ash storms just the facts

Content.Server/DeltaV/Weather/WeatherSchedulerComponent.cs

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+using Content.Shared.Destructible.Thresholds;
+using Content.Shared.Weather;
+using Robust.Shared.Prototypes;
+using Robust.Shared.Serialization;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom;
+
+namespace Content.Server.DeltaV.Weather;
+
+/// <summary>
+/// Makes weather randomly happen every so often.
+/// </summary>
+[RegisterComponent, Access(typeof(WeatherSchedulerSystem))]
+[AutoGenerateComponentPause]
+public sealed partial class WeatherSchedulerComponent : Component
+{
+    /// <summary>
+    /// Weather stages to schedule.
+    /// </summary>
+    [DataField(required: true)]
+    public List<WeatherStage> Stages = new();
+
+    /// <summary>
+    /// The index of <see cref="Stages"/> to use next, wraps back to the start.
+    /// </summary>
+    [DataField]
+    public int Stage;
+
+    /// <summary>
+    /// When to go to the next step of the schedule.
+    /// </summary>
+    [DataField(customTypeSerializer: typeof(TimeOffsetSerializer)), AutoPausedField]
+    public TimeSpan NextUpdate;
+}
+
+/// <summary>
+/// A stage in a weather schedule.
+/// </summary>
+[Serializable, DataDefinition]
+public partial struct WeatherStage
+{
+    /// <summary>
+    /// A range of how long the stage can last for, in seconds.
+    /// </summary>
+    [DataField(required: true)]
+    public MinMax Duration = new(0, 0);
+
+    /// <summary>
+    /// The weather prototype to add, or null for clear weather.
+    /// </summary>
+    [DataField]
+    public ProtoId<WeatherPrototype>? Weather;
+
+    /// <summary>
+    /// Alert message to send in chat for players on the map when it starts.
+    /// </summary>
+    [DataField]
+    public LocId? Message;
+}