using System.Numerics;

namespace Nexus.Core;

public class GameState
{
    public long TickNumber { get; set; }
    public float DeltaTime { get; set; }
    public long TimestampMs { get; set; }

    public PlayerState Player { get; set; } = new();
    public IReadOnlyList<EntitySnapshot> Entities { get; set; } = [];
    public IReadOnlyList<EntitySnapshot> HostileMonsters { get; set; } = [];
    public IReadOnlyList<EntitySnapshot> NearbyLoot { get; set; } = [];
    public WalkabilitySnapshot? Terrain { get; set; }

    public uint AreaHash { get; set; }
    public int AreaLevel { get; set; }
    public string? CurrentAreaName { get; set; }
    public bool IsLoading { get; set; }
    public bool IsEscapeOpen { get; set; }
    public DangerLevel Danger { get; set; }
    public Matrix4x4? CameraMatrix { get; set; }
    public IReadOnlyList<QuestProgress> ActiveQuests { get; set; } = [];
    /// <summary>Active quests as shown in the game UI (title + objectives).</summary>
    public IReadOnlyList<UiQuestInfo> UiQuests { get; set; } = [];
    /// <summary>In-progress quests from the quest linked list with target areas and paths.</summary>
    public IReadOnlyList<QuestInfo> Quests { get; set; } = [];

    public IReadOnlyList<ProjectileSnapshot> EnemyProjectiles { get; set; } = [];

    // Derived (computed once per tick by GameStateEnricher / ThreatSystem)
    public ThreatMap Threats { get; set; } = new();
    public ThreatAssessment ThreatAssessment { get; set; } = new();
    public IReadOnlyList<EntitySnapshot> NearestEnemies { get; set; } = [];
    public IReadOnlyList<GroundEffect> GroundEffects { get; set; } = [];
}