Class: IceCube::Schedule

Inherits:
Object
  • Object
show all
Extended by:
Deprecated
Defined in:
lib/ice_cube/schedule.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Deprecated

deprecated, deprecated_alias

Constructor Details

#initialize(start_time = nil, options = {}) {|_self| ... } ⇒ Schedule

Create a new schedule

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/ice_cube/schedule.rb', line 18

def initialize(start_time = nil, options = {})
  self.start_time = start_time || TimeUtil.now
  self.end_time = self.start_time + options[:duration] if options[:duration]
  self.end_time = options[:end_time] if options[:end_time]
  @all_recurrence_rules = []
  @all_exception_rules = []
  yield self if block_given?
end

Instance Attribute Details

#end_time ⇒ Object

Get the end time



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# File 'lib/ice_cube/schedule.rb', line 14

def end_time
  @end_time
end

#start_time ⇒ Object

Get the start time



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# File 'lib/ice_cube/schedule.rb', line 10

def start_time
  @start_time
end

Class Method Details

.dump(schedule) ⇒ Object 



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# File 'lib/ice_cube/schedule.rb', line 395

def self.dump(schedule)
  schedule.to_yaml
end

.from_hash(original_hash, options = {}) ⇒ Object

Load the schedule from a hash



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# File 'lib/ice_cube/schedule.rb', line 364

def self.from_hash(original_hash, options = {})
  original_hash[:start_date] = options[:start_date_override] if options[:start_date_override]
  # And then deserialize
  data = IceCube::FlexibleHash.new(original_hash)
  schedule = IceCube::Schedule.new TimeUtil.deserialize_time(data[:start_date])
  schedule.end_time = schedule.start_time + data[:duration] if data[:duration]
  schedule.end_time = TimeUtil.deserialize_time(data[:end_time]) if data[:end_time]
  data[:rrules] && data[:rrules].each { |h| schedule.rrule(IceCube::Rule.from_hash(h)) }
  data[:exrules] && data[:exrules].each { |h| schedule.exrule(IceCube::Rule.from_hash(h)) }
  data[:rtimes] && data[:rtimes].each do |t|
    schedule.add_recurrence_time TimeUtil.deserialize_time(t)
  end
  data[:extimes] && data[:extimes].each do |t|
    schedule.add_exception_time TimeUtil.deserialize_time(t)
  end
  # Also serialize old format for backward compat
  data[:rdates] && data[:rdates].each do |t|
    schedule.add_recurrence_time TimeUtil.deserialize_time(t)
  end
  data[:exdates] && data[:exdates].each do |t|
    schedule.add_exception_time TimeUtil.deserialize_time(t)
  end
  schedule
end

.from_yaml(yaml, options = {}) ⇒ Object

Load the schedule from yaml



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# File 'lib/ice_cube/schedule.rb', line 339

def self.from_yaml(yaml, options = {})
  hash = YAML::load(yaml)
  if match = yaml.match(/start_date: .+((?:-|\+)\d{2}:\d{2})$/)
    TimeUtil.restore_deserialized_offset(hash[:start_date], match[1])
  end
  from_hash hash, options
end

.load(yaml) ⇒ Object 



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# File 'lib/ice_cube/schedule.rb', line 399

def self.load(yaml)
  from_yaml(yaml) unless yaml.nil? || yaml.empty?
end

Instance Method Details

#add_exception_rule(rule) ⇒ Object Also known as: exrule

Add an exception rule to the schedule



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# File 'lib/ice_cube/schedule.rb', line 82

def add_exception_rule(rule)
  @all_exception_rules << rule unless @all_exception_rules.include?(rule)
end

#add_exception_time(time) ⇒ Object Also known as: extime

Add an exception time to the schedule



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# File 'lib/ice_cube/schedule.rb', line 59

def add_exception_time(time)
  return nil if time.nil?
  rule = SingleOccurrenceRule.new(time)
  add_exception_rule rule
  time
end

#add_recurrence_rule(rule) ⇒ Object Also known as: rrule

Add a recurrence rule to the schedule



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# File 'lib/ice_cube/schedule.rb', line 70

def add_recurrence_rule(rule)
  @all_recurrence_rules << rule unless @all_recurrence_rules.include?(rule)
end

#add_recurrence_time(time) ⇒ Object Also known as: rtime

Add a recurrence time to the schedule



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# File 'lib/ice_cube/schedule.rb', line 48

def add_recurrence_time(time)
  return nil if time.nil?
  rule = SingleOccurrenceRule.new(time)
  add_recurrence_rule rule
  time
end

#all_occurrences ⇒ Object

All of the occurrences



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# File 'lib/ice_cube/schedule.rb', line 152

def all_occurrences
  require_terminating_rules
  enumerate_occurrences(start_time).to_a
end

#all_occurrences_enumerator ⇒ Object

Emit an enumerator based on the start time



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# File 'lib/ice_cube/schedule.rb', line 158

def all_occurrences_enumerator
  enumerate_occurrences(start_time)
end

#conflicts_with?(other_schedule, closing_time = nil) ⇒ Boolean

Determine if this schedule conflicts with another schedule

Parameters:

  • other_schedule (IceCube::Schedule) —

    • The schedule to compare to

  • closing_time (Time) (defaults to: nil) —

    • the last time to consider

Returns:

  • (Boolean) —

    whether or not the schedules conflict at all



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# File 'lib/ice_cube/schedule.rb', line 255

def conflicts_with?(other_schedule, closing_time = nil)
  closing_time = TimeUtil.ensure_time closing_time
  unless terminating? || other_schedule.terminating? || closing_time
    raise ArgumentError, "One or both schedules must be terminating to use #conflicts_with?"
  end
  # Pick the terminating schedule, and other schedule
  # No need to reverse if terminating? or there is a closing time
  terminating_schedule = self
  unless terminating? || closing_time
    terminating_schedule, other_schedule = other_schedule, terminating_schedule
  end
  # Go through each occurrence of the terminating schedule and determine
  # if the other occurs at that time
  #
  last_time = nil
  terminating_schedule.each_occurrence do |time|
    if closing_time && time > closing_time
      last_time = closing_time
      break
    end
    last_time = time
    return true if other_schedule.occurring_at?(time)
  end
  # Due to durations, we need to walk up to the end time, and verify in the
  # other direction
  if last_time
    last_time += terminating_schedule.duration
    other_schedule.each_occurrence do |time|
      break if time > last_time
      return true if terminating_schedule.occurring_at?(time)
    end
  end
  # No conflict, return false
  false
end

#duration ⇒ Object 



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# File 'lib/ice_cube/schedule.rb', line 39

def duration
  end_time ? end_time - start_time : 0
end

#duration=(seconds) ⇒ Object 



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# File 'lib/ice_cube/schedule.rb', line 43

def duration=(seconds)
  @end_time = start_time + seconds
end

#each_occurrence(&block) ⇒ Object

Iterate forever



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# File 'lib/ice_cube/schedule.rb', line 163

def each_occurrence(&block)
  enumerate_occurrences(start_time, &block).to_a
  self
end

#exception_rules ⇒ Object Also known as: exrules

Get the exception rules



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# File 'lib/ice_cube/schedule.rb', line 100

def exception_rules
  @all_exception_rules.reject { |r| r.is_a?(SingleOccurrenceRule) }
end

#exception_times ⇒ Object Also known as: extimes

Get the exception times that are on the schedule



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# File 'lib/ice_cube/schedule.rb', line 126

def exception_times
  @all_exception_rules.select { |r| r.is_a?(SingleOccurrenceRule) }.map(&:time)
end

#first(n = nil) ⇒ Object

Get the first n occurrences, or the first occurrence if n is skipped



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# File 'lib/ice_cube/schedule.rb', line 297

def first(n = nil)
  occurrences = enumerate_occurrences(start_time).take(n || 1)
  n.nil? ? occurrences.first : occurrences
end

#last(n = nil) ⇒ Object

Get the final n occurrences of a terminating schedule or the final one if no n is given



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# File 'lib/ice_cube/schedule.rb', line 304

def last(n = nil)
  require_terminating_rules
  occurrences = enumerate_occurrences(start_time).to_a
  n.nil? ? occurrences.last : occurrences[-n..-1]
end

#next_occurrence(from = nil) ⇒ Object

The next occurrence after now (overridable)



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# File 'lib/ice_cube/schedule.rb', line 175

def next_occurrence(from = nil)
  from ||= TimeUtil.now(@start_time)
  enumerate_occurrences(from + 1, nil).next()
end

#next_occurrences(num, from = nil) ⇒ Object

The next n occurrences after now



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# File 'lib/ice_cube/schedule.rb', line 169

def next_occurrences(num, from = nil)
  from ||= TimeUtil.now(@start_time)
  enumerate_occurrences(from + 1, nil).take(num)
end

#occurrences(closing_time) ⇒ Object

Get all of the occurrences from the start_time up until a given Time



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# File 'lib/ice_cube/schedule.rb', line 147

def occurrences(closing_time)
  enumerate_occurrences(start_time, closing_time).to_a
end

#occurrences_between(begin_time, closing_time) ⇒ Object

Occurrences between two times



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# File 'lib/ice_cube/schedule.rb', line 207

def occurrences_between(begin_time, closing_time)
  enumerate_occurrences(begin_time, closing_time).to_a
end

#occurring_at?(time) ⇒ Boolean

Determine if the schedule is occurring at a given time

Returns:

  • (Boolean) 


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# File 'lib/ice_cube/schedule.rb', line 242

def occurring_at?(time)
  if duration > 0
    return false if exception_time?(time)
    occurs_between?(time - duration + 1, time)
  else
    occurs_at?(time)
  end
end

#occurring_between?(opening_time, closing_time) ⇒ Boolean

Return a boolean indicating if an occurrence is occurring between two times, inclusive of its duration. This counts zero-length occurrences that intersect the start of the range and within the range, but not occurrences at the end of the range since none of their duration intersects the range.

Returns:

  • (Boolean) 


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# File 'lib/ice_cube/schedule.rb', line 227

def occurring_between?(opening_time, closing_time)
  opening_time = opening_time - duration
  closing_time = closing_time - 1 if duration > 0
  occurs_between?(opening_time, closing_time)
end

#occurs_at?(time) ⇒ Boolean

Determine if the schedule occurs at a specific time

Returns:

  • (Boolean) 


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# File 'lib/ice_cube/schedule.rb', line 292

def occurs_at?(time)
  occurs_between?(time, time)
end

#occurs_between?(begin_time, closing_time) ⇒ Boolean

Return a boolean indicating if an occurrence falls between two times

Returns:

  • (Boolean) 


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# File 'lib/ice_cube/schedule.rb', line 212

def occurs_between?(begin_time, closing_time)
  begin 
    enumerate_occurrences(begin_time, closing_time).next()
    true
  rescue StopIteration
    false
  end

end

#occurs_on?(date) ⇒ Boolean

Return a boolean indicating if an occurrence falls on a certain date

Returns:

  • (Boolean) 


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# File 'lib/ice_cube/schedule.rb', line 234

def occurs_on?(date)
  date = TimeUtil.ensure_date date
  begin_time = TimeUtil.beginning_of_date(date, start_time)
  closing_time = TimeUtil.end_of_date(date, start_time)
  occurs_between?(begin_time, closing_time)
end

#previous_occurrence(from) ⇒ Object

The previous occurrence from a given time



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# File 'lib/ice_cube/schedule.rb', line 181

def previous_occurrence(from)
  return nil if from <= start_time
  enumerate_occurrences(start_time, from - 1).to_a.last
end

#previous_occurrences(num, from) ⇒ Object

The previous n occurrences before a given time



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# File 'lib/ice_cube/schedule.rb', line 187

def previous_occurrences(num, from)
  return [] if from <= start_time
  a = enumerate_occurrences(start_time, from - 1).to_a
  a.size > num ? a[-1*num,a.size] : a
end

#recurrence_rules ⇒ Object Also known as: rrules

Get the recurrence rules



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# File 'lib/ice_cube/schedule.rb', line 94

def recurrence_rules
  @all_recurrence_rules.reject { |r| r.is_a?(SingleOccurrenceRule) }
end

#recurrence_times ⇒ Object Also known as: rtimes

Get the recurrence times that are on the schedule



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# File 'lib/ice_cube/schedule.rb', line 106

def recurrence_times
  @all_recurrence_rules.select { |r| r.is_a?(SingleOccurrenceRule) }.map(&:time)
end

#remaining_occurrences(from = nil) ⇒ Object

The remaining occurrences (same requirements as all_occurrences)



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# File 'lib/ice_cube/schedule.rb', line 194

def remaining_occurrences(from = nil)
  require_terminating_rules
  from ||= TimeUtil.now(@start_time)
  enumerate_occurrences(from).to_a
end

#remaining_occurrences_enumerator(from = nil) ⇒ Object

Returns an enumerator for all remaining occurrences



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# File 'lib/ice_cube/schedule.rb', line 201

def remaining_occurrences_enumerator(from = nil)
  from ||= TimeUtil.now(@start_time)
  enumerate_occurrences(from)
end

#remove_exception_rule(rule) ⇒ Object

Remove an exception rule



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# File 'lib/ice_cube/schedule.rb', line 88

def remove_exception_rule(rule)
  res = @all_exception_rules.delete(rule)
  res.nil? ? [] : [res]
end

#remove_exception_time(time) ⇒ Object Also known as: remove_extime

Remove an exception time



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# File 'lib/ice_cube/schedule.rb', line 134

def remove_exception_time(time)
  found = false
  @all_exception_rules.delete_if do |rule|
    found = true if rule.is_a?(SingleOccurrenceRule) && rule.time == time
  end
  time if found
end

#remove_recurrence_rule(rule) ⇒ Object

Remove a recurrence rule



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# File 'lib/ice_cube/schedule.rb', line 76

def remove_recurrence_rule(rule)
  res = @all_recurrence_rules.delete(rule)
  res.nil? ? [] : [res]
end

#remove_recurrence_time(time) ⇒ Object Also known as: remove_rtime

Remove a recurrence time



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# File 'lib/ice_cube/schedule.rb', line 114

def remove_recurrence_time(time)
  found = false
  @all_recurrence_rules.delete_if do |rule|
    found = true if rule.is_a?(SingleOccurrenceRule) && rule.time == time
  end
  time if found
end

#terminating? ⇒ Boolean

Determine if the schedule will end

Returns:

  • (Boolean) —

    true if ending, false if repeating forever



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# File 'lib/ice_cube/schedule.rb', line 391

def terminating?
  recurrence_rules.empty? || recurrence_rules.all?(&:terminating?)
end

#to_hash ⇒ Object

Convert the schedule to a hash



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# File 'lib/ice_cube/schedule.rb', line 348

def to_hash
  data = {}
  data[:start_date] = TimeUtil.serialize_time(start_time)
  data[:end_time] = TimeUtil.serialize_time(end_time) if end_time
  data[:rrules] = recurrence_rules.map(&:to_hash)
  data[:exrules] = exception_rules.map(&:to_hash)
  data[:rtimes] = recurrence_times.map do |rt|
    TimeUtil.serialize_time(rt)
  end
  data[:extimes] = exception_times.map do |et|
    TimeUtil.serialize_time(et)
  end
  data
end

#to_ical(force_utc = false) ⇒ Object

Serialize this schedule to_ical



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# File 'lib/ice_cube/schedule.rb', line 322

def to_ical(force_utc = false)
  pieces = []
  pieces << "DTSTART#{IcalBuilder.ical_format(start_time, force_utc)}"
  pieces.concat recurrence_rules.map { |r| "RRULE:#{r.to_ical}" }
  pieces.concat exception_rules.map  { |r| "EXRULE:#{r.to_ical}" }
  pieces.concat recurrence_times_without_start_time.map { |t| "RDATE#{IcalBuilder.ical_format(t, force_utc)}" }
  pieces.concat exception_times.map  { |t| "EXDATE#{IcalBuilder.ical_format(t, force_utc)}" }
  pieces << "DTEND#{IcalBuilder.ical_format(end_time, force_utc)}" if end_time
  pieces.join("\n")
end

#to_s ⇒ Object

String serialization



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# File 'lib/ice_cube/schedule.rb', line 311

def to_s
  pieces = []
  rd = recurrence_times_with_start_time - extimes
  pieces.concat rd.sort.map { |t| t.strftime(IceCube.to_s_time_format) }
  pieces.concat rrules.map  { |t| t.to_s }
  pieces.concat exrules.map { |t| "not #{t.to_s}" }
  pieces.concat extimes.sort.map { |t| "not on #{t.strftime(IceCube.to_s_time_format)}" }
  pieces.join(' / ')
end

#to_yaml(*args) ⇒ Object

Convert the schedule to yaml



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# File 'lib/ice_cube/schedule.rb', line 334

def to_yaml(*args)
  YAML::dump(to_hash, *args)
end