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Add swift scheduling exercise (#749)
* Fixes to concept tree * Add Swift Scheduling exercise with instructions, examples, and tests * Apply suggestion from @ryanplusplus --------- Co-authored-by: Ryan Hartlage <2488333+ryanplusplus@users.noreply.github.com>
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‎config.json‎

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"prerequisites": [],
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"difficulty": 4
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},
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{
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"slug": "swift-scheduling",
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"name": "Swift Scheduling",
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"uuid": "7f8b5494-1424-488a-a650-e5ceca8ed6f2",
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"practices": [],
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"prerequisites": [],
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"difficulty": 4
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},
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{
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"slug": "grade-school",
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"name": "Grade School",

‎exercises/practice/swift-scheduling/.docs/instructions.md‎

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# Instructions
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Your task is to convert delivery date descriptions to _actual_ delivery dates, based on when the meeting started.
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There are two types of delivery date descriptions:
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1. Fixed: a predefined set of words.
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2. Variable: words that have a variable component, but follow a predefined set of patterns.
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## Fixed delivery date descriptions
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There are three fixed delivery date descriptions:
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- `"NOW"`
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- `"ASAP"` (As Soon As Possible)
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- `"EOW"` (End Of Week)
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The following table shows how to translate them:
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| Description | Meeting start | Delivery date |
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| ----------- | ----------------------------- | ----------------------------------- |
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| `"NOW"` | - | Two hours after the meeting started |
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| `"ASAP"` | Before 13:00 | Today at 17:00 |
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| `"ASAP"` | After or at 13:00 | Tomorrow at 13:00 |
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| `"EOW"` | Monday, Tuesday, or Wednesday | Friday at 17:00 |
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| `"EOW"` | Thursday or Friday | Sunday at 20:00 |
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## Variable delivery date descriptions
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There are two variable delivery date description patterns:
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- `"<N>M"` (N-th month)
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- `"Q<N>"` (N-th quarter)
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| Description | Meeting start | Delivery date |
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| ----------- | ------------------------- | --------------------------------------------------------- |
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| `"<N>M"` | Before N-th month | At 8:00 on the _first_ workday of this year's N-th month |
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| `"<N>M"` | After or in N-th month | At 8:00 on the _first_ workday of next year's N-th month |
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| `"Q<N>"` | Before or in N-th quarter | At 8:00 on the _last_ workday of this year's N-th quarter |
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| `"Q<N>"` | After N-th quarter | At 8:00 on the _last_ workday of next year's N-th quarter |
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~~~~exercism/note
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A workday is a Monday, Tuesday, Wednesday, Thursday, or Friday.
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A year has four quarters, each with three months:
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1. January/February/March
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2. April/May/June
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3. July/August/September
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4. October/November/December.
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~~~~

‎exercises/practice/swift-scheduling/.docs/introduction.md‎

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# Introduction
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This week, it is your turn to take notes in the department's planning meeting.
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In this meeting, your boss will set delivery dates for all open work items.
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Annoyingly, instead of specifying the _actual_ delivery dates, your boss will only _describe them_ in an abbreviated format.
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As many of your colleagues won't be familiar with this corporate lingo, you'll need to convert these delivery date descriptions to actual delivery dates.

‎exercises/practice/swift-scheduling/.meta/config.json‎

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{
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"authors": [
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"meatball133"
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],
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"files": {
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"solution": [
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"src/swift_scheduling.cr"
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],
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"test": [
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"spec/swift_scheduling_spec.cr"
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],
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"example": [
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".meta/src/example.cr"
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]
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},
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"blurb": "Convert delivery date descriptions to actual delivery dates.",
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"source": "Erik Schierboom",
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"source_url": "https://github.com/exercism/problem-specifications/pull/2536"
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}

‎exercises/practice/swift-scheduling/.meta/src/example.cr‎

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module SwiftScheduling
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private def self.first_workday_of_month(year : Int32, month : Int32) : Time
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first = Time.utc(year, month, 1, 8, 0, 0)
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case first.day_of_week
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when Time::DayOfWeek::Saturday
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first + 2.days
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when Time::DayOfWeek::Sunday
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first + 1.day
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else
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first
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end
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end
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private def self.last_workday_of_month(year : Int32, month : Int32) : Time
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next_month = month == 12 ? 1 : month + 1
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next_year = month == 12 ? year + 1 : year
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last = Time.utc(next_year, next_month, 1, 8, 0, 0) - 1.day
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case last.day_of_week
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when Time::DayOfWeek::Saturday
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last - 1.day
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when Time::DayOfWeek::Sunday
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last - 2.days
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else
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last
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end
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end
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def self.delivery_date(meeting_start : Time, description : String) : Time
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result = meeting_start
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case description
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when "NOW"
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result = meeting_start + 2.hours
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when "ASAP"
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if meeting_start.hour < 13
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result = Time.utc(meeting_start.year, meeting_start.month, meeting_start.day, 17, 0, 0)
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else
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tomorrow = meeting_start + 1.day
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result = Time.utc(tomorrow.year, tomorrow.month, tomorrow.day, 13, 0, 0)
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end
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when "EOW"
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case meeting_start.day_of_week.to_i
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when 1..3 # Monday to Wednesday
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friday = meeting_start + (5 - meeting_start.day_of_week.to_i).days
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result = Time.utc(friday.year, friday.month, friday.day, 17, 0, 0)
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when 4, 5 # Thursday or Friday
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sunday = meeting_start + (7 - meeting_start.day_of_week.to_i).days
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result = Time.utc(sunday.year, sunday.month, sunday.day, 20, 0, 0)
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end
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else
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# | `"<N>M"` | Before N-th month | At 8:00 on the _first_ workday of this year's N-th month |
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# | `"<N>M"` | After or in N-th month | At 8:00 on the _first_ workday of next year's N-th month |
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# | `"Q<N>"` | Before or in N-th quarter | At 8:00 on the _last_ workday of this year's N-th quarter |
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# | `"Q<N>"` | After N-th quarter | At 8:00 on the _last_ workday of next year's N-th quarter |
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if description.includes?("M")
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month = description[0..-2].to_i
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year = meeting_start.month < month ? meeting_start.year : meeting_start.year + 1
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result = first_workday_of_month(year, month)
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elsif description.includes?("Q")
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quarter = description[1..-1].to_i
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start_quarter = ((meeting_start.month - 1) // 3) + 1
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year = start_quarter <= quarter ? meeting_start.year : meeting_start.year + 1
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result = last_workday_of_month(year, quarter * 3)
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end
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end
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result
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end
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end

‎exercises/practice/swift-scheduling/.meta/test_template.ecr‎

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require "spec"
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require "../src/*"
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describe "<%-= to_capitalized(@json["exercise"].to_s) %>" do
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<%- @json["cases"].as_a.each do |cases| %>
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<%= status()%> "<%-= cases["description"] %>" do
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start = Time.parse_utc("<%= cases["input"]["meetingStart"] %>", "%Y-%m-%dT%H:%M:%S")
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expected = Time.parse_utc("<%-= cases["expected"] %>", "%Y-%m-%dT%H:%M:%S")
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<%-= to_capitalized(@json["exercise"].to_s) %>.<%= cases["property"].to_s.underscore %>(start, <%= cases["input"]["description"].to_s.inspect %>).should eq(expected)
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end
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<% end %>
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end

‎exercises/practice/swift-scheduling/.meta/tests.toml‎

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# This is an auto-generated file.
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#
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# Regenerating this file via `configlet sync` will:
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# - Recreate every `description` key/value pair
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# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
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# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
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# - Preserve any other key/value pair
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#
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# As user-added comments (using the # character) will be removed when this file
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# is regenerated, comments can be added via a `comment` key.
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[1d0e6e72-f370-408c-bc64-5dafa9c6da73]
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description = "NOW translates to two hours later"
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[93325e7b-677d-4d96-b017-2582af879dc2]
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description = "ASAP before one in the afternoon translates to today at five in the afternoon"
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[cb4252a3-c4c1-41f6-8b8c-e7269733cef8]
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description = "ASAP at one in the afternoon translates to tomorrow at one in the afternoon"
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[6fddc1ea-2fe9-4c60-81f7-9220d2f45537]
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description = "ASAP after one in the afternoon translates to tomorrow at one in the afternoon"
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[25f46bf9-6d2a-4e95-8edd-f62dd6bc8a6e]
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description = "EOW on Monday translates to Friday at five in the afternoon"
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[0b375df5-d198-489e-acee-fd538a768616]
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description = "EOW on Tuesday translates to Friday at five in the afternoon"
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[4afbb881-0b5c-46be-94e1-992cdc2a8ca4]
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description = "EOW on Wednesday translates to Friday at five in the afternoon"
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[e1341c2b-5e1b-4702-a95c-a01e8e96e510]
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description = "EOW on Thursday translates to Sunday at eight in the evening"
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[bbffccf7-97f7-4244-888d-bdd64348fa2e]
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description = "EOW on Friday translates to Sunday at eight in the evening"
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[d651fcf4-290e-407c-8107-36b9076f39b2]
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description = "EOW translates to leap day"
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[439bf09f-3a0e-44e7-bad5-b7b6d0c4505a]
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description = "2M before the second month of this year translates to the first workday of the second month of this year"
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[86d82e83-c481-4fb4-9264-625de7521340]
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description = "11M in the eleventh month translates to the first workday of the eleventh month of next year"
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[0d0b8f6a-1915-46f5-a630-1ff06af9da08]
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description = "4M in the ninth month translates to the first workday of the fourth month of next year"
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[06d401e3-8461-438f-afae-8d26aa0289e0]
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description = "Q1 in the first quarter translates to the last workday of the first quarter of this year"
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[eebd5f32-b16d-4ecd-91a0-584b0364b7ed]
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description = "Q4 in the second quarter translates to the last workday of the fourth quarter of this year"
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[c920886c-44ad-4d34-a156-dc4176186581]
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description = "Q3 in the fourth quarter translates to the last workday of the third quarter of next year"

‎exercises/practice/swift-scheduling/spec/swift_scheduling_spec.cr‎

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require "spec"
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require "../src/*"
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describe "SwiftScheduling" do
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it "NOW translates to two hours later" do
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start = Time.parse_utc("2012-02-13T09:00:00", "%Y-%m-%dT%H:%M:%S")
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expected = Time.parse_utc("2012-02-13T11:00:00", "%Y-%m-%dT%H:%M:%S")
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SwiftScheduling.delivery_date(start, "NOW").should eq(expected)
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end
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pending "ASAP before one in the afternoon translates to today at five in the afternoon" do
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start = Time.parse_utc("1999-06-03T09:45:00", "%Y-%m-%dT%H:%M:%S")
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expected = Time.parse_utc("1999-06-03T17:00:00", "%Y-%m-%dT%H:%M:%S")
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SwiftScheduling.delivery_date(start, "ASAP").should eq(expected)
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end
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pending "ASAP at one in the afternoon translates to tomorrow at one in the afternoon" do
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start = Time.parse_utc("2008-12-21T13:00:00", "%Y-%m-%dT%H:%M:%S")
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expected = Time.parse_utc("2008-12-22T13:00:00", "%Y-%m-%dT%H:%M:%S")
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SwiftScheduling.delivery_date(start, "ASAP").should eq(expected)
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end
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pending "ASAP after one in the afternoon translates to tomorrow at one in the afternoon" do
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start = Time.parse_utc("2008-12-21T14:50:00", "%Y-%m-%dT%H:%M:%S")
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expected = Time.parse_utc("2008-12-22T13:00:00", "%Y-%m-%dT%H:%M:%S")
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SwiftScheduling.delivery_date(start, "ASAP").should eq(expected)
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end
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pending "EOW on Monday translates to Friday at five in the afternoon" do
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start = Time.parse_utc("2025-02-03T16:00:00", "%Y-%m-%dT%H:%M:%S")
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expected = Time.parse_utc("2025-02-07T17:00:00", "%Y-%m-%dT%H:%M:%S")
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SwiftScheduling.delivery_date(start, "EOW").should eq(expected)
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end
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pending "EOW on Tuesday translates to Friday at five in the afternoon" do
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start = Time.parse_utc("1997-04-29T10:50:00", "%Y-%m-%dT%H:%M:%S")
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expected = Time.parse_utc("1997-05-02T17:00:00", "%Y-%m-%dT%H:%M:%S")
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SwiftScheduling.delivery_date(start, "EOW").should eq(expected)
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end
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pending "EOW on Wednesday translates to Friday at five in the afternoon" do
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start = Time.parse_utc("2005-09-14T11:00:00", "%Y-%m-%dT%H:%M:%S")
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expected = Time.parse_utc("2005-09-16T17:00:00", "%Y-%m-%dT%H:%M:%S")
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SwiftScheduling.delivery_date(start, "EOW").should eq(expected)
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end
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pending "EOW on Thursday translates to Sunday at eight in the evening" do
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start = Time.parse_utc("2011-05-19T08:30:00", "%Y-%m-%dT%H:%M:%S")
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expected = Time.parse_utc("2011-05-22T20:00:00", "%Y-%m-%dT%H:%M:%S")
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SwiftScheduling.delivery_date(start, "EOW").should eq(expected)
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end
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pending "EOW on Friday translates to Sunday at eight in the evening" do
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start = Time.parse_utc("2022-08-05T14:00:00", "%Y-%m-%dT%H:%M:%S")
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expected = Time.parse_utc("2022-08-07T20:00:00", "%Y-%m-%dT%H:%M:%S")
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SwiftScheduling.delivery_date(start, "EOW").should eq(expected)
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end
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pending "EOW translates to leap day" do
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start = Time.parse_utc("2008-02-25T10:30:00", "%Y-%m-%dT%H:%M:%S")
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expected = Time.parse_utc("2008-02-29T17:00:00", "%Y-%m-%dT%H:%M:%S")
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SwiftScheduling.delivery_date(start, "EOW").should eq(expected)
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end
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pending "2M before the second month of this year translates to the first workday of the second month of this year" do
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start = Time.parse_utc("2007-01-02T14:15:00", "%Y-%m-%dT%H:%M:%S")
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expected = Time.parse_utc("2007-02-01T08:00:00", "%Y-%m-%dT%H:%M:%S")
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SwiftScheduling.delivery_date(start, "2M").should eq(expected)
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end
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pending "11M in the eleventh month translates to the first workday of the eleventh month of next year" do
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start = Time.parse_utc("2013-11-21T15:30:00", "%Y-%m-%dT%H:%M:%S")
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expected = Time.parse_utc("2014-11-03T08:00:00", "%Y-%m-%dT%H:%M:%S")
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SwiftScheduling.delivery_date(start, "11M").should eq(expected)
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end
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pending "4M in the ninth month translates to the first workday of the fourth month of next year" do
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start = Time.parse_utc("2019-11-18T15:15:00", "%Y-%m-%dT%H:%M:%S")
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expected = Time.parse_utc("2020-04-01T08:00:00", "%Y-%m-%dT%H:%M:%S")
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SwiftScheduling.delivery_date(start, "4M").should eq(expected)
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end
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pending "Q1 in the first quarter translates to the last workday of the first quarter of this year" do
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start = Time.parse_utc("2003-01-01T10:45:00", "%Y-%m-%dT%H:%M:%S")
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expected = Time.parse_utc("2003-03-31T08:00:00", "%Y-%m-%dT%H:%M:%S")
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SwiftScheduling.delivery_date(start, "Q1").should eq(expected)
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end
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pending "Q4 in the second quarter translates to the last workday of the fourth quarter of this year" do
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start = Time.parse_utc("2001-04-09T09:00:00", "%Y-%m-%dT%H:%M:%S")
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expected = Time.parse_utc("2001-12-31T08:00:00", "%Y-%m-%dT%H:%M:%S")
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SwiftScheduling.delivery_date(start, "Q4").should eq(expected)
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end
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pending "Q3 in the fourth quarter translates to the last workday of the third quarter of next year" do
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start = Time.parse_utc("2022-10-06T11:00:00", "%Y-%m-%dT%H:%M:%S")
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expected = Time.parse_utc("2023-09-29T08:00:00", "%Y-%m-%dT%H:%M:%S")
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SwiftScheduling.delivery_date(start, "Q3").should eq(expected)
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end
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end

‎exercises/practice/swift-scheduling/src/swift_scheduling.cr‎

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module SwiftScheduling
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def self.delivery_date(meeting_start : Time, description : String) : Time
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# Write your code for the 'Swift Scheduling' exercise in this file.
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end
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end

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