using System;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.InputSystem;

namespace Player
{
    [RequireComponent(typeof(Rigidbody2D))]
    public class Movement : MonoBehaviour
    {
        [SerializeField] private float runSpeed;
        [SerializeField] private float springPower;
        [SerializeField] private SpriteRenderer spriteRenderer;
        [SerializeField] private float turnDelay;
        [SerializeField] private InputActionReference interactReference;
        
        private bool _onSpring;
        private Rigidbody2D _rb;
        private bool _grounded = true;
        private bool _facingLeft;
        private float _turnDelayTimer;
        private bool _interact;

        private void Awake()
        {
            _rb =  GetComponent<Rigidbody2D>();
            InputSystem.actions.FindActionMap("UI").Disable();
            InputSystem.actions.FindActionMap("Player").Enable();
            interactReference.action.performed += HandleInteraction;
            interactReference.action.canceled += HandleInteraction;
        }

        private void HandleInteraction(InputAction.CallbackContext obj)
        {
            _interact = obj.ReadValueAsButton();
        }

        private void Update()
        {
            _turnDelayTimer += Time.deltaTime;
            spriteRenderer.flipX = !_facingLeft;
            Debug.Log($"{_onSpring} {_interact}");
            if (_onSpring && _interact)
            {
                _onSpring = false;
                _grounded = false;
                _rb.linearVelocityX = 0;
                _rb.AddForce(Vector2.up * springPower, ForceMode2D.Impulse);
            }
        }

        private void FixedUpdate()
        {
            if (_grounded)
            {
                _rb.linearVelocityX = _facingLeft ? -runSpeed :  runSpeed;
            }
        }

        private void OnTriggerEnter2D(Collider2D other)
        {
            if (other.gameObject.layer == LayerMask.NameToLayer("Spring"))
                _onSpring = true;
        }
        
        private void OnTriggerExit2D(Collider2D other)
        {
            if (other.gameObject.layer == LayerMask.NameToLayer("Spring"))
            {
                _onSpring = false;
            }
        }

        private void OnCollisionStay2D(Collision2D other)
        {
            if (_turnDelayTimer < turnDelay) return;
            if (other.gameObject.layer == LayerMask.NameToLayer("Spring")) return;
            var contacts = new List<ContactPoint2D>();
            other.GetContacts(contacts);
            foreach(var c in contacts)
            {
                var x = c.normal.x;
                if (Mathf.Abs(x) > 0.1f)
                {
                    _facingLeft = !_facingLeft;
                    _turnDelayTimer = 0f;
                    return;
                }
            }
        }
    }
}