@extends('layouts.app')

@section('content')
    <div id="page-container" class="fade page-sidebar-fixed page-header-fixed page-with-wide-sidebar">
        @include('partials.header')
        @include('partials.sidebar')

        <div id="content" class="content">
            <ol class="breadcrumb float-xl-right">
                <li class="breadcrumb-item"><a href="javascript:;">Home</a></li>
                <li class="breadcrumb-item"><a href="javascript:;">Marketing</a></li>
                <li class="breadcrumb-item active">Promotion Info</li>
            </ol>

            <h1 class="page-header">Promotion Info</h1>

            <div class="panel panel-inverse">
                <div class="panel-heading">
                    <div class="panel-heading-btn">
                        <a href="{{ route('promotion_infos.create') }}" class="btn btn-custom">
                            <i class="fa fa-plus"></i> Add Promotion Info
                        </a>
                    </div>
                </div>
                <div class="panel-body">
                    @if (session('success'))
                        <div class="alert alert-success alert-dismissible fade show" role="alert">
                            {{ session('success') }}
                            <button type="button" class="close" data-dismiss="alert" aria-label="Close">
                                <span aria-hidden="true">&times;</span>
                            </button>
                        </div>
                    @endif

                    @if (session('error') || $errors->any())
                        <div class="alert alert-danger alert-dismissible fade show" role="alert">
                            @if (session('error'))
                                {{ session('error') }}
                            @endif
                            @foreach ($errors->all() as $error)
                                <div>{{ $error }}</div>
                            @endforeach
                            <button type="button" class="close" data-dismiss="alert" aria-label="Close">
                                <span aria-hidden="true">&times;</span>
                            </button>
                        </div>
                    @endif

                    @if ($promotionInfos->count() > 0)
                        <div class="table-responsive">
                            <!-- FIXED: Added id="data-table-default" for search functionality -->
                            <table id="data-table-default"
                                class="table table-striped table-bordered table-td-valign-middle">
                                <thead>
                                    <tr>
                                        <th width="5%">#</th>
                                        <th width="55%">Content</th>
                                        <th width="10%">Status</th>
                                        <th width="15%">Last Updated</th>
                                        <th width="15%">Actions</th>
                                    </tr>
                                </thead>
                                <tbody>
                                    @foreach ($promotionInfos as $info)
                                        <tr>
                                            <td>{{ $loop->iteration }}</td>
                                            <td>
                                                <div class="text-truncate" style="max-width: 400px;"
                                                    title="{{ strip_tags($info->content) }}">
                                                    {{ Str::limit(strip_tags($info->content), 120) }}
                                                </div>
                                                @if (!$info->is_active)
                                                    <small class="text-muted d-block">(Inactive)</small>
                                                @endif
                                            </td>
                                            <td>
                                                <div class="switcher">
                                                    <input type="checkbox" name="active_status"
                                                        id="switcher_checkbox_{{ $info->id }}"
                                                        {{ $info->is_active ? 'checked' : '' }}
                                                        onchange="updateActiveStatus({{ $info->id }}, this.checked)"
                                                        data-info-id="{{ $info->id }}">
                                                    <label for="switcher_checkbox_{{ $info->id }}"></label>
                                                </div>
                                            </td>
                                            <td>{{ $info->updated_at->format('M d, Y H:i') }}</td>
                                            <td>
                                                <div class="btn-group btn-group-sm" role="group">
                                                    <a href="{{ route('promotion_infos.edit', $info->id) }}"
                                                        class="btn btn-custom" title="Edit">
                                                        <i class="fa fa-edit"></i>
                                                    </a>
                                                    <button type="button" class="btn btn-custom delete-info"
                                                        data-id="{{ $info->id }}"
                                                        data-title="{{ Str::limit(strip_tags($info->content), 30) }}"
                                                        title="Delete">
                                                        <i class="fa fa-trash"></i>
                                                    </button>
                                                </div>
                                            </td>
                                        </tr>
                                    @endforeach
                                </tbody>
                            </table>
                        </div>
                    @else
                        <div class="text-center py-5">
                            <div class="text-muted">
                                <i class="fa fa-info-circle fa-3x mb-3"></i>
                                <h5>No promotion info found</h5>
                                <p>Create your first promotion info to display a subheader in the app.</p>
                                <a href="{{ route('promotion_infos.create') }}" class="btn btn-custom">
                                    <i class="fa fa-plus"></i> Create First Promotion Info
                                </a>
                            </div>
                        </div>
                    @endif
                </div>
            </div>
        </div>
    </div>

    <!-- Delete Confirmation Modal -->
    <div class="modal fade" id="deleteModal" tabindex="-1" role="dialog">
        <div class="modal-dialog" role="document">
            <div class="modal-content">
                <div class="modal-header">
                    <h5 class="modal-title">Confirm Delete</h5>
                    <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                        <span aria-hidden="true">&times;</span>
                    </button>
                </div>
                <div class="modal-body">
                    <p>Are you sure you want to delete the promotion info "<span id="delete-info-title"></span>"?</p>
                    <p class="text-danger">This action cannot be undone.</p>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-secondary" data-dismiss="modal">Cancel</button>
                    <form id="delete-form" method="POST" style="display: inline;">
                        @csrf
                        @method('DELETE')
                        <button type="submit" class="btn btn-danger">Delete</button>
                    </form>
                </div>
            </div>
        </div>
    </div>

    <script>
        document.addEventListener('DOMContentLoaded', function() {
            const csrfToken = document.querySelector('meta[name="csrf-token"]').getAttribute('content');
            let activeRequests = new Set();

            // Initialize delete functionality
            initializeDeleteFunctionality();

            // Auto-dismiss alerts after 5 seconds
            setTimeout(() => {
                document.querySelectorAll('.alert:not(.alert-temp)').forEach(alert => {
                    if (alert.parentNode) {
                        alert.remove();
                    }
                });
            }, 5000);

            function initializeDeleteFunctionality() {
                document.querySelectorAll('.delete-info').forEach(button => {
                    button.addEventListener('click', function() {
                        const infoId = this.dataset.id;
                        const infoTitle = this.dataset.title;

                        document.getElementById('delete-info-title').textContent = infoTitle;
                        document.getElementById('delete-form').action =
                            `{{ url('promotion_infos') }}/${infoId}`;

                        $('#deleteModal').modal('show');
                    });
                });
            }
        });

        /**
         * Update active status via AJAX - Standardized function
         */
        function updateActiveStatus(id, isActive) {
            const requestKey = `toggle_${id}`;
            const activeRequests = window.activeRequests || new Set();

            // Prevent concurrent requests for the same item
            if (activeRequests.has(requestKey)) {
                return;
            }
            activeRequests.add(requestKey);

            // Get checkbox element
            const checkbox = document.getElementById(`switcher_checkbox_${id}`);
            if (!checkbox) {
                activeRequests.delete(requestKey);
                return;
            }

            // Disable the checkbox during the request
            checkbox.disabled = true;

            // Optimistically update UI if activating
            if (isActive) {
                document.querySelectorAll('input[name="active_status"]').forEach(cb => {
                    if (cb.id !== checkbox.id) {
                        cb.checked = false;
                    }
                });
            }

            // Prepare request data
            const formData = new FormData();
            formData.append('is_active', isActive ? 1 : 0);

            // Send AJAX request
            fetch(`{{ url('promotion_infos') }}/${id}/toggle-active`, {
                    method: 'POST',
                    headers: {
                        'X-CSRF-TOKEN': document.querySelector('meta[name="csrf-token"]').getAttribute('content'),
                        'Accept': 'application/json',
                    },
                    body: formData
                })
                .then(response => {
                    if (!response.ok) {
                        throw new Error(`HTTP ${response.status}: ${response.statusText}`);
                    }
                    return response.json();
                })
                .then(data => {
                    if (data.success) {
                        // Show success message
                        showMessage(data.message || 'Status updated successfully', 'success');

                        // Ensure UI state matches server state
                        checkbox.checked = data.is_active !== undefined ? data.is_active : isActive;

                        // If this item was activated, ensure others are deactivated
                        if (data.is_active) {
                            document.querySelectorAll('input[name="active_status"]').forEach(cb => {
                                if (cb.id !== checkbox.id) {
                                    cb.checked = false;
                                }
                            });
                        }
                    } else {
                        throw new Error(data.message || 'Unknown error occurred');
                    }
                })
                .catch(error => {
                    console.error('Toggle error:', error);

                    // Revert the checkbox state
                    checkbox.checked = !isActive;

                    // Revert other checkboxes if this was an activation attempt
                    if (isActive) {
                        // We need to restore the previous state - reload for consistency
                        location.reload();
                        return;
                    }

                    // Show error message
                    const errorMessage = error.message || 'An error occurred while updating status';
                    showMessage(errorMessage, 'error');
                })
                .finally(() => {
                    // Re-enable the checkbox and clean up
                    checkbox.disabled = false;
                    activeRequests.delete(requestKey);
                    window.activeRequests = activeRequests;
                });
        }

        /**
         * Show message to user
         */
        function showMessage(message, type) {
            // Remove any existing temporary alerts
            const existingAlerts = document.querySelectorAll('.alert-temp');
            existingAlerts.forEach(alert => alert.remove());

            // Create new alert
            const alertClass = type === 'success' ? 'alert-success' : 'alert-danger';
            const iconClass = type === 'success' ? 'fa-check-circle' : 'fa-exclamation-triangle';

            const alertHtml = `
                <div class="alert ${alertClass} alert-dismissible fade show alert-temp" role="alert">
                    <i class="fa ${iconClass} mr-2"></i>
                    ${escapeHtml(message)}
                    <button type="button" class="close" data-dismiss="alert" aria-label="Close">
                        <span aria-hidden="true">&times;</span>
                    </button>
                </div>
            `;

            // Insert at the top of panel-body
            const panelBody = document.querySelector('.panel-body');
            if (panelBody) {
                panelBody.insertAdjacentHTML('afterbegin', alertHtml);
            }

            // Auto-dismiss after 5 seconds
            setTimeout(() => {
                const tempAlert = document.querySelector('.alert-temp');
                if (tempAlert) {
                    tempAlert.remove();
                }
            }, 5000);
        }

        /**
         * Escape HTML to prevent XSS
         */
        function escapeHtml(unsafe) {
            return unsafe
                .replace(/&/g, "&amp;")
                .replace(/</g, "&lt;")
                .replace(/>/g, "&gt;")
                .replace(/"/g, "&quot;")
                .replace(/'/g, "&#039;");
        }
    </script>

    <style>
        .btn-group .btn {
            margin-right: 2px;
        }

        .table td {
            vertical-align: middle;
        }

        .text-truncate {
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .alert-temp {
            animation: slideIn 0.3s ease-out;
        }

        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateY(-20px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .switcher input[type="checkbox"]:disabled {
            opacity: 0.6;
            cursor: not-allowed;
        }

        /* Loading state for switchers */
        .switcher.loading {
            opacity: 0.7;
            position: relative;
        }

        .switcher.loading::after {
            content: '';
            position: absolute;
            top: 2px;
            right: 2px;
            width: 8px;
            height: 8px;
            border: 1px solid #ccc;
            border-top-color: #007bff;
            border-radius: 50%;
            animation: spin 0.6s linear infinite;
        }

        @keyframes spin {
            to {
                transform: rotate(360deg);
            }
        }
    </style>
@endsection