from model import Translation, Sense, Example
from message.simple_messages import ClickMessage
from view import modals
from browser import document


class ShowMenu(ClickMessage):
    def on_event(self, event):
        location_x = event.currentTarget.offsetLeft
        location_y = event.currentTarget.offsetTop + event.currentTarget.offsetHeight
        self.menu_location = (location_x, location_y)
        super().on_event(event)
        
        
# Special message to handle ctrl+click, shift+click and click
# overwrite update_model_default/ctrl/shift
class KeyPlusClickMessage(ShowMenu):
    def on_event(self, event):
        super().on_event(event)
        self.ctrl = event.ctrlKey
        self.shift = event.shiftKey
    
    def update_model(self, model):
        if self.ctrl:
            self.update_model_ctrl(model)
        elif self.shift:
            document.getSelection().removeAllRanges()
            self.update_model_shift(model)
        else:
            self.update_model_default(model)

    def update_model_ctrl(self, model):
        pass
   
    def update_model_shift(self, model):
        pass
   
    def update_model_default(self, model):
        pass
   


class ShowTranslationMenu(ShowMenu):
    def update_model(self, model):
        model.menu_location = self.menu_location
        model.translation = self.get_arg(0, Translation)
        model.menu_target = model.translation


class ShowSenseMenu(ShowMenu):
    def update_model(self, model):
        model.menu_location = self.menu_location
        sense = self.get_arg(0, Sense)
        model.menu_target = sense
        
        
class ShowExampleMenu(KeyPlusClickMessage):
    def update_model_default(self, model):
        example = self.get_arg(0, Example)

        # if some are chosen, then show modal for choosing actions
        if len(model.chosen_examples) > 0 and example in model.chosen_examples:
            chosen_examples = model.chosen_examples
            multiword_example = False

            for chosen_example in chosen_examples:
                if chosen_example.is_multiword():
                    if multiword_example is False:
                        multiword_example = chosen_example
                    else:
                        multiword_example = False
                        break

            model.modal_set(lambda: modals.do_chosen_examples(chosen_examples, model, multiword_example))
        else:
            model.menu_location = self.menu_location
            model.menu_target = example
        
    def update_model_ctrl(self, model):
        example = self.get_arg(0, Example)
        
        if example in model.chosen_examples:
            model.chosen_examples.remove(example)
        else:
            model.chosen_examples.append(example)
            
    def update_model_shift(self, model):
        first_example = self.get_arg(0, Example)
        last_example = model.chosen_examples[model.chosen_examples.length - 1]
        adding = False
        
        # logic to add all senses between these two
        for sense in model.entry.senses:
            for example in sense.examples:
                match = example in (first_example, last_example)
                
                if adding and match:
                    adding = False
                elif match:
                    adding = True
                elif not adding:
                    continue
                
                if example not in model.chosen_examples:
                    model.chosen_examples.append(example)
        
    def reset(self):
        # special case, when choosing messages dont reset
        return not (self.ctrl or self.shift)

    def entry_redraw(self):
        # when choosing messages we need to redraw
        return self.ctrl or self.shift