app.py

import streamlit as st
from chatbot_utils import AmharicChatbot

st.set_page_config(page_title="ቅመም በአማርኛ የጤና አማካሪ", layout="centered")

@st.cache_resource
def load_bot():
    return AmharicChatbot("amharic_srh_qa.csv")

bot = load_bot()

# Inject CSS for chat style
st.markdown("""
       <style>
        .chat-container {
            width: 100%;
            max-width: 600px;
            margin: 0 auto;
            background-color: #ffffff;
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.1);
            font-family: Arial, sans-serif;
        }
        .chat-box {
            height: 350px;
            overflow-y: auto;
            border: 1px solid #ddd;
            padding: 10px;
            background-color: #f9f9f9;
            margin-bottom: 10px;
            border-radius: 5px;
        }
        .message {
            margin: 10px 0;
            padding: 10px;
            border-radius: 5px;
            max-width: 70%;
            word-wrap: break-word;
            color: #000000; /* ensures text is visible */
        }
        .user-message {
            background-color: #e1f5fe;
            color: #000000; /* dark text */
            align-self: flex-end;
            margin-left: auto;
        }
        .bot-message {
            background-color: #f1f1f1;
            color: #000000; /* dark text */
            align-self: flex-start;
            margin-right: auto;
        }

        /* Optional: Dark mode support */
        @media (prefers-color-scheme: dark) {
            .chat-container {
                background-color: #1e1e1e;
                color: #ffffff;
            }
            .chat-box {
                background-color: #2a2a2a;
                border: 1px solid #444;
            }
            .message {
                color: #ffffff;
            }
            .user-message {
                background-color: #1565c0;
                color: #ffffff;
            }
            .bot-message {
                background-color: #333333;
                color: #ffffff;
            }
        }
    </style>
""", unsafe_allow_html=True)

st.markdown("## 🤖ቅመም በአማርኛ የጤና አማካሪ", unsafe_allow_html=True)
st.markdown("ስለ ወሊድና የአባላዘር በሽታ ጥያቄ አሎት? እባክዎ ያቀርቡ።", unsafe_allow_html=True)

# Chat container and message display
#st.markdown('<div class="chat-container">', unsafe_allow_html=True)
#st.markdown('<div class="chat-box">', unsafe_allow_html=True)

if "messages" not in st.session_state:
    st.session_state.messages = []

for msg in st.session_state.messages:
    css_class = "user-message" if msg["sender"] == "user" else "bot-message"
    st.markdown(f'<div class="message {css_class}">{msg["text"]}</div>', unsafe_allow_html=True)

st.markdown('</div>', unsafe_allow_html=True)  # Close chat-box
st.markdown('</div>', unsafe_allow_html=True)  # Close chat-container

# Form with clear_on_submit and direct input capture
with st.form(key="chat_form", clear_on_submit=True):
    user_input = st.text_input("💬 ጥያቄዎን ያስገቡ:")
    submit = st.form_submit_button("መልስ አውጣ")

    if submit:
        if user_input.strip() == "":
            st.warning("እባክዎ ጥያቄ ያስገቡ።")
        else:
            # Append user input
            st.session_state.messages.append({"sender": "user", "text": user_input})

            # Generate response
            response = bot.get_answer(user_input)
            if response == "__OUT_OF_SCOPE__":
                response = "ይቅርታ፣ ይህንን ጥያቄ ማስተዋል አልቻልኩም ከእኔ መረጃ ውጪ ነው። እባክዎ በሌላ መንገድ ይሞክሩ።"

            # Append bot response
            st.session_state.messages.append({"sender": "bot", "text": response})