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@ -16,29 +16,27 @@ import Foundation
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* [Visit our github page](https://github.com/MatthewYork/DateTools#time-periods) for more information. |
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*/ |
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public protocol TimePeriodProtocol { |
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// MARK: - Variables |
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/** |
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* The start date for a TimePeriod representing the starting boundary of the time period |
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*/ |
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var beginning: Date? {get set} |
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var beginning: Date? { get set } |
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/** |
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* The end date for a TimePeriod representing the ending boundary of the time period |
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*/ |
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var end: Date? {get set} |
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var end: Date? { get set } |
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} |
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public extension TimePeriodProtocol { |
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// MARK: - Information |
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/** |
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* True if the `TimePeriod`'s duration is zero |
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*/ |
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var isMoment: Bool { |
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return self.beginning == self.end |
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return beginning == end |
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} |
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/** |
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@ -46,8 +44,8 @@ public extension TimePeriodProtocol {
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* Returns the max int if beginning or end are nil. |
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*/ |
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var years: Int { |
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if self.beginning != nil && self.end != nil { |
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return self.beginning!.yearsEarlier(than: self.end!) |
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if beginning != nil, end != nil { |
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return beginning!.yearsEarlier(than: end!) |
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} |
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return Int.max |
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} |
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@ -57,8 +55,8 @@ public extension TimePeriodProtocol {
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* Returns the max int if beginning or end are nil. |
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*/ |
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var weeks: Int { |
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if self.beginning != nil && self.end != nil { |
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return self.beginning!.weeksEarlier(than: self.end!) |
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if beginning != nil, end != nil { |
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return beginning!.weeksEarlier(than: end!) |
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} |
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return Int.max |
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} |
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@ -68,8 +66,8 @@ public extension TimePeriodProtocol {
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* Returns the max int if beginning or end are nil. |
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*/ |
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var days: Int { |
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if self.beginning != nil && self.end != nil { |
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return self.beginning!.daysEarlier(than: self.end!) |
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if beginning != nil, end != nil { |
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return beginning!.daysEarlier(than: end!) |
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} |
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return Int.max |
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} |
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@ -79,8 +77,8 @@ public extension TimePeriodProtocol {
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* Returns the max int if beginning or end are nil. |
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*/ |
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var hours: Int { |
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if self.beginning != nil && self.end != nil { |
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return self.beginning!.hoursEarlier(than: self.end!) |
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if beginning != nil, end != nil { |
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return beginning!.hoursEarlier(than: end!) |
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} |
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return Int.max |
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} |
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@ -90,8 +88,8 @@ public extension TimePeriodProtocol {
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* Returns the max int if beginning or end are nil. |
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*/ |
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var minutes: Int { |
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if self.beginning != nil && self.end != nil { |
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return self.beginning!.minutesEarlier(than: self.end!) |
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if beginning != nil, end != nil { |
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return beginning!.minutesEarlier(than: end!) |
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} |
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return Int.max |
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} |
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@ -101,8 +99,8 @@ public extension TimePeriodProtocol {
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* Returns the max int if beginning or end are nil. |
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*/ |
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var seconds: Int { |
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if self.beginning != nil && self.end != nil { |
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return self.beginning!.secondsEarlier(than: self.end!) |
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if beginning != nil, end != nil { |
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return beginning!.secondsEarlier(than: end!) |
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} |
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return Int.max |
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} |
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@ -112,7 +110,7 @@ public extension TimePeriodProtocol {
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* Returns a time chunk with all zeroes if beginning or end are nil. |
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*/ |
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var chunk: TimeChunk { |
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if beginning != nil && end != nil { |
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if beginning != nil, end != nil { |
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return beginning!.chunkBetween(date: end!) |
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} |
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return TimeChunk(seconds: 0, minutes: 0, hours: 0, days: 0, weeks: 0, months: 0, years: 0) |
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@ -123,8 +121,8 @@ public extension TimePeriodProtocol {
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* `TimePeriod` as a `TimeInterval`. |
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*/ |
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var duration: TimeInterval { |
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if self.beginning != nil && self.end != nil { |
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return abs(self.beginning!.timeIntervalSince(self.end!)) |
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if beginning != nil, end != nil { |
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return abs(beginning!.timeIntervalSince(end!)) |
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} |
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return TimeInterval(Double.greatestFiniteMagnitude) |
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@ -144,37 +142,36 @@ public extension TimePeriodProtocol {
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* - returns: The relationship between self and the given time period |
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*/ |
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func relation(to period: TimePeriodProtocol) -> Relation { |
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//Make sure that all start and end points exist for comparison |
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if (self.beginning != nil && self.end != nil && period.beginning != nil && period.end != nil) { |
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//Make sure time periods are of positive durations |
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if (self.beginning!.isEarlier(than: self.end!) && period.beginning!.isEarlier(than: period.end!)) { |
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//Make comparisons |
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if (period.end!.isEarlier(than: self.beginning!)) { |
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// Make sure that all start and end points exist for comparison |
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if beginning != nil, end != nil, period.beginning != nil, period.end != nil { |
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// Make sure time periods are of positive durations |
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if beginning!.isEarlier(than: end!), period.beginning!.isEarlier(than: period.end!) { |
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// Make comparisons |
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if period.end!.isEarlier(than: beginning!) { |
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return .after |
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} else if (period.end!.equals(self.beginning!)) { |
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} else if period.end!.equals(beginning!) { |
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return .startTouching |
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} else if (period.beginning!.isEarlier(than: self.beginning!) && period.end!.isEarlier(than: self.end!)) { |
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} else if period.beginning!.isEarlier(than: beginning!), period.end!.isEarlier(than: end!) { |
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return .startInside |
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} else if (period.beginning!.equals(self.beginning!) && period.end!.isLater(than: self.end!)) { |
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} else if period.beginning!.equals(beginning!), period.end!.isLater(than: end!) { |
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return .insideStartTouching |
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} else if (period.beginning!.equals(self.beginning!) && period.end!.isEarlier(than: self.end!)) { |
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} else if period.beginning!.equals(beginning!), period.end!.isEarlier(than: end!) { |
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return .enclosingStartTouching |
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} else if (period.beginning!.isLater(than: self.beginning!) && period.end!.isEarlier(than: self.end!)) { |
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} else if period.beginning!.isLater(than: beginning!), period.end!.isEarlier(than: end!) { |
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return .enclosing |
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} else if (period.beginning!.isLater(than: self.beginning!) && period.end!.equals(self.end!)) { |
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} else if period.beginning!.isLater(than: beginning!), period.end!.equals(end!) { |
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return .enclosingEndTouching |
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} else if (period.beginning!.equals(self.beginning!) && period.end!.equals(self.end!)) { |
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} else if period.beginning!.equals(beginning!), period.end!.equals(end!) { |
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return .exactMatch |
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} else if (period.beginning!.isEarlier(than: self.beginning!) && period.end!.isLater(than: self.end!)) { |
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} else if period.beginning!.isEarlier(than: beginning!), period.end!.isLater(than: end!) { |
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return .inside |
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} else if (period.beginning!.isEarlier(than: self.beginning!) && period.end!.equals(self.end!)) { |
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} else if period.beginning!.isEarlier(than: beginning!), period.end!.equals(end!) { |
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return .insideEndTouching |
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} else if (period.beginning!.isEarlier(than: self.end!) && period.end!.isLater(than: self.end!)) { |
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} else if period.beginning!.isEarlier(than: end!), period.end!.isLater(than: end!) { |
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return .endInside |
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} else if (period.beginning!.equals(self.end!) && period.end!.isLater(than: self.end!)) { |
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} else if period.beginning!.equals(end!), period.end!.isLater(than: end!) { |
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return .endTouching |
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} else if (period.beginning!.isLater(than: self.end!)) { |
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} else if period.beginning!.isLater(than: end!) { |
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return .before |
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} |
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} |
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@ -192,7 +189,7 @@ public extension TimePeriodProtocol {
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* - returns: True if the periods are the same |
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*/ |
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func equals(_ period: TimePeriodProtocol) -> Bool { |
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return self.beginning == period.beginning && self.end == period.end |
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return beginning == period.beginning && end == period.end |
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} |
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/** |
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@ -204,7 +201,7 @@ public extension TimePeriodProtocol {
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* - returns: True if self is inside of the given `TimePeriod` |
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*/ |
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func isInside(of period: TimePeriodProtocol) -> Bool { |
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return period.beginning!.isEarlierThanOrEqual(to: self.beginning!) && period.end!.isLaterThanOrEqual(to: self.end!) |
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return period.beginning!.isEarlierThanOrEqual(to: beginning!) && period.end!.isLaterThanOrEqual(to: end!) |
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} |
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/** |
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@ -216,10 +213,10 @@ public extension TimePeriodProtocol {
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* - returns: True if the given `TimePeriod` is inside of self |
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*/ |
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func contains(_ date: Date, interval: Interval) -> Bool { |
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if (interval == .open) { |
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return self.beginning!.isEarlier(than: date) && self.end!.isLater(than: date) |
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} else if (interval == .closed) { |
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return (self.beginning!.isEarlierThanOrEqual(to: date) && self.end!.isLaterThanOrEqual(to: date)) |
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if interval == .open { |
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return beginning!.isEarlier(than: date) && end!.isLater(than: date) |
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} else if interval == .closed { |
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return (beginning!.isEarlierThanOrEqual(to: date) && end!.isLaterThanOrEqual(to: date)) |
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} |
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return false |
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@ -234,7 +231,7 @@ public extension TimePeriodProtocol {
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* - returns: True if the given `TimePeriod` is inside of self |
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*/ |
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func contains(_ period: TimePeriodProtocol) -> Bool { |
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return self.beginning!.isEarlierThanOrEqual(to: period.beginning!) && self.end!.isLaterThanOrEqual(to: period.end!) |
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return beginning!.isEarlierThanOrEqual(to: period.beginning!) && end!.isLaterThanOrEqual(to: period.end!) |
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} |
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/** |
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@ -245,16 +242,16 @@ public extension TimePeriodProtocol {
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* - returns: True if there is a period of time that is shared by both `TimePeriod`s |
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*/ |
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func overlaps(with period: TimePeriodProtocol) -> Bool { |
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//Outside -> Inside |
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if (period.beginning!.isEarlier(than: self.beginning!) && period.end!.isLater(than: self.beginning!)) { |
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// Outside -> Inside |
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if period.beginning!.isEarlier(than: beginning!), period.end!.isLater(than: beginning!) { |
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return true |
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} |
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//Enclosing |
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else if (period.beginning!.isLaterThanOrEqual(to: self.beginning!) && period.end!.isEarlierThanOrEqual(to: self.end!)) { |
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// Enclosing |
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else if period.beginning!.isLaterThanOrEqual(to: beginning!), period.end!.isEarlierThanOrEqual(to: end!) { |
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return true |
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} |
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//Inside -> Out |
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else if(period.beginning!.isEarlier(than: self.end!) && period.end!.isLater(than: self.end!)) { |
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// Inside -> Out |
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else if period.beginning!.isEarlier(than: end!), period.end!.isLater(than: end!) { |
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return true |
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} |
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return false |
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@ -268,7 +265,7 @@ public extension TimePeriodProtocol {
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* - returns: True if there is a period of time or moment that is shared by both `TimePeriod`s |
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*/ |
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func intersects(with period: TimePeriodProtocol) -> Bool { |
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return self.relation(to: period) != .after && self.relation(to: period) != .before |
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return relation(to: period) != .after && relation(to: period) != .before |
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} |
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/** |
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@ -279,7 +276,7 @@ public extension TimePeriodProtocol {
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* - returns: True if there is a period of time between self and the given `TimePeriod` not contained by either period |
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*/ |
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func hasGap(between period: TimePeriodProtocol) -> Bool { |
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return self.isBefore(period: period) || self.isAfter(period: period) |
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return isBefore(period: period) || isAfter(period: period) |
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} |
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/** |
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@ -290,10 +287,10 @@ public extension TimePeriodProtocol {
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* - returns: The gap between the periods. Zero if there is no gap. |
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*/ |
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func gap(between period: TimePeriodProtocol) -> TimeInterval { |
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if (self.end!.isEarlier(than: period.beginning!)) { |
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return abs(self.end!.timeIntervalSince(period.beginning!)) |
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} else if (period.end!.isEarlier(than: self.beginning!)) { |
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return abs(period.end!.timeIntervalSince(self.beginning!)) |
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if end!.isEarlier(than: period.beginning!) { |
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return abs(end!.timeIntervalSince(period.beginning!)) |
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} else if period.end!.isEarlier(than: beginning!) { |
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return abs(period.end!.timeIntervalSince(beginning!)) |
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} |
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return 0 |
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} |
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@ -307,8 +304,8 @@ public extension TimePeriodProtocol {
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* - returns: The gap between the periods, zero if there is no gap |
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*/ |
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func gap(between period: TimePeriodProtocol) -> TimeChunk? { |
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if self.end != nil && period.beginning != nil { |
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return (self.end?.chunkBetween(date: period.beginning!))! |
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if end != nil, period.beginning != nil { |
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return (end?.chunkBetween(date: period.beginning!))! |
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} |
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return nil |
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} |
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@ -321,7 +318,7 @@ public extension TimePeriodProtocol {
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* - returns: True if self is after the given `TimePeriod` |
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*/ |
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func isAfter(period: TimePeriodProtocol) -> Bool { |
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return self.relation(to: period) == .after |
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return relation(to: period) == .after |
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} |
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/** |
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@ -332,7 +329,7 @@ public extension TimePeriodProtocol {
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* - returns: True if self is after the given `TimePeriod` |
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*/ |
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func isBefore(period: TimePeriodProtocol) -> Bool { |
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return self.relation(to: period) == .before |
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return relation(to: period) == .before |
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} |
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// MARK: - Shifts |
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@ -345,8 +342,8 @@ public extension TimePeriodProtocol {
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* - parameter timeInterval: The time interval to shift the period by |
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*/ |
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mutating func shift(by timeInterval: TimeInterval) { |
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self.beginning?.addTimeInterval(timeInterval) |
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self.end?.addTimeInterval(timeInterval) |
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beginning?.addTimeInterval(timeInterval) |
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end?.addTimeInterval(timeInterval) |
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} |
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/** |
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@ -355,8 +352,8 @@ public extension TimePeriodProtocol {
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* - parameter chunk: The time chunk to shift the period by |
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*/ |
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mutating func shift(by chunk: TimeChunk) { |
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self.beginning = self.beginning?.add(chunk) |
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self.end = self.end?.add(chunk) |
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beginning = beginning?.add(chunk) |
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end = end?.add(chunk) |
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} |
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// MARK: - Lengthen / Shorten |
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@ -372,12 +369,12 @@ public extension TimePeriodProtocol {
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mutating func lengthen(by timeInterval: TimeInterval, at anchor: Anchor) { |
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switch anchor { |
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case .beginning: |
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self.end = self.end?.addingTimeInterval(timeInterval) |
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end = end?.addingTimeInterval(timeInterval) |
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case .center: |
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self.beginning = self.beginning?.addingTimeInterval(-timeInterval/2.0) |
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self.end = self.end?.addingTimeInterval(timeInterval/2.0) |
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beginning = beginning?.addingTimeInterval(-timeInterval / 2.0) |
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end = end?.addingTimeInterval(timeInterval / 2.0) |
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case .end: |
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self.beginning = self.beginning?.addingTimeInterval(-timeInterval) |
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beginning = beginning?.addingTimeInterval(-timeInterval) |
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} |
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} |
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@ -390,12 +387,12 @@ public extension TimePeriodProtocol {
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mutating func lengthen(by chunk: TimeChunk, at anchor: Anchor) { |
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switch anchor { |
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case .beginning: |
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self.end = self.end?.add(chunk) |
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end = end?.add(chunk) |
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case .center: |
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// Do not lengthen by TimeChunk at center |
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print("Mutation via chunk from center anchor is not supported.") |
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case .end: |
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self.beginning = self.beginning?.subtract(chunk) |
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beginning = beginning?.subtract(chunk) |
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} |
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} |
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@ -408,12 +405,12 @@ public extension TimePeriodProtocol {
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mutating func shorten(by timeInterval: TimeInterval, at anchor: Anchor) { |
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switch anchor { |
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case .beginning: |
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self.end = self.end?.addingTimeInterval(-timeInterval) |
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end = end?.addingTimeInterval(-timeInterval) |
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case .center: |
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self.beginning = self.beginning?.addingTimeInterval(timeInterval/2.0) |
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self.end = self.end?.addingTimeInterval(-timeInterval/2.0) |
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beginning = beginning?.addingTimeInterval(timeInterval / 2.0) |
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end = end?.addingTimeInterval(-timeInterval / 2.0) |
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case .end: |
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self.beginning = self.beginning?.addingTimeInterval(timeInterval) |
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beginning = beginning?.addingTimeInterval(timeInterval) |
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} |
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} |
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@ -426,12 +423,12 @@ public extension TimePeriodProtocol {
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mutating func shorten(by chunk: TimeChunk, at anchor: Anchor) { |
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switch anchor { |
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case .beginning: |
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self.end = self.end?.subtract(chunk) |
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end = end?.subtract(chunk) |
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case .center: |
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// Do not shorten by TimeChunk at center |
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print("Mutation via chunk from center anchor is not supported.") |
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case .end: |
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self.beginning = self.beginning?.add(chunk) |
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beginning = beginning?.add(chunk) |
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} |
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} |
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} |
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@ -444,8 +441,8 @@ public extension TimePeriodProtocol {
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* [Visit our github page](https://github.com/MatthewYork/DateTools#time-periods) for more information. |
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*/ |
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open class TimePeriod: TimePeriodProtocol { |
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// MARK: - Variables |
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/** |
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* The start date for a TimePeriod representing the starting boundary of the time period |
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*/ |
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@ -458,9 +455,7 @@ open class TimePeriod: TimePeriodProtocol {
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// MARK: - Initializers |
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init() { |
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} |
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init() {} |
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init(beginning: Date?, end: Date?) { |
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self.beginning = beginning |
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@ -469,27 +464,27 @@ open class TimePeriod: TimePeriodProtocol {
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init(beginning: Date, duration: TimeInterval) { |
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self.beginning = beginning |
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self.end = beginning + duration |
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end = beginning + duration |
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} |
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init(end: Date, duration: TimeInterval) { |
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self.end = end |
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self.beginning = end.addingTimeInterval(-duration) |
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beginning = end.addingTimeInterval(-duration) |
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} |
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init(beginning: Date, chunk: TimeChunk) { |
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self.beginning = beginning |
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self.end = beginning + chunk |
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end = beginning + chunk |
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} |
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init(end: Date, chunk: TimeChunk) { |
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self.end = end |
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self.beginning = end - chunk |
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beginning = end - chunk |
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} |
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init(chunk: TimeChunk) { |
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self.beginning = Date() |
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self.end = self.beginning?.add(chunk) |
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beginning = Date() |
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end = beginning?.add(chunk) |
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} |
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// MARK: - Shifted |
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@ -503,8 +498,8 @@ open class TimePeriod: TimePeriodProtocol {
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*/ |
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func shifted(by timeInterval: TimeInterval) -> TimePeriod { |
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let timePeriod = TimePeriod() |
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timePeriod.beginning = self.beginning?.addingTimeInterval(timeInterval) |
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timePeriod.end = self.end?.addingTimeInterval(timeInterval) |
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timePeriod.beginning = beginning?.addingTimeInterval(timeInterval) |
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timePeriod.end = end?.addingTimeInterval(timeInterval) |
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return timePeriod |
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} |
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@ -517,8 +512,8 @@ open class TimePeriod: TimePeriodProtocol {
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*/ |
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func shifted(by chunk: TimeChunk) -> TimePeriod { |
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let timePeriod = TimePeriod() |
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timePeriod.beginning = self.beginning?.add(chunk) |
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timePeriod.end = self.end?.add(chunk) |
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timePeriod.beginning = beginning?.add(chunk) |
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timePeriod.end = end?.add(chunk) |
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return timePeriod |
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} |
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@ -538,14 +533,14 @@ open class TimePeriod: TimePeriodProtocol {
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let timePeriod = TimePeriod() |
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switch anchor { |
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|
case .beginning: |
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timePeriod.beginning = self.beginning |
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timePeriod.end = self.end?.addingTimeInterval(timeInterval) |
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timePeriod.beginning = beginning |
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timePeriod.end = end?.addingTimeInterval(timeInterval) |
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case .center: |
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timePeriod.beginning = self.beginning?.addingTimeInterval(-timeInterval) |
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timePeriod.end = self.end?.addingTimeInterval(timeInterval) |
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timePeriod.beginning = beginning?.addingTimeInterval(-timeInterval) |
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timePeriod.end = end?.addingTimeInterval(timeInterval) |
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case .end: |
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timePeriod.beginning = self.beginning?.addingTimeInterval(-timeInterval) |
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|
timePeriod.end = self.end |
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|
timePeriod.beginning = beginning?.addingTimeInterval(-timeInterval) |
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|
timePeriod.end = end |
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} |
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|
return timePeriod |
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|
@ -590,8 +585,8 @@ open class TimePeriod: TimePeriodProtocol {
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|
timePeriod.beginning = beginning |
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|
timePeriod.end = end?.addingTimeInterval(-timeInterval) |
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|
case .center: |
|
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|
|
timePeriod.beginning = beginning?.addingTimeInterval(-timeInterval/2) |
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|
timePeriod.end = end?.addingTimeInterval(timeInterval/2) |
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timePeriod.beginning = beginning?.addingTimeInterval(-timeInterval / 2) |
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timePeriod.end = end?.addingTimeInterval(timeInterval / 2) |
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|
case .end: |
|
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|
|
timePeriod.beginning = beginning?.addingTimeInterval(timeInterval) |
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|
timePeriod.end = end |
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|
@ -629,7 +624,7 @@ open class TimePeriod: TimePeriodProtocol {
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/** |
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|
* Operator overload for checking if two `TimePeriod`s are equal |
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*/ |
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|
static func ==(leftAddend: TimePeriod, rightAddend: TimePeriod) -> Bool { |
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|
static func == (leftAddend: TimePeriod, rightAddend: TimePeriod) -> Bool { |
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|
|
return leftAddend.equals(rightAddend) |
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} |
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|
@ -637,14 +632,14 @@ open class TimePeriod: TimePeriodProtocol {
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/** |
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|
|
* Operator overload for lengthening a `TimePeriod` by a `TimeInterval` |
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|
*/ |
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|
|
static func +(leftAddend: TimePeriod, rightAddend: TimeInterval) -> TimePeriod { |
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|
static func + (leftAddend: TimePeriod, rightAddend: TimeInterval) -> TimePeriod { |
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return leftAddend.lengthened(by: rightAddend, at: .beginning) |
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} |
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/** |
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|
|
* Operator overload for lengthening a `TimePeriod` by a `TimeChunk` |
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*/ |
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static func +(leftAddend: TimePeriod, rightAddend: TimeChunk) -> TimePeriod { |
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static func + (leftAddend: TimePeriod, rightAddend: TimeChunk) -> TimePeriod { |
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|
return leftAddend.lengthened(by: rightAddend, at: .beginning) |
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} |
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|
@ -652,21 +647,21 @@ open class TimePeriod: TimePeriodProtocol {
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/** |
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|
* Operator overload for shortening a `TimePeriod` by a `TimeInterval` |
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|
*/ |
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|
static func -(minuend: TimePeriod, subtrahend: TimeInterval) -> TimePeriod { |
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static func - (minuend: TimePeriod, subtrahend: TimeInterval) -> TimePeriod { |
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|
return minuend.shortened(by: subtrahend, at: .beginning) |
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} |
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/** |
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|
* Operator overload for shortening a `TimePeriod` by a `TimeChunk` |
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*/ |
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static func -(minuend: TimePeriod, subtrahend: TimeChunk) -> TimePeriod { |
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static func - (minuend: TimePeriod, subtrahend: TimeChunk) -> TimePeriod { |
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|
return minuend.shortened(by: subtrahend, at: .beginning) |
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|
} |
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|
/** |
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|
|
* Operator overload for checking if a `TimePeriod` is equal to a `TimePeriodProtocol` |
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|
*/ |
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|
|
static func ==(left: TimePeriod, right: TimePeriodProtocol) -> Bool { |
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|
|
static func == (left: TimePeriod, right: TimePeriodProtocol) -> Bool { |
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|
|
return left.equals(right) |
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|
} |
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|
} |
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Abhishek Banthia
6 years ago