import cv2, numpy as np
import sys
import os
import json
from pathlib import Path

from Tbd.helper import default_profile, CameraObject
from UI.SetupPageWidget import SetupPage
from UI.HomePageWidget import HomeWindow
from UI.UILogger import UILogger
from Tbd.TrackingController import TrackingController

from PySide6.QtCore import Qt, QTimer
from PySide6.QtGui import QImage, QPixmap
from PySide6.QtWidgets import (
    QApplication,
    QMainWindow,
    QStackedWidget,
    QMessageBox,
    QPlainTextEdit
)
from PySide6.QtWidgets import QLineEdit
from PySide6.QtGui import QIntValidator
from PySide6.QtWidgets import QWidget, QLabel, QVBoxLayout, QPushButton, QHBoxLayout, QSizePolicy
from typing import List

CONFIG_PATH = Path("config/profile_default.json")



class MainWindow(QMainWindow):
    """
    Main control window: left sidebar + right content area.
    """
    cameraList = []

    def __init__(self):
        super().__init__()

        self.P_mats = {}

        self.setWindowTitle("Gaming Table Control") 
        self.resize(1200, 1200)

        # Central root widget
        root = QWidget()
        self.setCentralWidget(root)

        self.main_layout = QVBoxLayout(root)
        self.main_interaction_layout = QHBoxLayout()

        # Create Logger
        self.console = QPlainTextEdit()
        self.logger = UILogger(self.console)

        # ---------- Sidebar ----------
        self.sidebar = QVBoxLayout()

        self.btn_home = QPushButton("Home")
        self.btn_start = QPushButton("Start Game")
        self.btn_stop = QPushButton("Stop Game")
        self.btn_setup = QPushButton("Setup Cameras")
        self.btn_exit = QPushButton("Exit")

        for btn in [self.btn_home, self.btn_start, self.btn_stop, self.btn_setup, self.btn_exit]:
            btn.setMinimumHeight(40)
            self.sidebar.addWidget(btn)

        self.sidebar.addStretch(1)  # push buttons to top
        
        # ---------- Content area (stack) ----------
        self.stack = QStackedWidget()

        # Home page
        home_page = QWidget()
        self.homeWidget = HomeWindow(
            cameraList=self.cameraList,
            on_cameraList_changed=self.on_cameraList_changed,
            P_mats=self.P_mats,
            logger=self.logger
        )

        home_layout = QVBoxLayout(home_page)
        home_label = QLabel("Welcome to the Gaming Table Control")
        home_label.setAlignment(Qt.AlignCenter)

        home_layout.addWidget(home_label)
        home_layout.addWidget(self.homeWidget)

        # Setup page
        self.setup_page = SetupPage(
            cameraList=self.cameraList,
            on_cameraList_changed=self.on_cameraList_changed,
            logger=self.logger
        )

        # Options page (placeholder)
        stop_page = QWidget()
        stop_layout = QVBoxLayout(stop_page)
        stop_label = QLabel("The game was stopped")
        stop_label.setAlignment(Qt.AlignCenter)
        stop_layout.addWidget(stop_label)

        # Add pages to stack
        self.page_home_index = self.stack.addWidget(home_page)
        self.page_setup_index = self.stack.addWidget(self.setup_page)
        self.page_stop_index = self.stack.addWidget(stop_page)

        # ---------- Assemble layout ----------
        self.main_interaction_layout.addLayout(self.sidebar)      # left side
        self.main_interaction_layout.addWidget(self.stack, 1)  # right side grows

        self.main_layout.addLayout(self.main_interaction_layout)
        self.main_layout.addWidget(self.console)

        # ---------- Connections ----------
        self.btn_home.clicked.connect(self.show_home)
        self.btn_setup.clicked.connect(self.show_setup)
        self.btn_stop.clicked.connect(self.show_stop)
        self.btn_start.clicked.connect(self.start_game)
        self.btn_exit.clicked.connect(self.close)

        self.game_window = None
        self.tracking = None

    # --------------------
    def on_cameraList_changed(self):
        self.homeWidget.updateCameras()
        self.logger.log("Camera List changed")
        for camera in self.cameraList:
            self.logger.log(str(camera.index))


    def show_home(self):
        self.stack.setCurrentIndex(self.page_home_index)

    def show_setup(self):
        self.stack.setCurrentIndex(self.page_setup_index)

    def show_stop(self):
        self.stack.setCurrentIndex(self.page_stop_index)

        if(self.tracking) is not None:
            self.tracking.stop()

    def start_game(self):
        self.tracking = TrackingController(
            cameraList=self.cameraList,
            P_mats=self.P_mats,
            logger=self.logger,
            tick_ms=30
        )

        self.tracking.start()

def main():
    app = QApplication(sys.argv)
    win = MainWindow()
    win.show()
    sys.exit(app.exec())


if __name__ == "__main__":
    main()