Restore the database.

恢复数据库。

ColdMint.Traveler.csproj

@@ -11,5 +11,7 @@
   <ItemGroup>
     <PackageReference Include="JetBrains.Annotations" Version="2023.3.0" />
     <PackageReference Include="YamlDotNet" Version="15.1.6" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite.Core" Version="6.0.29" />
+    <PackageReference Include="SQLitePCLRaw.bundle_e_sqlite3" Version="2.1.8" />
   </ItemGroup>
 </Project>

scripts/Config.cs

@@ -138,12 +138,6 @@ public static class Config
     public const int HotBarSize = 9;
     
 
-    /// <summary>
-    /// <para>UserID</para>
-    /// <para>用户ID</para>
-    /// </summary>
-    public const string UserId = "DefaultUser";
-
     /// <summary>
     /// <para>Whether version isolation is enabled</para>
     /// <para>是否启用版本隔离</para>
@@ -322,17 +316,27 @@ public static class Config
         if (EnableVersionIsolation())
         {
             return Path.Join(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), CompanyName,
-                ProjectSettings.GetSetting("application/config/name").AsString(), UserId,
+                ProjectSettings.GetSetting("application/config/name").AsString(),
                 ProjectSettings.GetSetting("application/config/version").AsString());
         }
         else
         {
             return Path.Join(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), CompanyName,
-                ProjectSettings.GetSetting("application/config/name").AsString(), UserId,
+                ProjectSettings.GetSetting("application/config/name").AsString(),
                 DefaultVersionName);
         }
     }
 
+    /// <summary>
+    /// <para>GetDataBaseDirectory</para>
+    /// <para>获取数据库文件夹</para>
+    /// </summary>
+    /// <returns></returns>
+    public static string GetDataBaseDirectory()
+    {
+        return Path.Join(GetGameDataDirectory(), "Databases");
+    }
+
     /// <summary>
     /// <para>GetModDataDirectory</para>
     /// <para>获取模组文件夹</para>

scripts/database/DataBaseManager.cs

@@ -0,0 +1,48 @@
+using System;
+using System.IO;
+
+namespace ColdMint.scripts.database;
+
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+
+/// <summary>
+/// <para>Game database manager</para>
+/// <para>游戏数据库管理器</para>
+/// </summary>
+public class DataBaseManager
+{
+    private static ServiceProvider? _serviceProvider;
+
+    /// <summary>
+    /// <para>Initialize database</para>
+    /// <para>初始化数据库</para>
+    /// </summary>
+    public static void InitDataBases(string databasePath)
+    {
+        var serviceCollection = new ServiceCollection();
+        serviceCollection.AddDbContext<GameDbContext>(options =>
+            options.UseSqlite($"Data Source={Path.Join(databasePath, Config.SolutionName + ".db")}"));
+        _serviceProvider = serviceCollection.BuildServiceProvider();
+        var dataPackDbContext = GetRequiredService<GameDbContext>();
+        dataPackDbContext.Database.EnsureCreated();
+    }
+
+
+    /// <summary>
+    /// <para>Get database service</para>
+    /// <para>获取数据库服务</para>
+    /// </summary>
+    /// <typeparam name="T"></typeparam>
+    /// <returns></returns>
+    public static T GetRequiredService<T>() where T : notnull
+    {
+        if (_serviceProvider == null)
+        {
+            throw new NullReferenceException("service provider is null");
+        }
+
+        var scope = _serviceProvider.CreateScope();
+        return scope.ServiceProvider.GetRequiredService<T>();
+    }
+}

scripts/database/GameDbContext.cs

@@ -0,0 +1,40 @@
+using ColdMint.scripts.database.gameDbTables;
+using Microsoft.EntityFrameworkCore;
+
+namespace ColdMint.scripts.database;
+
+/// <summary>
+/// <para>Game database</para>
+/// <para>游戏数据库</para>
+/// </summary>
+public class GameDbContext(DbContextOptions<GameDbContext> options) : DbContext(options)
+{
+    public DbSet<ErrorRecord> ErrorRecords { get; set; }
+
+    /// <summary>
+    /// <para>Async add error record</para>
+    /// <para>异步添加错误信息</para>
+    /// </summary>
+    /// <param name="errorRecord"></param>
+    public async void AddOrUpdateErrorRecordAsync(ErrorRecord errorRecord)
+    {
+        if (errorRecord.Message == null)
+        {
+            return;
+        }
+
+        var oldErrorRecord = await ErrorRecords.FindAsync(errorRecord.Message);
+        if (oldErrorRecord == null)
+        {
+            ErrorRecords.Add(errorRecord);
+        }
+        else
+        {
+            oldErrorRecord.Count++;
+            oldErrorRecord.LastDateTime = errorRecord.LastDateTime;
+            ErrorRecords.Update(oldErrorRecord);
+        }
+
+        await SaveChangesAsync();
+    }
+}

scripts/database/gameDbTables/ErrorRecord.cs

@@ -0,0 +1,31 @@
+using System;
+using System.ComponentModel.DataAnnotations;
+
+namespace ColdMint.scripts.database.gameDbTables;
+
+/// <summary>
+/// <para>Error record</para>
+/// <para>错误记录</para>
+/// </summary>
+public class ErrorRecord
+{
+    /// <summary>
+    /// <para>Message</para>
+    /// <para>错误消息</para>
+    /// </summary>
+    [Key]
+    [MaxLength(255)]
+    public string? Message { get; set; }
+
+    /// <summary>
+    /// <para>Count</para>
+    /// <para>出现次数</para>
+    /// </summary>
+    public int Count { get; set; } = 1;
+
+    /// <summary>
+    /// <para>DateTime</para>
+    /// <para>时间</para>
+    /// </summary>
+    public DateTime LastDateTime { get; set; } = DateTime.Now;
+}

scripts/debug/LogCat.cs

@@ -64,6 +64,7 @@ public static class LogCat
         /// <para>日志收集器</para>
         /// </summary>
         public const string LogCollector = "LogCollector";
+
         /// <summary>
         /// <para>Mod Loader</para>
         /// <para>模组加载器</para>
@@ -237,6 +238,8 @@ public static class LogCat
             return;
         }
 
+        //If you need to upload logs, you can upload logs.
+        //如果需要上传日志，并且能够上传日志。
         if (LogCollector.CanUploadLog && upload)
         {
             var logData = new LogData

scripts/loader/uiLoader/SplashScreenLoader.cs

@@ -3,6 +3,7 @@ using System.Text;
 using System.Threading.Tasks;
 using ColdMint.scripts.camp;
 using ColdMint.scripts.contribute;
+using ColdMint.scripts.database;
 using ColdMint.scripts.deathInfo;
 using ColdMint.scripts.debug;
 using ColdMint.scripts.inventory;
@@ -96,6 +97,13 @@ public partial class SplashScreenLoader : UiLoaderTemplate
             Directory.CreateDirectory(dataPath);
         }
 
+        var databasePath = Config.GetDataBaseDirectory();
+        if (!Directory.Exists(databasePath))
+        {
+            Directory.CreateDirectory(databasePath);
+        }
+
+        DataBaseManager.InitDataBases(databasePath);
         //Registered camp
         //注册阵营
         var defaultCamp = new Camp(Config.CampId.Default)