// Dashboard.jsx - Updated version
import React, { useEffect, useLayoutEffect } from 'react'
import SideBar from './SideBar'
import { Outlet, useNavigate } from 'react-router-dom'
import { useDispatch, useSelector } from 'react-redux'
import { RootState } from '../../store/store'
import { UserState } from '../../store/slices/userSlice'
import Loader from './Loader'

import { clearTransaction, TRANSACTION_STATUS_ENUMS } from '../../store/slices/transactionSlice'
import { resetSelDoc } from '../../store/slices/selectedDocsSlice'
import { resetSelRecipient } from '../../store/slices/selectedRecipientsSlice'
import { hideLoader, showLoader } from '../../store/slices/loaderSlice'
import SignModal from '../modal/SignModal'

import confetti from 'canvas-confetti'
import { FaCheckCircle } from 'react-icons/fa'
import { IoClose } from 'react-icons/io5'
import CommonNav from '../CommonNav'

function Dashboard() {
    const [showSideBar, setShowSideBar] = React.useState(true)
    const [showConfetti, setShowConfetti] = React.useState(false)
    const [isMobile, setIsMobile] = React.useState(false)
    const navigate = useNavigate();
    const dispatch = useDispatch();

    const user: UserState = useSelector((state: RootState) => state.user);

    const globalLoader = useSelector((state: RootState) => state.loader)
    const globalModalIsOpen = useSelector((state: RootState) => state.modal.isOpen)

    const selectedDocuments = useSelector((state: RootState) => state.selectedDocuments)
    const documentSignType = useSelector((state: RootState) => state.selectedDocuments.signType)

    const transactionStatus = useSelector((state: RootState) => state.transaction.status)

    // Check if cookie already exists - Redirect to Dashboard
    useLayoutEffect(() => {
        if (transactionStatus === TRANSACTION_STATUS_ENUMS.TRANSACTION_SEND_SUCCESS || transactionStatus === TRANSACTION_STATUS_ENUMS.TRANSACTION_INITIATED || transactionStatus === TRANSACTION_STATUS_ENUMS.TRANSACTION_SEND_FAILURE) {
           
            dispatch(resetSelDoc())
            dispatch(resetSelRecipient())
            dispatch(clearTransaction())

            if (transactionStatus === TRANSACTION_STATUS_ENUMS.TRANSACTION_SEND_SUCCESS) {
                setShowConfetti(true)
            }

            return
        }
    }, [])

    useEffect(() => {
        if (transactionStatus === TRANSACTION_STATUS_ENUMS.TRANSACTION_SEND_SUCCESS || transactionStatus === TRANSACTION_STATUS_ENUMS.TRANSACTION_INITIATED) return;

        if (selectedDocuments === null || (Array.isArray(selectedDocuments) && !selectedDocuments.length)) {
            dispatch(resetSelDoc())
        }
        dispatch(showLoader("Loading ..."));

        if (documentSignType && transactionStatus === TRANSACTION_STATUS_ENUMS.TRANSACTION_NOT_INITIATED) {
            if (documentSignType === 'self-sign') {
                setTimeout(() => {
                    navigate('/process-step-one');
                }, 1000)
                return
            } else if (documentSignType === 'multiple-sign') {
                setTimeout(() => {
                    navigate('/process-step-one');
                }, 1000)
                return
            }
        }
        dispatch(hideLoader());
    }, [documentSignType])

    useEffect(() => {
        if (showConfetti) {
            const duration = 3000;
            const end = Date.now() + duration;

            const interval = setInterval(() => {
                if (Date.now() > end) {
                    clearInterval(interval);
                    return;
                }

                confetti({
                    particleCount: 80, // more particles
                    angle: Math.random() * 360, // fire in random direction
                    spread: 220, // wider spread
                    startVelocity: 15, // more power
                    scalar: 1.2, // bigger pieces (default is 1)
                    origin: {
                        x: Math.random(),
                        y: Math.random() * 0.6,
                    },
                    zIndex: 9999,
                });
            }, 350); // fire every 150ms
        }
    }, [showConfetti]);

    useEffect(() => {
        // Function to handle window resize
        const handleResize = () => {
            const mobile = window.innerWidth <= 768;
            setIsMobile(mobile);
            
            if (mobile) {
                setShowSideBar(false); // hide sidebar on mobile by default
            } else {
                setShowSideBar(true); // show sidebar on desktop
            }
        };

        // Set sidebar visibility on mount
        handleResize();

        // Add event listener
        window.addEventListener('resize', handleResize);

        // Cleanup listener on unmount
        return () => window.removeEventListener('resize', handleResize);
    }, []);

    return (
        <>
            <>
                {
                    showConfetti && (
                        <div className="absolute top-0 left-0 w-full h-full z-[9999] bg-white/80 backdrop-blur-sm flex items-center justify-center">
                            {/* <Confetti width={width} height={height} /> */}

                            <div className="relative bg-white bg-opacity-90 backdrop-blur-lg border border-green-200 shadow-xl rounded-md px-8 py-6 w-[90%] max-w-sm text-center animate-fade-in-up">
                                {/* Close Icon */}
                                <button
                                    onClick={() => setShowConfetti(false)} // or whatever logic hides the modal
                                    className="absolute top-2 right-2 text-gray-500 hover:text-gray-700"
                                    aria-label="Close"
                                >
                                    <IoClose className="text-2xl" />
                                </button>

                                {/* Success Icon */}
                                <FaCheckCircle className="text-green-500 text-5xl mb-4 mx-auto drop-shadow-lg" />

                                {/* Message */}
                                <h2 className="text-2xl font-semibold text-gray-800 mb-1">Transaction Successful</h2>
                                <p className="text-gray-600 text-sm">Your transaction has been created and saved successfully.</p>
                            </div>
                        </div>
                    )
                }
            </>

            {
                user?.authorized &&
                <div className={`relative`}>
                    {/* Mobile Overlay when sidebar is open */}
                    {isMobile && showSideBar && (
                        <div 
                            className="fixed inset-0 bg-black/30 bg-opacity-50 z-40"
                            onClick={() => setShowSideBar(false)}
                        />
                    )}

                    {/* Complete Dashboard Back Side SideBar */}
                    <div className={`relative w-full h-screen overflow-hidden bg-[var(--dashBoardBg)] ${(globalLoader.isLoading || globalModalIsOpen) ? 'pointer-events-none' : ''}`}>

                        <SideBar 
                            showSideBar={showSideBar} 
                            setShowSideBar={setShowSideBar}
                            isMobile={isMobile}
                        />

                        {/* On Top Main Content - START */}
                        <div
                            className={`overflow-y-auto absolute no-scrollbar h-full right-0 bottom-0 overflow-hidden bg-[var(--mainViewBg)]`}
                            style={{
                                width: !isMobile 
                                    ? (showSideBar ? 'calc(100% - 250px)' : 'calc(100% - 60px)')
                                    : '100%', // Full width on mobile
                                transition: 'width 0.6s ease'
                            }}
                        >
                            {/* Main Content */}
                            <div>
                                <CommonNav 
                                    showSideBar={showSideBar}
                                    setShowSideBar={setShowSideBar}
                                    isMobile={isMobile}
                                />
                                <Outlet />
                            </div>
                        </div>

                        {/* On Top Main Content - END */}
                    </div>

                    {globalLoader.isLoading && <Loader />}
                    {globalModalIsOpen && <SignModal />}
                </div>}
        </>

    )
}

export default Dashboard