char16t / flow

Automatically reschedule events in the flow depending on the constraints at different time intervals

flow for Assistant

flow allows you to automatically reschedule events in the flow depending on the constraints at different time intervals. An alternative experimental implementation of the Assistant core.

Build, test and install

Scala 2.12.x, 2.13.x and 3.x are supported.

Build:

sbt +compile

Test:

sbt +test

Install:

sbt +publishLocal

Add to your build.sbt:

libraryDependencies += "com.manenkov" %% "flow" % "0.1.0-RC4"

Usage

Suppose there is an ordered sequence of events with the date and time for which they are scheduled. At the same time, there are restrictions:

• No more than 2 events per day
• No more than 4 events per month
• It is preferable to keep the events in the original order
• If an event cannot be scheduled on the specified date, it must be scheduled as soon as possible

(Supported restrictions is PerDay, PerWeek, PerMonth, PerYear)

It is necessary to reorganize the sequence so that the sequence meets the requirements.

Defining the sequence:

val original = Seq(
  Event(name = "CA1", isPin = true,  due = LocalDateTime.of(2022, 1, 1, 0, 1)),
  Event(name = "CA2", isPin = true,  due = LocalDateTime.of(2022, 1, 1, 1, 1)),
  Event(name = "CA3", isPin = true,  due = LocalDateTime.of(2022, 1, 1, 2, 1)),
  Event(name = "CB1", isPin = false, due = LocalDateTime.of(2022, 1, 2, 0, 1)),
  Event(name = "CB2", isPin = false, due = LocalDateTime.of(2022, 1, 2, 1, 1)),
  Event(name = "CB3", isPin = true,  due = LocalDateTime.of(2022, 1, 2, 2, 1)),
  Event(name = "CC1", isPin = false, due = LocalDateTime.of(2022, 1, 3, 0, 1)),
  Event(name = "CC2", isPin = false, due = LocalDateTime.of(2022, 1, 3, 1, 1)),
  Event(name = "CC3", isPin = false, due = LocalDateTime.of(2022, 1, 3, 2, 1)),
  Event(name = "CC4", isPin = false, due = LocalDateTime.of(2022, 3, 3, 2, 1)),
)

Apply:

val stage1 = Flow.flow(original)(PerDay(2))
val stage2 = Flow.flow(stage1)(PerMonth(4))

Get result:

stage2.toString
//List(
//  Event(CA1,true,2022-01-01T00:01), 
//  Event(CA2,true,2022-01-01T01:01), 
//  Event(CA3,true,2022-01-01T02:01), 
//  Event(CB3,true,2022-01-02T02:01), 
//  Event(CB1,false,2022-02-02T00:01),
//  Event(CC1,false,2022-02-03T00:01),
//  Event(CB2,false,2022-02-03T01:01),
//  Event(CC2,false,2022-02-04T01:01),
//  Event(CC3,false,2022-03-04T02:01),
//  Event(CC4,false,2022-03-03T02:01)
//)