from core.utils.config.settings import save_settings
from core.utils.data.state import state
from core.utils.logging.logs import consoleLog
from core.interface.utils.tabhelper import general_tab
from core.interface.utils.tabhelper import paths_tab
from core.interface.utils.tabhelper import network_tab
from core.interface.utils.svghelper import svg_icon
from PySide6 import QtWidgets
from PySide6.QtCore import Qt, QSize
from PySide6.QtWidgets import (
    QLineEdit, 
    QPushButton, 
    QWidget, 
    QVBoxLayout, 
    QDialog, 
    QLabel, 
    QHBoxLayout,
    QSpinBox,
    QCheckBox,
    QFileDialog,
    QComboBox,
    QTabWidget,
)
import platform

SVG_FOLDER = '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M2 6c0-1.1.9-2 2-2h5l2 2h7c1.1 0 2 .9 2 2v10c0 1.1-.9 2-2 2H4c-1.1 0-2-.9-2-2V6z" fill="{color}"/></svg>'


def settings_dialog(self):

        consoleLog("Settings dialog opened")
        dialog = QDialog(self)
        dialog.setWindowTitle("Settings")
        dialog.setFixedSize(700, 450)

        dialog.setLayout(QVBoxLayout())

        if state.window_transparency and platform.system() != "Windows" and dialog:
            dialog.setAttribute(Qt.WidgetAttribute.WA_TranslucentBackground)

        def close_settings():
            dialog.reject()

        update_checkbox_container = QWidget()
        update_checkbox_layout = QHBoxLayout()

        # ignore updates checkbox

        if platform.system() == "Windows":
            update_checkbox = QCheckBox()
            update_checkbox_container.setLayout(update_checkbox_layout)
            update_checkbox_layout.addWidget(QLabel("Ignore Updates: "))
            update_checkbox_layout.addStretch()
            update_checkbox.setChecked(state.ignore_updates)
            update_checkbox.toggled.connect(lambda checked: setattr(state, 'ignore_updates', checked))
            update_checkbox_layout.addWidget(update_checkbox)

        # auto-resume downloads checkbox

        autoresume_container = QWidget()
        autoresume_layout = QHBoxLayout()

        autoresume_checkbox = QCheckBox()
        autoresume_container.setLayout(autoresume_layout)
        autoresume_layout.addWidget(QLabel("Auto-Resume Downloads: "))

        autoresume_layout.addStretch()
        autoresume_checkbox.setChecked(state.autoresume)
        autoresume_layout.addWidget(autoresume_checkbox)


        # transparent window checkbox
        transparent_window_container = QWidget()
        transparent_window_layout = QHBoxLayout()

        transparent_window_checkbox = QCheckBox()
        transparent_window_container.setLayout(transparent_window_layout)
        transparent_window_layout.addWidget(QLabel("Window Transparency (requires restart) (Linux/MacOS only): "))

        transparent_window_layout.addStretch()
        transparent_window_checkbox.setChecked(state.window_transparency)
        transparent_window_checkbox.toggled.connect(lambda checked: setattr(state, 'window_transparency', checked))
        transparent_window_layout.addWidget(transparent_window_checkbox)

        ##################
        # SERVER SETTING #
        ##################

        api_url_container = QWidget()
        api_url_layout = QHBoxLayout()

        api_url = QLineEdit()
        api_url_layout.addWidget(QLabel("API Server URL:"))
        api_url_layout.addWidget(api_url)
        api_url_container.setSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Fixed)
        api_url_container.setLayout(api_url_layout)
        api_url.setText(state.api_url)

        #################
        # DOWNLOAD PATH #
        #################

        download_path_container = QWidget()
        download_path_layout = QHBoxLayout()

        download_path = QLineEdit()
        download_path_layout.addWidget(QLabel("Download Path:"))
        download_path_layout.addWidget(download_path)
        download_path_container.setSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Fixed)
        download_path_container.setLayout(download_path_layout)
        download_path.setText(state.download_path)

        def browse_download_path():
            dir_path = QFileDialog.getExistingDirectory(dialog, "Select Download Directory", state.download_path)
            if dir_path:
                download_path.setText(dir_path)

        browse_button = QPushButton()
        browse_button.setFixedSize(36, 36)
        browse_button.setIconSize(QSize(24, 24))
        browse_button.setIcon(svg_icon(SVG_FOLDER, 24))
        browse_button.setCursor(Qt.CursorShape.PointingHandCursor)
        browse_button.setStyleSheet("""
            QPushButton {
                border: none;
                background: transparent;
                padding: 0px;
            }
        """)

        download_path_layout.addWidget(browse_button)
        browse_button.clicked.connect(browse_download_path)

        ###############
        # IMAGE PATH #
        ###############

        image_path_container = QWidget()
        image_path_layout = QHBoxLayout()

        image_path = QLineEdit()
        image_path_layout.addWidget(QLabel("Image Path (requires restart):"))
        image_path_layout.addWidget(image_path)
        image_path_container.setSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Fixed)
        image_path_container.setLayout(image_path_layout)
        image_path.setText(state.image_path)

        def browse_image_path():
            file_path = QFileDialog.getOpenFileName(dialog, "Select Image File", state.image_path, "Image Files (*.png *.jpg)")[0]
            if file_path:
                image_path.setText(file_path)

        browse_button = QPushButton()
        browse_button.setFixedSize(36, 36)
        browse_button.setIconSize(QSize(24, 24))
        browse_button.setIcon(svg_icon(SVG_FOLDER, 24))
        browse_button.setCursor(Qt.CursorShape.PointingHandCursor)
        browse_button.setStyleSheet("""
            QPushButton {
                border: none;
                background: transparent;
                padding: 0px;
            }
        """)
        image_path_layout.addWidget(browse_button)
        browse_button.clicked.connect(browse_image_path)

        ##################
        # SPEED LIMITING #
        ##################

        down_speed_limit_container = QWidget()
        down_speed_limit_layout = QHBoxLayout()

        down_speed_limit_layout.addWidget(QLabel("Max Download Speed (KiB, 0 for unlimited): "))
        down_speed_limit = QSpinBox()
        down_speed_limit.setMinimum(0)
        down_speed_limit.setMaximum(10000000)
        down_speed_limit.setValue(state.down_speed_limit)
        down_speed_limit_container.setLayout(down_speed_limit_layout)
        down_speed_limit_layout.addWidget(down_speed_limit)
        down_speed_limit.setFixedWidth(180)
        down_speed_limit.setFixedHeight(30)

        up_speed_limit_container = QWidget()
        up_speed_limit_layout = QHBoxLayout()

        up_speed_limit_layout.addWidget(QLabel("Max Upload Speed (KiB, 0 for unlimited): "))
        up_speed_limit = QSpinBox()
        up_speed_limit.setMinimum(0)
        up_speed_limit.setMaximum(10000000)
        up_speed_limit.setValue(state.up_speed_limit)
        up_speed_limit_container.setLayout(up_speed_limit_layout)
        up_speed_limit_layout.addWidget(up_speed_limit)
        up_speed_limit.setFixedWidth(180)
        up_speed_limit.setFixedHeight(30)

        ######################
        # CONNECTION CONFIGS #
        ######################

        max_connections_container = QWidget()
        max_connections_layout = QHBoxLayout()

        max_connections_layout.addWidget(QLabel("Max Connections: "))
        max_connections = QSpinBox()
        max_connections.setMinimum(0)
        max_connections.setMaximum(10000000)
        max_connections.setValue(state.max_connections)
        max_connections_container.setLayout(max_connections_layout)
        max_connections_layout.addWidget(max_connections)
        max_connections.setFixedWidth(180)
        max_connections.setFixedHeight(30)

        ####################
        # DOWNLOAD CONFIGS #
        ####################

        max_downloads_container = QWidget()
        max_downloads_layout = QHBoxLayout()

        max_downloads_layout.addWidget(QLabel("Max Downloads: "))
        max_downloads = QSpinBox()
        max_downloads.setMinimum(0)
        max_downloads.setMaximum(10000000)
        max_downloads.setValue(state.max_downloads)
        max_downloads_container.setLayout(max_downloads_layout)
        max_downloads_layout.addWidget(max_downloads)
        max_downloads.setFixedWidth(180)
        max_downloads.setFixedHeight(30)

        #####################
        # INTERFACE BINDING #
        #####################

        interface_container = QWidget()
        interface_layout = QHBoxLayout()

        interface_label = QLabel("Network Interface:")
        interface_layout.addWidget(interface_label)
        interface_select = QComboBox()
        interface_select.addItems(["None"] + state.interfaces)

        target = state.bound_interface if state.bound_interface else "None"

        index = interface_select.findText(target)
        if index >= 0:
            interface_select.setCurrentIndex(index)
        else:
            interface_select.setCurrentIndex(0)

        interface_select.setFixedWidth(180)
        interface_select.setFixedHeight(30)
        interface_layout.addWidget(interface_select)
        interface_container.setLayout(interface_layout)


        ###############
        # SAVE/CANCEL #
        ###############

        layout = QHBoxLayout()

        save_btn = QPushButton("Save")
        cancel_btn = QPushButton("Cancel")
        save_btn.clicked.connect(lambda: save_settings(
            close_settings, 
            api_url.text(), 
            download_path.text(), 
            down_speed_limit.value(), 
            up_speed_limit.value(), 
            image_path.text(), 
            autoresume_checkbox.isChecked(), 
            max_connections.value(), 
            max_downloads.value(), 
            interface_select.currentText()))

        cancel_btn.clicked.connect(dialog.reject)
        layout.addWidget(cancel_btn)
        layout.addWidget(save_btn)

        self.tabs = QTabWidget()
        self.tab1 = general_tab("General", autoresume_container, update_checkbox_container, transparent_window_container, self.tabs)
        self.tab2 = paths_tab("Paths", download_path_container, image_path_container, self.tabs)
        self.tab3 = network_tab("Network", interface_container, max_connections_container, max_downloads_container, up_speed_limit_container, down_speed_limit_container, api_url_container, self.tabs)

        dialog.layout().addWidget(self.tabs)
        dialog.layout().addLayout(layout)

        dialog.exec()