using System;
using System.Collections.Generic;
using System.IO;
using Script.UI;
using UnityEngine;
using ZXL.ID;

namespace Script
{
    public class TitleInfo
    {
        public string title;
        public string subject;
    }

    public class FileManager : SingleManager<FileManager>
    {
        private string dataPath;
        private string titlePath;

        private TitleInfo titleInfo;
        public TitleInfo GetTitle => titleInfo;

        // cache
        private string cachePath;

        public FileManager()
        {
            // data
            dataPath = Application.streamingAssetsPath + $"/TXT/data{GenerateGlobalID.GenerateIntID()}.txt";
            if (!File.Exists(dataPath))
            {
                var fileStream = File.Create(dataPath);
                fileStream.Dispose();
            }

            // title
            titlePath = Application.streamingAssetsPath + "/title.txt";
            var text = File.ReadAllLines(titlePath);
            titleInfo = new TitleInfo() { title = text[0], subject = text[1] };

            // cache
            cachePath = Application.streamingAssetsPath + "/Cache/cache.txt";
            if (!File.Exists(cachePath))
            {
                var fileStream = File.Create(cachePath);
                fileStream.Dispose();
            }

            // cacheBPath = Application.streamingAssetsPath + "/Cache/cache.txt";
            // if (!File.Exists(cacheBPath))
            // {
            //     var fileStream = File.Create(cacheBPath);
            //     fileStream.Dispose();
            // }
            //
            // cacheCPath = Application.streamingAssetsPath + "/Cache/cache.txt";
            // if (!File.Exists(cacheCPath))
            // {
            //     var fileStream = File.Create(cacheCPath);
            //     fileStream.Dispose();
            // }
            //
            // cacheDPath = Application.streamingAssetsPath + "/Cache/cache.txt";
            // if (!File.Exists(cacheDPath))
            // {
            //     var fileStream = File.Create(cacheDPath);
            //     fileStream.Dispose();
            // }

            Dictionary<QuestionBankType, List<string>> dic = new Dictionary<QuestionBankType, List<string>>();
            var cache = File.ReadAllLines(cachePath);
            foreach (var s in cache)
            {
                var strings = s.Split(":");
                var questionBankType = Enum.Parse<QuestionBankType>(strings[0]);
                if (dic.TryGetValue(questionBankType, out var list))
                    list.Add(strings[1]);
                else
                    dic.Add(questionBankType, new List<string>() { strings[1] });
            }

            GlobalManager.Instance.questionIDs = dic;
        }

        public void SavePlayerData(string content)
        {
            var text = File.ReadAllText(dataPath);
            File.WriteAllText(dataPath, text + "\n" + content);
        }

        /// <summary>
        /// 保存已抽题的题目id
        /// </summary>
        /// <param name="questionBankType"></param>
        /// <param name="content"></param>
        public void SaveAnsweredData(QuestionBankType questionBankType, string content)
        {
            var text = File.ReadAllText(cachePath);
            var s = questionBankType.ToString() + ":" + content;
            if (text == "")
                File.WriteAllText(cachePath, s);
            else
                File.WriteAllText(cachePath, text + "\n" + s);
        }

        public void ClearAnsweredData()
        {
            File.WriteAllText(cachePath, "");
        }

        public enum QuestionBankType
        {
            A,
            B,
            C,
            D
        }
    }
}