app.py

import os
import openai
import streamlit as st
import json

# Set OpenAI API key
openai.api_key = os.environ["OPENAI_API_KEY"]

# Set page config
st.set_page_config(page_title="JChat Real Estate Investing Chatbot", page_icon="🏘️", layout="wide",)

# Define path for saving chat history
CHAT_HISTORY_PATH = "chat_history.json"

# Define chat history object and counter
chat_history = []
counter = 0

# Load existing chat history if file exists
if os.path.exists(CHAT_HISTORY_PATH):
    use_chat_history = st.sidebar.checkbox("Use existing chat history?")
    if use_chat_history:
        with open(CHAT_HISTORY_PATH, "r") as f:
            chat_history = json.load(f)
else:
    st.sidebar.info("No chat history found.")

# Define chatbot function
def chatbot(input):
    global counter
    global chat_history

    # Append user input to chat history
    if input:
        chat_history.append({"role": "user", "content": input})

    # Get AI response from OpenAI API
    if len(chat_history) >= 2:
        prompt = f"{chat_history[-2]['content']}\nUser: {chat_history[-1]['content']}\nAI:"
    else:
        prompt = f"User: {chat_history[-1]['content']}\nAI:"
    response = openai.Completion.create(
        engine="text-davinci-002",
        prompt=prompt,
        max_tokens=100,
        n=1,
        stop=None,
        temperature=0.2,
    ).choices[0].text

    # Append AI response to chat history
    chat_history.append({"role": "assistant", "content": response})
    counter += 1

    # Save chat history to file
    with open(CHAT_HISTORY_PATH, "w") as f:
        json.dump(chat_history, f)

    # Check if it's time to prompt for donation
    if counter >= 3:
        st.experimental_rerun()
        st.write("Thank you for using our chatbot! If you find our service helpful, please consider making a donation to support us: <a href='https://www.paypal.me/exnav29' target='_blank'>Donate Now</a>", unsafe_allow_html=True)
        counter = 0

    return response

# Define main function
def main():
    if not os.path.isfile(CHAT_HISTORY_PATH):
        if st.button("Create chat history file"):
            with open(CHAT_HISTORY_PATH, "w") as f:
                f.write('')
                st.write("Chat history file created successfully!")
        else:
            st.warning("Without a chat history file, your chat history will not be saved.")

    st.sidebar.checkbox("Use existing chat history?", value=True)
    st.sidebar.subheader("Chat history:")
    for i in range(max(len(chat_history) - 3, 0), len(chat_history)):
        if chat_history[i]["role"] == "user":
            st.sidebar.text(f"User: {chat_history[i]['content']}")
        else:
            st.sidebar.text(f"AI: {chat_history[i]['content']}")

# Add custom CSS
st.markdown(
    """
    <style>
    body {
  background-color: #1c1c1c;
  color: #ffffff;
}

/* Header */
header {
  background-color: #000000;
  color: #ffffff;
  padding: 1rem;
  border-bottom: 1px solid #ffffff;
}

h1 {
  font-size: 2.5rem;
  font-weight: bold;
  color: #00ff7f;
  text-shadow: 2px 2px 0 #000000;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

/* Sidebar */
.sidebar {
  background-color: #2d2d2d;
  color: #ffffff;
  padding: 1rem;
}

.sidebar h2 {
  font-size: 1.5rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.sidebar p {
  margin-bottom: 1rem;
}

.sidebar ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar li {
  margin-bottom: 0.5rem;
}

.sidebar a {
  color: #ffffff;
  text-decoration: none;
  font-weight: bold;
}

/* Main content */
.main {
  background-color: #1c1c1c;
  color: #ffffff;
  padding: 1rem;
}

.main h2 {
  font-size: 1.5rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.main p {
  margin-bottom: 1rem;
}

.main a {
  color: #39ff14;
  text-decoration: none;
  font-weight: bold;
}

/* Buttons */
button {
  background-color: #39ff14;
  color: #000000;
  border: none;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
}

button:hover {
  background-color: #38ff13;
}

button:active {
  background-color: #37ff12;
}

button:focus {
  outline: none;
}

/* Form */
form label {
  display: block;
  font-size: 1rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

form input[type="text"],
form input[type="email"],
form input[type="password"],
form textarea {
  background-color: #2d2d2d;
  color: #ffffff;
  border: none;
  padding: 0.5rem;
  margin-bottom: 1rem;
  width: 100%;
  font-size: 1rem;
  font-weight: bold;
  letter-spacing: 0.1em;
}

form input[type="text"]:focus,
form input[type="email"]:focus,
form input[type="password"]:focus,
form textarea:focus {
  outline: none;
  box-shadow: 0 0 0 2px #39ff14;
}

.title {
  font-size: 48px;
  color: #39ff14;
  text-align: center;
  margin-top: 0;
  margin-bottom: 1rem;
  text-transform: uppercase;
}

form button[type="submit"] {
  background-color: #39ff14;
  color: #000000;
  border: none;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 

    </style>
    """,
    unsafe_allow_html=True,
)

# Add content to your app
st.title("JChat Real Estate Investing Chatbot")
st.write("Ask anything you want about investing in real estate")
input_text = st.text_input("Ask your question")
if input_text:
    output_text = chatbot(input_text)
    st.write(output_text)

if __name__ == '__main__':
    main()