using UnityEngine;

public class PanelQuestBehaviour : MonoBehaviour
{
    private static PanelQuestBehaviour instance;

    public static PanelQuestBehaviour Instance
    {
        get
        {
            return instance;
        }
    }

    private void Start()
    {
        instance = this;
        AttachEvents();
		EnableSideQuests(false);
    }

    [Header("Main quest container")]
    [SerializeField]
    private QuestContainerBehaviour mainQuest;

    [Header("Side quest container")]
    [SerializeField]
    private QuestContainerBehaviour sideQuest;

    [Header("Container`s RectTransform")]
    [SerializeField]
    private RectTransform container;

    public void SetMainQuest(DataTools.Quest quest)
    {
        if (mainQuest.IsAnyToShow)
        {
            mainQuest.RemoveQuest();
        }

        mainQuest.SetQuest(quest);
        SetMainTask(0);
    }

    public void DisableTimerOnMain(int taskIndex=-1)
    {
        mainQuest.DisableTimerOnTask(taskIndex);
    }

    public void SetMainTask(int taskIndex)
    {
        mainQuest.SetTaskActive(taskIndex);

		if(mainQuest.IsAnyToShow)
		{
			mainQuest.UpdateTasksForLinearQuestsIncludingHiddenFlag(taskIndex);

            if (mainQuest.NumOfVisibleTasks == 0)
            {
                mainQuest.ShowNearestNonhiddenTask(GameGlobal.Instance.GetQuestIndex());
            }
		}

        UpdateLayout();
    }

    public void RemoveMainQuest()
    {
        mainQuest.Hide();
        mainQuest.RemoveQuest();
    }

    public void RemoveSideQuest()
    {
        sideQuest.Hide();
        sideQuest.RemoveQuest();
    }

    public void SetMainTask(string taskId)
    {
        mainQuest.SetTaskActive(taskId);

		if(mainQuest.IsAnyToShow)
		{
			mainQuest.UpdateTasksForLinearQuestsIncludingHiddenFlag(mainQuest.LastActive);

            if (mainQuest.NumOfVisibleTasks == 0)
            {
                mainQuest.ShowNearestNonhiddenTask(GameGlobal.Instance.GetQuestIndex());
            }
		}

        UpdateLayout();
    }

    public void CompleteMainTask(int taskIndex)
    {
        mainQuest.SetTaskComplete(taskIndex);
    }

    public void CompleteMainTask(string taskId)
    {
        mainQuest.SetTaskComplete(taskId);
    }

    public void SetSideQuest(DataTools.Quest quest)
    {
        sideQuest.SetQuest(quest);

        if (sideQuest.IsAnyToShow)
        {
            EnableSideQuests(true);
        }
    }

    public void SetSideTask(int taskIndex)
    {
        sideQuest.SetTaskActive(taskIndex);
    }

    public void CompleteSideTask(int taskIndex)
    {
        sideQuest.SetTaskComplete(taskIndex);

        if (!sideQuest.IsAnyToShow)
        {
            EnableSideQuests(false);
        }
    }

    public void EnableSideQuests(bool enable=false)
    {
        sideQuest.gameObject.SetActive(enable);
    }

    public void ShowMainQuest()
    {
        mainQuest.Show();
        UpdateLayout();
    }

    public void HideMainQuest()
    {
        mainQuest.Hide();
        HideSideQuest();
    }

    public void ShowSideQuest()
    {
        sideQuest.Show();
        UpdateLayout();
    }

    public void HideSideQuest()
    {
        sideQuest.Hide();
    }

    public void SetSimpleTask(string task, string title="")
    {
        if(mainQuest.IsQuestComplete)
        {
            mainQuest.RemoveQuest();
            mainQuest.SetFakeTask(task, title);
        }
    }

    private void AttachEvents()
    {
        GameGlobal.Instance.OnTaskCompleted += CompleteMainTask;
        GameGlobal.Instance.OnQuestChanged += SetMainQuest;
    }

    public void UpdateState()
    {
        
    } 

    private void UpdateLayout()
    {
        UnityEngine.UI.LayoutRebuilder.ForceRebuildLayoutImmediate(container);
    }    
}