Merge dev into master: inventory bin filter, print bin, mobile login fixes, QR scan fix

src/PowderCoating.Application/DTOs/Inventory/InventoryDtos.cs

@@ -68,6 +68,7 @@ public class InventoryListDto
     public string? CategoryName { get; set; }
     public string Category { get; set; } = string.Empty; // Legacy field
     public string? ColorName { get; set; }
+    public string? Location { get; set; }
     public decimal QuantityOnHand { get; set; }
     public string UnitOfMeasure { get; set; } = "lbs";
     public decimal ReorderPoint { get; set; }

src/PowderCoating.Infrastructure/Services/InventoryAiLookupService.cs

@@ -1209,6 +1209,15 @@ Rules:
             sb.AppendLine("Page content:");
             sb.AppendLine(pageContent);
         }
+        else if (!string.IsNullOrWhiteSpace(fetchUrl))
+        {
+            // Page content unavailable (fetch failed or blocked) — still surface the URL so Claude
+            // can use its training knowledge of the manufacturer URL structure (e.g. Prismatic SKU
+            // in the path) to infer product identity rather than returning all-null fields.
+            sb.AppendLine();
+            sb.AppendLine($"Product URL (page content could not be fetched): {fetchUrl}");
+            sb.AppendLine("Use your training knowledge of this manufacturer and the URL to fill in as many fields as possible.");
+        }
 
         return sb.ToString();
     }

src/PowderCoating.Web/Controllers/InventoryController.cs

@@ -64,6 +64,7 @@ public class InventoryController : Controller
     public async Task<IActionResult> Index(
         string? searchTerm,
         string? category,
+        string? location,
         string? sortColumn,
         string sortDirection = "asc",
         bool lowStockOnly = false,
@@ -87,50 +88,64 @@ public class InventoryController : Controller
             };
             gridRequest.Validate();
 
-            // Build search and category filter
+            // Build filter — compose search, category, location, and low-stock predicates
             System.Linq.Expressions.Expression<Func<InventoryItem, bool>>? filter = null;
 
-            if (lowStockOnly && !string.IsNullOrWhiteSpace(searchTerm))
-            {
-                var search = searchTerm.ToLower();
+            var hasSearch   = !string.IsNullOrWhiteSpace(searchTerm);
+            var hasCategory = !string.IsNullOrWhiteSpace(category);
+            var hasLocation = !string.IsNullOrWhiteSpace(location);
+
+            var search = searchTerm?.ToLower() ?? "";
+            var cat    = category ?? "";
+            var loc    = location ?? "";
+
+            if (lowStockOnly && hasSearch && hasLocation)
                 filter = i => i.IsActive && i.QuantityOnHand <= i.ReorderPoint
-                    && (i.SKU.ToLower().Contains(search)
-                        || i.Name.ToLower().Contains(search)
+                    && (i.Location != null && i.Location.ToLower() == loc.ToLower())
+                    && (i.SKU.ToLower().Contains(search) || i.Name.ToLower().Contains(search)
                         || (i.ColorName != null && i.ColorName.ToLower().Contains(search))
                         || (i.Manufacturer != null && i.Manufacturer.ToLower().Contains(search)));
-            }
+            else if (lowStockOnly && hasSearch)
+                filter = i => i.IsActive && i.QuantityOnHand <= i.ReorderPoint
+                    && (i.SKU.ToLower().Contains(search) || i.Name.ToLower().Contains(search)
+                        || (i.ColorName != null && i.ColorName.ToLower().Contains(search))
+                        || (i.Manufacturer != null && i.Manufacturer.ToLower().Contains(search)));
+            else if (lowStockOnly && hasLocation)
+                filter = i => i.IsActive && i.QuantityOnHand <= i.ReorderPoint
+                    && (i.Location != null && i.Location.ToLower() == loc.ToLower());
             else if (lowStockOnly)
-            {
                 filter = i => i.IsActive && i.QuantityOnHand <= i.ReorderPoint;
-            }
-            else if (!string.IsNullOrWhiteSpace(searchTerm) && !string.IsNullOrWhiteSpace(category))
-            {
-                // Both search and category filter
-                var search = searchTerm.ToLower();
-                var cat = category;
-                filter = i => (i.SKU.ToLower().Contains(search)
-                    || i.Name.ToLower().Contains(search)
-                    || (i.Description != null && i.Description.ToLower().Contains(search))
-                    || (i.ColorName != null && i.ColorName.ToLower().Contains(search))
-                    || (i.Manufacturer != null && i.Manufacturer.ToLower().Contains(search)))
+            else if (hasSearch && hasCategory && hasLocation)
+                filter = i => (i.SKU.ToLower().Contains(search) || i.Name.ToLower().Contains(search)
+                        || (i.Description != null && i.Description.ToLower().Contains(search))
+                        || (i.ColorName != null && i.ColorName.ToLower().Contains(search))
+                        || (i.Manufacturer != null && i.Manufacturer.ToLower().Contains(search)))
+                    && i.Category.ToLower() == cat.ToLower()
+                    && (i.Location != null && i.Location.ToLower() == loc.ToLower());
+            else if (hasSearch && hasCategory)
+                filter = i => (i.SKU.ToLower().Contains(search) || i.Name.ToLower().Contains(search)
+                        || (i.Description != null && i.Description.ToLower().Contains(search))
+                        || (i.ColorName != null && i.ColorName.ToLower().Contains(search))
+                        || (i.Manufacturer != null && i.Manufacturer.ToLower().Contains(search)))
                     && i.Category.ToLower() == cat.ToLower();
-            }
-            else if (!string.IsNullOrWhiteSpace(searchTerm))
-            {
-                // Search only
-                var search = searchTerm.ToLower();
-                filter = i => i.SKU.ToLower().Contains(search)
-                    || i.Name.ToLower().Contains(search)
+            else if (hasSearch && hasLocation)
+                filter = i => (i.SKU.ToLower().Contains(search) || i.Name.ToLower().Contains(search)
+                        || (i.Description != null && i.Description.ToLower().Contains(search))
+                        || (i.ColorName != null && i.ColorName.ToLower().Contains(search))
+                        || (i.Manufacturer != null && i.Manufacturer.ToLower().Contains(search)))
+                    && (i.Location != null && i.Location.ToLower() == loc.ToLower());
+            else if (hasSearch)
+                filter = i => i.SKU.ToLower().Contains(search) || i.Name.ToLower().Contains(search)
                     || (i.Description != null && i.Description.ToLower().Contains(search))
                     || (i.ColorName != null && i.ColorName.ToLower().Contains(search))
                     || (i.Manufacturer != null && i.Manufacturer.ToLower().Contains(search));
-            }
-            else if (!string.IsNullOrWhiteSpace(category))
-            {
-                // Category filter only
-                var cat = category;
+            else if (hasCategory && hasLocation)
+                filter = i => i.Category.ToLower() == cat.ToLower()
+                    && (i.Location != null && i.Location.ToLower() == loc.ToLower());
+            else if (hasCategory)
                 filter = i => i.Category.ToLower() == cat.ToLower();
-            }
+            else if (hasLocation)
+                filter = i => i.Location != null && i.Location.ToLower() == loc.ToLower();
 
             // Build orderBy function
             Func<IQueryable<InventoryItem>, IOrderedQueryable<InventoryItem>> orderBy = gridRequest.SortColumn switch
@@ -159,19 +174,21 @@ public class InventoryController : Controller
 
             var pagedResult = PagedResult<InventoryListDto>.From(gridRequest, itemDtos, totalCount);
 
-            // Load all items once to compute sidebar stats and category list in memory
+            // Load all items once to compute sidebar stats and dropdown option lists in memory
             var companyId = _tenantContext.GetCurrentCompanyId() ?? 0;
             var allItems = (await _unitOfWork.InventoryItems.FindAsync(i => i.CompanyId == companyId)).ToList();
             ViewBag.Categories         = allItems.Select(i => i.Category).Where(c => c != null).Distinct().OrderBy(c => c).ToList();
+            ViewBag.Locations          = allItems.Select(i => i.Location).Where(l => !string.IsNullOrWhiteSpace(l)).Distinct().OrderBy(l => l).ToList();
             ViewBag.StatsLowStockCount = allItems.Count(i => i.IsActive && i.QuantityOnHand <= i.ReorderPoint);
             ViewBag.StatsActiveCount   = allItems.Count(i => i.IsActive);
             ViewBag.StatsTotalValue    = allItems.Sum(i => (decimal?)i.QuantityOnHand * i.UnitCost) ?? 0m;
 
             // Set ViewBag for sorting and filters
-            ViewBag.SearchTerm = searchTerm;
-            ViewBag.Category = category;
+            ViewBag.SearchTerm   = searchTerm;
+            ViewBag.Category     = category;
+            ViewBag.Location     = location;
             ViewBag.LowStockOnly = lowStockOnly;
-            ViewBag.SortColumn = gridRequest.SortColumn;
+            ViewBag.SortColumn   = gridRequest.SortColumn;
             ViewBag.SortDirection = gridRequest.SortDirection;
 
             return View(pagedResult);
@@ -184,6 +201,26 @@ public class InventoryController : Controller
         }
     }
 
+    /// <summary>
+    /// Returns a print-optimised list of all active inventory items in a given bin/location.
+    /// Renders without the site chrome (no layout) so the browser print dialog produces a
+    /// clean page. Items are sorted by name within the bin.
+    /// </summary>
+    public async Task<IActionResult> PrintBin(string location)
+    {
+        if (string.IsNullOrWhiteSpace(location))
+            return RedirectToAction(nameof(Index));
+
+        var loc = location.Trim();
+        var items = await _unitOfWork.InventoryItems.FindAsync(
+            i => i.Location != null && i.Location.ToLower() == loc.ToLower());
+
+        var dtos = _mapper.Map<List<InventoryListDto>>(items.OrderBy(i => i.Name).ToList());
+        ViewBag.Location = loc;
+        ViewBag.PrintedAt = DateTime.Now;
+        return View(dtos);
+    }
+
     /// <summary>
     /// Renders the inventory item detail page. The primary vendor name is looked up
     /// separately because the repository does not eager-load Vendor by default, avoiding
@@ -897,10 +934,28 @@ public class InventoryController : Controller
 
         if (!string.IsNullOrWhiteSpace(qrUrl))
         {
-            // QR path: fetch the product page; LookupByUrlAsync now maps all identity + spec fields
-            aiResult = await _aiLookupService.LookupByUrlAsync(qrUrl, null);
-            if (aiResult.Success && aiResult.SpecPageUrl == null)
-                aiResult.SpecPageUrl = qrUrl;
+            // QR path: try to extract product identity from the URL using manufacturer patterns.
+            // Prismatic Powders URLs embed both the SKU and color slug in the path
+            // (e.g. /shop/powder-coating-colors/PMB-6906/fire-red), so we can feed the full
+            // LookupAsync pipeline (Serper + direct URL + Claude) with real context instead of
+            // relying solely on a page fetch that may fail in production.
+            var activePatterns = (await _unitOfWork.ManufacturerLookupPatterns.GetAllAsync(ignoreQueryFilters: true))
+                .Where(p => p.IsActive).ToList();
+            var (urlMfr, urlColor, urlPart) = TryParseManufacturerUrl(qrUrl, activePatterns);
+
+            if (!string.IsNullOrWhiteSpace(urlMfr))
+            {
+                aiResult = await _aiLookupService.LookupAsync(urlMfr, urlColor, null, urlPart);
+                if (aiResult.Success && aiResult.SpecPageUrl == null)
+                    aiResult.SpecPageUrl = qrUrl;
+            }
+            else
+            {
+                // No pattern match — fall back to URL-based lookup
+                aiResult = await _aiLookupService.LookupByUrlAsync(qrUrl, null);
+                if (aiResult.Success && aiResult.SpecPageUrl == null)
+                    aiResult.SpecPageUrl = qrUrl;
+            }
         }
         else if (!string.IsNullOrWhiteSpace(imageBase64))
         {
@@ -1272,6 +1327,72 @@ public class InventoryController : Controller
         return transferEfficiency ?? DefaultTransferEfficiency;
     }
 
+    /// <summary>
+    /// Reverse-parses a scanned QR URL against known manufacturer URL templates to extract
+    /// product identity (manufacturer name, color name, part number). For example, a Prismatic
+    /// Powders URL like /shop/powder-coating-colors/PMB-6906/fire-red yields manufacturer
+    /// "Prismatic Powders", partNumber "PMB-6906", and colorName "Fire Red". Returns nulls
+    /// when no active pattern matches the URL domain.
+    /// </summary>
+    private static (string? manufacturer, string? colorName, string? partNumber) TryParseManufacturerUrl(
+        string url, IEnumerable<Core.Entities.ManufacturerLookupPattern> patterns)
+    {
+        Uri? parsed;
+        try { parsed = new Uri(url); } catch { return (null, null, null); }
+
+        var host = parsed.Host.Replace("www.", "", StringComparison.OrdinalIgnoreCase);
+
+        foreach (var pattern in patterns.Where(p => !string.IsNullOrEmpty(p.Domain) && !string.IsNullOrEmpty(p.ProductUrlTemplate)))
+        {
+            if (!host.Equals(pattern.Domain, StringComparison.OrdinalIgnoreCase)) continue;
+
+            var template = pattern.ProductUrlTemplate!;
+            var placeholderKeys = new[] { "{partNumber}", "{slug}", "{colorName}", "{colorCode}" };
+
+            // Find the first placeholder to split off the static prefix
+            var firstIdx = placeholderKeys
+                .Select(ph => template.IndexOf(ph, StringComparison.OrdinalIgnoreCase))
+                .Where(i => i >= 0)
+                .DefaultIfEmpty(-1)
+                .Min();
+
+            if (firstIdx < 0) continue;
+
+            var staticPrefix = template[..firstIdx].TrimEnd('/');
+            var fullUrl = url.TrimEnd('/');
+            if (!fullUrl.StartsWith(staticPrefix, StringComparison.OrdinalIgnoreCase)) continue;
+
+            var templateSegments = template[firstIdx..].Split('/', StringSplitOptions.RemoveEmptyEntries);
+            var urlSegments      = fullUrl[staticPrefix.Length..].Split('/', StringSplitOptions.RemoveEmptyEntries);
+
+            var extracted = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
+            bool matched = true;
+            for (int i = 0; i < templateSegments.Length && i < urlSegments.Length; i++)
+            {
+                var seg = templateSegments[i];
+                if (seg.StartsWith("{") && seg.EndsWith("}"))
+                    extracted[seg[1..^1]] = urlSegments[i];
+                else if (!seg.Equals(urlSegments[i], StringComparison.OrdinalIgnoreCase))
+                { matched = false; break; }
+            }
+            if (!matched) continue;
+
+            extracted.TryGetValue("partNumber", out var partNumber);
+            var slug = extracted.TryGetValue("slug", out var s) ? s
+                     : extracted.TryGetValue("colorName", out var cn) ? cn
+                     : extracted.TryGetValue("colorCode", out var cc) ? cc : null;
+
+            // Convert URL slug to display name: "fire-red" → "Fire Red"
+            string? colorName = slug == null ? null
+                : string.Join(" ", slug.Split(new[] { '-', '_' }, StringSplitOptions.RemoveEmptyEntries)
+                    .Select(w => w.Length > 0 ? char.ToUpperInvariant(w[0]) + w[1..].ToLowerInvariant() : w));
+
+            return (pattern.ManufacturerName, colorName, partNumber);
+        }
+
+        return (null, null, null);
+    }
+
     /// <summary>
     /// Normalizes a string to title-case using the current culture's TextInfo. Applied to
     /// inventory item names on create and edit so the list view is consistently formatted

src/PowderCoating.Web/Helpers/HelpKnowledgeBase.cs

@@ -301,7 +301,18 @@ public static class HelpKnowledgeBase
 
         **Time Entries:** Track labor time on a job from the Details page.
 
-        **Rework:** If a job needs to be redone, a rework record can be created from the Details page. Tracks rework type, reason, and resolution.
+        **Rework / Redo:** Rework and redo mean the same thing in this system. If a finished part fails QA or a customer brings it back damaged, open the original job's Details page and use the **Rework Log** section to record it.
+
+        Each rework entry captures: the type (internal defect, customer damage, warranty), the reason (adhesion failure, color mismatch, runs/sags, insufficient coverage, etc.), a defect description, who discovered it, and pricing responsibility.
+
+        **Pricing responsibility options:**
+        - **Shop Fault — no charge:** All rework job item prices are set to $0. Use this when the defect is the shop's fault.
+        - **Customer responsible — reduced rate:** Item prices are copied from the original job. Edit them down after the rework job is created.
+        - **Customer responsible — full price:** Item prices are copied from the original job as-is.
+
+        **Creating a rework job:** Toggle "Parts are back — create a Rework Job" in the log form. Select which items need to be redone and choose the pricing responsibility. The system creates a new job with a sub-number (e.g., JOB-2605-0001-R1), copies the selected items with their coats and prep services, and auto-records intake (parts are already on hand). The rework job description shows the defect type, reason, and pricing at the top of the job where it is easy to see.
+
+        **Rework job completion:** When the rework job reaches a terminal status (Completed, Delivered, etc.), the linked rework record on the original job is automatically marked as **Resolved**. If the rework job is Cancelled instead, the record is marked **Written Off**. No manual follow-up on the original job is needed.
 
         **Job Templates:** [/JobTemplates](/JobTemplates) — Save a job's items as a template to reuse for common work types. When creating a new job, select a template to pre-fill items.
 
@@ -462,6 +473,13 @@ public static class HelpKnowledgeBase
         - Every scan log is recorded as a JobUsage or Adjustment InventoryTransaction and immediately reduces QuantityOnHand; visible in Inventory Activity ledger
         - First-time scan on a new device requires login; browser caches the session after that
 
+        **Location / Bin filtering and printing:**
+        - Every inventory item has an optional **Location** field (e.g. "Shelf A", "Bin 3") set on the Create/Edit form.
+        - Once any item has a location, a **Location dropdown** appears in the Inventory list filter bar (next to Category). Selecting a location filters the list to only items stored there. Can be combined with keyword search and category filter simultaneously.
+        - Each location badge in the table is a clickable link that instantly filters to that bin.
+        - With a location filter active, a **Print Bin** button appears in the filter banner. Clicking it opens a printer-ready page (new tab) at /Inventory/PrintBin?location=... listing all items in that bin with line number, name, color, and SKU. No site chrome — prints cleanly on a standard sheet.
+        - The Location dropdown only appears when at least one item has a location value set. If a user doesn't see it, they need to fill in the Location field on at least one inventory item.
+
         **Catalog Lookup & Label Scanner (when adding/editing inventory items):**
         - When creating or editing an inventory item, click the **Lookup** button next to the SKU/Part Number field to search a built-in platform catalog of thousands of Prismatic Powders and other manufacturer SKUs. Select a match to auto-fill name, manufacturer, color code, finish, coverage rate, SDS/TDS links, and cure specs.
         - The catalog only shows products not already in the company's inventory (prevents duplicates). When editing, the item's own catalog entry is always shown.

src/PowderCoating.Web/Program.cs

@@ -180,6 +180,18 @@ builder.Services.AddIdentity<ApplicationUser, IdentityRole>(options =>
 .AddDefaultUI()
 .AddClaimsPrincipalFactory<ApplicationUserClaimsPrincipalFactory>();
 
+// Configure the auth cookie to survive mobile browser suspensions (iOS Safari clears session
+// cookies when it suspends a tab). Max-Age on the cookie itself makes it persistent regardless
+// of whether the user checked "Remember me". SlidingExpiration renews the window on each request.
+builder.Services.ConfigureApplicationCookie(options =>
+{
+    options.ExpireTimeSpan    = TimeSpan.FromDays(30);
+    options.SlidingExpiration = true;
+    options.Cookie.MaxAge     = TimeSpan.FromDays(30);
+    options.Cookie.IsEssential = true;
+    options.Cookie.SameSite   = SameSiteMode.Lax;
+});
+
 // Register HttpContextAccessor for multi-tenancy
 builder.Services.AddHttpContextAccessor();
 
@@ -530,6 +542,49 @@ builder.Services.AddRateLimiter(options =>
 {
     options.RejectionStatusCode = StatusCodes.Status429TooManyRequests;
 
+    // Return a proper HTML body on 429 so mobile browsers (especially iOS Safari) don't try to
+    // download the empty response as a file. Without this, Safari shows "Login / data Zero KB".
+    options.OnRejected = async (context, ct) =>
+    {
+        context.HttpContext.Response.StatusCode = StatusCodes.Status429TooManyRequests;
+
+        var isAjax = context.HttpContext.Request.Headers.XRequestedWith == "XMLHttpRequest"
+                  || (context.HttpContext.Request.Headers.Accept.ToString().Contains("application/json"));
+
+        if (isAjax)
+        {
+            context.HttpContext.Response.ContentType = "application/json; charset=utf-8";
+            await context.HttpContext.Response.WriteAsync(
+                """{"success":false,"error":"Too many requests. Please wait a moment and try again."}""", ct);
+        }
+        else
+        {
+            context.HttpContext.Response.ContentType = "text/html; charset=utf-8";
+            await context.HttpContext.Response.WriteAsync("""
+                <!DOCTYPE html>
+                <html lang="en">
+                <head>
+                  <meta charset="utf-8">
+                  <meta name="viewport" content="width=device-width, initial-scale=1">
+                  <title>Too Many Requests &mdash; Powder Coating Logix</title>
+                  <style>
+                    body{font-family:system-ui,sans-serif;display:flex;align-items:center;justify-content:center;min-height:100vh;margin:0;background:#f5f5f5}
+                    .card{background:#fff;border-radius:8px;padding:2rem;max-width:420px;text-align:center;box-shadow:0 2px 8px rgba(0,0,0,.1)}
+                    h2{margin-top:0;color:#333}p{color:#666}a{color:#0d6efd}
+                  </style>
+                </head>
+                <body>
+                  <div class="card">
+                    <h2>Too Many Requests</h2>
+                    <p>You've made too many login attempts in a short period. Please wait a minute and try again.</p>
+                    <a href="/Identity/Account/Login">Back to Login</a>
+                  </div>
+                </body>
+                </html>
+                """, ct);
+        }
+    };
+
     // login / password-reset — 10 per minute per IP
     options.AddPolicy(AppConstants.RateLimitPolicies.Auth, ctx =>
         RateLimitPartition.GetSlidingWindowLimiter(

src/PowderCoating.Web/Views/Help/Inventory.cshtml

@@ -73,6 +73,49 @@
             </div>
         </section>
 
+        <section id="bin-filter" class="mb-5">
+            <h2 class="h4 fw-bold border-bottom pb-2 mb-3">
+                <i class="bi bi-geo-alt text-primary me-2"></i>Filtering by Location &amp; Printing a Bin List
+            </h2>
+            <p>
+                Every inventory item has an optional <strong>Location</strong> field (for example "Shelf A",
+                "Bin 3", or "Back Wall") that you can set when creating or editing an item. Once locations
+                are filled in, the Inventory list gives you two shortcuts for physical counts and
+                stocktaking:
+            </p>
+
+            <h3 class="h6 fw-semibold mt-3 mb-2">Filtering by location</h3>
+            <p>
+                When at least one item has a location set, a <strong>Location</strong> dropdown appears in
+                the filter bar at the top of the Inventory list, next to the Category filter. Select a
+                location from the dropdown to instantly narrow the list to only the items stored there.
+                You can combine the location filter with a keyword search or category filter at the same time.
+            </p>
+            <p>
+                Each location badge shown in the Location column of the table is also a direct link &mdash;
+                clicking it immediately filters to that bin without using the dropdown.
+            </p>
+
+            <h3 class="h6 fw-semibold mt-4 mb-2">Printing a bin list</h3>
+            <p>
+                With a location filter active, a <strong>Print Bin</strong> button appears next to the
+                Clear Filters button. Click it to open a printer-ready page (in a new tab) listing every
+                item in that bin with its item number, name, color, and SKU. Click <strong>Print</strong>
+                on that page or use your browser&rsquo;s print shortcut to send it to a printer or save
+                as PDF. The page has no site chrome &mdash; just the table &mdash; so it prints cleanly on a
+                standard sheet.
+            </p>
+
+            <div class="alert alert-permanent alert-info d-flex gap-2 mb-0" role="alert">
+                <i class="bi bi-lightbulb-fill flex-shrink-0 mt-1"></i>
+                <div>
+                    The Location dropdown only appears once at least one inventory item has a location set.
+                    If you don&rsquo;t see it, open any item, fill in the <strong>Location</strong> field on the
+                    edit form, and save &mdash; the dropdown will appear on your next visit to the Inventory list.
+                </div>
+            </div>
+        </section>
+
         <section id="catalog-lookup" class="mb-5">
             <h2 class="h4 fw-bold border-bottom pb-2 mb-3">
                 <i class="bi bi-search text-primary me-2"></i>Catalog Lookup &amp; Label Scanner
@@ -533,6 +576,7 @@
                 <nav class="nav flex-column">
                     <a class="nav-link py-1 px-3 small text-body" href="#overview">Overview</a>
                     <a class="nav-link py-1 px-3 small text-body" href="#adding-items">Adding Inventory Items</a>
+                    <a class="nav-link py-1 px-3 small text-body" href="#bin-filter">Location Filtering &amp; Bin Print</a>
                     <a class="nav-link py-1 px-3 small text-body" href="#catalog-lookup">Catalog Lookup &amp; Label Scanner</a>
                     <a class="nav-link py-1 px-3 small text-body" href="#stock-levels">Stock Levels and Reorder Points</a>
                     <a class="nav-link py-1 px-3 small text-body" href="#stock-adjustment">Stock Adjustment</a>

src/PowderCoating.Web/Views/Inventory/Index.cshtml

@@ -123,10 +123,11 @@
 
 @{
     var lowStockOnly = (bool)(ViewBag.LowStockOnly ?? false);
+    var activeLocation = ViewBag.Location as string;
 }
-@if (!string.IsNullOrEmpty(ViewBag.SearchTerm) || !string.IsNullOrEmpty(ViewBag.Category) || lowStockOnly)
+@if (!string.IsNullOrEmpty(ViewBag.SearchTerm) || !string.IsNullOrEmpty(ViewBag.Category) || !string.IsNullOrEmpty(activeLocation) || lowStockOnly)
 {
-    <div class="alert @(lowStockOnly ? "alert-warning" : "alert-info") alert-permanent d-flex justify-content-between align-items-center">
+    <div class="alert @(lowStockOnly ? "alert-warning" : "alert-info") alert-permanent d-flex justify-content-between align-items-center flex-wrap gap-2">
         <div>
             <i class="bi bi-funnel-fill me-2"></i>
             @if (lowStockOnly)
@@ -144,11 +145,24 @@
                 {
                     <span> in category "<strong>@ViewBag.Category</strong>"</span>
                 }
+                @if (!string.IsNullOrEmpty(activeLocation))
+                {
+                    <span> in bin "<strong>@activeLocation</strong>"</span>
+                }
             }
         </div>
-        <a href="@Url.Action("Index")" class="btn btn-sm btn-outline-secondary">
-            <i class="bi bi-x me-1"></i>Clear Filters
-        </a>
+        <div class="d-flex gap-2 flex-wrap">
+            @if (!string.IsNullOrEmpty(activeLocation))
+            {
+                <a href="@Url.Action("PrintBin", new { location = activeLocation })" target="_blank"
+                   class="btn btn-sm btn-outline-primary" title="Print bin list">
+                    <i class="bi bi-printer me-1"></i>Print Bin
+                </a>
+            }
+            <a href="@Url.Action("Index")" class="btn btn-sm btn-outline-secondary">
+                <i class="bi bi-x me-1"></i>Clear Filters
+            </a>
+        </div>
     </div>
 }
 
@@ -161,14 +175,24 @@
                     <input type="hidden" name="sortColumn" value="@ViewBag.SortColumn" />
                     <input type="hidden" name="sortDirection" value="@ViewBag.SortDirection" />
                     <input type="hidden" name="pageSize" value="@Model.PageSize" />
-                    <select name="category" class="form-select" style="max-width: 250px; min-width: 150px;" onchange="this.form.submit()">
+                    <select name="category" class="form-select" style="max-width: 180px; min-width: 130px;" onchange="this.form.submit()">
                         <option value="">All Categories</option>
                         @foreach (var cat in ViewBag.Categories)
                         {
                             <option value="@cat" selected="@(cat == ViewBag.Category)">@cat</option>
                         }
                     </select>
-                    <div class="input-group" style="max-width: 480px; min-width: 300px;">
+                    @if (((IEnumerable<string?>)ViewBag.Locations).Any())
+                    {
+                        <select name="location" class="form-select" style="max-width: 180px; min-width: 130px;" onchange="this.form.submit()">
+                            <option value="">All Locations</option>
+                            @foreach (var loc in ViewBag.Locations)
+                            {
+                                <option value="@loc" selected="@(loc == activeLocation)">@loc</option>
+                            }
+                        </select>
+                    }
+                    <div class="input-group" style="max-width: 380px; min-width: 260px;">
                         <span class="input-group-text bg-white border-end-0">
                             <i class="bi bi-search text-muted"></i>
                         </span>
@@ -210,6 +234,7 @@
                             <th sortable="Name" current-sort="@ViewBag.SortColumn" current-direction="@ViewBag.SortDirection" class="ps-4">Item Name</th>
                             <th sortable="Category" current-sort="@ViewBag.SortColumn" current-direction="@ViewBag.SortDirection">Category</th>
                             <th sortable="ColorName" current-sort="@ViewBag.SortColumn" current-direction="@ViewBag.SortDirection">Color</th>
+                            <th>Location</th>
                             <th>Vendor</th>
                             <th sortable="QuantityOnHand" current-sort="@ViewBag.SortColumn" current-direction="@ViewBag.SortDirection">Quantity</th>
                             <th>Reorder Point</th>
@@ -250,6 +275,21 @@
                                         <span class="text-muted">&mdash;</span>
                                     }
                                 </td>
+                                <td>
+                                    @if (!string.IsNullOrEmpty(item.Location))
+                                    {
+                                        <a href="@Url.Action("Index", new { location = item.Location })"
+                                           class="badge bg-info bg-opacity-10 text-info text-decoration-none"
+                                           onclick="event.stopPropagation();"
+                                           title="Filter by this location">
+                                            <i class="bi bi-geo-alt me-1"></i>@item.Location
+                                        </a>
+                                    }
+                                    else
+                                    {
+                                        <span class="text-muted">&mdash;</span>
+                                    }
+                                </td>
                                 <td>
                                     @if (!string.IsNullOrEmpty(item.PrimaryVendorName))
                                     {
@@ -352,6 +392,15 @@
                                         <span class="mobile-card-value">@item.ColorName</span>
                                     </div>
                                 }
+                                @if (!string.IsNullOrEmpty(item.Location))
+                                {
+                                    <div class="mobile-card-row">
+                                        <span class="mobile-card-label">Location</span>
+                                        <span class="mobile-card-value">
+                                            <i class="bi bi-geo-alt me-1 text-info"></i>@item.Location
+                                        </span>
+                                    </div>
+                                }
                                 @if (!string.IsNullOrEmpty(item.PrimaryVendorName))
                                 {
                                     <div class="mobile-card-row">

src/PowderCoating.Web/Views/Inventory/PrintBin.cshtml

@@ -0,0 +1,98 @@
+@model IEnumerable<PowderCoating.Application.DTOs.Inventory.InventoryListDto>
+@{
+    Layout = null;
+    var location  = ViewBag.Location as string ?? "";
+    var printedAt = (DateTime)(ViewBag.PrintedAt ?? DateTime.Now);
+    var items     = Model.ToList();
+}
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <title>Bin @location &mdash; Inventory</title>
+    <style>
+        * { box-sizing: border-box; margin: 0; padding: 0; }
+        body { font-family: Arial, Helvetica, sans-serif; font-size: 11pt; color: #111; background: #fff; padding: 20px; }
+        .header { display: flex; justify-content: space-between; align-items: flex-start; border-bottom: 2px solid #333; padding-bottom: 10px; margin-bottom: 14px; }
+        .header h1 { font-size: 18pt; }
+        .header .meta { font-size: 9pt; color: #555; text-align: right; line-height: 1.6; }
+        .summary { font-size: 9.5pt; color: #444; margin-bottom: 14px; }
+        table { width: 100%; border-collapse: collapse; }
+        thead th { background: #f0f0f0; border-top: 1px solid #bbb; border-bottom: 1px solid #bbb; padding: 6px 8px; text-align: left; font-size: 9pt; font-weight: 700; text-transform: uppercase; letter-spacing: .03em; }
+        tbody td { padding: 5px 8px; border-bottom: 1px solid #e0e0e0; vertical-align: middle; font-size: 10pt; }
+        tbody tr:last-child td { border-bottom: 2px solid #bbb; }
+        .qty { text-align: right; font-weight: 600; }
+        .qty.low { color: #c00; }
+        .qty.out { color: #888; }
+        .reorder { text-align: right; color: #555; }
+        .cost { text-align: right; }
+        .status-low  { font-size: 8pt; color: #c00; font-weight: 600; }
+        .status-out  { font-size: 8pt; color: #888; font-weight: 600; }
+        .footer { margin-top: 18px; font-size: 8.5pt; color: #888; border-top: 1px solid #ddd; padding-top: 8px; display: flex; justify-content: space-between; }
+        @@media print {
+            body { padding: 10px; }
+            .no-print { display: none !important; }
+            a { text-decoration: none; color: inherit; }
+        }
+    </style>
+</head>
+<body>
+
+<div class="no-print" style="margin-bottom:16px;">
+    <button onclick="window.print()" style="padding:6px 16px;font-size:11pt;cursor:pointer;margin-right:8px;">
+        &#128438; Print
+    </button>
+    <a href="javascript:history.back()" style="font-size:10pt;color:#0d6efd;">&larr; Back</a>
+</div>
+
+<div class="header">
+    <div>
+        <h1>Bin: @location</h1>
+        <div style="font-size:10pt;color:#555;margin-top:4px;">Inventory count sheet</div>
+    </div>
+    <div class="meta">
+        Powder Coating Logix<br />
+        Printed: @printedAt.ToString("MMM d, yyyy  h:mm tt")<br />
+        @items.Count item@(items.Count == 1 ? "" : "s")
+    </div>
+</div>
+
+@if (!items.Any())
+{
+    <p style="color:#888;margin-top:20px;">No active inventory items found in this location.</p>
+}
+else
+{
+    <table>
+        <thead>
+            <tr>
+                <th style="width:5%">#</th>
+                <th style="width:45%">Item Name</th>
+                <th style="width:25%">Color</th>
+                <th style="width:25%">SKU</th>
+            </tr>
+        </thead>
+        <tbody>
+            @{ var row = 0; }
+            @foreach (var item in items)
+            {
+                row++;
+                <tr>
+                    <td style="color:#aaa;font-size:9pt;">@row</td>
+                    <td><strong>@item.Name</strong></td>
+                    <td>@(item.ColorName ?? "&mdash;")</td>
+                    <td style="font-family:monospace;font-size:9.5pt;">@item.SKU</td>
+                </tr>
+            }
+        </tbody>
+    </table>
+}
+
+<div class="footer">
+    <span>Bin: @location</span>
+    <span>Powder Coating Logix &mdash; @printedAt.ToString("yyyy")</span>
+</div>
+
+</body>
+</html>