#!/usr/bin/env python3
import threading
import time

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

from Channel import SVT, YouTube
from ChannelProvider import ChannelProvider
from Utils import make_sized_button

WIDTH = 720
HEIGHT = 1440
BTN_HEIGHT = 40
SPACER_HEIGHT = 10

class Cast(wx.Frame):
    def __init__(self, *args, **kw):
        """__init__.
        :param args:
        :param kw:
        """
        super().__init__(*args, **kw)
        self.m_selected_chromecast = None
        self.SetSizeHints(WIDTH, HEIGHT, maxW=WIDTH)
        self.m_index = 0
        self.m_chromecast_thr = threading.Thread(
            target=self.get_chromecasts, args=(), kwargs={}
        )
        self.m_chromecast_thr.start()
        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_providers: list[ChannelProvider] = [
            ChannelProvider(
                "SVT",
                channels=[
                    SVT.SVT("feed"),
                    SVT.SVT("ch-svt1"),
                    SVT.SVT("ch-svt2"),
                    SVT.SVT("ch-svt24"),
                ],
            ),
            ChannelProvider(
                "YouTube",
                channels=[
                    YouTube.YouTube("UCtESv1e7ntJaLJYKIO1FoYw"),
                    YouTube.YouTube("UC9-y-6csu5WGm29I7JiwpnA"),
                    YouTube.YouTube("UCoxcjq-8xIDTYp3uz647V5A"),
                    YouTube.YouTube("UCu6mSoMNzHQiBIOCkHUa2Aw"),
                ],
            ),
        ]
        self.m_selected_channel = None
        self.m_selected_provider_index = None
        self.show_provider_list(None)

    def get_chromecasts(self) -> None:
        """
        [TODO:description]

        :rtype None: [TODO:description]
        """
        self.m_chromecasts, self.m_browser = pychromecast.get_chromecasts()

    def show_provider_list(self, _) -> None:
        self.m_sizer.Clear(delete_windows=True)
        self.m_sizer = wx.BoxSizer(wx.VERTICAL)
        provider_index = 0
        for provider in self.m_providers:
            bitmap = provider.get_logo_as_bitmap()
            callback = lambda event, index=provider_index: self.show_channel_list(event, index)
            btn_sizer: wx.BoxSizer = make_sized_button(self.m_panel,bitmap,provider.get_name(),callback) 
            self.m_sizer.Add(btn_sizer)
            provider_index += 1

        self.m_panel.SetSizer(self.m_sizer)
        self.m_sizer.Fit(self)
        self.m_panel.Layout()

    def show_channel_list(self, _, provider_index) -> None:
        self.m_selected_provider_index = provider_index
        self.m_selected_provider = self.m_providers[provider_index]
        self.m_sizer.Clear(delete_windows=True)
        self.m_sizer = wx.BoxSizer(wx.VERTICAL)
        backbtn = wx.Button(self.m_panel, -1, label="Go back", size=(WIDTH, BTN_HEIGHT))
        backbtn.Bind(wx.EVT_BUTTON, lambda event: self.show_provider_list(event))
        self.m_sizer.Add(backbtn, wx.ALIGN_CENTER_VERTICAL)
        self.m_sizer.AddSpacer(SPACER_HEIGHT)
        channel_index = 0
        for channel in self.m_selected_provider.get_channels():
            bitmap = channel.get_logo_as_bitmap()
            callback = lambda event, index=channel_index: self.show_video_list(event, index)
            btn_sizer: wx.BoxSizer = make_sized_button(self.m_panel,bitmap,channel.get_name(),callback) 
            self.m_sizer.Add(btn_sizer)
            channel_index += 1

        self.m_sizer.AddSpacer(SPACER_HEIGHT)
        self.m_panel.SetSizer(self.m_sizer)
        self.m_sizer.Fit(self)
        self.m_panel.Layout()

    def show_video_list(self, _, index=0) -> None:
        """
        Shows a list of videos

        :param _ [TODO:type]: [TODO:description]
        :rtype None: [TODO:description]
        """
        self.m_sizer.Clear(delete_windows=True)
        self.m_sizer = wx.BoxSizer(wx.VERTICAL)

        channel = self.m_selected_provider.get_channel_by_index(index)
        if channel.wait():
            with wx.BusyInfo("Please wait, working..."):
                index = 0
                while channel.wait():
                    time.sleep(1)
                    wx.GetApp().Yield()

        backbtn = wx.Button(self.m_panel, -1, label="Go back", size=(WIDTH, BTN_HEIGHT))
        backbtn.Bind(
            wx.EVT_BUTTON,
            lambda event: self.show_channel_list(event, self.m_selected_provider_index),
        )
        self.m_sizer.Add(backbtn, wx.ALIGN_CENTER_VERTICAL)
        self.m_sizer.AddSpacer(SPACER_HEIGHT)
        for item in channel.get_items():
            title = wx.StaticText(self.m_panel, -1)
            title.SetLabelMarkup("<span weight='bold' >{}</span>".format(item["title"]))
            description = wx.StaticText(self.m_panel, -1, item["description"])

            description.Wrap(478)
            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"], provider_index=index: self.show_player(
                    event, link, provider_index
                ),
            )
            self.m_sizer.Add(title)
            self.m_sizer.Add(btn)
            self.m_sizer.Add(description)
            self.m_sizer.AddSpacer(SPACER_HEIGHT)
            self.m_index = self.m_index + 1
        self.m_sizer.AddSpacer(SPACER_HEIGHT)
        self.m_panel.SetSizer(self.m_sizer)
        self.m_sizer.Fit(self)
        self.m_panel.Layout()

    def show_player(self, _, uri, provider_index: int):
        """
        Show the video player

        :param _ event: unused
        :param uri str: the link to the video stream
        """
        self.m_sizer.Clear(delete_windows=True)
        self.m_sizer = wx.GridBagSizer()
        self.m_control = wx.media.MediaCtrl(
            self.m_panel,
            size=(WIDTH, HEIGHT),
            style=wx.SIMPLE_BORDER,
            szBackend=wx.media.MEDIABACKEND_GSTREAMER,
        )
        play_button = wx.Button(self.m_panel, -1, "Play")

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

        back_button = wx.Button(self.m_panel, -1, "Back")
        back_button.Bind(
            wx.EVT_BUTTON,
            lambda event, index=provider_index: self.show_video_list(event, index),
        )

        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))

        if not self.m_chromecast_thr.is_alive() and not self.m_selected_chromecast:
            chromecast_button = wx.Button(self.m_panel, -1, "Cast")
            chromecast_button.Bind(
                wx.EVT_BUTTON,
                lambda event, muri=uri, index=provider_index: self.select_chromecast(
                    event, muri, index
                ),
            )
            self.m_sizer.Add(chromecast_button, (2, 2))

        if self.m_selected_chromecast:
            self.Bind(
                wx.media.EVT_MEDIA_LOADED,
                lambda event, muri=uri: self.cast(event, muri),
            )
            play_button.Bind(wx.EVT_BUTTON, self.play_cast)
            pause_button.Bind(wx.EVT_BUTTON, self.pause_cast)
        else:
            self.Bind(wx.media.EVT_MEDIA_LOADED, self.play)
            play_button.Bind(wx.EVT_BUTTON, self.play)
            pause_button.Bind(wx.EVT_BUTTON, self.pause)

        self.Bind(wx.media.EVT_MEDIA_FINISHED, self.show_video_list)
        self.m_sizer.AddSpacer(SPACER_HEIGHT)
        self.load_uri(uri)
        self.m_panel.SetSizer(self.m_sizer)
        self.m_sizer.Fit(self)
        self.m_panel.Layout()
        self.m_panel.ScrollChildIntoView(self.m_control)

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

        for cast in self.m_chromecasts:
            friendly_name = cast.cast_info.friendly_name
            btn = wx.Button(self.m_panel, id=-1, label=friendly_name, size=(WIDTH, BTN_HEIGHT))
            btn.Bind(
                wx.EVT_BUTTON,
                lambda event, chromecast=cast, muri=uri, index=provider_index: self.set_chromecast(
                    event, chromecast, muri, index
                ),
            )
            self.m_sizer.Add(btn, wx.ALIGN_CENTER_VERTICAL)
        self.m_sizer.AddSpacer(SPACER_HEIGHT)
        self.m_panel.SetSizer(self.m_sizer)
        self.m_sizer.Fit(self)
        self.m_panel.Layout()

    def set_chromecast(self, event, chromecast, uri, provider_index):
        self.m_selected_chromecast = chromecast
        self.show_player(event, uri, provider_index)

    def cast(self, event, uri):
        mimetype = "video/mp4"
        cast = self.m_selected_chromecast
        cast.wait()
        cast.media_controller.play_media(uri, mimetype)
        # Wait for player_state PLAYING
        player_state = None
        has_played = False

        while True:
            if player_state != cast.media_controller.status.player_state:
                player_state = cast.media_controller.status.player_state
                print("Player state:", player_state)

            if player_state == "PLAYING":
                has_played = True

                break

            if (
                cast.socket_client.is_connected
                and has_played
                and player_state != "PLAYING"
            ):
                has_played = False
                cast.media_controller.play_media(uri, mimetype)

            time.sleep(0.1)
        self.m_browser.stop_discovery()

    def pause_cast(self, event):
        cast = self.m_selected_chromecast
        cast.media_controller.pause()

    def play_cast(self, event):
        cast = self.m_selected_chromecast
        cast.media_controller.play()

    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()