using Microsoft.EntityFrameworkCore;
using System.Security.Claims;
using Microsoft.AspNetCore.Http;
using Moq;
using ROLAC.API.Data;
using ROLAC.API.Data.Interceptors;
using ROLAC.API.Entities;
using Xunit;

namespace ROLAC.API.Tests.Services;

public class DbSeederForm990Tests
{
    private static AppDbContext BuildDb()
    {
        var ctx  = new DefaultHttpContext { User = new(new ClaimsIdentity(new[] { new Claim(ClaimTypes.NameIdentifier, "seed") })) };
        var mock = new Mock<IHttpContextAccessor>();
        mock.Setup(x => x.HttpContext).Returns(ctx);
        return new AppDbContext(new DbContextOptionsBuilder<AppDbContext>()
            .UseInMemoryDatabase(Guid.NewGuid().ToString())
            .AddInterceptors(new AuditSaveChangesInterceptor(new ROLAC.API.Services.Logging.CurrentUserAccessor(mock.Object))).Options);
    }

    [Fact]
    public async Task SeedExpenseCategories_AddsNewGroups_RenamesDuplicates_AndIsIdempotent()
    {
        using var db = BuildDb();
        var fnb = new ExpenseCategoryGroup { Name_en = "Food & Beverage", Name_zh = "餐飲", SortOrder = 3 };
        db.ExpenseCategoryGroups.Add(fnb);
        await db.SaveChangesAsync();
        db.ExpenseSubCategories.Add(new ExpenseSubCategory { GroupId = fnb.Id, Name_en = "Consumables", Name_zh = "消耗品" });
        await db.SaveChangesAsync();

        await DbSeeder.SeedExpenseCategoriesAsync(db);
        await DbSeeder.SeedExpenseCategoriesAsync(db); // idempotent second run

        var groups = await db.ExpenseCategoryGroups.ToListAsync();
        Assert.Contains(groups, g => g.Name_en == "Professional Services");
        Assert.Contains(groups, g => g.Name_en == "Information Technology");
        Assert.Contains(groups, g => g.Name_en == "Finance & Banking");

        var fnbSubs = await db.ExpenseSubCategories.Where(s => s.GroupId == fnb.Id).ToListAsync();
        Assert.DoesNotContain(fnbSubs, s => s.Name_en == "Consumables");
        Assert.Contains(fnbSubs, s => s.Name_en == "Disposable Tableware");

        Assert.Single(groups, g => g.Name_en == "Professional Services");
    }
}