using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Options;

namespace RAIC.Extensions.Configuration.EntityFrameworkCore.SqlServer.Tests;


/// <summary>
/// Happy path tests 
/// </summary>
[ClassDataSource<HostFixture>(Shared = SharedType.PerClass)]
public class SingleSettingTests
{
    private readonly IServiceScopeFactory _hostScopeFactory;

    public SingleSettingTests(HostFixture hostFixture)
    {
        _hostScopeFactory = hostFixture;
    }

    [Test]
    public async Task AddSettingTest()
    {
        // Pre-condition sanity check!
        using (var preconditionScope = _hostScopeFactory.CreateScope())
        {
            var initialOptionsState = preconditionScope.ServiceProvider.GetRequiredService<IOptionsSnapshot<FixtureOptions>>().Value;
            await Assert.That(initialOptionsState.SomeOption).IsEqualTo("Memory value");
        }

        // Act
        using (var actScope = _hostScopeFactory.CreateScope())
        {
            var context = actScope.ServiceProvider.GetRequiredService<FixtureDbContext>();
            context.Settings.Add(new() { Key = nameof(FixtureOptions.SomeOption), Value = "Db value" });
            await context.SaveChangesAsync();
        }

        await Task.Delay(TimeSpan.FromSeconds(0.333)); // wait a bit to give config time to settle

        // Assert
        using (var assertScope = _hostScopeFactory.CreateScope())
        {
            var finalOptionsState = assertScope.ServiceProvider.GetRequiredService<IOptionsSnapshot<FixtureOptions>>().Value;
            await Assert.That(finalOptionsState.SomeOption).IsEqualTo("Db value");
        }
    }

    [Test]
    [DependsOn(nameof(AddSettingTest))]
    public async Task UpdateSettingTest()
    {
        // Pre-condition sanity check!
        using (var preconditionScope = _hostScopeFactory.CreateScope())
        {
            var initialOptionsState = preconditionScope.ServiceProvider.GetRequiredService<IOptionsSnapshot<FixtureOptions>>().Value;
            await Assert.That(initialOptionsState.SomeOption).IsEqualTo("Db value");
        }

        // Act
        using (var actScope = _hostScopeFactory.CreateScope())
        {
            var context = actScope.ServiceProvider.GetRequiredService<FixtureDbContext>();
            context.Settings.Update(new() { Key = nameof(FixtureOptions.SomeOption), Value = "Db value updated" });
            await context.SaveChangesAsync();
        }

        await Task.Delay(TimeSpan.FromSeconds(0.333)); // wait a bit to give config time to settle

        // Assert
        using (var assertScope = _hostScopeFactory.CreateScope())
        {
            var finalOptionsState = assertScope.ServiceProvider.GetRequiredService<IOptionsSnapshot<FixtureOptions>>().Value;
            await Assert.That(finalOptionsState.SomeOption).IsEqualTo("Db value updated");
        }
    }

    [Test]
    [DependsOn(nameof(UpdateSettingTest))]
    public async Task RemoveSettingTest()
    {
        // Pre-condition sanity check!
        using (var preconditionScope = _hostScopeFactory.CreateScope())
        {
            var initialOptionsState = preconditionScope.ServiceProvider.GetRequiredService<IOptionsSnapshot<FixtureOptions>>().Value;
            await Assert.That(initialOptionsState.SomeOption).IsEqualTo("Db value updated");
        }

        // Act
        using (var actScope = _hostScopeFactory.CreateScope())
        {
            var context = actScope.ServiceProvider.GetRequiredService<FixtureDbContext>();
            await context.Settings.Where(s => s.Key == nameof(FixtureOptions.SomeOption)).ExecuteDeleteAsync();
            await context.SaveChangesAsync();
        }

        await Task.Delay(TimeSpan.FromSeconds(0.333)); // wait a bit to give config time to settle

        // Assert
        using (var assertScope = _hostScopeFactory.CreateScope())
        {
            var finalOptionsState = assertScope.ServiceProvider.GetRequiredService<IOptionsSnapshot<FixtureOptions>>().Value;
            await Assert.That(finalOptionsState.SomeOption).IsEqualTo("Memory value");
        }
    }
}