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OpenHours

Build Status Package Version

OpenHours is an Elixir package aimed to help with time calculations using business hours.

It's inspired by the amazing ruby gem biz developed by Zendesk.

Installation

The package can be installed by adding open_hours to your list of dependencies in mix.exs:

def deps do
  [
    {:open_hours, "~> 0.1.0"}
  ]
end

Usage

In order to use OpenHours functions you first need a Schedule config:

schedule = %OpenHours.Schedule{
  hours: %{
    mon: [{~T[09:00:00], ~T[14:00:00]}, {~T[15:00:00], ~T[20:00:00]}],
    tue: [{~T[09:00:00], ~T[14:00:00]}, {~T[15:00:00], ~T[20:00:00]}],
    wed: [{~T[09:00:00], ~T[14:00:00]}, {~T[15:00:00], ~T[20:00:00]}],
    thu: [{~T[09:00:00], ~T[14:00:00]}, {~T[15:00:00], ~T[20:00:00]}]
  },
  holidays: [
    ~D[2019-01-14]
  ],
  shifts: [
    {~D[2019-01-15], [{~T[10:00:00], ~T[15:00:00]}]}
  ],
  breaks: [
    {~D[2019-01-16], [{~T[17:00:00], ~T[20:00:00]}]}
  ],
  time_zone: "Europe/Madrid"
}

There are five settings to configure in a schedule:

  • hours: Map containing all the open hours intervals for a regular week.
  • holidays: List of dates in which the business is closed.
  • shifts: Special dates where the business has a different hour schedule.
  • breaks: Special dates where the business has interruption intervals.
  • time_zone: Time zone of the schedule.

OpenHours offers two main functionalities.

Checking a DateTime is within open hours

> at = DateTime.from_naive!(~N[2019-01-15 14:00:00], "Europe/Madrid", Tzdata.TimeZoneDatabase)
#DateTime<2019-01-15 14:00:00+01:00 CET Europe/Madrid>

> OpenHours.Schedule.in_hours?(schedule, at)
true

> at = DateTime.from_naive!(~N[2019-01-14 12:00:00], "Europe/Madrid", Tzdata.TimeZoneDatabase)
#DateTime<2019-01-14 12:00:00+01:00 CET Europe/Madrid>

> OpenHours.Schedule.in_hours?(schedule, at)
false

Calculate all TimeSlot between two dates

> starts_at = DateTime.from_naive!(~N[2019-01-14 12:00:00], "Europe/Madrid", Tzdata.TimeZoneDatabase)
#DateTime<2019-01-14 12:00:00+01:00 CET Europe/Madrid>

> ends_at = DateTime.from_naive!(~N[2019-01-16 22:00:00], "Europe/Madrid", Tzdata.TimeZoneDatabase)
#DateTime<2019-01-16 22:00:00+01:00 CET Europe/Madrid>

> OpenHours.TimeSlot.between(schedule, starts_at, ends_at)
[
  %OpenHours.TimeSlot{
    ends_at: #DateTime<2019-01-15 15:00:00+01:00 CET Europe/Madrid>,
    starts_at: #DateTime<2019-01-15 10:00:00+01:00 CET Europe/Madrid>
  },
  %OpenHours.TimeSlot{
    ends_at: #DateTime<2019-01-16 14:00:00+01:00 CET Europe/Madrid>,
    starts_at: #DateTime<2019-01-16 09:00:00+01:00 CET Europe/Madrid>
  },
  %OpenHours.TimeSlot{
    ends_at: #DateTime<2019-01-16 17:00:00+01:00 CET Europe/Madrid>,
    starts_at: #DateTime<2019-01-16 15:00:00+01:00 CET Europe/Madrid>
  }
]

License

This software is licensed under the MIT license.

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