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

<h3>Ingenieur-Anträge Prüfen</h3>

@if (_applications == null)
{
    <p>Laden...</p>
}
else
{
    <div class="row">
        <div class="col-md-7">
            <div class="mb-3">
                <div class="btn-group" role="group">
                    <input type="radio" class="btn-check" name="statusfilter" id="filterValidation" autocomplete="off" checked="@(_filterStatus == "Validation")" @onchange="@(() => _filterStatus = "Validation")">
                    <label class="btn btn-outline-primary" for="filterValidation">Validierung (Entwurf/Eingereicht)</label>

                    <input type="radio" class="btn-check" name="statusfilter" id="filterApproved" autocomplete="off" checked="@(_filterStatus == "Approved")" @onchange="@(() => _filterStatus = "Approved")">
                    <label class="btn btn-outline-success" for="filterApproved">Genehmigt</label>

                    <input type="radio" class="btn-check" name="statusfilter" id="filterRejected" autocomplete="off" checked="@(_filterStatus == "Rejected")" @onchange="@(() => _filterStatus = "Rejected")">
                    <label class="btn btn-outline-danger" for="filterRejected">Abgelehnt</label>

                    <input type="radio" class="btn-check" name="statusfilter" id="filterReported" autocomplete="off" checked="@(_filterStatus == "Reported")" @onchange="@(() => _filterStatus = "Reported")">
                    <label class="btn btn-outline-warning" for="filterReported">Gemeldet</label>
                </div>
            </div>

            @if (FilteredApplications.Count == 0)
            {
                <p>Keine Anträge gefunden.</p>
            }
            else
            {
                <table class="table table-striped table-hover">
                    <thead>
                        <tr>
                            <th>Benutzer ID</th>
                            <th>Dateiname</th>
                            <th>Datum</th>
                            <th>Status</th>
                            @if (_filterStatus == "Reported")
                            {
                                <th>Meldegrund</th>
                            }
                            <th>Aktionen</th>
                        </tr>
                    </thead>
                    <tbody>
                        @foreach (var app in FilteredApplications)
                        {
                            <tr @onclick="@(() => SelectApp(app))" style="cursor: pointer;" class="@(_selectedApp == app ? "table-active" : "")">
                                <td>@app.UserId</td>
                                <td>@app.PdfFileName</td>
                                <td>@(app.SubmittedOn?.ToShortDateString() ?? app.CreatedOn.ToShortDateString())</td>
                                <td>
                                    @app.Status
                                    @if(app.IsReported) { <span class="badge bg-warning text-dark">Gemeldet</span> }
                                </td>
                                @if (_filterStatus == "Reported")
                                {
                                    <td class="text-danger">@app.ReportReason</td>
                                }
                                <td>
                                    <button class="btn btn-sm btn-primary" @onclick="@((e) => SelectApp(app))">Prüfen</button>
                                </td>
                            </tr>
                        }
                    </tbody>
                </table>
            }
        </div>
        <div class="col-md-5">
            @if (_selectedApp != null)
            {
                <div class="card">
                    <div class="card-header">
                        Antragsdetails
                    </div>
                    <div class="card-body">
                        <dl class="row">
                            <dt class="col-sm-4">Benutzer ID</dt>
                            <dd class="col-sm-8">@_selectedApp.UserId</dd>
                            <dt class="col-sm-4">Datei</dt>
                            <dd class="col-sm-8">@_selectedApp.PdfFileName</dd>
                            <dt class="col-sm-4">Status</dt>
                            <dd class="col-sm-8">@_selectedApp.Status</dd>
                            @if (_selectedApp.IsReported)
                            {
                                <dt class="col-sm-4 text-danger">Meldegrund</dt>
                                <dd class="col-sm-8 text-danger">@_selectedApp.ReportReason (Anzahl: @_selectedApp.ReportCount)</dd>
                            }
                        </dl>
                        
                        <div class="mb-3">
                             <div class="ratio ratio-16x9">
                                <iframe src="@((NavManager.BaseUri + "api/engineerapplication") + "/download/" + _selectedApp.ApplicationId + "?moduleid=" + ModuleState.ModuleId)" allowfullscreen></iframe>
                            </div>
                        </div>

                        <div class="d-grid gap-2">
                            @if (_selectedApp.Status != "Approved" || _selectedApp.IsReported)
                            {
                                <button class="btn @(_selectedApp.IsReported ? "btn-warning" : "btn-success")" @onclick="ApproveApp">
                                    @(_selectedApp.IsReported ? "Meldung verwerfen / Behalten" : "Genehmigen & Premium gewähren")
                                </button>
                            }
                            @if (_selectedApp.Status != "Rejected")
                            {
                                <button class="btn btn-danger" @onclick="RejectApp">Ablehnen / Löschen</button>
                            }
                        </div>
                    </div>
                </div>
            }
        </div>
    </div>
}

@code {
    public override SecurityAccessLevel SecurityAccessLevel => SecurityAccessLevel.Edit; // Admin Only

    private List<EngineerApplication> _applications;
    private EngineerApplication _selectedApp;
    private string _filterStatus = "Validation";

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

    private async Task LoadApps()
    {
        // Load All applications
        _applications = await ApplicationService.GetApplicationsAsync(ModuleState.ModuleId);
    }

    private List<EngineerApplication> FilteredApplications
    {
        get
        {
            if (_applications == null) return new List<EngineerApplication>();
            if (_filterStatus == "Validation")
                return _applications.Where(a => a.Status == "Draft" || a.Status == "Submitted" || a.Status == "Published").ToList();
            
            if (_filterStatus == "Reported")
                return _applications.Where(a => a.IsReported).ToList();
            
            return _applications.Where(a => a.Status == _filterStatus).ToList();
        }
    }

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

    private async Task ApproveApp()
    {
        if (_selectedApp == null) return;
        await ApplicationService.ApproveApplicationAsync(_selectedApp.ApplicationId, ModuleState.ModuleId);
        await LoadApps();
        _selectedApp = null;
    }

    private async Task RejectApp()
    {
        if (_selectedApp == null) return;
        // Basic rejection without custom reason for now since UI input was removed
        await ApplicationService.RejectApplicationAsync(_selectedApp.ApplicationId, ModuleState.ModuleId, "Abgelehnt durch Admin");
        await LoadApps();
        _selectedApp = null;
    }
}