using XFEEDToolBox.Core.Navigation;
using XFEExtension.NetCore.XUnit.Attributes;

namespace XFEEDToolBox.Test;

[TestFixture]
public sealed class SystemDestinationPolicyTests
{
    private static readonly NavigationAssists Docking=new(false,true,false);
    private static SystemLocation Station=>new(7,(1UL<<55)|123,"Station","",12,SystemLocationCategory.Station,77,new(1000,2000,3000),5000,false,new('b',64));
    private static CurrentSystemSnapshot Snapshot(SystemLocation location)=>new(123,"Fixture",81,9,DateTimeOffset.UtcNow,[location]);
    private static SystemNavigationCapabilities Complete=>new(new('a',64),true,true,true,true,false,false,"Fixture verified independent docking")
        {OriginalDockingConfigured=true,UsesNativeSupercruiseAssist=false,ApplicationFlightControlVerified=true,ApplicationFlightControlSchema=1};
    private static string? Reason(SystemLocation location,SystemNavigationCapabilities? capabilities=null,NavigationAssists? assists=null)
        =>SystemDestinationPolicy.UnsupportedReason(Snapshot(location),location,capabilities??Complete,assists??Docking);

    [Test]public void StationAndCarrierRequireTheirCompleteIndependentDockingContract()
    {
        Check.That(Reason(Station) is null);
        Check.That(Reason(Station with{Category=SystemLocationCategory.Carrier,NativeKind=14}) is null);
        Check.That(Reason(Station,Complete with{OriginalDockingConfigured=false})?.Contains("独立停靠扩展")==true);
        Check.That(Reason(Station,Complete with{DockingRequests=false})?.Contains("停靠扩展")==true);
        Check.That(Reason(Station,Complete with{NativeAssists=false})?.Contains("验证")==true);
        Check.That(Reason(Station,assists:new(false,false,false))?.Contains("路径尚未验证")==true);
    }
    [Test]public void BasicFlightDoesNotPromiseArrivalAtStarsPlanetsAsteroidsSignalsOrPoints()
    {
        var full=Complete with{DockingPaths=true,PlanetaryApproach=true};
        var orbit=new SystemNavigationTarget(123,Station.WorldAddress,"Body",SystemTargetKind.Orbit);
        Check.That(full.Supports(orbit,new(false,false,false)),"The lower-level research/control contract remains unchanged.");
        foreach(var category in new[]{SystemLocationCategory.Star,SystemLocationCategory.Planet,SystemLocationCategory.LandablePlanet,SystemLocationCategory.Asteroid,
            SystemLocationCategory.Settlement,SystemLocationCategory.Signal,SystemLocationCategory.PointOfInterest,SystemLocationCategory.Other,SystemLocationCategory.None,SystemLocationCategory.All})
        {
            var location=Station with{Category=category,MarketId=null};var snapshot=Snapshot(location);
            Check.That(SystemDestinationPolicy.UnsupportedReason(snapshot,location,full,Docking)?.Contains("尚未验证")==true);
            Check.Equal(1,snapshot.Locations.Count);Check.That(snapshot.Locations[0]==location,"Unsupported destinations remain available for browsing and selection.");
        }
    }
    [Test]public void MissingCoordinatesIdentityOrMarketCannotAuthorizeArrival()
    {
        Check.That(Reason(Station with{Position=null})?.Contains("坐标")==true);
        Check.That(Reason(Station with{Position=new(double.NaN,0,0)})?.Contains("坐标")==true);
        Check.That(Reason(Station with{MarketId=null})?.Contains("编号")==true);
        Check.That(Reason(Station with{MarketId=0})?.Contains("编号")==true);
        foreach(var location in new[]{Station with{Identity=""},Station with{Identity=new('g',64)},Station with{Key=-1},Station with{WorldAddress=0},
            Station with{WorldAddress=(1UL<<55)|124},Station with{NativeKind=0},Station with{Name=""}})
            Check.That(Reason(location)?.Contains("完整身份")==true);
    }
    [Test]public void ChangedCatalogueIdentityAndMissingCurrentPoseRequireReselection()
    {
        var location=Station;
        Check.That(SystemDestinationPolicy.UnsupportedReason(Snapshot(location with{Identity=new('c',64)}),location,Complete,Docking)?.Contains("重新选择")==true);
        Check.That(SystemDestinationPolicy.UnsupportedReason(Snapshot(location with{Position=null}),location,Complete,Docking)?.Contains("坐标")==true);
        Check.That(Reason(location,Complete with{TelemetryReady=false,TelemetryIssue="等待驾驶舱"})=="等待驾驶舱");
        Check.That(Reason(location,Complete with{CruiseControl=false})?.Contains("驾驶控制")==true);
    }
    [Test]public void AVerifiedDockingPathMayReplaceHardwareButAnUnverifiedPathCannot()
    {
        var noHardware=new NavigationAssists(false,false,false);
        Check.That(Reason(Station,Complete with{DockingPaths=true},noHardware) is null);
        Check.That(Reason(Station,Complete with{DockingPaths=false},noHardware) is not null);
        Check.That(Reason(Station,Complete with{DockingPaths=true,DockingRequests=false},noHardware) is not null);
    }
}