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

public class BuildManagerUIController : MonoBehaviour
{
    [SerializeField] private List<TMP_Dropdown> abilitySlotsDropdowns = new List<TMP_Dropdown>();

    [SerializeField] private GameEventListener_BuildManager onBuildManagerInitialized;

    BuildManager buildManager;

    List<BaseAbility> possibleAbilities = new List<BaseAbility>();
    List<TMP_Dropdown.OptionData> abilitiesOptions = new List<TMP_Dropdown.OptionData>();

    TMP_Dropdown.OptionData optionData = new TMP_Dropdown.OptionData();

    int pickedEntry;
    string pickedEntryName;
    BaseAbility ability;

    private void Awake()
    {
        onBuildManagerInitialized.Response.AddListener(DependencyInjection);


        abilitySlotsDropdowns[0].onValueChanged.AddListener((x) => UpdateAbilitySlotOnDropdownValueChanged(0, x));
        abilitySlotsDropdowns[1].onValueChanged.AddListener((x) => UpdateAbilitySlotOnDropdownValueChanged(1, x));
        abilitySlotsDropdowns[2].onValueChanged.AddListener((x) => UpdateAbilitySlotOnDropdownValueChanged(2, x));
        abilitySlotsDropdowns[3].onValueChanged.AddListener((x) => UpdateAbilitySlotOnDropdownValueChanged(3, x));
    }


    private void UpdateAbilitySlotOnDropdownValueChanged(int dropdownIndex, int pickedEntry)
    {
        ability = GetAbilityFromDropdown(dropdownIndex);

        buildManager.UpdateBuildOnAbilitiesChanged(dropdownIndex, ability);
    }

    private BaseAbility GetAbilityFromDropdown(int dropdownIndex)
    {
        pickedEntry = abilitySlotsDropdowns[dropdownIndex].value;

        return possibleAbilities[pickedEntry];
    }

    private void DependencyInjection(BuildManager buildManager)
    {
        this.buildManager = buildManager;

        InitializeDropdowns();
    }

    private void InitializeDropdowns()
    {
        possibleAbilities = BuildLibrary.Instance.GetBaseAbilities(buildManager.CharacterClass);

        abilitiesOptions.Clear();

        for (int i = 0; i < possibleAbilities.Count; i++)
        {
            optionData = new TMP_Dropdown.OptionData();

            optionData.text = possibleAbilities[i].displayName;
            optionData.image = possibleAbilities[i].Icon;

            abilitiesOptions.Add(optionData);
        }

        for (int i = 0; i < abilitySlotsDropdowns.Count; i++)
        {
            abilitySlotsDropdowns[i].options.Clear();

            abilitySlotsDropdowns[i].AddOptions(abilitiesOptions);

            abilitySlotsDropdowns[i].RefreshShownValue();

            abilitySlotsDropdowns[i].value = possibleAbilities.IndexOf(buildManager.SelectedBuildSlots[i].ability);
        }
    }
}