using System;
using Sandbox;

namespace Goo.FpsUI;

// A drop-in shootable target for the FPS pack. Attach to any GameObject that has a Collider; the HUD's
// hitscan damages it through the engine's Component.IDamageable interface (the same path TriggerHurt uses).
// Exposes Health / IsDead / Name so FpsHud can drive the hitmarker, killfeed, and XP on a hit or kill.
// Engine-side component, not a Goo panel.
[Title( "FPS Target" ), Category( "FPS UI" ), Icon( "my_location" )]
public sealed class FpsTarget : Component, Component.IDamageable
{
    [Property] public string Name { get; set; } = "Target";                          // shown as the victim in the killfeed
    [Property, Range( 1f, 1000f )] public float MaxHealth { get; set; } = 100f;       // health restored on enable / respawn
    [Property] public bool RespawnOnDeath { get; set; } = true;                       // refill health a moment after dying
    [Property, Range( 0.5f, 10f )] public float RespawnDelay { get; set; } = 3f;      // seconds dead before respawning

    public float Health { get; private set; }
    public bool IsDead => Health <= 0f;

    float _respawnAt;

    protected override void OnEnabled() => Health = MaxHealth;

    // Engine damage entry point: TriggerHurt volumes and the HUD's hitscan both call this.
    public void OnDamage( in DamageInfo damage )
    {
        if ( IsDead ) return;                                       // already down, ignore extra hits
        Health = Math.Max( 0f, Health - damage.Damage );
        if ( IsDead && RespawnOnDeath ) _respawnAt = Time.Now + RespawnDelay;
    }

    protected override void OnUpdate()
    {
        if ( IsDead && RespawnOnDeath && Time.Now >= _respawnAt ) Health = MaxHealth;
    }
}