using System.Collections.Generic;
using System.IO;
using System.Linq;
using UnityEngine;

namespace Data
{
    public class Dialog
    {
        public readonly int Index;
        public readonly string Content;
        public readonly string Type;
        public readonly string Animation;
        public readonly string Character;
        public readonly string DialogEvent;

        public Dialog(int index, string content, string type, string animation, string character, string dialogEvent)
        {
            Index = index;
            Content = content;
            Type = type;
            Animation = animation;
            Character = character;
            DialogEvent = dialogEvent;
        }
    }

    public class DialogManager : MonoBehaviour
    {
        public string filePath = "Assets/Dialog/DialogData.csv";
        private readonly List<Dialog> _dialog  = new();

        private static DialogManager _instance;
        public static DialogManager Instance
        {
            get
            {
                if (_instance)
                    return _instance;
                _instance = FindObjectOfType<DialogManager>() ??
                            new GameObject("DialogData").AddComponent<DialogManager>();
                return _instance;
            }
        }
        private void Awake()
        {
            if (_instance != null && _instance != this)
            {
                Destroy(gameObject);
            }
            else
            {
                LoadCsv(filePath);
                _instance = this;
            }
        }
        
        private void LoadCsv(string path)
        {
            var lines = File.ReadAllLines(path);
            print(lines);
            for (var i = 1; i < lines.Length; i++)
            {
                var values = lines[i].Split(',');
            
                var dialog = new Dialog(
                    int.Parse(values[0]),
                    values[1],
                    values[2],
                    values[3],
                    values[4],
                    values[5]
                );
            
                _dialog.Add(dialog);
            }
        }
    
        public Dialog GetDialogByIndex(int index)
        {
            foreach (var dialog in _dialog.Where(dialogue => dialogue.Index == index))
            {
                return dialog;
            }

            Debug.LogWarning($"Dialog with index {index} not found.");
            return null;
        }
    }
}