# Soundboard Engine - customizable soundboard
# Copyright (C) 2026  Vidhu Kant Sharma <vidhukant@vidhukant.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

import random

from AboutWindow import AboutWindow
from PySide6.QtWidgets import (
    QMainWindow,
    QStackedWidget,
    QVBoxLayout,
    QWidget,
)

from AudioPlayer import AudioPlayer, PlayerStatus
from CategoryCardWidget import CategoryCardWidget
from CategoryListWidget import CategoryListWidget
from SoundListItemWidget import QHBoxLayout, QLabel
from Soundboard import Soundboard
from SoundsListWidget import SoundsListWidget
from StatusbarWidget import StatusbarWidget

APP_VERSION = "0.1.0"

class SoundboardEngineWindow(QMainWindow):
    def __init__(self, soundboard: Soundboard, app_version):
        super().__init__()
        self.soundboard = soundboard
        self.app_version = app_version

        self.about_window = None

        self.audio_player = AudioPlayer(self)
        self.audio_player.status_updated.connect(self.player_state_changed)

        self.init_ui()

    def init_ui(self):
        self.setWindowTitle(self.soundboard.soundboard_name)
        self.setMinimumSize(450, 480)
        self.resize(450, 480)

        central_widget = QWidget()
        self.setCentralWidget(central_widget)
        self.main_layout = QVBoxLayout(central_widget)
        self.main_layout.setContentsMargins(0, 0, 0, 0)

        # add status bar
        self.statusbar_widget = StatusbarWidget()
        self.statusbar_widget.play_requested.connect(self.audio_player.play_sound)
        self.statusbar_widget.stop_requested.connect(self.audio_player.stop_sound)
        self.main_layout.addWidget(self.statusbar_widget)

        # stacked screen thingy
        self.screen_stack = QStackedWidget()
        self.main_layout.addWidget(self.screen_stack, stretch=1)

        # add category grid
        self.category_grid = CategoryListWidget()
        self.category_grid.title_label.setText(self.soundboard.soundboard_name)
        self.category_grid.play_random.connect(self.play_random)
        self.screen_stack.addWidget(self.category_grid)

        # add sounds list
        self.sounds_list = SoundsListWidget()
        self.sounds_list.back_requested.connect(self.show_home)
        self.sounds_list.play_requested.connect(self.audio_player.play_sound)
        self.screen_stack.addWidget(self.sounds_list)

        self.footer_layout = QHBoxLayout()
        self.footer_layout.setContentsMargins(0, 0, 0, 10)
        self.footer_layout.addStretch()

        self.footer_label = QLabel(f"Soundboard Engine {self.app_version} | <a href='about'>About</a>")
        self.footer_label.linkActivated.connect(self.toggle_about_page)
        self.footer_layout.addWidget(self.footer_label)

        self.footer_layout.addStretch()
        self.main_layout.addLayout(self.footer_layout)

        self.populate_categories()

    def populate_categories(self):
        cards = []

        for category in self.soundboard.categories:
            card = CategoryCardWidget(category)
            card.list_clicked.connect(self.show_sounds_list)
            card.play_requested.connect(self.audio_player.play_sound)
            cards.append(card)

        self.category_grid.set_cards(cards)

    def show_sounds_list(self, category):
        self.sounds_list.load_category(category)
        self.screen_stack.setCurrentIndex(1)

    def show_home(self):
        self.screen_stack.setCurrentIndex(0)

    def player_state_changed(self, status: PlayerStatus):
        self.statusbar_widget.set_status(status)

    def play_random(self):
        _category = random.choice(self.soundboard.categories)
        _sound = random.choice(_category.sounds)
        self.audio_player.play_sound(_sound)

    def toggle_about_page(self):
        if self.about_window is None:
            self.about_window = AboutWindow(self.soundboard, self.app_version)
            self.about_window.show()
        else:
            self.about_window.close()
            self.about_window = None