using Unity.Entities;
using Unity.NetCode;

namespace ProjectM.Simulation
{
    /// <summary>Resource-type ids for harvested materials (a byte, not an enum, per the cross-assembly enum-in-Burst hazard).</summary>
    public static class ResourceId
    {
        /// <summary>Unused / empty sentinel (aligns with StorageMath's 0-itemId no-op).</summary>
        public const byte None = 0;

        /// <summary>Magic energy — powers abilities / charging.</summary>
        public const byte Aether = 1;

        /// <summary>Raw ore — structures / building.</summary>
        public const byte Ore = 2;

        /// <summary>Biomass — misc / crafting.</summary>
        public const byte Biomass = 3;
    }

    /// <summary>
    /// A harvestable resource node in the procedural expedition field — an ownerless INTERPOLATED ghost
    /// (region-tagged Expedition) that clients see and shoot. The server-only ResourceHarvestSystem sweeps
    /// projectiles against it; each hit deposits <see cref="HarvestPerHit"/> of <see cref="ResourceId"/> into
    /// the GLOBAL resource ledger and decrements <see cref="Remaining"/>; the node despawns at &lt;= 0.
    /// ResourceId/Remaining are [GhostField] so clients can tint by type and (later) show depletion;
    /// HarvestPerHit is baked, server-only.
    /// </summary>
    public struct ResourceNode : IComponentData
    {
        /// <summary>Which resource this node yields (see <see cref="ResourceId"/>).</summary>
        [GhostField] public byte ResourceId;

        /// <summary>Remaining resource units; the node despawns when this reaches 0.</summary>
        [GhostField] public int Remaining;

        /// <summary>Units yielded per projectile hit (baked; server-only).</summary>
        public float HarvestPerHit;
    }
}