from sejf.modules.base import BaseModule, Schema, fields
from kivy.core.window import Window


class BarcodeModule(BaseModule):
    text_buffer: str = ""

    class ConfigSchema(Schema):
        code = fields.String(missing="jp2gmd")

    def __init__(self, *args, **kwargs):
        super(BarcodeModule, self).__init__(*args, **kwargs)

        self._keyboard = Window.request_keyboard(None, self, "text")
        self._keyboard.bind(on_textinput=self._on_keyboard_down)

    def build(self, parent):
        return None

    def _on_keyboard_down(self, widget, text):
        self.text_buffer += text
        self.text_buffer = self.text_buffer[-len(self.config["code"]) :]

        if self.text_buffer == self.config["code"]:
            self.finished = True