using Microsoft.EntityFrameworkCore;
using PowderCoating.Application.Interfaces;
using PowderCoating.Core.Entities;

namespace PowderCoating.Infrastructure.Services;

public partial class SeedDataService
{
    /// <summary>
    /// Canonical email addresses of all customers created by the seed operation.
    /// Used during removal to identify seeded customers without relying on a flag column —
    /// matching on email is stable even if the records were soft-deleted between seed and remove.
    /// </summary>
    private static readonly string[] SeededCustomerEmails =
    [
        // Commercial — NC Triangle area
        "matt@carolinafab.com", "ctanner@apexmotorsports.com", "jpruitt@triangleoffroad.com",
        "bsmith@smithwelding.com", "kmorales@raleigharchitectural.com", "tgreco@eastcoastpw.com",
        "dshaw@piedmontmetalworks.com", "lpatel@caryindustrial.com", "rblake@durhamtech.com",
        "mcoleman@wakecountyfleet.gov",
        // Individual residential
        "jdavis@email.com", "sjenkins@email.com", "mthompson@email.com", "rmiller@email.com",
        "jclark@email.com", "dwilson@email.com", "landerson@email.com", "tharris@email.com",
        "kwhite@email.com", "jtaylor@email.com", "mbrown@email.com", "clee@email.com",
        "agarcia@email.com", "kmartinez@email.com", "nrodriguez@email.com",
        "bhall@email.com", "pyoung@email.com"
    ];

    /// <summary>
    /// Serial numbers assigned to all equipment records created by the seed operation.
    /// Serial numbers are manufacturer-assigned strings that are stable identifiers even across
    /// soft-delete cycles, making them safe fingerprints for seeded equipment detection.
    /// </summary>
    private static readonly string[] SeededEquipmentSerials =
    [
        "RFS240023456", "RFS180012789", "NOR120045678", "CC800034512",
        "EMP483623890", "CLM101223456", "ATC7523467", "PAC50034521",
        "BE489612345", "GEM0623456"
    ];

    /// <summary>
    /// Display names of the catalog categories created by the seed operation.
    /// Category name is the only reliable fingerprint because seeded categories carry no
    /// special flag; the name list is kept in sync with <see cref="SeedCatalogAsync"/>.
    /// </summary>
    private static readonly string[] SeededCatalogCategoryNames =
    [
        "Automotive Wheels", "Engine Components", "Outdoor Furniture",
        "Railings & Handrails", "Gates & Fencing", "Fitness Equipment", "Office & Commercial"
    ];

    /// <summary>
    /// SKU suffixes appended to the company code when seeding inventory items
    /// (e.g. <c>DEMO-PWD-BLK-001</c>).  The full SKU is reconstructed at removal time
    /// as <c>{CompanyCode}{suffix}</c>, matching the pattern used in the inventory seeder.
    /// </summary>
    private static readonly string[] SeededInventorySkuSuffixes =
    [
        // 6 powders
        "-PWD-GBK-001", "-PWD-MBK-001", "-PWD-CHR-001", "-PWD-CRD-001",
        "-PWD-SWH-001", "-PWD-IPU-001",
        // 5 consumables
        "-MSK-001", "-PLG-001", "-HKS-001", "-ACT-001", "-BLM-001"
    ];

    /// <summary>
    /// Display names of the pricing tiers created by the seed operation.
    /// Tiers are matched by name at removal time; the list must stay in sync with the
    /// pricing tier seeder to avoid leaving orphaned tiers behind.
    /// </summary>
    private static readonly string[] SeededPricingTierNames =
    [
        "Standard", "Silver", "Gold", "Platinum"
    ];

    /// <summary>
    /// Physically removes previously seeded demo data for the specified company, respecting
    /// the caller-supplied <paramref name="options"/> flags so operators can selectively
    /// remove only the data categories they want to clean up.
    /// </summary>
    /// <remarks>
    /// <para>
    /// When <c>ForceRemoveAll = true</c> a topologically ordered pre-sweep deletes every
    /// child record for the company that has a NO_ACTION FK pointing at a parent we need
    /// to delete later. This avoids FK constraint errors regardless of how much user-created
    /// data has accumulated since the last seed.  The sweep order mirrors the FK dependency
    /// graph derived from <c>sys.foreign_keys</c>:
    /// OvenBatchItems → PowderUsageLogs → InAppNotifications → QuotePhotos → GiftCertificates
    /// → JobTemplates → CreditMemoApplications → Refunds → CreditMemos → ReworkRecords
    /// → Deposits → Payments → InventoryTransactions → Invoices → Appointments
    /// → VendorCreditApplications → Bills → VendorCredits → PurchaseOrders → Expenses
    /// → OvenBatches → (self-referential Jobs.OriginalJobId nulled via raw SQL)
    /// then the main entity blocks run in safe order.
    /// </para>
    /// <para>
    /// For the selective (non-force) path the Customers block also pre-deletes Invoices,
    /// Payments, Deposits, QuotePhotos, and InAppNotifications that reference the seeded
    /// customer/job/quote IDs, so those deletes succeed even when the broader pre-sweep
    /// has not run.
    /// </para>
    /// </remarks>
    public async Task<SeedDataResult> RemoveSeedDataAsync(int companyId, RemoveSeedDataOptions options)
    {
        var result = new SeedDataResult { Success = true };
        var details = new List<string>();
        int totalRemoved = 0;

        try
        {
            var company = await _context.Companies
                .IgnoreQueryFilters()
                .FirstOrDefaultAsync(c => c.Id == companyId && !c.IsDeleted);

            if (company == null)
            {
                result.Success = false;
                result.Message = "Company not found";
                return result;
            }

            // ── ForceRemoveAll pre-sweep ──────────────────────────────────────────
            // Deletes every record that has a NO_ACTION FK pointing at a table we delete
            // later. Order follows the FK dependency graph (leaves first, roots last).
            // Each tier is committed before the next so EF's change tracker stays clean.
            if (options.ForceRemoveAll)
            {
                // Local helper: delete all rows of T for this company, return count.
                // All entities inherit BaseEntity which exposes CompanyId.
                async Task<int> Sweep<T>() where T : BaseEntity
                {
                    var rows = await _context.Set<T>().IgnoreQueryFilters()
                        .Where(e => e.CompanyId == companyId).ToListAsync();
                    if (rows.Any()) _context.Set<T>().RemoveRange(rows);
                    return rows.Count;
                }

                // Tier 1 — pure leaf records (block nothing of their own)
                await Sweep<JobTimeEntry>();            // FK → Jobs (Cascade by convention — sweep before jobs)
                await Sweep<OvenBatchItem>();           // NO_ACTION → Jobs, JobItems, JobItemCoats
                await Sweep<PowderUsageLog>();          // NO_ACTION → Jobs, JobItems, JobItemCoats
                await Sweep<InAppNotification>();       // NO_ACTION → Customers, Invoices, Quotes
                await Sweep<QuotePhoto>();              // NO_ACTION → Quotes
                await Sweep<GiftCertificate>();         // NO_ACTION → Customers (GiftCertRedemptions CASCADE)
                await Sweep<JobTemplate>();             // NO_ACTION → Customers (JobTemplateItems CASCADE)
                await _context.SaveChangesAsync();

                // Tier 2 — credit/rework chain (each row blocks the next tier)
                await Sweep<CreditMemoApplication>();  // NO_ACTION → Bills, VendorCredits
                await Sweep<Refund>();                 // NO_ACTION → Invoices, Payments, CreditMemos
                await Sweep<CreditMemo>();             // NO_ACTION → Customers, Invoices, ReworkRecords
                await _context.SaveChangesAsync();
                await Sweep<ReworkRecord>();           // NO_ACTION → Jobs, JobItems (after CreditMemos gone)
                await _context.SaveChangesAsync();

                // Tier 3 — financial records that block Invoices / Jobs / Quotes
                await Sweep<Deposit>();                // NO_ACTION → Jobs, Quotes (CASCADE from Customer anyway)
                await Sweep<Payment>();                // NO_ACTION → Invoices
                await Sweep<InventoryTransaction>();   // NO_ACTION → Jobs, PurchaseOrders
                await _context.SaveChangesAsync();
                await Sweep<Invoice>();                // NO_ACTION → Jobs (InvoiceItems, GiftCertRedemptions CASCADE)
                await _context.SaveChangesAsync();

                // Tier 4 — appointments (NO_ACTION → Customers AND Jobs)
                await Sweep<Appointment>();
                await _context.SaveChangesAsync();

                // Tier 5 — vendor/purchasing chain (BillLineItems.JobId NO_ACTION blocks Jobs)
                await Sweep<VendorCreditApplication>(); // NO_ACTION → Bills
                await _context.SaveChangesAsync();
                await Sweep<Bill>();                    // CASCADE → BillLineItems, BillPayments
                await Sweep<VendorCredit>();            // CASCADE → VendorCreditLineItems
                await Sweep<PurchaseOrder>();           // CASCADE → PurchaseOrderItems
                await Sweep<Expense>();                 // NO_ACTION → Jobs
                await Sweep<OvenBatch>();               // NO_ACTION → Equipment, OvenCosts
                await _context.SaveChangesAsync();

                // Jobs have a self-referential NO_ACTION FK (OriginalJobId). NULL it before
                // deleting so EF doesn't fail on ordering within the same-table batch delete.
                await _context.Database.ExecuteSqlRawAsync(
                    "UPDATE Jobs SET OriginalJobId = NULL WHERE CompanyId = {0}", companyId);

                details.Add("✓ Pre-sweep complete: child records cleared in FK-safe order");
            }

            // ── Customers (+ jobs, quotes, invoices, and all related children) ────
            if (options.Customers)
            {
                var seededCustomerIds = options.ForceRemoveAll
                    ? await _context.Customers.IgnoreQueryFilters()
                        .Where(c => c.CompanyId == companyId)
                        .Select(c => c.Id).ToListAsync()
                    : await _context.Customers.IgnoreQueryFilters()
                        .Where(c => c.CompanyId == companyId && SeededCustomerEmails.Contains(c.Email))
                        .Select(c => c.Id).ToListAsync();

                if (seededCustomerIds.Any())
                {
                    var seededJobIds = await _context.Jobs.IgnoreQueryFilters()
                        .Where(j => j.CompanyId == companyId && seededCustomerIds.Contains(j.CustomerId))
                        .Select(j => j.Id).ToListAsync();

                    var seededQuoteIds = await _context.Quotes.IgnoreQueryFilters()
                        .Where(q => q.CompanyId == companyId && q.CustomerId.HasValue
                                    && seededCustomerIds.Contains(q.CustomerId.Value))
                        .Select(q => q.Id).ToListAsync();

                    // ── Pre-delete records with NO_ACTION FKs pointing at Jobs/Quotes/Customers ──
                    // For ForceRemoveAll these are already gone (pre-sweep above). For selective
                    // removal this is the only pass, so we scope to the seeded entity IDs.

                    // Appointments — NO_ACTION → Customers AND Jobs
                    if (seededCustomerIds.Any() || seededJobIds.Any())
                    {
                        var appts = await _context.Set<Appointment>().IgnoreQueryFilters()
                            .Where(a => a.CompanyId == companyId
                                        && (a.CustomerId.HasValue && seededCustomerIds.Contains(a.CustomerId.Value)
                                            || a.JobId.HasValue && seededJobIds.Contains(a.JobId.Value)))
                            .ToListAsync();
                        if (appts.Any()) _context.Set<Appointment>().RemoveRange(appts);
                    }

                    // InAppNotifications — NO_ACTION → Customers, Quotes (Invoices handled below)
                    if (seededCustomerIds.Any() || seededQuoteIds.Any())
                    {
                        var nots = await _context.Set<InAppNotification>().IgnoreQueryFilters()
                            .Where(n => n.CompanyId == companyId
                                     && (n.CustomerId.HasValue && seededCustomerIds.Contains(n.CustomerId.Value)
                                      || n.QuoteId.HasValue && seededQuoteIds.Contains(n.QuoteId.Value)))
                            .ToListAsync();
                        if (nots.Any()) _context.Set<InAppNotification>().RemoveRange(nots);
                    }

                    // QuotePhotos — NO_ACTION → Quotes
                    if (seededQuoteIds.Any())
                    {
                        var qp = await _context.Set<QuotePhoto>().IgnoreQueryFilters()
                            .Where(p => p.QuoteId.HasValue && seededQuoteIds.Contains(p.QuoteId.Value)).ToListAsync();
                        if (qp.Any()) _context.Set<QuotePhoto>().RemoveRange(qp);
                    }

                    // Deposits — NO_ACTION → Jobs, Quotes (CustomerId is CASCADE from Customer but
                    // we delete deposits explicitly so jobs/quotes can be deleted first)
                    if (seededCustomerIds.Any())
                    {
                        var deps = await _context.Set<Deposit>().IgnoreQueryFilters()
                            .Where(d => seededCustomerIds.Contains(d.CustomerId)).ToListAsync();
                        if (deps.Any()) _context.Set<Deposit>().RemoveRange(deps);
                    }

                    await _context.SaveChangesAsync();

                    // Invoices — NO_ACTION → Jobs AND Customers; must be gone before Jobs are deleted.
                    // Collect invoice IDs first so Payments (NO_ACTION → Invoices) can be cleared.
                    List<int> seededInvoiceIds = [];
                    if (seededCustomerIds.Any())
                    {
                        seededInvoiceIds = await _context.Set<Invoice>().IgnoreQueryFilters()
                            .Where(i => i.CompanyId == companyId
                                        && seededCustomerIds.Contains(i.CustomerId))
                            .Select(i => i.Id).ToListAsync();

                        if (seededInvoiceIds.Any())
                        {
                            // InAppNotifications referencing these invoices
                            var invNots = await _context.Set<InAppNotification>().IgnoreQueryFilters()
                                .Where(n => n.InvoiceId.HasValue && seededInvoiceIds.Contains(n.InvoiceId.Value))
                                .ToListAsync();
                            if (invNots.Any()) _context.Set<InAppNotification>().RemoveRange(invNots);

                            // Payments — NO_ACTION → Invoices
                            var pmts = await _context.Set<Payment>().IgnoreQueryFilters()
                                .Where(p => seededInvoiceIds.Contains(p.InvoiceId)).ToListAsync();
                            if (pmts.Any()) _context.Set<Payment>().RemoveRange(pmts);

                            await _context.SaveChangesAsync();

                            var invoices = await _context.Set<Invoice>().IgnoreQueryFilters()
                                .Where(i => seededInvoiceIds.Contains(i.Id)).ToListAsync();
                            if (invoices.Any())
                            {
                                _context.Set<Invoice>().RemoveRange(invoices); // InvoiceItems CASCADE
                                totalRemoved += invoices.Count;
                                details.Add($"✓ Removed {invoices.Count} invoice(s)");
                            }

                            await _context.SaveChangesAsync();
                        }
                    }

                    // ── Jobs and their cascade children ─────────────────────────────────
                    if (seededJobIds.Any())
                    {
                        var jobPhotos = await _context.JobPhotos.IgnoreQueryFilters()
                            .Where(p => seededJobIds.Contains(p.JobId)).ToListAsync();
                        if (jobPhotos.Any()) _context.JobPhotos.RemoveRange(jobPhotos);

                        var jobNotes = await _context.JobNotes.IgnoreQueryFilters()
                            .Where(n => seededJobIds.Contains(n.JobId)).ToListAsync();
                        if (jobNotes.Any()) _context.JobNotes.RemoveRange(jobNotes);

                        var jobItems = await _context.JobItems.IgnoreQueryFilters()
                            .Where(i => seededJobIds.Contains(i.JobId)).ToListAsync();
                        if (jobItems.Any()) _context.JobItems.RemoveRange(jobItems);

                        var jobStatusHistory = await _context.JobStatusHistory.IgnoreQueryFilters()
                            .Where(h => seededJobIds.Contains(h.JobId)).ToListAsync();
                        if (jobStatusHistory.Any()) _context.JobStatusHistory.RemoveRange(jobStatusHistory);

                        var jobPrepServices = await _context.JobPrepServices.IgnoreQueryFilters()
                            .Where(p => seededJobIds.Contains(p.JobId)).ToListAsync();
                        if (jobPrepServices.Any()) _context.JobPrepServices.RemoveRange(jobPrepServices);

                        var timeEntries = await _context.Set<JobTimeEntry>().IgnoreQueryFilters()
                            .Where(te => seededJobIds.Contains(te.JobId)).ToListAsync();
                        if (timeEntries.Any()) _context.Set<JobTimeEntry>().RemoveRange(timeEntries);

                        var jobs = await _context.Jobs.IgnoreQueryFilters()
                            .Where(j => seededJobIds.Contains(j.Id)).ToListAsync();
                        _context.Jobs.RemoveRange(jobs);
                        totalRemoved += jobs.Count;
                        details.Add($"✓ Removed {jobs.Count} job(s)");
                    }

                    // ── Quotes and their cascade children ───────────────────────────────
                    if (seededQuoteIds.Any())
                    {
                        // Collect AiItemPrediction IDs before removing QuoteItems (FK is NoAction —
                        // predictions must be orphaned after items are gone, then deleted separately).
                        var predictionIds = await _context.QuoteItems.IgnoreQueryFilters()
                            .Where(qi => seededQuoteIds.Contains(qi.QuoteId) && qi.AiPredictionId != null)
                            .Select(qi => qi.AiPredictionId!.Value)
                            .Distinct()
                            .ToListAsync();

                        var quoteItems = await _context.QuoteItems.IgnoreQueryFilters()
                            .Where(qi => seededQuoteIds.Contains(qi.QuoteId)).ToListAsync();
                        if (quoteItems.Any()) _context.QuoteItems.RemoveRange(quoteItems);

                        var quotePrepServices = await _context.QuotePrepServices.IgnoreQueryFilters()
                            .Where(p => seededQuoteIds.Contains(p.QuoteId)).ToListAsync();
                        if (quotePrepServices.Any()) _context.QuotePrepServices.RemoveRange(quotePrepServices);

                        var quotes = await _context.Quotes.IgnoreQueryFilters()
                            .Where(q => seededQuoteIds.Contains(q.Id)).ToListAsync();
                        _context.Quotes.RemoveRange(quotes);
                        totalRemoved += quotes.Count;
                        details.Add($"✓ Removed {quotes.Count} quote(s)");

                        if (predictionIds.Any())
                        {
                            var predictions = await _context.Set<AiItemPrediction>()
                                .IgnoreQueryFilters()
                                .Where(p => predictionIds.Contains(p.Id))
                                .ToListAsync();
                            if (predictions.Any())
                            {
                                _context.Set<AiItemPrediction>().RemoveRange(predictions);
                                totalRemoved += predictions.Count;
                                details.Add($"✓ Removed {predictions.Count} AI prediction(s)");
                            }
                        }
                    }

                    // Customer notes (CASCADE from Customer, but explicit for clarity)
                    var customerNotes = await _context.CustomerNotes.IgnoreQueryFilters()
                        .Where(n => seededCustomerIds.Contains(n.CustomerId)).ToListAsync();
                    if (customerNotes.Any()) _context.CustomerNotes.RemoveRange(customerNotes);

                    var customers = await _context.Customers.IgnoreQueryFilters()
                        .Where(c => seededCustomerIds.Contains(c.Id)).ToListAsync();
                    _context.Customers.RemoveRange(customers);
                    totalRemoved += customers.Count;
                    details.Add($"✓ Removed {customers.Count} customer(s)");

                    await _context.SaveChangesAsync();
                }
                else
                {
                    details.Add("• No seeded customers found");
                }
            }

            // ── Inventory Items ───────────────────────────────────────────────────
            if (options.InventoryItems)
            {
                var seededSkus = SeededInventorySkuSuffixes.Select(s => $"{company.CompanyCode}{s}").ToArray();
                var inventoryItems = await _context.InventoryItems
                    .IgnoreQueryFilters()
                    .Where(i => i.CompanyId == companyId && seededSkus.Contains(i.SKU))
                    .ToListAsync();

                if (inventoryItems.Any())
                {
                    var inventoryIds = inventoryItems.Select(i => i.Id).ToList();
                    var transactions = await _context.InventoryTransactions.IgnoreQueryFilters()
                        .Where(t => inventoryIds.Contains(t.InventoryItemId)).ToListAsync();
                    if (transactions.Any()) _context.InventoryTransactions.RemoveRange(transactions);

                    _context.InventoryItems.RemoveRange(inventoryItems);
                    totalRemoved += inventoryItems.Count;
                    details.Add($"✓ Removed {inventoryItems.Count} inventory item(s)");
                    await _context.SaveChangesAsync();
                }
                else
                {
                    details.Add("• No seeded inventory items found");
                }
            }

            // ── Equipment (+ maintenance records) ────────────────────────────────
            if (options.Equipment)
            {
                var seededEquipment = await _context.Equipment
                    .IgnoreQueryFilters()
                    .Where(e => e.CompanyId == companyId && SeededEquipmentSerials.Contains(e.SerialNumber))
                    .ToListAsync();

                if (seededEquipment.Any())
                {
                    var equipmentIds = seededEquipment.Select(e => e.Id).ToList();
                    var maintenance = await _context.MaintenanceRecords.IgnoreQueryFilters()
                        .Where(m => equipmentIds.Contains(m.EquipmentId)).ToListAsync();
                    if (maintenance.Any()) _context.MaintenanceRecords.RemoveRange(maintenance);

                    _context.Equipment.RemoveRange(seededEquipment);
                    totalRemoved += seededEquipment.Count;
                    details.Add($"✓ Removed {seededEquipment.Count} equipment record(s)");
                    await _context.SaveChangesAsync();
                }
                else
                {
                    details.Add("• No seeded equipment found");
                }
            }

            // ── Catalog Items & Categories ────────────────────────────────────────
            if (options.Catalog)
            {
                var seededCategories = await _context.CatalogCategories
                    .IgnoreQueryFilters()
                    .Where(c => c.CompanyId == companyId && SeededCatalogCategoryNames.Contains(c.Name))
                    .ToListAsync();

                if (seededCategories.Any())
                {
                    var categoryIds = seededCategories.Select(c => c.Id).ToList();
                    var catalogItems = await _context.CatalogItems.IgnoreQueryFilters()
                        .Where(i => i.CompanyId == companyId && categoryIds.Contains(i.CategoryId))
                        .ToListAsync();

                    if (catalogItems.Any())
                    {
                        _context.CatalogItems.RemoveRange(catalogItems);
                        totalRemoved += catalogItems.Count;
                        details.Add($"✓ Removed {catalogItems.Count} catalog item(s)");
                    }

                    _context.CatalogCategories.RemoveRange(seededCategories);
                    totalRemoved += seededCategories.Count;
                    details.Add($"✓ Removed {seededCategories.Count} catalog categor(y/ies)");
                    await _context.SaveChangesAsync();
                }
                else
                {
                    details.Add("• No seeded catalog data found");
                }
            }

            // ── Pricing Tiers ─────────────────────────────────────────────────────
            if (options.PricingTiers)
            {
                var tiers = await _context.PricingTiers
                    .IgnoreQueryFilters()
                    .Where(t => t.CompanyId == companyId && SeededPricingTierNames.Contains(t.TierName))
                    .ToListAsync();

                if (tiers.Any())
                {
                    _context.PricingTiers.RemoveRange(tiers);
                    totalRemoved += tiers.Count;
                    details.Add($"✓ Removed {tiers.Count} pricing tier(s)");
                    await _context.SaveChangesAsync();
                }
                else
                {
                    details.Add("• No seeded pricing tiers found");
                }
            }

            // ── Operating Costs ───────────────────────────────────────────────────
            if (options.OperatingCosts)
            {
                var costs = await _context.CompanyOperatingCosts
                    .IgnoreQueryFilters()
                    .Where(c => c.CompanyId == companyId)
                    .ToListAsync();

                if (costs.Any())
                {
                    _context.CompanyOperatingCosts.RemoveRange(costs);
                    totalRemoved += costs.Count;
                    details.Add("✓ Removed operating costs record");
                    await _context.SaveChangesAsync();
                }
                else
                {
                    details.Add("• No operating costs record found");
                }
            }

            // ── Purchase Orders ───────────────────────────────────────────────────
            // Handled in the pre-sweep for ForceRemoveAll; this block serves selective removal.
            if (options.Bills && !options.ForceRemoveAll)
            {
                var poIds = await _context.Set<PurchaseOrder>()
                    .IgnoreQueryFilters()
                    .Where(p => p.CompanyId == companyId)
                    .Select(p => p.Id)
                    .ToListAsync();

                if (poIds.Any())
                {
                    var poItems = await _context.Set<PurchaseOrderItem>()
                        .IgnoreQueryFilters()
                        .Where(i => poIds.Contains(i.PurchaseOrderId))
                        .ToListAsync();
                    if (poItems.Any()) _context.Set<PurchaseOrderItem>().RemoveRange(poItems);

                    var pos = await _context.Set<PurchaseOrder>()
                        .IgnoreQueryFilters()
                        .Where(p => poIds.Contains(p.Id))
                        .ToListAsync();
                    _context.Set<PurchaseOrder>().RemoveRange(pos);
                    totalRemoved += pos.Count;
                    details.Add($"✓ Removed {pos.Count} purchase order(s)");
                    await _context.SaveChangesAsync();
                }
            }

            // ── Vendor Bills ──────────────────────────────────────────────────────
            // Handled in the pre-sweep for ForceRemoveAll; this block serves selective removal.
            if (options.Bills && !options.ForceRemoveAll)
            {
                var billIds = await _context.Set<Bill>()
                    .IgnoreQueryFilters()
                    .Where(b => b.CompanyId == companyId)
                    .Select(b => b.Id)
                    .ToListAsync();

                if (billIds.Any())
                {
                    var payments = await _context.Set<BillPayment>()
                        .IgnoreQueryFilters()
                        .Where(p => billIds.Contains(p.BillId))
                        .ToListAsync();
                    if (payments.Any()) _context.Set<BillPayment>().RemoveRange(payments);

                    var lineItems = await _context.Set<BillLineItem>()
                        .IgnoreQueryFilters()
                        .Where(li => billIds.Contains(li.BillId))
                        .ToListAsync();
                    if (lineItems.Any()) _context.Set<BillLineItem>().RemoveRange(lineItems);

                    var bills = await _context.Set<Bill>()
                        .IgnoreQueryFilters()
                        .Where(b => billIds.Contains(b.Id))
                        .ToListAsync();
                    _context.Set<Bill>().RemoveRange(bills);
                    totalRemoved += bills.Count;
                    details.Add($"✓ Removed {bills.Count} vendor bill(s)");
                    await _context.SaveChangesAsync();
                }
                else
                {
                    details.Add("• No vendor bills found");
                }
            }

            // ── Expenses ──────────────────────────────────────────────────────────
            // Handled in the pre-sweep for ForceRemoveAll; this block serves selective removal.
            if (options.Expenses && !options.ForceRemoveAll)
            {
                var expenses = await _context.Set<Expense>()
                    .IgnoreQueryFilters()
                    .Where(e => e.CompanyId == companyId)
                    .ToListAsync();

                if (expenses.Any())
                {
                    _context.Set<Expense>().RemoveRange(expenses);
                    totalRemoved += expenses.Count;
                    details.Add($"✓ Removed {expenses.Count} expense(s)");
                    await _context.SaveChangesAsync();
                }
                else
                {
                    details.Add("• No expenses found");
                }
            }

            // ── Vendors ───────────────────────────────────────────────────────────
            if (options.Vendors || options.ForceRemoveAll)
            {
                var vendors = await _context.Set<Vendor>()
                    .IgnoreQueryFilters()
                    .Where(v => v.CompanyId == companyId)
                    .ToListAsync();

                if (vendors.Any())
                {
                    _context.Set<Vendor>().RemoveRange(vendors);
                    totalRemoved += vendors.Count;
                    details.Add($"✓ Removed {vendors.Count} vendor(s)");
                    await _context.SaveChangesAsync();
                }
                else
                {
                    details.Add("• No vendors found");
                }
            }

            // ── Named Ovens (OvenCost) ────────────────────────────────────────────
            if (options.NamedOvens || options.ForceRemoveAll)
            {
                var ovens = await _context.Set<OvenCost>()
                    .IgnoreQueryFilters()
                    .Where(o => o.CompanyId == companyId)
                    .ToListAsync();

                if (ovens.Any())
                {
                    _context.Set<OvenCost>().RemoveRange(ovens);
                    totalRemoved += ovens.Count;
                    details.Add($"✓ Removed {ovens.Count} named oven(s)");
                    await _context.SaveChangesAsync();
                }
                else
                {
                    details.Add("• No named ovens found");
                }
            }

            // ── Shop Workers ──────────────────────────────────────────────────────
            if (options.Workers)
            {
                var workerUsers = options.ForceRemoveAll
                    ? await _userManager.Users
                        .Where(u => u.CompanyId == companyId && u.CompanyRole == "Worker")
                        .ToListAsync()
                    : await _userManager.Users
                        .Where(u => SeededWorkerEmails.Contains(u.Email) && u.CompanyId == companyId)
                        .ToListAsync();

                if (workerUsers.Any())
                {
                    foreach (var wu in workerUsers)
                        await _userManager.DeleteAsync(wu);
                    totalRemoved += workerUsers.Count;
                    details.Add($"✓ Removed {workerUsers.Count} demo shop worker(s)");
                }
                else
                {
                    details.Add("• No demo shop workers found");
                }
            }

            result.ItemsSeeded = totalRemoved;
            result.Details = details;
            result.Message = totalRemoved > 0
                ? $"Removed {totalRemoved} seeded record(s) from {company.CompanyName}"
                : $"No matching seeded records found for {company.CompanyName}";
        }
        catch (Exception ex)
        {
            result.Success = false;
            result.Message = $"Error removing seed data: {ex.Message}";
        }

        return result;
    }
}