using System;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

namespace OctoCore.Localization
{
    public class OctoLocalizedText : MonoBehaviour
    {
        [SerializeField] OctoLocalizedTextData data;
        public OctoLocalizedTextData Data
        {
            get => data;
            set => data = value;
        }       
        [SerializeField] Text text;
        [SerializeField] TextMeshPro textMeshPro;
        [SerializeField] TextMeshProUGUI textMeshProUGUI;

        Action localize;

    #if UNITY_EDITOR
        void OnValidate()
        {
            if (Application.isPlaying)
                return;

            bool setDirty = false;
            if (!text && !textMeshPro && !textMeshProUGUI)
            {
                text = GetComponent<Text>();
                textMeshPro = GetComponent<TextMeshPro>();
                textMeshProUGUI = GetComponent<TextMeshProUGUI>();

                if (text || textMeshPro || textMeshProUGUI)
                    setDirty = true;
            }

            if (text && text.transform != transform)
            {
                text = null;
                setDirty = true;
            }

            if (textMeshPro && textMeshPro.transform != transform)
            {
                textMeshPro = null;
                setDirty = true;
            }

            if (textMeshProUGUI && textMeshProUGUI.transform != transform)
            {
                textMeshProUGUI = null;
                setDirty = true;
            }

            if (setDirty)
                UnityEditor.EditorUtility.SetDirty(this);

            Localize();
        }
    #endif

        void Awake()
        {
            if (!OctoCore.Instance)
            {
                Debug.LogWarning($"[OctoLocalizedText] OctoCore.Instance not found");
                return;
            }
            
            Localize();
            OctoCore.Instance.Localization.SubscribeOnLanguageWrittenChange(localize = Localize);

            if (OctoCore.Instance.Development.Log && data)
                Debug.Log($"{name} subscribed on language written change");
        }

        void OnDestroy()
        {
            if (!OctoCore.Instance) return;

            if (localize != null)
            {
                OctoCore.Instance.Localization.UnsubscribeOnLanguageWrittenChange(localize);
                localize = null;

                if (OctoCore.Instance.Development.Log && data)
                    Debug.Log($"{name} unsubscribed on language written change");
            } 
        }

        public void Localize()
        {
            if (!data) return;

            string localizedText = OctoLocalization.GetLocalizedText(data);
            
            if (text)
            {
                text.text = localizedText;
            }
            else if (textMeshPro)
            {
                textMeshPro.text = localizedText;
            }
            else if (textMeshProUGUI)
            {
                textMeshProUGUI.text = localizedText;
                //LayoutRebuilder.ForceRebuildLayoutImmediate(textMeshProUGUI.rectTransform);
            }
        }
    }

}