# app.py
import streamlit as st
import pandas as pd
import os

# بيانات المستخدمين (مؤقتًا ثابتة)
users = {
    "user1": {"password": "1234", "role": "user"},
    "admin1": {"password": "admin", "role": "admin"}
}

CSV_FILE = "complaints.csv"

# إنشاء الملف لو مش موجود
if not os.path.exists(CSV_FILE):
    df = pd.DataFrame(columns=["id", "username", "complaint", "status", "response"])
    df.to_csv(CSV_FILE, index=False)

# تحميل البيانات
def load_data():
    return pd.read_csv(CSV_FILE)

# حفظ البيانات
def save_data(df):
    df.to_csv(CSV_FILE, index=False)

# تسجيل الدخول
def login():
    st.sidebar.title("🔐 Login")
    username = st.sidebar.text_input("Username")
    password = st.sidebar.text_input("Password", type="password")
    if st.sidebar.button("Login"):
        if username in users and users[username]["password"] == password:
            return username, users[username]["role"]
        else:
            st.sidebar.error("❌ Invalid credentials")
            return None, None
    return None, None

# واجهة المستخدم العادي
def user_interface(username):
    st.title("📨 Submit a Complaint")
    complaint = st.text_area("Your Complaint")
    if st.button("Submit"):
        df = load_data()
        new_id = len(df) + 1
        new_row = pd.DataFrame([[new_id, username, complaint, "Open", ""]], columns=df.columns)
        df = pd.concat([df, new_row], ignore_index=True)
        save_data(df)
        st.success("✅ Complaint submitted successfully!")

    st.subheader("📋 Your Complaints")
    df = load_data()
    user_df = df[df["username"] == username]
    st.table(user_df)

# واجهة المسؤول
def admin_interface():
    st.title("🛠️ Admin Dashboard")
    df = load_data()

    for i, row in df.iterrows():
        st.markdown(f"**Complaint #{row['id']} by {row['username']}**")
        st.markdown(f"- Complaint: {row['complaint']}")
        st.markdown(f"- Status: `{row['status']}`")
        response = st.text_input(f"Response for Complaint #{row['id']}", value=row['response'], key=f"res_{row['id']}")
        status = st.selectbox("Update Status", ["Open", "In Progress", "Closed"], index=["Open", "In Progress", "Closed"].index(row['status']), key=f"stat_{row['id']}")
        if st.button(f"Update #{row['id']}"):
            df.at[i, "response"] = response
            df.at[i, "status"] = status
            save_data(df)
            st.success(f"✅ Complaint #{row['id']} updated.")

# التطبيق الرئيسي
def main():
    username, role = login()
    if username:
        if role == "user":
            user_interface(username)
        elif role == "admin":
            admin_interface()

if __name__ == "__main__":
    main()