@extends('layouts.app')

@section('title', 'Alertes DLC')

@section('styles')
<style>
    .page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; flex-wrap: wrap; gap: 12px; }
    .section-title { font-family: 'Cormorant Garamond', serif; font-size: 22px; font-weight: 600; color: #2D4A5F; }
    .btn-primary {
        display: inline-flex; align-items: center; gap: 8px;
        background: #2D4A5F; color: #C8B47A; border: none;
        border-radius: 10px; padding: 11px 20px; font-size: 13px;
        font-family: 'Jost', sans-serif; font-weight: 500;
        letter-spacing: .06em; cursor: pointer; text-decoration: none;
        transition: background .2s;
    }
    .btn-primary:hover { background: #3a5f78; }
    .btn-primary svg { width: 16px; height: 16px; }
    .btn-danger {
        display: inline-flex; align-items: center; gap: 8px;
        background: #fef2f2; color: #dc2626; border: 1.5px solid #fecaca;
        border-radius: 10px; padding: 11px 20px; font-size: 13px;
        font-family: 'Jost', sans-serif; font-weight: 500;
        letter-spacing: .06em; cursor: pointer;
        transition: background .2s;
    }
    .btn-danger:hover { background: #fee2e2; }
    .btn-group { display: flex; gap: 8px; flex-wrap: wrap; }

    .alert-banner { border-radius: 12px; padding: 16px 20px; display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
    .alert-banner.danger { background: #FCEBEB; border: 1px solid #f5c6c6; }
    .alert-banner.warn   { background: #FAEEDA; border: 1px solid #f5d88a; }
    .alert-banner.ok     { background: #E1F5EE; border: 1px solid #9FE1CB; }
    .alert-banner-icon  { font-size: 28px; flex-shrink: 0; }
    .alert-banner-title { font-size: 15px; font-weight: 500; color: #1e2d3a; }
    .alert-banner-sub   { font-size: 12px; color: #6b7c8d; margin-top: 2px; }

    .card { background: white; border-radius: 14px; border: 1px solid #dde3e8; padding: 20px; margin-bottom: 16px; }
    .card-title { font-family: 'Cormorant Garamond', serif; font-size: 18px; font-weight: 600; color: #2D4A5F; margin-bottom: 16px; }

    .swipe-row-wrap { position: relative; overflow: hidden; border-radius: 8px; margin: 0 -4px; }
    .swipe-row-bg {
        position: absolute; top: 0; right: 0; bottom: 0; width: 100%;
        background: #dc2626;
        display: flex; align-items: center; justify-content: flex-end;
        padding-right: 20px;
        font-size: 13px; font-weight: 600; color: #fff;
        pointer-events: none; border-radius: 8px;
    }
    .produit-row {
        display: flex; align-items: center; gap: 12px;
        padding: 10px 4px; border-bottom: 1px solid #f0f2f4;
        background: white;
        position: relative; z-index: 1;
        transition: transform 0.15s ease;
        will-change: transform;
        touch-action: pan-y;
    }
    .swipe-row-wrap:last-child .produit-row { border-bottom: none; }

    .produit-icon { width: 36px; height: 36px; border-radius: 8px; background: #f7f2e8; display: flex; align-items: center; justify-content: center; font-size: 16px; flex-shrink: 0; }
    .produit-info { flex: 1; min-width: 0; }
    .produit-name { font-size: 13px; font-weight: 500; color: #1e2d3a; }
    .produit-meta { font-size: 11px; color: #6b7c8d; margin-top: 2px; }

    .dlc-badge { font-size: 11px; padding: 3px 10px; border-radius: 20px; font-weight: 500; flex-shrink: 0; }
    .dlc-danger { background: #FCEBEB; color: #791F1F; }
    .dlc-warn   { background: #FAEEDA; color: #633806; }

    .empty-state { text-align: center; padding: 40px; color: #6b7c8d; font-size: 13px; }
    .alert-success { background: #E1F5EE; border: 1px solid #9FE1CB; border-radius: 10px; padding: 12px 16px; font-size: 13px; color: #085041; margin-bottom: 16px; }
    .alert-error   { background: #FCEBEB; border: 1px solid #f5c6c6; border-radius: 10px; padding: 12px 16px; font-size: 13px; color: #c0392b; margin-bottom: 16px; }

    .swipe-hint { display: none; font-size: 11px; color: #94a3b8; text-align: right; margin-bottom: 8px; }
    @media (max-width: 768px) { .swipe-hint { display: block; } }

    .swipe-toast {
        position: fixed; bottom: 80px; left: 50%; transform: translateX(-50%) translateY(20px);
        background: #dc2626; color: #fff; border-radius: 10px;
        padding: 12px 20px; font-size: 14px; font-weight: 600;
        opacity: 0; pointer-events: none;
        transition: opacity .2s, transform .2s;
        z-index: 999; white-space: nowrap;
    }
    .swipe-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); pointer-events: auto; }
</style>
@endsection

@section('content')

@if(session('success'))
<div class="alert-success">✓ {{ session('success') }}</div>
@endif
@if(session('error'))
<div class="alert-error">⚠ {{ session('error') }}</div>
@endif

<div class="page-header">
    <h1 class="section-title">Alertes DLC</h1>
    <div class="btn-group">
        <form method="POST" action="{{ route('alertes.envoyer') }}">
            @csrf
            <button type="submit" class="btn-primary">
                <svg fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="1.5">
                    <path stroke-linecap="round" stroke-linejoin="round" d="M21.75 6.75v10.5a2.25 2.25 0 01-2.25 2.25h-15a2.25 2.25 0 01-2.25-2.25V6.75m19.5 0A2.25 2.25 0 0019.5 4.5h-15a2.25 2.25 0 00-2.25 2.25m19.5 0v.243a2.25 2.25 0 01-1.07 1.916l-7.5 4.615a2.25 2.25 0 01-2.36 0L3.32 8.91a2.25 2.25 0 01-1.07-1.916V6.75"/>
                </svg>
                Envoyer alerte email
            </button>
        </form>

        @if($produits_expires->count() > 0)
        <form method="POST" action="{{ route('alertes.purger') }}"
              onsubmit="return confirm('Supprimer les {{ $produits_expires->count() }} produit(s) expiré(s) ? Cette action est irréversible.')">
            @csrf
            <button type="submit" class="btn-danger">
                🗑 Supprimer les expirés ({{ $produits_expires->count() }})
            </button>
        </form>
        @endif
    </div>
</div>

@if($produits_expires->count() > 0)
<div class="alert-banner danger">
    <div class="alert-banner-icon">🚨</div>
    <div>
        <div class="alert-banner-title">{{ $produits_expires->count() }} produit(s) expiré(s)</div>
        <div class="alert-banner-sub">Ces produits ne doivent plus être utilisés</div>
    </div>
</div>
@endif

@if($produits_urgents->count() > 0)
<div class="alert-banner warn">
    <div class="alert-banner-icon">⚠️</div>
    <div>
        <div class="alert-banner-title">{{ $produits_urgents->count() }} produit(s) arrivent à expiration</div>
        <div class="alert-banner-sub">DLC dans moins de 3 jours — vérifiez avant utilisation</div>
    </div>
</div>
@endif

@if($produits_urgents->count() === 0 && $produits_expires->count() === 0)
<div class="alert-banner ok">
    <div class="alert-banner-icon">✅</div>
    <div>
        <div class="alert-banner-title">Aucune alerte — tout est en ordre !</div>
        <div class="alert-banner-sub">Tous vos produits sont dans les dates limites</div>
    </div>
</div>
@endif

@if($produits_urgents->count() > 0)
<div class="card">
    <h2 class="card-title">⚠️ Expirent bientôt</h2>
    <p class="swipe-hint">← Glissez à gauche pour supprimer</p>
    @foreach($produits_urgents as $produit)
    @php
        $jours = (int) ceil((strtotime($produit->dlc) - strtotime('today')) / 86400);
        $dlcClass = $jours <= 1 ? 'dlc-danger' : 'dlc-warn';
        $dlcLabel = $jours === 0 ? "Aujourd'hui" : ($jours === 1 ? 'Demain' : 'Dans '.$jours.' j');
    @endphp
    <div class="swipe-row-wrap" data-id="{{ $produit->id }}">
        <div class="swipe-row-bg">🗑 Supprimer</div>
        <div class="produit-row">
            <div class="produit-icon">🍽️</div>
            <div class="produit-info">
                <div class="produit-name">{{ $produit->nom }}</div>
                <div class="produit-meta">DLC {{ $produit->dlc->format('d/m/Y') }} · {{ $produit->evenement->nom ?? 'Sans événement' }}</div>
            </div>
            <span class="dlc-badge {{ $dlcClass }}">{{ $dlcLabel }}</span>
        </div>
        <form class="delete-form" method="POST" action="{{ route('produits.destroy', $produit) }}" style="display:none">
            @csrf @method('DELETE')
            <input type="hidden" name="redirect_to" value="alertes">
        </form>
    </div>
    @endforeach
</div>
@endif

@if($produits_expires->count() > 0)
<div class="card" style="border-color:#f5c6c6;">
    <h2 class="card-title" style="color:#c0392b;">🚨 Produits expirés</h2>
    <p class="swipe-hint">← Glissez à gauche pour supprimer</p>
    @foreach($produits_expires as $produit)
    <div class="swipe-row-wrap" data-id="{{ $produit->id }}">
        <div class="swipe-row-bg">🗑 Supprimer</div>
        <div class="produit-row">
            <div class="produit-icon">🍽️</div>
            <div class="produit-info">
                <div class="produit-name">{{ $produit->nom }}</div>
                <div class="produit-meta">Expiré le {{ $produit->dlc->format('d/m/Y') }} · {{ $produit->evenement->nom ?? 'Sans événement' }}</div>
            </div>
            <span class="dlc-badge dlc-danger">Expiré</span>
        </div>
        <form class="delete-form" method="POST" action="{{ route('produits.destroy', $produit) }}" style="display:none">
            @csrf @method('DELETE')
            <input type="hidden" name="redirect_to" value="alertes">
        </form>
    </div>
    @endforeach
</div>
@endif

@endsection

@section('scripts')
<script>
const SWIPE_THRESHOLD = 80;

document.querySelectorAll('.swipe-row-wrap').forEach(wrap => {
    const row  = wrap.querySelector('.produit-row');
    const form = wrap.querySelector('.delete-form');
    let startX = 0, currentX = 0, dragging = false;

    row.addEventListener('touchstart', e => {
        startX   = e.touches[0].clientX;
        currentX = 0;
        dragging = true;
    }, { passive: true });

    row.addEventListener('touchmove', e => {
        if (!dragging) return;
        const dx = e.touches[0].clientX - startX;
        if (dx > 0) return;
        currentX = dx;
        row.style.transform = `translateX(${Math.max(dx, -140)}px)`;
    }, { passive: true });

    row.addEventListener('touchend', () => {
        dragging = false;
        if (currentX < -SWIPE_THRESHOLD) {
            confirmDelete(wrap, row, form);
        } else {
            row.style.transform = 'translateX(0)';
        }
    });
});

function confirmDelete(wrap, row, form) {
    row.style.transition = 'transform 0.25s ease';
    row.style.transform  = 'translateX(-100%)';

    const toast = document.createElement('div');
    toast.className = 'swipe-toast';
    toast.innerHTML = '🗑 Supprimé &nbsp;<button onclick="cancelDelete(this)" style="background:rgba(255,255,255,0.25);border:none;color:#fff;padding:4px 12px;border-radius:6px;font-size:13px;cursor:pointer;">Annuler</button>';
    document.body.appendChild(toast);
    toast._wrap = wrap; toast._row = row; toast._cancelled = false;
    setTimeout(() => toast.classList.add('show'), 10);

    toast._timer = setTimeout(() => {
        if (!toast._cancelled) form.submit();
        toast.classList.remove('show');
        setTimeout(() => toast.remove(), 300);
    }, 3000);
}

function cancelDelete(btn) {
    const toast = btn.closest('.swipe-toast');
    toast._cancelled = true;
    clearTimeout(toast._timer);
    const row = toast._row;
    row.style.transition = 'transform 0.3s ease';
    row.style.transform  = 'translateX(0)';
    toast.classList.remove('show');
    setTimeout(() => toast.remove(), 300);
}
</script>
@endsection