using UnityEngine;
using Unheimlich.Core.Events;

namespace Unheimlich.Features.Hallucination
{
    /// <summary>
    /// Drives the HallucinationManager when its GameEventTrigger fires.
    /// Can increase sanity, fire a discrete HallucinationEvent, or both.
    /// Compose a GameEventTrigger on the same GameObject to control the firing condition
    /// (OnStart, OnEnable, delay, once-flag, external call via UnityEvent, etc.).
    /// </summary>
    [RequireComponent(typeof(GameEventTrigger))]
    public class HallucinationTrigger : MonoBehaviour
    {
        [Header("Sanity")]
        [Tooltip("Amount of sanity to add when this trigger fires (0 = no change)")]
        [SerializeField, Range(0f, 1f)] private float _insanityAmount = 0f;

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

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

        private GameEventTrigger _eventTrigger;

        private void Awake()
        {
            _eventTrigger = GetComponent<GameEventTrigger>();
            _eventTrigger.OnTriggered += Trigger;
        }

        private void OnDestroy()
        {
            if (_eventTrigger != null)
                _eventTrigger.OnTriggered -= Trigger;
        }

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

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

                if (_debugMode)
                    Debug.Log($"[HallucinationTrigger] Added {_insanityAmount:F2} insanity. New sanity: {HallucinationManager.Instance.SanityLevel:F2}", this);
            }

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

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