"""Find and replace in file and folder names

Replaces a character or piece of text in the names of all files and folders
inside a folder, including subfolders: replace "_" with "-", remove "copy", and so on.

Free script from LinearAndLoom Icons: https://linearandloomicons.netlify.app/scripts/
Provided as is. Renaming and zipping cannot be undone, so try it on a copy of your folder first.
"""
import os
from tkinter import Tk, filedialog

def batch_rename():
    # Hide the main Tkinter window
    root = Tk()
    root.withdraw()
    root.attributes('-topmost', True)  # Bring the dialog to the front

    # 1. Ask for the target folder
    print("Opening folder selection window...")
    target_folder = filedialog.askdirectory(title="Select Target Folder")
    
    if not target_folder:
        print("No folder selected. Exiting script.")
        return

    print(f"Selected Folder: {target_folder}\n")

    # 2. Get the strings to find and replace
    old_str = input("Enter the character/string to FIND: ")
    if not old_str:
        print("Search string cannot be empty. Exiting script.")
        return
        
    new_str = input("Enter the character/string to REPLACE WITH: ")

    print("\nStarting renaming process...\n")
    rename_count = 0

    # 3. Iterate over all files and folders (Bottom-Up)
    # topdown=False is critical so we rename files inside a folder 
    # before renaming the parent folder itself.
    for dirpath, dirnames, filenames in os.walk(target_folder, topdown=False):
        
        # Rename files first
        for filename in filenames:
            if old_str in filename:
                old_file_path = os.path.join(dirpath, filename)
                new_filename = filename.replace(old_str, new_str)
                new_file_path = os.path.join(dirpath, new_filename)

                # Never overwrite another file, and never leave a file without a name
                if not new_filename or os.path.exists(new_file_path):
                    print(f"[File] Skipped: {filename} ('{new_filename}' already exists or is empty)")
                    continue

                os.rename(old_file_path, new_file_path)
                print(f"[File] Renamed: {filename} -> {new_filename}")
                rename_count += 1

        # Rename folders next
        for dirname in dirnames:
            if old_str in dirname:
                old_dir_path = os.path.join(dirpath, dirname)
                new_dirname = dirname.replace(old_str, new_str)
                new_dir_path = os.path.join(dirpath, new_dirname)

                if not new_dirname or os.path.exists(new_dir_path):
                    print(f"[Folder] Skipped: {dirname} ('{new_dirname}' already exists or is empty)")
                    continue

                os.rename(old_dir_path, new_dir_path)
                print(f"[Folder] Renamed: {dirname} -> {new_dirname}")
                rename_count += 1

    print(f"\nDone! Successfully renamed {rename_count} item(s).")

if __name__ == "__main__":
    batch_rename()