#!/usr/bin/env python3
from typing import NewType

import wx
import wx.lib.scrolledpanel as scrolled
import wx.media

from ChannelProvider import SVT, ChannelProvider

ChannelProvider = NewType('ChannelProvider', ChannelProvider)


class Cast(wx.Frame):
    def __init__(self, *args, **kw):
        """__init__.
        :param args:
        :param kw:
        """
        super().__init__(*args, **kw)
        self.m_index = 0
        self.m_sizer: wx.Sizer = wx.BoxSizer(wx.VERTICAL)
        self.m_panel: wx.lib.scrolledpanel.ScrolledPanel = scrolled.ScrolledPanel(
            self, -1, style=wx.VSCROLL)
        self.m_control = None
        self.m_panel.SetupScrolling()
        self.m_panel.SetSizer(self.m_sizer)
        self.m_channels: list[ChannelProvider] = [SVT.SVT()]
        self.show_list(None)

    def show_list(self, _):
        self.m_sizer.Clear(delete_windows=True)
        self.m_sizer = wx.BoxSizer(wx.VERTICAL)


        for channel in self.m_channels:
            for item in channel.get_items():
                title = wx.StaticText(self.m_panel, -1, item['title'])
                description = wx.StaticText(self.m_panel, -1,
                                            item['description'])
                bitmap = item['thumbnail']
                btn = wx.BitmapButton(self.m_panel, id=self.m_index, bitmap=bitmap)
                btn.Bind(wx.EVT_BUTTON,
                         lambda event, link=item['link']: self.show_player(
                             event, link))
                self.m_sizer.Add(title)
                self.m_sizer.Add(btn)
                self.m_sizer.Add(description)
                self.m_index = self.m_index + 1
        self.m_panel.SetSizer(self.m_sizer)
        self.m_panel.Layout()

    def show_player(self, _, uri):
        self.m_sizer.Clear(delete_windows=True)
        self.m_sizer = wx.GridBagSizer()
        self.m_control = wx.media.MediaCtrl(
            self.m_panel,
            size=(480, 480),
            style=wx.SIMPLE_BORDER,
            szBackend=wx.media.MEDIABACKEND_GSTREAMER)
        play_button = wx.Button(self.m_panel, -1, "Play")
        play_button.Bind(wx.EVT_BUTTON, self.play)

        pause_button = wx.Button(self.m_panel, -1, "Pause")
        pause_button.Bind(wx.EVT_BUTTON, self.pause)

        back_button = wx.Button(self.m_panel, -1, "Back")
        back_button.Bind(wx.EVT_BUTTON, self.show_list)

        self.m_sizer.Add(self.m_control, (0, 0))
        self.m_sizer.SetItemSpan(0, (0, 6))
        self.m_sizer.Add(play_button, (1, 1))
        self.m_sizer.Add(pause_button, (1, 2))
        self.m_sizer.Add(back_button, (1, 3))

        self.Bind(wx.media.EVT_MEDIA_LOADED, self.play)
        self.Bind(wx.media.EVT_MEDIA_FINISHED, self.show_list)
        self.load_uri(uri)
        self.m_panel.SetSizer(self.m_sizer)
        self.m_panel.Layout()
        self.m_panel.ScrollChildIntoView(self.m_control)

    def load_uri(self, uri):
        self.m_control.LoadURI(uri)

    def play(self, _):
        self.m_control.Play()

    def pause(self, _):
        self.m_control.Pause()

    def quit(self, _):
        self.Destroy()


if __name__ == '__main__':
    # When this module is run (not imported) then create the app, the
    # frame, show it, and start the event loop.
    app: wx.App = wx.App()
    frm: Cast = Cast(None, title='Cast')
    frm.Show()
    app.MainLoop()