@model IEnumerable<LittleShop.Models.PushSubscription>
@{
    ViewData["Title"] = "Push Subscriptions";
}

<div class="row mb-3">
    <div class="col">
        <nav aria-label="breadcrumb">
            <ol class="breadcrumb">
                <li class="breadcrumb-item"><a href="@Url.Action("Index", "Dashboard")">Dashboard</a></li>
                <li class="breadcrumb-item active">Push Subscriptions</li>
            </ol>
        </nav>
    </div>
</div>

<div class="row mb-3">
    <div class="col-md-8">
        <h1><i class="fas fa-bell"></i> Push Subscriptions</h1>
        <p class="text-muted mb-0">Manage browser push notification subscriptions for admins and customers</p>
    </div>
    <div class="col-md-4 text-end">
        <form method="post" action="@Url.Action("CleanupExpired")" class="d-inline">
            @Html.AntiForgeryToken()
            <button type="submit" class="btn btn-warning"
                    onclick="return confirm('Remove all inactive and expired subscriptions?')">
                <i class="fas fa-broom"></i> Cleanup Expired
            </button>
        </form>
    </div>
</div>

<!-- Statistics Cards -->
<div class="row mb-4">
    <div class="col-md-3">
        <div class="card border-primary">
            <div class="card-body">
                <h6 class="text-muted mb-2">Total Subscriptions</h6>
                <h3 class="mb-0">@Model.Count()</h3>
            </div>
        </div>
    </div>
    <div class="col-md-3">
        <div class="card border-success">
            <div class="card-body">
                <h6 class="text-muted mb-2">Active</h6>
                <h3 class="mb-0 text-success">@Model.Count(s => s.IsActive)</h3>
            </div>
        </div>
    </div>
    <div class="col-md-3">
        <div class="card border-info">
            <div class="card-body">
                <h6 class="text-muted mb-2">Admin Users</h6>
                <h3 class="mb-0">@Model.Count(s => s.UserId.HasValue)</h3>
            </div>
        </div>
    </div>
    <div class="col-md-3">
        <div class="card border-warning">
            <div class="card-body">
                <h6 class="text-muted mb-2">Customers</h6>
                <h3 class="mb-0">@Model.Count(s => s.CustomerId.HasValue)</h3>
            </div>
        </div>
    </div>
</div>

<!-- Subscriptions Table -->
@if (Model.Any())
{
    <div class="card">
        <div class="card-header bg-light">
            <h5 class="mb-0"><i class="fas fa-list"></i> Subscription List</h5>
        </div>
        <div class="card-body p-0">
            <div class="table-responsive">
                <table class="table table-hover mb-0">
                    <thead class="table-light">
                        <tr>
                            <th style="width: 5%;">ID</th>
                            <th style="width: 15%;">Type</th>
                            <th style="width: 20%;">Endpoint</th>
                            <th style="width: 15%;">Subscribed</th>
                            <th style="width: 15%;">Last Used</th>
                            <th style="width: 15%;">Browser/Device</th>
                            <th style="width: 8%;">Status</th>
                            <th class="text-center" style="width: 7%;">Actions</th>
                        </tr>
                    </thead>
                    <tbody>
                        @foreach (var subscription in Model)
                        {
                            var daysInactive = subscription.LastUsedAt.HasValue
                                ? (DateTime.UtcNow - subscription.LastUsedAt.Value).Days
                                : (DateTime.UtcNow - subscription.SubscribedAt).Days;

                            var statusClass = subscription.IsActive
                                ? (daysInactive > 90 ? "warning" : "success")
                                : "danger";

                            <tr>
                                <td><code>@subscription.Id</code></td>
                                <td>
                                    @if (subscription.UserId.HasValue)
                                    {
                                        <span class="badge bg-info">
                                            <i class="fas fa-user-shield"></i> Admin User
                                        </span>
                                        @if (subscription.User != null)
                                        {
                                            <br><small class="text-muted">@subscription.User.Username</small>
                                        }
                                    }
                                    else if (subscription.CustomerId.HasValue)
                                    {
                                        <span class="badge bg-warning">
                                            <i class="fas fa-user"></i> Customer
                                        </span>
                                        @if (subscription.Customer != null)
                                        {
                                            <br><small class="text-muted">@subscription.Customer.TelegramDisplayName</small>
                                        }
                                    }
                                    else
                                    {
                                        <span class="badge bg-secondary">
                                            <i class="fas fa-question"></i> Unknown
                                        </span>
                                    }
                                </td>
                                <td>
                                    <small class="font-monospace text-break"
                                           data-bs-toggle="tooltip"
                                           title="@subscription.Endpoint">
                                        @(subscription.Endpoint.Length > 40 ? subscription.Endpoint.Substring(0, 40) + "..." : subscription.Endpoint)
                                    </small>
                                    @if (!string.IsNullOrEmpty(subscription.IpAddress))
                                    {
                                        <br><span class="badge bg-secondary"><i class="fas fa-network-wired"></i> @subscription.IpAddress</span>
                                    }
                                </td>
                                <td>
                                    @subscription.SubscribedAt.ToString("MMM dd, yyyy")
                                    <br><small class="text-muted">@subscription.SubscribedAt.ToString("HH:mm")</small>
                                </td>
                                <td>
                                    @if (subscription.LastUsedAt.HasValue)
                                    {
                                        @subscription.LastUsedAt.Value.ToString("MMM dd, yyyy")
                                        <br><small class="text-muted">@subscription.LastUsedAt.Value.ToString("HH:mm")</small>

                                        @if (daysInactive > 0)
                                        {
                                            <br><span class="badge bg-@(daysInactive > 90 ? "danger" : daysInactive > 30 ? "warning" : "info")">
                                                @daysInactive days ago
                                            </span>
                                        }
                                    }
                                    else
                                    {
                                        <span class="text-muted">Never</span>
                                    }
                                </td>
                                <td>
                                    @if (!string.IsNullOrEmpty(subscription.UserAgent))
                                    {
                                        var ua = subscription.UserAgent;
                                        var browser = ua.Contains("Chrome") ? "Chrome" :
                                                    ua.Contains("Firefox") ? "Firefox" :
                                                    ua.Contains("Safari") ? "Safari" :
                                                    ua.Contains("Edge") ? "Edge" : "Unknown";
                                        var os = ua.Contains("Windows") ? "Windows" :
                                                ua.Contains("Mac") ? "macOS" :
                                                ua.Contains("Linux") ? "Linux" :
                                                ua.Contains("Android") ? "Android" :
                                                ua.Contains("iOS") ? "iOS" : "Unknown";

                                        <span class="badge bg-secondary">@browser</span>
                                        <span class="badge bg-dark">@os</span>
                                        <br><small class="text-muted"
                                                   data-bs-toggle="tooltip"
                                                   title="@subscription.UserAgent">
                                            @(ua.Length > 30 ? ua.Substring(0, 30) + "..." : ua)
                                        </small>
                                    }
                                    else
                                    {
                                        <span class="text-muted">Not available</span>
                                    }
                                </td>
                                <td class="text-center">
                                    <span class="badge bg-@statusClass">
                                        @if (subscription.IsActive)
                                        {
                                            <i class="fas fa-check-circle"></i> <text>Active</text>
                                        }
                                        else
                                        {
                                            <i class="fas fa-times-circle"></i> <text>Inactive</text>
                                        }
                                    </span>
                                </td>
                                <td class="text-center">
                                    <form method="post" action="@Url.Action("Delete", new { id = subscription.Id })" class="d-inline">
                                        @Html.AntiForgeryToken()
                                        <button type="submit"
                                                class="btn btn-sm btn-danger"
                                                onclick="return confirm('Are you sure you want to delete this push subscription?')"
                                                title="Delete Subscription">
                                            <i class="fas fa-trash"></i>
                                        </button>
                                    </form>
                                </td>
                            </tr>
                        }
                    </tbody>
                </table>
            </div>
        </div>
    </div>
}
else
{
    <div class="alert alert-info">
        <i class="fas fa-info-circle"></i>
        <strong>No push subscriptions yet</strong>
        <p class="mb-0">Push notification subscriptions will appear here when users enable browser notifications.</p>
    </div>
}

<!-- Information Card -->
<div class="row mt-4">
    <div class="col">
        <div class="card border-info">
            <div class="card-header bg-info text-white">
                <h6 class="mb-0"><i class="fas fa-info-circle"></i> About Push Subscriptions</h6>
            </div>
            <div class="card-body">
                <ul class="mb-0">
                    <li><strong>Active Status:</strong> Subscriptions marked as active can receive push notifications</li>
                    <li><strong>IP Address Storage:</strong> IP addresses are stored for security and duplicate detection purposes</li>
                    <li><strong>Cleanup:</strong> Expired subscriptions (inactive for >90 days) can be removed using the cleanup button</li>
                    <li><strong>User Agent:</strong> Browser and device information helps identify subscription sources</li>
                    <li><strong>Privacy:</strong> Subscription data contains encryption keys required for Web Push API</li>
                </ul>
            </div>
        </div>
    </div>
</div>

@section Scripts {
    <script>
        // Initialize Bootstrap tooltips
        var tooltipTriggerList = [].slice.call(document.querySelectorAll('[data-bs-toggle="tooltip"]'))
        var tooltipList = tooltipTriggerList.map(function (tooltipTriggerEl) {
            return new bootstrap.Tooltip(tooltipTriggerEl)
        });
    </script>
}