Type Alias WidgetAction

WidgetAction:
    | { minute: number; type: "setMinute" }
    | { date: Date; type: "setDate" }
    | { lng: number; type: "setLng" }
    | { shadows: boolean; type: "setShadows" }
    | { enabled: boolean; type: "setEnabled" }

A state transition consumed by reduce, discriminated on type: set the solar minute, swap the day (keeping the solar minute-of-day), re-reference the solar time to a new longitude, or toggle shadows / the master enable.