Create app.py

app.py

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+import streamlit as st
+from streamlit.components.v1 import html
+from pathlib import Path
+import json
+import time
+from datetime import datetime
+import re
+import pandas as pd
+import yaml
+from io import StringIO
+import openpyxl
+import csv
+import base64
+
+# Supported file types and their handlers
+FILE_TYPES = {
+    "md": "📝 Markdown",
+    "txt": "📄 Text",
+    "json": "🔧 JSON",
+    "csv": "📊 CSV",
+    "xlsx": "📗 Excel",
+    "yaml": "⚙️ YAML",
+    "xml": "🔗 XML"
+}
+
+# Enhanced state initialization
+if 'file_data' not in st.session_state:
+    st.session_state.file_data = {}
+if 'file_types' not in st.session_state:
+    st.session_state.file_types = {}
+if 'md_outline' not in st.session_state:
+    st.session_state.md_outline = {}
+if 'rendered_content' not in st.session_state:
+    st.session_state.rendered_content = {}
+if 'file_history' not in st.session_state:
+    st.session_state.file_history = []
+if 'md_versions' not in st.session_state:
+    st.session_state.md_versions = {}
+if 'md_files_history' not in st.session_state:
+    st.session_state.md_files_history = []
+if 'combined_markdown' not in st.session_state:
+    st.session_state.combined_markdown = ""
+
+def delete_all_md_files():
+    """Delete all markdown files except README.md"""
+    files_to_remove = [
+        f for f in st.session_state.md_files_history 
+        if f["filename"] != "README.md"
+    ]
+    for file in files_to_remove:
+        filename = file["filename"]
+        if filename in st.session_state.file_data:
+            del st.session_state.file_data[filename]
+        if filename in st.session_state.file_types:
+            del st.session_state.file_types[filename]
+        if filename in st.session_state.md_outline:
+            del st.session_state.md_outline[filename]
+        if filename in st.session_state.rendered_content:
+            del st.session_state.rendered_content[filename]
+        if filename in st.session_state.md_versions:
+            del st.session_state.md_versions[filename]
+    
+    st.session_state.md_files_history = [
+        f for f in st.session_state.md_files_history 
+        if f["filename"] == "README.md"
+    ]
+    st.session_state.combined_markdown = ""
+    return len(files_to_remove)
+
+def get_binary_file_downloader_html(bin_file, file_label='File'):
+    """Generate a link allowing the data in a given file to be downloaded"""
+    b64 = base64.b64encode(bin_file.encode()).decode()
+    return f'<a href="data:text/plain;base64,{b64}" download="{file_label}">📥 Download {file_label}</a>'
+
+def encode_content(content):
+    """Encode content to base64"""
+    return base64.b64encode(content.encode()).decode()
+
+def decode_content(encoded_content):
+    """Decode content from base64"""
+    return base64.b64decode(encoded_content.encode()).decode()
+
+def combine_markdown_files():
+    """Combine all markdown files into a single document"""
+    combined = []
+    for md_file in sorted(st.session_state.md_files_history, key=lambda x: x["filename"]):
+        content = decode_content(md_file["content"])
+        combined.append(f"# {md_file['filename']}\n\n{content}\n\n---\n\n")
+    return "".join(combined)
+
+def add_to_history(filename, content, action="uploaded"):
+    """Add a file action to the history with timestamp"""
+    timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
+    encoded_content = encode_content(content)
+    history_entry = {
+        "timestamp": timestamp,
+        "filename": filename,
+        "action": action,
+        "content": encoded_content
+    }
+    st.session_state.file_history.insert(0, history_entry)
+    
+    # Store version if it's a markdown file
+    if filename.endswith('.md'):
+        if filename not in st.session_state.md_versions:
+            st.session_state.md_versions[filename] = []
+        st.session_state.md_versions[filename].append({
+            "timestamp": timestamp,
+            "content": encoded_content,
+            "action": action
+        })
+        
+        # Add to MD files history if not already present
+        if filename not in [f["filename"] for f in st.session_state.md_files_history]:
+            st.session_state.md_files_history.append({
+                "filename": filename,
+                "timestamp": timestamp,
+                "content": encoded_content
+            })
+        
+        # Update combined markdown
+        st.session_state.combined_markdown = combine_markdown_files()
+
+def show_sidebar_history():
+    """Display markdown file history in the sidebar"""
+    st.sidebar.markdown("### 📚 Markdown Files History")
+    
+    # Add Delete All button
+    if st.sidebar.button("🗑️ Delete All (except README.md)"):
+        deleted_count = delete_all_md_files()
+        st.sidebar.success(f"Deleted {deleted_count} markdown files")
+        st.experimental_rerun()
+    
+    for md_file in st.session_state.md_files_history:
+        col1, col2, col3 = st.sidebar.columns([2, 1, 1])
+        
+        with col1:
+            st.markdown(f"**{md_file['filename']}**")
+        
+        with col2:
+            if st.button("📂 Open", key=f"open_{md_file['filename']}"):
+                content = decode_content(md_file['content'])
+                st.session_state.file_data[md_file['filename']] = content
+                st.session_state.file_types[md_file['filename']] = "md"
+                st.session_state.md_outline[md_file['filename']] = parse_markdown_outline(content)
+                st.experimental_rerun()
+        
+        with col3:
+            download_link = get_binary_file_downloader_html(
+                decode_content(md_file['content']), 
+                md_file['filename']
+            )
+            st.markdown(download_link, unsafe_allow_html=True)
+
+def show_book_view():
+    """Display all markdown files in a book-like format"""
+    if st.session_state.combined_markdown:
+        st.markdown("## 📖 Book View")
+        st.markdown(st.session_state.combined_markdown)
+
+# [Previous functions remain the same: show_file_history, show_markdown_versions, 
+# parse_markdown_outline, create_markdown_tabs, read_file_content, save_file_content]
+
+def main():
+    st.title("📚✨ Super Smart File Handler with Markdown Magic! ✨📚")
+    
+    # Show markdown history in sidebar
+    show_sidebar_history()
+    
+    # Add tabs for different upload methods
+    upload_tab, book_tab = st.tabs(["📤 File Upload", "📖 Book View"])
+    
+    with upload_tab:
+        col1, col2 = st.columns(2)
+        
+        with col1:
+            uploaded_file = st.file_uploader(
+                "📤 Upload single file", 
+                type=list(FILE_TYPES.keys()),
+                help="Supports: " + ", ".join([f"{v} (.{k})" for k, v in FILE_TYPES.items()])
+            )
+        
+        with col2:
+            uploaded_files = st.file_uploader(
+                "📚 Upload multiple files",
+                type=list(FILE_TYPES.keys()),
+                accept_multiple_files=True,
+                help="Upload multiple files to view as a book"
+            )
+        
+        # Process single file upload
+        if uploaded_file:
+            content, file_type = read_file_content(uploaded_file)
+            if content is not None:
+                st.session_state.file_data[uploaded_file.name] = content
+                st.session_state.file_types[uploaded_file.name] = file_type
+                st.success(f"🎉 Loaded {FILE_TYPES.get(file_type, '📄')} file: {uploaded_file.name}")
+        
+        # Process multiple file upload
+        if uploaded_files:
+            for uploaded_file in uploaded_files:
+                content, file_type = read_file_content(uploaded_file)
+                if content is not None:
+                    st.session_state.file_data[uploaded_file.name] = content
+                    st.session_state.file_types[uploaded_file.name] = file_type
+            st.success(f"🎉 Loaded {len(uploaded_files)} files")
+        
+        # Show file history
+        show_file_history()
+        
+        # Show individual files
+        if st.session_state.file_data:
+            st.subheader("📂 Your Files")
+            for filename, content in st.session_state.file_data.items():
+                file_type = st.session_state.file_types[filename]
+                with st.expander(f"{FILE_TYPES.get(file_type, '📄')} {filename}"):
+                    if file_type == "md":
+                        content = create_markdown_tabs(content, filename)
+                    else:
+                        edited_content = st.text_area(
+                            "Content",
+                            content,
+                            height=300,
+                            key=f"edit_{filename}"
+                        )
+                        if edited_content != content:
+                            st.session_state.file_data[filename] = edited_content
+                            content = edited_content
+                    
+                    if st.button(f"💾 Save {filename}"):
+                        if save_file_content(content, filename, file_type):
+                            st.success(f"✨ Saved {filename} successfully!")
+    
+    with book_tab:
+        show_book_view()
+
+if __name__ == "__main__":
+    main()