@using SZUAbsolventenverein.Module.PremiumArea.Services
@using SZUAbsolventenverein.Module.PremiumArea.Models
@namespace SZUAbsolventenverein.Module.PremiumArea
@inherits ModuleBase
@inject IEngineerApplicationService ApplicationService
@inject NavigationManager NavManager

@if (Oqtane.Security.UserSecurity.IsAuthorized(PageState.User, RoleNames.Admin) || Oqtane.Security.UserSecurity.IsAuthorized(PageState.User, "Premium Member"))
{
    <h3>Genehmigte Ingenieur-Anträge</h3>

    @if (_applications == null)
    {
        <p>Prüfe Premium-Zugang...</p>
    }
    else if (_applications.Count == 0)
    {
        <div class="alert alert-warning">
            Keine genehmigten Anträge gefunden.
        </div>
    }
    else
    {
        <div class="row">
        @foreach (var app in _applications)
        {
            <div class="col-md-4 mb-3">
                <div class="card h-100">
                    <div class="card-body">
                        <h5 class="card-title">Ingenieur-Antrag</h5>
                        <h6 class="card-subtitle mb-2 text-muted">Benutzer ID: @app.UserId</h6>
                        <p class="card-text">
                            <strong>Datei:</strong> @app.PdfFileName<br/>
                            <strong>Status:</strong> <span class="badge bg-success">@app.Status</span><br/>
                            <strong>Datum:</strong> @(app.ApprovedOn?.ToShortDateString() ?? app.CreatedOn.ToShortDateString())
                        </p>
                        <div class="d-flex gap-2">
                            <button class="btn btn-primary btn-sm" @onclick="@(async () => ShowDetail(app))">PDF ansehen</button>
                            <a href="@((NavManager.BaseUri + "api/engineerapplication") + "/download/" + app.ApplicationId + "?moduleid=" + ModuleState.ModuleId)" target="_blank" class="btn btn-outline-secondary btn-sm">Herunterladen</a>
                            <button class="btn btn-outline-danger btn-sm" @onclick="@(() => InitReport(app))">Melden</button>
                        </div>
                    </div>
                </div>
            </div>
        }
        </div>
    }
}
else
{
    <div class="alert alert-warning">
        Sie müssen Premium Kunde sein um diese Funktion zu nutzen.
    </div>
}

@if (_selectedApp != null)
{
    <div class="modal d-block" tabindex="-1">
      <div class="modal-dialog modal-lg">
        <div class="modal-content">
          <div class="modal-header">
            <h5 class="modal-title">Antrags-PDF (@_selectedApp.PdfFileName)</h5>
            <button type="button" class="btn-close" @onclick="@(() => _selectedApp = null)"></button>
          </div>
          <div class="modal-body p-0">
             <div class="ratio ratio-16x9" style="min-height: 500px;">
                <iframe src="@((NavManager.BaseUri + "api/engineerapplication") + "/download/" + _selectedApp.ApplicationId + "?moduleid=" + ModuleState.ModuleId)" allowfullscreen></iframe>
            </div>
          </div>
          <div class="modal-footer">
             <button type="button" class="btn btn-secondary" @onclick="@(() => _selectedApp = null)">Schließen</button>
          </div>
        </div>
      </div>
    </div>
    <div class="modal-backdrop fade show"></div>
}

@if (_reportApp != null)
{
    <div class="modal d-block" tabindex="-1">
      <div class="modal-dialog">
        <div class="modal-content">
          <div class="modal-header">
            <h5 class="modal-title">Antrag melden</h5>
            <button type="button" class="btn-close" @onclick="@(() => _reportApp = null)"></button>
          </div>
          <div class="modal-body">
            <p>Bitte geben Sie einen Grund an, warum Sie diesen Antrag melden (Benutzer ID: @_reportApp.UserId, Datei: @_reportApp.PdfFileName).</p>
            <textarea class="form-control" rows="3" @bind="_reportReason" placeholder="Grund..."></textarea>
          </div>
          <div class="modal-footer">
             <button type="button" class="btn btn-secondary" @onclick="@(() => _reportApp = null)">Abbrechen</button>
             <button type="button" class="btn btn-danger" @onclick="SubmitReport">Meldung absenden</button>
          </div>
        </div>
      </div>
    </div>
    <div class="modal-backdrop fade show"></div>
}

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

    private List<EngineerApplication> _applications;
    private EngineerApplication _selectedApp;
    private EngineerApplication _reportApp;
    private string _reportReason;

    protected override async Task OnInitializedAsync()
    {
        try
        {
            var published = await ApplicationService.GetApplicationsAsync(ModuleState.ModuleId, "Published");
            var approved = await ApplicationService.GetApplicationsAsync(ModuleState.ModuleId, "Approved");
            
            _applications = new List<EngineerApplication>();
            if (published != null) _applications.AddRange(published);
            if (approved != null) _applications.AddRange(approved);
            
            _applications = _applications.GroupBy(a => a.ApplicationId).Select(g => g.First()).ToList();
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.Message);
            _applications = null;
        }
    }

    private void ShowDetail(EngineerApplication app)
    {
        _selectedApp = app;
    }

    private void InitReport(EngineerApplication app)
    {
        _reportApp = app;
        _reportReason = "";
    }

    private async Task SubmitReport()
    {
        if (_reportApp == null || string.IsNullOrWhiteSpace(_reportReason)) return;

        try
        {
            await ApplicationService.ReportApplicationAsync(_reportApp.ApplicationId, ModuleState.ModuleId, _reportReason);
            _reportApp = null;
            AddModuleMessage("Antrag erfolgreich gemeldet.", MessageType.Success);
        }
        catch (Exception ex)
        {
            AddModuleMessage("Fehler beim Melden: " + ex.Message, MessageType.Error);
        }
    }
}