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

[DefaultExecutionOrder(85)]
public class TurnOnOffTimePeriod : MonoBehaviour
{
    // to set the interactivity
    [Header("Toggle Interactivity:")]
    public bool interactable = true;
    public GameObject legend;

    // compare toggle with the visibility
    private bool year2019 = false, year2020 = false, year2021 = false;

    // Access the humans body to set the visibility
    //private List<Component> humansBody2019 = new List<Component>();
    //private List<Component> humansBody2020 = new List<Component>();
    //private List<Component> humansBody2021 = new List<Component>();
    private GameObject[][] humansBody2019;
    private GameObject[][] humansBody2020;
    private GameObject[][] humansBody2021;

    // Toggle GameObject
    private Toggle[] toggleGO;

    // Start is called before the first frame update
    void Start()
    {
        Component[] years = GetComponentsInChildren<InstantiatePrefab>(true);
        foreach (var year in years)
        {
            GameObject[][] humansGO = year.GetComponent<InstantiatePrefab>().humanGameObject;

            if (humansGO[0][0].CompareTag("2019"))
                humansBody2019 = humansGO;

            else if (humansGO[0][0].CompareTag("2020"))
                humansBody2020 = humansGO;

            else if (humansGO[0][0].CompareTag("2021"))
                humansBody2021 = humansGO;
        }

        toggleGO = legend.GetComponentsInChildren<Toggle>();
        if (!interactable)
            foreach(Toggle toggle in toggleGO)
                toggle.interactable = false;
        else
        {
            string toggleName = "Visibility 2019";
            foreach (var toggle in toggleGO)
                if (toggle.name != toggleName)
                    toggle.isOn = false;
        }
    }

    public void OnVisibility2019Press()
    {
        if (year2019 == true)
        {
            changeVisibility(humansBody2019, true);
            year2019 = false;
            if (!year2020) toggleGO[1].isOn = false;
            if (!year2021) toggleGO[2].isOn = false;
        }
        else
        {
            changeVisibility(humansBody2019, false);
            year2019 = true;
        }
    }

    public void OnVisibility2020Press()
    {
        if (year2020 == true)
        {
            changeVisibility(humansBody2020, true);
            year2020 = false;
            if (!year2019) toggleGO[0].isOn = false;
            if (!year2021) toggleGO[2].isOn = false;
        }
        else
        {
            changeVisibility(humansBody2020, false);
            year2020 = true;
        }
    }

    public void OnVisibility2021Press()
    {
        if (year2021 == true)
        {
            changeVisibility(humansBody2021, true);
            year2021 = false;
            if (!year2019) toggleGO[0].isOn = false;
            if (!year2020) toggleGO[1].isOn = false;
        }
        else
        {
            changeVisibility(humansBody2021, false);
            year2021 = true;
        }
    }

    private void changeVisibility(GameObject[][] humansBodies, bool activeStatus)
    {
        for(int i = 0; i < humansBodies.Length; ++i)
        {
            for(int j = 0; j < humansBodies[i].Length; ++j)
            {
                humansBodies[i][j].gameObject.SetActive(activeStatus);
            }
        }
    }
}