['view_mode']

        self.action.setdefault('pyson_domain', '[]')
        self.context.update(rpc.CONTEXT)
        self.context['_user'] = rpc._USER
        self.context.update(PYSONDecoder(self.context).decode(
            self.action.get('pyson_context', '{}')))

        eval_ctx = self.context.copy()
        self.context.update(PYSONDecoder(eval_ctx).decode(
            self.action.get('pyson_context', '{}')))

        self.domain = []
        self.update_domain([])

        search_context = self.context.copy()
        search_context['context'] = self.context
        search_context['_user'] = rpc._USER
        search_value = PYSONDecoder(search_context).decode(
            self.action['pyson_search_value'] or '{}')

        self.widget = gtk.Frame()
        self.widget.set_border_width(0)

        vbox = gtk.VBox(homogeneous=False, spacing=3)
        self.widget.add(vbox)

        self.title = gtk.Label()
        self.widget.set_label_widget(self.title)
        self.widget.set_label_align(0.0, 0.5)
        self.widget.show_all()

        self.screen = Screen(self.action['res_model'],
            mode=self.action['view_mode'], context=self.context,
            view_ids=view_ids, domain=self.domain,
            search_value=search_value, row_activate=self.row_activate)
        vbox.pack_start(self.screen.widget, expand=True, fill=True)
        name = self.screen.current_view.title
        self.screen.signal_connect(self, 'record-message',
            self._active_changed)

        if attrs.get('string'):
            self.title.set_text(attrs['string'])
        elif self.action.get('window_name'):
            self.title.set_text(self.action['name'])
        else:
            self.title.set_text(name)

        self.widget.set_size_request(int(attrs.get('width', -1)),
                int(attrs.get('height', -1)))

        self.screen.search_filter()

    def row_activate(self):
        if not self.screen.current_record:
            return

        if (self.screen.current_view.view_type == 'tree' and
                self.screen.current_view.widget_tree.keyword_open):
            GenericAction.exec_keyword('tree_open', {
                'model': self.screen.model_name,
                'id': self.screen.id_get(),
                'ids': [self.screen.id_get()],
                }, context=self.screen.context.copy(), warning=False)
        else:
            def callback(result):
                if result:
                    self.screen.current_record.save()
                else:
                    self.screen.current_record.cancel()
            WinForm(self.screen, callback)

    def set_value(self, mode, model_field):
        self.screen.current_view.set_value()
        return True

    def display(self):
        self.screen.search_filter(self.screen.screen_container.get_text())

    def _active_changed(self, *args):
        self.signal('active-changed')

    def _get_active(self):
        if self.screen and self.screen.current_record:
            return common.EvalEnvironment(self.screen.current_record)

    active = property(_get_active)

    def update_domain(self, actions):
        domain_ctx = self.context.copy()
        domain_ctx['context'] = domain_ctx
        domain_ctx['_user'] = rpc._USER
        for action in actions:
            if action.active:
                domain_ctx[action.name] = action.active
        new_domain = PYSONDecoder(domain_ctx).decode(
                self.action['pyson_domain'])
        if self.domain == new_domain:
            return
        del self.domain[:]
        self.domain.extend(new_domain)
        if hasattr(self, 'screen'):  # Catch early update
            # Using idle_add to prevent corruption of the event who triggered
            # the update.
            def display():
                if self.screen.widget.props.window:
                    self.display()
            gtk.idle_add(display)
