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


namespace PrizeSystem
{
    public static class PrizeSerializer
    {
        const string CHARACTERS_PRIZES = "CharPrizes.prizRR";
        static string FILE_PATH => Path.Combine(Application.persistentDataPath, CHARACTERS_PRIZES);
        static int CharactersAmount => GameManager.instance.botsAmount;

        public static List<Prize> LoadPrizes()
        {
            if (!File.Exists(FILE_PATH))
            {
                Debug.Log("Не записаны призы беру дефолт");
                return GetDefaultPrizes();
            }

            string fileString = File.ReadAllText(FILE_PATH);
            return DeserializePrizes(fileString);
        }

        /// <summary>
        /// Сериализует и записывает в файл
        /// </summary>
        /// <param name="prizes"></param>
        public static void SavePrizes(List<Prize> prizes)
        {
            string serialized = SerializePrizes(prizes);
            Debug.Log($"serialized: {serialized}");
            File.WriteAllText(FILE_PATH, serialized);
        }


        public static string SerializePrizes(List<Prize> prizes)
        {
            StringBuilder sb = new();

            for (int i = 0; i < CharactersAmount; i++)
            {
                sb.Append(prizes[i].Body);
                string endOfLine = i < CharactersAmount - 1 ? "\n" : "";
                sb.Append(endOfLine);
            }
            string result = sb.ToString();
            return result;
        }

        /// <summary>
        /// Преобразовать сериализованную строку в список призов
        /// </summary>
        public static List<Prize> DeserializePrizes(string serialized)
        {
            List<Prize> prizes = new();
            
            string[] lines = serialized.Split('\n');
            if (lines.Length != CharactersAmount)
            {
                return GetDefaultPrizes();
            }

            foreach (string line in lines)
            {
                if (line == "None")
                {
                    prizes.Add(PrizeUtils.CreatePrize());
                }
                else if (line.StartsWith("VitrinaBox:"))
                {
                    string stripped = line.Substring("VitrinaBox:".Length);
                    int[] boxes = stripped.Split(",").Select(int.Parse).ToArray();
                    prizes.Add(PrizeUtils.CreatePrize(boxes));
                }
                else if (line.StartsWith("Qr:"))
                {
                    string stripped = line.Substring("Qr:".Length);
                    string[] entries = stripped.Split(',');
                    
                    int rank = int.Parse(entries[0]);
                    string text = entries[1];

                    prizes.Add(PrizeUtils.CreatePrize(rank,text));
                }
                else
                {//считаемый приз
                    string[] entries = line.Split(":");
                    CountablePrizeType Type = (CountablePrizeType)Enum.Parse(typeof(CountablePrizeType), entries[0]);
                    int amount = int.Parse(entries[1]);

                    prizes.Add(PrizeUtils.CreatePrize(Type, amount));
                }
            }

            return prizes;
        }


        //делает список пустых призов, последний индекс - приз с хоппера
        public static List<Prize> GetDefaultPrizes()
        {
            List<Prize> prizes = new();

            for (int i = 0; i < CharactersAmount - 1; i++)
            {
                prizes.Add(PrizeUtils.CreatePrize());
            }
            prizes.Add(PrizeUtils.CreatePrize(3, "5000 руб."));

            SerializePrizes(prizes);

            return prizes;
        }
    }

}