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

public enum InputAction
{
    Interact,
    Attack,
    Defend,
    Run,
    PauseGame,
    Inventory,
    SelectItem,
    SplitItemStack,
}

public static class InputManager
{
    //Input Dictionary
   public static Dictionary<InputAction, KeyCode> keyMaps = new Dictionary<InputAction, KeyCode>()
   {
       //Movement

       //Interaction
       {InputAction.Interact, KeyCode.E },

       //Combat
       {InputAction.Attack, KeyCode.Mouse0 },
       {InputAction.Defend, KeyCode.Space },

       //Movement
       { InputAction.Run, KeyCode.LeftShift},

       //Menu
       {InputAction.PauseGame, KeyCode.Escape },
       {InputAction.Inventory, KeyCode.I },

       //Inventory Actions
       {InputAction.SelectItem, KeyCode.Mouse0 },
       {InputAction.SplitItemStack, KeyCode.Mouse1 }
   };


    //Change the key buttons
    public static void ChangeKey(InputAction action, KeyCode code)
    {
        //Check if the dictionary contains the action input
        if (keyMaps.ContainsKey(action))
        {
            //Sets the button value of the action input
            keyMaps[action] = code;
        }

        else
        {
            Debug.LogError($"The action '{action}' doesn't exist in the key map.");
        }
    }

    //Get key buttons
    public static KeyCode GetKey(InputAction action)
    {
        //Check if the dictionary contains the action input
        if (keyMaps.ContainsKey(action))
        {
            //Return the button of the action input
            return keyMaps[action];
        }

        else
        {
            Debug.LogError($"The action '{action}' doesn't exist in the key map.");
            return KeyCode.None;
        }
    }

    // Saves key bindings to PlayerPrefs
    public static void SaveKeyBinds()
    {
        foreach (KeyValuePair<InputAction, KeyCode> pair in keyMaps)
        {
            // Store each action's key binding as a string in PlayerPrefs
            PlayerPrefs.SetString(pair.Key.ToString(), pair.Value.ToString());
        }

        // Ensure PlayerPrefs saves all changes
        PlayerPrefs.Save();
    }

    // Loads the key bindings from PlayerPrefs
    public static void LoadKeyBinds()
    {
        foreach(InputAction action in Enum.GetValues(typeof(InputAction)))
        {
            // Check if a key binding for this action exists in PlayerPrefs
            if (PlayerPrefs.HasKey(action.ToString()))
            {
                //Retrieve the saved key binding for this action
                string savedKey = PlayerPrefs.GetString(action.ToString());

                // Try to convert the saved string back into a KeyCode
                if (Enum.TryParse(savedKey, out KeyCode keyCode))
                {
                    // If successful, update the key binding in the dictionary
                    keyMaps[action] = keyCode;
                }
            }
        }
    }
}