import streamlit as st
import os
from PIL import Image
import math

# Function to list files with given extensions
def list_files(folder_path, extensions):
    files = [f for f in os.listdir(folder_path) if os.path.isfile(os.path.join(folder_path, f))]
    return [f for f in files if f.split('.')[-1] in extensions]

# Set up Streamlit app
st.title("Display Images and Corresponding Text Files")

# Define the folder path
folder_path = "/home/caimera-prod/kohya_new_dataset"

# List of allowed image and text extensions
image_extensions = ['jpg', 'jpeg', 'png']
text_extensions = ['txt']

# Get the list of image and text files
files = list_files(folder_path, image_extensions + text_extensions)

# Filter files into images and texts
images = [f for f in files if f.split('.')[-1] in image_extensions]
texts = [f for f in files if f.split('.')[-1] in text_extensions]

# Create a dictionary to map image files to their corresponding text files
file_map = {}
for image in images:
    base_name = os.path.splitext(image)[0]
    corresponding_text = base_name + '.txt'
    if corresponding_text in texts:
        file_map[image] = corresponding_text

# Pagination settings
items_per_page = 5
total_items = len(file_map)
total_pages = math.ceil(total_items / items_per_page)
page = st.sidebar.slider('Page', 1, total_pages, 1)

# Calculate the start and end indices for the current page
start_idx = (page - 1) * items_per_page
end_idx = start_idx + items_per_page

# Display images and text files side by side with editing capability
for image_file, text_file in list(file_map.items())[start_idx:end_idx]:
    col1, col2 = st.columns(2)

    with col1:
        st.image(os.path.join(folder_path, image_file), caption=image_file, use_column_width=True)

    with col2:
        text_path = os.path.join(folder_path, text_file)
        with open(text_path, 'r') as file:
            text_content = file.read()

        # Text area for editing text content
        updated_text = st.text_area(text_file, text_content, height=300)

        # Save the edited content back to the file if changes were made
        if st.button(f'Save {text_file}'):
            with open(text_path, 'w') as file:
                file.write(updated_text)
            st.success(f"Changes to {text_file} saved successfully.")