#!/usr/bin/env python3
"""
Script to resize the SmoothSchedule logo to 120x120 pixels.
Maintains aspect ratio and centers on a transparent canvas.
Usage: python resize_logo.py
"""

from PIL import Image
from pathlib import Path

# Paths
PROJECT_ROOT = Path(__file__).parent
SOURCE_LOGO = PROJECT_ROOT / "frontend" / "src" / "assets" / "smooth_schedule_icon.png"
OUTPUT_LOGO = PROJECT_ROOT / "smooth_schedule_logo_120x120.png"

def resize_logo(source: Path, output: Path, size: tuple = (120, 120)):
    """Resize logo to fit within specified dimensions, maintaining aspect ratio."""
    if not source.exists():
        print(f"Error: Source logo not found at {source}")
        return False

    try:
        with Image.open(source) as img:
            # Convert to RGBA if needed (preserves transparency)
            if img.mode != 'RGBA':
                img = img.convert('RGBA')

            original_size = img.size

            # Calculate scaling to fit within the target size while maintaining aspect ratio
            width_ratio = size[0] / img.width
            height_ratio = size[1] / img.height
            scale = min(width_ratio, height_ratio)

            new_width = int(img.width * scale)
            new_height = int(img.height * scale)

            # Resize maintaining aspect ratio
            resized = img.resize((new_width, new_height), Image.Resampling.LANCZOS)

            # Create a transparent canvas of the target size
            canvas = Image.new('RGBA', size, (0, 0, 0, 0))

            # Center the resized image on the canvas
            x_offset = (size[0] - new_width) // 2
            y_offset = (size[1] - new_height) // 2
            canvas.paste(resized, (x_offset, y_offset))

            # Save the final image
            canvas.save(output, 'PNG', optimize=True)

            print(f"Successfully resized logo:")
            print(f"  Source: {source}")
            print(f"  Output: {output}")
            print(f"  Original size: {original_size}")
            print(f"  Scaled size: {new_width}x{new_height}")
            print(f"  Canvas size: {size}")
            return True

    except Exception as e:
        print(f"Error resizing logo: {e}")
        return False

if __name__ == "__main__":
    resize_logo(SOURCE_LOGO, OUTPUT_LOGO)