using System.Collections.Generic;
using UnityEngine;

public class Player : MonoBehaviour
{
    [Header("Управление")]
    [SerializeField] private InSignal DiveSignal;
    [SerializeField] private InSignal ShootSignal;
    [SerializeField] private InSignal ChangeWeapon;

    [Header("Оружие")]
    public List<Weapon> weaponsContainer;

    [Header("Настройки погружения")]
    [SerializeField] private Transform UpPoint;
    [SerializeField] private Transform DownPoint;
    [SerializeField] private float MaxSpeed = 5f;
    [SerializeField] private float SmoothTime = 0.5f; // Время разгона/торможения

    private float currentHeightVelocity = 0f;

    public float DepthPercent => (UpPoint.position.y - transform.position.y) / totalHeight;


    public float DepthPercentToStartPressure = 0.1f;
    public float PressureMultiplier = 0.2f;
    public float PressurePercent { get; private set; }



    public float RotationAngle { get; private set; }


    private float totalHeight = 10f;
    private int weaponIndex = 0;
    public Weapon ActiveWeapon => weaponsContainer[weaponIndex];

    private void Awake()
    {
        totalHeight = UpPoint.position.y - DownPoint.position.y;
    }

    void Update()
    {
        if (PressurePercent < 1f)
        {
            var targetHeight = In.GetButton(DiveSignal) ? DownPoint.position.y : UpPoint.position.y;
            MoveToHeight(targetHeight);
        }
        else
        {
            var targetHeight = UpPoint.position.y;
            MoveToHeight(targetHeight);
        }

        if (In.GetButtonDown(ShootSignal))
        {
            Shoot();
        }
        if (In.GetButtonDown(ChangeWeapon))
        {
            NextWeapon();
        }

        if (DepthPercent > DepthPercentToStartPressure)
        {
            AddPressure();
        }
        else
        {
            PressurePercent -= PressureMultiplier * Time.deltaTime;
        }
    }

    private void AddPressure()
    {
        float pressureStrength = DepthPercent * PressureMultiplier;
        PressurePercent += pressureStrength * Time.deltaTime;
        PressurePercent = Mathf.Clamp01(PressurePercent);
    }

    private void NextWeapon()
    {
        print("Смена оружия");
        weaponIndex = (weaponIndex + 1) % weaponsContainer.Count;
        GameState.WeaponModel.WeaponChangeHandler(ActiveWeapon);
    }

    private void Shoot()
    {
        ActiveWeapon.Shoot();
    }

    public void MoveToHeight(float targetHeight)
    {


        float currentY = transform.position.y;

        float newY = Mathf.SmoothDamp(
            currentY,
            targetHeight,
            ref currentHeightVelocity,
            SmoothTime,
            MaxSpeed
        );

        Vector3 newPosition = transform.position;
        newPosition.y = newY;
        transform.position = newPosition;


        float magnitude = UpPoint.position.y - DownPoint.position.y;
        float t = (transform.position.y - DownPoint.position.y) / magnitude;

        float minDensity = 0.0001f;  // Минимальная плотность (на поверхности)
        float maxDensity = 0.01f;   // Максимальная плотность (на дне)
        RenderSettings.fogDensity = Mathf.Lerp(maxDensity, minDensity, t);
    }

}