import streamlit as st
import sqlite3
from datetime import datetime, timedelta
import os
import json
import requests

# -----------------------------
# CONFIG
# -----------------------------
st.set_page_config(
    page_title="SmartDay.AI",
    page_icon="🌸",
    layout="wide",
    initial_sidebar_state="expanded"
)

# Theme Colors
PRIMARY_COLOR = "#FF6F61"  # Coral
BG_COLOR = "#FFFFFF"       # White

# Database setup
DB_FILE = "smartday_ai.db"

def init_db():
    conn = sqlite3.connect(DB_FILE)
    c = conn.cursor()
    c.execute('''CREATE TABLE IF NOT EXISTS users
                 (username TEXT PRIMARY KEY, password TEXT)''')
    c.execute('''CREATE TABLE IF NOT EXISTS journal
                 (username TEXT, date TEXT, entry TEXT)''')
    c.execute('''CREATE TABLE IF NOT EXISTS planner
                 (username TEXT, date TEXT, task TEXT, status TEXT)''')
    conn.commit()
    conn.close()

init_db()

# -----------------------------
# AUTHENTICATION
# -----------------------------
def register_user(username, password):
    conn = sqlite3.connect(DB_FILE)
    c = conn.cursor()
    try:
        c.execute("INSERT INTO users VALUES (?,?)", (username, password))
        conn.commit()
        return True
    except:
        return False
    finally:
        conn.close()

def login_user(username, password):
    conn = sqlite3.connect(DB_FILE)
    c = conn.cursor()
    c.execute("SELECT * FROM users WHERE username=? AND password=?", (username, password))
    result = c.fetchone()
    conn.close()
    return result is not None

# -----------------------------
# GROQ AI INTEGRATION
# -----------------------------
def groq_chat(prompt):
    """Call Groq API - key saved in Hugging Face Secrets"""
    api_key = os.environ.get("GROQ_API_KEY")
    if not api_key:
        return "⚠️ No API key found. Please set GROQ_API_KEY in Secrets."
    
    url = "https://api.groq.com/openai/v1/chat/completions"
    headers = {"Authorization": f"Bearer {api_key}",_