Format Log Material dropdown as 'Manufacturer - Name (UoM)'

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/PowderCoating.Application/DTOs/Job/JobDtos.cs

@@ -389,7 +389,7 @@ public class CompleteJobDto
 {
     public int JobId { get; set; }
     public decimal? ActualTimeSpentHours { get; set; }
-    public List<JobItemCoatUsageDto> CoatUsages { get; set; } = new();
+    public List<JobPowderUsageDto> PowderUsages { get; set; } = new();
     public bool SendEmailToCustomer { get; set; } = false;
 }
 
@@ -400,10 +400,10 @@ public class SendJobSmsRequest
     public string Message { get; set; } = string.Empty;
 }
 
-// DTO for tracking actual powder usage per coat
-public class JobItemCoatUsageDto
+// DTO for tracking actual powder usage per inventory item (color) for the whole job
+public class JobPowderUsageDto
 {
-    public int JobItemCoatId { get; set; }
+    public int InventoryItemId { get; set; }
     public decimal? ActualPowderUsedLbs { get; set; }
 }
 

src/PowderCoating.Web/Controllers/InvoicesController.cs

@@ -340,13 +340,14 @@ public class InvoicesController : Controller
             var costs = await _unitOfWork.CompanyOperatingCosts
                 .FirstOrDefaultAsync(c => c.CompanyId == currentUser.CompanyId && !c.IsDeleted);
 
+            var defaultTerms = prefs?.DefaultPaymentTerms ?? "Net 30";
             var dto = new CreateInvoiceDto
             {
                 PreparedById = currentUser.Id,
                 InvoiceDate = DateTime.Today,
-                DueDate = DateTime.Today.AddDays(prefs?.DefaultTurnaroundDays ?? 30),
+                DueDate = PaymentTermsParser.CalculateDueDate(defaultTerms, DateTime.Today),
                 TaxPercent = costs?.TaxPercent ?? 0,
-                Terms = prefs?.DefaultPaymentTerms ?? "Net 30"
+                Terms = defaultTerms
             };
 
             if (jobId.HasValue)
@@ -378,6 +379,13 @@ public class InvoicesController : Controller
                 var defaultRevenueAccount = await _unitOfWork.Accounts
                     .FirstOrDefaultAsync(a => a.AccountNumber == "4000" && a.IsActive);
 
+                // Deserialize the job's pricing snapshot up front — it is authoritative for discount,
+                // tax, and fees for both quote-based and direct jobs, because it is recalculated on
+                // every save and reflects any edits made after quote conversion.
+                QuotePricingBreakdownDto? jobBreakdown = null;
+                if (!string.IsNullOrEmpty(job.PricingBreakdownJson))
+                    jobBreakdown = JsonSerializer.Deserialize<QuotePricingBreakdownDto>(job.PricingBreakdownJson);
+
                 // If the job came from a quote, load it so we can use the agreed pricing.
                 // The quote stores the approved total including oven batch cost and shop supplies —
                 // these are quote-level charges that are NOT stored on individual job items.
@@ -461,17 +469,15 @@ public class InvoicesController : Controller
                         });
                     }
 
-                    // Use the quote's agreed tax rate and discount — not current company defaults
-                    dto.TaxPercent = sourceQuote.TaxPercent;
+                    // Use the quote's agreed tax rate and discount — these represent the customer-approved
+                    // price and must not be recomputed from the job's current state.
+                    dto.TaxPercent     = sourceQuote.TaxPercent;
                     dto.DiscountAmount = sourceQuote.DiscountAmount;
                 }
                 else if (hadJobItems)
                 {
                     // Direct job — no source quote. Read all charges from the pricing snapshot so the
                     // invoice always matches the total shown on the job's Pricing Summary card.
-                    QuotePricingBreakdownDto? jobBreakdown = null;
-                    if (!string.IsNullOrEmpty(job.PricingBreakdownJson))
-                        jobBreakdown = JsonSerializer.Deserialize<QuotePricingBreakdownDto>(job.PricingBreakdownJson);
 
                     if (job.OvenBatchCost > 0.01m)
                     {
@@ -529,6 +535,22 @@ public class InvoicesController : Controller
                             RevenueAccountId = defaultRevenueAccount?.Id
                         });
                     }
+
+                    dto.DiscountAmount = jobBreakdown?.DiscountAmount ?? 0;
+                }
+
+                // Inherit payment terms from the source quote or the customer — more specific than
+                // the company-wide default set in the outer DTO. Quote terms take priority because
+                // they represent the agreed price; customer terms are next best for direct jobs.
+                var inheritedTerms = sourceQuote?.Terms ?? job.Customer?.PaymentTerms;
+                if (!string.IsNullOrWhiteSpace(inheritedTerms))
+                {
+                    dto.Terms  = inheritedTerms;
+                    dto.DueDate = PaymentTermsParser.CalculateDueDate(inheritedTerms, DateTime.Today)
+                                  ?? dto.DueDate;
+                    var (discPct, discDays) = PaymentTermsParser.ParseEarlyPaymentDiscount(inheritedTerms);
+                    dto.EarlyPaymentDiscountPercent = discPct;
+                    dto.EarlyPaymentDiscountDays    = discDays;
                 }
 
                 // Override tax to 0 for tax-exempt customers, regardless of company default or quote rate

src/PowderCoating.Web/Controllers/JobsController.cs

@@ -498,6 +498,23 @@ public class JobsController : Controller
                 .OrderByDescending(t => t.TransactionDate).ToList();
             ViewBag.MaterialsUsed = allJobTransactions;
 
+            // Inventory items for the manual log-material modal
+            var inventoryItemsForModal = (await _unitOfWork.InventoryItems.GetAllAsync())
+                .OrderBy(i => i.Name)
+                .Select(i => new { i.Id, i.Name, i.Manufacturer, i.UnitOfMeasure, i.QuantityOnHand })
+                .ToList();
+            var jsonOpts = new System.Text.Json.JsonSerializerOptions { PropertyNamingPolicy = System.Text.Json.JsonNamingPolicy.CamelCase };
+            ViewBag.InventoryItemsForModal = System.Text.Json.JsonSerializer.Serialize(inventoryItemsForModal, jsonOpts);
+
+            // IDs of powders already assigned to this job's coats — shown at top of log-material dropdown
+            var jobPowderIds = (jobDto.Items ?? new List<PowderCoating.Application.DTOs.Job.JobItemDto>())
+                .SelectMany(i => i.Coats ?? new List<PowderCoating.Application.DTOs.Job.JobItemCoatDto>())
+                .Where(c => c.InventoryItemId.HasValue)
+                .Select(c => c.InventoryItemId!.Value)
+                .Distinct()
+                .ToList();
+            ViewBag.JobPowderIds = System.Text.Json.JsonSerializer.Serialize(jobPowderIds, jsonOpts);
+
             // Pre-logged powder grouped by InventoryItemId (for Complete Job modal pre-fill)
             ViewBag.PreLoggedPowder = allJobTransactions
                 .GroupBy(t => t.InventoryItemId)
@@ -2648,78 +2665,80 @@ public class JobsController : Controller
                 .GroupBy(t => t.InventoryItemId)
                 .ToDictionary(g => g.Key, g => Math.Abs(g.Sum(t => t.Quantity)));
 
-            // Update actual powder usage for each coat
-            foreach (var coatUsage in dto.CoatUsages)
+            // Process powder usage submitted per inventory item (color) for the whole job.
+            // Distribute entered lbs across coats sharing that InventoryItemId proportionally
+            // by estimated PowderToOrder so per-coat reporting stays meaningful.
+            // One inventory deduction per powder (net of pre-logged credit).
+            if (dto.PowderUsages.Any())
             {
-                var jobItemCoat = await _unitOfWork.JobItemCoats.GetByIdAsync(
-                    coatUsage.JobItemCoatId,
-                    false,
-                    jic => jic.InventoryItem);
+                // Load all coats for the job with their inventory items
+                var allCoats = (await _unitOfWork.JobItemCoats.FindAsync(
+                    jic => jic.JobItem != null && jic.JobItem.JobId == dto.JobId,
+                    false, jic => jic.InventoryItem, jic => jic.JobItem))
+                    .ToList();
 
-                if (jobItemCoat != null)
+                foreach (var powderUsage in dto.PowderUsages)
                 {
-                    jobItemCoat.ActualPowderUsedLbs = coatUsage.ActualPowderUsedLbs;
-                    await _unitOfWork.JobItemCoats.UpdateAsync(jobItemCoat);
+                    if (!powderUsage.ActualPowderUsedLbs.HasValue || powderUsage.ActualPowderUsedLbs.Value <= 0)
+                        continue;
 
-                    _logger.LogInformation("Updated JobItemCoat {CoatId} with {Lbs} lbs actual powder used",
-                        coatUsage.JobItemCoatId, coatUsage.ActualPowderUsedLbs);
+                    var invItemId = powderUsage.InventoryItemId;
+                    var totalActualLbs = powderUsage.ActualPowderUsedLbs.Value;
 
-                    // Deduct powder from inventory if using stock powder
-                    if (jobItemCoat.InventoryItemId.HasValue &&
-                        coatUsage.ActualPowderUsedLbs.HasValue &&
-                        coatUsage.ActualPowderUsedLbs.Value > 0)
+                    // Distribute across coats using this powder proportionally by estimated lbs
+                    var coatsForPowder = allCoats.Where(c => c.InventoryItemId == invItemId).ToList();
+                    if (coatsForPowder.Any())
                     {
-                        var invItemId = jobItemCoat.InventoryItemId.Value;
-                        var actualLbs = coatUsage.ActualPowderUsedLbs.Value;
-
-                        // Apply available pre-logged credit so we don't double-deduct
-                        var credit = preLoggedCredit.GetValueOrDefault(invItemId, 0m);
-                        var deductNow = Math.Max(0m, actualLbs - credit);
-                        // Consume credit (other coats sharing the same powder get whatever remains)
-                        preLoggedCredit[invItemId] = Math.Max(0m, credit - actualLbs);
-
-                        if (deductNow > 0)
+                        var totalEstimated = coatsForPowder.Sum(c => c.PowderToOrder ?? 0m);
+                        foreach (var coat in coatsForPowder)
                         {
-                            var inventoryItem = await _unitOfWork.InventoryItems.GetByIdAsync(invItemId);
-                            if (inventoryItem != null)
-                            {
-                                var transaction = new InventoryTransaction
-                                {
-                                    InventoryItemId = inventoryItem.Id,
-                                    TransactionType = InventoryTransactionType.JobUsage,
-                                    Quantity = -deductNow,
-                                    UnitCost = inventoryItem.UnitCost,
-                                    TotalCost = inventoryItem.UnitCost * deductNow,
-                                    TransactionDate = DateTime.UtcNow,
-                                    JobId = job.Id,
-                                    Reference = job.JobNumber,
-                                    Notes = $"Powder used for Job {job.JobNumber} - {jobItemCoat.CoatName} ({jobItemCoat.ColorName ?? "N/A"}) by {currentUser!.FirstName} {currentUser.LastName}",
-                                    BalanceAfter = inventoryItem.QuantityOnHand - deductNow,
-                                    CompanyId = job.CompanyId
-                                };
-
-                                await _unitOfWork.InventoryTransactions.AddAsync(transaction);
-                                inventoryItem.QuantityOnHand -= deductNow;
-                                await _unitOfWork.InventoryItems.UpdateAsync(inventoryItem);
-
-                                // GL: DR COGS, CR Inventory Asset (accrual) — no-op if accounts not configured
-                                if (inventoryItem.CogsAccountId.HasValue && inventoryItem.InventoryAccountId.HasValue)
-                                {
-                                    var cost = deductNow * (inventoryItem.AverageCost > 0 ? inventoryItem.AverageCost : inventoryItem.UnitCost);
-                                    await _accountBalanceService.DebitAsync(inventoryItem.CogsAccountId, cost);
-                                    await _accountBalanceService.CreditAsync(inventoryItem.InventoryAccountId, cost);
-                                }
-
-                                _logger.LogInformation(
-                                    "Deducted {Lbs} lbs (net of pre-logged) of {Item} from inventory for Job {JobNumber}. New quantity: {NewQty}",
-                                    deductNow, inventoryItem.Name, job.JobNumber, inventoryItem.QuantityOnHand);
-                            }
+                            var share = totalEstimated > 0
+                                ? totalActualLbs * ((coat.PowderToOrder ?? 0m) / totalEstimated)
+                                : totalActualLbs / coatsForPowder.Count;
+                            coat.ActualPowderUsedLbs = Math.Round(share, 4);
+                            await _unitOfWork.JobItemCoats.UpdateAsync(coat);
                         }
-                        else
+                    }
+
+                    // Single inventory deduction for the whole powder, net of pre-logged credit
+                    var credit = preLoggedCredit.GetValueOrDefault(invItemId, 0m);
+                    var deductNow = Math.Max(0m, totalActualLbs - credit);
+                    preLoggedCredit[invItemId] = 0m;
+
+                    if (deductNow > 0)
+                    {
+                        var inventoryItem = await _unitOfWork.InventoryItems.GetByIdAsync(invItemId);
+                        if (inventoryItem != null)
                         {
+                            inventoryItem.QuantityOnHand -= deductNow;
+                            await _unitOfWork.InventoryItems.UpdateAsync(inventoryItem);
+
+                            var transaction = new InventoryTransaction
+                            {
+                                InventoryItemId = inventoryItem.Id,
+                                TransactionType = InventoryTransactionType.JobUsage,
+                                Quantity        = -deductNow,
+                                UnitCost        = inventoryItem.UnitCost,
+                                TotalCost       = inventoryItem.UnitCost * deductNow,
+                                TransactionDate = DateTime.UtcNow,
+                                JobId           = job.Id,
+                                Reference       = job.JobNumber,
+                                Notes           = $"Powder used for Job {job.JobNumber} by {currentUser!.FirstName} {currentUser.LastName}",
+                                BalanceAfter    = inventoryItem.QuantityOnHand,
+                                CompanyId       = job.CompanyId
+                            };
+                            await _unitOfWork.InventoryTransactions.AddAsync(transaction);
+
+                            if (inventoryItem.CogsAccountId.HasValue && inventoryItem.InventoryAccountId.HasValue)
+                            {
+                                var cost = deductNow * (inventoryItem.AverageCost > 0 ? inventoryItem.AverageCost : inventoryItem.UnitCost);
+                                await _accountBalanceService.DebitAsync(inventoryItem.CogsAccountId, cost);
+                                await _accountBalanceService.CreditAsync(inventoryItem.InventoryAccountId, cost);
+                            }
+
                             _logger.LogInformation(
-                                "Skipped inventory deduction for JobItemCoat {CoatId} — {Lbs} lbs already pre-logged for inventory item {InvItemId}",
-                                coatUsage.JobItemCoatId, actualLbs, invItemId);
+                                "Deducted {Lbs} lbs (net of pre-logged) of {Item} from inventory for Job {JobNumber}. New quantity: {NewQty}",
+                                deductNow, inventoryItem.Name, job.JobNumber, inventoryItem.QuantityOnHand);
                         }
                     }
                 }
@@ -4080,9 +4099,87 @@ public class JobsController : Controller
 
         _logger.LogInformation("Recorded first job creation for company {CompanyId}", companyId);
     }
+
+    /// <summary>
+    /// Logs manual material usage from the job details page. Mirrors the QR scan LogUsage
+    /// flow in InventoryController but returns JSON so the modal can close and refresh inline.
+    /// Quantity is always the amount USED (caller converts from remaining if needed).
+    /// </summary>
+    [HttpPost]
+    [ValidateAntiForgeryToken]
+    public async Task<IActionResult> LogMaterial([FromBody] LogMaterialRequest req)
+    {
+        try
+        {
+            if (req.QuantityUsed <= 0)
+                return Json(new { success = false, message = "Quantity used must be greater than zero." });
+
+            var item = await _unitOfWork.InventoryItems.GetByIdAsync(req.InventoryItemId);
+            if (item == null) return Json(new { success = false, message = "Inventory item not found." });
+
+            var job = await _unitOfWork.Jobs.GetByIdAsync(req.JobId);
+            if (job == null) return Json(new { success = false, message = "Job not found." });
+
+            var txnType = req.TransactionType == "Waste"
+                ? InventoryTransactionType.Waste
+                : InventoryTransactionType.JobUsage;
+
+            item.QuantityOnHand -= req.QuantityUsed;
+            item.UpdatedAt = DateTime.UtcNow;
+            await _unitOfWork.InventoryItems.UpdateAsync(item);
+
+            var txn = new PowderCoating.Core.Entities.InventoryTransaction
+            {
+                InventoryItemId = item.Id,
+                TransactionType = txnType,
+                Quantity        = -req.QuantityUsed,
+                UnitCost        = item.UnitCost,
+                TotalCost       = req.QuantityUsed * item.UnitCost,
+                TransactionDate = DateTime.UtcNow,
+                BalanceAfter    = item.QuantityOnHand,
+                JobId           = req.JobId,
+                Reference       = $"Job {job.JobNumber}",
+                Notes           = req.Notes?.Trim(),
+                CompanyId       = item.CompanyId,
+                CreatedAt       = DateTime.UtcNow
+            };
+            await _unitOfWork.InventoryTransactions.AddAsync(txn);
+            await _unitOfWork.CompleteAsync();
+
+            // GL: DR COGS, CR Inventory Asset
+            if (item.CogsAccountId.HasValue && item.InventoryAccountId.HasValue)
+            {
+                var cost = req.QuantityUsed * (item.AverageCost > 0 ? item.AverageCost : item.UnitCost);
+                await _accountBalanceService.DebitAsync(item.CogsAccountId, cost);
+                await _accountBalanceService.CreditAsync(item.InventoryAccountId, cost);
+            }
+
+            return Json(new
+            {
+                success    = true,
+                message    = $"Logged {req.QuantityUsed:N2} {item.UnitOfMeasure} of {item.Name}.",
+                newBalance = item.QuantityOnHand,
+                unitOfMeasure = item.UnitOfMeasure,
+                itemName   = item.Name
+            });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Error logging material for job {JobId}", req.JobId);
+            return Json(new { success = false, message = "An error occurred. Please try again." });
+        }
+    }
 }
 
 public class DeleteTimeEntryRequest { public int Id { get; set; } }
+public class LogMaterialRequest
+{
+    public int     JobId           { get; set; }
+    public int     InventoryItemId { get; set; }
+    public decimal QuantityUsed    { get; set; }
+    public string  TransactionType { get; set; } = "JobUsage";
+    public string? Notes           { get; set; }
+}
 public class CreateReworkJobRequest { public int ReworkRecordId { get; set; } public string? Notes { get; set; } }
 
 public class UpdateWorkerAssignmentRequest

src/PowderCoating.Web/Helpers/HelpKnowledgeBase.cs

@@ -302,7 +302,7 @@ public static class HelpKnowledgeBase
 
         **Changing the customer on a job:** On the Job Details page, the Customer field is an always-visible dropdown. Select a different customer — a confirmation banner appears. Click **Save** to apply or **Cancel** to revert. Use this to correct a misassigned job or to move a walk-in job to a customer's proper record after they've been added to the system.
 
-        **Creating an invoice from a job:** On the Job Details page, look for the Invoice section and click "Create Invoice."
+        **Creating an invoice from a job:** On the Job Details page, look for the Invoice section and click "Create Invoice." The system pre-fills all line items, pricing, discount, tax rate, payment terms, and due date from the job and customer automatically. Review the Totals panel on the right — if a discount was applied to the job it will show as a red "Discount Applied" line. Adjust anything you need, then save.
 
         **Work Order QR Codes:** Every printed job work order includes two tiers of QR codes — one for viewing the job, and a separate set for taking action on it. All QR codes require the worker to be logged in.
 
@@ -314,6 +314,8 @@ public static class HelpKnowledgeBase
 
         All QR codes require login — workers must have an active account. Logging in once on their phone is sufficient for the session.
 
+        **Logging material usage from a PC (without QR scan):** On the Job Details page, expand the Materials Used section and click **Log Material**. A modal opens where you can: select any inventory item from a dropdown (current stock level shown), choose whether to enter the amount used or the amount remaining (the system calculates usage automatically), pick a reason (Job Usage or Waste/Spillage), and add optional notes. Saves immediately and updates inventory on hand.
+
         **Blank Work Order:** Print a pre-formatted paper work order to hand to a walk-in customer before creating a digital job record.
         - Access: Jobs list page → printer icon button "Blank Work Order" in the top-right toolbar. Or navigate directly to /WorkOrder/Blank.
         - The PDF opens in a new tab ready to print. It includes: company logo and address, Drop Off Date field, Client Name / Client Phone / Due Date fields, 12-row parts table (Part Description / Color / Quote), Notes box, customizable Terms & Conditions text, and a Customer Signature line.

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

@@ -48,8 +48,9 @@
             <ol class="mb-3">
                 <li class="mb-2">Open the job from <strong>Operations &rsaquo; Jobs</strong> and go to its Details page.</li>
                 <li class="mb-2">Scroll to the <strong>Invoice</strong> section near the bottom of the page.</li>
-                <li class="mb-2">Click <strong>Create Invoice</strong>. The system generates an invoice pre-filled with all the job's line items and the final pricing.</li>
-                <li class="mb-2">Review the invoice — check line items, totals, and the due date — then click <strong>Save Invoice</strong>.</li>
+                <li class="mb-2">Click <strong>Create Invoice</strong>. The system pre-fills all line items, the discount, tax rate, payment terms, and due date from the job and customer automatically.</li>
+                <li class="mb-2">Review the <strong>Totals</strong> panel on the right &mdash; if a discount was applied to the job it shows as a red <em>Discount Applied</em> line below the subtotal. Negative line items are allowed if you need to apply a manual credit or price adjustment.</li>
+                <li class="mb-2">Adjust anything you need, then click <strong>Save Invoice</strong>.</li>
             </ol>
 
             <h3 class="h6 fw-semibold mt-3 mb-2">From the Invoices list (manual)</h3>
@@ -139,7 +140,7 @@
                 <li class="mb-2">Open the invoice from <strong>Operations &rsaquo; Invoices</strong> or from the job's Details page.</li>
                 <li class="mb-2">Click <strong>Send Invoice</strong>. The status changes from Draft to Sent.</li>
                 <li class="mb-2">If email notifications are configured, the customer receives an email with the invoice details and total due.</li>
-                <li class="mb-2">A due date is set automatically based on the customer's payment terms (e.g., Net 30 means the due date is 30 days from today).</li>
+                <li class="mb-2">The due date and payment terms are pre-filled from the source quote (if the job came from a quote) or the customer&rsquo;s payment terms &mdash; you can always override them before saving.</li>
             </ol>
             <p>
                 You can also click <strong>Download PDF</strong> on any invoice to generate a print-ready PDF

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

@@ -607,13 +607,28 @@
                 no anonymous bumps.
             </p>
 
-            <h3 class="h6 fw-semibold mt-3 mb-2"><i class="bi bi-box-seam me-1"></i>Bottom QR — Log Powder Usage</h3>
+            <h3 class="h6 fw-semibold mt-3 mb-2"><i class="bi bi-box-seam me-1"></i>Bottom QR &mdash; Log Powder Usage</h3>
             <p>
                 One QR per unique powder on the job. Scanning opens the inventory usage log page pre-filled
                 with that powder and the job number, so you can record actual lbs used in seconds without
                 navigating through the app.
             </p>
 
+            <h3 class="h6 fw-semibold mt-3 mb-2"><i class="bi bi-droplet-half me-1"></i>Logging Material Usage from a PC</h3>
+            <p>
+                You don&rsquo;t need a phone or QR code to log material usage. On the Job Details page, expand the
+                <strong>Materials Used</strong> section and click <strong>Log Material</strong>. A modal opens where you can:
+            </p>
+            <ul class="mb-2">
+                <li>Select any inventory item from a searchable dropdown &mdash; the item&rsquo;s current stock level is shown when you pick it.</li>
+                <li>Choose <strong>Amount Used</strong> (enter how much was consumed) or <strong>Amount Remaining</strong> (enter what&rsquo;s left in the bag &mdash; the system calculates the usage automatically).</li>
+                <li>Pick a reason: <em>Job Usage</em> or <em>Waste / Spillage</em>.</li>
+                <li>Add optional notes.</li>
+            </ul>
+            <p>
+                Saving immediately reduces the item&rsquo;s stock on hand and creates an entry in the Inventory Activity ledger, exactly like a QR scan would. The QR scan icon is still available next to the button for mobile workers.
+            </p>
+
             <div class="alert alert-permanent alert-info d-flex gap-2 mb-0" role="alert">
                 <i class="bi bi-lock flex-shrink-0 mt-1"></i>
                 <div>

src/PowderCoating.Web/Views/Invoices/Create.cshtml

@@ -283,13 +283,13 @@
                                         <td class="text-end">
                                             <input type="number" name="InvoiceItems[@i].UnitPrice"
                                                    class="form-control form-control-sm text-end unit-price-input"
-                                                   value="@item.UnitPrice.ToString("F2")" min="0" step="0.01"
+                                                   value="@item.UnitPrice.ToString("F2")" step="0.01"
                                                    onchange="recalcRow(this)" oninput="recalcRow(this)" />
                                         </td>
                                         <td class="text-end">
                                             <input type="number" name="InvoiceItems[@i].TotalPrice"
                                                    class="form-control form-control-sm text-end total-price-input"
-                                                   value="@item.TotalPrice.ToString("F2")" min="0" step="0.01"
+                                                   value="@item.TotalPrice.ToString("F2")" step="0.01"
                                                    oninput="recalcTotals()" />
                                         </td>
                                         <td class="text-center">
@@ -371,6 +371,10 @@
                         <input asp-for="DiscountAmount" type="number" class="form-control form-control-sm text-end"
                                min="0" step="0.01" oninput="recalcTotals()" />
                     </div>
+                    <div id="discountRow" class="d-flex justify-content-between mb-1 d-none">
+                        <span class="text-muted small">Discount Applied</span>
+                        <span id="displayDiscount" class="small text-danger">&minus;$0.00</span>
+                    </div>
                     <div class="mb-2">
                         <div class="d-flex justify-content-between align-items-center mb-1">
                             <label class="form-label mb-0 text-muted">Tax (%)</label>
@@ -725,13 +729,13 @@
             <td class="text-end">
                 <input type="number" name="InvoiceItems[${idx}].UnitPrice"
                        class="form-control form-control-sm text-end unit-price-input"
-                       value="${unitPrice.toFixed(2)}" min="0" step="0.01"
+                       value="${unitPrice.toFixed(2)}" step="0.01"
                        onchange="recalcRow(this)" oninput="recalcRow(this)" />
             </td>
             <td class="text-end">
                 <input type="number" name="InvoiceItems[${idx}].TotalPrice"
                        class="form-control form-control-sm text-end total-price-input"
-                       value="${total}" min="0" step="0.01"
+                       value="${total}" step="0.01"
                        oninput="recalcTotals()" />
             </td>
             <td class="text-center">
@@ -797,6 +801,15 @@
         const total = taxableAmount + tax;
 
         document.getElementById('displaySubtotal').textContent = formatCurrency(subtotal);
+        const discountRow = document.getElementById('discountRow');
+        if (discountRow) {
+            if (discount > 0) {
+                document.getElementById('displayDiscount').textContent = '−' + formatCurrency(discount);
+                discountRow.classList.remove('d-none');
+            } else {
+                discountRow.classList.add('d-none');
+            }
+        }
         document.getElementById('displayTax').textContent = formatCurrency(tax);
         document.getElementById('displayTotal').textContent = formatCurrency(total);
     }

src/PowderCoating.Web/Views/Jobs/Details.cshtml

@@ -1016,9 +1016,12 @@
                                 <span class="badge bg-primary rounded-pill ms-1">@materialsUsed.Count</span>
                             }
                             <i class="bi bi-chevron-down collapse-chevron ms-1" style="transition:transform .2s;"></i>
-                            <span class="ms-auto">
-                                <a asp-controller="Inventory" asp-action="Scan" class="btn btn-sm btn-outline-primary" onclick="event.stopPropagation();">
-                                    <i class="bi bi-qr-code-scan me-1"></i>Log Material
+                            <span class="ms-auto d-flex gap-2">
+                                <button type="button" class="btn btn-sm btn-outline-primary" onclick="event.stopPropagation(); openLogMaterialModal();">
+                                    <i class="bi bi-plus-circle me-1"></i>Log Material
+                                </button>
+                                <a asp-controller="Inventory" asp-action="Scan" class="btn btn-sm btn-outline-secondary" onclick="event.stopPropagation();" title="Scan QR code">
+                                    <i class="bi bi-qr-code-scan"></i>
                                 </a>
                             </span>
                         </div>
@@ -1028,7 +1031,7 @@
                         {
                             <div class="card-body text-muted text-center py-3 small">
                                 <i class="bi bi-droplet me-1"></i>No materials have been logged for this job yet.
-                                Use the QR label on an inventory item to log usage.
+                                Click <strong>Log Material</strong> above or scan the QR label on an inventory item.
                             </div>
                         }
                         else
@@ -1089,6 +1092,78 @@
                     </div><!-- /collapseMaterials -->
                 </div>
 
+                <!-- Log Material Modal -->
+                <div class="modal fade" id="logMaterialModal" tabindex="-1" aria-labelledby="logMaterialModalLabel" aria-hidden="true">
+                    <div class="modal-dialog">
+                        <div class="modal-content">
+                            <div class="modal-header">
+                                <h5 class="modal-title" id="logMaterialModalLabel">
+                                    <i class="bi bi-droplet-half me-2 text-primary"></i>Log Material Usage
+                                </h5>
+                                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+                            </div>
+                            <div class="modal-body">
+                                <div class="mb-3">
+                                    <label class="form-label fw-semibold">Inventory Item <span class="text-danger">*</span></label>
+                                    <div class="position-relative">
+                                        <div class="input-group">
+                                            <input type="text" class="form-control" id="lmItemSearch"
+                                                   placeholder="Search by name or manufacturer&hellip;" autocomplete="off"
+                                                   oninput="lmComboInput()"
+                                                   onfocus="lmComboOpen()"
+                                                   onkeydown="lmComboKey(event)">
+                                            <button class="btn btn-outline-secondary" type="button" tabindex="-1"
+                                                    id="lmItemDropdownToggle" onclick="lmComboToggle()">
+                                                <i class="bi bi-chevron-down" style="font-size:.75rem;"></i>
+                                            </button>
+                                        </div>
+                                        <div id="lmItemDropdown"
+                                             style="display:none;max-height:220px;overflow-y:auto;z-index:1070;background:#fff;border:1px solid rgba(0,0,0,.15);border-radius:.375rem;box-shadow:0 4px 12px rgba(0,0,0,.12);">
+                                        </div>
+                                    </div>
+                                    <div id="lmItemBalance" class="form-text text-muted d-none"></div>
+                                </div>
+                                <div class="mb-3">
+                                    <label class="form-label fw-semibold">Entry Method</label>
+                                    <div class="d-flex gap-3">
+                                        <div class="form-check">
+                                            <input class="form-check-input" type="radio" name="lmEntryMethod" id="lmMethodUsed" value="used" checked onchange="lmUpdateQuantityLabel()">
+                                            <label class="form-check-label" for="lmMethodUsed">Amount Used</label>
+                                        </div>
+                                        <div class="form-check">
+                                            <input class="form-check-input" type="radio" name="lmEntryMethod" id="lmMethodRemaining" value="remaining" onchange="lmUpdateQuantityLabel()">
+                                            <label class="form-check-label" for="lmMethodRemaining">Amount Remaining</label>
+                                        </div>
+                                    </div>
+                                </div>
+                                <div class="mb-3">
+                                    <label id="lmQtyLabel" class="form-label fw-semibold">Quantity Used <span class="text-danger">*</span></label>
+                                    <input type="number" id="lmQuantity" class="form-control" min="0" step="0.01" placeholder="0.00">
+                                    <div id="lmComputedUsed" class="form-text text-muted d-none"></div>
+                                </div>
+                                <div class="mb-3">
+                                    <label class="form-label fw-semibold">Reason</label>
+                                    <select id="lmTransactionType" class="form-select">
+                                        <option value="JobUsage">Job Usage</option>
+                                        <option value="Waste">Waste / Spillage</option>
+                                    </select>
+                                </div>
+                                <div class="mb-3">
+                                    <label class="form-label fw-semibold">Notes</label>
+                                    <textarea id="lmNotes" class="form-control" rows="2" placeholder="Optional"></textarea>
+                                </div>
+                                <div id="lmAlert" class="alert alert-permanent d-none"></div>
+                            </div>
+                            <div class="modal-footer">
+                                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancel</button>
+                                <button type="button" class="btn btn-primary" id="lmSaveBtn" onclick="lmSave()">
+                                    <i class="bi bi-check-circle me-1"></i>Log Usage
+                                </button>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+
                 <!-- Part Intake Modal -->
                 @{
                     var intakeExpectedCount = Model.Items?.Sum(i => (int)i.Quantity) ?? 0;
@@ -3082,6 +3157,19 @@
     }
 }
 
+<!-- Log Material Modal JS -->
+<script src="/js/log-material.js"></script>
+<script>
+(function () {
+    const inventoryItems = @Html.Raw(ViewBag.InventoryItemsForModal ?? "[]");
+    const jobPowderIds  = @Html.Raw(ViewBag.JobPowderIds ?? "[]");
+    const jobId = @Model.Id;
+    const logUrl = '@Url.Action("LogMaterial", "Jobs")';
+    const token = document.querySelector('input[name="__RequestVerificationToken"]')?.value ?? '';
+    window.__logMaterial = { inventoryItems, jobPowderIds, jobId, logUrl, token };
+})();
+</script>
+
 <!-- Save as Template Modal -->
 <div class="modal fade" id="saveTemplateModal" tabindex="-1" aria-labelledby="saveTemplateModalLabel" aria-hidden="true">
     <div class="modal-dialog">

src/PowderCoating.Web/Views/Jobs/_CompleteJobModal.cshtml

@@ -2,8 +2,21 @@
 @{
     var emailDefault = ViewBag.EmailDefaultOnComplete == true;
     var preLoggedPowder = ViewBag.PreLoggedPowder as Dictionary<int, decimal> ?? new Dictionary<int, decimal>();
-    // Track remaining credit per InventoryItemId as we allocate it across coat rows
-    var remainingCredit = preLoggedPowder.ToDictionary(kv => kv.Key, kv => kv.Value);
+
+    // Group all coats by inventory item so we ask once per powder color, not once per item/coat
+    var powderGroups = (Model.Items ?? new List<PowderCoating.Application.DTOs.Job.JobItemDto>())
+        .SelectMany(i => i.Coats ?? new List<PowderCoating.Application.DTOs.Job.JobItemCoatDto>())
+        .Where(c => c.InventoryItemId.HasValue)
+        .GroupBy(c => c.InventoryItemId!.Value)
+        .Select(g => new {
+            InventoryItemId  = g.Key,
+            ColorName        = g.First().ColorName,
+            ColorCode        = g.First().ColorCode,
+            TotalEstimatedLbs = g.Sum(c => c.PowderToOrder ?? 0m),
+            PreLogged        = preLoggedPowder.GetValueOrDefault(g.Key, 0m)
+        })
+        .OrderBy(g => g.ColorName)
+        .ToList();
 }
 <div class="modal fade" id="completeJobModal" tabindex="-1">
     <div class="modal-dialog modal-dialog-centered modal-lg">
@@ -27,102 +40,59 @@
                         <div class="form-text">Enter the total time in hours (e.g., 2.5 for 2 hours 30 minutes)</div>
                     </div>
 
-                    @if (Model.Items != null && Model.Items.Any())
+                    @if (powderGroups.Any())
                     {
                         <div class="mb-3">
-                            <h6 class="fw-semibold mb-3">
+                            <h6 class="fw-semibold mb-1">
                                 <i class="bi bi-palette me-1 text-primary"></i>Actual Powder Usage
                             </h6>
+                            <p class="text-muted small mb-3">Enter total lbs used per powder color for the entire job.</p>
                             <div class="table-responsive">
                                 <table class="table table-sm table-hover">
                                     <thead class="table-light">
                                         <tr>
-                                            <th>Item</th>
-                                            <th>Coat</th>
-                                            <th>Color</th>
+                                            <th>Color / Powder</th>
                                             <th class="text-end">Estimated (lbs)</th>
-                                            <th>Actual (lbs)</th>
+                                            <th style="width:150px">Actual Used (lbs)</th>
                                         </tr>
                                     </thead>
                                     <tbody>
-                                        @{
-                                            var coatIndex = 0;
-                                        }
-                                        @foreach (var item in Model.Items)
+                                        @for (int i = 0; i < powderGroups.Count; i++)
                                         {
-                                            if (item.Coats != null && item.Coats.Any())
-                                            {
-                                                foreach (var coat in item.Coats.OrderBy(c => c.Sequence))
-                                                {
-                                                    <tr>
-                                                        <td>
-                                                            <small>@item.Description</small>
-                                                            @if (item.Quantity > 1)
-                                                            {
-                                                                <span class="badge bg-secondary ms-1">&times;@item.Quantity</span>
-                                                            }
-                                                        </td>
-                                                        <td><span class="badge bg-secondary">@coat.CoatName</span></td>
-                                                        <td>
-                                                            @if (!string.IsNullOrEmpty(coat.ColorName))
-                                                            {
-                                                                <small>
-                                                                    @coat.ColorName
-                                                                    @if (!string.IsNullOrEmpty(coat.ColorCode))
-                                                                    {
-                                                                        <span class="text-muted">(@coat.ColorCode)</span>
-                                                                    }
-                                                                </small>
-                                                            }
-                                                        </td>
-                                                        <td class="text-end">
-                                                            <small class="text-muted">@((coat.PowderToOrder ?? 0).ToString("0.##"))</small>
-                                                        </td>
-                                                        <td>
-                                                            @{
-                                                                decimal preFilledLbs = 0m;
-                                                                if (coat.InventoryItemId.HasValue && remainingCredit.TryGetValue(coat.InventoryItemId.Value, out var availCredit) && availCredit > 0)
-                                                                {
-                                                                    preFilledLbs = availCredit;
-                                                                    remainingCredit[coat.InventoryItemId.Value] = 0m;
-                                                                }
-                                                            }
-                                                            <input type="hidden" name="CoatUsages[@coatIndex].JobItemCoatId" value="@coat.Id" />
-                                                            <input type="number"
-                                                                   class="form-control form-control-sm"
-                                                                   name="CoatUsages[@coatIndex].ActualPowderUsedLbs"
-                                                                   step="0.01" min="0" placeholder="0.00"
-                                                                   value="@(preFilledLbs > 0 ? preFilledLbs.ToString("0.##") : "")"
-                                                                   style="max-width: 120px;">
-                                                            @if (preFilledLbs > 0)
-                                                            {
-                                                                <small class="text-success d-block mt-1">
-                                                                    <i class="bi bi-check-circle me-1"></i>Already logged — inventory adjusted
-                                                                </small>
-                                                            }
-                                                        </td>
-                                                    </tr>
-                                                    coatIndex++;
-                                                }
-                                            }
-                                            else
-                                            {
-                                                <tr class="table-secondary">
-                                                    <td colspan="5">
-                                                        <small class="text-muted fst-italic">
-                                                            <i class="bi bi-info-circle me-1"></i>
-                                                            @item.Description — No coat information available (legacy job item)
+                                            var pg = powderGroups[i];
+                                            <tr>
+                                                <td>
+                                                    <span class="fw-semibold">@pg.ColorName</span>
+                                                    @if (!string.IsNullOrEmpty(pg.ColorCode))
+                                                    {
+                                                        <small class="text-muted ms-1">(@pg.ColorCode)</small>
+                                                    }
+                                                </td>
+                                                <td class="text-end text-muted small align-middle">
+                                                    @pg.TotalEstimatedLbs.ToString("0.##")
+                                                </td>
+                                                <td>
+                                                    <input type="hidden" name="PowderUsages[@i].InventoryItemId" value="@pg.InventoryItemId" />
+                                                    <input type="number"
+                                                           class="form-control form-control-sm"
+                                                           name="PowderUsages[@i].ActualPowderUsedLbs"
+                                                           step="0.01" min="0" placeholder="0.00"
+                                                           value="@(pg.PreLogged > 0 ? pg.PreLogged.ToString("0.##") : "")">
+                                                    @if (pg.PreLogged > 0)
+                                                    {
+                                                        <small class="text-success d-block mt-1">
+                                                            <i class="bi bi-check-circle me-1"></i>@pg.PreLogged.ToString("0.##") lbs already logged
                                                         </small>
-                                                    </td>
-                                                </tr>
-                                            }
+                                                    }
+                                                </td>
+                                            </tr>
                                         }
                                     </tbody>
                                 </table>
                             </div>
                             <div class="alert alert-info alert-permanent mb-0">
                                 <i class="bi bi-info-circle me-2"></i>
-                                <small>Pre-filled values were already logged via scan — inventory is already adjusted for those. You can edit the amount; only the difference will be applied to inventory.</small>
+                                <small>Pre-filled values were already logged via scan &mdash; inventory is already adjusted for those. You can edit the amount; only the difference will be applied.</small>
                             </div>
                         </div>
                     }

src/PowderCoating.Web/wwwroot/js/log-material.js

@@ -0,0 +1,285 @@
+/**
+ * Log Material Usage modal — job details page.
+ * Reads config from window.__logMaterial injected inline by the view.
+ */
+(function () {
+    let _items = [];
+    let _jobPowderIds = new Set();
+    let _modal = null;
+
+    // ── Combobox state ────────────────────────────────────────────────────────
+    let _selectedItemId = 0;
+
+    function lmComboInput() {
+        const q = document.getElementById('lmItemSearch')?.value?.toLowerCase() || '';
+        lmComboRender(q);
+        lmComboShow();
+        _selectedItemId = 0;
+        document.getElementById('lmItemBalance').classList.add('d-none');
+        lmOnQtyInput();
+    }
+
+    function lmComboOpen() {
+        const q = document.getElementById('lmItemSearch')?.value?.toLowerCase() || '';
+        lmComboRender(q);
+        lmComboShow();
+    }
+
+    function lmComboToggle() {
+        const dd = document.getElementById('lmItemDropdown');
+        if (!dd) return;
+        if (dd.style.display === 'none' || !dd.style.display) {
+            lmComboOpen();
+            document.getElementById('lmItemSearch')?.focus();
+        } else {
+            lmComboClose();
+        }
+    }
+
+    function lmMakeRow(it) {
+        const display = (it.manufacturer ? escLm(it.manufacturer) + ' – ' : '') +
+                        escLm(it.name) +
+                        (it.unitOfMeasure ? ' <span class="text-muted" style="font-size:.82rem;">(' + escLm(it.unitOfMeasure) + ')</span>' : '');
+        const label = (it.manufacturer ? it.manufacturer + ' - ' : '') +
+                      it.name +
+                      (it.unitOfMeasure ? ' (' + it.unitOfMeasure + ')' : '');
+        return `<div class="lm-item-opt" style="padding:.35rem .75rem;font-size:.875rem;cursor:pointer;"
+                     data-id="${it.id}"
+                     data-qty="${it.quantityOnHand}"
+                     data-uom="${escLm(it.unitOfMeasure || '')}"
+                     data-label="${escLm(label)}"
+                     onmousedown="event.preventDefault(); lmComboSelect(this)"
+                     onmouseenter="this.style.background='#f0f4ff'"
+                     onmouseleave="this.classList.contains('lm-active') ? null : this.style.background=''">
+                ${display}
+             </div>`;
+    }
+
+    function lmComboRender(query) {
+        const dd = document.getElementById('lmItemDropdown');
+        if (!dd) return;
+        const filtered = query
+            ? _items.filter(it => it.name.toLowerCase().includes(query) ||
+                                  (it.manufacturer && it.manufacturer.toLowerCase().includes(query)) ||
+                                  (it.unitOfMeasure && it.unitOfMeasure.toLowerCase().includes(query)))
+            : _items;
+        if (filtered.length === 0) {
+            dd.innerHTML = '<div class="px-3 py-2 text-muted small">No items match.</div>';
+            return;
+        }
+
+        const jobItems   = filtered.filter(it => _jobPowderIds.has(it.id));
+        const otherItems = filtered.filter(it => !_jobPowderIds.has(it.id));
+
+        let html = '';
+        if (jobItems.length > 0) {
+            html += '<div class="px-3 py-1 text-muted" style="font-size:.72rem;letter-spacing:.04em;text-transform:uppercase;background:#f8f9fa;border-bottom:1px solid #dee2e6;">This Job</div>';
+            html += jobItems.map(lmMakeRow).join('');
+            if (otherItems.length > 0) {
+                html += '<div style="height:1px;background:#dee2e6;margin:.25rem 0;"></div>';
+                html += '<div class="px-3 py-1 text-muted" style="font-size:.72rem;letter-spacing:.04em;text-transform:uppercase;background:#f8f9fa;border-bottom:1px solid #dee2e6;">All Inventory</div>';
+            }
+        }
+        html += otherItems.map(lmMakeRow).join('');
+        dd.innerHTML = html;
+    }
+
+    function lmComboShow() {
+        const dd = document.getElementById('lmItemDropdown');
+        const anchor = document.getElementById('lmItemSearch');
+        if (!dd || !anchor) return;
+        const rect = anchor.closest('.input-group').getBoundingClientRect();
+        dd.style.position = 'fixed';
+        dd.style.top = (rect.bottom + 2) + 'px';
+        dd.style.left = rect.left + 'px';
+        dd.style.width = rect.width + 'px';
+        dd.style.display = 'block';
+    }
+
+    function lmComboClose() {
+        const dd = document.getElementById('lmItemDropdown');
+        if (dd) dd.style.display = 'none';
+    }
+
+    window.lmComboSelect = function (el) {
+        _selectedItemId = parseInt(el.dataset.id) || 0;
+        document.getElementById('lmItemSearch').value = el.dataset.label;
+        lmComboClose();
+
+        const qty = parseFloat(el.dataset.qty) || 0;
+        const uom = el.dataset.uom;
+        const balDiv = document.getElementById('lmItemBalance');
+        balDiv.textContent = 'Current stock: ' + qty.toFixed(2) + (uom ? ' ' + uom : '');
+        balDiv.classList.remove('d-none');
+        lmOnQtyInput();
+    };
+
+    window.lmComboInput  = lmComboInput;
+    window.lmComboOpen   = lmComboOpen;
+    window.lmComboToggle = lmComboToggle;
+
+    window.lmComboKey = function (event) {
+        const dd = document.getElementById('lmItemDropdown');
+        if (!dd || dd.style.display === 'none') {
+            if (event.key === 'ArrowDown' || event.key === 'Enter') {
+                event.preventDefault();
+                lmComboOpen();
+            }
+            return;
+        }
+        const opts = Array.from(dd.querySelectorAll('.lm-item-opt'));
+        let idx = opts.findIndex(o => o.classList.contains('lm-active'));
+        if (event.key === 'ArrowDown') {
+            event.preventDefault();
+            idx = Math.min(idx + 1, opts.length - 1);
+            opts.forEach(o => { o.classList.remove('lm-active'); o.style.background = ''; });
+            if (opts[idx]) { opts[idx].classList.add('lm-active'); opts[idx].style.background = '#e8eeff'; opts[idx].scrollIntoView({ block: 'nearest' }); }
+        } else if (event.key === 'ArrowUp') {
+            event.preventDefault();
+            idx = Math.max(idx - 1, 0);
+            opts.forEach(o => { o.classList.remove('lm-active'); o.style.background = ''; });
+            if (opts[idx]) { opts[idx].classList.add('lm-active'); opts[idx].style.background = '#e8eeff'; opts[idx].scrollIntoView({ block: 'nearest' }); }
+        } else if (event.key === 'Enter') {
+            event.preventDefault();
+            const active = dd.querySelector('.lm-active') || opts[0];
+            if (active) active.dispatchEvent(new MouseEvent('mousedown'));
+        } else if (event.key === 'Escape') {
+            lmComboClose();
+        }
+    };
+
+    function escLm(s) {
+        return String(s).replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;');
+    }
+
+    // ── Quantity / label logic ────────────────────────────────────────────────
+
+    function lmOnQtyInput() {
+        const method = document.querySelector('input[name="lmEntryMethod"]:checked')?.value;
+        if (method !== 'remaining') {
+            document.getElementById('lmComputedUsed').classList.add('d-none');
+            return;
+        }
+        if (!_selectedItemId) {
+            document.getElementById('lmComputedUsed').classList.add('d-none');
+            return;
+        }
+        const item = _items.find(it => it.id === _selectedItemId);
+        const onHand = item ? (parseFloat(item.quantityOnHand) || 0) : 0;
+        const remaining = parseFloat(document.getElementById('lmQuantity').value) || 0;
+        const used = onHand - remaining;
+        const computedDiv = document.getElementById('lmComputedUsed');
+        computedDiv.textContent = 'Usage = ' + onHand.toFixed(2) + ' − ' + remaining.toFixed(2) + ' = ' + used.toFixed(2) + (item?.unitOfMeasure ? ' ' + item.unitOfMeasure : '');
+        computedDiv.classList.remove('d-none');
+    }
+
+    window.lmUpdateQuantityLabel = function () {
+        const method = document.querySelector('input[name="lmEntryMethod"]:checked')?.value;
+        document.getElementById('lmQtyLabel').innerHTML =
+            (method === 'remaining' ? 'Quantity Remaining' : 'Quantity Used') +
+            ' <span class="text-danger">*</span>';
+        lmOnQtyInput();
+    };
+
+    // ── Modal open / save ─────────────────────────────────────────────────────
+
+    window.openLogMaterialModal = function () {
+        _selectedItemId = 0;
+        document.getElementById('lmItemSearch').value = '';
+        document.getElementById('lmItemBalance').classList.add('d-none');
+        document.getElementById('lmQuantity').value = '';
+        document.getElementById('lmComputedUsed').classList.add('d-none');
+        document.getElementById('lmTransactionType').value = 'JobUsage';
+        document.getElementById('lmNotes').value = '';
+        document.getElementById('lmAlert').classList.add('d-none');
+        document.getElementById('lmSaveBtn').disabled = false;
+        document.getElementById('lmMethodUsed').checked = true;
+        window.lmUpdateQuantityLabel();
+        lmComboClose();
+        if (_modal) _modal.show();
+    };
+
+    window.lmSave = async function () {
+        const cfg = window.__logMaterial;
+        const alertEl = document.getElementById('lmAlert');
+
+        function showError(msg) {
+            alertEl.className = 'alert alert-danger alert-permanent';
+            alertEl.textContent = msg;
+            alertEl.classList.remove('d-none');
+        }
+
+        if (!_selectedItemId) { showError('Please select an inventory item.'); return; }
+
+        const qtyInput = parseFloat(document.getElementById('lmQuantity').value) || 0;
+        if (qtyInput <= 0) { showError('Please enter a quantity greater than zero.'); return; }
+
+        const method = document.querySelector('input[name="lmEntryMethod"]:checked')?.value;
+        let quantityUsed = qtyInput;
+        if (method === 'remaining') {
+            const item = _items.find(it => it.id === _selectedItemId);
+            const onHand = item ? (parseFloat(item.quantityOnHand) || 0) : 0;
+            quantityUsed = onHand - qtyInput;
+            if (quantityUsed <= 0) {
+                showError('Remaining quantity cannot be equal to or greater than the current stock (' + onHand.toFixed(2) + ').');
+                return;
+            }
+        }
+
+        const btn = document.getElementById('lmSaveBtn');
+        btn.disabled = true;
+        alertEl.classList.add('d-none');
+
+        try {
+            const resp = await fetch(cfg.logUrl, {
+                method: 'POST',
+                headers: {
+                    'Content-Type': 'application/json',
+                    'RequestVerificationToken': cfg.token
+                },
+                body: JSON.stringify({
+                    jobId: cfg.jobId,
+                    inventoryItemId: _selectedItemId,
+                    quantityUsed: quantityUsed,
+                    transactionType: document.getElementById('lmTransactionType').value,
+                    notes: document.getElementById('lmNotes').value.trim() || null
+                })
+            });
+            const data = await resp.json();
+            if (data.success) {
+                if (_modal) _modal.hide();
+                window.location.reload();
+            } else {
+                showError(data.message || 'An error occurred.');
+                btn.disabled = false;
+            }
+        } catch {
+            showError('Network error. Please try again.');
+            btn.disabled = false;
+        }
+    };
+
+    // ── Init ──────────────────────────────────────────────────────────────────
+
+    function init() {
+        const cfg = window.__logMaterial;
+        if (!cfg) return;
+
+        _items = cfg.inventoryItems || [];
+        _jobPowderIds = new Set(cfg.jobPowderIds || []);
+        _modal = new bootstrap.Modal(document.getElementById('logMaterialModal'));
+
+        document.getElementById('lmQuantity').addEventListener('input', lmOnQtyInput);
+
+        // Close dropdown when clicking outside
+        document.addEventListener('click', function (e) {
+            if (!e.target.closest('#lmItemSearch') &&
+                !e.target.closest('#lmItemDropdown') &&
+                !e.target.closest('#lmItemDropdownToggle')) {
+                lmComboClose();
+            }
+        });
+    }
+
+    document.addEventListener('DOMContentLoaded', init);
+})();