// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Identity.Test;
using Microsoft.AspNetCore.InternalTesting;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Diagnostics;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
 
namespace Microsoft.AspNetCore.Identity.EntityFrameworkCore.Test;
 
public class UserOnlyTest : IClassFixture<ScratchDatabaseFixture>
{
    private readonly ApplicationBuilder _builder;
 
    public class TestUserDbContext : IdentityUserContext<IdentityUser>
    {
        public TestUserDbContext(DbContextOptions options) : base(options) { }
    }
 
    public UserOnlyTest(ScratchDatabaseFixture fixture)
    {
        var services = new ServiceCollection();
 
        services
            .AddSingleton<IConfiguration>(new ConfigurationBuilder().Build())
            .AddDbContext<TestUserDbContext>(
                o => o.UseSqlite(fixture.Connection)
                    .ConfigureWarnings(b => b.Log(CoreEventId.ManyServiceProvidersCreatedWarning)))
            .AddIdentityCore<IdentityUser>(o => { })
            .AddEntityFrameworkStores<TestUserDbContext>();
 
        services.AddLogging();
 
        var provider = services.BuildServiceProvider();
        _builder = new ApplicationBuilder(provider);
 
        using (var scoped = provider.GetRequiredService<IServiceScopeFactory>().CreateScope())
        using (var db = scoped.ServiceProvider.GetRequiredService<TestUserDbContext>())
        {
            db.Database.EnsureCreated();
        }
    }
 
    [ConditionalFact]
    public async Task EnsureStartupUsageWorks()
    {
        var userStore = _builder.ApplicationServices.GetRequiredService<IUserStore<IdentityUser>>();
        var userManager = _builder.ApplicationServices.GetRequiredService<UserManager<IdentityUser>>();
 
        Assert.NotNull(userStore);
        Assert.NotNull(userManager);
 
        const string userName = "admin";
        const string password = "[PLACEHOLDER]-1a";
        var user = new IdentityUser { UserName = userName };
        IdentityResultAssert.IsSuccess(await userManager.CreateAsync(user, password));
        IdentityResultAssert.IsSuccess(await userManager.DeleteAsync(user));
    }
 
    [ConditionalFact]
    public async Task FindByEmailThrowsWithTwoUsersWithSameEmail()
    {
        var userStore = _builder.ApplicationServices.GetRequiredService<IUserStore<IdentityUser>>();
        var manager = _builder.ApplicationServices.GetRequiredService<UserManager<IdentityUser>>();
 
        Assert.NotNull(userStore);
        Assert.NotNull(manager);
 
        var userA = new IdentityUser(Guid.NewGuid().ToString());
        userA.Email = "dupe@dupe.com";
        const string password = "[PLACEHOLDER]-1a";
        IdentityResultAssert.IsSuccess(await manager.CreateAsync(userA, password));
        var userB = new IdentityUser(Guid.NewGuid().ToString());
        userB.Email = "dupe@dupe.com";
        IdentityResultAssert.IsSuccess(await manager.CreateAsync(userB, password));
        await Assert.ThrowsAsync<InvalidOperationException>(async () => await manager.FindByEmailAsync("dupe@dupe.com"));
    }
}