import logging

import kivy.app
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.button import Button
from kivy.uix.label import Label
from kivy.uix.splitter import Splitter
from kivy.uix.textinput import TextInput
from kivy.uix.treeview import TreeView
from kivy.uix.widget import Widget


# +----------------------------------------------------+
# |      +--------------+  +-----------+ +-----------+ |
# | Path | <path value> |  | Selct Btn | | Search    | |
# |      +--------------+  +-----------+ +-----------+ |
# | +------------------------------------------------+ |
# | | Tree View                                      | |
# | | root         | progress bar | |dedup btn|      | |
# | | + layer 1    | progress bar | |dedup btn|      | |
# | | | + layer 2  | progress bar | |dedup btn|      | |
# | | .....                                          | |
# | | + layer N    | progress bar | |dedup btn|      | |
# | +------------------------------------------------+ |
# | +------------------------------------------------+ |
# | | <log data>                                     | |
# | +------------------------------------------------+ |
# +----------------------------------------------------+

LOG = logging.getLogger(__name__)

class theApp(BoxLayout):

    def __init__(self, **kwargs):
        # force the widget into horizontal boxing so everything goes top-down
        kwargs["orientation"] = "horizontal"
        super(theApp, self).__init__(**kwargs)
        self.selected_directory = ""

        # path layout will use vertical boxing so everything goes left to right
        self.path_layout = BoxLayout(orientation='vertical')

        # [Path] label
        self.lbl_path = Label(text="Path")
        self.path_layout.add_widget(self.lbl_path)

        # Path input box - we'll let the user type it in
        self.txt_path = TextInput(text=self.selected_directory)
        # probably should add something to validate the text
        # and enable/disable the buttons based on the result
        self.path_layout.add_widget(self.txt_path)

        # Select button to pop-up the File/Direction Selection dialog
        self.btn_select_path = Button(text="Select...")
        self.btn_select_path.bind(self.select_path)
        self.path_layout.add_widget(self.btn_select_path)

        # Generate button to be used once the user has selected
        # entries in the tree view that is displaying the file system layout
        self.btn_generate_plan = Button(text="Generate Plan")
        self.btn_generate_plan.bind(self.generate_plan)
        self.path_layout.add_widget(self.btn_generate_plan)

        # splitter to be able to resize stuff
        self.splitter_path = Splitter(sizable_from="top")
        self.splitter_path.add_widget(self.path_layout)

        # tree view for the file system view
        self.filesystem_viewer = TreeView()

        self.add_widget(self.splitter_path)

    def select_path(self, btn, btn_state):
        pass

    def generate_plan(self, btn, btn_state):
        pass


class App(kivy.app.App):

    def build(self):
        return theApp()