using Data.SeaHavenIndustries;
using Data.SeaHavenIndustries.Enums;
using Microsoft.Data.Sqlite;
using Microsoft.EntityFrameworkCore;
using SeaHaven.DataServices.Implementation;
using SeaHaven.Services.DTOs;
using SeaHaven.Services.Implementation;
using SeaHaven.Services.Validation;

namespace SeaHavenIndustries.Tests;

public class WorkOrderBoardCreateRelationalTests
{
    [Fact]
    public async Task Create_AuditAndFieldLocks_UseGeneratedWorkOrderId()
    {
        await using var connection = new SqliteConnection("DataSource=:memory:");
        await connection.OpenAsync();

        var options = new DbContextOptionsBuilder<ApplicationDbContext>()
            .UseSqlite(connection)
            .Options;

        await using var context = new SqliteBoardTestDbContext(options);
        await context.Database.EnsureCreatedAsync();

        const string actorId = "actor-1";
        context.Users.Add(new ApplicationUser
        {
            Id = actorId,
            UserName = "actor-1",
            NormalizedUserName = "ACTOR-1",
            Email = "actor@test.local",
            NormalizedEmail = "ACTOR@TEST.LOCAL"
        });
        await context.SaveChangesAsync();
        await WorkOrderAccountTestHelpers.EnsureAccountAsync(context);
        await WorkOrderAccountTestHelpers.EnsureLocationAsync(context);

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

        var result = await service.CreateAsync(new WorkOrderBoardCreateRequestDto
        {
            WorkOrderType = WorkOrderType.PM,
            SiteCode = "BK5",
            LocationId = 1,
            Description = "Relational create"
        }, WorkOrderAccountTestHelpers.AccountUser(actorId), actorId);

        Assert.True(result.Id > 0);

        var logs = await context.WorkOrderAuditLogs.AsNoTracking().ToListAsync();
        var locks = await context.WorkOrderFieldLocks.AsNoTracking().ToListAsync();

        Assert.NotEmpty(logs);
        Assert.NotEmpty(locks);
        Assert.Contains(logs, l => l.Action == "Create");
        Assert.All(logs, l => Assert.Equal(result.Id, l.WorkOrderId));
        Assert.All(locks, l => Assert.Equal(result.Id, l.WorkOrderId));
        Assert.DoesNotContain(logs, l => l.WorkOrderId == 0);
        Assert.DoesNotContain(locks, l => l.WorkOrderId == 0);
    }

    [Fact]
    public async Task Create_WhenContactPersistenceFails_RollsBackWorkOrder()
    {
        await using var connection = new SqliteConnection("Data Source=:memory:;Foreign Keys=True");
        await connection.OpenAsync();

        var options = new DbContextOptionsBuilder<ApplicationDbContext>()
            .UseSqlite(connection)
            .Options;

        await using var context = new SqliteBoardTestDbContext(options);
        await context.Database.EnsureCreatedAsync();

        const string actorId = "actor-1";
        context.Users.Add(new ApplicationUser
        {
            Id = actorId,
            UserName = "actor-1",
            NormalizedUserName = "ACTOR-1",
            Email = "actor@test.local",
            NormalizedEmail = "ACTOR@TEST.LOCAL"
        });
        await context.SaveChangesAsync();
        await WorkOrderAccountTestHelpers.EnsureAccountAsync(context);
        await WorkOrderAccountTestHelpers.EnsureLocationAsync(context);

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

        await Assert.ThrowsAsync<DbUpdateException>(() =>
            service.CreateAsync(new WorkOrderBoardCreateRequestDto
            {
                WorkOrderType = WorkOrderType.PM,
                SiteCode = "BK5",
                LocationId = 1,
                Description = "Should roll back",
                PocContactId = 999_999
            }, WorkOrderAccountTestHelpers.AccountUser(actorId), actorId));

        // Fresh context on the same connection so we observe committed state only.
        await using var verify = new SqliteBoardTestDbContext(options);
        Assert.Empty(await verify.workOrders.AsNoTracking().ToListAsync());
        Assert.Empty(await verify.WorkOrderAuditLogs.AsNoTracking().ToListAsync());
        Assert.Empty(await verify.WorkOrderFieldLocks.AsNoTracking().ToListAsync());
        Assert.Empty(await verify.WorkOrderContacts.AsNoTracking().ToListAsync());
        Assert.Empty(await verify.Dispatches.AsNoTracking().ToListAsync());
    }

    private sealed class SqliteBoardTestDbContext : ApplicationDbContext
    {
        public SqliteBoardTestDbContext(DbContextOptions<ApplicationDbContext> options)
            : base(options)
        {
        }

        protected override void OnModelCreating(ModelBuilder builder)
        {
            base.OnModelCreating(builder);

            // SQL Server filtered index syntax is invalid on SQLite.
            foreach (var index in builder.Model.GetEntityTypes().SelectMany(e => e.GetIndexes()))
            {
                if (index.GetFilter() != null)
                    index.SetFilter(null);
            }

            // SQLite has no rowversion type; treat as plain nullable blobs.
            foreach (var entityType in new[] { typeof(WorkOrder), typeof(Dispatch) })
            {
                var property = builder.Entity(entityType).Property("RowVersion").Metadata;
                property.ValueGenerated = Microsoft.EntityFrameworkCore.Metadata.ValueGenerated.Never;
                property.IsConcurrencyToken = false;
            }
        }
    }
}