using System.Security.Claims;
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.Validation;
using Xunit;

namespace SeaHavenIndustries.Tests;

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

    [Fact]
    public async Task BoardCreate_WithAccountClaim_StampsAccountId()
    {
        await using var context = CreateContext();
        await WorkOrderAccountTestHelpers.EnsureAccountAsync(context, 7, "Scoped Co");

        var resolver = WorkOrderAccountTestHelpers.Resolver(context);
        var boardData = new WorkOrderBoardDataService(context);
        var mutationData = new WorkOrderBoardMutationDataService(context);
        var boardService = new WorkOrderBoardService(boardData, resolver);
        var fieldLocks = new WorkOrderFieldLockService(new WorkOrderFieldLockDataService(context));
        var audit = new WorkOrderAuditService(new WorkOrderAuditDataService(context), fieldLocks);
        var create = new WorkOrderBoardCreateService(
            boardData, mutationData, boardService, audit, new WorkOrderBoardCreateValidation(), resolver);

        var user = WorkOrderAccountTestHelpers.AccountUser("actor-1", 7, "Dispatcher");
        var row = await create.CreateAsync(
            new WorkOrderBoardCreateRequestDto
            {
                WorkOrderType = WorkOrderType.PM,
                SiteCode = "BK5"
            },
            user,
            "actor-1");

        var wo = await context.workOrders.AsNoTracking().SingleAsync(w => w.Id == row.Id);
        Assert.Equal(7, wo.AccountId);
    }

    [Fact]
    public async Task BoardCreate_MissingScope_ThrowsForbidden()
    {
        await using var context = CreateContext();
        var resolver = WorkOrderAccountTestHelpers.Resolver(context);
        var boardData = new WorkOrderBoardDataService(context);
        var mutationData = new WorkOrderBoardMutationDataService(context);
        var boardService = new WorkOrderBoardService(boardData, resolver);
        var fieldLocks = new WorkOrderFieldLockService(new WorkOrderFieldLockDataService(context));
        var audit = new WorkOrderAuditService(new WorkOrderAuditDataService(context), fieldLocks);
        var create = new WorkOrderBoardCreateService(
            boardData, mutationData, boardService, audit, new WorkOrderBoardCreateValidation(), resolver);

        var ex = await Assert.ThrowsAsync<WorkOrderBoardValidationException>(() =>
            create.CreateAsync(
                new WorkOrderBoardCreateRequestDto
                {
                    WorkOrderType = WorkOrderType.PM,
                    SiteCode = "BK5"
                },
                WorkOrderAccountTestHelpers.MissingScope(),
                "actor-1"));

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

    [Fact]
    public async Task BoardCreate_OrgWide_WithUniqueCustomer_StampsAccountId()
    {
        await using var context = CreateContext();
        await WorkOrderAccountTestHelpers.EnsureAccountAsync(context, 3, "Unique Customer");

        var resolver = WorkOrderAccountTestHelpers.Resolver(context);
        var boardData = new WorkOrderBoardDataService(context);
        var mutationData = new WorkOrderBoardMutationDataService(context);
        var boardService = new WorkOrderBoardService(boardData, resolver);
        var fieldLocks = new WorkOrderFieldLockService(new WorkOrderFieldLockDataService(context));
        var audit = new WorkOrderAuditService(new WorkOrderAuditDataService(context), fieldLocks);
        var create = new WorkOrderBoardCreateService(
            boardData, mutationData, boardService, audit, new WorkOrderBoardCreateValidation(), resolver);

        var row = await create.CreateAsync(
            new WorkOrderBoardCreateRequestDto
            {
                WorkOrderType = WorkOrderType.PO,
                SiteCode = "DAL",
                Customer = "Unique Customer"
            },
            WorkOrderAccountTestHelpers.OrgWideAdmin(),
            "admin-1");

        var wo = await context.workOrders.AsNoTracking().SingleAsync(w => w.Id == row.Id);
        Assert.Equal(3, wo.AccountId);
        Assert.Equal("Unique Customer", wo.Customer);
    }

    [Fact]
    public async Task BoardCreate_OrgWide_UnresolvedCustomer_ThrowsAccountUnresolved()
    {
        await using var context = CreateContext();
        var resolver = WorkOrderAccountTestHelpers.Resolver(context);
        var boardData = new WorkOrderBoardDataService(context);
        var mutationData = new WorkOrderBoardMutationDataService(context);
        var boardService = new WorkOrderBoardService(boardData, resolver);
        var fieldLocks = new WorkOrderFieldLockService(new WorkOrderFieldLockDataService(context));
        var audit = new WorkOrderAuditService(new WorkOrderAuditDataService(context), fieldLocks);
        var create = new WorkOrderBoardCreateService(
            boardData, mutationData, boardService, audit, new WorkOrderBoardCreateValidation(), resolver);

        var ex = await Assert.ThrowsAsync<WorkOrderBoardValidationException>(() =>
            create.CreateAsync(
                new WorkOrderBoardCreateRequestDto
                {
                    WorkOrderType = WorkOrderType.PM,
                    SiteCode = "BK5"
                },
                WorkOrderAccountTestHelpers.OrgWideAdmin(),
                "admin-1"));

        Assert.Equal("AccountUnresolved", ex.Code);
        Assert.Empty(context.workOrders);
    }

    [Fact]
    public async Task Board_ScopedUser_HidesOtherAccountAndNullAccountRows()
    {
        await using var context = CreateContext();
        await WorkOrderAccountTestHelpers.EnsureAccountAsync(context, 1, "A");
        await WorkOrderAccountTestHelpers.EnsureAccountAsync(context, 2, "B");

        context.workOrders.AddRange(
            new WorkOrder
            {
                Id = 1,
                InternalWONumber = "00000000001",
                AccountId = 1,
                LifecycleStatus = LifecycleStatus.Scheduled,
                ScheduledDate = new DateTime(2026, 8, 10),
                istemplate = false
            },
            new WorkOrder
            {
                Id = 2,
                InternalWONumber = "00000000002",
                AccountId = 2,
                LifecycleStatus = LifecycleStatus.Scheduled,
                ScheduledDate = new DateTime(2026, 8, 11),
                istemplate = false
            },
            new WorkOrder
            {
                Id = 3,
                InternalWONumber = "00000000003",
                AccountId = null,
                LifecycleStatus = LifecycleStatus.Scheduled,
                ScheduledDate = new DateTime(2026, 8, 12),
                istemplate = false
            });
        await context.SaveChangesAsync();

        var resolver = WorkOrderAccountTestHelpers.Resolver(context);
        var boardService = new WorkOrderBoardService(new WorkOrderBoardDataService(context), resolver);

        var scoped = await boardService.GetBoardAsync(
            new WorkOrderBoardQueryDto
            {
                WeekStart = new DateOnly(2026, 8, 10),
                WeekEnd = new DateOnly(2026, 8, 14)
            },
            WorkOrderAccountTestHelpers.AccountUser("disp-1", 1, "Dispatcher"),
            "disp-1");

        Assert.Single(scoped.Scheduled);
        Assert.Equal(1, scoped.Scheduled[0].Id);

        var orgWide = await boardService.GetBoardAsync(
            new WorkOrderBoardQueryDto
            {
                WeekStart = new DateOnly(2026, 8, 10),
                WeekEnd = new DateOnly(2026, 8, 14)
            },
            WorkOrderAccountTestHelpers.OrgWideAdmin(),
            "admin-1");

        Assert.Equal(3, orgWide.Scheduled.Count);
    }

    [Fact]
    public async Task Detail_CrossAccount_ReturnsNull()
    {
        await using var context = CreateContext();
        await WorkOrderAccountTestHelpers.EnsureAccountAsync(context, 1, "A");
        await WorkOrderAccountTestHelpers.EnsureAccountAsync(context, 2, "B");

        context.workOrders.Add(new WorkOrder
        {
            Id = 10,
            InternalWONumber = "00000000010",
            AccountId = 2,
            LifecycleStatus = LifecycleStatus.Incomplete,
            istemplate = false
        });
        await context.SaveChangesAsync();

        var resolver = WorkOrderAccountTestHelpers.Resolver(context);
        var boardService = new WorkOrderBoardService(new WorkOrderBoardDataService(context), resolver);
        var detail = new WorkOrderDetailService(
            boardService,
            new WorkOrderDetailDataService(context),
            new CompletionDocTemplateDataService(context),
            new UserDataService(context),
            resolver);

        var result = await detail.GetDetailAsync(
            10,
            WorkOrderAccountTestHelpers.AccountUser("disp-1", 1, "Dispatcher"));

        Assert.Null(result);
    }

    [Fact]
    public async Task Ingest_UnresolvedCustomer_SkipsCreate()
    {
        await using var context = CreateContext();
        var fieldLocks = new WorkOrderFieldLockService(new WorkOrderFieldLockDataService(context));
        var audit = new WorkOrderAuditService(new WorkOrderAuditDataService(context), fieldLocks);
        var ingest = new WorkOrderIngestService(
            new WorkOrderIngestDataService(context),
            new SyncFieldMergePolicy(fieldLocks),
            fieldLocks,
            audit,
            WorkOrderAccountTestHelpers.Resolver(context));

        var result = await ingest.UpsertBatchAsync(new[]
        {
            new WorkOrderIngestPayloadDto
            {
                ExternalWorkOrderId = "EXT-1",
                Description = "No account",
                Customer = "Unknown Customer"
            }
        });

        Assert.Equal(1, result.Skipped);
        Assert.Equal(0, result.Created);
        Assert.Empty(context.workOrders);
    }

    [Fact]
    public async Task Ingest_UniqueCustomer_StampsAccountId()
    {
        await using var context = CreateContext();
        await WorkOrderAccountTestHelpers.EnsureAccountAsync(context, 9, "Ingest Customer");

        var fieldLocks = new WorkOrderFieldLockService(new WorkOrderFieldLockDataService(context));
        var audit = new WorkOrderAuditService(new WorkOrderAuditDataService(context), fieldLocks);
        var ingest = new WorkOrderIngestService(
            new WorkOrderIngestDataService(context),
            new SyncFieldMergePolicy(fieldLocks),
            fieldLocks,
            audit,
            WorkOrderAccountTestHelpers.Resolver(context));

        var result = await ingest.UpsertBatchAsync(new[]
        {
            new WorkOrderIngestPayloadDto
            {
                ExternalWorkOrderId = "EXT-9",
                Description = "Has account",
                Customer = "Ingest Customer"
            }
        });

        Assert.Equal(1, result.Created);
        var wo = Assert.Single(context.workOrders);
        Assert.Equal(9, wo.AccountId);
    }

    [Fact]
    public async Task ResolveAccountFilter_MissingScope_ThrowsForbidden()
    {
        await using var context = CreateContext();
        var resolver = WorkOrderAccountTestHelpers.Resolver(context);

        var ex = Assert.Throws<WorkOrderBoardValidationException>(() =>
            resolver.ResolveAccountFilter(WorkOrderAccountTestHelpers.MissingScope()));

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