import React, { useRef, useState, useEffect, useCallback } from "react";
import GenericButton from "@/components/buttons/GenericButton";
import { DataTable } from "primereact/datatable";
import { Column } from "primereact/column";
import { useImageProxy } from "@/hooks/useImageProxy";
import { useSession } from 'next-auth/react';
import { ProgressSpinner } from "primereact/progressspinner";
import { useNDKContext, defaultRelayUrls } from "@/context/NDKContext";
import useWindowWidth from "@/hooks/useWindowWidth";
import Image from "next/image";
import BitcoinConnectButton from "@/components/bitcoinConnect/BitcoinConnect";
import { Panel } from "primereact/panel";
import { nip19 } from "nostr-tools";
import { InputText } from "primereact/inputtext";
import { Tooltip } from "primereact/tooltip";
import { useToast } from "@/hooks/useToast";

const UserSettings = () => {
    const [user, setUser] = useState(null);
    const [collapsed, setCollapsed] = useState(true);
    const { ndk, userRelays, setUserRelays, reInitializeNDK } = useNDKContext();
    const { data: session } = useSession();
    const { returnImageProxy } = useImageProxy();
    const windowWidth = useWindowWidth();
    const [newRelayUrl, setNewRelayUrl] = useState("");
    const { showToast } = useToast();
    const [relayStatuses, setRelayStatuses] = useState({});
    const [updateTrigger, setUpdateTrigger] = useState(0);

    useEffect(() => {
        if (session?.user) {
            setUser(session.user);
        }
    }, [session]);

    useEffect(() => {
        if (ndk) {
            updateRelayStatuses();
        }
    }, [ndk]);


    const updateRelayStatuses = useCallback(() => {
        // export enum NDKRelayStatus {
        //     DISCONNECTING, // 0
        //     DISCONNECTED, // 1
        //     RECONNECTING, // 2
        //     FLAPPING, // 3
        //     CONNECTING, // 4

        //     // connected states
        //     CONNECTED, // 5
        //     AUTH_REQUESTED, // 6
        //     AUTHENTICATING, // 7
        //     AUTHENTICATED, // 8
        // }
        if (ndk) {
            console.log("Updating relay statuses");
            const statuses = {};
            ndk.pool.relays.forEach((relay, url) => {
                statuses[url] = relay.connectivity.status === 5;
            });
            setRelayStatuses(statuses);
        }
    }, [ndk]);

    // Effect for periodic polling
    useEffect(() => {
        const intervalId = setInterval(() => {
            setUpdateTrigger(prev => prev + 1);
        }, 3000); // Poll every 3 seconds

        return () => clearInterval(intervalId); // Cleanup on unmount
    }, []);

    // Effect to update on every render and when updateTrigger changes
    useEffect(() => {
        updateRelayStatuses();
    }, [updateRelayStatuses, updateTrigger]);

    const relayStatusBody = (url) => {
        const isConnected = relayStatuses[url];
        return (
            <i className={`pi ${isConnected ? 'pi-check-circle text-green-500' : 'pi-times-circle text-red-500'}`}></i>
        );
    };

    const addRelay = () => {
        if (newRelayUrl && !userRelays.includes(newRelayUrl)) {
            setUserRelays([...userRelays, newRelayUrl]);
            setNewRelayUrl("");
            reInitializeNDK();
            setCollapsed(true);
            showToast("success", "Relay added", "Relay successfully added to your list of relays.");
        }
    };

    const removeRelay = (url) => {
        if (!defaultRelayUrls.includes(url)) {
            setUserRelays(userRelays.filter(relay => relay !== url));
            reInitializeNDK();
            setCollapsed(true);
            showToast("success", "Relay removed", "Relay successfully removed from your list of relays.");
        }
    };

    const relayActionsBody = (rowData) => {
        return (
            <div>
                {!defaultRelayUrls.includes(rowData) ? (
                    <GenericButton
                        icon="pi pi-trash"
                        className="p-button-rounded p-button-danger p-button-text"
                        onClick={() => removeRelay(rowData)}
                    />
                ) : (
                    <>
                        <GenericButton
                            icon="pi pi-trash"
                            className="p-button-rounded p-button-danger p-button-text opacity-50"
                            onClick={() => removeRelay(rowData)}
                            tooltip="Cannot remove default relays at this time (soon ™)"
                            tooltipOptions={{ position: 'top' }}
                            style={{
                                pointerEvents: 'none',
                                cursor: 'not-allowed'
                            }}
                        />
                    </>
                )}
            </div>
        );
    };

    const PanelHeader = (options) => {
        return (
            <div className="w-full flex flex-row justify-between p-4 bg-gray-800 rounded-t-lg">
                <p className="text-[#f8f8ff] text-xl font-bold">Relays</p>
                <GenericButton onClick={options.onTogglerClick} icon="pi pi-plus" className="p-button-rounded p-button-success p-button-text" />
            </div>
        );
    };

    return (
        user && (
            <div className="p-4">
                {
                    windowWidth < 768 && (
                        <h1 className="text-3xl font-bold mb-6">Settings</h1>
                    )
                }
                <div className="w-full flex flex-col justify-center mx-auto">
                    <div className="relative flex w-full items-center justify-center">
                        <Image
                            alt="user's avatar"
                            src={returnImageProxy(user.avatar, user.pubkey)}
                            width={100}
                            height={100}
                            className="rounded-full my-4"
                        />
                    </div>

                    <h1 className="text-center text-2xl my-2">
                        {user.username || user?.email || "Anon"}
                    </h1>
                    <h2 className="text-center text-xl my-2 truncate max-tab:px-4 max-mob:px-4">
                    <Tooltip target=".pubkey-tooltip" content={"this is your nostr npub"} />
                    {nip19.npubEncode(user.pubkey)} <i className="pi pi-question-circle text-xl pubkey-tooltip" />
                    </h2>
                    <div className="flex flex-col w-1/2 mx-auto my-8 mb-12 justify-between items-center">
                        <h2 className="text-xl my-2 max-mob:text-base max-tab:text-base">Connect Your Lightning Wallet</h2>
                        <BitcoinConnectButton />
                    </div>
                </div>
                {!session || !session?.user || !ndk ? (
                    <ProgressSpinner />
                ) : (
                    <>
                        <Panel
                            headerTemplate={PanelHeader}
                            toggleable
                            collapsed={collapsed}
                            onToggle={(e) => setCollapsed(e.value)}
                        >
                            <div className="flex flex-row justify-between">
                                <InputText
                                    placeholder="Relay URL"
                                    value={newRelayUrl}
                                    onChange={(e) => setNewRelayUrl(e.target.value)}
                                />
                                <GenericButton
                                    label="Add"
                                    severity="success"
                                    className='w-fit px-4'
                                    outlined
                                    onClick={addRelay}
                                />
                            </div>
                        </Panel>
                        <DataTable value={userRelays}
                            pt={{
                                wrapper: {
                                    className: "rounded-lg rounded-t-none"
                                },
                                header: {
                                    className: "rounded-t-lg"
                                }
                            }}
                            onValueChange={() => setUpdateTrigger(prev => prev + 1)} // Trigger update when table value changes
                        >
                            <Column field={(url) => url} header="Relay URL"></Column>
                            <Column body={relayStatusBody} header="Status"></Column>
                            <Column body={relayActionsBody} header="Actions"></Column>
                        </DataTable>
                    </>
                )}
            </div>
        )
    );
};

export default UserSettings;