using System.Collections.Generic;
using UnityEngine;

namespace ShrinkTutorial
{
    public class ShrinkTutorialTrigger : MonoBehaviour
    {
        private static readonly HashSet<string> FiredSessionKeys = new();

        [SerializeField] private string tutorialId = string.Empty;
        [SerializeField] private bool fireOnEnable = true;
        [SerializeField] private bool onlyOncePerSession = true;
        [SerializeField] private bool onlyIfNotCompleted = true;

        private void OnEnable()
        {
            if (fireOnEnable)
                Fire();
        }

        public void Fire()
        {
            if (string.IsNullOrWhiteSpace(tutorialId))
                return;

            var sessionKey = $"{gameObject.scene.path}:{gameObject.GetInstanceID()}:{tutorialId}";
            if (onlyOncePerSession && !FiredSessionKeys.Add(sessionKey))
                return;

            var manager = ShrinkTutorialManager.Instance;
            if (!manager)
            {
                Debug.LogWarning($"[ShrinkTutorial] 触发器 {name} 找不到 TutorialManager。");
                return;
            }

            if (onlyIfNotCompleted && manager.HasCompleted(tutorialId))
                return;

            manager.StartTutorial(tutorialId);
        }

        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
        private static void ResetSessionState()
        {
            FiredSessionKeys.Clear();
        }
    }
}