@using SZUAbsolventenverein.Module.PremiumArea.Services
@using Oqtane.Models
@namespace SZUAbsolventenverein.Module.PremiumArea
@inherits ModuleBase
@inject IUserContactService ContactService
@inject NavigationManager NavigationManager

@if (Oqtane.Security.UserSecurity.IsAuthorized(PageState.User, RoleNames.Admin) || Oqtane.Security.UserSecurity.IsAuthorized(PageState.User, "Premium Member"))
{
    <h3>Mitglieder Suche</h3>

    <div class="input-group mb-3">
        <input type="text" class="form-control" placeholder="Mitglieder suchen (min 3 Zeichen)..." @bind="_query" @onkeyup="@(e => { if (e.Key == "Enter") Search(); })" />
        <button class="btn btn-primary" @onclick="Search">Suchen</button>
    </div>

    @if (_searchResults != null)
    {
        @if (_searchResults.Count == 0)
        {
            <p class="text-muted">Keine Mitglieder gefunden.</p>
        }
        else
        {
            <ul class="list-group">
                @foreach (var user in _searchResults)
                {
                    <li class="list-group-item d-flex justify-content-between align-items-center">
                        <span>
                            <strong>@user.DisplayName</strong> <small class="text-muted">(@user.Username)</small>
                        </span>
                        <button class="btn btn-sm btn-outline-info" @onclick="@(() => InitContact(user))">Kontaktieren</button>
                    </li>
                }
            </ul>
        }
    }

    @if (_selectedUser != null)
    {
        <div class="card mt-4">
            <div class="card-header">Nachricht an: @_selectedUser.DisplayName</div>
            <div class="card-body">
                <div class="mb-3">
                    <label>Nachricht</label>
                    <textarea class="form-control" rows="3" @bind="_messageBody"></textarea>
                </div>
                <button class="btn btn-primary" @onclick="Send">Nachricht senden</button>
                <button class="btn btn-secondary" @onclick="@(() => _selectedUser = null)">Abbrechen</button>

                @if (!string.IsNullOrEmpty(_statusMsg))
                {
                    <div class="alert alert-info mt-2">@_statusMsg</div>
                }
            </div>
        </div>
    }
}
else
{
    <div class="alert alert-warning">
        Sie müssen Premium Kunde sein um diese Funktion zu nutzen.
    </div>
}

@code {
    public override SecurityAccessLevel SecurityAccessLevel => SecurityAccessLevel.View;

    private string _query;
    private List<User> _searchResults;
    private User _selectedUser;
    private string _messageBody;
    private string _statusMsg;

    private async Task Search()
    {
        if (string.IsNullOrWhiteSpace(_query) || _query.Length < 3) return;
        _searchResults = await ContactService.SearchUsersAsync(_query, ModuleState.ModuleId);
        _selectedUser = null;
    }

    private void InitContact(User user)
    {
        _selectedUser = user;
        _messageBody = "";
        _statusMsg = "";
    }

    private async Task Send()
    {
        if (string.IsNullOrWhiteSpace(_messageBody)) return;
        
        try
        {
            await ContactService.SendMessageAsync(_selectedUser.UserId, _messageBody, ModuleState.ModuleId);
            _statusMsg = "Message Sent Successully!";
            // Reset after delay or allow closing
            await Task.Delay(2000);
            _selectedUser = null;
            StateHasChanged(); 
        }
        catch (Exception ex)
        {
            _statusMsg = "Error sending message: " + ex.Message;
        }
    }
}