#Wallpaper Manager

import sys
from PyQt5.QtWidgets import (QApplication, QMainWindow, QWidget, 
                             QVBoxLayout, QPushButton, QFileDialog, 
                             QLabel, QMessageBox)
from PyQt5.QtGui import QPixmap
import os
import platform
# Import platform-specific modules if needed (e.g., ctypes for Windows)
import ctypes # Uncomment if specifically targeting Windows API

class WallpaperManagerApp(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("Local Wallpaper Manager")
        self.setGeometry(100, 100, 1920, 1080)

        # Central Widget and Layout
        central_widget = QWidget()
        self.setCentralWidget(central_widget)
        layout = QVBoxLayout()

        # Widgets
        self.select_button = QPushButton("Select Wallpaper Image")
        self.select_button.clicked.connect(self.select_image)
        
        self.status_label = QLabel("Ready to select image...")

        # Add widgets to layout
        layout.addWidget(self.select_button)
        layout.addWidget(self.status_label)
        central_widget.setLayout(layout)

    def select_image(self):
        # Open a file dialog to select an image file
        # Filter for common image types
        file_path, _ = QFileDialog.getOpenFileName(
            self, 
            "Select Wallpaper", 
            "", 
            "Image Files (*.jpg *.jpeg *.png *.bmp)"
        )
        
        if file_path:
            self.status_label.setText(f"Selected: {file_path}")
            # Step 3 will call the set_wallpaper function here
            self.set_wallpaper(file_path)

    def set_wallpaper(self, image_path):
        # This function will contain the platform-specific logic
        self.status_label.setText(f"Attempting to set wallpaper...")
        
        system_name = platform.system().lower()
        
        try:
            if system_name == 'windows':
                # Windows logic (requires ctypes, usually SystemParametersInfoW)
                # You'll need to uncomment `import ctypes` above for this to work
                SPI_SETDESKWALLPAPER = 20
                path = os.path.abspath(image_path)
                ctypes.windll.user32.SystemParametersInfoW(SPI_SETDESKWALLPAPER, 0, path, 3)
                # For this initial guide, we'll simplify and show the concept
                pass 
                
            elif system_name == 'darwin': # macOS
                # macOS logic (often uses osascript)
                script = f"osascript -e 'tell application \"Finder\" to set desktop picture to POSIX file \"{os.path.abspath(image_path)}\"'"
                os.system(script)
                pass
                
            elif system_name == 'linux':
                # Linux/Gnome logic (often uses gsettings)
                command = f"gsettings set org.gnome.desktop.background picture-uri file://{os.path.abspath(image_path)}"
                os.system(command)
                pass
                
            else:
                # Fallback for unsupported/unknown systems
                QMessageBox.warning(self, "Warning", 
                    f"Wallpaper changing is not yet implemented for {platform.system()} or failed."
                )
                self.status_label.setText(f"Selection successful, but wallpaper not set.")
                return

            self.status_label.setText(f"Wallpaper set successfully: {os.path.basename(image_path)}")

        except Exception as e:
            QMessageBox.critical(self, "Error", 
                f"Failed to set wallpaper. Error: {e}"
            )
            self.status_label.setText(f"Failed to set wallpaper.")


def main():
    app = QApplication(sys.argv)
    window = WallpaperManagerApp()
    window.show()
    sys.exit(app.exec_())

if __name__ == '__main__':
    main()