@extends('layouts.app')

@section('title', $book->title ?? 'Buku Digital Pembelajaran')

@section('content')
<div class="bg-gray-50/50 py-12 min-h-screen">
    <div class="max-w-5xl mx-auto px-4 sm:px-6 lg:px-8">
        
        <div class="flex flex-col md:flex-row items-center gap-8 bg-white p-6 md:p-8 rounded-2xl border border-gray-100 shadow-sm mb-12">
            <div class="w-40 sm:w-44 shrink-0 shadow-md rounded-xl overflow-hidden bg-gradient-to-br from-blue-500 to-blue-600 aspect-[2/3] relative">
                @if(isset($book) && $book->cover_image)
                    <img src="{{ Storage::url($book->cover_image) }}" alt="{{ $book->title }}" class="w-full h-full object-cover">
                @else
                    <div class="absolute inset-0 flex items-center justify-center text-white text-xs opacity-50">No Cover</div>
                @endif
            </div>
            
            <div class="text-center md:text-left space-y-3 flex-1">
                <span class="px-3 py-1 bg-blue-50 text-blue-600 rounded-full text-[10px] font-bold uppercase tracking-wider inline-block">
                    📖 Portal Buku Digital Utama
                </span>
                <h1 class="text-2xl md:text-3xl font-extrabold text-gray-900 tracking-tight leading-tight">
                    {{ $book->title ?? 'Buku Utama Pembelajaran' }}
                </h1>
                <p class="text-sm text-gray-500">
                    Penyusun / Penulis: <span class="font-semibold text-gray-700">{{ $book->author ?? 'Tim Pengajar' }}</span>
                </p>
                <div class="text-xs text-gray-400 leading-relaxed bg-gray-50 p-3 rounded-xl border border-gray-100/50">
                    {!! $book->description ?? 'Deskripsi materi belum ditentukan.' !!}
                </div>
            </div>
        </div>

        <div class="flex items-center justify-between mb-6 border-b border-gray-200 pb-4">
            <h2 class="text-base font-bold text-gray-800 flex items-center gap-2">
                🗂️ Daftar Isi Bab Materi
            </h2>
            <span class="text-xs text-gray-400 bg-gray-100 px-2.5 py-1 rounded-md font-medium">
                Total: {{ $chapters->count() }} Bab
            </span>
        </div>

        @if(isset($chapters) && $chapters->count() > 0)
            <div class="grid grid-cols-2 sm:grid-cols-3 md:grid-cols-4 lg:grid-cols-5 gap-5">
                @foreach($chapters as $chapter)
                <a href="{{ route('book.read', $chapter->chapter_number) }}" class="group">
                    <div class="bg-white rounded-xl shadow-sm border border-gray-100 overflow-hidden hover:shadow-md transition duration-200">
                        
                        <div class="aspect-[2/3] bg-gradient-to-br from-blue-400 to-blue-600 relative flex items-center justify-center p-4">
                            @if(isset($book) && $book->cover_image)
                                <img src="{{ Storage::url($book->cover_image) }}" alt="{{ $chapter->title }}" class="absolute inset-0 w-full h-full object-cover opacity-25 group-hover:opacity-35 transition duration-200">
                            @endif
                            
                            <div class="z-10 text-center text-white">
                                <span class="block text-3xl font-black tracking-tight drop-shadow-sm">{{ $chapter->chapter_number }}</span>
                                <span class="text-[9px] uppercase font-bold tracking-widest bg-black/20 px-2 py-0.5 rounded mt-1 inline-block">BAB</span>
                            </div>

                            <div class="absolute bottom-0 left-0 right-0 bg-gradient-to-t from-black/50 to-transparent p-2 flex justify-between text-white text-[10px] z-10">
                                <span>👁 {{ number_format($chapter->total_views ?? 0) }}</span>
                            </div>
                        </div>
                        
                        <div class="p-3 bg-white border-t border-gray-50 min-h-[65px] flex flex-col justify-center">
                            <h3 class="font-bold text-xs text-gray-700 line-clamp-2 group-hover:text-blue-600 transition leading-tight">
                                {{ $chapter->title }}
                            </h3>
                        </div>
                    </div>
                </a>
                @endforeach
            </div>

            @if($chapters->hasPages())
                <div class="mt-10">
                    {{ $chapters->links() }}
                </div>
            @endif
        @else
            <div class="text-center py-16 bg-white rounded-2xl border border-gray-100 max-w-md mx-auto shadow-sm">
                <h3 class="text-sm font-semibold text-gray-800 mb-1">Belum Ada Bab</h3>
                <p class="text-xs text-gray-400">Silakan input materi pembelajaran baru melalui dashboard admin.</p>
            </div>
        @endif
        
    </div>
</div>
@endsection