using System.Collections;
using System.Reflection;
using BumpCombat.Combat;
using BumpCombat.Core;
using BumpCombat.Enemies;
using BumpCombat.Player;
using BumpCombat.Progression;
using BumpCombat.Spawning;
using NUnit.Framework;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.TestTools;

namespace BumpCombat.PlayModeTests
{
    public sealed class HurtRecoveryVisualTests
    {
        [UnityTest]
        public IEnumerator HurtBlink_PausesWithImmunityAndClearsAfterRecovery()
        {
            ArtifactRewardController.GrantCatalogForTests = true;
            RunManager.ForceProductionModeForTests = false;
            Time.timeScale = 1f;
            yield return SceneManager.LoadSceneAsync("CombatPrototype");
            yield return null;
            yield return null;
            Object.FindAnyObjectByType<SpawnDirector>().enabled = false;
            foreach (var enemy in Object.FindObjectsByType<EnemyController>(FindObjectsSortMode.None))
                enemy.gameObject.SetActive(false);
            var health = Object.FindAnyObjectByType<PlayerHealth>();
            var feedback = health.GetComponent<CombatFeedback>();
            var body = health.GetComponent<SpriteRenderer>();
            var routine = typeof(CombatFeedback).GetField("playerVisualCoroutine", BindingFlags.NonPublic | BindingFlags.Instance);
            Color original = body.color;
            Assert.That(health.TryTakeDamage(1f, Vector2.zero, 0f), Is.True);
            yield return new WaitForSeconds(0.2f);
            Assert.That(RunManager.Instance.TryOpenPause(), Is.True);
            yield return null;
            Color paused = body.color;
            yield return new WaitForSecondsRealtime(1.2f);
            Assert.That(health.IsInvulnerable, Is.True);
            Assert.That(routine.GetValue(feedback), Is.Not.Null, "Damage blink must not expire on real time during pause.");
            Assert.That(body.color, Is.EqualTo(paused), "Blink phase freezes with game time.");
            Assert.That(RunManager.Instance.ClosePause(), Is.True);
            yield return new WaitForSeconds(0.4f);
            Assert.That(health.IsHurtMovementLocked, Is.False);
            Assert.That(health.IsInvulnerable, Is.True);
            Assert.That(routine.GetValue(feedback), Is.Not.Null);
            yield return new WaitForSeconds(0.5f);
            Assert.That(health.IsInvulnerable, Is.False);
            Assert.That(routine.GetValue(feedback), Is.Null);
            Assert.That(body.color, Is.EqualTo(original));
        }

        [TearDown]
        public void TearDown()
        {
            ArtifactRewardController.GrantCatalogForTests = false;
            RunManager.ForceProductionModeForTests = false;
            Time.timeScale = 1f;
        }
    }
}