using SpaceGame.Simulation.Api.Data;

namespace SpaceGame.Simulation.Api.Simulation;

public sealed class SimulationWorld
{
  public required string Label { get; init; }
  public required int Seed { get; init; }
  public required BalanceDefinition Balance { get; init; }
  public required List<SystemRuntime> Systems { get; init; }
  public required List<ResourceNodeRuntime> Nodes { get; init; }
  public required List<NodeRuntime> SpatialNodes { get; init; }
  public required List<LocalBubbleRuntime> LocalBubbles { get; init; }
  public required List<StationRuntime> Stations { get; init; }
  public required List<ShipRuntime> Ships { get; init; }
  public required List<FactionRuntime> Factions { get; init; }
  public required List<CommanderRuntime> Commanders { get; init; }
  public required List<ClaimRuntime> Claims { get; init; }
  public required List<ConstructionSiteRuntime> ConstructionSites { get; init; }
  public required List<MarketOrderRuntime> MarketOrders { get; init; }
  public required List<PolicySetRuntime> Policies { get; init; }
  public required Dictionary<string, ShipDefinition> ShipDefinitions { get; init; }
  public required Dictionary<string, ItemDefinition> ItemDefinitions { get; init; }
  public required Dictionary<string, ModuleRecipeDefinition> ModuleRecipes { get; init; }
  public required Dictionary<string, RecipeDefinition> Recipes { get; init; }
  public int TickIntervalMs { get; init; } = 200;
  public DateTimeOffset GeneratedAtUtc { get; set; }
}

public sealed class SystemRuntime
{
  public required SolarSystemDefinition Definition { get; init; }
  public required Vector3 Position { get; init; }
}

public sealed class ResourceNodeRuntime
{
  public required string Id { get; init; }
  public required string SystemId { get; init; }
  public required Vector3 Position { get; init; }
  public required string SourceKind { get; init; }
  public required string ItemId { get; init; }
  public float OreRemaining { get; set; }
  public float MaxOre { get; init; }
  public string LastDeltaSignature { get; set; } = string.Empty;
}

public sealed class NodeRuntime
{
  public required string Id { get; init; }
  public required string SystemId { get; init; }
  public required string Kind { get; init; }
  public required Vector3 Position { get; set; }
  public required string BubbleId { get; init; }
  public string? ParentNodeId { get; set; }
  public string? OccupyingStructureId { get; set; }
  public string? OrbitReferenceId { get; set; }
  public string LastDeltaSignature { get; set; } = string.Empty;
}

public sealed class LocalBubbleRuntime
{
  public required string Id { get; init; }
  public required string NodeId { get; init; }
  public required string SystemId { get; init; }
  public float Radius { get; init; }
  public HashSet<string> OccupantShipIds { get; } = new(StringComparer.Ordinal);
  public HashSet<string> OccupantStationIds { get; } = new(StringComparer.Ordinal);
  public HashSet<string> OccupantClaimIds { get; } = new(StringComparer.Ordinal);
  public HashSet<string> OccupantConstructionSiteIds { get; } = new(StringComparer.Ordinal);
  public string LastDeltaSignature { get; set; } = string.Empty;
}

public sealed class StationRuntime
{
  public required string Id { get; init; }
  public required string SystemId { get; init; }
  public required ConstructibleDefinition Definition { get; init; }
  public required Vector3 Position { get; set; }
  public required string FactionId { get; init; }
  public string? NodeId { get; set; }
  public string? BubbleId { get; set; }
  public string? AnchorNodeId { get; set; }
  public string? CommanderId { get; set; }
  public string? PolicySetId { get; set; }
  public HashSet<string> InstalledModules { get; } = new(StringComparer.Ordinal);
  public Dictionary<string, float> Inventory { get; } = new(StringComparer.Ordinal);
  public Dictionary<int, string> DockingPadAssignments { get; } = new();
  public HashSet<string> MarketOrderIds { get; } = new(StringComparer.Ordinal);
  public float EnergyStored { get; set; }
  public float ProcessTimer { get; set; }
  public float Population { get; set; }
  public float PopulationCapacity { get; set; }
  public float WorkforceRequired { get; set; }
  public float WorkforceEffectiveRatio { get; set; } = 0.1f;
  public float PopulationGrowthProgress { get; set; }
  public HashSet<string> DockedShipIds { get; } = [];
  public ModuleConstructionRuntime? ActiveConstruction { get; set; }
  public string LastDeltaSignature { get; set; } = string.Empty;
}

public sealed class ModuleConstructionRuntime
{
  public required string ModuleId { get; init; }
  public float ProgressSeconds { get; set; }
  public float RequiredSeconds { get; init; }
  public string AssignedConstructorShipId { get; set; } = string.Empty;
}

public sealed class ShipRuntime
{
  public required string Id { get; init; }
  public required string SystemId { get; set; }
  public required ShipDefinition Definition { get; init; }
  public required string FactionId { get; init; }
  public required Vector3 Position { get; set; }
  public required Vector3 TargetPosition { get; set; }
  public required ShipSpatialStateRuntime SpatialState { get; set; }
  public Vector3 Velocity { get; set; } = Vector3.Zero;
  public string State { get; set; } = "idle";
  public ShipOrderRuntime? Order { get; set; }
  public required DefaultBehaviorRuntime DefaultBehavior { get; set; }
  public required ControllerTaskRuntime ControllerTask { get; set; }
  public float ActionTimer { get; set; }
  public Dictionary<string, float> Inventory { get; } = new(StringComparer.Ordinal);
  public float WorkerPopulation { get; set; }
  public float EnergyStored { get; set; }
  public string? DockedStationId { get; set; }
  public int? AssignedDockingPadIndex { get; set; }
  public string? CommanderId { get; set; }
  public string? PolicySetId { get; set; }
  public float Health { get; set; }
  public List<string> History { get; } = [];
  public string LastSignature { get; set; } = string.Empty;
  public string LastDeltaSignature { get; set; } = string.Empty;
}

public sealed class FactionRuntime
{
  public required string Id { get; init; }
  public required string Label { get; init; }
  public required string Color { get; init; }
  public float Credits { get; set; }
  public float PopulationTotal { get; set; }
  public float OreMined { get; set; }
  public float GoodsProduced { get; set; }
  public int ShipsBuilt { get; set; }
  public int ShipsLost { get; set; }
  public HashSet<string> CommanderIds { get; } = new(StringComparer.Ordinal);
  public string? DefaultPolicySetId { get; set; }
  public string LastDeltaSignature { get; set; } = string.Empty;
}

public sealed class CommanderRuntime
{
  public required string Id { get; init; }
  public required string Kind { get; set; }
  public required string FactionId { get; init; }
  public string? ParentCommanderId { get; set; }
  public string? ControlledEntityId { get; set; }
  public string? PolicySetId { get; set; }
  public string? Doctrine { get; set; }
  public List<string> Goals { get; } = [];
  public CommanderBehaviorRuntime? ActiveBehavior { get; set; }
  public CommanderOrderRuntime? ActiveOrder { get; set; }
  public CommanderTaskRuntime? ActiveTask { get; set; }
  public HashSet<string> SubordinateCommanderIds { get; } = new(StringComparer.Ordinal);
  public bool IsAlive { get; set; } = true;
}

public sealed class CommanderBehaviorRuntime
{
  public required string Kind { get; set; }
  public string? Phase { get; set; }
  public string? NodeId { get; set; }
  public string? StationId { get; set; }
  public string? ModuleId { get; set; }
  public string? AreaSystemId { get; set; }
  public int PatrolIndex { get; set; }
}

public sealed class CommanderOrderRuntime
{
  public required string Kind { get; init; }
  public string Status { get; set; } = "accepted";
  public string? TargetEntityId { get; set; }
  public string? DestinationNodeId { get; set; }
  public required string DestinationSystemId { get; init; }
  public required Vector3 DestinationPosition { get; init; }
}

public sealed class CommanderTaskRuntime
{
  public required string Kind { get; set; }
  public string Status { get; set; } = "pending";
  public string? TargetEntityId { get; set; }
  public string? TargetSystemId { get; set; }
  public string? TargetNodeId { get; set; }
  public Vector3? TargetPosition { get; set; }
  public float Threshold { get; set; }
}

public sealed class ClaimRuntime
{
  public required string Id { get; init; }
  public required string FactionId { get; init; }
  public required string SystemId { get; init; }
  public required string NodeId { get; init; }
  public required string BubbleId { get; init; }
  public string? CommanderId { get; set; }
  public DateTimeOffset PlacedAtUtc { get; init; }
  public DateTimeOffset ActivatesAtUtc { get; set; }
  public string State { get; set; } = ClaimStateKinds.Placed;
  public float Health { get; set; }
  public string LastDeltaSignature { get; set; } = string.Empty;
}

public sealed class ConstructionSiteRuntime
{
  public required string Id { get; init; }
  public required string FactionId { get; init; }
  public required string SystemId { get; init; }
  public required string NodeId { get; init; }
  public required string BubbleId { get; init; }
  public required string TargetKind { get; init; }
  public required string TargetDefinitionId { get; init; }
  public string? BlueprintId { get; set; }
  public string? ClaimId { get; set; }
  public string? StationId { get; set; }
  public Dictionary<string, float> Inventory { get; } = new(StringComparer.Ordinal);
  public Dictionary<string, float> RequiredItems { get; } = new(StringComparer.Ordinal);
  public Dictionary<string, float> DeliveredItems { get; } = new(StringComparer.Ordinal);
  public HashSet<string> AssignedConstructorShipIds { get; } = new(StringComparer.Ordinal);
  public HashSet<string> MarketOrderIds { get; } = new(StringComparer.Ordinal);
  public float Progress { get; set; }
  public string State { get; set; } = ConstructionSiteStateKinds.Planned;
  public string LastDeltaSignature { get; set; } = string.Empty;
}

public sealed class MarketOrderRuntime
{
  public required string Id { get; init; }
  public required string FactionId { get; init; }
  public string? StationId { get; init; }
  public string? ConstructionSiteId { get; init; }
  public required string Kind { get; init; }
  public required string ItemId { get; init; }
  public float Amount { get; init; }
  public float RemainingAmount { get; set; }
  public float Valuation { get; set; }
  public float? ReserveThreshold { get; set; }
  public string? PolicySetId { get; set; }
  public string State { get; set; } = MarketOrderStateKinds.Open;
  public string LastDeltaSignature { get; set; } = string.Empty;
}

public sealed class PolicySetRuntime
{
  public required string Id { get; init; }
  public required string OwnerKind { get; init; }
  public required string OwnerId { get; init; }
  public string TradeAccessPolicy { get; set; } = "owner-and-allies";
  public string DockingAccessPolicy { get; set; } = "owner-and-allies";
  public string ConstructionAccessPolicy { get; set; } = "owner-only";
  public string OperationalRangePolicy { get; set; } = "unrestricted";
  public string LastDeltaSignature { get; set; } = string.Empty;
}

public sealed class ShipOrderRuntime
{
  public required string Kind { get; init; }
  public string Status { get; set; } = "accepted";
  public required string DestinationSystemId { get; init; }
  public required Vector3 DestinationPosition { get; init; }
}

public sealed class DefaultBehaviorRuntime
{
  public required string Kind { get; set; }
  public string? AreaSystemId { get; set; }
  public string? StationId { get; set; }
  public string? RefineryId { get; set; }
  public string? NodeId { get; set; }
  public string? ModuleId { get; set; }
  public string? Phase { get; set; }
  public List<Vector3> PatrolPoints { get; set; } = [];
  public int PatrolIndex { get; set; }
}

public sealed class ControllerTaskRuntime
{
  public required string Kind { get; set; }
  public string Status { get; set; } = "pending";
  public string? CommanderId { get; set; }
  public string? TargetEntityId { get; set; }
  public string? TargetSystemId { get; set; }
  public string? TargetNodeId { get; set; }
  public Vector3? TargetPosition { get; set; }
  public float Threshold { get; set; }
}

public sealed class ShipSpatialStateRuntime
{
  public string SpaceLayer { get; set; } = SpaceLayerKinds.LocalSpace;
  public required string CurrentSystemId { get; set; }
  public string? CurrentNodeId { get; set; }
  public string? CurrentBubbleId { get; set; }
  public Vector3? LocalPosition { get; set; }
  public Vector3? SystemPosition { get; set; }
  public string MovementRegime { get; set; } = MovementRegimeKinds.LocalFlight;
  public string? DestinationNodeId { get; set; }
  public ShipTransitRuntime? Transit { get; set; }
}

public sealed class ShipTransitRuntime
{
  public required string Regime { get; init; }
  public string? OriginNodeId { get; init; }
  public string? DestinationNodeId { get; init; }
  public DateTimeOffset? StartedAtUtc { get; set; }
  public DateTimeOffset? ArrivalDueAtUtc { get; set; }
  public float Progress { get; set; }
}

public static class SpaceLayerKinds
{
  public const string UniverseSpace = "universe-space";
  public const string GalaxySpace = "galaxy-space";
  public const string SystemSpace = "system-space";
  public const string LocalSpace = "local-space";
}

public static class MovementRegimeKinds
{
  public const string LocalFlight = "local-flight";
  public const string Warp = "warp";
  public const string StargateTransit = "stargate-transit";
  public const string FtlTransit = "ftl-transit";
}

public static class CommanderKind
{
  public const string Faction = "faction";
  public const string Station = "station";
  public const string Ship = "ship";
  public const string Fleet = "fleet";
  public const string Sector = "sector";
  public const string TaskGroup = "task-group";
}

public static class ShipTaskKinds
{
  public const string Idle = "idle";
  public const string LocalMove = "local-move";
  public const string WarpToNode = "warp-to-node";
  public const string UseStargate = "use-stargate";
  public const string UseFtl = "use-ftl";
  public const string Dock = "dock";
  public const string Undock = "undock";
  public const string LoadCargo = "load-cargo";
  public const string UnloadCargo = "unload-cargo";
  public const string LoadWorkers = "load-workers";
  public const string UnloadWorkers = "unload-workers";
  public const string MineNode = "mine-node";
  public const string HarvestGas = "harvest-gas";
  public const string DeliverToStation = "deliver-to-station";
  public const string ClaimLagrangePoint = "claim-lagrange-point";
  public const string BuildConstructionSite = "build-construction-site";
  public const string EscortTarget = "escort-target";
  public const string AttackTarget = "attack-target";
  public const string DefendBubble = "defend-bubble";
  public const string Retreat = "retreat";
  public const string HoldPosition = "hold-position";
}

public static class ShipOrderKinds
{
  public const string DirectMove = "direct-move";
  public const string TravelToNode = "travel-to-node";
  public const string DockAtStation = "dock-at-station";
  public const string DeliverCargo = "deliver-cargo";
  public const string BuildAtSite = "build-at-site";
  public const string AttackTarget = "attack-target";
  public const string HoldPosition = "hold-position";
}

public static class ClaimStateKinds
{
  public const string Placed = "placed";
  public const string Activating = "activating";
  public const string Active = "active";
  public const string Destroyed = "destroyed";
}

public static class ConstructionSiteStateKinds
{
  public const string Planned = "planned";
  public const string Active = "active";
  public const string Paused = "paused";
  public const string Completed = "completed";
  public const string Destroyed = "destroyed";
}

public static class MarketOrderKinds
{
  public const string Buy = "buy";
  public const string Sell = "sell";
}

public static class MarketOrderStateKinds
{
  public const string Open = "open";
  public const string PartiallyFilled = "partially-filled";
  public const string Filled = "filled";
  public const string Cancelled = "cancelled";
}

public readonly record struct Vector3(float X, float Y, float Z)
{
  public static Vector3 Zero => new(0f, 0f, 0f);

  public float LengthSquared() => (X * X) + (Y * Y) + (Z * Z);

  public float DistanceTo(Vector3 other)
  {
    var dx = X - other.X;
    var dy = Y - other.Y;
    var dz = Z - other.Z;
    return MathF.Sqrt((dx * dx) + (dy * dy) + (dz * dz));
  }

  public Vector3 MoveToward(Vector3 target, float maxDistance)
  {
    var distance = DistanceTo(target);
    if (distance <= maxDistance || distance <= 0.0001f)
    {
      return target;
    }

    var t = maxDistance / distance;
    return new Vector3(
      X + ((target.X - X) * t),
      Y + ((target.Y - Y) * t),
      Z + ((target.Z - Z) * t));
  }

  public Vector3 Subtract(Vector3 other) => new(X - other.X, Y - other.Y, Z - other.Z);

  public Vector3 Divide(float value)
  {
    if (value == 0f)
    {
      return Zero;
    }

    return new(X / value, Y / value, Z / value);
  }
}