aboutsummaryrefslogtreecommitdiff
path: root/lib/mauve/mauve_time.rb
blob: 2251c53f2e954ce4b0946342d3a0275878ddfc05 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
require 'date'
require 'time'

class Date
  def to_mauvetime
    Mauve::MauveTime.parse(self.to_s)
  end
end

class DateTime
  def to_mauvetime
    Mauve::MauveTime.parse(self.to_s)
  end

  def to_s_relative(*args)
    self.to_time.to_s_relative(*args)
  end

  def to_s_human
    self.to_time.to_s_human
  end

  def in_x_hours(*args)
    self.to_s_human(*args)
  end

end

class Time
  def to_mauvetime
    Mauve::MauveTime.at(self.to_i,self.usec)
  end

  def in_x_hours(n, type="wallclock")
    t = self.dup
    #
    # Do this in minutes rather than hours
    #
    n = n.to_i*3600
  
    test = case type
      when "working"
        "working_hours?"
      when "daytime"
        "daytime_hours?"
      else
        "wallclock_hours?"
    end

    step = 3600

    #
    # Work out how much time to subtract now
    #
    while n >= 0
      #
      # If we're currently OK, and we won't be OK after the next step (or
      # vice-versa) decrease step size, and try again
      #
      if (t.__send__(test) != (t+step).__send__(test)) 
        #
        # Unless we're on the smallest step, try a smaller one.
        #
        unless step == 1
          step /= 60

        else
          n -= step if t.__send__(test)
          t += step

          #
          # Set the step size back to an hour
          #
          step = 3600
        end

        next
      end

      #
      # Decrease the time by the step size if we're currently OK.
      #
      n -= step if t.__send__(test)
      t += step
    end
    
    #
    # Substract any overshoot.
    #
    t += n if n < 0

    t
  end

  #
  # The working day is from 8.30am until 17:00
  #
  def working_hours?
    (1..5).include?(self.wday) and ((9..16).include?(self.hour) or  (self.hour == 8 && self.min >= 30))
  end

  #
  # The daytime day is 14 hours long
  #
  def daytime_hours?
    (8..21).include?(self.hour)
  end
  
  #
  # The daytime day is 14 hours long
  #
  def wallclock_hours?
    true
  end
  
  #
  # In the DEAD ZONE! 
  #
  def dead_zone?
    (3..6).include?(self.hour)
  end
    
  def to_s_relative(now = Time.now)
    #
    # Make sure now is the correct class
    #
    now now.to_time if now.is_a?(DateTime)

    raise ArgumentError, "now must be a Time" unless now.is_a?(Time)

    diff = (now.to_f - self.to_f).round.to_i.abs
    n = nil

    if diff < 120
      n = nil
    elsif diff < 3600
      n = diff/60.0
      unit = "minute"
    elsif diff < 172800
      n = diff/3600.0
      unit = "hour"
    elsif diff < 5184000 
      n = diff/86400.0
      unit = "day"
    else
      n = diff/2592000.0
      unit = "month"
    end

    unless n.nil?
      n = n.round.to_i 
      unit += "s" if n != 1
    end

    # The FUTURE
    if self > now
      return "shortly" if n.nil?
      "in #{n} #{unit}"
    else
      return "just now" if n.nil?
      "#{n} #{unit}"+" ago"
    end
  end

  def to_s_human
    _now = Time.now

    if _now.strftime("%F") == self.strftime("%F")  
      self.strftime("%R today")

    # Tomorrow is in 24 hours
    elsif (_now + 86400).strftime("%F") == self.strftime("%F")
      self.strftime("%R tomorrow")

    # Yesterday is in 24 ago
    elsif (_now - 86400).strftime("%F") == self.strftime("%F")
      self.strftime("%R yesterday")

    # Next week starts in 6 days.
    elsif self > _now and self < (_now + 86400 * 6)
      self.strftime("%R on %A")

    else
      self.strftime("%R on %a %d %b %Y")

    end

  end

end

module Mauve
  class MauveTime < Time

    def to_s
      self.iso8601
    end

    def to_mauvetime
      self
    end
    
  end
end