using ProjectM.Simulation;
using Unity.Entities;
using UnityEngine;

namespace ProjectM.Authoring
{
    /// <summary>
    /// Authoring for a player-cast ZONE ghost (Vortex / LightZone — the LANTERN Aoe/zone Sparks). Bakes an inert
    /// <see cref="ZoneEffect"/>; the runtime values (caster / radius / damage / lifetime) are stamped at spawn by
    /// <c>AbilityFireSystem</c> — only the Vortex FLAG is authored here (so <c>AbilityFireSystem</c> can pick
    /// ZoneEffect vs DecoyTag by prefab membership, and the pull behaviour is baked-in). The prefab's ghost setup
    /// (GhostAuthoringComponent: interpolated, ownerless) is inherited by DUPLICATING an existing ownerless
    /// interpolated ghost, so position replicates via the stock LocalTransform variant. 07-21 G6: ZoneEffect's
    /// CasterNetworkId / Radius / NextTick are hand-written <c>[GhostField]</c>s (the client fill telegraph). <c>GetEntity(Dynamic)</c> gives a runtime-mutable LocalTransform for the spawn override.
    /// </summary>
    public class ZoneAuthoring : MonoBehaviour
    {
        [Tooltip("Vortex: pull enemies toward the zone centre each tick (in addition to the periodic damage).")]
        public bool Vortex = false;

        private class ZoneBaker : Baker<ZoneAuthoring>
        {
            public override void Bake(ZoneAuthoring authoring)
            {
                var entity = GetEntity(authoring, TransformUsageFlags.Dynamic);
                AddComponent(entity, new ZoneEffect
                {
                    Flags = authoring.Vortex ? ZoneEffectFlag.Vortex : (byte)0,
                    // caster / radius / damage / NextTick / ExpireTick are seeded at spawn by AbilityFireSystem.
                });
            }
        }
    }
}