using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;
using UnityEngine.UIElements;

public class NewGameScript : MonoBehaviour
{
    Foldout foldout;
    private VisualElement root;
    readonly string tabContentName = "NewGameContent";
    SliderInt WinConditionSlider;

    readonly List<Category> selectedCategories = new List<Category>();

    public void SetupTabContentRoot(VisualElement e)
    {
        if (tabContentName == e.name)
        {
            root = e;
            foldout = root.Q<Foldout>("CategoryFoldout");
            foldout.value = false;

            WinConditionSlider = root.Q<SliderInt>("WinConditionSlider");
            WinConditionSlider.RegisterValueChangedCallback(x => WinConditionSlider.label = x.newValue.ToString());
        }
    }

    public void PopulateCategories()
    {
        Debug.Log("Populating categories");
        selectedCategories.Clear();
        foreach (Category c in DatabaseController.Instance.Categories.list)
        {
            Toggle categoryToggle = new Toggle();
            categoryToggle.text = c.name + "(" + c.questionCount + ")";
            categoryToggle.value = true;
            categoryToggle.style.backgroundColor = ConvertColor(c.r, c.g, c.b, c.a);
            categoryToggle.AddToClassList("categoryToggle");
            categoryToggle.RegisterCallback<ClickEvent>(CategorySelectionChange);
            if (!foldout.contentContainer.Children().Any(e => e.name == c.name))
            {
                foldout.Add(categoryToggle);
            }

            selectedCategories.Add(c);
        }

        foldout.text = "Kategorier (Alla " + GetSelectedQuestionCount() + ")";
    }

    private Color ConvertColor(int r, int g, int b, int a)
    {
        return new Color(r / 255f, g / 255f, b / 255f, a / 255f);
    }

    private void CategorySelectionChange(ClickEvent evt)
    {
        Toggle toggle = evt.currentTarget as Toggle;

        if (!toggle.value)
        {
            selectedCategories.Remove(selectedCategories.Find(c => c.name == toggle.text[..toggle.text.IndexOf('(')]));
            foldout.text = "Kategorier (urval " + GetSelectedQuestionCount() + ")";
        }
        else
        {
            selectedCategories.Add(DatabaseController.Instance.Categories.list.Find(c => c.name == toggle.text[..toggle.text.IndexOf('(')]));
            if (foldout.contentContainer.Children().Cast<Toggle>().All(t => t.value))
            {
                foldout.text = "Kategorier (Alla " + GetSelectedQuestionCount() + ")";
            }
        }
    }

    private int GetSelectedQuestionCount()
    {
        int sum = 0;
        selectedCategories.ForEach(c => sum += c.questionCount);
        return sum;
    }

    public void TabSelected(VisualElement element)
    {
        if (tabContentName == element.name)
        {
            PopulateCategories();
        }
    }

}