using UnityEngine;

namespace DanroJump.Vfx
{
    /// <summary>
    /// Служба визуальных эффектов, программно создающая и настраивающая системы частиц Unity.
    /// Позволяет избежать зависимости от префабов в редакторе и обеспечивает высокую переносимость.
    /// </summary>
    public sealed class GameVfxService : IVfxService
    {
        public void SpawnJumpEffect(Vector3 position)
        {
            var go = new GameObject("VFX_Jump");
            go.transform.position = position;
            var ps = go.AddComponent<ParticleSystem>();

            var main = ps.main;
            main.startColor = new Color(0.9f, 0.9f, 0.9f, 0.5f);
            main.startSize = new ParticleSystem.MinMaxCurve(0.08f, 0.22f);
            main.startSpeed = new ParticleSystem.MinMaxCurve(1.5f, 3.5f);
            main.startLifetime = new ParticleSystem.MinMaxCurve(0.2f, 0.45f);
            main.duration = 0.25f;
            main.loop = false;
            main.gravityModifier = 0.6f;

            var shape = ps.shape;
            shape.shapeType = ParticleSystemShapeType.Cone;
            shape.angle = 35f;
            shape.radius = 0.15f;
            shape.rotation = new Vector3(90f, 0f, 0f); // Направление вниз под ноги

            var emission = ps.emission;
            emission.rateOverTime = 0;
            emission.SetBursts(new ParticleSystem.Burst[] { new ParticleSystem.Burst(0f, 12) });

            var colorOverLifetime = ps.colorOverLifetime;
            colorOverLifetime.enabled = true;
            var gradient = new Gradient();
            gradient.SetKeys(
                new GradientColorKey[] { new GradientColorKey(Color.white, 0f), new GradientColorKey(Color.white, 1f) },
                new GradientAlphaKey[] { new GradientAlphaKey(0.6f, 0f), new GradientAlphaKey(0f, 1f) }
            );
            colorOverLifetime.color = gradient;

            ps.Play();
            Object.Destroy(go, main.duration + main.startLifetime.constantMax);
        }

        public void SpawnCoinCollectedEffect(Vector3 position)
        {
            var go = new GameObject("VFX_CoinCollected");
            go.transform.position = position;
            var ps = go.AddComponent<ParticleSystem>();

            var main = ps.main;
            main.startColor = new Color(1.0f, 0.85f, 0.0f, 0.9f); // Золотой цвет
            main.startSize = new ParticleSystem.MinMaxCurve(0.1f, 0.25f);
            main.startSpeed = new ParticleSystem.MinMaxCurve(2f, 4f);
            main.startLifetime = new ParticleSystem.MinMaxCurve(0.3f, 0.6f);
            main.duration = 0.3f;
            main.loop = false;
            main.gravityModifier = -0.2f; // Легкий подъем вверх

            var shape = ps.shape;
            shape.shapeType = ParticleSystemShapeType.Sphere;
            shape.radius = 0.1f;

            var emission = ps.emission;
            emission.rateOverTime = 0;
            emission.SetBursts(new ParticleSystem.Burst[] { new ParticleSystem.Burst(0f, 18) });

            var colorOverLifetime = ps.colorOverLifetime;
            colorOverLifetime.enabled = true;
            var gradient = new Gradient();
            gradient.SetKeys(
                new GradientColorKey[] { new GradientColorKey(new Color(1f, 0.9f, 0.2f), 0f), new GradientColorKey(new Color(1f, 0.5f, 0f), 1f) },
                new GradientAlphaKey[] { new GradientAlphaKey(0.9f, 0f), new GradientAlphaKey(0f, 1f) }
            );
            colorOverLifetime.color = gradient;

            ps.Play();
            Object.Destroy(go, main.duration + main.startLifetime.constantMax);
        }

        public void SpawnPlayerDeathEffect(Vector3 position)
        {
            var go = new GameObject("VFX_PlayerDeath");
            go.transform.position = position;
            var ps = go.AddComponent<ParticleSystem>();

            var main = ps.main;
            main.startColor = new Color(0.8f, 0.1f, 0.1f, 0.8f); // Красный / серый взрыв
            main.startSize = new ParticleSystem.MinMaxCurve(0.15f, 0.35f);
            main.startSpeed = new ParticleSystem.MinMaxCurve(3f, 7f);
            main.startLifetime = new ParticleSystem.MinMaxCurve(0.4f, 0.8f);
            main.duration = 0.5f;
            main.loop = false;
            main.gravityModifier = 0.8f;

            var shape = ps.shape;
            shape.shapeType = ParticleSystemShapeType.Sphere;
            shape.radius = 0.25f;

            var emission = ps.emission;
            emission.rateOverTime = 0;
            emission.SetBursts(new ParticleSystem.Burst[] { new ParticleSystem.Burst(0f, 35) });

            var colorOverLifetime = ps.colorOverLifetime;
            colorOverLifetime.enabled = true;
            var gradient = new Gradient();
            gradient.SetKeys(
                new GradientColorKey[] { new GradientColorKey(new Color(0.9f, 0.2f, 0.2f), 0f), new GradientColorKey(new Color(0.3f, 0.3f, 0.3f), 1f) },
                new GradientAlphaKey[] { new GradientAlphaKey(0.9f, 0f), new GradientAlphaKey(0f, 1f) }
            );
            colorOverLifetime.color = gradient;

            ps.Play();
            Object.Destroy(go, main.duration + main.startLifetime.constantMax);
        }

        public void SpawnPrizeEffect(Vector3 position)
        {
            var go = new GameObject("VFX_PrizeWin");
            go.transform.position = position;
            var ps = go.AddComponent<ParticleSystem>();

            var main = ps.main;
            main.startColor = Color.white; // Конфетти будут разных цветов
            main.startSize = new ParticleSystem.MinMaxCurve(0.12f, 0.28f);
            main.startSpeed = new ParticleSystem.MinMaxCurve(4f, 8f);
            main.startLifetime = new ParticleSystem.MinMaxCurve(0.6f, 1.2f);
            main.duration = 0.8f;
            main.loop = false;
            main.gravityModifier = 0.4f;

            var shape = ps.shape;
            shape.shapeType = ParticleSystemShapeType.Hemisphere; // Разлет вверх полусферой
            shape.radius = 0.3f;
            shape.rotation = new Vector3(-90f, 0f, 0f); // Поворот вверх

            var emission = ps.emission;
            emission.rateOverTime = 0;
            emission.SetBursts(new ParticleSystem.Burst[] { new ParticleSystem.Burst(0f, 50) });

            // Добавим смену цветов
            var colorBySpeed = ps.colorBySpeed; // Используем градиент для создания разноцветных конфетти
            var colorOverLifetime = ps.colorOverLifetime;
            colorOverLifetime.enabled = true;
            
            // Настроим случайный цвет при рождении через градиент с множеством ключей или Random Between Two Colors
            main.startColor = new ParticleSystem.MinMaxGradient(
                new Color(0.2f, 0.6f, 1.0f), // Голубой
                new Color(1.0f, 0.2f, 0.6f)  // Розовый
            );

            ps.Play();
            Object.Destroy(go, main.duration + main.startLifetime.constantMax);
        }

        public void SpawnComErrorEffect(Vector3 position)
        {
            var go = new GameObject("VFX_ComError");
            go.transform.position = position;
            var ps = go.AddComponent<ParticleSystem>();

            var main = ps.main;
            main.startColor = new Color(1.0f, 0.3f, 0.0f, 0.9f); // Оранжевые тревожные искры
            main.startSize = new ParticleSystem.MinMaxCurve(0.06f, 0.18f);
            main.startSpeed = new ParticleSystem.MinMaxCurve(3f, 6f);
            main.startLifetime = new ParticleSystem.MinMaxCurve(0.25f, 0.5f);
            main.duration = 0.4f;
            main.loop = false;
            main.gravityModifier = 0.3f;

            var shape = ps.shape;
            shape.shapeType = ParticleSystemShapeType.Cone;
            shape.angle = 60f;
            shape.radius = 0.1f;

            var emission = ps.emission;
            emission.rateOverTime = 0;
            emission.SetBursts(new ParticleSystem.Burst[] { new ParticleSystem.Burst(0f, 20) });

            var colorOverLifetime = ps.colorOverLifetime;
            colorOverLifetime.enabled = true;
            var gradient = new Gradient();
            gradient.SetKeys(
                new GradientColorKey[] { new GradientColorKey(new Color(1f, 0.5f, 0f), 0f), new GradientColorKey(new Color(0.8f, 0.1f, 0f), 1f) },
                new GradientAlphaKey[] { new GradientAlphaKey(0.9f, 0f), new GradientAlphaKey(0f, 1f) }
            );
            colorOverLifetime.color = gradient;

            ps.Play();
            Object.Destroy(go, main.duration + main.startLifetime.constantMax);
        }
    }
}