[Core & Milky] Improve BotStranger and implement get_user_profile

Author: NoirHare

Lagrange.Core/Common/Entity/BotStranger.cs

@@ -1,6 +1,6 @@
 namespace Lagrange.Core.Common.Entity;
 
-public class BotStranger(long uin, string nickname, string uid, string personalSign, string remark, ulong level, BotGender gender, DateTime registrationTime, DateTime? birthday, ulong age, string qID) : BotContact
+public class BotStranger(long uin, string nickname, string uid, string personalSign, string remark, ulong level, BotGender gender, DateTime registrationTime, DateTime? birthday, ulong age, string qID, string country, string city, string? school) : BotContact
 {
     public override long Uin { get; } = uin;
 
@@ -26,6 +26,12 @@ public class BotStranger(long uin, string nickname, string uid, string personalS
 
     public long Source { get; init; }
 
+    public string Country { get; init; } = country;
+
+    public string City { get; init; } = city;
+
+    public string? School { get; init; } = school;
+
     internal BotStranger CloneWithSource(long source) => new(
         Uin,
         Nickname,
@@ -37,7 +43,10 @@ public class BotStranger(long uin, string nickname, string uid, string personalS
         RegistrationTime,
         Birthday,
         Age,
-        QID
+        QID,
+        Country,
+        City,
+        School
     )
     { Source = source };
 }

Lagrange.Core/Internal/Services/System/FetchStrangerService.cs

@@ -108,7 +108,10 @@ protected override ValueTask<FetchStrangerEventResp> Parse(ReadOnlyMemory<byte>
             DateTimeOffset.FromUnixTimeSeconds((long)numbers[20026]).DateTime,
             month != 0 && day != 0 ? new DateTime(year != 0 ? year : 1, month, day) : null,
             numbers[20037],
-            Encoding.UTF8.GetString(bytes[27394])
+            Encoding.UTF8.GetString(bytes[27394]),
+            Encoding.UTF8.GetString(bytes[20003]),
+            Encoding.UTF8.GetString(bytes[20004]),
+            bytes.TryGetValue(200021, out byte[]? value) ? Encoding.UTF8.GetString(value) : null
         )));
     }
 }

Lagrange.Milky/Api/Handler/System/GetUserProfileHandler.cs

@@ -0,0 +1,73 @@
+using System.Text.Json.Serialization;
+using Lagrange.Core;
+using Lagrange.Core.Common.Interface;
+
+namespace Lagrange.Milky.Api.Handler.System;
+
+[Api("get_user_profile")]
+public class GetUserProfileHandler(BotContext bot) : IApiHandler<GetUserProfileParameter, GetUserProfileResult>
+{
+    private readonly BotContext _bot = bot;
+
+    public async Task<GetUserProfileResult> HandleAsync(GetUserProfileParameter parameter, CancellationToken token)
+    {
+        var stranger = await _bot.FetchStranger(parameter.UserId);
+        return new GetUserProfileResult(
+            stranger.Nickname,
+            stranger.QID,
+            (int)stranger.Age,
+            stranger.Gender switch
+            {
+                Lagrange.Core.Common.BotGender.Male => "male",
+                Lagrange.Core.Common.BotGender.Female => "female",
+                _ => "unknown",
+            },
+            stranger.Remark,
+            stranger.PersonalSign,
+            (int)stranger.Level,
+            stranger.Country,
+            stranger.City,
+            stranger.School ?? string.Empty
+        );
+    }
+}
+
+public class GetUserProfileParameter(long userId)
+{
+    [JsonRequired]
+    [JsonPropertyName("user_id")]
+    public long UserId { get; init; } = userId;
+}
+
+public class GetUserProfileResult(string nickname, string qid, int age, string sex, string remark, string bio, int level, string country, string city, string school)
+{
+    [JsonPropertyName("nickname")]
+    public string Nickname { get; } = nickname;
+
+    [JsonPropertyName("qid")]
+    public string Qid { get; } = qid;
+
+    [JsonPropertyName("age")]
+    public int Age { get; } = age;
+
+    [JsonPropertyName("sex")]
+    public string Sex { get; } = sex;
+
+    [JsonPropertyName("remark")]
+    public string Remark { get; } = remark;
+
+    [JsonPropertyName("bio")]
+    public string Bio { get; } = bio;
+
+    [JsonPropertyName("level")]
+    public int Level { get; } = level;
+
+    [JsonPropertyName("country")]
+    public string Country { get; } = country;
+
+    [JsonPropertyName("city")]
+    public string City { get; } = city;
+
+    [JsonPropertyName("school")]
+    public string School { get; } = school;
+}

Lagrange.Milky/Utility/JsonUtility.cs

@@ -38,6 +38,9 @@ public static partial class JsonUtility
     [JsonSerializable(typeof(GetLoginInfoResult))]
     // get_impl_info
     [JsonSerializable(typeof(GetImplInfoResult))]
+    // get_user_profile
+    [JsonSerializable(typeof(GetUserProfileParameter))]
+    [JsonSerializable(typeof(GetUserProfileResult))]
     // get_friend_list
     [JsonSerializable(typeof(GetFriendListParameter))]
     [JsonSerializable(typeof(GetFriendListResult))]