# import uuid, os, base64

# from PIL import Image
# from werkzeug.utils import secure_filename
# from config import Config
# from werkzeug.utils import secure_filename
# # from config import ALLOWED_EXT, UPLOAD_FOLDER
# print("utils.py loaded")
# print("UPLOAD_FOLDER:", Config.UPLOAD_FOLDER)
# print("ALLOWED_EXTENSIONS:", Config.ALLOWED_EXTENSIONS)
# def allowed(filename):
#     return os.path.splitext(filename)[1].lower() in Config.ALLOWED_EXTENSIONS

# def save_upload(file):
#     ext = os.path.splitext(secure_filename(file.filename))[1].lower()
#     filename = uuid.uuid4().hex + ext
#     path = os.path.join(Config.UPLOAD_FOLDER, filename)
#     file.save(path)
#     return path

# # def to_base64(np_img):
# #     from PIL import Image
# #     import io
# #     pil_img = Image.fromarray(np.uint8(np_img))
# #     buffered = io.BytesIO()
# #     pil_img.save(buffered, format="PNG")
# #     return base64.b64encode(buffered.getvalue()).decode("utf-8")

# def to_base64(pil_img):
#     import io
#     import base64

#     buffered = io.BytesIO()
#     pil_img.save(buffered, format="PNG")

#     return base64.b64encode(buffered.getvalue()).decode("utf-8")

# # def allowed_file(filename):
# #     """Check if file extension is allowed"""
# #     return '.' in filename and \
# #            filename.rsplit('.', 1)[1].lower() in Config.ALLOWED_EXTENSIONS
# def allowed_file(filename):
#     print("🧾 Received filename:", filename)

#     if not filename or '.' not in filename:
#         print("❌ Invalid filename")
#         return False

#     ext = '.' + filename.rsplit('.', 1)[1].lower()

#     print("📎 Extracted extension:", ext)
#     print("✅ Allowed extensions:", Config.ALLOWED_EXTENSIONS)

#     if ext not in Config.ALLOWED_EXTENSIONS:
#         print("❌ Extension NOT allowed:", ext)
#         return False

#     print("✅ FILE TYPE OK")
#     return True

# def save_uploaded_file(file):
    
#     """Save uploaded file with secure filename"""
#     if file and allowed_file(file.filename):
#         # filename = secure_filename(file.filename)
#         filename = secure_filename(file.filename or "image.jpg")
#         # Add unique identifier to prevent overwriting
#         unique_filename = f"{uuid.uuid4().hex}_{filename}"
#         filepath = os.path.join(Config.UPLOAD_FOLDER, unique_filename)
#         file.save(filepath)
#         return filepath
#     return None

# def get_image_dimensions(image_path):
#     """Get image dimensions for display"""
#     try:
#         with Image.open(image_path) as img:
#             return img.size
#     except:
#         return (300, 300)  # Default dimensions




import uuid, os, base64

from PIL import Image
from werkzeug.utils import secure_filename
from config import Config
from werkzeug.utils import secure_filename
# from config import ALLOWED_EXT, UPLOAD_FOLDER
print("utils.py loaded")
print("UPLOAD_FOLDER:", Config.UPLOAD_FOLDER)
print("ALLOWED_EXTENSIONS:", Config.ALLOWED_EXTENSIONS)
def allowed(filename):
    return os.path.splitext(filename)[1].lower() in Config.ALLOWED_EXTENSIONS

def save_upload(file):
    ext = os.path.splitext(secure_filename(file.filename))[1].lower()
    filename = uuid.uuid4().hex + ext
    path = os.path.join(Config.UPLOAD_FOLDER, filename)
    file.save(path)
    return path

# def to_base64(np_img):
#     from PIL import Image
#     import io
#     pil_img = Image.fromarray(np.uint8(np_img))
#     buffered = io.BytesIO()
#     pil_img.save(buffered, format="PNG")
#     return base64.b64encode(buffered.getvalue()).decode("utf-8")

def to_base64(pil_img):
    import io
    import base64

    buffered = io.BytesIO()
    pil_img.save(buffered, format="PNG")

    return base64.b64encode(buffered.getvalue()).decode("utf-8")

# def allowed_file(filename):
#     """Check if file extension is allowed"""
#     return '.' in filename and \
#            filename.rsplit('.', 1)[1].lower() in Config.ALLOWED_EXTENSIONS
def allowed_file(filename):
    print("🧾 Received filename:", filename)

    if not filename or '.' not in filename:
        print("❌ Invalid filename")
        return False

    ext = '.' + filename.rsplit('.', 1)[1].lower()

    print("📎 Extracted extension:", ext)
    print("✅ Allowed extensions:", Config.ALLOWED_EXTENSIONS)

    if ext not in Config.ALLOWED_EXTENSIONS:
        print("❌ Extension NOT allowed:", ext)
        return False

    print("✅ FILE TYPE OK")
    return True

def save_uploaded_file(file):
    
    """Save uploaded file with secure filename"""
    if file and allowed_file(file.filename):
        # filename = secure_filename(file.filename)
        filename = secure_filename(file.filename or "image.jpg")
        # Add unique identifier to prevent overwriting
        unique_filename = f"{uuid.uuid4().hex}_{filename}"
        filepath = os.path.join(Config.UPLOAD_FOLDER, unique_filename)
        file.save(filepath)
        return filepath
    return None

def get_image_dimensions(image_path):
    """Get image dimensions for display"""
    try:
        with Image.open(image_path) as img:
            return img.size
    except:
        return (300, 300)  # Default dimensions