"use client";

import styles from "./navMenu.module.css";
import Link from "next/link";
import { useAuthenticatedData } from "@/app/common/auth";
import { useState, useEffect } from "react";
import { Avatar, AvatarImage, AvatarFallback } from "@/components/ui/avatar";

import {
    Menubar,
    MenubarContent,
    MenubarItem,
    MenubarMenu,
    MenubarSeparator,
    MenubarTrigger,
} from "@/components/ui/menubar";

import {
    DropdownMenu,
    DropdownMenuContent,
    DropdownMenuItem,
    DropdownMenuSeparator,
    DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu";
import { Moon, Sun, UserCircle, Question, GearFine, ArrowRight, Code } from "@phosphor-icons/react";
import { KhojAgentLogo, KhojAutomationLogo, KhojSearchLogo } from "../logo/khojLogo";
import { useIsMobileWidth } from "@/app/common/utils";
import LoginPrompt from "../loginPrompt/loginPrompt";
import { Button } from "@/components/ui/button";
import { SidebarMenu, SidebarMenuButton, SidebarMenuItem } from "@/components/ui/sidebar";
import { ChevronUp } from "lucide-react";

function SubscriptionBadge({ is_active }: { is_active: boolean }) {
    return (
        <div className="flex flex-row items-center">
            <div
                className={`w-3 h-3 rounded-full ${is_active ? "bg-yellow-500" : "bg-muted"} mr-1`}
            ></div>
            <p className="text-xs">{is_active ? "Futurist" : "Free"}</p>
        </div>
    );
}

function VersionBadge({ version }: { version: string }) {
    return (
        <div className="flex flex-row items-center">
            <div className="w-3 h-3 rounded-full bg-green-500 mr-1"></div>
            <p className="text-xs">{version}</p>
        </div>
    );
}

interface NavMenuProps {
    sideBarIsOpen: boolean;
}

export default function NavMenu({ sideBarIsOpen }: NavMenuProps) {
    const userData = useAuthenticatedData();
    const [darkMode, setDarkMode] = useState(false);
    const [initialLoadDone, setInitialLoadDone] = useState(false);
    const isMobileWidth = useIsMobileWidth();
    const [showLoginPrompt, setShowLoginPrompt] = useState(false);

    useEffect(() => {
        if (localStorage.getItem("theme") === "dark") {
            document.documentElement.classList.add("dark");
            setDarkMode(true);
        } else if (localStorage.getItem("theme") === "light") {
            document.documentElement.classList.remove("dark");
            setDarkMode(false);
        } else {
            const mq = window.matchMedia("(prefers-color-scheme: dark)");

            if (mq.matches) {
                document.documentElement.classList.add("dark");
                setDarkMode(true);
            }
        }

        setInitialLoadDone(true);
    }, []);

    useEffect(() => {
        if (!initialLoadDone) return;
        toggleDarkMode(darkMode);
    }, [darkMode, initialLoadDone]);

    function toggleDarkMode(darkMode: boolean) {
        if (darkMode) {
            document.documentElement.classList.add("dark");
        } else {
            document.documentElement.classList.remove("dark");
        }
        localStorage.setItem("theme", darkMode ? "dark" : "light");
    }

    return (
        <SidebarMenu className="border-none p-0 m-0">
            <SidebarMenuItem className="p-0 m-0">
                <DropdownMenu>
                    <DropdownMenuTrigger asChild>
                        <SidebarMenuButton className="p-0 m-0 rounded-lg" asChild>
                            {userData ? (
                                <span className="flex items-center gap-2">
                                    <Avatar
                                        className={`${sideBarIsOpen ? "h-8 w-8" : "h-6 w-6"} border-2 ${userData.is_active ? "border-yellow-500" : "border-stone-700 dark:border-stone-300"}`}
                                    >
                                        <AvatarImage src={userData?.photo} alt="user profile" />
                                        <AvatarFallback className="bg-transparent hover:bg-muted">
                                            {userData?.username[0].toUpperCase()}
                                        </AvatarFallback>
                                    </Avatar>
                                    {sideBarIsOpen && (
                                        <>
                                            <p>{userData?.username}</p>
                                            <ChevronUp className="w-6 h-6" />
                                        </>
                                    )}
                                </span>
                            ) : (
                                <UserCircle className="w-10 h-10" />
                            )}
                        </SidebarMenuButton>
                    </DropdownMenuTrigger>
                    <DropdownMenuContent align="end" className="rounded-xl gap-2">
                        <DropdownMenuItem className="w-full">
                            <div className="flex flex-col">
                                <p className="font-semibold">{userData?.email}</p>
                                <SubscriptionBadge is_active={userData?.is_active ?? false} />
                                {userData?.khoj_version && (
                                    <VersionBadge version={userData?.khoj_version} />
                                )}
                            </div>
                        </DropdownMenuItem>
                        <DropdownMenuSeparator className="dark:bg-white height-[2px] bg-black" />
                        <DropdownMenuItem
                            onClick={() => setDarkMode(!darkMode)}
                            className="w-full hover:cursor-pointer"
                        >
                            <div className="flex flex-rows">
                                {darkMode ? (
                                    <Sun className="w-6 h-6" />
                                ) : (
                                    <Moon className="w-6 h-6" />
                                )}
                                <p className="ml-3 font-semibold">
                                    {darkMode ? "Light Mode" : "Dark Mode"}
                                </p>
                            </div>
                        </DropdownMenuItem>
                        <DropdownMenuItem>
                            <Link href="https://docs.khoj.dev" className="no-underline w-full">
                                <div className="flex flex-rows">
                                    <Question className="w-6 h-6" />
                                    <p className="ml-3 font-semibold">Help</p>
                                </div>
                            </Link>
                        </DropdownMenuItem>

                        <DropdownMenuItem>
                            <Link
                                href="https://github.com/khoj-ai/khoj/releases"
                                className="no-underline w-full"
                            >
                                <div className="flex flex-rows">
                                    <Code className="w-6 h-6" />
                                    <p className="ml-3 font-semibold">Releases</p>
                                </div>
                            </Link>
                        </DropdownMenuItem>
                        {userData ? (
                            <DropdownMenuItem>
                                <Link href="/auth/logout" className="no-underline w-full">
                                    <div className="flex flex-rows">
                                        <ArrowRight className="w-6 h-6" />
                                        <p className="ml-3 font-semibold">Logout</p>
                                    </div>
                                </Link>
                            </DropdownMenuItem>
                        ) : (
                            <DropdownMenuItem>
                                <Button
                                    variant={"ghost"}
                                    onClick={() => setShowLoginPrompt(true)}
                                    className="no-underline w-full text-left p-0 content-start justify-start items-start h-fit"
                                >
                                    <div className="flex flex-rows text-left content-start justify-start items-start p-0">
                                        <ArrowRight className="w-6 h-6" />
                                        <p className="ml-3 font-semibold">Login</p>
                                    </div>
                                </Button>
                            </DropdownMenuItem>
                        )}
                    </DropdownMenuContent>
                </DropdownMenu>
            </SidebarMenuItem>
        </SidebarMenu>
    );
}