import streamlit as st
import os
import csv
import time

uploaded_images = {'characters': {}, 'terrain': {}}

def get_image_path(img, name, image_type):
    file_path = f"data/uploadedImages/{image_type}/{name}/{img.name}"
    os.makedirs(os.path.dirname(file_path), exist_ok=True)
    with open(file_path, "wb") as img_file:
        img_file.write(img.getbuffer())
    return file_path

def update_csv_file(uploaded_file, name, image_type):
    csv_file_path = "Resources.csv"
    # read existing file contents
    file_contents = set()
    if os.path.exists(csv_file_path):
        with open(csv_file_path, mode='r') as csv_file:
            csv_reader = csv.reader(csv_file)
            for row in csv_reader:
                if row:
                    file_contents.add(tuple(row))
    # add new file content
    file_content = (name, uploaded_file.name, image_type)
    file_contents.add(file_content)
    # write updated file contents
    with open(csv_file_path, mode='w', newline='') as csv_file:
        csv_writer = csv.writer(csv_file)
        for row in file_contents:
            csv_writer.writerow(row)

def get_uploaded_files_info():
    csv_file_path = "Resources.csv"
    if os.path.exists(csv_file_path):
        with open(csv_file_path, mode='r') as csv_file:
            csv_reader = csv.reader(csv_file)
            files_info = []
            for row in csv_reader:
                if row:
                    files_info.append(row)
            return files_info
    else:
        return []

def display_images_from_csv():
    files_info = get_uploaded_files_info()
    for row in files_info:
        name, file_name, image_type = row
        # remove extension from file name
        file_name_without_extension = os.path.splitext(file_name)[0]
        if image_type == 'characters':
            img_path = f"data/uploadedImages/{image_type}/{name}/{file_name}"
            st.sidebar.image(img_path, width=100, caption=name)
        else:
            img_path = f"data/uploadedImages/{image_type}/{name}/{file_name}"
            st.image(img_path, width=100, caption=name)

def get_table_from_csv():
    csv_file_path = "Resources.csv"
    if os.path.exists(csv_file_path):
        with open(csv_file_path, mode='r') as csv_file:
            csv_reader = csv.reader(csv_file)
            table_rows = [row for row in csv_reader if row]
            # create markdown table from table rows
            table_md = "| Name | File Name | Image Type |\n| --- | --- | --- |\n"
            for row in table_rows:
                name, file_name, image_type = row
                # remove extension from file name
                file_name_without_extension = os.path.splitext(file_name)[0]
                table_md += f"| {name} | {file_name_without_extension} | {image_type} |\n"
            return table_md
    else:
        return ""

# show uploaded images and save them to file
image_type = st.selectbox('Choose image type:', options=['characters', 'terrain'])
name = st.text_input('Enter a name for the image:')
uploaded_files = st.file_uploader('Upload image(s)', type=['png', 'jpg'], accept_multiple_files=True)
for uploaded_file in uploaded_files:
    if uploaded_file is not None:
        # Get actual image file
        bytes_data = get_image_path(uploaded_file, name, image_type)
        uploaded_images[image_type].setdefault(name, [])
        uploaded_images[image_type][    name].append(bytes_data)
    st.image(bytes_data, use_column_width=True)
    update_csv_file(uploaded_file, name, image_type)

def display_characters():
    if uploaded_images['characters']:
        st.sidebar.write('**Characters**')
        for name, files in uploaded_images['characters'].items():
            for file in files:
                st.sidebar.image(file, width=100, caption=name)

def display_terrain():
    if uploaded_images['terrain']:
        st.write('**Terrain**')
        row = []
        for name, files in uploaded_images['terrain'].items():
            for file in files:
                row.append(file)
                if len(row) == 3:
                    st.image(row, width=100 * 3)
                    row = []
        if row:
            st.image(row, width=100 * len(row)) # Last row, if not complete

def display_uploaded_images():
    st.write("## Uploaded Images")
    if image_type == 'characters':
        display_characters()
    else:
        display_terrain()

    st.write("## Uploaded Images Table")
    # display markdown table from csv file
    table_md = get_table_from_csv()
    if table_md:
        st.markdown(table_md, unsafe_allow_html=True)
    else:
        st.write("No images uploaded yet.")

    while True:
        time.sleep(20)
        st.empty()
        display_images_from_csv()


# show uploaded images and save them to file
image_type = st.selectbox('Choose image type:', options=['characters', 'terrain'])
name = st.text_input('Enter a name for the image:')
uploaded_files = st.file_uploader(key="part2", 'Upload image(s)', type=['png', 'jpg'], accept_multiple_files=True)
for uploaded_file in uploaded_files:
    if uploaded_file is not None:
        # Get actual image file
        bytes_data = get_image_path(uploaded_file, name, image_type)
        uploaded_images[image_type].setdefault(name, [])
        uploaded_images[image_type][name].append(bytes_data)
        st.image(bytes_data, use_column_width=True)
        update_csv_file(uploaded_file, name, image_type)

display_uploaded_images()