import React from 'react';
import { useRouter } from 'expo-router';
import { View, Text, ScrollView, TouchableOpacity } from 'react-native';
import { Bell, User, AlertTriangle, QrCode, FileText, CheckCircle2 } from 'lucide-react-native';
import { MOCK_USER, ATTENDANCE_DATA, DOCUMENTS_DATA } from '../data/data';

export default function HomeScreen() {
    const router = useRouter();
    const incompleteTasks = ATTENDANCE_DATA.filter(item => item.status === 'incomplete');

    return (
        <View className="flex-1 bg-gray-50">
            {/* Banner Custom */}
            <View className="bg-[#099499] pt-16 pb-6 px-6 rounded-b-[2rem] shadow-sm z-10">
                <View className="flex-row justify-between items-start">
                    <View className="flex-row items-center gap-4">
                        <View>
                            <Text className="text-teal-100 text-lg font-medium uppercase tracking-wider mb-1">Benvenuto</Text>
                            <Text className="text-white text-3xl font-bold">{MOCK_USER.name}</Text>
                            <Text className="text-teal-200">{MOCK_USER.role}</Text>
                        </View>
                    </View>
                    <View className="flex-row gap-4">
                        <TouchableOpacity className="relative p-3 bg-white/10 rounded-full active:bg-white/20">
                            <Bell size={28} color="white" />
                            <View className="absolute top-2.5 right-3 w-3 h-3 bg-red-500 rounded-full border-2 border-[#099499]" />
                        </TouchableOpacity>
                        <TouchableOpacity className="p-3 bg-white/10 rounded-full active:bg-white/20">
                            <User size={28} color="white" />
                        </TouchableOpacity>
                    </View>
                </View>
            </View>

            {/* Contenuto Scrollabile */}
            <ScrollView
                className="flex-1 px-5 pt-6"
                contentContainerStyle={{ paddingBottom: 50, gap: 24 }}
                showsVerticalScrollIndicator={false}
            >

                {/* Warning Card - OPZIONALE */}
                {incompleteTasks.length > 0 && (
                    <View className="bg-white p-6 rounded-3xl shadow-sm border-l-8 border-orange-500 flex-row items-center justify-between">
                        <View className="flex-row items-center gap-5 flex-1">
                            <View className="bg-orange-100 p-4 rounded-full">
                                <AlertTriangle size={32} color="#f97316" />
                            </View>
                            <View className="flex-1">
                                <Text className="font-bold text-gray-800 text-lg">Presenza incompleta</Text>
                                <Text className="text-base text-gray-500 mt-1">Manca uscita: {incompleteTasks[0].site}</Text>
                            </View>
                        </View>
                        <TouchableOpacity onPress={() => router.push('/attendance')} className="bg-orange-50 px-5 py-3 rounded-xl ml-2 active:bg-orange-100">
                            <Text className="text-orange-600 text-sm font-bold uppercase tracking-wide">Risolvi</Text>
                        </TouchableOpacity>
                    </View>
                )}

                {/* Quick Actions */}
                <View>
                    <Text className="text-gray-800 text-xl font-bold mb-4 px-1">Azioni Rapide</Text>
                    <View className="flex-row gap-5">
                        <TouchableOpacity
                            onPress={() => router.push('/attendance')}
                            className="flex-1 bg-white p-6 rounded-3xl shadow-sm items-center justify-center gap-4 border border-gray-100 active:scale-[0.98]"
                        >
                            <View className="w-20 h-20 rounded-full bg-teal-50 items-center justify-center mb-1">
                                <QrCode size={40} color="#099499" />
                            </View>
                            <Text className="text-lg font-bold text-gray-700 text-center">Nuova Presenza</Text>
                        </TouchableOpacity>

                        <TouchableOpacity
                            onPress={() => router.push('/documents')}
                            className="flex-1 bg-white p-6 rounded-3xl shadow-sm items-center justify-center gap-4 border border-gray-100 active:scale-[0.98]"
                        >
                            <View className="w-20 h-20 rounded-full bg-blue-50 items-center justify-center mb-1">
                                <FileText size={40} color="#2563eb" />
                            </View>
                            <Text className="text-lg font-bold text-gray-700 text-center">Carica Documento</Text>
                        </TouchableOpacity>
                    </View>
                </View>

                {/* Recent Activity */}
                <View>
                    <View className="flex-row justify-between items-center px-1 mb-4">
                        <Text className="text-gray-800 text-xl font-bold">Ultime Attività</Text>
                        <TouchableOpacity>
                            <Text className="text-base text-[#099499] font-bold p-1">Vedi tutto</Text>
                        </TouchableOpacity>
                    </View>
                    <View className="gap-4">
                        {DOCUMENTS_DATA.slice(0, 2).map((doc, i) => (
                            <View key={i} className="bg-white p-5 rounded-2xl shadow-sm flex-row items-center justify-between border border-gray-100">
                                <View className="flex-row items-center gap-5">
                                    <View className="bg-gray-100 p-4 rounded-2xl">
                                        <FileText size={28} color="#4b5563" />
                                    </View>
                                    <View>
                                        <Text className="text-lg font-bold text-gray-800 mb-1">{doc.name}</Text>
                                        <Text className="text-sm text-gray-400">Nuovo documento • {doc.date}</Text>
                                    </View>
                                </View>
                            </View>
                        ))}
                        {ATTENDANCE_DATA.slice(0, 1).map((att, i) => (
                            <View key={i + 10} className="bg-white p-5 rounded-2xl shadow-sm flex-row items-center justify-between border border-gray-100">
                                <View className="flex-row items-center gap-5">
                                    <View className="bg-[#099499]/10 p-4 rounded-2xl">
                                        <CheckCircle2 size={28} color="#099499" />
                                    </View>
                                    <View>
                                        <Text className="text-lg font-bold text-gray-800 mb-1">Presenza Completata</Text>
                                        <Text className="text-sm text-gray-400">{att.site} • {att.in}</Text>
                                    </View>
                                </View>
                            </View>
                        ))}
                    </View>
                </View>
            </ScrollView>
        </View>
    );
}