using UnityEngine;
using Unheimlich.Core.Events;

namespace Unheimlich.Features.Hallucination
{
    /// <summary>
    /// Self-contained zone that triggers a hallucination effect when the player enters.
    /// Handles the once-flag, optional delay, insanity increase, and a discrete HallucinationEvent
    /// — no GameEventTrigger or HallucinationTrigger required alongside it.
    /// </summary>
    public class HallucinationTriggerZone : TriggerZoneBase
    {
        [Header("Zone Behaviour")]
        [Tooltip("Allow the zone to fire again after the player exits and re-enters")]
        [SerializeField] private bool _retriggerable = false;

        [Tooltip("Delay in seconds before the hallucination fires after the player enters")]
        [SerializeField] private float _delay = 0f;

        [Header("Sanity")]
        [Tooltip("Amount of insanity added when the zone fires (0 = no change)")]
        [SerializeField, Range(0f, 1f)] private float _insanityAmount = 0f;

        [Header("Hallucination Event")]
        [Tooltip("Optional discrete hallucination event (ghost word, vision flash, etc.)")]
        [SerializeField] private HallucinationEvent _hallucinationEvent;

        [Header("Debug")]
        [SerializeField] private bool _debugMode;

        protected override bool IsRetriggerable => _retriggerable;

        protected override void OnPlayerEntered(Collider playerCollider)
        {
            if (_delay > 0f)
                Invoke(nameof(Fire), _delay);
            else
                Fire();
        }

        /// <summary>
        /// Fires the hallucination effect. Can also be called from external scripts or UnityEvents.
        /// </summary>
        public void Fire()
        {
            if (HallucinationManager.Instance == null)
            {
                Debug.LogError("[HallucinationTriggerZone] HallucinationManager not found in scene!", this);
                return;
            }

            if (_insanityAmount > 0f)
            {
                HallucinationManager.Instance.AddInsanity(_insanityAmount);

                if (_debugMode)
                    Debug.Log($"[HallucinationTriggerZone] Added {_insanityAmount:F2} insanity on '{gameObject.name}'.", this);
            }

            if (_hallucinationEvent != null)
            {
                HallucinationManager.Instance.TriggerHallucinationEvent(_hallucinationEvent);

                if (_debugMode)
                    Debug.Log($"[HallucinationTriggerZone] Fired event: {_hallucinationEvent.Label}", this);
            }
        }
    }
}