from kivy.app import App
from kivy.uix.button import ButtonBehavior
from kivy.uix.image import Image
from kivy.uix.gridlayout import GridLayout
from kivy.uix.scrollview import ScrollView
from kivy.uix.label import Label
from kivy.config import Config
from kivy.graphics import Color, Rectangle
from kivy.lang import Builder
from kivy.properties import ObjectProperty
from kivy.properties import StringProperty
from kivy.properties import BooleanProperty
import kivy.utils

Config.set('graphics', 'resizable', '0')
Config.set('graphics', 'width', '540')
Config.set('graphics', 'height', '960')
Config.set('graphics', 'right', 1)
Config.set('graphics', 'top', 1)

Builder.load_file("coinbar.kv")
Builder.load_file("imagebutton.kv")


class ImageButton(ButtonBehavior,Image):
    instance = StringProperty()
    am_i_selected = BooleanProperty()
    def __init__(self,**kwargs):
        super(ImageButton, self).__init__(**kwargs)
# ---------- sets the image source ----------
    def on_instance(self, *args):
        pass
        if self.instance == "noteskeeper":
          self.am_i_selected = True
        else:
            self.am_i_selected = False
        #print(self.instance)
        #print(self.am_i_selected)

# ---------- on_press behavior of the coins ----------
    def select_coin(self):
        print(self.instance)

# ---------- NotesKeeper is selected at App start ----------
        selected = self.parent.coinbar_selected
        print(selected)
        if not self.am_i_selected:
            self.parent.ids[selected].am_i_selected = False
            self.parent.ids[selected].source = "cents/unselected/" + self.parent.ids[selected].instance + ".png"
            self.am_i_selected = True
            self.source = "cents/selected/" + self.instance + ".png"
            self.parent.coinbar_selected = self.instance
            return
        if self.am_i_selected:
            if self.instance == "noteskeeper":
                return
        else:
            self.am_i_selected = False
            self.source = "cents/unselected/" + self.instance + ".png"

# ---------- CoinBar ----------
class CoinBar(GridLayout):
    def __init__(self,**kwargs):
        super(CoinBar, self).__init__(**kwargs)
        self.coinbar_selected = "noteskeeper"
# ---------- Sets the CoinBar background color to white ----------
        with self.canvas.before:
            Color(rgb=(kivy.utils.get_color_from_hex("ffffff")))
            self.rect = Rectangle(size=self.size, pos=self.pos)
        self.bind(pos=self.update_bind_background, size=self.update_bind_background)
    def update_bind_background(self, *args):
        self.rect.pos = self.pos
        self.rect.size = self.size

# ---------- CatBar ----------
class CatBar(GridLayout):
    cats = ["Reminder", "Idea", "Funny", "Well written"]
    def __init__(self,**kwargs):
        self.rows = 1
        super(CatBar, self).__init__(**kwargs)
# ---------- creates the cats ----------
        for cat in self.cats:
            new_cat = ImageButton(instance=cat)
            self.add_widget(new_cat)

# ---------- Previews ----------
class Previews(ScrollView):
    def __init__(self,**kwargs):
        super(Previews, self).__init__(**kwargs)
# ---------- Middle Grid ----------
        noteskeeper_previews = NotesKeeperPreview()
        noteskeeper_previews.cols = 1
        x = ImageButton()
        x.source = "cents/NotesKeeper.png"
        noteskeeper_previews.add_widget(x)

# ----------- creation of the Previews ----------
        self.twocent_previews = GridLayout()
        self.twocent_previews.cols = 1


        self.add_widget(noteskeeper_previews)

# ---------- NotesKeeperPreview ----------
class NotesKeeperPreview(GridLayout):
    def __init__(self, **kwargs):
        super().__init__()
        with self.canvas.before:
            Color(rgb=(kivy.utils.get_color_from_hex("ffffff")))
            self.rect = Rectangle(size=self.size, pos=self.pos)
        self.bind(pos=self.update_bind_background, size=self.update_bind_background)

    def update_bind_background(self, *args):
        self.rect.pos = self.pos
        self.rect.size = self.size

# ---------- ButtonBar ----------
class ButtonBar(GridLayout):
    def __init__(self, **kwargs):
        super(ButtonBar, self).__init__(**kwargs)
        self.rows = 1
# ---------- sets background of the Button Bar to white ----------
        with self.canvas.before:
            Color(rgb=(kivy.utils.get_color_from_hex("ffffff")))
            self.rect = Rectangle(size=self.size, pos=self.pos)
        self.bind(pos=self.update_bind_background, size=self.update_bind_background)

# ---------- the buttons created at App startup ----------
        self.b1 = Label()
        self.b2 = Label()
        self.b3 = Label()
        self.b4 = Label()

# ---------- add_cat adds a new cat in the cat bar together with a note for that cat ----------
        self.add_cat = ImageButton(instance="add_cat")
        self.add_cat.on_press = self.plus_cat

# ---------- save_thought opens the NoteKeeping Widget for you to save a note in ----------
        self.save_thought = ImageButton(instance="save_thought")
        self.save_thought.on_press = self.plus_thought

        self.b3 = self.add_cat
        self.b4 = self.save_thought
        self.add_buttons()
# ---------- adds b1,b2,b3,b4 to the ButtonBar GridLayout ----------
    def add_buttons(self):
        self.add_widget(self.b1)
        self.add_widget(self.b2)
        self.add_widget(self.b3)
        self.add_widget(self.b4)

# ---------- future function to add a cat to the category bar ----------
    def plus_cat(self):
        print("This adds a cat")

# ---------- future function to add a thought to the previews ----------
    def plus_thought(self):
        print("this saves a thought")

# ---------- binds the background size and position of the background rectangle to the button bar size/pos ----------
    def update_bind_background(self, *args):
        self.rect.pos = self.pos
        self.rect.size = self.size

# ---------- MainScreen ----------
class MainScreen(GridLayout):
# ---------- Root of the main.kv grid. Has the coin_bar, cat_bar, previews and button_bar as children  ----------
    def __init__(self,**kwargs):
        super(MainScreen, self).__init__(**kwargs)

# ---------- App Start ----------
class MainApp(App):
    def __init__(self,**kwargs):
        super(MainApp, self).__init__(**kwargs)

    def build(self):
        return MainScreen()


MainApp().run()