# pip install Pillow

import os
from PIL import Image

def resize_proportional(root_path):
    extensions = ('.jpg', '.jpeg', '.png')
    
    for subdir, dirs, files in os.walk(root_path):
        for filename in files:
            # Nur Bilder verarbeiten und bereits generierte Varianten ignorieren
            if filename.lower().endswith(extensions) and "_100" not in filename:
                file_path = os.path.join(subdir, filename)
                
                try:
                    with Image.open(file_path) as img:
                        # Farbmodus für PNG sicherstellen
                        img = img.convert("RGBA") if img.mode in ("RGBA", "P") else img.convert("RGB")
                        original_width, original_height = img.size
                        base_name = os.path.splitext(filename)[0]

                        # --- Variante 1: Breite = 100 ---
                        w_target = 100
                        # Berechnung der proportionalen Höhe
                        h_proportional = int((w_target / original_width) * original_height)
                        img_w = img.resize((w_target, h_proportional), Image.Resampling.LANCZOS)
                        img_w.save(os.path.join(subdir, f"{base_name}_w100.png"), "PNG")

                        # --- Variante 2: Höhe = 100 ---
                        h_target = 100
                        # Berechnung der proportionalen Breite
                        w_proportional = int((h_target / original_height) * original_width)
                        img_h = img.resize((w_proportional, h_target), Image.Resampling.LANCZOS)
                        img_h.save(os.path.join(subdir, f"{base_name}_h100.png"), "PNG")

                        print(f"Erledigt: {filename} (w100 & h100)")
                        
                except Exception as e:
                    print(f"Fehler bei {file_path}: {e}")

# Start im aktuellen Verzeichnis
resize_proportional('.')


import os
from PIL import Image

def resize_images_recursive(root_path):
    target_size = (100, 100)
    extensions = ('.jpg', '.jpeg', '.png')
    
    # os.walk durchsucht den Ordner und alle Unterordner
    for subdir, dirs, files in os.walk(root_path):
        for filename in files:
            if filename.lower().endswith(extensions):
                # Überspringe Dateien, die bereits das Suffix haben (verhindert Doppelte)
                if "_100.png" in filename:
                    continue
                    
                file_path = os.path.join(subdir, filename)
                
                try:
                    with Image.open(file_path) as img:
                        # Modus für PNG vorbereiten
                        if img.mode in ("RGBA", "P"):
                            img = img.convert("RGBA")
                        else:
                            img = img.convert("RGB")
                        
                        # Verkleinern
                        img_resized = img.resize(target_size, Image.Resampling.LANCZOS)
                        
                        # Neuen Dateinamen mit Suffix im gleichen Verzeichnis erstellen
                        base_name = os.path.splitext(filename)[0]
                        new_filename = f"{base_name}_100.png"
                        output_path = os.path.join(subdir, new_filename)
                        
                        img_resized.save(output_path, "PNG")
                        print(f"Gespeichert: {output_path}")
                except Exception as e:
                    print(f"Fehler bei {file_path}: {e}")

# Starte die Suche im aktuellen Verzeichnis
resize_images_recursive('.')