@page "/notifications"
@using LibraryManagement.Shared.Models
@using BlazorWebAssembly.Services
@inject LibraryApiClient ApiClient
@inject NotificationStateService NotifService
@inject IJSRuntime JS

<PageTitle>Notifications | LibraryLuxe</PageTitle>

<AuthorizeView>
    <Authorized>
        <div class="max-w-4xl mx-auto py-12 px-6 animate-fade">
            <!-- Header -->
            <div class="flex items-center justify-between mb-12">
                <div>
                    <h2 class="text-[10px] font-black text-primary uppercase tracking-[0.3em] mb-2">User Updates</h2>
                    <h1 class="text-4xl font-black tracking-tighter text-main uppercase italic">Notifications</h1>
                </div>
                @if (_notifications.Any(n => !n.IsRead))
                {
                    <button @onclick="MarkAllAsRead" 
                            class="text-[10px] font-black uppercase tracking-widest px-6 py-3 bg-primary/10 text-primary rounded-xl hover:bg-primary hover:text-white transition-all transform hover:scale-105 active:scale-95 shadow-sm">
                        Mark All As Read
                    </button>
                }
            </div>

            @if (_isLoading)
            {
                <div class="space-y-4">
                    @for (int i = 0; i < 4; i++)
                    {
                        <div class="h-24 bg-card rounded-2xl border border-border animate-pulse"></div>
                    }
                </div>
            }
            else if (!_notifications.Any())
            {
                <div class="bg-card rounded-[2.5rem] p-20 text-center border border-border shadow-sm">
                    <div class="w-20 h-20 bg-body rounded-3xl flex items-center justify-center mx-auto mb-6 text-muted border border-border">
                        <svg class="w-8 h-8" fill="none" viewBox="0 0 24 24" stroke="currentColor">
                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 17h5l-1.405-1.405A2.032 2.032 0 0118 14.158V11a6.002 6.002 0 00-4-5.659V5a2 2 0 10-4 0v.341C7.67 6.165 6 8.388 6 11v3.159c0 .538-.214 1.055-.595 1.436L4 17h5m6 0v1a3 3 0 11-6 0v-1m6 0H9" />
                        </svg>
                    </div>
                    <h3 class="text-xl font-black text-main uppercase tracking-tight mb-2">Clean Slate</h3>
                    <p class="text-muted text-sm font-medium">You're all caught up. New updates will appear here.</p>
                </div>
            }
            else
            {
                <div class="grid gap-4">
                    @foreach (var notif in _notifications)
                    {
                        <div @onclick="() => MarkAsRead(notif)" 
                             class="group bg-card rounded-2xl p-6 border border-border hover:border-primary/30 transition-all duration-300 shadow-sm relative overflow-hidden cursor-pointer @(!notif.IsRead ? "bg-primary/[0.02]" : "")">
                            @if (!notif.IsRead)
                            {
                                <div class="absolute left-0 top-0 bottom-0 w-1.5 bg-primary"></div>
                            }
                            
                            <div class="flex gap-6">
                                <div class="flex-shrink-0">
                                    <div class='w-12 h-12 rounded-2xl flex items-center justify-center @GetIconClass(notif.Type) shadow-sm'>
                                        <svg class="w-5 h-5" fill="none" viewBox="0 0 24 24" stroke="currentColor">
                                            @if (notif.Type == "Warning") { <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2.5" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z" /> }
                                            else if (notif.Type == "Info") { <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2.5" d="M13 16h-1v-4h-1m1-4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z" /> }
                                            else { <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2.5" d="M15 17h5l-1.405-1.405A2.032 2.032 0 0118 14.158V11a6.002 6.002 0 00-4-5.659V5a2 2 0 10-4 0v.341C7.67 6.165 6 8.388 6 11v3.159c0 .538-.214 1.055-.595 1.436L4 17h5m6 0v1a3 3 0 11-6 0v-1m6 0H9" /> }
                                        </svg>
                                    </div>
                                </div>
                                
                                <div class="flex-1 min-w-0">
                                    <div class="flex items-start justify-between gap-4 mb-2">
                                        <h4 class="text-sm font-black text-main uppercase tracking-tight @(!notif.IsRead ? "text-primary" : "")">@notif.Title</h4>
                                        <span class="text-[10px] font-black text-muted uppercase tracking-widest whitespace-nowrap">@notif.CreatedAt.ToString("MMM dd, HH:mm")</span>
                                    </div>
                                    <p class="text-sm text-muted font-medium leading-relaxed mb-4">@notif.Message</p>
                                    
                                    @if (!string.IsNullOrEmpty(notif.ActionLink))
                                    {
                                        <a href="@notif.ActionLink" class="inline-flex items-center gap-2 text-[10px] font-black text-primary uppercase tracking-[0.2em] hover:gap-4 transition-all">
                                            @notif.ActionText
                                            <svg class="w-3 h-3" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="3" d="M14 5l7 7m0 0l-7 7m7-7H3"/></svg>
                                        </a>
                                    }
                                </div>
                            </div>
                        </div>
                    }
                </div>
            }
        </div>
    </Authorized>
    <NotAuthorized>
        <div class="min-h-[60vh] flex flex-col items-center justify-center px-6 text-center">
            <h2 class="text-4xl font-black text-main uppercase tracking-tighter mb-6">Identity Required</h2>
            <p class="text-muted max-w-md mb-10 font-medium leading-relaxed">Please sign in to your LibraryLuxe account to access your personal updates and notifications.</p>
            <a href="/login" class="bg-primary text-white px-10 py-4 rounded-2xl text-[10px] font-black uppercase tracking-[0.3em] hover:bg-primary-hover shadow-xl shadow-primary/20 transition-all transform hover:scale-105 active:scale-95">Sign In Now</a>
        </div>
    </NotAuthorized>
</AuthorizeView>

@code {
    private List<NotificationDto> _notifications = new();
    private bool _isLoading = true;

    protected override async Task OnInitializedAsync()
    {
        await LoadNotifications();
    }

    private async Task LoadNotifications()
    {
        try
        {
            _isLoading = true;
            _notifications = (await ApiClient.GetNotificationsAsync()).ToList();
        }
        catch (Exception ex)
        {
            Console.WriteLine($"Error: {ex.Message}");
        }
        finally
        {
            _isLoading = false;
        }
    }

    private async Task MarkAllAsRead()
    {
        try
        {
            var success = await ApiClient.MarkNotificationsReadAsync();
            if (success) 
            {
                NotifService.SetUnreadCount(0);
                await LoadNotifications();
            }
        }
        catch (Exception ex)
        {
            Console.WriteLine($"Error: {ex.Message}");
        }
    }

    private async Task MarkAsRead(NotificationDto notif)
    {
        if (notif.IsRead) return;

        try
        {
            var success = await ApiClient.MarkAsReadAsync(notif.Id);
            if (success)
            {
                notif.IsRead = true;
                NotifService.DecrementCount();
                StateHasChanged();
            }
        }
        catch (Exception ex)
        {
            Console.WriteLine($"Error: {ex.Message}");
        }
    }

    private string GetIconClass(string type) => type switch
    {
        "Warning" => "bg-orange-500/10 text-orange-500",
        "Info" => "bg-blue-500/10 text-blue-500",
        _ => "bg-primary/10 text-primary"
    };
}