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

namespace SimpleInventorySystem
{
    public class DisplayMessageSystem : MonoBehaviour
    {
        public static DisplayMessageSystem instance;
        public DisplayMessage[] displayMessages;
        protected InventorySystem.States currentState;
        [HideInInspector] public string NameOfItemInWorldWithFocus;

        private void Awake()
        {
            instance = this;
        }

        // Start is called before the first frame update
        void Start()
        {
            foreach (DisplayMessage displayMessage in displayMessages)
            {
                TextMeshProUGUI message = displayMessage.message;

                if (displayMessage != null && message != null)
                {
                    string text = message.text;
                    if (text.Contains("{key:interactKey}"))
                        message.text = message.text.Replace("{key:interactKey}", "[ " + InventorySystem.instance.interactKey.ToString() + " ]");
                }

                displayMessage.SetOriginalMessage();
            }
        }

        // Update is called once per frame
        void Update()
        {
            if(currentState != InventorySystem.instance.CurrentState)
            {
                currentState = InventorySystem.instance.CurrentState;

                foreach (DisplayMessage displayMessage in displayMessages)
                {
                    if (currentState == InventorySystem.States.Undefined)
                    {
                        displayMessage.message.gameObject.SetActive(false);
                    }
                    else if (currentState == displayMessage.displayState)
                    {
                        displayMessage.message.gameObject.SetActive(true);
                    }
                    else
                    {
                        displayMessage.message.gameObject.SetActive(false);
                    }
                }
            }
            //if(NameOfItemInWorldWithFocus != )
            foreach (DisplayMessage displayMessage in displayMessages)
            {
                TextMeshProUGUI message = displayMessage.message;
                if (displayMessage != null && message != null && displayMessage.originalMessage.Contains("{item:name}"))
                {
                    message.text = displayMessage.originalMessage.Replace("{item:name}", NameOfItemInWorldWithFocus);
                }
            }
        }
    }

    [Serializable]
    public class DisplayMessage
    {
        public TextMeshProUGUI message;
        public InventorySystem.States displayState;
        [HideInInspector] public string originalMessage;

        public DisplayMessage()
        {

        }

        public void SetOriginalMessage()
        {
            originalMessage = message.text;
        }
    }
}