using LehrerApp.Core.Models;
using Xunit;

namespace LehrerApp.Api.Tests;

public sealed class SchoolWeatherStoreTests
{
    [Fact]
    public void SaveLocation_TrenntNutzerUndErsetztVorhandenenStandort()
    {
        using var temp = new TempStore();
        temp.Store.SaveLocation("eins", Location("Köln", 50.9, 6.9));
        temp.Store.SaveLocation("zwei", Location("Berlin", 52.5, 13.4));
        temp.Store.SaveLocation("eins", Location("Bonn", 50.7, 7.1));

        Assert.Equal("Bonn", temp.Store.GetLocation("eins")!.City);
        Assert.Equal("Berlin", temp.Store.GetLocation("zwei")!.City);
    }

    [Fact]
    public void SaveLocation_AenderungEntferntWettercacheDesAltenOrts()
    {
        using var temp = new TempStore();
        temp.Store.SaveLocation("eins", Location("Köln", 50.9, 6.9));
        temp.Store.SaveWeather("eins", new WeatherSnapshot { StationId = "alt", RetrievedAt = DateTime.UtcNow });

        temp.Store.SaveLocation("eins", Location("Bonn", 50.7, 7.1));

        Assert.Null(temp.Store.GetWeather("eins"));
    }

    private static SchoolLocationProfile Location(string city, double lat, double lon) => new()
    {
        SchoolName = "Testschule", Street = "Schulweg 1", PostalCode = "12345", City = city,
        Latitude = lat, Longitude = lon, ResolvedAddress = city, UpdatedAt = DateTime.UtcNow,
    };

    private sealed class TempStore : IDisposable
    {
        private readonly string _path = Path.Combine(Path.GetTempPath(), $"lehrerapp-weather-tests-{Guid.NewGuid():N}");
        public SchoolWeatherStore Store { get; }
        public TempStore() { Directory.CreateDirectory(_path); Store = new(_path); }
        public void Dispose()
        {
            Store.Dispose();
            if (Directory.Exists(_path)) Directory.Delete(_path, recursive: true);
        }
    }
}