main.py

# -*- coding: utf-8 -*-
"""
Unblock for Windows
- Multi-file/folder selection with removal
- Pause/Resume / Cancel
- Drag & Drop
- Progress and status logging
- Windows 11 Mica blur
- Modern theme-aware UI
- Tray icon with click-to-restore
- Embedded SVG for title bar icon
"""
import sys
import subprocess
import winreg
import os
import ctypes
from PyQt6.QtWidgets import (
    QApplication, QWidget, QPushButton, QVBoxLayout, QHBoxLayout,
    QFileDialog, QLabel, QTextEdit, QListWidget, QListWidgetItem,
    QProgressBar, QSystemTrayIcon, QMenu, QMessageBox
)
from PyQt6.QtCore import QThread, pyqtSignal, Qt, QPropertyAnimation, QByteArray
from PyQt6.QtGui import QIcon, QPixmap, QPainter, QFont, QAction
from PyQt6.QtSvg import QSvgRenderer

# ----------------------------
# Global Variables
# ----------------------------
APP_NAME = "Unblock for Windows"


# ----------------------------
# Detect Windows Theme
# ----------------------------
def is_dark_mode():
    try:
        registry = winreg.OpenKey(
            winreg.HKEY_CURRENT_USER,
            r"Software\Microsoft\Windows\CurrentVersion\Themes\Personalize"
        )
        value, _ = winreg.QueryValueEx(registry, "AppsUseLightTheme")
        return value == 0  # Dark mode
    except _:
        return False

# ----------------------------
# Windows 11 Mica Blur
# ----------------------------
def apply_mica(window_id):
    try:
        DWMWA_SYSTEMBACKDROP_TYPE = 38
        DWMSBT_MAINWINDOW = 2
        ctypes.windll.dwmapi.DwmSetWindowAttribute(
            ctypes.wintypes.HWND(window_id),
            ctypes.c_uint(DWMWA_SYSTEMBACKDROP_TYPE),
            ctypes.byref(ctypes.c_int(DWMSBT_MAINWINDOW)),
            ctypes.sizeof(ctypes.c_int)
        )
    except Exception as e:
        print("Mica not supported:", e)

# ----------------------------
# Worker Thread with Pause/Cancel
# ----------------------------
class UnblockWorker(QThread):
    progress_signal = pyqtSignal(int)
    output_signal = pyqtSignal(str)
    finished_signal = pyqtSignal()
    error_signal = pyqtSignal(str)

    def __init__(self, paths):
        super().__init__()
        self.paths = paths
        self._pause = False
        self._cancel = False

    def pause(self):
        self._pause = True

    def resume(self):
        self._pause = False

    def cancel(self):
        self._cancel = True

    def run(self):
        files_to_unblock = []

        for path in self.paths:
            if self._cancel:
                self.output_signal.emit("❌ Operation cancelled.")
                self.finished_signal.emit()
                return
            if os.path.isfile(path):
                files_to_unblock.append(path)
            elif os.path.isdir(path):
                for root, _, filenames in os.walk(path):
                    for f in filenames:
                        files_to_unblock.append(os.path.join(root, f))

        total = len(files_to_unblock)
        if total == 0:
            self.output_signal.emit("No files to unblock.")
            self.finished_signal.emit()
            return

        for i, file in enumerate(files_to_unblock):
            while self._pause:
                self.msleep(200)
            if self._cancel:
                self.output_signal.emit("❌ Operation cancelled.")
                self.finished_signal.emit()
                return

            try:
                subprocess.run(
                    ["powershell", "-NoProfile", "-Command", f"Unblock-File -LiteralPath '{file}'"],
                    stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL
                )
                self.output_signal.emit(f"✅ Processed: {file}")
            except Exception as e:
                self.error_signal.emit(f"❌ Error: {file} -> {e}")

            percent = int((i + 1) / total * 100)
            self.progress_signal.emit(percent)

        self.output_signal.emit("🎉 Completed all files!")
        self.finished_signal.emit()

# ----------------------------
# Main App
# ----------------------------
class UnblockApp(QWidget):
    def __init__(self):
        super().__init__()
        self.setWindowTitle(APP_NAME)

        # Set window icon from embedded SVG
        self.setWindowIcon(self.get_embedded_icon())

        # Allow .ICO for the EXE itself if bundled with PyInstaller
        # Example: pyinstaller --onefile --icon=resources/favicon.ico main.py

        self.setAcceptDrops(True)
        self.resize(850, 600)

        # Apply Mica
        try:
            hwnd = int(self.winId())
            apply_mica(hwnd)
        except _:
            pass

        self.selected_paths = []

        layout = QVBoxLayout()
        layout.setSpacing(10)

        # Title
        title = QLabel("Unblock Downloaded Files")
        title.setFont(QFont("Segoe UI", 20))
        layout.addWidget(title)

        # Instructions
        instructions = QLabel(
            "Drag & drop files/folders here OR use the buttons below.\n"
            "Right-click any item to remove it.\n"
            "Use Pause/Resume/Cancel buttons for long sessions."
        )
        instructions.setStyleSheet("color: gray;")
        layout.addWidget(instructions)

        # Selected files/folders list
        self.list_widget = QListWidget()
        self.list_widget.setContextMenuPolicy(Qt.ContextMenuPolicy.CustomContextMenu)
        self.list_widget.customContextMenuRequested.connect(self.show_context_menu)
        layout.addWidget(self.list_widget)

        # Buttons row
        btn_row = QHBoxLayout()
        self.file_button = QPushButton("Select Files")
        self.file_button.clicked.connect(self.select_files)
        btn_row.addWidget(self.file_button)

        self.folder_button = QPushButton("Select Folders")
        self.folder_button.clicked.connect(self.select_folders)
        btn_row.addWidget(self.folder_button)

        self.unblock_button = QPushButton("Start Unblock")
        self.unblock_button.setEnabled(False)
        self.unblock_button.clicked.connect(self.start_unblock)
        btn_row.addWidget(self.unblock_button)

        self.pause_button = QPushButton("Pause")
        self.pause_button.setEnabled(False)
        self.pause_button.clicked.connect(self.pause_resume)
        btn_row.addWidget(self.pause_button)

        self.cancel_button = QPushButton("Cancel")
        self.cancel_button.setEnabled(False)
        self.cancel_button.clicked.connect(self.cancel)
        btn_row.addWidget(self.cancel_button)

        layout.addLayout(btn_row)

        # Progress bar
        self.progress = QProgressBar()
        layout.addWidget(self.progress)

        # Status log
        self.output = QTextEdit()
        self.output.setReadOnly(True)
        layout.addWidget(self.output)

        self.setLayout(layout)

        self.worker = None
        self.paused = False

        self.setup_tray()
        self.apply_theme()
        self.fade_in()

    # ----------------------------
    # Embedded SVG Icon
    # ----------------------------
    def get_embedded_icon(self):
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   svg:companyname=APP_NAME
   svg:companytagline=""
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   id="svg3"
   sodipodi:docname="logo-small.svg"
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   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
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   xmlns="http://www.w3.org/2000/svg"
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     inkscape:deskcolor="#d1d1d1"
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  <g
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     stroke-linecap="butt"
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     stroke-dasharray="none"
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"""  # Keep your full SVG here

        renderer = QSvgRenderer(QByteArray(svg_data.encode("utf-8")))
        pixmap = QPixmap(128, 128)
        pixmap.fill(Qt.GlobalColor.transparent)

        painter = QPainter(pixmap)
        renderer.render(painter)
        painter.end()

        return QIcon(pixmap)

    # ----------------------------
    # Handle close button
    # ----------------------------
    def closeEvent(self, event):
        if self.tray.isVisible():
            self.hide()
            self.tray.showMessage(
                APP_NAME,
                "Application minimized to tray. Click the tray icon to restore.",
                QSystemTrayIcon.MessageIcon.Information,
                3000
            )
            event.ignore()
        else:
            if self.worker and self.worker.isRunning():
                self.worker.cancel()
            event.accept()

    # ----------------------------
    # Drag & Drop
    # ----------------------------
    def dragEnterEvent(self, event):
        if event.mimeData().hasUrls():
            event.acceptProposedAction()

    def dropEvent(self, event):
        for url in event.mimeData().urls():
            path = url.toLocalFile()
            if path not in self.selected_paths:
                self.selected_paths.append(path)
        self.update_list()
        self.unblock_button.setEnabled(bool(self.selected_paths))

    # ----------------------------
    # File/Folder Selection
    # ----------------------------
    def select_files(self):
        files, _ = QFileDialog.getOpenFileNames(self, "Select Files", "", "All Files (*)")
        for f in files:
            if f not in self.selected_paths:
                self.selected_paths.append(f)
        self.update_list()
        self.unblock_button.setEnabled(bool(self.selected_paths))

    def select_folders(self):
        folder = QFileDialog.getExistingDirectory(self, "Select Folder")
        if folder and folder not in self.selected_paths:
            self.selected_paths.append(folder)
        self.update_list()
        self.unblock_button.setEnabled(bool(self.selected_paths))

    # ----------------------------
    # Update List
    # ----------------------------
    def update_list(self):
        self.list_widget.clear()
        for path in self.selected_paths:
            item = QListWidgetItem(path)
            self.list_widget.addItem(item)

    # ----------------------------
    # Context menu to remove items
    # ----------------------------
    def show_context_menu(self, pos):
        item = self.list_widget.itemAt(pos)
        if item:
            menu = QMenu()
            remove_action = QAction("Remove", self)
            remove_action.triggered.connect(lambda: self.remove_item(item))
            menu.addAction(remove_action)
            menu.exec(self.list_widget.mapToGlobal(pos))

    def remove_item(self, item):
        path = item.text()
        if path in self.selected_paths:
            self.selected_paths.remove(path)
        self.update_list()
        self.unblock_button.setEnabled(bool(self.selected_paths))

    # ----------------------------
    # Pause / Resume / Cancel
    # ----------------------------
    def pause_resume(self):
        if self.worker and self.worker.isRunning():
            if not self.paused:
                self.worker.pause()
                self.paused = True
                self.pause_button.setText("Resume")
                self.output.append("⏸ Paused...")
            else:
                self.worker.resume()
                self.paused = False
                self.pause_button.setText("Pause")
                self.output.append("▶ Resumed...")

    def cancel(self):
        if self.worker and self.worker.isRunning():
            reply = QMessageBox.question(
                self, "Cancel",
                "Are you sure you want to cancel?",
                QMessageBox.StandardButton.Yes | QMessageBox.StandardButton.No
            )
            if reply == QMessageBox.StandardButton.Yes:
                self.worker.cancel()
                self.unblock_button.setEnabled(True)
                self.pause_button.setEnabled(False)
                self.cancel_button.setEnabled(False)

    # ----------------------------
    # Start Unblock
    # ----------------------------
    def start_unblock(self):
        if not self.selected_paths:
            return
        self.progress.setValue(0)
        self.output.clear()
        self.unblock_button.setEnabled(False)
        self.pause_button.setEnabled(True)
        self.cancel_button.setEnabled(True)
        self.worker = UnblockWorker(self.selected_paths)
        self.worker.progress_signal.connect(self.progress.setValue)
        self.worker.output_signal.connect(self.output.append)
        self.worker.error_signal.connect(self.output.append)
        self.worker.finished_signal.connect(self.finish_unblock)
        self.worker.start()

    def finish_unblock(self):
        self.unblock_button.setEnabled(True)
        self.pause_button.setEnabled(False)
        self.cancel_button.setEnabled(False)
        self.paused = False
        self.pause_button.setText("Pause")
        self.tray.showMessage("Unblock for Windows", "✅ Finished successfully")

    # ----------------------------
    # Fade Animation
    # ----------------------------
    def fade_in(self):
        self.setWindowOpacity(0)
        self.anim = QPropertyAnimation(self, b"windowOpacity")
        self.anim.setDuration(400)
        self.anim.setStartValue(0)
        self.anim.setEndValue(1)
        self.anim.start()

    # ----------------------------
    # System Tray with click-to-restore
    # ----------------------------
    def setup_tray(self):
        self.tray = QSystemTrayIcon(QIcon(self.get_embedded_icon()), self)
        menu = QMenu()
        show_action = QAction("Show", self)
        show_action.triggered.connect(self.show)
        menu.addAction(show_action)
        quit_action = QAction("Exit", self)
        quit_action.triggered.connect(self.exit_app)
        menu.addAction(quit_action)
        self.tray.setContextMenu(menu)
        self.tray.activated.connect(self.on_tray_activated)
        self.tray.show()

    def on_tray_activated(self, reason):
        if reason == QSystemTrayIcon.ActivationReason.Trigger:
            self.show()
            self.raise_()
            self.activateWindow()

    def exit_app(self):
        if self.worker and self.worker.isRunning():
            self.worker.cancel()
        QApplication.quit()

    # ----------------------------
    # Theme Styling
    # ----------------------------
    def apply_theme(self):
        dark = is_dark_mode()
        if dark:
            self.setStyleSheet("""
                QWidget { background-color: #1e1e1e; color: white; font-family: Segoe UI; }
                QPushButton { background-color: #2d2d2d; border-radius: 10px; padding: 8px; }
                QPushButton:hover { background-color: #3a3a3a; }
                QProgressBar { border-radius: 6px; text-align: center; }
                QProgressBar::chunk { background-color: #0078d7; border-radius: 6px; }
                QListWidget { background-color: #252526; border: 1px solid #3a3a3a; border-radius: 6px; }
            """)
        else:
            self.setStyleSheet("""
                QWidget { background-color: #f3f3f3; font-family: Segoe UI; }
                QPushButton { border-radius: 10px; padding: 8px; }
                QProgressBar::chunk { background-color: #0078d7; }
                QListWidget { background-color: #ffffff; border: 1px solid #d0d0d0; border-radius: 6px; }
            """)

# ----------------------------
# Run App
# ----------------------------
if __name__ == "__main__":
    app = QApplication(sys.argv)
    app.setQuitOnLastWindowClosed(False)
    window = UnblockApp()
    window.show()
    sys.exit(app.exec())