using System.Collections.Generic;
using UnityEngine;
using Unheimlich.Features.Dialogue.UI;

namespace Unheimlich.Features.Hallucination
{
    // ─── Per-label override data ───────────────────────────────────────────────

    /// <summary>
    /// Describes how a specific FloatingLabel should behave when a HallucinationEvent fires.
    /// </summary>
    [System.Serializable]
    public class FloatingLabelOverride
    {
        [Tooltip("The FloatingLabel to override when this event fires.")]
        public FloatingLabel Target;

        [Header("Shake Override")]
        [Tooltip("Absolute shake radius applied during the override (world units). 0 = no shake.")]
        [Min(0f)] public float ShakeRadius     = 0.15f;
        [Tooltip("Shake speed during the override.")]
        [Min(0f)] public float ShakeSpeed      = 3f;
        [Tooltip("Shake smoothness during the override.")]
        [Min(0f)] public float ShakeSmoothness = 4f;

        [Header("Ghost Trail Override")]
        public bool GhostEnabled = true;
        [Range(0f, 1f)] public float GhostAlpha = 0.5f;

        [Header("Duration")]
        [Tooltip("How long the override lasts (seconds) before reverting to the sanity baseline.")]
        [Min(0f)] public float Duration = 2f;
    }

    // ─── ScriptableObject ──────────────────────────────────────────────────────

    /// <summary>
    /// ScriptableObject describing a discrete hallucination event.
    ///
    /// Ghost word spawn removed. Words live on FloatingLabel components in the scene.
    /// LabelOverrides targets specific labels with timed shake/ghost overrides.
    /// </summary>
    [CreateAssetMenu(
        fileName = "HallucinationEvent",
        menuName  = "Unheimlich/Hallucination/Hallucination Event")]
    public class HallucinationEvent : ScriptableObject
    {
        [Header("Identity")]
        [SerializeField] private string _label;

        [Header("Sanity Cost")]
        [SerializeField, Range(0f, 1f)] private float _sanityCost = 0f;

        [Header("Floating Label Overrides")]
        [Tooltip("One entry per FloatingLabel to affect when this event fires.")]
        [SerializeField] private List<FloatingLabelOverride> _labelOverrides = new();

        // ─── Public Accessors ──────────────────────────────────────────────────

        public string                              Label          => _label;
        public float                               SanityCost     => _sanityCost;
        public IReadOnlyList<FloatingLabelOverride> LabelOverrides => _labelOverrides;

        // ─── Internal ─────────────────────────────────────────────────────────

        /// <summary>
        /// Pushes all label overrides onto their target FloatingLabels.
        /// Called by HallucinationManager.TriggerHallucinationEvent().
        /// </summary>
        internal void ApplyLabelOverrides()
        {
            foreach (FloatingLabelOverride entry in _labelOverrides)
            {
                if (entry.Target == null) continue;

                entry.Target.ApplyOverride(
                    entry.ShakeRadius,
                    entry.ShakeSpeed,
                    entry.ShakeSmoothness,
                    entry.GhostEnabled,
                    entry.GhostAlpha,
                    entry.Duration); 
            }
        }
    }
}