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

public static class CSVReader
{
    public static Dictionary<int, Dictionary<string, object>> Read(string filePath)
    {
        Dictionary<int, Dictionary<string, object>> dict = new Dictionary<int, Dictionary<string, object>>();
        TextAsset textData = Resources.Load<TextAsset>("CSV/" + filePath);

        using (StringReader reader = new StringReader(textData.text))
        {
            string[] headers = reader.ReadLine().Split(',');
            reader.ReadLine();  // Skip the second line with column descriptions

            int rowIndex = 0;
            string line;
            while ((line = reader.ReadLine()) != null)
            {
                string[] values = line.Split(',');
                Dictionary<string, object> entry = new Dictionary<string, object>();

                for (int i = 0; i < headers.Length; i++)
                {
                    string key = headers[i];
                    string prefix = key.Substring(0, 2);

                    if (values.Length > i)
                    {
                        string value = values[i];

                        switch (prefix)
                        {
                            case "n_":
                                entry.Add(key, int.Parse(value));
                                break;
                            case "l_":
                                entry.Add(key, System.Numerics.BigInteger.Parse(value));
                                break;
                            case "f_":
                                entry.Add(key, float.Parse(value));
                                break;
                            case "s_":
                            case "e_":
                                entry.Add(key, value);
                                break;
                            case "b_":
                                entry.Add(key, value == "1" ? true : false);
                                break;
                            default:
                                entry.Add(key, value);
                                break;
                        }
                    }
                    else
                    {
                        switch (prefix)
                        {
                            case "n_":
                                entry.Add(key, 0);
                                break;
                            case "l_":
                                entry.Add(key, System.Numerics.BigInteger.Zero);
                                break;
                            case "f_":
                                entry.Add(key, 0.0f);
                                break;
                            case "s_":
                            case "e_":
                                entry.Add(key, "");
                                break;
                            case "b_":
                                entry.Add(key, false);
                                break;
                            default:
                                entry.Add(key, "");
                                break;
                        }
                    }
                }

                dict.Add(rowIndex, entry);
                rowIndex++;
            }
        }

        return dict;
    }
}