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

[Serializable]
public class MultilangObject
{
    public MultilangElementJSON[] elements;
}
[Serializable]
public class MultilangElementJSON
{
    [SerializeField]
    public string marker;
    [SerializeField]
    public string text;
}

public class Multilang : MonoBehaviour {


    public TextAsset[] langPacks;
    public string objectTag = "MultiLang";
    public int langIndex = 0;
    public int langsCount = 0;
    private Dictionary<string, string> dictonary = new Dictionary<string, string>();
    private bool firstChange = false;

    void Awake () {
        langsCount = langPacks.Length;
        ChangeLang(langIndex);
    }

    public bool ChangeLang(int i)
    {
        if ((i!=langIndex || !firstChange) && i < langsCount){
            firstChange = true;
            string raw = langPacks[i].text;
            Debug.Log(raw);

            if (raw != "")
            {
                var _dict = ParseLang(raw);
                if (_dict != null)
                {
                    dictonary = _dict;
                    Debug.Log("[LANG] Lang changed frm:"+langIndex+" to:"+i);

                    langIndex = i;
                    return true;
                }
            }
        }
        return false;
    }

    public string GetTranslate(string marker)
    {
        string ret="";
        if (dictonary.Count == 0)
            Awake();
        if (!dictonary.ContainsKey(marker))
            Debug.LogAssertion(marker + " not found!!");
        else
            ret = dictonary[marker];
        return ret;
    }

    public Dictionary<string, string> ParseLang(string str) {
        Dictionary<string, string> ret = new Dictionary<string, string>();
        MultilangObject mo = JsonUtility.FromJson<MultilangObject>(str);
        if (mo == null)
            return null;
        foreach(MultilangElementJSON e in mo.elements)
        {
            Debug.Log(e.marker + ":" + e.text);
            dictonary.Add(e.marker, e.text);
        }
        return ret;
    }

}