using Data.SeaHavenIndustries;
using Data.SeaHavenIndustries.Enums;
using Microsoft.EntityFrameworkCore;
using SeaHaven.DataServices.Implementation;
using SeaHaven.Services.DTOs;
using SeaHaven.Services.Exceptions;
using SeaHaven.Services.Helpers;
using SeaHaven.Services.Implementation;
using SeaHaven.Services.Interfaces;
using SeaHaven.Services.Validation;

namespace SeaHavenIndustries.Tests;

public class WorkOrderPocServiceTests
{
    [Fact]
    public async Task ManualOverridePersistsIsAuditedAndLocks()
    {
        await using var context = CreateContext();
        await SeedScopeAsync(context);
        var workOrder = NewWorkOrder(context);
        await SeedSiteContactAsync(context, firstName: "Alice", lastName: "Site", phone: "312-555-0100");
        await context.SaveChangesAsync();

        var service = CreatePocService(context);
        var row = await service.UpdatePocAsync(
            workOrder.Id,
            Poc("Manual POC", "312-555-0001", "Call first", workOrder),
            WorkOrderAccountTestHelpers.AccountUser(),
            "actor-1");

        var persisted = await context.workOrders.AsNoTracking().SingleAsync(w => w.Id == workOrder.Id);
        Assert.Equal("Manual POC", persisted.PocName);
        Assert.Equal("312-555-0001", persisted.PocPhone);
        Assert.Equal("Call first", persisted.PocNotes);
        Assert.Equal("Manual POC", row.PocName);
        Assert.Equal("312-555-0001", row.PocPhone);
        Assert.True(row.PocCustomized);

        var auditName = await context.WorkOrderAuditLogs.SingleAsync(a =>
            a.WorkOrderId == workOrder.Id && a.FieldName == "PocName");
        Assert.Equal("Alice Site", auditName.OldValue);
        Assert.Equal("Manual POC", auditName.NewValue);
        Assert.Equal("FieldChanged", auditName.Action);
        Assert.True(await context.WorkOrderFieldLocks.AnyAsync(l =>
            l.WorkOrderId == workOrder.Id && l.FieldName == "PocName"));
        Assert.True(await context.WorkOrderFieldLocks.AnyAsync(l =>
            l.WorkOrderId == workOrder.Id && l.FieldName == "PocPhone"));
    }

    [Fact]
    public async Task ManualOverrideSurvivesCompleteAndLaterSiteChanges()
    {
        await using var context = CreateContext();
        await SeedScopeAsync(context);
        var workOrder = NewWorkOrder(context);
        workOrder.LifecycleStatus = LifecycleStatus.Scheduled;
        workOrder.ScheduledDate = DateTime.UtcNow.Date.AddDays(1);
        await SeedSiteContactAsync(context, firstName: "Alice", lastName: "Site", phone: "312-555-0100");
        await context.SaveChangesAsync();

        var service = CreatePocService(context);
        await service.UpdatePocAsync(
            workOrder.Id,
            Poc("Manual POC", "312-555-0001", null, workOrder),
            WorkOrderAccountTestHelpers.AccountUser(),
            "actor-1");

        var updateService = CreateUpdateService(context);
        var completed = await updateService.PatchFieldAsync(
            workOrder.Id,
            Patch(WorkOrderBoardFieldNames.LifecycleStatus, "Complete", workOrder),
            "actor-1");
        Assert.Equal("Manual POC", completed.PocName);

        var siteContact = await context.Contacts.SingleAsync(c => c.FirstName == "Alice");
        siteContact.FirstName = "Changed";
        siteContact.PhoneNumber = "999-555-0100";
        await context.SaveChangesAsync();

        var row = await CreateBoardService(context).GetBoardRowAsync(
            workOrder.Id, WorkOrderAccountTestHelpers.AccountUser());
        Assert.Equal("Manual POC", row!.PocName);
        Assert.Equal("312-555-0001", row.PocPhone);
    }

    [Fact]
    public async Task SiteContactUpdateDoesNotOverwriteManualOverride()
    {
        await using var context = CreateContext();
        await SeedScopeAsync(context);
        var workOrder = NewWorkOrder(context);
        var siteContact = await SeedSiteContactAsync(context, firstName: "Alice", lastName: "Site", phone: "312-555-0100");
        await context.SaveChangesAsync();

        var service = CreatePocService(context);
        await service.UpdatePocAsync(
            workOrder.Id,
            Poc("Manual POC", "312-555-0001", null, workOrder),
            WorkOrderAccountTestHelpers.AccountUser(),
            "actor-1");

        siteContact.FirstName = "Rotated";
        siteContact.PhoneNumber = "999-555-0100";
        await context.SaveChangesAsync();

        var row = await CreateBoardService(context).GetBoardRowAsync(
            workOrder.Id, WorkOrderAccountTestHelpers.AccountUser());
        Assert.Equal("Manual POC", row!.PocName);
        Assert.Equal("312-555-0001", row.PocPhone);
        Assert.True(row.PocCustomized);
    }

    [Fact]
    public async Task UnlockedWorkOrderFollowsSiteContact()
    {
        await using var context = CreateContext();
        await SeedScopeAsync(context);
        var workOrder = NewWorkOrder(context);
        var primary = await SeedSiteContactAsync(context, firstName: "Alice", lastName: "Site", phone: "312-555-0100", order: 0);
        await SeedSiteContactAsync(context, firstName: "Bob", lastName: "Backup", phone: "312-555-0200", order: 1);
        await context.SaveChangesAsync();

        var boardService = CreateBoardService(context);
        var before = await boardService.GetBoardRowAsync(workOrder.Id, WorkOrderAccountTestHelpers.AccountUser());
        Assert.Equal("Alice Site", before!.PocName);
        Assert.Equal("312-555-0100", before.PocPhone);
        Assert.False(before.PocCustomized);

        primary.PhoneNumber = "312-555-0999";
        await context.SaveChangesAsync();

        var after = await boardService.GetBoardRowAsync(workOrder.Id, WorkOrderAccountTestHelpers.AccountUser());
        Assert.Equal("Alice Site", after!.PocName);
        Assert.Equal("312-555-0999", after.PocPhone);
        Assert.False(after.PocCustomized);
    }

    [Fact]
    public async Task EditEqualToSiteContactDoesNotLock()
    {
        await using var context = CreateContext();
        await SeedScopeAsync(context);
        var workOrder = NewWorkOrder(context);
        await SeedSiteContactAsync(context, firstName: "Alice", lastName: "Site", phone: "312-555-0100");
        await context.SaveChangesAsync();

        var service = CreatePocService(context);
        await service.UpdatePocAsync(
            workOrder.Id,
            Poc("Manual POC", "312-555-0001", null, workOrder),
            WorkOrderAccountTestHelpers.AccountUser(),
            "actor-1");

        var row = await service.UpdatePocAsync(
            workOrder.Id,
            Poc("Alice Site", "312-555-0100", null, workOrder),
            WorkOrderAccountTestHelpers.AccountUser(),
            "actor-1");

        var persisted = await context.workOrders.AsNoTracking().SingleAsync(w => w.Id == workOrder.Id);
        Assert.Null(persisted.PocName);
        Assert.Null(persisted.PocPhone);
        Assert.Equal("Alice Site", row.PocName);
        Assert.Equal("312-555-0100", row.PocPhone);
        Assert.False(row.PocCustomized);

        var auditName = await context.WorkOrderAuditLogs.Where(a =>
            a.WorkOrderId == workOrder.Id && a.FieldName == "PocName")
            .OrderByDescending(a => a.Id)
            .FirstAsync();
        Assert.Equal("Manual POC", auditName.OldValue);
        Assert.Equal("Alice Site", auditName.NewValue);
    }

    [Fact]
    public async Task ClearingBothFieldsFollowsSiteAgain()
    {
        await using var context = CreateContext();
        await SeedScopeAsync(context);
        var workOrder = NewWorkOrder(context);
        await SeedSiteContactAsync(context, firstName: "Alice", lastName: "Site", phone: "312-555-0100");
        await context.SaveChangesAsync();

        var service = CreatePocService(context);
        await service.UpdatePocAsync(
            workOrder.Id,
            Poc("Manual POC", "312-555-0001", "keep notes", workOrder),
            WorkOrderAccountTestHelpers.AccountUser(),
            "actor-1");
        var row = await service.UpdatePocAsync(
            workOrder.Id,
            Poc(null, null, null, workOrder),
            WorkOrderAccountTestHelpers.AccountUser(),
            "actor-1");

        var persisted = await context.workOrders.AsNoTracking().SingleAsync(w => w.Id == workOrder.Id);
        Assert.Null(persisted.PocName);
        Assert.Null(persisted.PocPhone);
        Assert.Equal("Alice Site", row.PocName);
        Assert.False(row.PocCustomized);
    }

    [Fact]
    public async Task CrossTenantUpdateIsRejected()
    {
        await using var context = CreateContext();
        await SeedScopeAsync(context);
        var workOrder = NewWorkOrder(context, accountId: 2);
        await context.SaveChangesAsync();

        var service = CreatePocService(context);
        var ex = await Assert.ThrowsAsync<WorkOrderBoardValidationException>(() =>
            service.UpdatePocAsync(
                workOrder.Id,
                Poc("Manual POC", "312-555-0001", null, workOrder),
                WorkOrderAccountTestHelpers.AccountUser(accountId: 1),
                "actor-1"));

        Assert.Equal("NotFound", ex.Code);
        var persisted = await context.workOrders.AsNoTracking().SingleAsync(w => w.Id == workOrder.Id);
        Assert.Null(persisted.PocName);
        Assert.Empty(await context.WorkOrderAuditLogs.ToListAsync());
    }

    [Fact]
    public async Task MissingAccountScopeIsForbidden()
    {
        await using var context = CreateContext();
        await SeedScopeAsync(context);
        var workOrder = NewWorkOrder(context);
        await context.SaveChangesAsync();

        var service = CreatePocService(context);
        var ex = await Assert.ThrowsAsync<WorkOrderBoardValidationException>(() =>
            service.UpdatePocAsync(
                workOrder.Id,
                Poc("Manual POC", "312-555-0001", null, workOrder),
                WorkOrderAccountTestHelpers.MissingScope(),
                "actor-1"));

        Assert.Equal("Forbidden", ex.Code);
    }

    [Fact]
    public async Task CompletedWorkOrderIsReadOnly()
    {
        await using var context = CreateContext();
        await SeedScopeAsync(context);
        var workOrder = NewWorkOrder(context);
        workOrder.LifecycleStatus = LifecycleStatus.Completed;
        workOrder.CompletedDate = DateTime.UtcNow;
        await context.SaveChangesAsync();

        var service = CreatePocService(context);
        var ex = await Assert.ThrowsAsync<WorkOrderBoardValidationException>(() =>
            service.UpdatePocAsync(
                workOrder.Id,
                Poc("Manual POC", "312-555-0001", null, workOrder),
                WorkOrderAccountTestHelpers.AccountUser(),
                "actor-1"));

        Assert.Equal("ReadOnly", ex.Code);
        var persisted = await context.workOrders.AsNoTracking().SingleAsync(w => w.Id == workOrder.Id);
        Assert.Null(persisted.PocName);
    }

    [Fact]
    public async Task CanceledWorkOrderIsReadOnly()
    {
        await using var context = CreateContext();
        await SeedScopeAsync(context);
        var workOrder = NewWorkOrder(context);
        workOrder.LifecycleStatus = LifecycleStatus.Canceled;
        await context.SaveChangesAsync();

        var service = CreatePocService(context);
        var ex = await Assert.ThrowsAsync<WorkOrderBoardValidationException>(() =>
            service.UpdatePocAsync(
                workOrder.Id,
                Poc("Manual POC", "312-555-0001", null, workOrder),
                WorkOrderAccountTestHelpers.AccountUser(),
                "actor-1"));

        Assert.Equal("CanceledReadOnly", ex.Code);
    }

    [Fact]
    public async Task StaleVersionThrowsConflict()
    {
        await using var context = CreateContext();
        await SeedScopeAsync(context);
        var workOrder = NewWorkOrder(context);
        await context.SaveChangesAsync();

        var service = CreatePocService(context);
        var stale = new WorkOrderPocUpdateRequestDto
        {
            PocName = "Manual POC",
            PocPhone = "312-555-0001",
            WorkOrderVersion = Convert.ToBase64String(new byte[] { 9, 9, 9, 9 })
        };

        await Assert.ThrowsAsync<WorkOrderBoardConcurrencyException>(() =>
            service.UpdatePocAsync(workOrder.Id, stale, WorkOrderAccountTestHelpers.AccountUser(), "actor-1"));

        var persisted = await context.workOrders.AsNoTracking().SingleAsync(w => w.Id == workOrder.Id);
        Assert.Null(persisted.PocName);
    }

    [Fact]
    public async Task CompletionFreezesSiteContactWhenNoOverrideOrLink()
    {
        await using var context = CreateContext();
        await SeedScopeAsync(context);
        var workOrder = NewWorkOrder(context);
        workOrder.LifecycleStatus = LifecycleStatus.Scheduled;
        workOrder.ScheduledDate = DateTime.UtcNow.Date.AddDays(1);
        await SeedSiteContactAsync(context, firstName: "Alice", lastName: "Site", phone: "312-555-0100");
        await context.SaveChangesAsync();

        var updateService = CreateUpdateService(context);
        var completed = await updateService.PatchFieldAsync(
            workOrder.Id,
            Patch(WorkOrderBoardFieldNames.LifecycleStatus, "Complete", workOrder),
            "actor-1");

        Assert.Equal(LifecycleStatus.Completed, completed.LifecycleStatus);
        Assert.Equal("Alice Site", completed.PocName);
        Assert.Equal("312-555-0100", completed.PocPhone);

        var contact = await context.Contacts.SingleAsync();
        contact.PhoneNumber = "999-555-0100";
        await context.SaveChangesAsync();

        var row = await CreateBoardService(context).GetBoardRowAsync(
            workOrder.Id, WorkOrderAccountTestHelpers.AccountUser());
        Assert.Equal("Alice Site", row!.PocName);
        Assert.Equal("312-555-0100", row.PocPhone);
    }

    [Fact]
    public async Task BoardCreateWithPocEqualToSiteContactFollowsSite()
    {
        await using var context = CreateContext();
        WorkOrderAccountTestHelpers.SeedBoardCreateScope(context);
        context.Contacts.Add(new Contacts
        {
            FirstName = "Alice",
            LastName = "Site",
            PhoneNumber = "312-555-0100",
            LocationId = 1,
            SiteContactOrder = 0
        });
        await context.SaveChangesAsync();

        var service = CreateCreateService(context);
        var row = await service.CreateAsync(new WorkOrderBoardCreateRequestDto
        {
            WorkOrderType = WorkOrderType.PM,
            SiteCode = "BK5",
            LocationId = 1,
            PocName = "Alice Site",
            PocPhone = "312-555-0100"
        }, WorkOrderAccountTestHelpers.AccountUser(), "actor-1");

        var persisted = await context.workOrders.AsNoTracking().SingleAsync(w => w.Id == row.Id);
        Assert.Null(persisted.PocName);
        Assert.Null(persisted.PocPhone);
        Assert.Equal("Alice Site", row.PocName);
        Assert.False(row.PocCustomized);
    }

    [Fact]
    public async Task BoardCreateWithPocAwayFromSiteContactIsStored()
    {
        await using var context = CreateContext();
        WorkOrderAccountTestHelpers.SeedBoardCreateScope(context);
        context.Contacts.Add(new Contacts
        {
            FirstName = "Alice",
            LastName = "Site",
            PhoneNumber = "312-555-0100",
            LocationId = 1,
            SiteContactOrder = 0
        });
        await context.SaveChangesAsync();

        var service = CreateCreateService(context);
        var row = await service.CreateAsync(new WorkOrderBoardCreateRequestDto
        {
            WorkOrderType = WorkOrderType.PM,
            SiteCode = "BK5",
            LocationId = 1,
            PocName = "Manual POC",
            PocPhone = "312-555-0001"
        }, WorkOrderAccountTestHelpers.AccountUser(), "actor-1");

        var persisted = await context.workOrders.AsNoTracking().SingleAsync(w => w.Id == row.Id);
        Assert.Equal("Manual POC", persisted.PocName);
        Assert.Equal("312-555-0001", persisted.PocPhone);
        Assert.True(row.PocCustomized);
    }

    [Fact]
    public async Task EditToSecondSiteContactStoresOverride()
    {
        await using var context = CreateContext();
        await SeedScopeAsync(context);
        var workOrder = NewWorkOrder(context);
        await SeedSiteContactAsync(context, firstName: "Alice", lastName: "Site", phone: "312-555-0100", order: 0);
        await SeedSiteContactAsync(context, firstName: "Bob", lastName: "Backup", phone: "312-555-0200", order: 1);
        await context.SaveChangesAsync();

        // The WO follows the Site primary (Alice). Editing to the second live Site
        // contact (Bob) is a change away from what the board shows and must be
        // stored and locked, not silently cleared back to Alice.
        var service = CreatePocService(context);
        var row = await service.UpdatePocAsync(
            workOrder.Id,
            Poc("Bob Backup", "312-555-0200", null, workOrder),
            WorkOrderAccountTestHelpers.AccountUser(),
            "actor-1");

        var persisted = await context.workOrders.AsNoTracking().SingleAsync(w => w.Id == workOrder.Id);
        Assert.Equal("Bob Backup", persisted.PocName);
        Assert.Equal("312-555-0200", persisted.PocPhone);
        Assert.Equal("Bob Backup", row.PocName);
        Assert.Equal("312-555-0200", row.PocPhone);
        Assert.True(row.PocCustomized);

        var auditName = await context.WorkOrderAuditLogs.SingleAsync(a =>
            a.WorkOrderId == workOrder.Id && a.FieldName == "PocName");
        Assert.Equal("Alice Site", auditName.OldValue);
        Assert.Equal("Bob Backup", auditName.NewValue);
        Assert.True(await context.WorkOrderFieldLocks.AnyAsync(l =>
            l.WorkOrderId == workOrder.Id && l.FieldName == "PocName"));
        Assert.True(await context.WorkOrderFieldLocks.AnyAsync(l =>
            l.WorkOrderId == workOrder.Id && l.FieldName == "PocPhone"));
    }

    [Fact]
    public async Task EditToSitePrimaryWhenLinkedContactDiffersStoresOverride()
    {
        await using var context = CreateContext();
        await SeedScopeAsync(context);
        var workOrder = NewWorkOrder(context);
        await SeedSiteContactAsync(context, firstName: "Alice", lastName: "Site", phone: "312-555-0100", order: 0);
        var linked = new Contacts
        {
            FirstName = "Carol",
            LastName = "Linked",
            PhoneNumber = "312-555-0300"
        };
        context.Contacts.Add(linked);
        await context.SaveChangesAsync();
        context.WorkOrderContacts.Add(new WorkOrderContacts
        {
            WorkorderId = workOrder.Id,
            ContactId = linked.Id
        });
        await context.SaveChangesAsync();

        // The WO follows its linked contact (Carol). Typing the Site's primary
        // (Alice) is a change away from what the board shows and must be stored,
        // not cleared back to Carol.
        var service = CreatePocService(context);
        var row = await service.UpdatePocAsync(
            workOrder.Id,
            Poc("Alice Site", "312-555-0100", null, workOrder),
            WorkOrderAccountTestHelpers.AccountUser(),
            "actor-1");

        var persisted = await context.workOrders.AsNoTracking().SingleAsync(w => w.Id == workOrder.Id);
        Assert.Equal("Alice Site", persisted.PocName);
        Assert.Equal("312-555-0100", persisted.PocPhone);
        Assert.Equal("Alice Site", row.PocName);
        Assert.Equal("312-555-0100", row.PocPhone);
        Assert.True(row.PocCustomized);

        var auditName = await context.WorkOrderAuditLogs.SingleAsync(a =>
            a.WorkOrderId == workOrder.Id && a.FieldName == "PocName");
        Assert.Equal("Carol Linked", auditName.OldValue);
        Assert.Equal("Alice Site", auditName.NewValue);
    }

    [Fact]
    public async Task BoardCreateWithPocEqualToSecondSiteContactIsStored()
    {
        await using var context = CreateContext();
        WorkOrderAccountTestHelpers.SeedBoardCreateScope(context);
        context.Contacts.Add(new Contacts
        {
            FirstName = "Alice",
            LastName = "Site",
            PhoneNumber = "312-555-0100",
            LocationId = 1,
            SiteContactOrder = 0
        });
        context.Contacts.Add(new Contacts
        {
            FirstName = "Bob",
            LastName = "Backup",
            PhoneNumber = "312-555-0200",
            LocationId = 1,
            SiteContactOrder = 1
        });
        await context.SaveChangesAsync();

        // Create-time POC equal to the second Site contact (Bob) is not the contact
        // the WO would follow (the primary, Alice), so it must be stored.
        var service = CreateCreateService(context);
        var row = await service.CreateAsync(new WorkOrderBoardCreateRequestDto
        {
            WorkOrderType = WorkOrderType.PM,
            SiteCode = "BK5",
            LocationId = 1,
            PocName = "Bob Backup",
            PocPhone = "312-555-0200"
        }, WorkOrderAccountTestHelpers.AccountUser(), "actor-1");

        var persisted = await context.workOrders.AsNoTracking().SingleAsync(w => w.Id == row.Id);
        Assert.Equal("Bob Backup", persisted.PocName);
        Assert.Equal("312-555-0200", persisted.PocPhone);
        Assert.True(row.PocCustomized);
    }

    private static ApplicationDbContext CreateContext()
    {
        var options = new DbContextOptionsBuilder<ApplicationDbContext>()
            .UseInMemoryDatabase(Guid.NewGuid().ToString())
            .Options;
        return new ApplicationDbContext(options);
    }

    private static async Task SeedScopeAsync(ApplicationDbContext context)
    {
        WorkOrderAccountTestHelpers.SeedBoardCreateScope(context);
        await context.SaveChangesAsync();
    }

    private static WorkOrder NewWorkOrder(ApplicationDbContext context, int accountId = 1)
    {
        var location = context.Locations.Local.Single(l => l.Id == 1);
        var workOrder = new WorkOrder
        {
            Id = 1,
            InternalWONumber = "00000012345",
            SiteCode = "BK5",
            LocationId = location.Id,
            Locations = location,
            AccountId = accountId,
            LifecycleStatus = LifecycleStatus.Incomplete,
            RowVersion = Version()
        };
        context.workOrders.Add(workOrder);
        return workOrder;
    }

    private static async Task<Contacts> SeedSiteContactAsync(
        ApplicationDbContext context,
        string firstName,
        string lastName,
        string phone,
        int order = 0)
    {
        var contact = new Contacts
        {
            FirstName = firstName,
            LastName = lastName,
            PhoneNumber = phone,
            LocationId = 1,
            SiteContactOrder = order
        };
        context.Contacts.Add(contact);
        await context.SaveChangesAsync();
        return contact;
    }

    private static WorkOrderPocService CreatePocService(ApplicationDbContext context)
        => new(
            new WorkOrderPocDataService(context),
            new WorkOrderBoardMutationDataService(context),
            CreateBoardService(context),
            new WorkOrderAuditService(
                new WorkOrderAuditDataService(context),
                new WorkOrderFieldLockService(new WorkOrderFieldLockDataService(context))),
            WorkOrderAccountTestHelpers.Resolver(context));

    private static WorkOrderBoardService CreateBoardService(ApplicationDbContext context)
        => new(
            new WorkOrderBoardDataService(context),
            WorkOrderAccountTestHelpers.Resolver(context));

    private static WorkOrderBoardUpdateService CreateUpdateService(ApplicationDbContext context)
    {
        var fieldLocks = new WorkOrderFieldLockService(new WorkOrderFieldLockDataService(context));
        return new WorkOrderBoardUpdateService(
            new WorkOrderBoardDataService(context),
            new WorkOrderBoardMutationDataService(context),
            new WorkOrderAuditService(new WorkOrderAuditDataService(context), fieldLocks));
    }

    private static WorkOrderBoardCreateService CreateCreateService(ApplicationDbContext context)
        => new(
            new WorkOrderBoardDataService(context),
            new WorkOrderBoardMutationDataService(context),
            CreateBoardService(context),
            new WorkOrderAuditService(
                new WorkOrderAuditDataService(context),
                new WorkOrderFieldLockService(new WorkOrderFieldLockDataService(context))),
            new WorkOrderBoardCreateValidation(),
            WorkOrderAccountTestHelpers.Resolver(context),
            new WorkOrderPocDataService(context));

    private static WorkOrderPocUpdateRequestDto Poc(
        string? name,
        string? phone,
        string? notes,
        WorkOrder workOrder)
        => new()
        {
            PocName = name,
            PocPhone = phone,
            PocNotes = notes,
            WorkOrderVersion = Convert.ToBase64String(workOrder.RowVersion ?? Version())
        };

    private static WorkOrderBoardPatchRequestDto Patch(
        string field,
        string value,
        WorkOrder workOrder)
        => new()
        {
            Field = field,
            Value = value,
            WorkOrderVersion = Convert.ToBase64String(workOrder.RowVersion ?? Version())
        };

    private static byte[] Version() => new byte[] { 1, 0, 0, 0, 0, 0, 0, 1 };
}