import React, { useState } from 'react';
import { useNavigate, useLocation } from 'react-router-dom';
import { Activity, Settings, Move, Camera, Layers, Cpu, Target, Lightbulb, Printer, XCircle, Package, BookOpen } from 'lucide-react';
import { VisionMenu } from '../VisionMenu';
import { FunctionMenu } from '../FunctionMenu';
import { comms } from '../../communication';
import { useAlert } from '../../contexts/AlertContext';

interface HeaderProps {
    currentTime: Date;
    onTabChange: (tab: 'recipe' | 'motion' | 'camera' | 'setting' | 'initialize' | null) => void;
    activeTab: 'recipe' | 'motion' | 'camera' | 'setting' | 'initialize' | null;

}

export const Header: React.FC<HeaderProps> = ({ currentTime, onTabChange, activeTab }) => {
    const navigate = useNavigate();
    const location = useLocation();
    const [showVisionMenu, setShowVisionMenu] = useState(false);
    const [showFunctionMenu, setShowFunctionMenu] = useState(false);
    const { showAlert } = useAlert();

    const isWebView = typeof window !== 'undefined' && !!window.chrome?.webview;
    const isIOPage = location.pathname === '/io-monitor';

    const handleCommand = async (commandFn: () => Promise<{ success: boolean; message: string }>, actionName: string) => {
        try {
            const result = await commandFn();
            if (result.success) {
                console.log(`[Header] ${actionName}: ${result.message}`);
                // Show success message if needed
            } else {
                console.error(`[Header] ${actionName} failed: ${result.message}`);
                showAlert({
                    type: 'error',
                    title: `${actionName} Failed`,
                    message: result.message
                });
            }
        } catch (error: any) {
            console.error(`[Header] ${actionName} error:`, error);
            showAlert({
                type: 'error',
                title: `${actionName} Error`,
                message: error.message || 'Unknown error'
            });
        }
    };

    return (
        <>
            <VisionMenu isOpen={showVisionMenu} onClose={() => setShowVisionMenu(false)} />
            <FunctionMenu isOpen={showFunctionMenu} onClose={() => setShowFunctionMenu(false)} />
            <header className="absolute top-0 left-0 right-0 h-20 px-6 flex items-center justify-between z-40 bg-gradient-to-b from-black/80 to-transparent pointer-events-none">
            <div
                className="flex items-center gap-4 pointer-events-auto cursor-pointer group"
                onClick={() => {
                    navigate('/');
                    onTabChange(null);
                }}
            >
                <div className="w-12 h-12 border-2 border-neon-blue flex items-center justify-center rounded shadow-glow-blue bg-black/50 backdrop-blur group-hover:bg-neon-blue/10 transition-colors">
                    <Cpu className="text-neon-blue w-8 h-8 animate-pulse-slow" />
                </div>
                <div>
                    <h1 className="text-3xl font-tech font-bold text-white tracking-widest uppercase italic text-shadow-glow-blue group-hover:text-neon-blue transition-colors">
                        EQUI-HANDLER <span className="text-neon-blue text-sm not-italic">PRO</span>
                    </h1>
                    <div className="flex gap-2 text-[10px] text-neon-blue/70 font-mono">
                        <span>SYS.VER 4.2.0</span>
                        <span>|</span>
                        <span className={isWebView ? "text-neon-green" : "text-amber-500"}>
                            LINK: {isWebView ? "NATIVE" : "SIMULATION"}
                        </span>
                    </div>
                </div>
            </div>

            {/* Top Navigation */}
            <div className="flex items-center gap-2 pointer-events-auto">
                {/* Quick Action Buttons */}
                <div className="bg-black/40 backdrop-blur-md p-1 rounded-2xl border border-white/10 flex gap-1 mr-2">
                    <button
                        onClick={() => handleCommand(() => comms.openManual(), 'Manual')}
                        className="flex flex-col items-center justify-center gap-1 px-3 py-2 rounded-xl font-tech font-bold text-[10px] transition-all border border-transparent min-w-[70px] text-slate-400 hover:text-blue-400 hover:bg-white/5"
                        title="Open Manual"
                    >
                        <BookOpen className="w-5 h-5" />
                        <span className="leading-tight">MANUAL</span>
                    </button>
                    <button
                        onClick={() => handleCommand(() => comms.toggleLight(), 'Toggle Light')}
                        className="flex flex-col items-center justify-center gap-1 px-3 py-2 rounded-xl font-tech font-bold text-[10px] transition-all border border-transparent min-w-[70px] text-slate-400 hover:text-amber-400 hover:bg-white/5"
                        title="Toggle Room Light"
                    >
                        <Lightbulb className="w-5 h-5" />
                        <span className="leading-tight">LIGHT</span>
                    </button>
                    <button
                        onClick={() => handleCommand(() => comms.openManualPrint(), 'Manual Print')}
                        className="flex flex-col items-center justify-center gap-1 px-3 py-2 rounded-xl font-tech font-bold text-[10px] transition-all border border-transparent min-w-[70px] text-slate-400 hover:text-cyan-400 hover:bg-white/5"
                        title="Open Manual Print"
                    >
                        <Printer className="w-5 h-5" />
                        <span className="leading-tight">PRINT</span>
                    </button>
                    <button
                        onClick={() => handleCommand(() => comms.cancelJob(), 'Cancel Job')}
                        className="flex flex-col items-center justify-center gap-1 px-3 py-2 rounded-xl font-tech font-bold text-[10px] transition-all border border-transparent min-w-[70px] text-slate-400 hover:text-red-400 hover:bg-white/5"
                        title="Cancel Current Job"
                    >
                        <XCircle className="w-5 h-5" />
                        <span className="leading-tight">CANCEL</span>
                    </button>
                </div>

                {/* Main Navigation */}
                <div className="bg-black/40 backdrop-blur-md p-1 rounded-2xl border border-white/10 flex gap-1">
                    {[
                        { id: 'recipe', icon: Layers, label: 'RECIPE', path: '/' },
                        { id: 'io', icon: Activity, label: 'I/O MONITOR', path: '/io-monitor' },
                        { id: 'motion', icon: Move, label: 'MOTION', path: '/' },
                        { id: 'camera', icon: Camera, label: 'VISION', path: '/' },
                        { id: 'function', icon: Package, label: 'FUNCTION', path: '/' },
                        { id: 'setting', icon: Settings, label: 'CONFIG', path: '/' },
                        { id: 'initialize', icon: Target, label: 'INITIALIZE', path: '/' }
                    ].map(item => {
                        const isActive = item.id === 'io'
                            ? location.pathname === '/io-monitor'
                            : activeTab === item.id;

                        return (
                            <button
                                key={item.id}
                                onClick={() => {
                                    if (item.id === 'io') {
                                        navigate('/io-monitor');
                                        onTabChange(null);
                                        setShowVisionMenu(false);
                                        setShowFunctionMenu(false);
                                    } else if (item.id === 'camera') {
                                        // Camera button does nothing on click
                                    } else if (item.id === 'function') {
                                        // Function button does nothing on click
                                    } else {
                                        if (location.pathname !== '/') {
                                            navigate('/');
                                        }
                                        setShowVisionMenu(false);
                                        setShowFunctionMenu(false);
                                        onTabChange(activeTab === item.id ? null : item.id as any);
                                    }
                                }}
                                onMouseEnter={() => {
                                    if (item.id === 'camera') {
                                        setShowVisionMenu(true);
                                        setShowFunctionMenu(false);
                                    } else if (item.id === 'function') {
                                        setShowFunctionMenu(true);
                                        setShowVisionMenu(false);
                                    } else {
                                        setShowVisionMenu(false);
                                        setShowFunctionMenu(false);
                                    }
                                }}
                                className={`
                                flex flex-col items-center justify-center gap-1 px-3 py-2 rounded-xl font-tech font-bold text-[10px] transition-all border border-transparent min-w-[70px]
                                ${isActive || (item.id === 'camera' && showVisionMenu) || (item.id === 'function' && showFunctionMenu)
                                        ? 'bg-neon-blue/10 text-neon-blue border-neon-blue shadow-glow-blue'
                                        : 'text-slate-400 hover:text-white hover:bg-white/5'}
                            `}
                            >
                                <item.icon className="w-5 h-5" />
                                <span className="leading-tight">{item.label}</span>
                            </button>
                        );
                    })}
                </div>
            </div>

            <div className="text-right pointer-events-auto">
                <div className="text-2xl font-mono font-bold text-white text-shadow-glow-blue">
                    {currentTime.toLocaleTimeString('en-GB')}
                </div>
                <div className="text-xs font-tech text-slate-400 tracking-[0.3em]">
                    {currentTime.toLocaleDateString().toUpperCase()}
                </div>
            </div>
        </header>
        </>
    );
};