using System.Linq;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.AI;

public class CastingToObject : MonoBehaviour
{
    [Header("Set Camera Perspective (cam1) and TopDown (cam2)")]
    public Camera cam1;
    public Camera cam2;
    [Header("Set Layer Mask")]
    public LayerMask layer;

    [Header("Set Materials")]
    public Material defaultMaterial;
    public Material materialMost;
    public Material materialLow;
    public Material materialHigh;
    [Header("Intersection between Most (1), Low (2), High (3)")]
    public Material material12;
    public Material material13;
    public Material material23;
    public Material material123;

    [Header("GameObject with MarketStall Childs")]
    public GameObject marketStalls;

    private Camera currentCam;
    private RaycastHit theObject;
    private RaycastHit oldObject1;
    private RaycastHit oldObject2;
    private RaycastHit oldObject3;
    private int selectedToggle = 3; // 3-Nothing; 0-Most; 1-Low, 2-High

    // To have access to the final Objects
    public static string[] marketStallNames;
    public static List<int>[][] selectedMarketStalls;
    public static List<float>[][] selectedMarketStallsTimes;

    // Messure time needed to select the market stalls
    private float time0 = 0.0f;
    private float time1 = 0.0f;
    private float time2 = 0.0f;

    private NavMeshModifier[] childs;

    private void Start()
    {
        currentCam = cam1;
        oldObject1 = new RaycastHit();
        oldObject2 = new RaycastHit();
        oldObject3 = new RaycastHit();

        childs = marketStalls.GetComponentsInChildren<NavMeshModifier>();

        selectedMarketStalls = new List<int>[childs.Length][];
        selectedMarketStallsTimes = new List<float>[childs.Length][];
        marketStallNames = new string[childs.Length];

        for (int i = 0; i < childs.Length; i++)
        {
            selectedMarketStalls[i] = new List<int>[3];
            selectedMarketStallsTimes[i] = new List<float>[3];
            marketStallNames[i] = childs[i].transform.name;

            for (int j = 0; j < selectedMarketStalls[i].Length; j++)
            {
                selectedMarketStalls[i][j] = new List<int>();
                selectedMarketStalls[i][j].Add(0);
                selectedMarketStallsTimes[i][j] = new List<float>(1);
                selectedMarketStallsTimes[i][j].Add(0);
            }
        }
    }

    public void OnChangeViewClicked()
    {
        if(currentCam == cam1)
            currentCam = cam2;
        else
            currentCam = cam1;
    }

    public void OnMostVisitedToggled(bool isOn)
    {
        if (isOn)
            selectedToggle = 0;
        else
            selectedToggle = 3;
    }

    public void OnLowWaitingTimeToggled(bool isOn)
    {
        if (isOn)
            selectedToggle = 1;
        else
            selectedToggle = 3;
    }

    public void OnHighWaitingTimeToggled(bool isOn)
    {
        if (isOn)
            selectedToggle = 2;
        else
            selectedToggle = 3;
    }

    public void OnSubmitClicked()
    {
        selectedMarketStalls = new List<int>[childs.Length][];
        selectedMarketStallsTimes = new List<float>[childs.Length][];
        marketStallNames = new string[childs.Length];

        for (int i = 0; i < childs.Length; i++)
        {
            selectedMarketStalls[i] = new List<int>[3];
            selectedMarketStallsTimes[i] = new List<float>[3];
            marketStallNames[i] = childs[i].transform.name;

            for (int j = 0; j < selectedMarketStalls[i].Length; j++)
            {
                selectedMarketStalls[i][j] = new List<int>();
                selectedMarketStalls[i][j].Add(0);
                selectedMarketStallsTimes[i][j] = new List<float>(1);
                selectedMarketStallsTimes[i][j].Add(0);
            }
        }
    }

    private void HighlightMarketStalls()
    {
        for (int i = 0; i < selectedMarketStalls.Length; i++)
        {
            var theStall = marketStalls.transform.Find(marketStallNames[i]);

            if (selectedMarketStalls[i][0].LastOrDefault() == 0 && selectedMarketStalls[i][1].LastOrDefault() == 0 && selectedMarketStalls[i][2].LastOrDefault() == 0)
            {
                theStall.transform.GetComponent<Renderer>().material = defaultMaterial;
            }
            else if (selectedMarketStalls[i][0].LastOrDefault() == 1 && selectedMarketStalls[i][1].LastOrDefault() == 0 && selectedMarketStalls[i][2].LastOrDefault() == 0)
            {
                theStall.transform.GetComponent<Renderer>().material = materialMost;
            }
            else if (selectedMarketStalls[i][0].LastOrDefault() == 0 && selectedMarketStalls[i][1].LastOrDefault() == 1 && selectedMarketStalls[i][2].LastOrDefault() == 0)
            {
                theStall.transform.GetComponent<Renderer>().material = materialLow;
            }
            else if (selectedMarketStalls[i][0].LastOrDefault() == 0 && selectedMarketStalls[i][1].LastOrDefault() == 0 && selectedMarketStalls[i][2].LastOrDefault() == 1)
            {
                theStall.transform.GetComponent<Renderer>().material = materialHigh;
            }
            else if (selectedMarketStalls[i][0].LastOrDefault() == 1 && selectedMarketStalls[i][1].LastOrDefault() == 1 && selectedMarketStalls[i][2].LastOrDefault() == 0)
            {
                theStall.transform.GetComponent<Renderer>().material = material12;
            }
            else if (selectedMarketStalls[i][0].LastOrDefault() == 1 && selectedMarketStalls[i][1].LastOrDefault() == 0 && selectedMarketStalls[i][2].LastOrDefault() == 1)
            {
                theStall.transform.GetComponent<Renderer>().material = material13;
            }
            else if (selectedMarketStalls[i][0].LastOrDefault() == 0 && selectedMarketStalls[i][1].LastOrDefault() == 1 && selectedMarketStalls[i][2].LastOrDefault() == 1)
            {
                theStall.transform.GetComponent<Renderer>().material = material23;
            }
            else if (selectedMarketStalls[i][0].LastOrDefault() == 1 && selectedMarketStalls[i][1].LastOrDefault() == 1 && selectedMarketStalls[i][2].LastOrDefault() == 1)
            {
                theStall.transform.GetComponent<Renderer>().material = material123;
            }
        }
    }

    private bool isMouseOverUI()
    {
        return EventSystem.current.IsPointerOverGameObject();
    }

    // Update is called once per frame
    void FixedUpdate()
    {
        if (Input.GetMouseButtonDown(0) && !isMouseOverUI())
        {
            var ray = currentCam.ScreenPointToRay(Input.mousePosition);
            if (Physics.Raycast(ray, out theObject, float.MaxValue, layer))
            {
                int index = System.Array.IndexOf(marketStallNames, theObject.transform.name);

                if (selectedToggle == 0)
                {
                    if (!theObject.Equals(oldObject1))
                    {
                        selectedMarketStalls[index][selectedToggle].Add(1);
                        selectedMarketStallsTimes[index][selectedToggle].Add(time0);
                        if (oldObject1.transform != null)
                        {
                            selectedMarketStalls[System.Array.IndexOf(marketStallNames, oldObject1.transform.name)][selectedToggle].Add(0);
                            selectedMarketStallsTimes[System.Array.IndexOf(marketStallNames, oldObject1.transform.name)][selectedToggle].Add(0);
                        }

                        oldObject1 = theObject;
                    }
                    else
                    {
                        selectedMarketStalls[index][selectedToggle].Add(0);
                        selectedMarketStallsTimes[index][selectedToggle].Add(0);
                        oldObject1 = new RaycastHit();
                    }
                }
                else if (selectedToggle == 1)
                {
                    if (!theObject.Equals(oldObject2))
                    {
                        selectedMarketStalls[index][selectedToggle].Add(1);
                        selectedMarketStallsTimes[index][selectedToggle].Add(time1);
                        if (oldObject2.transform != null)
                        {
                            selectedMarketStalls[System.Array.IndexOf(marketStallNames, oldObject2.transform.name)][selectedToggle].Add(0);
                            selectedMarketStallsTimes[System.Array.IndexOf(marketStallNames, oldObject2.transform.name)][selectedToggle].Add(0);
                        }

                        oldObject2 = theObject;
                    }
                    else
                    {
                        selectedMarketStalls[index][selectedToggle].Add(0);
                        selectedMarketStallsTimes[index][selectedToggle].Add(0);
                        oldObject2 = new RaycastHit();
                    }
                }
                else if (selectedToggle == 2)
                {
                    if (!theObject.Equals(oldObject3))
                    {
                        selectedMarketStalls[index][selectedToggle].Add(1);
                        selectedMarketStallsTimes[index][selectedToggle].Add(time2);
                        if (oldObject3.transform != null)
                        {
                            selectedMarketStalls[System.Array.IndexOf(marketStallNames, oldObject3.transform.name)][selectedToggle].Add(0);
                            selectedMarketStallsTimes[System.Array.IndexOf(marketStallNames, oldObject3.transform.name)][selectedToggle].Add(0);
                        }

                        oldObject3 = theObject;
                    }
                    else
                    {
                        selectedMarketStalls[index][selectedToggle].Add(0);
                        selectedMarketStallsTimes[index][selectedToggle].Add(0);
                        oldObject3 = new RaycastHit();
                    }
                }
            }
        }

        HighlightMarketStalls();

        time0 += Time.deltaTime;
        time1 += Time.deltaTime;
        time2 += Time.deltaTime;
    }
}