@extends('layouts.app')

@section('title', 'Danh sách domain')
@section('page_title', 'Danh sách domain')

@section('breadcrumb')
    <li class="breadcrumb-item"><a href="{{ route('home') }}">Trang chủ</a></li>
    <li class="breadcrumb-item active">Domain</li>
@endsection

@push('styles')
    <style>
        .drag-handle {
            cursor: move;
            cursor: grab;
            color: #adb5bd;
            text-align: center;
        }
        .drag-handle:active { cursor: grabbing; }
        tr.sortable-ghost { opacity: 0.4; background: #fff3cd !important; }
        tr.sortable-chosen { background: #e7f1ff !important; }
        #reorder-toast {
            position: fixed; bottom: 24px; right: 24px;
            z-index: 1080; min-width: 240px; display: none;
        }
    </style>
@endpush

@section('content')
    <div class="card">
        <div class="card-header">
            <h3 class="card-title">Tổng số: {{ $domains->total() }}</h3>
            <div class="card-tools d-flex align-items-center">
                <form method="GET" action="{{ route('domains.index') }}" class="mr-2">
                    <div class="input-group input-group-sm">
                        <input type="text" name="search" class="form-control"
                               placeholder="Tìm theo tên domain..."
                               value="{{ $search ?? '' }}"
                               style="width: 220px;">
                        <div class="input-group-append">
                            <button type="submit" class="btn btn-default">
                                <i class="fas fa-search"></i>
                            </button>
                            @if ($search)
                                <a href="{{ route('domains.index') }}" class="btn btn-default" title="Xoá tìm kiếm">
                                    <i class="fas fa-times"></i>
                                </a>
                            @endif
                        </div>
                    </div>
                </form>
                <a href="{{ route('domains.create') }}" class="btn btn-primary btn-sm">
                    <i class="fas fa-plus"></i> Thêm domain
                </a>
            </div>
        </div>

        <div class="card-body p-0">
            <table class="table table-hover mb-0">
                <thead>
                    <tr>
                        <th style="width: 40px"></th>
                        <th style="width: 70px">#</th>
                        <th>Tên domain</th>
                        <th style="width: 140px" class="text-center">Số IP</th>
                        <th style="width: 180px" class="text-right">Thao tác</th>
                    </tr>
                </thead>
                <tbody id="sortable-domains"
                       data-reorder-url="{{ route('domains.reorder') }}"
                       data-can-reorder="{{ $search ? '0' : '1' }}"
                       data-first-item="{{ $domains->firstItem() ?? 1 }}">
                    @forelse ($domains as $domain)
                        <tr data-id="{{ $domain->id }}">
                            <td class="drag-handle" title="{{ $search ? 'Xoá tìm kiếm để bật kéo-thả' : 'Kéo để sắp xếp' }}">
                                <i class="fas fa-grip-vertical"></i>
                            </td>
                            <td class="row-number">{{ $domains->firstItem() + $loop->index }}</td>
                            <td>{{ $domain->name }}</td>
                            <td class="text-center">
                                <span class="badge badge-info">{{ $domain->servers_count }}</span>
                            </td>
                            <td class="text-right">
                                <a href="{{ route('domains.edit', $domain) }}"
                                   class="btn btn-warning btn-sm" title="Sửa">
                                    <i class="fas fa-edit"></i> Sửa
                                </a>
                                <form action="{{ route('domains.destroy', $domain) }}" method="POST"
                                      class="d-inline"
                                      onsubmit="return confirm('Xoá domain &quot;{{ $domain->name }}&quot;? Toàn bộ IP và metrics liên quan sẽ bị xoá vĩnh viễn.');">
                                    @csrf
                                    @method('DELETE')
                                    <button type="submit" class="btn btn-danger btn-sm" title="Xoá">
                                        <i class="fas fa-trash"></i> Xoá
                                    </button>
                                </form>
                            </td>
                        </tr>
                    @empty
                        <tr>
                            <td colspan="5" class="text-center text-muted py-4">
                                @if ($search)
                                    Không tìm thấy domain nào khớp với "<strong>{{ $search }}</strong>".
                                    <a href="{{ route('domains.index') }}">Xoá tìm kiếm</a>
                                @else
                                    Chưa có domain nào.
                                    <a href="{{ route('domains.create') }}">Thêm domain đầu tiên</a>.
                                @endif
                            </td>
                        </tr>
                    @endforelse
                </tbody>
            </table>
        </div>

        @if ($domains->hasPages())
            <div class="card-footer">
                {{ $domains->links() }}
            </div>
        @endif
    </div>

    <div id="reorder-toast" class="alert alert-success shadow">
        <i class="fas fa-check-circle"></i> Đã cập nhật thứ tự.
    </div>
@endsection

@push('scripts')
    <script src="https://cdn.jsdelivr.net/npm/sortablejs@1.15.2/Sortable.min.js"></script>
    <script>
        (function () {
            var tbody = document.getElementById('sortable-domains');
            if (!tbody || tbody.dataset.canReorder !== '1') return;

            var url = tbody.dataset.reorderUrl;
            var firstItem = parseInt(tbody.dataset.firstItem, 10) || 1;
            var token = '{{ csrf_token() }}';
            var toast = document.getElementById('reorder-toast');

            function showToast(message, isError) {
                toast.className = 'alert shadow ' + (isError ? 'alert-danger' : 'alert-success');
                toast.innerHTML = (isError ? '<i class="fas fa-times-circle"></i> ' : '<i class="fas fa-check-circle"></i> ') + message;
                toast.style.display = 'block';
                clearTimeout(toast._timer);
                toast._timer = setTimeout(function () { toast.style.display = 'none'; }, 2500);
            }

            function renumberRows() {
                Array.from(tbody.querySelectorAll('tr[data-id]')).forEach(function (row, i) {
                    var cell = row.querySelector('.row-number');
                    if (cell) cell.textContent = firstItem + i;
                });
            }

            new Sortable(tbody, {
                handle: '.drag-handle',
                animation: 150,
                ghostClass: 'sortable-ghost',
                chosenClass: 'sortable-chosen',
                onEnd: function () {
                    renumberRows();

                    var ids = Array.from(tbody.querySelectorAll('tr[data-id]'))
                        .map(function (row) { return parseInt(row.dataset.id, 10); })
                        .filter(function (id) { return !isNaN(id); });

                    fetch(url, {
                        method: 'POST',
                        headers: {
                            'Content-Type': 'application/json',
                            'X-CSRF-TOKEN': token,
                            'Accept': 'application/json',
                        },
                        body: JSON.stringify({ ids: ids })
                    })
                    .then(function (res) {
                        if (!res.ok) throw new Error('HTTP ' + res.status);
                        return res.json();
                    })
                    .then(function () { showToast('Đã cập nhật thứ tự.', false); })
                    .catch(function () { showToast('Cập nhật thất bại, vui lòng reload trang.', true); });
                }
            });
        })();
    </script>
@endpush