using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

namespace Game {
    public class Player : MonoBehaviour {

        private Vector3 PlayerStartPosition;
        public Text score;

        public float SpeedMultiplayer = 1;

        private Camera _mainCamera {
            get {
                return Camera.main;
            }
        }
        //TO DO remove me later
        public bool playing = false;

        void Start() {
            PlayerStartPosition = gameObject.transform.position;
        }

        public void Update() {
            if (Input.GetMouseButtonDown(0))
                playing = true;
            if (playing) {
                CheckCollider();
                MoveForward();
                MoveSideWays();
            } else {
                gameObject.transform.position = PlayerStartPosition;
            }
        }

        private bool Clicked = false;
        private float displacement = 0;
        private void MoveSideWays() {
            if (!Clicked && Input.GetMouseButton(0)) {
                displacement = WorldPoint(Input.mousePosition).x - gameObject.transform.position.x;
                Clicked = true;
            } else if (Clicked && !Input.GetMouseButton(0)) Clicked = false;
            else {
                gameObject.transform.position = new Vector3(
                        WorldPoint(Input.mousePosition).x - displacement,
                        gameObject.transform.position.y,
                        gameObject.transform.position.z
                    );
            }


        }

        private Vector3 WorldPoint(Vector3 screenpoint) {
            return _mainCamera.ScreenToWorldPoint(screenpoint);
        }

        private void MoveForward() {
            var v2 = gameObject.transform.position.ToVector2();
            Vector2 positionTo = Vector2.Lerp(v2, v2 + Vector2.up, 0.01f * SpeedMultiplayer);
            gameObject.transform.position = positionTo.ToVector3(gameObject.transform.position.z);
        }

        private bool CheckCollider() {
            var hit = Physics2D.CircleCast(gameObject.transform.position.ToVector2(), 0.2f, Vector2.zero);
            if (hit.collider == null)
                return false;
            switch (hit.collider.name) {
                case "hole":
                    Debug.Log(hit.collider.name);
                    this.transform.position = PlayerStartPosition;
                    _mainCamera.GetComponent<Game>().GenerateNextMap();
                    score.text = (int.Parse(score.text) + 1).ToString();
                    playing = false;
                    break;
                default:
                    Debug.Log(hit.collider.name);
                    this.transform.position = PlayerStartPosition;
                    _mainCamera.GetComponent<Game>().ResetMap();
                    score.text = 0.ToString();
                    playing = false;
                    break;
            }
            return true;
        }

    }
}