import streamlit as st
import cv2
from PIL import Image
import numpy as np  # <-- Add this line
import io
import tempfile
import os
import pickle
import requests
from datetime import datetime
from googleapiclient.discovery import build
from googleapiclient.http import MediaFileUpload
from google.auth.transport.requests import Request
from simple_salesforce import Salesforce
import pytz

# === SALESFORCE SETUP ===
sf = Salesforce(
    username='suriraja822@agentforce.com',
    password='Sati@1010',
    security_token='B9nS0HEyBE7YmWllqXCyiOJpY',
    domain='login'
)

# === CONSTANTS ===
UPLOAD_FOLDER_ID = '1qkcR7nQTEtiMH9OFUv2bGxVn08E3dKjF'

def get_vacant_rooms():
    rooms = sf.query("SELECT Id, Name FROM Hotel_Room__c WHERE Room_Status__c = 'Vacant Clean'")
    return {room['Name']: room['Id'] for room in rooms['records']}

def upload_image_to_drive(image_np, filename):
    creds = None
    if os.path.exists("token.pickle"):
        with open("token.pickle", "rb") as token:
            creds = pickle.load(token)
    if not creds or not creds.valid:
        if creds and creds.expired and creds.refresh_token:
            creds.refresh(Request())
    service = build('drive', 'v3', credentials=creds)
    image = Image.fromarray(cv2.cvtColor(image_np, cv2.COLOR_BGR2RGB))
    buf = io.BytesIO()
    image.save(buf, format="JPEG")
    buf.seek(0)

    with tempfile.NamedTemporaryFile(delete=False, suffix=".jpg") as tmp:
        tmp.write(buf.read())
        tmp.flush()
        file_metadata = {'name': filename, 'parents': [UPLOAD_FOLDER_ID]}
        media = MediaFileUpload(tmp.name, mimetype='image/jpeg')
        uploaded_file = service.files().create(body=file_metadata, media_body=media, fields='id').execute()
        file_id = uploaded_file.get('id')
        os.remove(tmp.name)
        return f"https://drive.google.com/uc?id={file_id}"

def save_guest_to_sf(data):
    try:
        sf.Hotel_Guest__c.create(data)
        st.success("✅ Guest registered successfully.")
    except Exception as e:
        st.error(f"❌ Salesforce Guest Error: {e}")

def save_staff_to_sf(data):
    try:
        sf.Hotel_Staff__c.create(data)
        st.success("✅ Staff registered successfully.")
    except Exception as e:
        st.error(f"❌ Salesforce Staff Error: {e}")

st.title("🏨 Hotel Guest and Staff Registration")
tab1, tab2 = st.tabs(["👤 Guest", "👨‍💼 Staff"])

with tab1:
    st.header("Register a Guest")
    fname = st.text_input("First Name")
    lname = st.text_input("Last Name")
    email = st.text_input("Email")
    phone = st.text_input("Phone")
    id_number = st.text_input("ID Number")
    special_requests = st.text_area("Special Requests")
    emergency_contact = st.text_input("Emergency Contact")
    vacant_rooms = get_vacant_rooms()
    room_name = st.selectbox("Assign Room", list(vacant_rooms.keys()))
    capture = st.camera_input("Capture Guest Photo")

    if st.button("📝 Register Guest"):
        if capture:
            timestamp = datetime.now(pytz.timezone('Asia/Kolkata')).strftime("%Y%m%d%H%M%S")
            image = Image.open(capture)
            image_np = cv2.cvtColor(np.array(image), cv2.COLOR_RGB2BGR)
            file_name = f"G_{timestamp}.jpg"
            photo_url = upload_image_to_drive(image_np, file_name)

            guest_data = {
                'First_Name__c': fname,
                'Last_Name__c': lname,
                'Email__c': email,
                'Phone__c': phone,
                'ID_Number__c': id_number,
                'Special_Requests__c': special_requests,
                'Emergency_Contact__c': emergency_contact,
                'Room_Number__c': vacant_rooms[room_name],
                'Check_In_Date__c': datetime.utcnow().isoformat(),
                'Photo_Uploaded__c': True,
                 "Photo_URL__c":photo_url,
                'HF_Registered__c': True,
                'Guest_Status__c': 'Checked In'
            }
            save_guest_to_sf(guest_data)
        else:
            st.warning("📸 Please capture a photo before registering.")

with tab2:
    st.header("Register a Staff Member")
    fname = st.text_input("Staff First Name")
    lname = st.text_input("Staff Last Name")
    email = st.text_input("Staff Email")
    phone = st.text_input("Staff Phone")
    emp_number = st.text_input("Employee Number")
    department = st.text_input("Department")
    position = st.text_input("Position")
    shift = st.selectbox("Shift", ["Morning", "Evening", "Night"])
    status = st.selectbox("Status", ["Active", "Inactive"])
    access = st.selectbox("Access Level", ["Low", "Medium", "High"])
    badge = st.text_input("Badge Number")
    supervisor = st.text_input("Supervisor")
    hire_date = st.date_input("Hire Date")
    capture = st.camera_input("Capture Staff Photo")

    if st.button("📝 Register Staff"):
        if capture:
            timestamp = datetime.now(pytz.timezone('Asia/Kolkata')).strftime("%Y%m%d%H%M%S")
            image = Image.open(capture)
            image_np = cv2.cvtColor(np.array(image), cv2.COLOR_RGB2BGR)
            file_name = f"S_{timestamp}.jpg"
            photo_url = upload_image_to_drive(image_np, file_name)

            staff_data = {
                'First_Name__c': fname,
                'Last_Name__c': lname,
                'Email__c': email,
                'Phone__c': phone,
                'Employee_Number__c': emp_number,
                'Department__c': department,
                'Position__c': position,
                'Shift__c': shift,
                'Employment_Status__c': status,
                'Access_Level__c': 'Basic',
                'Badge_Number__c': badge,
                'Supervisor__c': supervisor,
                'Hire_Date__c': hire_date.isoformat(),
                    'Photo_Uploaded__c': True,
                'photo_url__c':photo_url,
                'HF_Registered__c': True
            }
            save_staff_to_sf(staff_data)
        else:
            st.warning("📸 Please capture a photo before registering.")