#!/usr/bin/env python3
import io
import json
import sqlite3
from os import environ, makedirs, path
from typing import Callable, Union
from urllib.parse import urlparse

import requests
import wx

SIZE = wx.Size(100, 68)
MYPATH = path.dirname(path.abspath(__file__))
SCREEN_WIDTH = int(720 / 2)
BASEPATH = path.join(str(environ.get("HOME")), '.config/cast')
DB_FILE_NAME = 'cast.db'
SUB_TABLE = 'subscriptions'


def add_subscription(channel_id: str,
                     name: str,
                     basepath: str = BASEPATH,
                     filename: str = DB_FILE_NAME) -> None:
    fullpath = path.join(basepath, filename)
    if not path.isdir(basepath):
        makedirs(basepath)
    con = sqlite3.connect(fullpath)
    cur = con.cursor()
    create_query: str = '''CREATE TABLE IF NOT EXISTS {}
    (channel_id TEXT PRIMARY KEY, channel_name TEXT)'''.format(SUB_TABLE)
    cur.execute(create_query)
    con.commit()
    upsert_query: str = '''INSERT INTO {} (channel_id, channel_name)
    VALUES('{}',"{}") ON CONFLICT(channel_id) DO NOTHING'''.format(SUB_TABLE, channel_id, name)
    cur.execute(upsert_query)
    con.commit()


def get_default_logo(providerid: str = 'default') -> wx.Bitmap:
    if providerid == 'SVT':
        return wx.Bitmap('{}/assets/SVT.png'.format(MYPATH))
    if providerid == 'YouTube':
        return wx.Bitmap('{}/assets/YouTube.png'.format(MYPATH))
    else:
        return wx.Bitmap('{}/assets/Default.png'.format(MYPATH))


def get_subscriptions(basepath: str = BASEPATH,
                      filename: str = DB_FILE_NAME) -> list[tuple[str, str]]:
    subscriptions = list()
    fullpath = path.join(basepath, filename)
    con = sqlite3.connect(fullpath)
    cur = con.cursor()
    select_query = '''SELECT * FROM {}'''.format(SUB_TABLE)
    cur.execute(select_query)
    for result in cur.fetchall():
        print(result)
        subscriptions.append(result)
    return subscriptions


def import_from_newpipe(filename) -> None:

    if path.isfile(filename):
        with open(filename, 'r') as subs:
            sub_data = json.loads(subs.read())

            for channel in sub_data['subscriptions']:
                if channel['service_id'] == 0:
                    channel_id = urlparse(channel['url']).path.split('/').pop()
                    add_subscription(channel_id, channel['name'])


def make_sized_button(parent_pnl: wx.Panel, bitmap_or_str: Union[wx.Bitmap,
                                                                 str],
                      text: str, callback: Callable) -> wx.BoxSizer:
    btn_sizer = wx.BoxSizer(wx.HORIZONTAL)
    if type(bitmap_or_str) == type(str):
        if bitmap_or_str.startswith('http'):  # type: ignore
            bitmap = make_bitmap_from_url(bitmap_or_str)  # type: ignore
        else:
            bitmap = wx.Bitmap(bitmap_or_str, wx.BITMAP_TYPE_ANY)
    else:
        bitmap = bitmap_or_str
    btn_style = wx.BORDER_NONE | wx.BU_AUTODRAW | wx.BU_EXACTFIT | wx.BU_NOTEXT
    btn_logo = wx.BitmapButton(parent_pnl, wx.ID_ANY, bitmap, style=btn_style)
    btn_logo.SetMinSize(SIZE)
    btn_logo.SetToolTip(text)
    btn_sizer.Add(btn_logo, 0, wx.BOTTOM | wx.EXPAND | wx.LEFT | wx.TOP, 1)

    btn_text = wx.Button(parent_pnl,
                         wx.ID_ANY,
                         text,
                         style=wx.BORDER_NONE | wx.BU_AUTODRAW)
    btn_text.SetMinSize(
        wx.Size(SCREEN_WIDTH - SIZE.GetWidth(), SIZE.GetHeight()))
    btn_text.SetToolTip(text)
    btn_sizer.Add(btn_text, 0, wx.BOTTOM | wx.RIGHT | wx.TOP | wx.EXPAND, 1)
    parent_pnl.Bind(wx.EVT_BUTTON, callback, btn_logo)
    parent_pnl.Bind(wx.EVT_BUTTON, callback, btn_text)

    return btn_sizer


def make_bitmap_from_url(logo_url: str, size: wx.Size = SIZE) -> wx.Bitmap:
    res = requests.get(logo_url)
    content = res.content
    content_bytes = io.BytesIO(content)
    image = wx.Image(content_bytes, type=wx.BITMAP_TYPE_ANY, index=-1)
    scale_factor = image.GetWidth() / SCREEN_WIDTH
    size.SetWidth(SCREEN_WIDTH)
    height = image.GetHeight()
    size.SetHeight(height / scale_factor)
    image.Rescale(size.GetWidth(), size.GetHeight())
    return wx.Bitmap(image)


def make_bitmap_from_file(path, size: wx.Size = SIZE) -> wx.Bitmap:
    image = wx.Image(path, type=wx.BITMAP_TYPE_ANY, index=-1)
    # scale_factor = image.GetWidth() / SCREEN_WIDTH
    # size.SetWidth(SCREEN_WIDTH)
    # height = image.GetHeight()
    # size.SetHeight(height/scale_factor)
    # image.Rescale(size.GetWidth(), size.GetHeight() )
    return wx.Bitmap(image)


def resolve_svt_channel(svt_id: str) -> dict:

    channels = {
        "ch-barnkanalen": {
            "name":
            "Barnkanalen",
            "thumbnail":
            make_bitmap_from_file('{}/assets/Barnkanalen.png'.format(MYPATH))
        },
        "ch-svt1": {
            "name": "SVT 1",
            "thumbnail":
            make_bitmap_from_file('{}/assets/SVT1.png'.format(MYPATH))
        },
        "ch-svt2": {
            "name": "SVT 2",
            "thumbnail":
            make_bitmap_from_file('{}/assets/SVT2.png'.format(MYPATH))
        },
        "ch-svt24": {
            "name":
            "SVT 24",
            "thumbnail":
            make_bitmap_from_file('{}/assets/SVT24.png'.format(MYPATH))
        },
        "ch-kunskapskanalen": {
            "name":
            "Kunskapskanalen",
            "thumbnail":
            make_bitmap_from_file(
                '{}/assets/Kunskapskanalen.png'.format(MYPATH))
        },
        "feed": {
            "name": "Senaste program",
            "thumbnail":
            make_bitmap_from_file('{}/assets/SVT.png'.format(MYPATH))
        },
    }

    return channels[svt_id]