QR-Scanner: Kamera-Fallbacks und Foto-Upload; weitere Aenderungen

Lagerbestand/Components/Pages/Customers.razor

@@ -3,6 +3,7 @@
 @inject ICustomerService CustomerService
 @inject ITireStackService TireStackService
 @inject ILexwareSyncService LexwareSyncService
+@inject ICustomerMergeService CustomerMergeService
 @inject ISiteSettingsService SiteSettingsService
 @inject UserSessionService UserSession
 @inject IJSRuntime JS
@@ -187,6 +188,12 @@ else
                                 <button class="btn btn-sm btn-outline" @onclick="() => EditCustomer(customer)">
                                     Bearbeiten
                                 </button>
+                                @if (lexwareEnabled && CustomerMergeService.IsLocalCustomer(customer))
+                                {
+                                    <button class="btn btn-sm btn-outline" @onclick="() => OpenMerge(customer)" title="Lokalen Kunden mit einem Lexware-Kunden zusammenführen">
+                                        Mit Lexware-Kunde zusammenführen
+                                    </button>
+                                }
                                 <a href="/tire-checkin" class="btn btn-sm btn-primary">
                                     Reifenstapel einlagern
                                 </a>
@@ -329,6 +336,88 @@ else
         </div>
     </div>
 }
+
+@* Merge local customer into Lexware customer *@
+@if (showMergeModal && mergeSource != null)
+{
+    <div class="modal-backdrop" @onclick="CloseMerge"></div>
+    <div class="app-modal" @onclick="CloseMerge" role="dialog" aria-modal="true" aria-labelledby="merge-title">
+        <div class="modal-dialog" @onclick:stopPropagation="true">
+            <div class="modal-content">
+                <div class="modal-header">
+                    <h5 class="modal-title" id="merge-title">Kunden zusammenführen</h5>
+                    <button type="button" class="btn-close" @onclick="CloseMerge" aria-label="Dialog schließen"></button>
+                </div>
+                <div class="modal-body">
+                    <div class="merge-source">
+                        <span class="label">Lokaler Kunde</span>
+                        <strong>@mergeSource.DisplayName</strong>
+                        <span class="merge-number">@mergeSource.CustomerNumber</span>
+                    </div>
+
+                    <label class="form-label" for="merge-search">Lexware-Kunde auswählen</label>
+                    <input id="merge-search" type="text" class="form-control" placeholder="Name, Firma, Kundennummer, Telefon…"
+                           @bind="mergeSearch" @bind:event="oninput" @bind:after="FilterMergeCandidates" />
+
+                    <ul class="merge-candidates" role="listbox">
+                        @if (mergeCandidates.Count == 0)
+                        {
+                            <li class="merge-empty">Keine passenden Lexware-Kunden gefunden.</li>
+                        }
+                        @foreach (var c in mergeCandidates)
+                        {
+                            <li @key="c.Id" class="merge-candidate @(mergeTarget?.Id == c.Id ? "selected" : "")"
+                                role="option" aria-selected="@(mergeTarget?.Id == c.Id)"
+                                @onclick="() => SelectMergeTarget(c)">
+                                <div class="merge-candidate-main">
+                                    <strong>@c.DisplayName</strong>
+                                    <span class="merge-number">@c.CustomerNumber</span>
+                                    @if (mergeSuggestionIds.Contains(c.Id))
+                                    {
+                                        <span class="merge-suggest-badge">Vorschlag</span>
+                                    }
+                                </div>
+                                <div class="merge-candidate-sub">
+                                    @if (!string.IsNullOrEmpty(c.Phone)) { <span>@c.Phone</span> }
+                                    @if (!string.IsNullOrEmpty(c.Email)) { <span>@c.Email</span> }
+                                </div>
+                            </li>
+                        }
+                    </ul>
+
+                    @if (mergeTarget != null)
+                    {
+                        <div class="merge-summary">
+                            <p>Folgende Daten werden auf <strong>@mergeTarget.DisplayName</strong> (@mergeTarget.CustomerNumber) übertragen:</p>
+                            <ul>
+                                <li>@mergeVehicleCount Fahrzeug(e)</li>
+                                <li>@mergeStackCount Reifenstapel (inkl. Historie)</li>
+                                <li>Verknüpfte Aufgaben und Notizen</li>
+                            </ul>
+                            <p class="merge-warning">Der lokale Kunde <strong>@mergeSource.CustomerNumber</strong> wird anschließend endgültig gelöscht.</p>
+                            <label class="merge-confirm">
+                                <input type="checkbox" @bind="mergeConfirmed" />
+                                Ich habe verstanden, dass dieser Vorgang nicht rückgängig gemacht werden kann.
+                            </label>
+                        </div>
+                    }
+
+                    @if (!string.IsNullOrEmpty(mergeError))
+                    {
+                        <div class="alert alert-danger">@mergeError</div>
+                    }
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-outline" @onclick="CloseMerge" disabled="@isMerging">Abbrechen</button>
+                    <button type="button" class="btn btn-danger" @onclick="ExecuteMerge"
+                            disabled="@(mergeTarget == null || !mergeConfirmed || isMerging)">
+                        @(isMerging ? "Wird zusammengeführt…" : "Zusammenführen")
+                    </button>
+                </div>
+            </div>
+        </div>
+    </div>
+}
 }
 
 @code {
@@ -362,6 +451,152 @@ else
     private bool CanSave => 
         !string.IsNullOrWhiteSpace(editCustomer.LastName);
 
+    // Merge state
+    private bool showMergeModal;
+    private Customer? mergeSource;
+    private Customer? mergeTarget;
+    private string mergeSearch = "";
+    private List<Customer> mergeCandidates = new();
+    private HashSet<Guid> mergeSuggestionIds = new();
+    private int mergeVehicleCount;
+    private int mergeStackCount;
+    private bool mergeConfirmed;
+    private bool isMerging;
+    private string? mergeError;
+
+    private async Task OpenMerge(Customer customer)
+    {
+        mergeSource = customer;
+        mergeTarget = null;
+        mergeSearch = "";
+        mergeConfirmed = false;
+        mergeError = null;
+
+        mergeVehicleCount = customer.Vehicles.Count(v => v.IsActive);
+        if (!customerTireStacks.TryGetValue(customer.Id, out var stacks))
+        {
+            stacks = await TireStackService.GetByCustomerAsync(customer.Id);
+            customerTireStacks[customer.Id] = stacks;
+        }
+        mergeStackCount = stacks.Count;
+
+        var lastName = customer.LastName.Trim().ToLowerInvariant();
+        var phone = NormalizePhone(customer.Phone);
+        var email = customer.Email?.Trim().ToLowerInvariant();
+
+        mergeSuggestionIds = allCustomers
+            .Where(c => c.Id != customer.Id && !CustomerMergeService.IsLocalCustomer(c))
+            .Where(c =>
+                (lastName.Length > 0 && c.LastName.Trim().ToLowerInvariant() == lastName) ||
+                (phone.Length > 0 && NormalizePhone(c.Phone) == phone) ||
+                (!string.IsNullOrEmpty(email) && c.Email?.Trim().ToLowerInvariant() == email))
+            .Select(c => c.Id)
+            .ToHashSet();
+
+        FilterMergeCandidates();
+        showMergeModal = true;
+    }
+
+    private void FilterMergeCandidates()
+    {
+        if (mergeSource == null) return;
+
+        var term = mergeSearch.Trim().ToLowerInvariant();
+        IEnumerable<Customer> query = allCustomers
+            .Where(c => c.Id != mergeSource.Id && !CustomerMergeService.IsLocalCustomer(c));
+
+        if (term.Length > 0)
+        {
+            query = query.Where(c =>
+                c.FullName.ToLowerInvariant().Contains(term) ||
+                (c.Company?.ToLowerInvariant().Contains(term) ?? false) ||
+                c.CustomerNumber.ToLowerInvariant().Contains(term) ||
+                (c.Phone?.Contains(term) ?? false) ||
+                (c.Email?.ToLowerInvariant().Contains(term) ?? false));
+        }
+
+        mergeCandidates = query
+            .OrderByDescending(c => mergeSuggestionIds.Contains(c.Id))
+            .ThenBy(c => c.LastName)
+            .ThenBy(c => c.FirstName)
+            .Take(term.Length > 0 ? 50 : 20)
+            .ToList();
+
+        if (mergeTarget != null && mergeCandidates.All(c => c.Id != mergeTarget.Id))
+        {
+            mergeTarget = null;
+            mergeConfirmed = false;
+        }
+    }
+
+    private void SelectMergeTarget(Customer customer)
+    {
+        mergeTarget = customer;
+        mergeConfirmed = false;
+        mergeError = null;
+    }
+
+    private void CloseMerge()
+    {
+        if (isMerging) return;
+        showMergeModal = false;
+        mergeSource = null;
+        mergeTarget = null;
+        mergeCandidates = new();
+        mergeSuggestionIds = new();
+        mergeError = null;
+    }
+
+    private async Task ExecuteMerge()
+    {
+        if (mergeSource == null || mergeTarget == null || !mergeConfirmed) return;
+
+        isMerging = true;
+        mergeError = null;
+
+        try
+        {
+            var result = await CustomerMergeService.MergeAsync(mergeSource.Id, mergeTarget.Id);
+
+            customerTireStacks.Remove(mergeSource.Id);
+            customerTireStacks.Remove(mergeTarget.Id);
+
+            syncMessage = $"Kunde {mergeSource.CustomerNumber} wurde mit {mergeTarget.DisplayName} ({mergeTarget.CustomerNumber}) zusammengeführt: " +
+                          $"{result.VehiclesMoved} Fahrzeug(e), {result.TireStacksMoved} Reifenstapel, {result.TasksMoved} Aufgabe(n) übertragen.";
+            syncMessageType = "success";
+
+            var targetId = result.TargetCustomerId;
+            isMerging = false;
+            CloseMerge();
+
+            await LoadCustomers();
+            SearchCustomers();
+            expandedId = targetId;
+            await ToggleCustomerLoadOnly(targetId);
+        }
+        catch (Exception ex)
+        {
+            mergeError = $"Zusammenführen fehlgeschlagen: {ex.Message}";
+        }
+        finally
+        {
+            isMerging = false;
+        }
+    }
+
+    private async Task ToggleCustomerLoadOnly(Guid id)
+    {
+        if (!customerTireStacks.ContainsKey(id))
+        {
+            customerTireStacks[id] = await TireStackService.GetByCustomerAsync(id);
+        }
+    }
+
+    private static string NormalizePhone(string? phone) =>
+        string.IsNullOrWhiteSpace(phone)
+            ? ""
+            : new string(phone.Where(char.IsDigit).ToArray());
+
     protected override async Task OnInitializedAsync()
     {
         if (UserSession.IsAdmin)

Lagerbestand/Components/Pages/Customers.razor.css

@@ -741,4 +741,130 @@
     margin-bottom: 0.5rem;
 }
 
+/* ========================================
+   Merge Modal
+   ======================================== */
+.merge-source {
+    display: flex;
+    flex-wrap: wrap;
+    align-items: baseline;
+    gap: 0.5rem;
+    padding: 0.6rem 0.75rem;
+    margin-bottom: 1rem;
+    border-radius: 8px;
+    background: rgba(255, 255, 255, 0.04);
+    border: 1px solid rgba(255, 255, 255, 0.08);
+}
+
+.merge-source .label {
+    font-size: 0.75rem;
+    text-transform: uppercase;
+    letter-spacing: 0.04em;
+    color: var(--text-secondary, #9a9a9a);
+}
+
+.merge-number {
+    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
+    font-size: 0.8rem;
+    color: var(--text-secondary, #9a9a9a);
+}
+
+.merge-candidates {
+    list-style: none;
+    margin: 0.5rem 0 0;
+    padding: 0;
+    max-height: 260px;
+    overflow-y: auto;
+    border: 1px solid rgba(255, 255, 255, 0.08);
+    border-radius: 8px;
+}
+
+.merge-candidate {
+    padding: 0.55rem 0.75rem;
+    cursor: pointer;
+    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
+    transition: background-color 0.15s ease;
+}
+
+.merge-candidate:last-child {
+    border-bottom: none;
+}
+
+.merge-candidate:hover {
+    background: rgba(255, 255, 255, 0.05);
+}
+
+.merge-candidate.selected {
+    background: rgba(var(--primary-rgb, 59, 130, 246), 0.18);
+    box-shadow: inset 3px 0 0 var(--primary, #3b82f6);
+}
+
+.merge-candidate-main {
+    display: flex;
+    flex-wrap: wrap;
+    align-items: baseline;
+    gap: 0.5rem;
+}
+
+.merge-candidate-sub {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 0.75rem;
+    font-size: 0.8rem;
+    color: var(--text-secondary, #9a9a9a);
+    margin-top: 0.15rem;
+}
+
+.merge-suggest-badge {
+    font-size: 0.7rem;
+    padding: 0.1rem 0.45rem;
+    border-radius: 999px;
+    background: rgba(34, 197, 94, 0.18);
+    color: #4ade80;
+    border: 1px solid rgba(34, 197, 94, 0.35);
+}
+
+.merge-empty {
+    padding: 0.75rem;
+    font-size: 0.85rem;
+    color: var(--text-secondary, #9a9a9a);
+    text-align: center;
+}
+
+.merge-summary {
+    margin-top: 1rem;
+    padding: 0.75rem;
+    border-radius: 8px;
+    background: rgba(255, 255, 255, 0.04);
+    border: 1px solid rgba(255, 255, 255, 0.08);
+    font-size: 0.9rem;
+}
+
+.merge-summary p {
+    margin: 0 0 0.5rem;
+}
+
+.merge-summary ul {
+    margin: 0 0 0.5rem 1.1rem;
+    padding: 0;
+}
+
+.merge-warning {
+    color: #f87171;
+}
+
+.merge-confirm {
+    display: flex;
+    align-items: flex-start;
+    gap: 0.5rem;
+    margin-top: 0.5rem;
+    font-size: 0.85rem;
+    cursor: pointer;
+}
+
+.merge-confirm input {
+    margin-top: 0.2rem;
+    flex-shrink: 0;
+}
+
 /* Reduced motion: inherited from app.css (section 17) */

Lagerbestand/Components/Pages/StorageLocations.razor

@@ -4,6 +4,8 @@
 @inject ILocationCodeService LocationCodeService
 @inject ITireStackService TireStackService
 @inject UserSessionService UserSession
+@inject IStorageRowPdfService RowPdfService
+@inject IJSRuntime JS
 
 <PageTitle>Lagerplätze - Reifen Späth Lagerverwaltung</PageTitle>
 
@@ -52,7 +54,7 @@ else
             </button>
             <button class="stat-chip available @(statusFilter == StatusAvailable ? "active" : "")"
                     @onclick="FilterByStatusAvailable" title="Nur freie Plätze anzeigen">
-                <span class="chip-value">@allLocations.Count(l => !l.IsOccupied)</span> Frei
+                <span class="chip-value">@allLocations.Count(l => !l.IsOccupied && l.IsAvailable)</span> Frei
             </button>
             <button class="stat-chip occupied @(statusFilter == StatusOccupied ? "active" : "")"
                     @onclick="FilterByStatusOccupied" title="Nur belegte Plätze anzeigen">
@@ -132,11 +134,24 @@ else
                     var occupiedCount = rowGroup.Count(l => l.IsOccupied);
                     var totalCount = rowGroup.Count();
                     <div class="row-section @(isCollapsed ? "collapsed" : "")">
-                        <button type="button" class="row-header" @onclick="() => ToggleRow(rowKey)">
-                            <span class="row-chevron">@(isCollapsed ? "▶" : "▼")</span>
-                            <h3 class="row-title">Reihe @rowGroup.Key</h3>
-                            <span class="row-summary">@occupiedCount / @totalCount belegt</span>
-                        </button>
+                        <div class="row-header-wrap">
+                            <button type="button" class="row-header" @onclick="() => ToggleRow(rowKey)">
+                                <span class="row-chevron">@(isCollapsed ? "▶" : "▼")</span>
+                                <h3 class="row-title">Reihe @rowGroup.Key</h3>
+                                <span class="row-summary">@occupiedCount / @totalCount belegt</span>
+                            </button>
+                            <button type="button" class="btn btn-outline btn-sm row-print-btn"
+                                    title="Reihe als PDF drucken"
+                                    disabled="@(printingRowKey != null)"
+                                    @onclick="() => PrintRow(areaGroup.Key, rowGroup.Key)"
+                                    @onclick:stopPropagation>
+                                @(printingRowKey == rowKey ? "⏳" : "🖨") PDF
+                            </button>
+                        </div>
+                        @if (printErrorRowKey == rowKey && printError != null)
+                        {
+                            <div class="row-print-error" role="alert">@printError</div>
+                        }
                         @if (!isCollapsed)
                         {
                         @foreach (var posGroup in rowGroup.GroupBy(l => l.Position).OrderBy(g => (int)g.Key))
@@ -155,11 +170,21 @@ else
                                     @if (location.IsOccupied && storedTireStack != null)
                                     {
                                         <div class="card-content">
-                                            <span class="customer-name">
+                                            <span class="customer-name" title="@(storedTireStack.Customer?.FullName ?? storedTireStack.CatalogItem?.Name ?? "Lager")">
                                                 @(storedTireStack.Customer?.FullName ?? storedTireStack.CatalogItem?.Name ?? "Lager")
                                             </span>
+                                            @if (storedTireStack.Vehicle != null)
+                                            {
+                                                <span class="vehicle-line" title="@storedTireStack.Vehicle.ShortName">
+                                                    <span class="vehicle-model">🚗 @storedTireStack.Vehicle.ShortName</span>
+                                                </span>
+                                            }
                                             <span class="tire-info">
-                                                @(storedTireStack.Season == TireSeason.Sommer ? "☀️" : storedTireStack.Season == TireSeason.Winter ? "❄️" : "🔄")
+                                                <span class="season-icon">@(storedTireStack.Season == TireSeason.Sommer ? "☀️" : storedTireStack.Season == TireSeason.Winter ? "❄️" : "🔄")</span>
+                                                @if (!string.IsNullOrEmpty(storedTireStack.TireSize))
+                                                {
+                                                    <span class="tire-size-compact">@storedTireStack.TireSize</span>
+                                                }
                                             </span>
                                         </div>
                                     }
@@ -231,7 +256,7 @@ else
                                         <span class="customer">@storedTireStack.Customer.FullName</span>
                                         @if (storedTireStack.Vehicle != null)
                                         {
-                                            <span class="vehicle-info">@storedTireStack.Vehicle.ShortName</span>
+                                            <span class="vehicle-info">🚗 @storedTireStack.Vehicle.ShortName</span>
                                         }
                                     }
                                     else
@@ -761,6 +786,40 @@ else
         }
     }
 
+    private string? printingRowKey;
+    private string? printErrorRowKey;
+    private string? printError;
+
+    private async Task PrintRow(AreaType area, int row)
+    {
+        var rowKey = $"{area}-{row}";
+        if (printingRowKey != null) return;
+
+        printingRowKey = rowKey;
+        printError = null;
+        printErrorRowKey = null;
+
+        try
+        {
+            var rowLocations = allLocations
+                .Where(l => l.Area == area && l.Row == row)
+                .ToList();
+
+            var pdf = RowPdfService.GenerateRowPdf(area, row, rowLocations);
+            var fileName = $"Lagerplan_{area.GetDisplayName()}_Reihe{row}_{DateTime.Now:yyyyMMdd-HHmm}.pdf";
+            await JS.InvokeVoidAsync("appInterop.downloadFile", fileName, Convert.ToBase64String(pdf), "application/pdf");
+        }
+        catch (Exception ex)
+        {
+            printErrorRowKey = rowKey;
+            printError = $"PDF konnte nicht erstellt werden: {ex.Message}";
+        }
+        finally
+        {
+            printingRowKey = null;
+        }
+    }
+
     // Batch creation
     private AreaType batchArea = AreaType.Lager;
     private int batchRow = 1;

Lagerbestand/Components/Pages/StorageLocations.razor.css

@@ -493,6 +493,33 @@
     margin-bottom: 0;
 }
 
+.row-header-wrap {
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+}
+
+.row-header-wrap .row-header {
+    flex: 1;
+    min-width: 0;
+}
+
+.row-print-btn {
+    flex-shrink: 0;
+    white-space: nowrap;
+    margin-bottom: 0.4rem;
+}
+
+.row-section.collapsed .row-print-btn {
+    margin-bottom: 0;
+}
+
+.row-print-error {
+    color: var(--danger, #e74c3c);
+    font-size: 0.8rem;
+    margin: 0 0 0.4rem 1.75rem;
+}
+
 .row-chevron {
     font-size: 0.6rem;
     color: var(--text-secondary);
@@ -629,10 +656,48 @@
     text-overflow: ellipsis;
 }
 
-.card-content .tire-info {
-    display: block;
-    font-size: var(--text-sm);
+.card-content .vehicle-line {
+    display: flex;
+    align-items: center;
+    gap: 4px;
     margin-top: 2px;
+    min-width: 0;
+}
+
+.card-content .vehicle-model {
+    font-size: 0.7rem;
+    color: var(--text-muted);
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    flex: 1;
+    min-width: 0;
+}
+
+.location-table .vehicle-info {
+    display: flex;
+    align-items: center;
+    gap: 6px;
+    font-size: 0.75rem;
+    color: var(--text-muted);
+    margin-top: 2px;
+}
+
+.card-content .tire-info {
+    display: flex;
+    align-items: center;
+    gap: 4px;
+    font-size: var(--text-xs);
+    margin-top: 3px;
+    white-space: nowrap;
+    overflow: hidden;
+}
+
+.card-content .tire-size-compact {
+    font-size: 0.65rem;
+    color: var(--text-muted);
+    overflow: hidden;
+    text-overflow: ellipsis;
 }
 
 .card-content.empty {