#!/usr/bin/env python3
"""
Test script for full-screen image scaling functionality
"""
import tkinter as tk
from PIL import Image, ImageTk
import os

def test_scaling_modes():
    """Test different scaling modes for images"""
    
    def scale_image_to_screen(img, screen_width, screen_height, mode='fit'):
        """Test scaling function"""
        img_width, img_height = img.size
        
        if mode == 'stretch':
            return img.resize((screen_width, screen_height), Image.LANCZOS), (0, 0)
            
        elif mode == 'fill':
            screen_ratio = screen_width / screen_height
            img_ratio = img_width / img_height
            
            if img_ratio > screen_ratio:
                new_height = screen_height
                new_width = int(screen_height * img_ratio)
                x_offset = (screen_width - new_width) // 2
                y_offset = 0
            else:
                new_width = screen_width
                new_height = int(screen_width / img_ratio)
                x_offset = 0
                y_offset = (screen_height - new_height) // 2
            
            img_resized = img.resize((new_width, new_height), Image.LANCZOS)
            final_img = Image.new('RGB', (screen_width, screen_height), 'black')
            
            if new_width > screen_width:
                crop_x = (new_width - screen_width) // 2
                img_resized = img_resized.crop((crop_x, 0, crop_x + screen_width, new_height))
                x_offset = 0
            if new_height > screen_height:
                crop_y = (new_height - screen_height) // 2
                img_resized = img_resized.crop((0, crop_y, new_width, crop_y + screen_height))
                y_offset = 0
                
            final_img.paste(img_resized, (x_offset, y_offset))
            return final_img, (x_offset, y_offset)
            
        else:  # fit mode
            screen_ratio = screen_width / screen_height
            img_ratio = img_width / img_height
            
            if img_ratio > screen_ratio:
                new_width = screen_width
                new_height = int(screen_width / img_ratio)
            else:
                new_height = screen_height
                new_width = int(screen_height * img_ratio)
            
            img_resized = img.resize((new_width, new_height), Image.LANCZOS)
            final_img = Image.new('RGB', (screen_width, screen_height), 'black')
            x_offset = (screen_width - new_width) // 2
            y_offset = (screen_height - new_height) // 2
            final_img.paste(img_resized, (x_offset, y_offset))
            
            return final_img, (x_offset, y_offset)
    
    # Test image path
    test_image = "/home/pi/Desktop/signage-player/tkinter_app/src/static/resurse/1307306470-nature_wallpaper_hd_hd_nature_3-3828209637.jpg"
    
    if not os.path.exists(test_image):
        print(f"Test image not found: {test_image}")
        return
        
    try:
        # Load test image
        img = Image.open(test_image)
        original_size = img.size
        screen_width, screen_height = 800, 600
        
        print(f"Testing scaling modes for image: {original_size}")
        print(f"Target screen size: {screen_width}x{screen_height}")
        
        # Test each scaling mode
        modes = ['fit', 'fill', 'stretch']
        
        for mode in modes:
            final_img, offset = scale_image_to_screen(img, screen_width, screen_height, mode)
            print(f"{mode.upper()} mode: Final size: {final_img.size}, Offset: {offset}")
            
        print("✅ All scaling modes tested successfully!")
        
    except Exception as e:
        print(f"❌ Error testing scaling: {e}")

if __name__ == "__main__":
    test_scaling_modes()