using FluentAssertions;
using IBKRTrader.Core.Settings;

namespace IBKRTrader.Tests.Settings;

[Trait("cat", "unit")]
public class SettingsSchemaTests
{
    [Fact]
    public void Build_ExtractsSectionsAndFieldsFromAppSettings()
    {
        var settings = new AppSettings();
        var sections = SettingsSchema.Build(settings);

        sections.Should().NotBeEmpty();
        sections.SelectMany(s => s.Fields).Should().NotBeEmpty();

        // Webserver-Abschnitt prüfen
        var ws = sections.FirstOrDefault(s => s.Fields.Any(f => f.Path == "Webserver.Port"));
        ws.Should().NotBeNull();
    }

    [Fact]
    public void ToDto_MasksPasswordsAndTokens()
    {
        var settings = new AppSettings();
        settings.Webserver.AuthToken = "super-secret-1234";
        settings.Database.Password = "db-pass-secret";

        var dtos = SettingsSchema.ToDto(settings);
        var allFields = dtos.SelectMany(s => s.Fields).ToList();

        // AuthToken prüfen
        var tokenField = allFields.FirstOrDefault(f => f.Path == "Webserver.AuthToken");
        tokenField.Should().NotBeNull();
        tokenField!.IsPassword.Should().BeTrue();
        tokenField.HasValue.Should().BeTrue();
        tokenField.Value.Should().BeNull("Passwörter und Tokens dürfen niemals im Klartext im DTO stehen!");

        // DB Password prüfen
        var passField = allFields.FirstOrDefault(f => f.Path == "Database.Password");
        passField.Should().NotBeNull();
        passField!.IsPassword.Should().BeTrue();
        passField.Value.Should().BeNull();
    }

    [Fact]
    public void TrySetValue_UpdatesValueByPath()
    {
        var settings = new AppSettings();
        settings.Webserver.Port = 5001;

        var success = SettingsSchema.TrySetValue(settings, "Webserver.Port", 6002);

        success.Should().BeTrue();
        settings.Webserver.Port.Should().Be(6002);
    }

    [Fact]
    public void TrySetValue_PreservesPasswordWhenEmptyPassed()
    {
        var settings = new AppSettings();
        settings.Webserver.AuthToken = "keep-this-token";

        var success = SettingsSchema.TrySetValue(settings, "Webserver.AuthToken", "");

        success.Should().BeTrue();
        settings.Webserver.AuthToken.Should().Be("keep-this-token");
    }

    [Fact]
    public void TrySetValue_ReturnsFalseForUnknownPath()
    {
        var settings = new AppSettings();

        var success = SettingsSchema.TrySetValue(settings, "NonExistent.Field", "val");

        success.Should().BeFalse();
    }

    [Fact]
    public void TrySetValue_ParsesStringRepresentationOfTypes()
    {
        var settings = new AppSettings();

        // int als string
        SettingsSchema.TrySetValue(settings, "Webserver.Port", "7001").Should().BeTrue();
        settings.Webserver.Port.Should().Be(7001);

        // bool als string
        SettingsSchema.TrySetValue(settings, "Webserver.Enabled", "true").Should().BeTrue();
        settings.Webserver.Enabled.Should().BeTrue();

        // bool als false
        SettingsSchema.TrySetValue(settings, "Webserver.Enabled", "false").Should().BeTrue();
        settings.Webserver.Enabled.Should().BeFalse();
    }
}