From 5de3551ef37f37b5002d9ce32835ed5d0814018a Mon Sep 17 00:00:00 2001
From: Kei-Luna <touhousetsuna@gmail.com>
Date: Tue, 26 May 2026 07:47:49 +0900
Subject: [PATCH] DLCLogic_CheckOpenAct

---
 Common/Data/Excel/DlcActivityExcel.cs         |  21 ++++
 Common/Data/GameData.cs                       |   1 +
 .../Activity/DLCLogic_CheckOpenAct.cs         | 112 ++++++++++++++++++
 3 files changed, 134 insertions(+)
 create mode 100644 Common/Data/Excel/DlcActivityExcel.cs
 create mode 100644 GameServer/Server/CallGS/Handlers/Activity/DLCLogic_CheckOpenAct.cs

diff --git a/Common/Data/Excel/DlcActivityExcel.cs b/Common/Data/Excel/DlcActivityExcel.cs
new file mode 100644
index 0000000..8250cf4
--- /dev/null
+++ b/Common/Data/Excel/DlcActivityExcel.cs
@@ -0,0 +1,21 @@
+using Newtonsoft.Json;
+
+namespace MikuSB.Data.Excel;
+
+[ResourceEntity("dlc/dlc_activities.json")]
+public class DlcActivityExcel : ExcelResource
+{
+    [JsonProperty("ID")] public uint Id { get; set; }
+    [JsonProperty("StartTime")] public string StartTime { get; set; } = "";
+    [JsonProperty("EndTime")] public string EndTime { get; set; } = "";
+    [JsonProperty("EnterStartTime")] public string EnterStartTime { get; set; } = "";
+    [JsonProperty("CloseEndTime")] public string CloseEndTime { get; set; } = "";
+    [JsonProperty("Condition")] public string Condition { get; set; } = "";
+
+    public override uint GetId() => Id;
+
+    public override void Loaded()
+    {
+        GameData.DlcActivityData[Id] = this;
+    }
+}
diff --git a/Common/Data/GameData.cs b/Common/Data/GameData.cs
index 0f6ea08..52f6c93 100644
--- a/Common/Data/GameData.cs
+++ b/Common/Data/GameData.cs
@@ -59,6 +59,7 @@ public static class GameData
     public static Dictionary<uint, FishingFoodExcel> FishingFoodData { get; private set; } = [];
     public static Dictionary<uint, VirCaptureTowerExcel> VirCaptureTowerData { get; private set; } = [];
     public static Dictionary<uint, DreamCardActivityExcel> DreamCardActivityData { get; private set; } = [];
+    public static Dictionary<uint, DlcActivityExcel> DlcActivityData { get; private set; } = [];
 }
 
 public static class GameResourceTemplateId
diff --git a/GameServer/Server/CallGS/Handlers/Activity/DLCLogic_CheckOpenAct.cs b/GameServer/Server/CallGS/Handlers/Activity/DLCLogic_CheckOpenAct.cs
new file mode 100644
index 0000000..0e59d46
--- /dev/null
+++ b/GameServer/Server/CallGS/Handlers/Activity/DLCLogic_CheckOpenAct.cs
@@ -0,0 +1,112 @@
+using MikuSB.Data;
+using MikuSB.Data.Excel;
+using MikuSB.Database.Player;
+using MikuSB.GameServer.Game.Player;
+using MikuSB.Proto;
+using System.Globalization;
+using System.Text.Json.Nodes;
+
+namespace MikuSB.GameServer.Server.CallGS.Handlers.Activity;
+
+[CallGSApi("DLCLogic_CheckOpenAct")]
+public class DLCLogic_CheckOpenAct : ICallGSHandler
+{
+    private const uint GroupId = 15;
+    private const uint ActIdSid = 1;
+
+    public async Task Handle(Connection connection, string param, ushort seqNo)
+    {
+        var now = DateTime.Now;
+        var act = ResolveCurrent(GameData.DlcActivityData.Values, now);
+        if (act == null)
+        {
+            await CallGSRouter.SendScript(connection, "DLCLogic_CheckOpenAct", "{\"bOpen\":false}");
+            return;
+        }
+
+        var player = connection.Player!;
+        var sync = new NtfSyncPlayer();
+        SetAttr(player, ActIdSid, act.Id, sync);
+
+        var response = new JsonObject
+        {
+            ["bOpen"] = true,
+            ["nId"] = act.Id,
+            ["nStartTime"] = ToUnixSeconds(ParseConfigTime(act.EnterStartTime)),
+            ["nEndTime"] = ToUnixSeconds(ParseConfigTime(act.CloseEndTime))
+        };
+
+        await CallGSRouter.SendScript(connection, "DLCLogic_CheckOpenAct", response.ToJsonString(), sync);
+    }
+
+    private static DlcActivityExcel? ResolveCurrent(IEnumerable<DlcActivityExcel> configs, DateTime now)
+    {
+        var parsed = configs
+            .Select(x => new
+            {
+                Config = x,
+                Start = ParseConfigTime(x.EnterStartTime),
+                End = ParseConfigTime(x.CloseEndTime)
+            })
+            .Where(x => x.Start.HasValue && x.End.HasValue)
+            .OrderBy(x => x.Start)
+            .ToList();
+
+        var current = parsed.FirstOrDefault(x => x.Start <= now && now < x.End);
+        if (current != null)
+            return current.Config;
+
+        var latestStarted = parsed.LastOrDefault(x => x.Start <= now && x.End > x.Start);
+        return latestStarted?.Config;
+    }
+
+    private static DateTime? ParseConfigTime(string? raw)
+    {
+        if (string.IsNullOrWhiteSpace(raw))
+            return null;
+
+        var normalized = raw.Trim().Trim('[', ']');
+        if (normalized.Length != 12)
+            return null;
+
+        return DateTime.TryParseExact(
+            normalized,
+            "yyyyMMddHHmm",
+            CultureInfo.InvariantCulture,
+            DateTimeStyles.None,
+            out var value)
+            ? value
+            : null;
+    }
+
+    private static long ToUnixSeconds(DateTime? value)
+    {
+        return value.HasValue ? new DateTimeOffset(value.Value).ToUnixTimeSeconds() : 0L;
+    }
+
+    private static void SetAttr(PlayerInstance player, uint sid, uint value, NtfSyncPlayer sync)
+    {
+        var attr = GetOrCreateAttr(player, sid);
+        if (attr.Val != value)
+        {
+            attr.Val = value;
+            sync.Custom[player.ToPackedAttrKey(GroupId, sid)] = value;
+            sync.Custom[player.ToShiftedAttrKey(GroupId, sid)] = value;
+        }
+    }
+
+    private static PlayerAttr GetOrCreateAttr(PlayerInstance player, uint sid)
+    {
+        var attr = player.Data.Attrs.FirstOrDefault(x => x.Gid == GroupId && x.Sid == sid);
+        if (attr != null)
+            return attr;
+
+        attr = new PlayerAttr
+        {
+            Gid = GroupId,
+            Sid = sid
+        };
+        player.Data.Attrs.Add(attr);
+        return attr;
+    }
+}