import sys

import peewee
from PyQt5 import Qt

from lib.helpers import timing
from PyQt5.QtCore import Qt, QTimer, QThread
from PyQt5.QtGui import QKeySequence, QPixmap, QPalette, QColor
from PyQt5.QtWidgets import QShortcut, QApplication
from ui.widget import Widget
from lib import db
from lib.db.models import Recipes
test_scan="xxx\nyyy\nzzz"

class Barcode_Recipe_Selection(Widget):
    def __init__(self, parent):
        super().__init__()
        self.parent=parent
        self.recipe_db_model=Recipes
        self.debounce_time = 200
        self.barcode_input_l.textChanged.connect(self.debounce)
        self.status_palettes = {
            True: QPalette(),
            "": QPalette(),
            "warning": QPalette(),
            False: QPalette(),
            None: QPalette(),
        }
        self.status_palettes[True].setColor(QPalette.Base, Qt.green)
        self.status_palettes[False].setColor(QPalette.Base, Qt.red)
        self.status_palettes["warning"].setColor(QPalette.Base, QColor(255, 165, 0))
        self.status_palettes[""].setColor(QPalette.Base, QColor(255, 255, 0))

        self.recipe_selection_b.clicked.connect(self.parent.set_recipe_mode_table)
        self.barcode_input_l.setFocus()

        self.focus_timer = QTimer()
        self.focus_timer.setSingleShot(True)
        self.focus_timer.timeout.connect(self.set_focus)

        self.wait_timer = QTimer()
        self.wait_timer.setSingleShot(True)
        self.wait_timer.timeout.connect(self.get)

        self.ok_timer = QTimer()
        self.ok_timer.setSingleShot(True)
        self.ok_timer.timeout.connect(self.set_recipe)

    def start(self, recipe=None, step=None, pieces=None):

        self.barcode_input_l.setPalette(self.status_palettes[None])
        self.barcode_input_l.setPlainText("")
        self.barcode_input_l.setFocus()
        self.focus_timer.start(500)

    def debounce(self):
        if self.wait_timer.remainingTime()>0:
            self.wait_timer.setInterval(self.debounce_time)
        else:
            self.wait_timer.start(self.debounce_time)

    def get(self, data=None, override=False):
        if data is None:
            data = self.barcode_input_l.toPlainText()
        if not len(data):
            data = None
        if data is None:
            return
        else:

            lines = data.splitlines()
            candidates = [i for i in lines if len(i)==10]
            if len(candidates)>0:
                # RECIPE CODE FOUND
                self.recipe=candidates[-1]
                self.barcode_input_l.setPalette(self.status_palettes[True])
                self.ok_timer.start(2000)

            else:
                # RECIPE CODE NOT FOUND
                self.barcode_input_l.setPalette(self.status_palettes[False])
                self.focus_timer.start(3000)

        # LOOKUP RECIPE

    def set_recipe(self):
        try:
            recipe = self.recipe_db_model.get_by_id(self.recipe)
            self.parent.set_recipe(recipe)
        except peewee.DoesNotExist:
            self.barcode_input_l.setPalette(self.status_palettes[False])
            self.focus_timer.start(3000)
            self.parent.centralWidget.set_text("RICETTA NON TROVATA",color="red")


    def set_focus(self):
        self.barcode_input_l.setFocus()
        self.barcode_input_l.setPlainText("")
        self.barcode_input_l.setPalette(self.status_palettes[""])
        if getattr(self.parent.centralWidget,"set_text"):
            self.parent.centralWidget.set_text("SCANSIONARE BARCODE SELEZIONE RICETTA")