Update app.py

app.py

@@ -1,5 +1,128 @@
 from fastapi import FastAPI
 app  =FastAPI()
 @app.get("/")
+import sqlite3
+from hashlib import sha256
+import streamlit as st
+from openai import OpenAI
+client = OpenAI()
+# Step 1: Initialize the SQLite database
+def init_db():
+    conn = sqlite3.connect('user_data.db')  # Connect to SQLite database
+    c = conn.cursor()
+    
+    # Create the users table if it doesn't exist
+    c.execute('''CREATE TABLE IF NOT EXISTS users (
+                 id INTEGER PRIMARY KEY AUTOINCREMENT, 
+                 username TEXT NOT NULL, 
+                 password TEXT NOT NULL)''')
+    
+    # Create a table for storing user inputs
+    c.execute('''CREATE TABLE IF NOT EXISTS user_inputs (
+                 id INTEGER PRIMARY KEY AUTOINCREMENT, 
+                 username TEXT NOT NULL, 
+                 input1 TEXT NOT NULL, 
+                 input2 TEXT NOT NULL, 
+                 input3 TEXT NOT NULL)''')
+    
+    conn.commit()
+    return conn, c
+
+# Step 2: Hash passwords for secure storage
+def hash_password(password):
+    return sha256(password.encode()).hexdigest()
+
+# Step 3: Verify if the username and password match any record in the database
+def verify_login(username, password, c):
+    hashed_pw = hash_password(password)
+    c.execute('SELECT * FROM users WHERE username=? AND password=?', (username, hashed_pw))
+    return c.fetchone()
+
+# Step 4: Create a new user (for initial setup)
+def create_user(username, password, conn, c):
+    hashed_pw = hash_password(password)
+    c.execute('INSERT INTO users (username, password) VALUES (?, ?)', (username, hashed_pw))
+    conn.commit()
+
+# Step 5: Insert the user inputs into the database
+def insert_user_inputs(username, input1, input2, input3, conn, c):
+    c.execute('INSERT INTO user_inputs (username, input1, input2, input3) VALUES (?, ?, ?, ?)', 
+              (username, input1, input2, input3))
+    conn.commit()
+def generate(input1,input2,input3):
+    prompt = f"Using these three inputs: '{input1}' and '{input2}' and {input3}, first input we received from customner 2nd input we have to send also consider input 3 for morte accurate message write a mail which is more empathy based, formalized for business use, should address the issue well, positive tonality and dont make any assumption just write the mail"
+    completion = client.chat.completions.create(
+    model="gpt-4o-mini",
+    messages=[
+        {"role": "system", "content": "You are a helpful assistant who writes mail formally, and grammatically corrected."},
+        {
+            "role": "user",
+            "content": prompt
+        }
+            ]
+                )
+    return completion.choices[0].message.content   
+# Initialize the database and cursor
+conn, c = init_db()
+
+# Create a session state to store login status
+if 'logged_in' not in st.session_state:
+    st.session_state['logged_in'] = False
+if 'username' not in st.session_state:
+    st.session_state['username'] = None
+
+# Streamlit UI: Login Page
+if not st.session_state['logged_in']:
+    st.title("User Login")
+
+    # Username and password inputs
+    username = st.text_input("Username")
+    password = st.text_input("Password", type="password")
+
+    # Login button
+    if st.button("Login"):
+        if username and password:
+            user = verify_login(username, password, c)
+            if user:
+                st.session_state['logged_in'] = True
+                st.session_state['username'] = username
+                st.success(f"Welcome, {username}! You have successfully logged in.")
+            else:
+                st.error("Invalid username or password. Please try again.")
+        else:
+            st.error("Please enter both username and password.")
+else:
+    # When the user is logged in, display the new section
+    st.title(f"Welcome {st.session_state['username']}! Writing AI at your assitance")
+    
+    # Input fields
+    input1 = st.text_input("Mail received from Customer")
+    input2 = st.text_input("Mail EARC send to customer")
+    input3 = st.text_input("Any input")
+    
+    # Submit inputs button
+    if st.button("Submit Inputs"):
+        if input1 and input2 and input3:
+            insert_user_inputs(st.session_state['username'], input1, input2, input3, conn, c)
+            output = generate(input1, input2, input3)
+            
+            st.success(output)
+        else:
+            st.error("Please fill in all the fields.")
+
+# (Optional) Add a section for creating new users, useful for testing
+st.subheader("Create a new account (for testing)")
+new_username = st.text_input("New Username")
+new_password = st.text_input("New Password", type="password")
+
+if st.button("Create Account"):
+    if new_username and new_password:
+        create_user(new_username, new_password, conn, c)
+        st.success(f"Account created successfully for {new_username}!")
+    else:
+        st.error("Please enter both a username and a password.")
+
+# Close the database connection when done
+conn.close()
 def greet_json():
     return {"hello":"World"}