using UnityEngine;
using Unheimlich.Features.Hallucination;
using Unheimlich.Features.Dialogue.UI;

namespace Unheimlich.World.Environment
{
    /// <summary>
    /// Sits on each stair-segment prefab and acts as the single configuration point
    /// for the InfiniteStaircaseController.
    ///
    /// Responsibilities:
    ///   - Holds a reference to the segment's FloatingLabel (set in prefab).
    ///   - Holds a reference to the segment's HallucinationTriggerZone (set in prefab).
    ///   - Exposes Configure() so the controller can push the right word and event
    ///     at spawn time without any GetComponent chains on the controller side.
    /// </summary>
    public class StaircaseSegment : MonoBehaviour
    {
        [Header("References")]
        [Tooltip("FloatingLabel present on this prefab. Assign in the prefab inspector.")]
        [SerializeField] private FloatingLabel _floatingLabel;

        [Tooltip("HallucinationTriggerZone present on this prefab. Assign in the prefab inspector.")]
        [SerializeField] private HallucinationTriggerZone _triggerZone;

        // ─── Public API ────────────────────────────────────────────────────────

        /// <summary>
        /// Called by InfiniteStaircaseController right after this segment is spawned.
        /// Sets the word on the FloatingLabel and overrides the HallucinationEvent on the zone.
        /// </summary>
        /// <param name="word">Text to display. Null or empty = label keeps its prefab default.</param>
        /// <param name="hallucinationEvent">Event to fire when the player enters the zone. Null = no event.</param>
        public void Configure(string word, HallucinationEvent hallucinationEvent)
        {
            if (_floatingLabel != null && !string.IsNullOrEmpty(word))
                _floatingLabel.SetText(word);

            if (_triggerZone != null)
                _triggerZone.SetEvent(hallucinationEvent);
        }

        // ─── Editor helpers ────────────────────────────────────────────────────

#if UNITY_EDITOR
        private void Reset()
        {
            _floatingLabel = GetComponentInChildren<FloatingLabel>();
            _triggerZone   = GetComponentInChildren<HallucinationTriggerZone>();
        }
#endif
    }
}