using System;
using UnityEngine;

[Serializable]
public struct ShockwaveZone
{
    [Min(0.1f)] public float Radius;
    [Min(0f)] public float PlayerImpulse;
    [Min(0f)] public float RigidbodyImpulse;
    [Range(0f, 1f)] public float UpwardBias;
    [Min(0f)] public float CameraShakeAmplitude;
    [Min(0f)] public float CameraShakeDuration;
    [Min(0.1f)] public float CameraShakeFrequency;
}

[CreateAssetMenu(
    fileName = "ShockwaveProfile",
    menuName = "FORT-BO/Effects/Shockwave Profile")]
public sealed class ShockwaveProfile : ScriptableObject
{
    [Tooltip("Zones are evaluated from the smallest radius to the largest.")]
    [SerializeField] private ShockwaveZone[] zones = Array.Empty<ShockwaveZone>();

    public float MaximumRadius
    {
        get
        {
            float maximum = 0f;
            foreach (ShockwaveZone zone in zones)
                maximum = Mathf.Max(maximum, zone.Radius);
            return maximum;
        }
    }

    public bool TryEvaluate(float distance, out ShockwaveZone result)
    {
        result = default;
        float bestRadius = float.PositiveInfinity;
        bool found = false;

        foreach (ShockwaveZone zone in zones)
        {
            if (distance > zone.Radius || zone.Radius >= bestRadius)
                continue;

            result = zone;
            bestRadius = zone.Radius;
            found = true;
        }

        return found;
    }

    private void OnValidate()
    {
        for (int index = 0; index < zones.Length; index++)
        {
            ShockwaveZone zone = zones[index];
            zone.Radius = Mathf.Max(0.1f, zone.Radius);
            zone.PlayerImpulse = Mathf.Max(0f, zone.PlayerImpulse);
            zone.RigidbodyImpulse = Mathf.Max(0f, zone.RigidbodyImpulse);
            zone.CameraShakeAmplitude = Mathf.Max(0f, zone.CameraShakeAmplitude);
            zone.CameraShakeDuration = Mathf.Max(0f, zone.CameraShakeDuration);
            zone.CameraShakeFrequency = Mathf.Max(0.1f, zone.CameraShakeFrequency);
            zones[index] = zone;
        }
    }
}