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

namespace ProjectM.Authoring
{
    /// <summary>
    /// Baker helpers shared by the build-structure / automation-machine bakers. These emit the SAME component data
    /// the bakers wrote inline before (no serialized authoring field or baked component change) — they only
    /// deduplicate the repeated <see cref="PlacedStructure"/> stamp and the damageable triad
    /// (<see cref="Health"/> + <see cref="DamageEvent"/> buffer + <see cref="Destructible"/>). Extension methods on
    /// the concrete <see cref="Baker{TAuthoringType}"/> (not IBaker, whose AddComponent/AddBuffer are obsolete) so
    /// the non-obsolete public Baker API resolves.
    /// </summary>
    public static class BakerStructureExt
    {
        /// <summary>Stamp PlacedStructure{Type=type} with the standard baked defaults (Cell/NextTick/LastProcessedTick set at placement).</summary>
        public static void AddPlacedStructure<TAuthoring>(this Baker<TAuthoring> baker, Entity e, byte type)
            where TAuthoring : Component
        {
            baker.AddComponent(e, new PlacedStructure
            {
                Type = type,
                Cell = default,
                NextTick = 0u,
                LastProcessedTick = 0u,
            });
        }

        /// <summary>Make an entity damageable/destructible: Health{Current=Max=maxHp} + the required DamageEvent buffer + Destructible tag.</summary>
        public static void AddDamageable<TAuthoring>(this Baker<TAuthoring> baker, Entity e, float maxHp)
            where TAuthoring : Component
        {
            baker.AddComponent(e, new Health { Current = maxHp, Max = maxHp });
            baker.AddBuffer<DamageEvent>(e);
            baker.AddComponent<Destructible>(e);
        }
    }
}