fix deadline activity with iran timezone

src/modules/Elsa.Workflows.Core/Activities/Caspian/Deadline.cs

@@ -10,11 +10,13 @@ namespace Elsa.Workflows.Activities.Caspian;
 [Activity(
     Category = "Caspian",
     DisplayName = "Deadline",
-    Description = "Checks whether a configured deadline has expired."
+    Description = "Checks whether a configured deadline (UTC+03:30) has expired."
 )]
 [FlowNode("Valid", "Expired")]
 public class Deadline : Activity
 {
+    private static readonly TimeSpan IranOffset = TimeSpan.FromHours(3.5);
+
     [Input(
         Description = "Variable name used to store the start time of the deadline.",
         DefaultValue = "DeadlineStartedAt"
@@ -22,43 +24,62 @@ public class Deadline : Activity
     public Input<string> VariableName { get; set; } = new("DeadlineStartedAt");
 
     [Input(
-        Description = "The deadline duration (example: 48:00:00).",
+        Description = "Timeout duration in the format [d.]hh:mm:ss",
         DefaultValue = "48:00:00"
     )]
     public Input<TimeSpan> Timeout { get; set; } = new(TimeSpan.FromHours(48));
 
     protected override async ValueTask ExecuteAsync(ActivityExecutionContext context)
     {
-        var variableName = context.Get(VariableName);
+        var variableName = context.Get(VariableName)!;
         var timeout = context.Get(Timeout);
+        var iranNow = DateTimeOffset.UtcNow.ToOffset(IranOffset);
 
+        // 1. مقدار رو می‌گیریم
         var startedAtObject = context.GetVariable<object>(variableName);
 
-        if (startedAtObject == null)
+        // 2. با متد جدید پارس می‌کنیم که MinValue رو هم هندل می‌کنه
+        var startedTime = ParseDateTime(startedAtObject);
+
+        // 3. اگر نال بود یا سال 0001، یعنی دفعه اوله و باید مقداردهی بشه
+        if (startedAtObject == null || startedTime == DateTimeOffset.MinValue)
         {
-            context.SetVariable(variableName, DateTimeOffset.UtcNow);
-            await context.ScheduleOutcomesAsync("Valid");
+            context.SetVariable(variableName, iranNow);
+            await context.CompleteActivityWithOutcomesAsync("Valid");
             return;
         }
 
-        var startedTime = ParseDateTime(startedAtObject);
-        var elapsed = DateTimeOffset.UtcNow - startedTime;
+        // 4. محاسبه زمان سپری شده
+        var elapsed = iranNow - startedTime;
 
         if (elapsed > timeout)
-            await context.ScheduleOutcomesAsync("Expired");
+            await context.CompleteActivityWithOutcomesAsync("Expired");
         else
-            await context.ScheduleOutcomesAsync("Valid");
+            await context.CompleteActivityWithOutcomesAsync("Valid");
     }
 
-    private DateTimeOffset ParseDateTime(object value)
+    private DateTimeOffset ParseDateTime(object? value)
     {
-        return value switch
+        if (value == null) return DateTimeOffset.MinValue;
+
+        try
         {
-            DateTimeOffset dto => dto,
-            DateTime dt => new DateTimeOffset(dt),
-            JsonElement e when e.ValueKind == JsonValueKind.String => DateTimeOffset.Parse(e.GetString()!),
-            string s => DateTimeOffset.Parse(s),
-            _ => throw new InvalidCastException($"Cannot convert {value.GetType()} to DateTimeOffset")
-        };
+            var dt = value switch
+            {
+                DateTimeOffset dto => dto,
+                DateTime dateTime => new DateTimeOffset(dateTime, IranOffset),
+                JsonElement e when e.ValueKind == JsonValueKind.String =>
+                    DateTimeOffset.TryParse(e.GetString(), out var res) ? res : DateTimeOffset.MinValue,
+                string s => DateTimeOffset.TryParse(s, out var res) ? res : DateTimeOffset.MinValue,
+                _ => DateTimeOffset.MinValue
+            };
+
+            // اگر مقدار معتبر بود، آفست ایران رو بهش اعمال کن
+            return dt == DateTimeOffset.MinValue ? dt : dt.ToOffset(IranOffset);
+        }
+        catch
+        {
+            return DateTimeOffset.MinValue;
+        }
     }
 }